Instruction manual

Transkript

Instruction manual

Please keep next to the MVHR unit!
maxi 801 DC
maxi 1201 DC
maxi 2001 DC
maxi 3001 DC
maxi 4001 DC
Operating Instructions
Mechanical Ventilation Heat Recovery Unit
pict.: maxi 2001
Status: 09.09
pict.: Remote control
®
WÄRMERÜCKGEWINNUNG
Paul Wärmerückgewinnung GmbH
August-Horch-Straße 7
08141 Reinsdorf
Deutschland
Tel.: +49(0)375 - 303505 - 0
Fax: +49(0)375 - 303505 - 55
TABLE OF CONTENTS
Seite
0. INTRODUCTION.......................................................................................................................
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I. GENERAL MAINTENANCE......................................................................................................
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II. INSTALLATION........................................................................................................................
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2.1. How to assemble the roof (VEX option)................................................................................
2.2 Connecting the drain pan.….........................……………………………………………...…….
2.3 Other installation advices.........................………………………………………………………..
III. WIRING INSTRUCTIONS ….....……………..…………………………………………….......…...
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3.1 General informations..............................................................................................................
3.1.1 General schematic of the Maxi units……………………………......………..………….....
3.1.2 Schematic of the T° sensors positioning in the Maxi unit...............................................
3.1.3 Label placed in the box 3 cover (i/o REC print board)............……………..………….....
3.2 Power supply to the fans and the control devices…............................……………..…………
3.3 Power supply for the electric antifreeze coil KWin (option)................................…...………..
3.4 Power supply and connections for the electrical post heating coil KWout (option)...............
3.4.1 Power supply…...............................……………………………………………..………….
3.4.2 Coil Control………………………………………………..…..................................……….
3.5 Connecting the post heating water coil (option)..........………..........................................…..
3.5.1 Power supply…………………………………………..............................……..………..….
3.5.2 Water connection (to be made by the installer)………...............……………..……….….
3.6 Starting the TAC3 Maxi control..............................................................................................
3.6.1 General schematic of the Maxi control device……………………….........………….....….
3.6.2 Connecting the remote control to the i/o REC module…..............…………………...……
3.6.2.1 Open the RC casing......................................................................................................
3.6.2.2 Wiring diagram to connect the RC module to the i/o REC module...............................
3.6.3 Selecting the Master…......................................................................……………...……...
IV. SYSTEM CONFIGURATION INSTRUCTIONS...................................…………...……............
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4.1 Working modes…......................................……………………………………..….……............
4.1.1 CA Mode: setup, operating instructions and wiring diagrams.........................................
4.1.1.1 Setup CA mode............................................................................................................
4.1.1.2 Operating CA mode with RC module master...............................................................
4.1.1.3 Operating CA mode with i/o module master................................................................
4.1.2 LS Mode : setup, operating instructions and wiring diagrams.........................................
4.1.2.1 Setup LS mode............................................................................................................
4.1.2.2 Operating LS mode with RC module master................................................................
4.1.2.3 Operating LS mode with i/o module master.................................................................
4.1.3 CPs Mode : setup, operating instructions and wiring diagrams......................................
4.1.3.1 Setup CPs mode..........................................................................................................
4.1.3.2 Operating CPs mode with RC master..........................................................................
4.1.3.3 Operating CPs with i/o module master.........................................................................
4.2 Bypass control with Maxi’s TAC3 Maxi control................................…………...……………...
4.3 Standard built in antifreeze protection of the heat exchanger................................……….....
4.4 Antifreeze the heat exchanger with pre-heating KWin (option)..............................................
4.4.1 Setup of the KWin pre-heating coil control..........................................................…….....
4.4.2 Modifying the assigned floor T°…..............................................…....………….………...
4.4.3 Control features of the TAC3 Maxi……...........................................................................
4.5 KWout post heating electrical coil control (option)…........................................................…..
4.5.1 Setup of the KWout post-heating coil control ….....…...............................................…..
4.5.2 Modification of the assigned floor T° (caution: maximum 50°C)…........…………………
4.5.3 Control features of the TAC3 Maxi.…….................................………………….………...
4.6 NV post heating of the supply air with a water coil (option)................................................…
4.7 Working with CT option …………………………….......................................………………….
4.8 Display on the RC.......………………………...............................................................……….
4.9 Fan failure alarm…............................................…………………………….……..…………….
4.10 Actual airflow / pressure output signals.….…………...........................................…………..
4.11 Advanced setup…………………………………....................................................……..……
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Fortsetzung Folgeseite
4.12 Alarms………………….……………………………………..............…………………...………
4.12.1 Alarm types……………..……………………………………..........................…...…….....
4.12.2 Alarm table......……………...….................….………………………………….……….....
4.12.3 Wiring diagram of relays when alarms..........................................................................
4.13 Fire alarm………………………………..................................……………………….…………
4.13.1 Configuration……..……………………….....................................………………...……..
4.13.2 Wiring diagram of fire alarm.………………...........................………………….………...
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Anhänge
Appendix 1:
ADVANCED SETUP......................................................................................................................
Appendix 2:
TECHNICAL INFORMATION - RC TAC3 - ALARMS............................................................…..
Appendix 3:
TECHNICAL DOCUMENTATION VISUALIZATION.....................................................................
Appendix 4:
INSTALLATION INSTRUCTIONS NV POSTHEATING COIL......................................................
Appendix 5:
INSTALLATION CONTROL DATASHEET...................................................................................
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We reserve the right to make changes
favouring technical progress.
801 DC - 4001 DC
0. INTRODUCTION
PLEASE READ THIS MANUAL CAREFULLY BEFORE START-UP!
This manual contains all the required instructions for an optimal assembly of a unit and the heat
recovery device (WRG) of the type . It also serves as a guide for maintenance and customer service
work.
Using this manual, you can learn how to easily use your heat recovery device in as optimal a way as
possible. In case you have to do any work inside the device we recommend taking the advice of the
installation company.
The device is subjected to continuous improvement and further development. It is possible, therefore,
that your device differs slightly from the description.
We hope you enjoy using your .
PLEASE NOTE: Great care has been taken in preparing this manual. However, you are not entitled to
any rights through its use. We reserve the right to modify the content of this manual, partially or
completely, at any time.
I. GENERAL MAINTENANCE INSTRUCTIONS
CONSTRUCTION characteristics
The structure is made out of omega shaped anodized aluminum profiles connected by reinforced polypropylene
auto-extinguishable (M1) corner pieces. The panels are 30mm double skin steel plates insulated. The outside
panels are 0,8mm thick pre-painted (5µm primer + 20µm polyester)-gray RAL 9002 color, covered with a plastic
protection (to be removed after installation). The inside panel is 0,8mm galvanized steel. This combination allows
the exposure of the panels to outdoors conditions, and forms a rigid structure. Thermal insulation is carried out by
EPS panels (density 30 g/l), self-extinguishing (M1 class), in conformity with the European environment standards,
inserted between layers. The is mounted on a steel frame and is mono-structured. All the access doors to the
ventilators and filters are equipped with handles.
Air tightness:
Internal: Class 1 as per EN 13141-7.
External: Class 2 as per EN 13141-7.
TAC technology fans
The series is equipped with TAC technology centrifugal ventilators. The regulation TAC3 is specifically developed
to take advantage of this technology. Verify that the supplied voltage corresponds to the specification of the
ventilators and that the connection is made according to the supplied wiring instructions.
Attention! : The starting up / stop of the unit must be activated by using the softstop function on K1/K2/K3 or via the
RC, and not by shutting off the power supply.
Always check the following electrical specifications:
Power supply voltage: 230VAC (210V<V<250V).
Power supply frequency: 50/60 Hz.
Grounding the unit is compulsory
The motor is self-protected against overloading. It is thus NOT necessary to install an electrical overload protection
device. See section 3.2 for detailed wiring instructions.
© Paul Wärmerückgewinnung GmbH • August-Horch-Straße 7 • 08141 Reinsdorf • Deutschland
Tel: +49(0)375-303505-0 • Fax: +49(0)375-303505-55 • E-Mail: [email protected] • Internet: www.paul-lueftung.de
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Before starting the unit
- If the fan wheel is turning properly, without resistance?
- Verify if the installation and the connections are made according to the applicable European standards.
- Are the precautionary measures to avoid an accident taken? (Wiring, rotating parts, security measures,)
Operating conditions
The temperature over the fan motor cannot be lower than -10°C, or superior to 55°C. The unit is not designed to
operate in an aggressive or an explosive environment. It is strongly not advised to stop and start the unit more often
than every 5 minutes.
About the counterflow AIR/AIR heat exchanger
When properly maintained the heat exchanger will obtain efficiencies superior to 90% according to working
conditions. This may result in the production of condensates which will be collected by the drain pan. In severely
cold conditions, condensation can also cause a production of frost on the heat exchanger.

Before starting the unit, check that the drain pan is properly connected with the siphon delivered, and that the
connections to the drainage are airtight.

The slope of the drainage must be of at least of 1cm/m.

The siphon must be accessible

In the outdoor version of the a siphon with membrane is supplied

If a risk of frosting of the drainage is existent, install a wire resistance (not supplied).
Protect the heat exchanger by regularly cleaning or replacing the filters.
To protect from frosting, the TAC3 control is as standard delivered with an inbuilt heat exchanger antifreeze system
(by unbalancing the in and out airflows). There is also the KWin pre-heater option available to accomplish this if
deemed necessary.
The units are specified not to exceed a frontal air speed on the heat exchanger of 2,2m/s.
Fan maintenance
Before proceeding to maintenance, first stop the fans using the softstop feature and the only then proceed to the
shutdown of the power supply. Verify the state of the fans. If they need to be cleaned use dry or moist cloths with a
degreaser. Be careful not to alter the balancing of the fans when doing this. Do not remove the clips of balancing).
Filters
units are delivered with G4 filters for the air ‘out’ flow and F7 filters for the air ‘in’ flow. Filters are the protectors of
the heat exchanger, but also of the quality of the air you breathe. Check regularly (once a month) the state of the
filters. Vacuum the filters if necessary, and replace them when they are too dirty. Clogged filters can create the
following failures:
- Insufficient ventilation
- Excessive increase of the rotation speed of the fan creating excessive noise and power consumption
- A damaged filter allows 'dirty' air to enter the heat exchanger which will eventually clog the heat exchanger
Filter identification for replacement:
Unit type
Filter(s) air “out”
801
1 x G4 (470x287x50) – cid 125054
1201
1 x G4 (830x287x50) – cid 125055
2001
2 x G4 (503x370x50) – cid 125063
3001
1 x G4 (503x370x50) – cid 125063
2 x G4 (436x370x50) – cid 125065
4001
4 x G4 (436x370x50) – cid 125065
Filter(s) air “in”
1 x F7 (470x287x50) – cid 125056
1 x F7 (830x287x50) – cid 125057
2 x F7 (503x370x50) – cid 125062
1 x F7 (503x370x50) – cid 125062
2 x F7 (436x370x50) – cid 125064
4 x F7 (436x370x50) – cid 125064
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Installation control datasheet (see appendix)
When the installation is completed and running, we strongly advise that the installer fills in the installation datasheet
recapitulating all the data useful for maintenance of the installation. Please keep a copy of this datasheet closely as
it may come handy for many reasons:
•
make a clear communication in case of discussion with the manufacturer
•
information if you need to change parameters when necessary,
•
this document can become an important factor in case of guarantee issues.
Guarantee
The guarantee of the manufacturer begins at the date of invoicing of PLC to the installer. The guarantee is of 2
years, except on the mobile parts where it is of 1 year.
