Part 1 General Information

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Tepelná čerpadla
Vzduch - voda Midea s chladivem R-410a Digital Scroll
•
Část 1: obecné informace
•
Část 2: venkovní jednotka
•
Část 3: Instalace
•
Část 4: ovládání
Specifikace a design výrobků mohou být výrobcem změněny bez předchozího upozornění.
Část 1
Všeobecné informace
1. Modelová řada vnitřních/venkovních jednotek
2. Vzhled jednotek
3. Nomenklatura
4. Vlastnosti
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1. MODELOVÁ ŘADA VENKOVNÍCH JEDNOTEK
Model
Chadivo
Výkon (kW)
Napájení (V-fáz-Hz)
MGA-D10/N1
R410A
10
220-240, 1, 50
MGA-D12/N1
R410A
12
220-240, 1, 50
MGA-D12/SN1
R410A
12
380-415, 3, 50
MGA-D14/SN1
R410A
14
380-415, 3, 50
MGA-D16/SN1
R410A
16
380-415, 3, 50
Poznámka : v ČR a SR budou dostupné pouze jednotky označené tučně (tj. 3-fázové napájení) !
2. Venkovní vzhled jednotek
2.1 Venkovní jednotka
MGA-D10/N1
MGA-D12/N1 MGA-D14/SN1 MGA-D16/SN1
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2.2 Vnitřní výměník : voda – chladivo
3. Nomenklatura
Venkovní jednotka ：
4. Vlastnosti
1. Ekologické chladivo R410A (dvousložkové azeotropní)
2. Aplikace úsporného kompresoru Copeland – technologie Digital Scroll
3. Možnost dálkového ZAP/VYP a monitorování provozu a event poruch
3. Výhodná a poěrně jednoduchá montáž – venkovn í jednotka , výměník chladivo – voda uvnitř objektu
4. Komfortní řešení pro každý rezidenční object, přesné ovládání teploty vody , ekonomický provoz
5. Přizpůsobivé a pohodlné ovládání-přesné nastavení teploty vody na kabelovém termostatickém ovladači
s možností vyvolání provozních/poruchových stavů z paměti.
6. Použitím technologie Digital Scroll je eleminováno elektromagnetické rušení.
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Část 2
Venkovní jednotka
1. Specifikace …………………………………………………
2. Rozměry …………………………………………………….
3. Servisní prostor ……………………………………………
4. Schéma potrubní instalace ………………………………
5. Schéma elektrického zapojení …………………………..
6. Elektrické charakteristiky ………………………………..
7. Výkonové tabulky …………………………………….......
8. Provozní teplotní rozsahy………………………………..
9. Hydraulické charakteristiky……………………………..
10. Hladina akustického tlaku ……………………………..
11. Vzhled jednotky…………………………………………...
12.Diagnostika poruch ………………………………………
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1. Specifikace
2. Rozměry
2.1 Venkovní jednotka
Unit: mm
Rozměry
MGA-D10/N1
MGA-D12/(S)N1
MGA-D14/SN1
MGA-D16/SN1
A
990
940
940
940
B
966
1250
1250
1250
Vnitřní (deskový) výměník : voda – chladivo
C
340
340
340
340
D
624
600
600
600
E
366
376
376
376
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3. Požadovaný servisní prostor
4. Schéma potrubní instalace
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Poznámky :
No
1
2
3
4
5
Název
Kompresor
Presostat vysok. tlaku
4-cestný ventil
Kondenzátor
Filtr
No
6
7
8
9
10
Název
Kapilára
Sběrač kapalného R-410a
Deskový výměník (svařovaný)
Odlehčovací/by-pass ventil
Čidlo teploty vody
5. Schéma elektrického zapojení
5.1 MGA-D10/N1
No
11
12
13
14
Název
Tlakový rozdílový spínač – voda
Sběrač na sání
Presostat nízkého tlaku
Ohřev oleje
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5.2 MGA-D12/N1
5.3 MGA-D12/SN1 MGA-D14/SN1 MGA-D16/SN1
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6. Elektrické charakteristiky
Mo
d.
kW
Napájení
systému (Vph-Hz)
10
12
12
14
16
220-240-1-50
220-240-1-50
380-415-3-50
380-415-3-50
380-415-3-50
Jmenovité hodnoty (1)
Kompresory
Ventilátor/-y
Čerpadlo
Celkem
F.L.I.
F.L.A.
F.L.I.
F.L.A.
F.L.I.
F.L.A.
F.L.I.
F.L.A.
F.L.I.
F.L.A.