The guarantee is limited to the replacement of the defective parts, and does not include labor and traveling
expenses. The guarantee becomes void if:
•
The installation is not accomplished according to the prescriptions described in this above.
•
Repairs were carried out by unqualified staff.
•
The startup control datasheet (see appendix) is not filled in properly and not made available when claiming
Conformity
CE, under formal condition that the final product integration is made in conformity with the applicable standards.
II. INSTALLATION INSTRUCTIONS
2.1. How to assemble the roof (VEX option)
The roof (VEX) option is delivered unassembled for transportation reasons. Please follow these
instructions to assemble the different parts:
a) Remove the plastic film from the top part of the unit. Make a silicone seal (not supplied) between the panels and
between the aluminum profiles on the top part of the unit, as shown on the picture a)
b) Place the different elements of the roof on top of the unit, over the silicone seals. Make sure you leave an
adequate distance on each side of the unit so as to cover the whole unit properly. (Suggested distance: +/-50mm on
the sides, and +/-100mm on the front and back of the ).
a)
b)
c) Use the supplied M8 screws to screw the roof onto the unit. The screws must be screwed into the aluminum
profile and properly aligned. Use a pen to point the location of the screw. Mount the plastic caps supplied over the
screw heads.
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d) Insert silicone inside the U-clip used to join the different roof parts and place the clip over the roof sections as
shown on picture d1 and d2.
c)
d1)
e) Make a silicone seal between the aluminum profile and the roof all around the unit, as shown in picture e).
d2)
e)
2.2 Connecting the drain pan
• If the unit is installed indoors:
Before starting, control the following points:
- if the drain pan is watertight;
- the connection between the drain pan and the evacuation pipe is airtight;
- the height of the siphon is at least of 120 mm;
- the pressure difference between outside and inside the unit cannot
exceed 350 Pa;
indoor siphon
- check for the presence of a ventilation downstream of the siphon;
- the slope of the evacuation pipes is at least 1 cm/m;
- the siphon is accessible to allow cleaning
• If the is installed outdoors:
The siphon delivered with for outdoor application is a special siphon with
a membrane. It is thus not necessary to fit it to a drainage pipe as the
water can directly drop on the ground. The membrane integrated into this
type of siphon creates the air tightness.
outdoor siphon
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2.3 Other installation advices
z Make sure the unit is installed on a flat surface
z Leave sufficient access to the unit. Make sure it is possible to access to all the components for maintenance:
fans, controls and filters. We advise at least 50 cm on each sides of the unit,
z Special care has been taken to deliver an airtight unit. Make sure the ductwork is also very airtight, specially at
the connections with the unit on the supply air side.
z If the unit is installed outdoors, take the dominating winds into account when orientating the unit. Try to protect
the air inlet as much as possible from storm winds and rain.
III. WIRING INSTRUCTIONS
3.1 General informations
3.1.1 General schematic of the units
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1. Main switch for power supply to fans and control
2. Main switch for power supply to pre (Kwin) and/or post (Kwout) heating coils
3. Controls for KWin and/or KWout (options) and i/o REC circuit (i/o module)
4. Central wiring station CBr4 TAC3 REC (factory pre-wired)
5. By-pass 100%
6. Drain pan and connection pipe
7. Supply Fan
8. Exhaust fan
9. Air/Air heat exchanger
10. Remote Control (RC)
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All electrical connections made the installer are in 1/2/3/10.
3.1.2 Schematic of the T° sensors positioning in the unit
3.1.3 Label placed in the box 3 cover (i/o REC print board)
3.2 Power supply to the fans and the control devices
All the internal cables (fans, controls, sensors, …) to the main switch are factory pre-wired. All the power supply
wiring that remains is the main power supply to the main switch(es).
Wiring specifications:
Unit type
800
1200
2000
3000
4000
Supply Voltage
(1)
1 x 230V
1 x 230V
1 x 230V
1 x 230V
3 x 400V + N
mum amps
4,1 A
5,2 A
10,6 A
13,2 A
10,6 A (3)
Protection type (2)
D – 10.000A – AC3
D – 10.000A – AC3
D – 10.000A – AC3
D – 10.000A – AC3
D – 10.000A – AC3
Protection caliber
8A
8A
16 A
20 A
16 A (4)
(1) Grounding is compulsory
(2) D type “slow” reaction curves - shutoff power 10.000A - AC3.
(3) Max current per phase. (4) 3x400V + N.
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3.3 Power supply for the electric antifreeze coil KWin (option)
All the internal cables of the KWin coil to the main switch are factory wired. All that needs to be wired is the main
power supply to the main switch.
Unit type
800
1200
2000
3000
4000
Supply voltage
(1)
3 x 400V + N
3 x 400V + N
3 x 400V + N
3 x 400V + N
3 x 400V + N
KWin heating
capacity
3 kW
4,5 kW
6 kW
9 kW
12 kW
mum amps
4,3 A
6,5 A
8,7 A
13,0 A
17,3 A
3.4 Power supply and connections for the electrical post heating coil KWout (option)
3.4.1 Power supply
All the internal cables of the KWout coil to the main switch are factory wired. All that needs to be wired is the main
power supply to the main switch.
Unit type
800
1200
2000
3000
4000
Supply voltage
(1)
3 x 400V + N
3 x 400V + N
3 x 400V + N
3 x 400V + N
3 x 400V + N
KWoutn heating
capacity
3 kW
4,5 kW
6 kW
9 kW
12 kW
mum amps
4,3 A
6,5 A
8,7 A
13,0 A
17,3 A
3.4.2 Coil Control
•
A supplied temperature sensor and cable (5m) has to be installed in the supply duct and connected to the
KWout control. If the unit is installed outside the sensor cable must be protected. Connect the 2 wires to
terminals 10 and 12 of the KWout control (see schematic)
Supply
T° sensor
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It is possible to show the actual supply T° on the display of the RC. To do it, it is necessary to connect a second
temperature sensor (see schematic). If there is no sensor connected there will be no display of the value on the
RC.
i/o REC circuit
T° sensor
•
It is possible to overrule the heater’s control system using the following connection, allowing shutting down the
post heating using an external contact.
i/o REC circuit
Post-heating ON/OFF
Contact closed = post heating OFF
Contact open = post heating ON
3.5 Connecting the post heating water coil (option)
The post-heating water coil is delivered with a motorized 3-way valve.
3.5.1 Power supply
•
•
The connection of the power supply to the valve motor is carried out in the factory as well as the connection to
the control device,
The supplied temperature sensor must be mounted in the supply duct, and must be wired as shown:
i/o REC circuit
T° sensor
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The control allows to automatically starting the circulator of the hot water circuit. To do so wire in series
(electrical) the OR3 relay contact with the water pump command as following :
i/o REC circuit
Water pump
•
OFF
ON
It is possible to overrule the heater’s control system using the following connection, allowing shutting down the
post heating using an external contact.
i/o REC circuit
Post-heating ON/OFF
Contact closed = post heating OFF
Contact closed = post heating ON
3.5.2 Water connection (to be made by the installer)
•
Connection schematic:
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•
®
These are the specifications for the water coil connection:
Unit type
800
1200
2000
3000
4000
Diameter
on the coil
Diameter on
the valve
1/2’’
1/2’’
1/2’’
1/2’’
1/2’’
3/4’’
3/4’’
3/4’’
3/4’’
3/4’’
Coil Capacity
(*)
4,5 kW
8,0 kW
13,2 kW
19,4 kW
27,8 kW
Water flow (*)
199 l/h
353 l/h
585 l/h
857 l/h
1200 l/h
Pressure loss (*)
1,4 kPa
6,5 kPa
20,4 kPa
11,1 kPa
26,8 kPa
(*) Nominal values for following selection conditions: air in T°: 18°C, water in/out T: 90/70°C. For other conditions refer
to the lobal selection software or provided data sheet for the project.
3.6 Starting the TAC3 control
The TAC3 control is delivered assembled and factory wired. Only the RC (Remote Control) must be installed where
chosen and wired by a qualified installer.
The TAC3 control consists of 3 parts (see 3.1):
•
A CBr4 TAC3 REC circuit which is factory assembled wired and tested in the unit. No connections are to be
made by the installer to this part.
•
An i/o REC circuit which is factory assembled wired and tested. It is located on the outside of the front panel of
the unit. All the installer’s wirings and settings are made on this component.
•
A remote control RC TAC3 REC which must be properly wired by the installer to the i/o REC circuit. This
component allows full configuration of the unit, display of all the parameters as well as the control of the fans.
3.6.1 General schematic of the control device
Located outside the unit
3.6.2 Connecting the remote control to the i/o REC module
The connection between the various modules is made by a communication bus. Once you know where to install the
RC follow these steps to connect the RC to the i/o module:
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3.6.2.1 Open the RC casing
Using a small screwdriver unlock the 4 pins
Remove the cover
2 pins on each side
Points for fixation of the casing (spacing = 88mm)
RC dimensions = 122 x 66mm
RC wiring terminals
Caution:
•
The RC is the module that saves the setup data. If you need to replace the RC you need to re-configure the
setup. It is therefore important to fill in the setup datasheet after 1rst installation (see appendix) to remember the
setup parameters.
•
For the same reason, it is not possible to operate the without RC.
•
The RC box is class IP20 and cannot be installed outdoors as such. If you wish to install it outdoors (for instance
on the unit) you need to fasten inside a proper watertight box.
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3.6.2.2 Wiring diagram to connect the RC module to the i/o REC module
Cable specifications
•
Recommended cable: category 5 shielded twisted pair (FTP) cable with a section of 0,26 … 0,50 mm².
Use 1 pair to connect GND and +12V and 1 pair to connect B- and A+.
•
mum cable length: 1000 m.
•
Keep this communication cable at distance from power cables.
•
If the unit is installed in a location with high electro-mechanical interference levels: the shielding must be
connected on one side to the shielding of the cable connecting the CBr to the i/o REC.
•
If the unit is installed outside, select a suitable cable for outdoor application (UV light, …).
3.6.3 Selecting the Master
« Selecting the master » means the determination of which module of the i/o and the RC will “control” the fans,
“controlling” the fans means:
•
If CA mode is chosen (see 4.1.1), to be the master means to control the start/stop of the fans as well as to
select the airflow
•
If LS or CPs mode (see 4.1.2 and 4.1.3), to be the master means to control the start/stop of the fans as
well as to activate/deactivate a different assignment (assignment multiplier).
RC is master
i/o module is master
i/o REC circuit
i/o REC circuit
Control
Visualization
Control
Visualization
i/o module is « master »: contact between terminals IN3 and +12Vdc of i/o module is closed.
•
The i/o module allows control of the fans through its inputs.
•
The RC allows to configure and to de visualize all the parameters on the display and with the LEDs,
RC module is « master » contact between terminals IN3 and +12Vdc of i/o module is open.
•
The i/o module is reduced to being an only passive link between the RC and the fans.
•
The RC allows to configure and to visualize all the parameters on the display and with the LEDs
•
The RC controls the fans with the OFF / I / II / III keys
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Wiring diagram
Contact closed = i/o module is master,
Contact open = RC module master
Caution: Use gold plated contact only.
The use of this contact enables to switch automatically from RC master to i/o master.
Using this you can for instance :
• Work in RC master and switch in position i/o master to stop automatically the fans (attention, in this case the
inputs K1/K2/K3 on the i/o have to be disconnected from the +12V).
• Work in RC master and switch in position i/o master to activate automatically a sleep value (attention K1/K2/K3
on the i/o have to be properly connected to activate this value).
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IV. SYSTEM CONFIGURATION INSTRUCTIONS
4.1 Working modes
The various working modes give the user the choice on how the airflow must be modulated according to your
application.
In all the working modes the supply fan will operate according to the assigned mode and parameters. The airflow
of the exhaust fan will then equal to a percentage of the actual airflow of the supply fan (noted %EXT / PUL for
ratio between exhaust and supply airflows).
The control allows configuration of one of the following 4 modes, briefly described hereunder. For more information
consult the TAC technology section on our website.
•
CA MODE:
3 constant airflow assignments for the supply fan are determined by the user (m³h K1, m³h K2 et m³h K3).
•
LS MODE:
The assigned supply airflow is a function of a 0-10V linear signal. The user
defines the link with 4 parameters: Vmin, Vmax, m³h≡Vmin et m³h≡Vmax,
applied to the following diagram:
With m³h≡Vmin < or > m³h≡Vmax (positive or negative link)
Using the advanced setup, it is possible to stop the fans once the input signal
value has reached a certain upper and/or lower limit.
•
CPs MODE:
This mode can either be applied on the supply or the exhaust.
CPs on supply: the airflow of the supply fan(s) is modulated so as to maintain constant a certain pressure value
measured by a pressure sensor properly located in the ducting.
CPs on exhaust: the airflow of the exhaust fan(s) is modulated so as to maintain constant a certain pressure value
measured by a pressure sensor properly located in the ducting.
•
MODE OFF:
Is not a real working mode, it is a way to temporarily shortcut the i/o master setup. It allows, if working in i/o master,
to stop the fans with the RC. But then to restart the fans it is required to choose one of the other 3 working modes.
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4.1.1 CA Mode: setup, operating instructions and wiring diagrams
4.1.1.1 Setup CA mode
The setup is made by means of the LCD screen and the 4 knobs SETUP, ↑, ↓ and ENTER of the RC.
To start the setup:
- Enter in the setup mode using the left knob on the diagram so that the SETUP LED ignites
- Press then the SETUP knob until the text ‘SETUP’ appears on the screen.
The idea is to select your choice with the ↑↓ knobs and then to confirm your choice by
pressing ‘ENTER’. The numbers are introduced digit by digit.
1
2
LANGUAGE
Choose your language (English, French, Dutch, German)
SUPPLY?
If a post heating water coil (option) is mounted in the unit, introduce the assignment T°
for the supply airflow. See details in §4.6.
xx°C (NV)
3
WORKING
MODE
4
m³h K1?
Type in supply airflow 1 (will be activated if contact between K1 and +12V of i/o module
closed or if position I on RC is selected)
5
m³h K2?
closed or if position II on RC is selected)
6
m³h K3?
closed or if position III on RC is selected)
7
%EXH/SUP
Type in ratio between exhaust (EXT) and supply (PUL) airflow to create over, under or
even pressure.
8
PRESSURE
ALARM?
The pressure alarm is optional. If you do not wish it select N and skip to step 14.
Otherwise select Y. For more details see §4.12.
9
∆P SUP
Type in the pressure increment for the supply airflow.
10
∆P EXH
Type in the pressure increment for the exhaust airflow.
11
INIT Pa
REF?
Do you wish to (re-)configure the reference pressure for the supply and the exhaust
airflows? Y or N. (this is optional if it has been done previously)
12
m³h INIT
If Y is selected, enter nominal airflow at which you wish to initialize the reference
pressure. (same airflow for exhaust and supply air)
13
Pa REF
INIT
xxxx m³h
Select CA from CA, LS, CPs
Initializing the reference pressure…
After +/-1 minute, the system will memorize the calculated pressure value of the fan as
the reference pressure. While initializing the airflow and pressure on F1 is displayed.
xxxx Pa
14
15
ALARM
Possibility to reset the alarms. Y or N?
RESET?
END
SETUP
End
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4.1.1.2 Operating CA mode with RC module master
•
One of the 3 assignment constant airflows (m³h K1, m³h K2 et m³h K3) is selected using the I / II / III knobs of
the RC. The selection made is highlighted by the corresponding LED on the RC. The exhaust airflow is equal to
(%EXT/PUL) of the supply airflow.
•
The OFF touch allows stopping the fans.
•
It is also possible to start/stop the fans with an external contact connected to the i/o module:
Caution: in this case terminals K1/K2/K3 of the i/o module CANNOT be connected.
Closed = fans OFF
Open = fans ON
Start / stop
4.1.1.3 Operating CA mode with i/o module master
One of the 3 assignment constant airflows (m³h K1, m³h K2 et m³h K3) is selected using the K1/K2/K3 terminals on
the i/o module. The selection made is highlighted by the corresponding LED on the RC. The exhaust airflow is equal
to (%EXT/PUL) of the supply airflow.
Wiring diagrams for CA i/o module master
i/o REC circuit
a) Wiring 1 module to 3 external contacts
i/o REC circuit
3
K1 closed Ö airflow m h K1
3
3
K1/K2/K3 open Ö softstop
Caution K1/K2/K3: Use gold plated contacts only.
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b) Wiring 1 module to an COM4 (PLC 4 positions switch)
COM4
c) Wiring several i/o modules to 3 external contacts
3
3
3
K1/K2/K3 open Ö softstop
Caution K1/K2/K3: Use gold plated contacts only.
d) Wiring several i/o modules to 1 COM4
COM4
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4.1.2 LS Mode : setup, operating instructions and wiring diagrams
4.1.2.1 Setup LS mode
The setup is made by means of the LCD screen and the 4 knobs SETUP, ↑, ↓ and ENTER of the RC.
To start the setup:
The idea is to select your choice with the ↑ ↓ knobs and then to confirm your choice by
1
2
LANGUAGE
SUPPLY?
00°C (NV)
3
WORKING
MODE
Select LS from CA, LS, CPs
4
V min?
Select minimum voltage value
5
V max?
Select mum voltage value
6
m³/h≡Vmin
Select constant airflow value for minimum voltage Vmin
7
m³/h≡Vmax
Select constant airflow value for mum voltage Vmax
8
% on K3?
Select constant airflow multiplier when contact between terminals +12V and K3 is
closed, or if position III is activated on the RC.
9
%EXH/SUP
Type in ratio between exhaust (EXT) and supply (PUL) airflow to create over, under or
even pressure.
10
PRESSURE
ALARM?
The pressure alarm is optional. If you do not wish it select N and skip to step 16.
Otherwise select Y. For more details see §4.12.
11
∆P SUP
Type in the pressure increment for the supply airflow.
12
∆P EXH
Type in the pressure increment for the exhaust airflow.
13
INIT Pa
REF?
Do you wish to (re-)configure the reference pressure for the supply and the exhaust
airflows ? Y or N. (this is optional if it has been done previously)
14
m³h INIT
If Y is selected, enter nominal airflow at which you wish to initialize the reference
pressure. (same airflow for exhaust and supply air)
Pa REF
Initializing the reference pressure…
INIT
After +/-1 minute, the system will memorize the calculated pressure value of the fan as
the reference pressure. While initializing the airflow and pressure on F1 is displayed.
15
xxxx m³h
xxxx Pa
16
17
ALARM
Possibility to reset of the alarms. Y or N ?
RESET?
END SETUP
End
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4.1.2.2 Operating LS mode with RC module master
•
Starting/stopping the fan is carried out with knobs I/III and OFF.
•
The assignment value for the supply constant airflow is a function of a 0-10V signal connected to terminals K2
and GND of the i/o module. The link between voltage and airflow is linear. The exhaust constant airflow is equal
to %EXT/PUL of the supply airflow. (except if 2 separate 0-10V signals are used to determine exhaust and
supply constant airflows, see advanced setup).
•
By pressing knob III of the RC you activate the pre-set multiplier (% on K3).
•
It is possible to start/stop the fans with an external contact connected to the i/o module (see diagram
hereunder). Caution: terminals K1/K2/K3 of the i/o module CANNOT be connected.
i/o REC circuit
Start / stop
Closed = fans OFF
Open = fans ON
Caution: use gold plated contacts only
a) Wiring diagram with 1 i/o module connected to 1 sensor
i/o REC circuit
(*)
b) Wiring diagram with several i/o modules connected in parallel to 1 sensor
+
-
0-10 Vdc (*)
(*) K2Ö 0-10V signal, mum impedance allowed: 1500 Ω
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4.1.2.3 Operating LS mode with i/o module master
The assignment value for the supply constant airflow is a function of a 0-10V signal connected to terminals K2 and
GND of the i/o module. The link between voltage and airflow is linear. The exhaust constant airflow is equal to
%EXT/PUL of the supply airflow. (except if 2 separate 0-10V signals are used to determine exhaust and supply
constant airflows, see advanced setup).
Starting/stopping the fans is carried out with entry K1 on the i/o module. The K3 entry of the i/o module can be used
to activate the pre-set multiplier (% on K3).
Wiring diagrams
To locate i/o module see section 3.1
a) Wiring diagram with 1 i/o module
(*)
b) Wiring diagram with several i/o modules in parallel
+
0-10 Vdc (*)
-
(*)
K1 closed Ö soft start
K1 open Ö softstop
K2
Ö 0-10V signal, mum impedance allowed: 1500 Ω
K1+K3 closed Ö % on K3 activated
K3 open
Ö % on K3 inactive
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4.1.3 CPs Mode : setup, operating instructions and wiring diagrams
4.1.3.1 Setup CPs mode
The setup is made by means of the LCD screen and the 4 knobs SETUP, ↑, ↓ and ENTER of
the RC. To start the setup:
The idea is to select your choice with the ↑ ↓ knobs and then to confirm your choice by
1
2
3
4
LANGUAGE
SUPPLY?
xx°C (NV)
WORKING
MODE
CPs on
SUPPLY
5
% on K3?
6
%EXH/SUP
Select CPs from CA, LS, CPs
Select if you wish the constant pressure to operate on the exhaust or on the supply
airflow.
Input of multiplier on the CPs assignment when contact between terminals +12V and
K3 in the i/o module is closed or if knob III is activated on the RC
Type in ratio between exhaust (EXH) and supply (SUP) airflow to create over, under or
even pressure.
New initialization of the CPs constant pressure assignment ? Y or N
INIT CPs
REF?
INIT via
If Y is selected in 7 then select if you want to initialize the CPs reference automatically
8
AIRFLOW?
via the airflow or manually via the pressure value.
If INIT CPs via AIRFLOW (default): the unit automatically determines the reference pressure
9
m³h INIT
Enter nominal airflow to determine assignment pressure CPs.
Initializing of CPs busy.
CPs INIT
After 1 minute the system will memorize the pressure measured by the sensor
xx,x V
10
corresponding to the nominal airflow.
Display of the actual airflow of the supply or exhaust fan (F1 or F3) and of the actual
xxxx m³h
sensor value.
xxxx Pa
ALARM
Possibility to reset the alarms Y or N
11
RESET?
END
The configuration of the system is finished.
12
SETUP
If INIT CPs via PRESSURE (see advanced setup): the user determines the reference pressure
CPs REF?
Enter the assignment pressure value.
9
xx,x V
ALARM
Possibility to reset the alarms Y or N
10
RESET?
END
The configuration of the system is finished
11
SETUP
7
Note that the CPs mode can be either active on the supply or the exhaust side of the unit (see 4, in table above):
CPs on SUPPLY air : The airflow delivered by the supply fans is automatically modulated to obtain a constant
pressure as measured by the pressure sensor in the duct. The exhaust airflow is equals to %EXT/PUL of the supply
airflow.
CPs on EXHAUST air : The airflow delivered by the exhaust fans is automatically modulated to obtain a constant
pressure as measured by the pressure sensor in the duct. The supply airflow is equals to 1/(%EXT/PUL) of the
exhaust airflow.