(kW)
5.0
5.0
5.75
5.75
5.75
(A)
23.2
23.2
9.8
9.8
9.8
(kW)
0.3
0.37
0.37
0.37
0.37
(A)
1.4
1.6
1.6
1.6
1.6
(kW)
0.5
0.5
0.5
0.5
0.5
(A)
2.2
2.2
2.2
2.2
2.2
(kW)
5.8
5.8
6.62
6.62
6.62
(A)
26.8
27
13.6
13.6
13.6
(kW)
7.54
7.63
8.6
8.6
8.6
(A)
34.8
35.1
17.7
17.7
17.7
L.R.A
.
(A)
147
17
82.4
82.4
82.4
Max.
hodnoty (2)
Jištění
Pojistk
y
5×20m
m
250V
Pojistk
a1
10A
10A
10A
10A
10A
Remark:
F.L.I. Příkon
F.L.A. Proud
L.R.A. Rozběhový proud kompresoru
(1) Venkovní teplota vzduchu 35℃-Teplota vody na výparníku – spád 12/7℃
(2) Hodnoty jsou platné při nejnižším napětí (50Hz). Tyto hodnoty jsou základem pro určení velikosti jističů
a průměru vodičů(kabelů).
7. Výkonové tabulky
7.1 Chlazení –aplikace s konvektory “fancoil” nebo chladicími trámy
Model
Ta.
25
30
35
40
43
Tw
Pf
Pa
Pat
Qev
△Pev
Pf
Pa
Pat
Qev
△Pev
Pf
Pa
Pat
Qev
△Pev
Pf
Pa
Pat
Qev
△Pev
Pf
Pa
Pat
Qev
△Pev
5
10.9
3.3
4.1
1.9
47.3
10.4
2.9
3.4
1.8
44.7
9.9
3.3
3.8
1.7
40.5
9.4
3.6
4.1
1.6
36.0
9.0
3.8
4.3
1.5
31.5
6
11.2
3.3
4.1
1.9
47.6
10.8
2.9
3.4
1.8
45.6
10.2
3.3
3.8
1.7
41.3
9.7
3.6
4.1
1.6
36.6
9.3
3.8
4.3
1.6
35.7
MGA-D10/N1
7
8
11.5
11.8
3.4
3.4
4.2
4.2
2.0
2.0
50.0
50.3
11.1
11.5
3.0
3.1
3.5
3.6
1.9
2.0
47.7
49.8
10.5
10.7
3.4
3.4
3.9
3.9
1.8
1.9
45.0
48.0
10.0
10.3
3.7
3.7
4.2
4.2
1.7
1.7
40.8
41.4
9.5
9.8
3.9
3.9
4.4
4.4
1.6
1.7
36.6
40.5
9
12.1
3.4
4.2
2.1
54.0
11.8
3.1
3.6
2.0
50.4
11.0
3.5
4.0
1.9
48.6
10.6
3.8
4.3
1.8
45.5
10.0
4.0
4.5
1.7
41.3
10
12.4
3.5
4.3
2.2
57.0
12.1
3.1
3.6
2.0
50.9
11.3
3.5
4.0
2.0
51.0
11.0
3.8
4.3
1.8
45.8
10.3
4.0
4.5
1.8
46.5
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Ta.
25
30
35
40
43
Ta.
25
30
35
40
43
Model
Tw
Pf
Pa
Pat
Qev
△Pev
Pf
Pa
Pat
Qev
△Pev
Pf
Pa
Pat
Qev
△Pev
Pf
Pa
Pat
Qev
△Pev
Pf
Pa
Pat
Qev
△Pev
5
12.4
3.5
4.1
2.2
46.6
11.9
3.8
4.4
2.0
37.0
11.4
4.2
4.8
2.0
33.8
10.9
4.5
5.1
1.9
32.3
10.5
4.7
5.3
1.8
28.0
6
12.7
3.5
4.1
2.2
47.8
12.2
3.8
4.4
2.1
37.1
11.7
4.2
4.8
2.0
37.1
11.2
4.5
5.1
2.0
35.0
10.8
4.7
5.3
1.9
30.1
MGA-D12/(S)N1
7
8
13.0
13.3
3.5
3.6
4.1
4.2
2.3
2.3
49.6
51.8
12.5
12.8
3.8
3.9
4.4
4.5
2.1
2.2
40.6
43.2
12.0
12.3
4.2
4.3
4.8
4.9
2.1
2.1
40.6
43.2
11.5
11.8
4.5
4.6
5.1
5.2
2.0
2.0
36.3
38.4
11.1
11.4
4.7
4.8
5.3
5.4
1.9
2.0
33.8
37.4
9
13.6
3.6
4.2
2.3
54.6
13.1
3.9
4.5
2.2
46.1
12.6
4.3
4.9
2.2
46.1
12.1
4.6
5.2
2.1
41.0
11.7
4.8
5.4
2.0
38.6
10
13.9
3.6
4.2
2.4
60.0
13.4
3.9
4.5
2.3
48.0
12.9
4.3
4.9
2.2
48.0
12.4
4.6
5.2
2.1
45.1
12.0
4.8
5.4
2.0
40.5
Model
Tw
Pf
Pa
Pat
Qev
△Pev
Pf
Pa
Pat
Qev
△Pev
Pf
Pa
Pat
Qev
△Pev
Pf
Pa
Pat
Qev
△Pev
Pf
Pa
Pat
Qev
△Pev
5
14.8
3.6
4.1
2.6
49.3
14.1
4.1
4.6
2.4
43.9
13.4
4.6
5.1
2.3
40.8
12.5
5.1
5.6
2.2
33.3
12.0
5.5
6.0
2.1
30.6
6
15.1
3.6
4.1
2.6
50.0
14.4
4.1
4.6
2.5
47.9
13.7
4.6
5.1
2.4
43.5
12.8
5.1
5.6
2.2
34.5
12.3
5.5
6.0
2.1
32.5
MGA-D14/SN1
7
8
15.4
15.7
3.6
3.7
4.1
4.2
2.7
2.7
51.7
53.0
14.7
15.0
4.1
4.2
4.7
4.7
2.5
2.6
48.3
49.1
14.0
14.3
4.6
4.7
5.1
5.2
2.4
2.5
44.2
46.9
13.1
13.4
5.1
5.2
5.6
5.7
2.3
2.3
36.7
39.8
12.6
12.9
5.5
5.6
6.0
6.1
2.2
2.2
35.2
36.2
9
16.1
3.7
4.2
2.8
56.1
15.3
4.2
4.7
2.6
50.2
14.6
4.7
5.2
2.5
47.8
13.7
5.2
5.7
2.4
43.7
13.2
5.6
6.1
2.3
39.1
10
16.4
3.7
4.2
2.8
57.8
15.6
4.2
4.7
2.7
52.7
14.9
4.7
5.2
2.5
48.3
14.0
5.2
5.7
2.4
44.9
13.5
5.6
6.1
2.3
40.5
5
6
MGA-D16/SN1
7
8
9
10
Model
Ta.
Tw
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25
Pf
Pa
Pat
Qev
△Pev
Pf
Pa
Pat
Qev
△Pev
Pf
Pa
Pat
Qev
△Pev
Pf
Pa
Pat
Qev
△Pev
Pf
Pa
Pat
Qev
△Pev
30
35
40
43
15.5
3.9
4.7
2.7
54.9
14.9
4.4
5.2
2.6
51.0
14.4
4.9
5.7
2.6
50.8
13.9
5.3
6.1
2.5
46.8
13.5
5.7
6.5
2.4
41.4
15.7
3.9
4.7
2.7
57.6
15.2
4.4
5.2
2.6
52.9
14.7
4.9
5.7
2.6
53.1
14.2
5.3
6.1
2.5
49.1
13.8
5.7
6.5
2.4
44.3
16.0
3.9
4.7
2.8
59.4
15.5
4.4
5.2
2.7
50.9
15.0
4.9
5.7
2.7
55.8
14.5
5.3
6.1
2.6
51.5
14.1
5.7
6.5
2.5
47.0
16.3
4.0
4.8
2.8
62.1
15.8
4.5
5.4
2.7
54.7
15.3
5.0
5.8
2.7
58.1
14.8
5.4
6.2
2.6
53.1
14.4
5.8
6.6
2.5
49.1
16.5
4.0
4.8
2.9
65.2
16.1
4.5
5.4
2.8
59.9
15.6
5.0
5.8
2.8
61.2
15.1
5.4
6.2
2.7
55.8
14.7
5.8
6.6
2.6
51.5
16.8
4.0
4.8
2.9
67.7
16.4
4.5
5.4
2.8
63.0
15.9
5.0
5.8
2.8
63.2
15.2
5.4
6.2
2.7
59.4
14.8
5.8
6.6
2.6
59.4
Remark:
Ta: teplota venkovního vzduchu (°C) Tw : výstupní teplota vody (°C) Pa: příkon kompresoru (kW)
Pat: celkový příkon systému (kW)
7.2 Vytápění
Model
Ta. U.R.87%
-5
0
7
10
15
MGA-D10/N1
Tw
Pt
Pa
Pat
Qc
△Pc
Pt
Pa
Pat
Qc
△Pc
Pt
Pa
Pat
Qc
△Pc
Pt
Pa
Pat
Qc
△Pc
Pt
Pa
Pat
Qc
△Pc
35
8.3
3.6
4.4
1.5
29.4
9.4
3.7
4.5
1.8
27.5
13.2
3.8
4.6
2.2
37.2
12.3
3.9
4.7
2.3
40.5
13.8
4.0
4.8
2.4
45.8
40
8.3
3.9
4.7
1.5
28.4
9.4
4.0
4.8
1.8
25.6
13.1
4.1
4.9
2.2
35.8
12.2
4.2
5.0
2.3
40.0
13.7
4.3
5.1
2.4
45.1
45
8.3
4.2
5.0
1.5
27.0
9.4
4.3
5.1
1.8
24.8
13.0
4.4
5.2
2.2
34.5
12.1
4.5
5.3
2.3
39.2
13.6
4.6
5.4
2.3
43.6
50
—
—
—
—
—
9.2
4.5