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4.1.3.2 Operating CPs mode with RC master
•
The start/stop of the fans is controlled by knob I and OFF.
•
The pressure sensor is connected between K2 and GND of the i/o module
•
The ‘III’ knob on the RC allows activating the airflow ‘multiplier % on K3’ on the airflow assignment.
•
It is possible to start/stop the fans with an external contact connected to i/o module. In this case, terminals
K1/K3 of the i/o module must not be connected !
i/o REC circuit
Start / stop
Closed = fans OFF
Open = fans ON
Caution: use gold plated
a) Wiring of 1 i/o module to 1 sensor
i/o REC circuit
(*)
b) Wiring in parallel of several i/o modules to 1 sensor
+
-
0-10 Vdc (*)
(*) K2 Ö 0-10V signal, mum impedance allowed: 1500 Ω
4.1.3.3 Operating CPs with i/o module master
•
The start/stop of the fans is controlled by entry K1 of the i/o module.
•
The pressure sensor is connected between K2 and GND of the i/o module
•
K3 on the i/o module can be used to activate the multiplier ‘% on K3’ on the airflow assignment
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a) Wiring 1 i/o module to 1 sensor
(*)
b) Wiring several i/o modules in parallel to 1 sensor
+
0-10 Vdc
(*)
K1 closed Ö soft start
K1 open Ö softstop
K2
Ö 0-10V signal, mum impedance allowed: 1500 Ω
K1+K3 closed Ö % on K3 activated
K3 open
Ö % on K3 inactive
4.2 Bypass control with ’s TAC3 control
According to inside and outside temperatures, the control TAC3 will monitor the opening/closing of the 100% bypass damper. The by-pass is delivered completely wired and motorized from factory. No wiring or installation is
required by the installer.
The O.R.4 relay (SAT3 option) of the i/o REC print board indicates the opening / closing of the bypass.
Operating description :
•
Opening of 100% by-pass if all following conditions are met:
-
Outside T° (sensor T1) < inside T° (sensor T2) – 1°C.
-
Outside T° (sensor T1) > 15°C
-
Inside T° (sensor T2) > 22°C.
•
Closing of 100% by-pass if one of the following conditions is met:
-
Outside T° (sensor T1) > inside T° (sensor T2).
-
Outside T° (sensor T1) < 14°C
-
Inside T° (sensor T2) < 20°C.
All these temperature SET values can be modified using ADVANCED SETUP.
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4.3 Standard built in antifreeze protection of the heat exchanger
This functionality is built in the standard control and must not be configured by the installer. It is automatically de-activated
if an optional KWin pre-heater (see §4.4) is installed in the unit.
Description:
In order to avoid the risk of frosting the heat exchanger, the supply airflow is linked to the temperature value of the exhaust
airflow measured after the heat exchanger (sensor T3). The exhaust airflow remains unchanged.
•
T°(S3) > +5°C: the assigned airflow is as defined by SETUP
•
+1°C < T°(T3) < +5°C : the airflow assigned by SETUP is automatically modified as follows :
-
If CA or LS working mode : the supply airflow will progressively drop down to 33% (AFlow) of the assigned airflow
(AFn)
-
If CPs mode, the assigned pressure will drop to 50% (AFlow) of the assigned pressure (AFn)
-
In these conditions LED AF is ON.
•
T°(T3) < +1°C : the supply airflow is stopped for as long as T°(T3) < +1°C. In these conditions LED AF is blinking.
All these temperature SET values can be modified using ADVANCED SETUP.
Antifreeze diagram :
S3
(°C)
5°C
LED AF ON
1°C
LED AF indicating
AF low
AF n
4.4 Antifreeze the heat exchanger with pre-heating KWin (option)
The series features a fully automated pre-heating coil. Its capacity is modulated according to the actual heating
requirements to avoid frosting the heat exchanger. The control automatically regulates the coil’s capacity to
maintain constant an assigned exhaust airflow temperature after the heat exchanger (value same as S3).
The Kwin option is made of 3 parts:
•
A regulator provided with a display: see picture below
•
A solid state relay (SSR) to modulate the heating capacity of the coil
•
A T° sensor
The 3 elements are delivered fully wired and mounted (plug and play)
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4.4.1 Setup of the KWin pre-heating coil control
The Kwin is full pre-configured: PID parameters as well as the assignment.
If you need to modify the assignment: see 4.4.2
4.4.2 Modifying the assigned floor T°
The assignment is pre-set in factory. It’s then usually not necessary to modify it.
Caution: if you modify the KWin assignment you have also to change the parameter T° AF in the advanced setup
of the TAC3 .
•
Make sure the unit is properly connected and is power supplied.
•
Start the fans at nominal airflow (if CA or LS) or pressure (if CPs).
•
On the display, set the ‘floor T°’ not to be to be exceeded in the exhaust airflow after the heat exchanger. (the
default value is +1°C):
-Press ‘P’ on the KWin regulator until SP1 appears on the display
-Modify floor T° value using knobs ↑ and ↓
-Press ‘P’ to validate your choice.
Display of actual T° measurement
Press to increase assignment T° (press ‘P’ first)
Press to decrease assignment T° (press ‘P’ first)
Press ‘P’ to enter in the assignment configuration mode
Indicates if actual T° is lower (◄), equals (■) or higher (►) than assignment T°
LED indicating that regulator is ON and the coils are cycling to pre-heat the supply air. This means:
- the actual T° is < assigned ‘floor T°’
- AND thermal protections are not activated,
- AND the fans are running,
- AND the by-pass is closed
4.4.3 Control features of the TAC3
•
The TAC3 control only allows the heating coil to be operated if the supply fans are in working.
•
The post-ventilation feature (see advanced setup) is automatically activated: If the fans are requested to stop,
the R3 relay is opened, and therefore the power supply to the coils is also shut down. The fans continue running
for 90 seconds to insure post-ventilation of the electrical coils.
•
If conditions make that the pre-heating coil KWin does not deliver enough capacity to reach the ‘floor T°’
assignment, and therefore not insuring the anti-frost duty, the control will modulate the in and out airflows as
follows:
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4.4.3.1 If T° < -1°C and T° < (floor T° - 1,5°C), for more than 5 minutes:
If CA and LS mode: reduction of in and outgoing airflows to 66% of the assigned airflows.
If CPs Mode: reduction to 75% of the assigned pressure.
This setup is maintained during 15 minutes, after which the 100% airflow/pressure assignment is reestablished.
Actions on RC
LED
Display text
ALARM
AF T°
ALARM
REDUCED
AIRFLOW
RED
LED Pa
LED
ALARM
/
ON
Actions on i/o REC circuit
Relay AL1
Relay R2
on SAT3
(O.R.1)
/
/
Action on fans
LED AF
ON
Assignment
reduction
4.4.3.2 If T° < -5°C during 5 minutes the unit is stopped:
Actions on RC
LED
Display text
ALARM
AF T°
ALARM
STOP
FANS
RED
LED Pa
LED
ALARM
/
ON
Actions on i/o REC circuit
Relay AL1
Relay R2
on SAT3
(O.R.1)
Alarm
/
status
Action on fans
LED AF
Blink
Stopped
Restart is made by resetting (see 4.12)
4.5 KWout post heating electrical coil control (option)
The series features a fully automated post-heating electric coil (option). Its capacity is modulated according to the
actual heating requirements to obtain a constant supply air temperature . The control automatically regulates the
coil’s capacity to maintain constant an assigned supply airflow temperature.
The KWout is made of 4 parts:
•
A regulator provided with a display: see picture below
•
A solid state relay (SSR) to modulate the heating capacity of the coil
•
A sinker to dissipate the heat produced by the SSR
•
A T° sensor
The 4 elements are delivered fully wired and mounted (plug and play)
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4.5.1 Setup of the KWout post-heating coil control
•
Make sure the unit is properly connected and is power supplied.
•
Start the fans at nominal airflow (if CA or LS) or pressure (if CPs).
•
On the KWout regulator , set the ‘assigned air T°’, the temperature to be kept constant after the heating coil
(caution: mum 50°C)
- Press ‘P’ on the regulator until SP1 appears on the display
- Enter assignment T° value using knobs ↑ and ↓
- Press ‘P’ to validate your choice.
•
Initializing the PID parameters: this is pre-set in factory. You should then not to have to change this. If you need
to modify the PID parameters (for example if your T° is not stable due to inappropriate PID parameters)
This operation must be carried out in order to obtain a good dynamic behavior of the coil control:
- Press ‘U’ until ‘Tune’ appears on the screen
-The automatic initialization of the PID parameters starts. The red led is lit. DO NOT modify the airflow
instructions during this phase (+/- 90 seconds).
- When optimization of the PID parameters is done, the red led is off and the control directly starts to modulate
the coils capacity to reach the previously assigned air temperature.
- Once this initialization done, it is possible to modify the assignment T°.
LED blinks during initialization of PID parameters
Actual T°
Press U to Start PID parameters initialization
Increase assignment T° value (press P before)
Decrease assignment T° value (press P before)
Press P to enter assignment T° configuration
Indicates if actual T° is lower (◄), equals (■) or higher (►) than assignment T°
LED indicating that regulator is ON and the coils are cycling to pre-heat the supply air. This means:
- the actual T° is < assigned ‘floor T°’
- AND thermal protections are not activated,
- AND the fans are running,
- AND the by-pass is closed
4.5.2 Modification of the assigned floor T° (caution: mum 50°C)
To set the assignment T° to be maintained constant by the KWwout control:
- Press ‘P’ on the KWout regulator until SP1 appears on the display
- Modify assignment T° value using knobs ↑ and ↓.
- Press ‘P’ to validate your choice, and return to the actual T° display by pressing ‘P’ again
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4.5.3 Control features of the TAC3
•
The TAC3 control only allows the heating coil to be operated if the supply fans are working.
•
The post-ventilation feature (see advanced setup) is automatically activated: If the fans are requested to stop,
the R3 relay is opened, and therefore the power supply to the coils is also shut down. The fans continue running
for 90 seconds to insure post-ventilation of the electrical coils.
•
It is possible to display the Supply air T° on the screen of the RC if a T° sensor T5 is connected to the i/o
module (see 3.4.2.)
•
It is possible to stop the post-heating with an external contact connected to IN6. (see 3.4.2.)
4.6 NV post heating of the supply air with a water coil (option)
A NV post-heating water coil can be installed in the to maintain a pre-set air T°.
The actual capacity delivered is completely monitored by the control with the motorized 3-way valve (supplied, but
to be installed by the installer).
Control features of the TAC3 :
•
Monitoring the 3-way valve to keep assignment T° constant using supplied sensor T° value.
•
Engaging a relay to start a water circulator (output O.R.3 on i/o module - see 3.5.1.)
•
Antifrost protection of the water coil based on the value of T4 (T° sensor provided and pre-wired). If value T4
<1°C then the 3 way valve is opened and contact for circulator is closed (see 3.5.1.) during 15 minutes
•
Possibility to stop the post-heating with an external contact connected to terminal (IN6) on the i/o module (see
3.5.1.).
•
Assignment failure: see 4.12.
•
Sensor failure alarm : see 4.12.
4.7. Working with CT option
If a damper (CT) is mounted on the the starting of the fans is temporized by 30 seconds to assure the opening of
the damper before to start the fans.
4.8 Display on the RC
a) Standard display
By default, only airflow and fan pressure values as well as alarm status are displayed on the LCD.
b) Display all the parameters
Press on the left knob on the diagram so that the SETUP LED ignites
By pressing ↑ and ↓ it is possible to display the status of all the working parameters:
- type and built in options (CT, pre/post heating)
- working mode and set values
- airflow/pressure of each fan
- pressure alarm setup (CA/LS working mode only)
- alarm status
- status of K1/K2/K3 inputs on the i/o module
- status of IN1/IN2/IN3/IN4/IN5/IN6/IN7/IN8 inputs on the i/o module
- status of the bypass
- status of the anti-freeze protection
- T° values of sensors 1/2/3/4/5 (4 and 5 = options)
- status of the CT (option)
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4.9 Fan failure alarm
It is possible with a SAT3 mounted on the i/o module (option) to provide the fan status (control if actual delivered
airflow > 20% of airflow assignment) or if they are stopped, using the R3 relay of one of the 2 SAT3 (O.R.2). This
feature provides an increased safety with regard to the start instruction control, because there is a control on the
fact that the fan is actually running (closed loop principle)
Wiring diagram:
4.10 Actual airflow / pressure output signals
A 0-10V signal representing the actual airflow or the actual pressure delivered by one of the selected fans with a
linear relation is a standard feature. The output signals are located between terminals OUT3/OUT4 and GND on the
i/o module.
Default setup : OUT3 = airflow fan 1 (supply fan) and OUT4 = pressure fan 1 (supply fan).
Table link between 0-10V signal and actual pressure or airflow value. (Linear equation)
801
Pressure (Pa)
0V
10 V
Airflow (m3/h)
0V
10 V
1201
2001
3001
4001
0
675
0
780
0
1090
0
1060
0
1090
0
960
0
1450
0
2400
0
3600
0
2400 (*)
(*) airflow per fan. You can also take the total airflow: 10V = 4800 m³/h
Via the ‘advanced setup’ it is possible to connect any of these 2 OUT signals to the airflow or pressure value of any
fans.
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Wiring diagram of output signals:
default: OUT3 = actual airflow of fan 1 (supply)
default: OUT4 = actual pressure of fan 1 (supply)
4.11 Advanced setup
Warning: using this feature requires a good knowledge of the control system.
The advanced configuration allows modifying the parameters not present in the basic configuration:
- Stop fans is pressure alarm activated
- Fans start torque
- Fire alarm configuration
- Bypass T°
- Airflow if bypass open
- AF (anti-freeze) configuration
- NV speed (option if NV installed)
- In mode LS: stop of the fans if Vin < and/or > set value(s)
- In mode CPs:
- positive or negative logical
- reaction speed of the CPs algorithm
- OUT3/OUT4 definition
- Post-ventilation configuration
- Fan run time configuration
- Display alarms only
- Access code configuration
- Factory reset
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4.12 Alarms
4.12.1 Alarm types
Type 1: Alarm indicating a fan failure (1).
This alarm indicates a failure of fan Fx.
This problem is usually caused by the motor. If not the failure can be caused by an internal cable or a control.
See 1 in table below.
Type 2: Alarm on the pressure variation (CA and LS modes only).
This alarm indicates a pre-established pressure level has been reached on fan Fx. See 2 in table below.
Type 3: Alarm indicating a problem while initializing reference pressure for a pressure alarm (1).
3 possibilities (See 3 in table below) :
- Actual airflow < requested airflow : The requested working point is ‘too high’ (too much pressure) for the mal
available pressure at the requested airflow for this fan.
- Actual airflow > requested airflow: the nominal airflow requested to initialize the pressure alarm cannot be
reached because the lower limit of the fan’s operating zone has been reached.
- Very unstable pressure (pumping).
Paréf cannot be identified and the fans are stopped. Press ‘RESET’ using ‘SETUP’ on the RC, or with the ‘RESET’
key on the i/o module.
- If it occurs during initializing an alarm pressure 2 options: 1. No action is taken: the control will operate without
pressure alarm 2. Corrective action is taken (change the working point to one well located in the working zone of the
fan, by reducing the pressure system, modifying the nominal airflow, …) and restart the setup operation….
- If it occurs during initializing of the assignment pressure in CP mode : A corrective action must be taken (change
the working point to one well located in the working zone of the fan, by reducing the pressure system, modifying the
nominal airflow, …) and restart the setup operation….
Type 4: Alarm indicating the system cannot fulfill the assignment (1).
The assignment (keeping a certain airflow or a certain pressure constant) cannot be fulfilled because the upper or
lower limit of the fan’s working zone has been reached. See 4 in table below.
Type 5: Alarm indicating a data failure in the control circuit
Crucial data from the circuit board has been lost. Try a TOTAL RESET of the data using the advanced setup (see
website). If still not solved send the defect RC for reprogramming. See 5 in table below.
Type 6: Fire Alarm with an external contact connected to a fire detection system
See 6 in table below and paragraph 4.13.
Type 7: Alarm indicating maintenance is expected. (for configuration see “advanced setup)
SERVICE ALARM: indicates the fan operating time (in hours) has exceeded a certain limit set during the
configuration..
STOP FAN: indicates the fan operating time (in hours) has exceeded a certain limit set during the configuration.
This alarm stops the fans. See 7 in table below.
Type 8: Alarm indicating a communication breakdown between RC, i/o module and central circuit CBr4.
Verify if the wirings are correct. See 8 in table below.
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Type 9: Alarm indicating a T° sensor S1/S2/S3 failure.
One or more of the T° sensors S1/S2/S3 connected to the CBr4 module and mounted on heat exchanger is defect
or not connected. These sensors are crucial for the by-pass control and the antifrost procedure. After correction of
the failure press ‘RESET’ with SETUP of the RC or press ‘RESET’ on the i/o module. See 9 in table below.
Type 10: Alarm indicating failure on T° sensor S4 (only with NV option).
It indicates that the T° sensor S4 located on the coil and connected to the CBr4 module is defect (open or short
circuit) or not connected. This sensor is used to avoid frosting of the NV coil. In this case, as a safety measure, the
3 way valve is opened and the contact used to start the circulator is closed. After fixing the failure, press ‘RESET’
with SETUP of the RC or press RESET on the i/o module. See 10 in table below.
Type 11: Alarm indicating failure on T° sensor S5 (only with NV option).
It indicates a failure of the T° sensor located in the supply duct and connected to the i/o module (opened or short
circuit) or that it is not connected. This sensor is used to regulate the post-heating function. After fixing the failure,
press ‘RESET’ with SETUP of the RC or press RESET on the i/o module. If an electric post heater is used, S5 is
only used to display the T° and has no control function. No alarm is generated in case of failure in this case. See 11
in table below.
Type 12: Alarm indicating that the assigned T° cannot be reached (only with NV option).
If the actual T° is lower than the assigned T° for more than 15 minutes with the valve fully opened until.
Type 13 and 14: Alarm indicating antifreeze alert (only with KWin option).
In certain air T° conditions as measured on the exhaust airflow after the heat recovery, indicating that the Kwin has
reached its limit, the control can take over to guarantee the antifrost function:
•
Alarm type 13: If T° < assignment T°-1,5°C for more than 5 minutes: supply and exhaust airflow reduction of
33% if CA or LS and of 25% if CPs, for 15 minutes.
•
Alarm type 14: If T° < -5°C during 5 minutes, fans are stopped. Press ‘RESET’ with SETUP of the RC or press
RESET on the i/o module to restart the unit.
See 13 and 14 in table below.
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4.12.2 Alarm table
Actions on RC
Type
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Display (1)
Action on
fans
Actions on i/o module
LED
ALARM
LED Pa
LED
ALARM
AL1
relay
R2 relay
Of SAT3
(O.R.1)
/
LED AF
ALARM
FANx
PRESSURE
ALARM
ALARM
INIT Pa
ALARM
CA, LS or
CPs
DATA
ERROR
FIRE
ALARM
ALARM
SERVICE
Red
/
ON
/
Red
ON
Alarm
status
/
/
Stopped
Fermé
/
/ (2)
Red
/
ON
Alarm
status
/
/
/
Stopped
/
/
ON
/
/
/
Red
/
ON
Alarm
status
Alarm
status
Alarm
status
/
/
Stopped
Red
/
ON
/
/
/
/
Stopped
(3)
/
Red
/
ON
FAN STOP
SERVICE
CB COM
ERROR
ALARM T°
SENSOR
1/2/3
ALARM T°
SENSOR 4
ALARM T°
SENSOR 5
ALARM
POSTHEAT
T° TOO
LOW
AF T°
ALARM
AIRFLOW
REDUCED
AF T°
ALARM
STOP
FANS
Red
/
ON
Alarm
status
Alarm
status
Alarm
status
/
/
Stopped
Red
/
blink
/
/
Stopped
Red
/
ON
/
/
Stopped
Red
/
ON
/
/
/
/
/
/
ON
Alarm
status
Alarm
status
/
Red
/
ON
Red
/
/
/
/
Red
/
ON
/
/
ON
Reduced
airflow
Red
/
ON
Alarm
status
/
blinking
Stopped
/ = no action
(1) detailed text is displayed in successive screens.
(2) Unless the status has been changed in advanced setup to stop the fans.
(3) See details in 4.13.
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4.12.3 Wiring diagram of relays when alarms
O.R.1
O.R.2
4.13 Fire alarm
The control can be connected to a fire detection system to :
- stop/start the supply/exhaust fans according to fire regulations
- set the airflows in case of fire alarms according to fire regulations
- allow firemen to overrule the existing setup and start/stop the fans as needed
4.13.1 Configuration
The supply / exhaust airflow configuration is made using the advanced setup.
4.13.2 Wiring diagram of fire alarm
If IN4 - 12V closed = fire alarm activated
If IN4 – 12V closed and,
•
IN7 - 12V closed = force start the supply fan(s) at pre-programmed airflow.
•
IN7 - 12V open = force stop the supply fan(s).
•
IN8 - 12V closed = force start the exhaust fan(s) at pre-programmed airflow.
•
IN8 – 12V open = force stop the exhaust fan(s).
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Appendix 1:
ADVANCED SETUP
The advanced setup allows to activate certain features or to modify certain parameters:
To start the advanced setup, press simultaneously on ‘SETUP’ and ‘ENTER’ until the text ADVANCED SETUP
appears on the screen. Principle: make selections via buttons ↑ ↓, then press ‘ENTER’. The numbers are introduced
digit by digit.
Mode
CA
LS
CPs
Step
12
Text on screen
ENTER ACCES CODE
0000
Description
If the access code procedure has been activated (see
step 28) you will need to enter the access code before
going any further.
STOP FAN IF V<Vlow?
N
Stop the fans automatically if 0-10V signal value is <
Vlow
Vlow: xx,x V
If Y was selected on step 4, fill in value of Vlow
V>Vhigh? N
Stop the fans automatically if 0-10V signal value is >
Vhigh
Vhigh: xx,x V
If Y was selected on step 6, fill in value of Vhigh
0-10V ON K3? N
Functionality to control supply fans through a 0-10V
signal connected on entry K2 and exhaust fans through
another 0-10V signal connected on entry K3. (Same
link voltage/airflows for both entries)
If CPs mode is configured
---CPs
8
CPs SPEED? 10
Tuning of the reaction speed of the CPs algorithm. The
default value is 10 and is the highest possible value.
Each increment of -1 corresponds to a doubling of the
reaction time (10=T, 9=2xT, 8=4xT, …). This feature is
very sensible, we recommend it only when operating in
constant pressure systems where the system is a room
and not a duct.