5.3
1.8
23.2
12.9
4.7
5.5
2.2
33.1
12.0
4.8
5.1
2.3
38.8
13.5
4.9
5.7
2.3
42.9
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Model
Ta. U.R.87%
-5
0
7
10
15
Model
Ta. U.R.87%
-5
0
7
10
15
MGA-D12/(S)N1
Tw
Pt
Pa
Pat
Qc
△Pc
Pt
Pa
Pat
Qc
△Pc
Pt
Pa
Pat
Qc
△Pc
Pt
Pa
Pat
Qc
△Pc
Pt
Pa
Pat
Qc
△Pc
35
11.0
3.7
4.5
1.7
41.6
12.2
3.8
4.6
2.0
33.0
14.2
3.9
4.7
2.4
44.0
15.2
4.0
4.8
2.5
38.0
16.7
4.1
4.9
2.8
45.0
40
10.9
4.0
4.8
1.7
41.0
12.1
4.1
4.9
2.0
32.6
14.1
4.2
5.0
2.4
43.6
15.1
4.3
5.1
2.5
37.6
16.6
4.4
5.2
2.8
44.8
Tw
Pt
Pa
Pat
Qc
△Pc
Pt
Pa
Pat
Qc
△Pc
Pt
Pa
Pat
Qc
△Pc
Pt
Pa
Pat
Qc
△Pc
Pt
Pa
Pat
Qc
△Pc
35
10.4
4.0
4.8
1.9
25.8
13.1
4.0
4.8
2.3
21.1
16.2
4.1
4.9
2.8
31.2
17.6
4.2
5.0
3.1
36.4
19.8
4.3
5.1
3.5
45.4
40
10.5
4.4
5.2
1.9
27.2
13.0
4.4
5.2
2.3
21.1
16.1
4.5
5.3
2.8
31.1
17.5
4.6
5.4
3.1
36.2
19.7
4.7
5.5
3.5
45.2
45
10.8
4.3
5.1
1.7
40.3
12.0
4.4
5.2
2.0
32.1
14.0
4.5
5.3
2.4
43.1
15.0
4.6
5.4
2.5
37.2
16.5
4.7
5.5
2.8
44.6
50
—
—
—
—
—
11.9
4.6
5.4
2.0
31.8
13.9
4.8
5.6
2.4
42.8
14.9
4.9
5.7
2.5
37.0
16.4
5.0
5.8
2.8
44.2
45
10.6
4.9
5.7
1.9
27.0
13.0
4.9
5.7
2.3
21.0
16.0
5.0
5.8
2.8
31.0
17.4
5.1
5.9
3.1
36.0
19.6
5.2
6.0
3.5
45.0
50
—
—
—
—
—
12.9
5.4
6.1
2.3
21.0
15.9
5.5
6.3
2.8
31.0
17.4
5.6
6.4
3.1
35.9
19.4
5.7
6.5
3.5
44.9
MGA-D14/SN1
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Model
Ta. U.R.87%
-5
0
7
10
15
MGA-D16/SN1
Tw
Pt
Pa
Pat
Qc
△Pc
Pt
Pa
Pat
Qc
△Pc
Pt
Pa
Pat
Qc
△Pc
Pt
Pa
Pat
Qc
△Pc
Pt
Pa
Pat
Qc
△Pc
35
11.5
4.1
4.9
2.0
25.0
14.2
4.2
5.0
5.0
20.2
17.2
4.3
5.1
2.9
30.2
18.7
4.4
5.2
3.2
35.4
21.0
4.5
5.3
3.6
46.2
40
11.4
4.5
5.3
2.0
25.0
14.1
4.6
5.4
5.4
20.1
17.1
4.7
5.5
2.9
30.1
18.6
4.8
5.6
3.2
35.2
20.9
4.9
5.7
3.6
45.6
Remark:
Ta: Teplota venkovního vzduchu (°C )
Tw : výstupní voda z výměníku (°C)
Pt: topný výkon (kW)
Pa: příkon kompresoru (kW)
Pat: celkový příkon (kW)
Qc: průtok vody (m3/h)
ΔPc: tlaková ztráta ve výměníku (kPa)
— : podmínky mimo provozní rozsah
8. Provozní teplotní rozsahy
Chlazení
Vytápění
Teplota vody
Teplota venkovního vzduchu : 10℃～43℃
Vnitřní teplota : /
Venkovní teplota : 4℃～24℃ - typ “kompakt”
(-15°C až 55°C – dělený “Split”
Vnitřní teplota : /
4℃～55℃
45
11.3
5.0
5.8
2.0
24.8
14.0
5.1
5.1
5.9
20.0
17.0
5.2
6.0
2.9
30.0
18.5
5.3
6.1
3.2
35.0
20.8
5.4
6.2
3.6
45.0
50
—
—
—
—
—
13.9
5.6
5.6
6.4
19.9
16.9
5.7
6.5
2.9
30.0
18.4
5.8
6.6
3.2
34.8
20.7
5.9
6.7
3.6
44.4
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9. Hydraulické charakteristiky
9.1 Výkonová charakteristika čerpadla
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Note:
(*) Pro stanovení výtlačné výšky čerpadla je nutné zohlednit tlakové ztráty výměníku !
9.2 Tlakové ztráty výměníku
Model
10kW
Průtok vody
Tlaková ztráta
Model
Průtok vody
12 kW
14 kW
16 kW
Tlaková ztráta
m3/h
l/sec
kPa
0.8
0.222
26
1.0
0.278
29
1.2
0.333
33
1.4
0.389
37
1.6
0.444
42
1.8
0.500
46
2.0
0.556
50
2.2
0.611
m3/h
l/sec
kPa
kPa
kPa
1.2
0.333
35
28
26
1.4
0.389
39
31
29
1.6
0.444
44
36
32
1.8
0.500
47
40
37
2.0
0.556
50
43
41
2.2
0.611
53
46
45
2.4
0.667
58
50
49
2.6
0.722
10. Hladina hluku –akustického tlaku
54
52
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Note: H= 0.5 × height of outdoor unit
Note: The point A is in the middle of the whole outdoor panel.
Model
Akustický tlak dB(A)
MGA-D10/N1
57
MGA-D12/N1
60
MGA-D14/SN1
60
MGA-D16/SN1
60
11. Vzhled venkovní jednotky
11.1 MGA-D10/N1
11.2.1 MGA-D12/N1
11.2.2 MGA-D12/SN1
11.3 MGA-D14/SN1
11.4 MGA-D16/SN1
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12. Poruchy a jejich odstraňování – diagnostika
12.1 Příčina poruchy a řešení
Porucha
Čerpadlo nepracuje
Čerpadlo pracuje, kompresor
ne
Teplota vody je mimo rozsah
(chladná&teplá)
Kompresor se po zastavení
opět nerozeběhne
Příčina
Řešení
1. Napětí je mimo stanovený
rozsah
2. Nedostatečný průtok vody
1. Odpojený elektrický obvod
kompresoru
2. Přerušený obvod elektrické
kabeláže kompresoru.
1. Nesprávné nastavení vodního
ventilu.
2. Přetížení jednotky
Zkontrolovat elektrické napájení
Znečištěné vodní potrubí nebo zanesený filtr.Vyčistit
filtr.
Zkontrolovat
kabely
elektrického
zapojení
kompresoru.
Zkontrolovat kabely kompresoru.
Nastavit vodní ventil.
Zvolit výkonnější jednotku.
1. Topení v létě
Přepnout do režimu chlazení
2. Chlazení v zimě
Přepnout do režimu vytápění.
12.2 Poruchové kódy
Kód
Porucha
Kód
Porucha
E0
Porucha způsobená nesprávným průtokem
vody
Nesprávný sled fází
P0
Nadproudová ochrana
P1
Aktivace vysokotlaké ochrany
Porucha komunikace mezi venkovní
jednotkou a vnitřním výměníkem
Porucha nebo nesprává poloha čidla
vratné vody
P2
Aktivace nízkotlaké ochrany
P3
Teplota odtahového vzduchu
E4
Porucha čidla venkovní teploty
P4
Aktivace ochrany – velký rozdíl mezi teplotou vody na
vstupu a výstupu.