---CPs
LOGIC? NEGATIVE
Configuration CPs mode logic: ¦Negative logic: - the
airflow decreases when signal on K2 > assignment
value - the airflow increases when signal on K2 <
assignment value ¦Positive logic: - the airflow
increases when signal on K2 > assignment value - the
airflow decreases when signal on K2 < assignment
value
If LS mode is configured
--LS 34
--LS --LS -
4.1
56
--LS --LS -
6.1
7
9
If CA or LS mode is configured
CA --10 11
PRESSURE ALARM:
STOP FAN? N
For all working modes (CA, LS CPs)
CA LS CPs
12 13
START TORQUE? 2%
14
FIRE AL CONFIG? N
Functionality to automatically stop the fans in case of
alarm pressure (press RESET to restart fans after
correction of problem)
Fan starting torque can be modified here.
(by
default
2%)
Possibility to define the supply and exhaust airflows in
case of fire alarm.
CA
LS
CPs
CA
LS
CPs
14.1
SUPPLY? xxxx m³h
Enter the supply airflow in case of fire alarm.
CA
LS
CPs
14.2
EXHAUST? xxxx m³h
Enter the exhaust airflow in case of fire alarm.
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CA
LS
CPs
15 16 17
BYPASS T VALUES:
T1: 15° T2: 22°
Possibility to setup temperature values: outdoor T° (T1)
and indoor T° (T2) controlling the opening/closing of
the bypass. • Opening of bypass of all following
conditions are met : -Outdoor T° (sensor S1) < Indoor
T° (sensor S2). -Outdoor T° (sensor S1) > T1. -Indoor
T° (sensor S2) > T2. • Closing of bypass if one of the
following conditions is met:: -Outdoor T° ((sensor S1) >
indoor T° (sensor S2). -Outdoor T° (sensor S1) < T1 1°C. -Indoor T° (sensor S2) < T2 - 2°C.
CA
LS
CPs
18 19
SET m³h IF BYPASS
OPEN? N
Possibility to define different exhaust and supply airflow
when bypass is open.If Y is selected these airflows
become independant from the airflow assignment
defined by the working mode chosen and the status of
entries K1, K2, K3, when the bypass is closed.
CA
LS
CPs
19.1
SUPPLY 0000m³h
If you have selected Y at step 19 enter supply airflow to
be delivered when bypass is open.
CA
LS
CPs
19.2
EXHAUST 0000m³h
If you have selected Y at step 19 enter exhaust airflow
to be delivered when bypass is open
CA
LS
CPs
AF? N
If option KWin (pre-heat) is not installed: Option to
activate (Y) or not (N) the anti-freeze system (supply air
modulation) for the heat exchanger ?
CA
LS
CPs
20.1
CONFIG AF? N
If Y is selected in step 20: Option to edit the anti-freeze
system values.
CA
LS
CPs
20.1.1
T° LOW AF: 1°C
If Y is selected, go to step 20.1 (you have opted to
change the anti-freeze values), enter here the lower
value for the anti-freeze system.
CA
LS
CPs
20.1.2
T° HIGH AF: 5°C
change the anti-freeze values), enter here the higher
value for the anti-freeze system.
CA
LS
CPs
20.1.3
AF STOP FAN? Y
CA
LS
CPs
21
T° AF: +1.0°C
change the anti-freeze values), enter here your choice
to stop or not the fan when the T° reaches values <
T°LOW.
If the KWin option is installed: possibility to modify the
anti-freeze set point value (exhaust T° after the heat
recovery exchanger).
CA
LS
CPs
22
NV SPEED? 05
If the NV option is installed: Tuning of the reaction
speed of the post-heating algorithm. The default value
is 05 and corresponds to the middle value. Each
increment of -1 corresponds to a doubling of the
reaction time (05=T, 04=2xT, 03=4xT, …). Each
increment of +1 corresponds to a reduction by 2 of the
reaction time (05=T, 06=T/2, 07=T/4, …). This feature
is very sensible, we recommend it only if the T° is not
stable enough due to the reaction speed.
CA
LS
CPs
23
OUT3 m³h F1
CA
LS
CPs
24
OUT4 Pa F1
Selection of the information present on the 0-10V
output OUT3: Select information (airflow or pressure)
and fan (F1-F4) to be outputted on OUT3 (default is
airflow of fan F1).
Selection of the information present on the 0-10V
output OUT4: Select information (airflow or pressure)
and fan (F1-F4) to be outputted on OUT4 (default is
pressure of fan F1).
20
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CA
LS
CPs
CA
LS
CPs
CA
LS
CPs
CA
LS
CPs
CA
25
®
POST VENT? N
Possibility to activate a post-ventilation (continue to run
the fan for some time after softstop has been activated).
Caution: if preheat KWin = yes and/or postheat type
KWout is installed then the POSTVENT est automatically
activated and can not be set at NO.
TIME PV 0090 sec
If you have selected Y on step 25 enter time of duration
of post-ventilation in seconds. Attention: if an electrical
preheat (KWin) or postheat (KWout) is installed this time
is preset to 90sec and may not be reduced.
FAN RUN TIME? N
Possibility to activate a runtime counter. How much time
the fans have been running. This can help to generate a
maintenance procedure, or to stop the fans once a
certain runtime is reached.
26.1
TIME RESET? N
If Y was selected at step 26 you have here the possibility
to set the runtime counter at 0.
LS
CPs
26.2
DISPLAY TIME? N
to display the actual runtime.
CA
LS
CPs
26.3
SERVICE ALARM? N
to request a runtime alarm service or not.
CA
LS
CPs
26.3.1
TIME? 000000 h
If Y was selected at step 26.3 you have here the
possibility to set the runtime (in hours) after which a
maintenance alarm must be activated.
CA
LS
CPs
26.4
STOP FAN? N
to request all fans to stop after a certain runtime.
CA
LS
CPs
26.4.1
TIME? 000000 h
If Y was selected at step 26.4 fill in the runtime (in hours)
after which you want all fans to be automatically stopped.
CA
LS
CPs
27
DISPLAY ALARM
ONLY? N
Possibility to only display the alarms on the screen. "Fan
OK" will then be displayed when no alarm is activated.
CA
LS
CPs
28
ACCESS CODE? N
Possibility to activate an access code to control
inside the advanced setup.
CA
LS
CPs
CODE 0000
If Y is selected at step 28, enter here the access code to
advanced setup.
CA
LS
CPs
29
CA
LS
CPs
30
25.1
26
28.1
FACTORY RESET? N
END SETUP
the
access
Possibility to make a complete reset of all the parameters
of the CB. If you chose Y all the factory parameters will
be regenerated.
End of advanced setup.
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Appendix 2:
TECHNICAL INFORMATION - RC TAC3 - ALARMS
The RC TAC3 features 14 alarm types :
Type 1: alarm on fan failure
Type 2: alarm on pressure rise (modes CA and LS only).
Type 3: alarm on the reference pressure initialization
Type 4: alarm of non respect of assignment
Type 5: alarm on CB data error
Type 6: fire alarm (external contact to engage fire alarm procedure on )
Type 7: alarm on maintenance failure. (see advanced setup)
Type 8: alarm on communication failure between CBr4 - i/o - RC.
Type 9: alarm on temperature sensor S1/S2/S3.
Type 10: alarm on temperature sensor S4 (with NV option only).
Type 11: alarm on temperature sensor S5 (with NV option only).
Type 12: alarm on low supply air T°(with NV option only).
Type 13/14: alarm on defrosting mode (with preheating Kwin option only).
Type 1: alarm on fan failure
Describes a fan function default on fan Fx.
Check wiring, connections and 230V supply. Otherwise the cause must be a motor failure.
RC actions
Text displayed
ALARM
and
LED
recommended
fixes(1)
Red
ALARM FANx
Pa LED
LED
ALARM
/
ON
CHECK POWER
i/o REC circuit actions
AL1
R2 relay
AF LED
Relay
of SAT3
(O.R.1)
Alarm
status
/
/
Fan action
stopped
SUPPLY AND
CABLES
CONNECT
THEN PRESS
RESET
IF NOT SOLVED
REPLACE CABLE
OR CB OR
MOTOR
(1) this text is displayed in several consecutive screens
Type 2: Pressure alarm (CA and LS modes only)
This alarm means :
-That the calculated pressure value exceeds the accepted level. This level is determined according to the system
curve defined by the nominal airflow and the corresponding pressure + the increment, or
-That an external pressure device closed the contact between terminals +12V and IN5 of the i/o circuit .
RC actions
Text displayed
ALARM
and
LED
recommended
fixes(1)
/
PRESSURE
ALARM
Pa LED
Red
LED
AL1
R2 relay
ALARM
Relay
of SAT3
(O.R.1)
ON
/
Closed
Fan action
AF LED
/
/
(2)
ON FANx
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(2) Default action is no action, but this can be changed to ‘stop the fans’ with the ‘advanced setup’ feature.
Check the filters and clean or replace if necessary. This alarm can also be caused by anything that could cause an
undesired pressure rise: damper closed when it shouldn’t, obstacle in ducting,…or by a faulty initialization.
Type 3: Alarm on reference pressure initialization
At this stage 3 types of problems can occur :
- Actual fan airflow < requested airflow: the requested airflow is located at a pressure level the fan cannot reach.
- Actual fan airflow > requested airflow : This alarm signals that the nominal airflow requested cannot be reached
because the lower boundary of the fan’s working range is reached. The airflow delivered is therefore superior to the
requested airflow
- Pressure too unstable.
In this case, Paref cannot be defined and motor sets itself in “softstop”. To restart, press RESET on the i/o REC
circuit, or with the SETUP of the RC:
- If this occurs during an alarm pressure setup, the will then operate normally without a pressure alarm. If you wish
a pressure alarm anyway, determine the cause (system pressure or configuration, airflow, working zone of fan,…)
and re-start setup again.
- If this occurs during a CP mode setup, you need to determine the cause (system pressure or configuration, airflow,
working zone of fan,…) and re-start setup again.
RC actions
Text displayed
ALARM
and
LED
recommended
fixes (1)
Red
INIT PA
ALARM (2)
Pa LED
LED
ALARM
/
ON
AL1
R2 relay
AF LED
Relay
of SAT3
(O.R.1)
Alarm
status
/
/
Fan action
Stopped
(2) Texts displayed in the 3 cases :
Displayed text
Description
INIT PA ALARM
Actual fan airflow < requested airflow: the requested airflow is located at a
pressure level the fan cannot reach. Change the air system, or the airflow
requested, or a use bigger fan. (1)
ON FANx AIRFLOW TOO LOW
Text is displayed on several successive screens
DUE TO TOO HIGH PRESSURE
REDUCE PRESSURE OR FLOW
THEN
RESTART PA INIT VIA THE
SETUP.
PRESS FIRST ON RESET.
INIT PA ALARM
ON FANx AIRFLOW TOO HIGH
MINIMUM MOTOR LIMIT
This alarm signals that the nominal airflow requested cannot be reached
because the lower boundary of the fan’s working range is reached.
The airflow delivered is therefore superior to the requested airflow. (1)
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ACHIEVED SET HIGHER
AIRFLOW
THEN
RESTART PA INIT
VIA THE SETUP.
PRESS FIRST ON
RESET.
Pressure too unstable. Change the air system or airflow request. (1)
INIT PA ALARM
ON FANx PA NOT STABLE.
CHANGE WORKING POINT
THEN
RESTART PA INIT VIA THE
SETUP.
PRESS FIRST ON RESET.
Type 4: Alarm for impossibility to execute the airflow assignment
These alarms signal that nominal airflow requested cannot be reached because the limits of the fan’s working area
have been reached.