E5
Porucha teplotního čidla výstupu vody.
P5
Vysoká teplota kondenzátoru.
E6
Porucha teplotního čidla kondenzátoru (A
nebo B)
P6
Nízkoteplotní ochrana deskového výměníku
E7
Porucha čidla č. 1 deskového výměníku
Pb
Protimrazová ochrana systému
E1
E2
E3
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E8
Porucha čidla č. 2 deskového výměníku
E9
Poruchový stav čidla teploty na výtlačném
potrubí digital kompresoru (na dálkovém
ovladači se zobrazí E4)
P8
Teplotní ochrana vody na vstupu (system by měl být min.
3× za hodinu pod napětím) na dálkovém ovladači se
zobrazí P4
E0: Porucha průtoku vody
LED zobrazuje E0
Ano
Prověřit správnost chodu čerpadla a
případnou závadu odstranit.
Krok 1: Čerpadlo vykazuje závadu
Ne
Ano
Zkontrolovat spínač a event vyměnit nebo
opravit.
Krok 2: Porucha spínače průtoku
Ne
Ano
Krok 3: Potrubí vody je ucpané.
Zkontrolovat potrubní systém,
vyčistit filtr.
Ne
Ano
Krok 4: Systém je zavzdušněn.
Odvzdušnit
Ne
Ano
Krok 5: Zkontrolovat dostatečný průtok systémem.
Zkontrolovat vodní systém
popř. nastavit čerpadlo
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E1: Aktivace ochrany sledu fází
LED zobrazuje E1
Ano
Krok 1: Zkontrolovat,zda je jednotka správně zapojena podle sledu
fází
“Přehodit” fáze
Ne
Ano
Krok 2: Proměřit jednotlivé faze a v případě absence jedné z fází
zkontrolovat hlavní přívod
Zkontrolovat hlavní zdroj a
příslušné kabely
E2: Nesprávná komunikace mezi vnitřní a venkovní jednotkou
LED zobrazuje E2
Ano
Upravit zapojení
Krok 1: Zkontrolovat správné zapojení kabelového ovladače –
nesprávné zapojení, uvolněný kabel ze svorky,přerušený kabel atd
Ne
Ano
Krok 2: kontrola spojitosti komunikačního kabele
Vyměnit kabel
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E3: Porucha teplotního čidla vratné vody
LED zobrazuje E3
Ano
Krok 1: Zkontrolovat zapojení čidla vratné vody
Správně zapojit
Ne
Ano
Krok 2: Zkontrolovat správnost činnosti čidla (podle odporových
charakteristik – viz tabulka)
Vyměnit čidlo
E4: Porucha čidla teploty venkovního vzduchu
LED zobrazuje E4
Ano
Krok 1: Zkontrolovat správné zapojení čidla
Správně zapojit čidlo
Ne
Ano
Krok 2: Zkontrolovat správnost činnosti čidla (podle odporových
charakteristik – viz tabulka)
Vyměnit čidlo
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E5: Porucha čidla výstupní vody
LED zobrazuje E5
Ano
Krok 1: Zkontrolovat správné zapojení čidla
Správně zapojit čidlo
Ne
Ano
Vyměnit čidlo výstupní vody
Krok 2: Zkontrolovat správnost činnosti čidla (podle odporových
charakteristik – viz tabulka)
E6: Porucha čidla kondenzátoru (A nebo B)
LED zobrazuje E6
Ano
Krok 1: Zkontrolovat správné zapojení čidla (A nebo B )
Správně zapojit čidlo
Ne
Ano
Krok 2: Zkontrolovat správnost činnosti čidla (podle odporových
charakteristik – viz tabulka) – A nebo B
Vyměnit čidlo kondenzátoru (A
nebo B)
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E7: Porucha teplotního čidla 1 deskového výměníku
LED zobrazuje E7
ANO
Krok 1: Zkontrolovat správné připojení teplotního čidla 1 výměníku
Správně zapojit
NE
ANO
Krok 2: Zkontrolovat správnost činnosti teplotního čidla 1 (podle
odporových charakteristik – viz tabulka)
Vyměnit teplotní čidlo deskového
výměníku 1
E8: Porucha teplotního čidla 2 deskového výměníku
LED zobrazuje E8
ANO
Krok 1: Zkontrolovat správné připojení teplotního čidla 2 výměníku
Správně zapojit
NE
ANO
Krok 2: Zkontrolovat správnost činnosti teplotního čidla 2 (podle
odporových charakteristik – viz tabulka)
Vyměnit teplotní čidlo deskového
výměníku 2
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E9: Porucha teplotního čidla na výtlaku z kompresoru (zobrazení na ovladači E4)
LED zobrazuje E9
Ano
Krok 1 : zkontrolovat,zda na výfuku vzduchu z jednotky
nejsou překážky nebo nečistoty
Vyčistit výměník a zajistit průtok vzduchu
výměníkem
Ne
No
Ano
Vyčistit výměník (kondenzátor)
Krok 2: Zkontrolovat stav znečištění lamel výměníku
Ne
Ano
Zastínit venkovní jednotku
Krok 3 : zkontrolovat teplotu venkovního prostředí
Ne
Ano
Krok 4 : zkontrolovat množství oběhové vody (režim vytápění)
Zkontrolovat systém rozvodu vody a
popř nastavit
Ne
Ano
Krok 5 : zkontrolovat množství chladiva v systému-není-li
systém přeplněn.