RC actions
Text displayed
ALARM
and
LED
recommended
fixes(1)
/
CA, LS or CP
ALARM
-
Pa LED
LED
ALARM
/
ON
AL1
R2 relay
AF LED
Relay
of SAT3
(O.R.1)
/
/
Fan action
/
/
CA/LS alarm ( CA or LS mode):
The airflow requested cannot be maintained at constant level:
2 different situations can occur :
- The airflow requested cannot be held constant because the counter pressure on fan is too high:
Text displayed
Description
CA or LS ALARM
This alarm means the requested airflow cannot be reached.
ON FAN x
(text is displayed on several successive screens).
AIRFLOW TOO LOW.
REDUCE PRESSURE
ON THAT FAN.
Requested airflow cannot be held constant because the counter pressure on
the fan is too high.
- It is activated if actual airflow < 93% of requested airflow and
- Deactivated once airflow reaches value > 97% of requested airflow
The text appears on different successive screens.
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- The airflow requested cannot be held constant because the airflow is too low for the working range of the fan:
Text displayed
Description
CA or LS ALARM
This alarm signals that The airflow requested cannot be held constant
because the airflow is too low for the working range of the fan.
ON FAN x
AIRFLOW TOO HIGH
MINIMUM MOTOR
LIMIT ACHIEVED
Activated when airflow is > 112% of requested airflow
Deactivated when airflow < 108% of requested airflow .
-
CP Alarm (mode CPs):
The requested pressure cannot be held constant in 2 cases:
- The minimum airflow of the fan is reached and calculated pressure is still superior to requested pressure:
Text displayed
Description
CP ALARM
This alarm states that the minimum airflow of the fan is reached and
calculated pressure is still superior to requested pressure.
ON FAN x
PRESSURE TOO HIGH
MINIMUM AIRFLOW
ACHIEVED
Activated when pressure is > 112% of requested airflow
Deactivated when pressure < 108% of requested airflow.
- The mum airflow of the fan is reached and calculated pressure is still inferior to requested pressure:
Text displayed
CP ALARM
ON FAN x
PRESSURE TOO LOW
Description
This alarm states that the mum airflow of the fan is reached and calculated
pressure is still inferior to requested pressure.
MUM AIRFLOW
ACHIEVED
Activated when pressure is < 93% of requested airflow
Deactivated when pressure >97% of requested airflow.
Type 5: Alarm for data error
This alarm indicates an error in the data of the control circuit.
RC actions
Text displayed
ALARM
Pa LED
LED
AL1
R2 relay AF LED
LED
ALARM
Relay
of SAT3
(O.R.1)
Red
/
ON
Alarm
/
/
DATA
status
ERROR
Fan action
Stopped
To solve this problem make a « factory reset » using the advanced setup (to activate press keys SETUP and
ENTER simultaneously until text “ADVANCED SETUP” appears on the screen. Select “factory reset” and press
enter.)
If not solved circuit has to sent back for a factory reprogramming.
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Type 6: fire alarm (external contact to engage fire alarm procedure on )
RC actions
Text displayed
ALARM
LED
FIRE
ALARM
Red
Pa LED
LED
ALARM
/
ON
AL1
R2 relay AF LED
Relay
of SAT3
(O.R.1)
Alarm
/
/
status
Fan action
Stopped, or running
(depends on setup and
status of entries IN7 and
IN8 of i/o circuit)
Wiring diagram of ‘fire alarm’ on the i/o circuit :
Contact IN4 - 12V closed = fire alarm activated.
If IN4 – 12V closed :
• Contact IN7 - 12V closed = Start the supply fan(s) when fire alarm activated (1).
• Contact IN7 - 12V open = Stop the supply fan(s) when fire alarm activated (1).
• Contact IN8 - 12V closed= Start the exhaust fan(s) when fire alarm activated (1).
• Contact IN8 - 12V open = Stop the exhaust fan(s) when fire alarm activated (1).
(1) the requested airflow is configured in the advanced setup
Type 7: alarm on maintenance failure. (see advanced setup)
SERVICE ALARM: This alarm signals that the operating time of the fan(s) exceeds the time limit configured in the
setup. This alarm does not stop the fans.
RC actions
Fan action
Text
ALARM
Pa LED
LED
AL1
R2 relay
AF LED
displayed
LED
ALARM
Relay
of SAT3
(O.R.1)
Red
/
ON
Alarm
/
/
/
ALARM
status
SERVICE
To reset this alarm you need to enter the advanced setup menu and reset the VENT RUN TIME.
FAN STOP SERVICE: This alarm signals that the operating time of the fan(s) exceeds the time limit configured in
the setup. This alarm stops the fans.
Fan action
AL1
R2 relay
AF LED
Relay
of SAT3
(O.R.1)
Red
/
ON
Alarm
/
/
Stopped
FAN STOP
status
SERVICE
To reset this alarm you need to enter the advanced setup menu and reset the VENT RUN TIME.
Text
displayed
RC actions
ALARM
LED
Pa LED
LED
ALARM
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®
Instruction manual
801 DC - 4001 DC
Type 8: alarm on communication failure between CBr4 - i/o - RC
This alarm signals a communication failure between the different modules of the Maxi control.
Text
displayed
RC actions
ALARM
LED
Red
CB COM
ERROR
Pa LED
LED
ALARM
/
Blinks
AL1
R2 relay
Relay
of SAT3
(O.R.1)
Alarm
/
status
Fan action
AF LED
/
Stopped
Type 9: Alarm for T° sensor failure S1/S2/S3
This alarm signals a failure of one (or more) of the temperature sensors connected on the CBr4. It is either opened,
short circuited or not connected. These sensors are used for the bypass and the antifrost control.
After correcting the failure carry out a RESET with the SETUP on the RC, or with the RESET key on the i/oREC
circuit.
Text
displayed
RC actions
ALARM
LED
Red
ALARM T°
SENSOR
1/2/3 (1)
Pa LED
LED
ALARM
/
ON
AL1
R2 relay
Relay
of SAT3
(O.R.1)
Alarm
/
status
Fan action
AF LED
/
Stopped
(1) 2 Ursachen des Sensoralarms sind möglich :
Displayed text
Description
ALARM T° SENSOR 1/2/3
This alarm signals that sensor 1/2/3 is not connected or is faulty.
IS OPEN OR IS
NOT CONNECT.
CHECK CONNECT.
Check the wiring of the sensor. Otherwise replace the sensor.
The text on the LCD is displayed in successive screens.
OR
REPLACE SENSOR
THEN PRESS
ON RESET
ALARM T° SENSOR 1/2/3
This alarm signals that sensor 1/2/3 is short-circuited.
(SHORT-CIRCUIT)
REPLACE SENSOR
THEN PRESS
Replace the sensor.
ON RESET
Type 10:
alarm on temperature sensor S4 (with NV option only)
This alarm signals that sensor S4 connected to the CBr4 and on the NV water coil is defect or not connected. This
sensor is used for the anti-frosting control system of the NV coil. If this occurs the 3 way valve is opened and the
O.R.3 contact is closed (used to start circulator).
After fixing the failure, carry out a RESET via SETUP on the RC or via RESET key on i/o REC circuit.
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Status 03.09.09
801 DC - 4001 DC
Text
displayed
RC actions
ALARM
LED
Pa LED
LED
ALARM
Red
/
ON
ALARM T°
SENSOR 4
ALARM
(1)
®
Instruction manual
AL1
R2 relay
Relay
of SAT3
(O.R.1)
Alarm
/
status
Fan action
AF LED
/
/
(1) 2 kinds of alarms are possible :
Displayed text
Description
ALARM T° SENSOR 4
This alarm signals that sensor 4 is not connected or is faulty.
IS OPEN OR IS
NOT CONNECT.
CHECK CONNECT.
OR
REPLACE SENSOR
THEN PRESS
ON RESET
This alarm signals that sensor 4 is short-circuited.
ALARM T° SENSOR 4
(SHORT-CIRCUIT)
Replace the sensor.
REPLACE SENSOR
THEN PRESS
ON RESET
Type 11:
alarm on temperature sensor S5 (with NV option only)
This alarm signals that sensor S5 connected to i/o REC module and in supply air ducting is defect or not connected.
This sensor is used for the air temperature control of the NV coil.
After fixing the failure, carry out a RESET via SETUP on the RC or via RESET key on i/o REC circuit.
If an electrical coil KWout is used, then if this sensor is defect no alarm will be generated, since this sensor is then
used only for information.
Text
displayed
RC actions
ALARM
LED
Pa LED
LED
ALARM
Red
/
ON
ALARM T°
SENSOR 5
ALARM
(1)
AL1
R2 relay
Relay
of SAT3
(O.R.1)
Alarm
/
status
Fan action
AF LED
/
/
(1) 2 kinds of alarms are possible :
Displayed text
Description
ALARM T° SENSOR 5
This alarm signals that sensor 5 is not connected or is faulty.
IS OPEN OR IS
NOT CONNECT.
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®
Instruction manual
801 DC - 4001 DC
CHECK CONNECT.
OR
REPLACE SENSOR
THEN PRESS
ON RESET
This alarm signals that sensor 5 is short-circuited.
ALARM T° SENSOR 5
(SHORT-CIRCUIT)
Replace the sensor.
REPLACE SENSOR
THEN PRESS
ON RESET
Type 12:
alarm on low supply air T° (with NV option only)
This alarm signals that the assigned supply air T° cannot be reached. (meaning actual T° < assigned T° for more
than 15 minutes while 3 way valve on the NV coil fully opened).
Text
displayed
RC actions
ALARM
LED
Red
POSTHEAT
ALARM
Pa LED
LED
ALARM
/
ON
AL1
R2 relay
Relay
of SAT3
(O.R.1)
/
/
Fan action
AF LED
/
/
NV T°
TOO LOW
Type 13 et 14:
alarm on anti-frost mode (with preheating Kwin option only
In specific T° conditions (when the pre-heating is insufficient) on the exhaust airflow after heat exchange, the control
will override the pre-heating coil Kwin control in order to avoid a risk of frosting the heat exchanger.
a)
Alarm type 13: If T° < (assignment T°- 1,5°C) for more than 5 minutes, the supply and the exhaust airflow
are reduced for 15 minutes (ventilation remains balanced).
b)
Alarm type 14: If T° < -5°C for more than 5 minutes, the fans are stopped. To restart the fans, after
explanation of the failure, carry out a RESET via SETUP on the RC or via RESET key on i/o REC circuit.
c)
Text
displayed
AF T°
ALARM
AIRFLOW
REDUCED
AF T°
ALARM
RC actions
ALARM
LED
Pa LED
LED
ALARM
Red
/
ON
Red
/
ON
AL1
R2 relay
Relay
of SAT3
(O.R.1)
/
/
Alarm
status
/
Fan action
AF LED
ON
Reduced airflow
Blinking
Stopped
STOP
FANS
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Instruction manual
801 DC - 4001 DC
®
APPENDIX – Wiring diagrams
Option SAT3
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Instruction manual
801 DC - 4001 DC
Appendix 3:
TECHNICAL DOCUMENTATION VISUALIZATION
1. Default Display
The default setting displays actual airflow, pressure, and alarm (if activated) of the fans (loop 1 → 9 → 1 …):
Step
Text on display
Description
1
SUPPLY(1) xxxx
m³h
SUPPLY(1) xxxx
Pa
SUPPLY2 xxxx
m³h
SUPPLY2 xxxx
Pa
EXHAUST(1)
xxxx m³h
EXHAUST(1)
xxxx Pa
EXHAUST2 xxxx
m³h
EXHAUST2 xxxx
Pa
Alarm xxx
Display actual supply fan1 airflow
2
3
4
5
6
7
8
9
(m3/h)
Display actual supply fan 1 pressure (Pa)
If 4000: Display actual supply fan2
airflow
(m3/h)
If 4000: Display actual supply fan2
pressure
re (Pa)
Display actual exhaust fan1 airflow (m3/h)
Display actual exhaust fan 1 pressure
If 4000: Display actual exhaust fan2
airflow (m
If 4000: Display actual exhaust fan2
pressure
Display of alarm type
(Pa)
3/h)
(Pa)
2. Display all parameters
By pressing the ↑ and ↓ keys, it is possible to display the status of all the parameters :
Step
Text on display
Description
Alarm type if relevant
Display of Idcode of heat recovery unit (6 digits)
7
Alarm xxx
REC TYPE
xxxxxx
KW IN ?
YES
KW OUT ?
YES
NV ?
YES
CT IN ?
YES
MODE xxx
8
SET VAL. xxxx
Display of actual assignment in function of setup and K1/K2/K3 status
9
SET VAL. NV:
xx°C
If NV present: display of the assigned T°
10
%EXH/SUP xxx
%
Pa ALARM
SUPPLY:
m³h: xxxx Pa:
xxxx
Display of the assigned exhaust
1
2
3
4
5
6
11
12
If option KW IN (electrical preheating coil) is present
If option KW OUT(electrical postheating coil) is present
If option NV (postheating water coil) is present
If option CT (inlet damper) is present
Display working mode selected (CA, LS, CPf, CPs)
/
supply ratio
If activated, pressure alarm data on supply side
If pressure alarm is activated, display of setup values (m3/h, Pa) at which alarm
will be turned on for the supply side (CA and LS modes).
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13
®
Instruction manual
801 DC - 4001 DC
Pa ALARM
EXHAUST:
m³h: xxxx Pa:
xxxx
If activated, pressure alarm data on exhaust side
ACTUAL
VALUES
SUPPLY(1) xxxx
m³h
Display of actual values
17
SUPPLY(1) xxxx
Pa
Actual counterpressure on fan 1, supply side
18
SUPPLY2 xxxx
m³h
If 4000: Actual airflow delivered by fan 2, supply side
19
SUPPLY2 xxxx
Pa
If 4000: Actual counterpressure on fan 2, supply side
20
EXHAUST(1)
xxxx m³h
EXHAUST(1)
xxxx Pa
Actual airflow delivered by fan 1, exhaust side
22
EXHAUST2 xxxx
m³h
If 4000: Actual airflow delivered by fan 2, exhaust side
23
If 4000: Actual counterpressure on fan 2, exhaust side
24
EXHAUST2 xxxx
Pa
K1 OPEN
25
K2 xxxxxx
26
K3 OPEN
Status of input K2 : OPEN or CLOSED (CA mode), or xx,x V if (LS/CPs) or ‘Not
used’ (CPf mode)
Status of input K3 : OPEN or CLOSED
27
IN3 OPEN
Status of input IN3 : OPEN or CLOSED (selection of master: i/o circuit or RC)
28
IN4 OPEN
Status of input IN4 : OPEN or CLOSED (fire alarm)
29
IN5 OPEN
Status of input IN5 : OPEN or CLOSED (external pressure alarm device)
30
IN6 OPEN
Status of input IN6 : OPEN or CLOSED (post-heating NV option on/off)
31
IN7 OPEN
32
IN8 OPEN
Status of input IN7 : OPEN or CLOSED (stop/start the supply fan(s) in case of
fire alarm(s)
Status of input IN8 : OPEN or CLOSED (Stop/start of the exhaust air fans in
case of a fire alarm)
33
T°1 xx,x °C
34
T°2 xx,x °C
35
T°3 xx,x °C
Display of the actual value (°C) on sensor S3 (resulting exhaust T° used for
antifrost control).
36
T°4 xx,x °C
37
T°5 xx,x °C
If NV option (post-heating water):
Display of actual value of T°
sensor S4
(used for coil antifreeze control).
-If NV option: display of value of S5 (used for the T° control system of NV coil
with 3 way valve) (compulsory) - If no NV option is used this input can display the
actual output T° (option)
38
39
BYPASS
CLOSED
A-FREEZE OFF
40
OUT1 xx.x V
14
15
16
21
If pressure alarm is activated, display of setup values (m3/h, Pa) at which alarm
will be turned on for the exhaust side (CA and LS modes).
Actual airflow delivered by fan 1, supply side
Actual counterpressure on fan 1, exhaust side
Status of input K1 : OPEN or CLOSED
Display of the actual value (°C) on sensor S1 (outside T°
used for bypass control)
Display of the actual value (°C) on sensor S2 (inside T°
used for bypass control)
Display of by-pass status OPEN or CLOSED
Display of status of anti-frosting device of heat exchanger or post-heating coil
OFF / REC ON / NV ON.
If option NV: Display of output voltage value OUT1 that controls the 3 way valve
on NV coil.
48
Status 03.09.09
41
CT IN CLOSED
42
R3 SAT3 CBr:
OFF
43
R2 SAT3 CBr:
OFF
Instruction manual
801 DC - 4001 DC
®
If CT option (inlet damper):
Display of status of damper :
CLOSED
/ OPENING
/ OPEN
If KW IN option: Display of status of the relay R3 (ON or OFF) of SAT3 mounted
on CBr and serial connected on the control panel of the power control of the preheating coil KW IN.
If KW OUT option: Display of status of the relay R2 (ON or OFF) of SAT3
mounted on CBr and serial connected on the control panel of the power control
of the pre-heating coil KW OUT.
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801 DC - 4001 DC
Appendix 4:
INSTALLATION INSTRUCTIONS NV POSTHEATING COIL
To enhance your Maxi with an NV postheating coil you need:
1)
2)
3)
4)
5)
Assemble the NV water coil, the 3 ways valve and the T° sensors in the unit
Make the water connections
Make the electrical connections
Configure the new option using the ‘product setup’ menu
Configure the assigned output air T° with ‘setup’ menu
Maxi unit with NV post heating coil
1
4
3
2
1 = CBr4 TAC3 REC circuit
2 = i/o REC circuit
3 = NV post-heating coil (to be assembled by installer)
4 = 3 ways valve (to be assembled by installer)
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801 DC - 4001 DC
Step 1: Assemble the NV water coil, the 3 ways valve and the T° sensors in the unit
- Fasten one of the 2 T° sensors delivered in the supply ducting (T5 sensor).
- Fasten the other sensor on the NV water coil as shown in picture 1.
- Assemble the water coil NV in the unit as shown in picture 1.
- Fasten the coil as indicated in pictures 2 and 3 hereunder.
- Fasten the 3 ways valve in the unit as picture 4 shows.
T4 sensor
Picture 1:
NV coil proper mounting and sensor positioning
Picture 2:
Fasten lower part of coil as shown.
Picture 3:
Only lay the upper part of the coil on the frame, do
not use fixing materials as this may cause damage to
the heat recovery unit.
Picture 4:
Fasten 3 ways valve in the unit as shown
(fastening plates are delivered)
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801 DC - 4001 DC
Step 2: Make the water connections
•
Connection schematic:
•
Connection specifications:
Unit
801
1201
2001
3001
4001
Coil
connection Ø
1/2’’
1/2’’
1/2’’
1/2’’
1/2’’
3 ways valve
connection
Ø
3/4’’
3/4’’
3/4’’
3/4’’
3/4’’
Heating
capacity
(*)
4,5 kW
8,0 kW
13,2 kW
19,4 kW
27,8 kW
Water flow
(*)
199 l/h
353 l/h
585 l/h
857 l/h
1200 l/h
Water Pressure
loss
(*)
1,4 kPa
6,5 kPa
20,4 kPa
11,1 kPa
26,8 kPa
(*) Nominal values for following conditions: air T° in 18°C, water regime of 90/70°C and maximum
airflow. For other selection conditions please refer to Maxi selection program.
Step 3: Make the electrical connections
3.1 Connecting the 2 T° sensors (T4 et T5)
a) Connect the T° sensor coming from the water coil (T4) to terminals GND and T°4 of the CBr4 TAC3 REC circuit
(see page 1).
b) Connect the T° sensor coming from the ducting (T5) to terminals GND and T°5 of the i/o TAC3 REC circuit
(see page 1).
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801 DC - 4001 DC
3.2 Connecting the 3 ways valve to the control board
Make the electrical connection of the valve to the CBr4 TAC3 REC circuit as shown hereunder:
3.3 Connecting your circulator (not provided) to the control (optional)
It is possible to connect the control of your circulator to relay O.R.3 of the i/o circuit as shown hereunder:
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801 DC - 4001 DC
®
Step 4: Configure the NV option using the ‘product setup’ menu
This setup is done using the LCD display and the SETUP, ↑, ↓ and ENTER keys of the RC.
To start configuration:
- Press on the selection key of the RC (left on the picture), so that the SETUP LED is lit
- Press simultaneously on the ↑ and ↓ until SETUP PRODUCT appears on the screen
Principle: select with ↑ and ↓ keys then press ENTER key to validate. Numbers are
introduced digit by digit.
Step
Display
Description
1
CODE
0000
REC TYPE
xxxxxx
PREHEAT
KW IN? N/Y
POSTHEAT
OFF
CT IN ?
N/Y
END SETUP
Enter 5030 to enter product setup menu
2
3
4
5
6
Press ENTER do not modify pre-set factory code
Select NV from list then press ENTER
End of product setup
Step 5. Configure the assigned output T° using the ‘setup’ menu
This setup is done using the LCD display and the SETUP, ↑, ↓ and ENTER keys of the RC.
To start configuration:
- Press on the selection key of the RC (left on the picture), so that the SETUP LED is lit
- Press simultaneously on the ↑ and ↓ until SETUP PRODUCT appears on the screen
Principle: select with ↑ and ↓ keys then press ENTER key to validate. Numbers are
introduced digit by digit.
Step
Display
Description
1
LANGUAGE?
GB
SUPPLY ?
xx°C(NV)
WORKING
MODE xxx
Choose your language
2
3
Enter here the assignment T° to be held constant by the NV coil and its control
system.
Press the SETUP key to exit setup mode
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801 DC - 4001 DC
Appendix 5:
INSTALLATION CONTROL DATASHEET (to be filled in after starting the installation)
Installed by:
Name:
______________________________________________________________________________
Company:
______________________________________________________________________________
Address:
______________________________________________________________________________
Telephone:
______________________________________________________________________________
Installation date: ___/___/___
CONFIGURATION PARAMETERS :
1
model
2
3
Working mode
If CA mode:
CA LS CPs
m³h K1 =
Other
m³h K2 =
m³h K3 =
4
If LS mode:
Vmin =
Vmax =
m³h≡Vmin =
m³h≡Vmax =
5
If CPs mode:
6
7
% EXT/PUL
Pressure alarm (modes CA / LS only)
8
9
9
If KWin option :
If KWout option
If NV option :
% on K3 =
Assignment Pa=
V (or
% on K3 =
%
Activated ? yes / no If yes:
Automatic / Manual setup
Initialisation:
Supply:
m³h
Pa
Exhaust:
m³h
Pa
T° KWin =
°C
T° KWout =
°C
T° NV =
°C
Pa)
Indicate here all changes made in the advanced setup, if any:
VALUES READ OFF DISPLAY WHEN in OPERATION:
1
Supply Aiflow 1
2
Supply pressure 1
3
Supply airflow 2 ( 4000 only)
4
Supply pressure 2 ( 4000 only)
5
Exhaust airflow 1
6
Exhaust pressure 1
7
Exhaust airflow 2 ( 4000 only)
8
Exhaust pressure 2 ( 4000 only)
m³/h
Pa
m³/h
Pa
m³/h
Pa
m³/h
Pa
55

Instruction manual

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