Snížit objem chladiva
Ne
Krok 6 : kontrolovat teplotu venkovního prostředí –není-li moc
vysoká (režim chlazení)
Ano
Nastavit režim chodu venkovní jednotky resp.
Upravit objemový průtok vody
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P0: Nadproudová ochrana
LED zobrazuje P0
Ano
Opravit (???) nebo VYMĚNIT
Krok 1 : zkontrolovat stav kompresoru –vinutí
Ne
Ano
Krok 2 : prověřit kontakty zapojení
Zkontrolovat a opravit
nasazení kontaktů
Ne
Yes
Krok 3 : prověřit event fluktuaci napětí v síti
P1: Aktivace vysokotlaké ochrany
LED zobrazuje P1
Upravit elektrické napájení
vedení
a
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Aktivace vysokotlaké ochrany
Ne
Krok 1: zapojení vysokotlaké ochrany
Správně zapojit
Ano
Krok 2 : zkontrolovat funkci a správnou reakci vysokotlaké
ochrany
Ano
Kontrola : vyzkratovat
prověřit,zda systém běží
kabely
vysokotlaké
ochrany
a
Vyměnit vysokotlakou ochranu
Ne
Ano
Replace air exhaust temperature controller
Judge 3: Whether the air exhaust temperature controller gets faulty
No
Check whether the refrigerant system is ok
Ano
Stop the unit
Judge 4: Check whether the outdoor ambient temperature is too high
Ne
Ano
Make the outdoor unit ventilate well
Judge 5: Check whether the outdoor unit is bad ventilation
Ne
Ano
Clean the heat exchanger
Judge 6: Check whether the heat exchanger is dirty
No
Yes
Judge 6: Check whether the refrigerant pipe is blocked
Replace outdoor main board
No
Drop refrigerant, then use the high pressure
nitrogen or refrigerant to blow pipe, vacuumize
and add the refrigerant again
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P2: Aktivace nízkotlaké ochrany
LED zobrazuje P2
Aktivace nízkotlaké ochrany
Judge 1: The wiring between the low pressure switch and main control
board is connected well or correctly
Ne
Connect it well
Yes
Judge 2: Whether the low pressure switch is broken
Yes
Validate: Short connect the low pressure switch socket, check
whether the system can run normally
Replace low pressure switch
No
Check whether the refrigerant system is ok
Judge 3: Check whether the outdoor ambient temperature is too low
No
Judge 4: The refrigerant of the system is leakage
Validate: Connect the pressure gauge to the gauge joint of the
system, check whether the pressure is lower than 0.15MPa
Yes
Leak hunting: charge nitrogen or refrigerant to
the system, if the leakage is serious, there will
be distinct gas leakage “cici” sound; if the
leakage is little, use the suds(mixture of water
and abluent is also ok, if it can make bubble) or
electronic leak detector.
No
Yes
Judge 5: The refrigerant pipe is blocked
No
Replace outdoor
main board
P3: Discharge air temperature
protection
Drop refrigerant, then use the high pressure
nitrogen or refrigerant to blow pipe, vacuumize
and add the refrigerant again
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Refer to the E9 to solve the problem
P4: Aktivace ochrany – velká diference Tst a Tvýst
LED zobrazuje P4
Yes
Replace the temperature-sensitive kits
Judge 1: Check whether inlet–outlet water temperaturesensitive kits gets faulty
No
Yes
Judge 2: Check whether it is in bad contact with the inlet
and outlet water pipe
P5: Condenser high temperature protection
Fix it well
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LED indicates P5
Yes
Add sunshade facilities.
Judge 1: Check whether outdoor ambient temperature is too high.
compressor motor gets faulty.
No
Yes
Judge 2: Check whether the outdoor unit ‘s ventilation is bad.
Check if there are sundries blocking the
ventilation and clear them to make good
ventilation
No
Yes
Judge 3: Check whether the outdoor condenser coil pipe gets
dirty.
P6: Plate heat exchanger low temperature protection
LED indicates P6
Yes
Clean the condenser.
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Replace the temperature-sensitive
kit
Judge 1: Check whether the temperature-sensitive kit at the plate
heat exchanger side gets faulty,
No
Yes
Clean the water side heat exchanger or
pipe
Judge 2: The heat exchange of water side is insufficient
No
Yes
Refill water periodically
Judge 3: Check whether the circulation water is insufficient
No
Yes
Judge 4: Check whether the FCU are not started.
Pb: System Anti-frozen protection
LED indicates Pb
Start the FCU
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Yes
Check the water system and make
adjustment.
Judge 1: Check whether the circulation water is insufficient
No
Yes
Replace the temperature sensor.
Judge 2: Check whether the temperature sensor is abnormal
No
Yes
Reduce the refrigerant.
Judge 3: Check whether the refrigerant is charged too much
No
Judge 4: Check whether the ambient temperature is too low (in
cooling mode).
Yes
Adjust outdoor fan and increase the
outdoor air flow.
P8: Inlet temperature protection (three times in one hour and system should be powered on again) At this
time, the wired controller displays P4
-----Refer to the P4 to solve the problem
Part 3
Installation
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1. General Information………………………………………
2. Description of Standard Unit……………………………
3. Installation…………………………………………………
4. Hydraulic Connection……………………………………
5. Electrical Connection……………………………………
6. Maintenance…………………………………………………
1. General Information
General warning
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KLÍMA, s.r.o.
1. These units have been designed to chill and heat water and must be used in applications compatible
with their performance characteristics; these appliances are designed for residential or similar
applications.
2. Incorrect installation, regulation and maintenance or improper use absolves the manufacturer from all
liability, whether contractual or otherwise, for damage to people, animals or things. Only those
applications specifically indicated in this list are permitted.
3. Read this manual carefully. All work must be carried out by qualified personnel in conformity with
legislation in force in the country concerned.
4. The guarantee is invalidated if the above instructions are not respected and if the unit is started up for
the first time without the presence of personnel authorized by the Company (where specified in the
supply contract) who should draw up a “start-up” report.
5. The documentation supplied with the unit must be consigned to the owner who should keep it carefully
for future consultation in the event of maintenance or service.
6. All repair or maintenance work must be carried out by the Company’s Technical Service or qualified
personnel following the instructions in this manual. The air-conditioner must under no circumstances be
modified or tampered with as this may create situations of risk. Failure to observe this condition
absolves the manufacturer of all liability for resulting damage.
Fundamental safety rules
Prohibition
This appliance is not intended for use by persons (including children) with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a person responsible for their safety.
Do not touch the unit with bare feet or with wet or damp parts of the body.
Do not carry out cleaning operations without first disconnecting the system from the electricity supply.
Do not modify safety or regulation devices without authorization and instructions from the manufacture.
Do not pull, detach or twist the electrical cables coming from the unit , even when disconnected from the
mains electricity supply.
Do not open doors or panels providing access to the internal parts of the unit without first ensuring that the
mains switch is in the off position.
Do not introduce pointed objects through the air intake and outlet grills.
Do not dispose of, abandon or leave within reach of children packaging materials (cardboard, staples, plastic
bags, etc.) as they may represent a hazard.
1. The chiller appliances are supplied without the main switch. The power supply to the unit must be
disconnected using a suitable main switch that must be supplied and installed by the installer.
2. Respect safety distances between the unit and other equipment or structures. Guarantee adequate
space for access to the unit for maintenance and/or service operations;
Power supply: the cross section of the electrical cables must be adequate for the power of the unit and
the power supply voltage must correspond with the value indicated on the respective units. All units
must be earthed in conformity with legislation in force in the country concerned.
3. Hydraulic connections should be carried out as indicated in the instructions to guarantee correct
operation of the unit. Empty the water circuit or add glycol if the unit is not used during the winter.
Handle the unit with the utmost care to avoid damage.
2. Description of Standard Unit
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These air cooled reverse-cycle chillers with axial-flow fans operate with refrigerant fluid and are suitable for
outdoor installation. They are factory tested and on site installation is limited to water and electrical
connections.
Structure:
Panels and base are made from galvanized steel plate painted with epoxy powder to ensure total
resistance
to atmospheric agents. Condensate collection pan as standard.
Compressors:
Digital scroll compressor with crankcase heater and thermal cut-out.
Evaporator:
AISI 316 stainless steel plate type evaporator complete with electric heater and differential pressure switch.
Casing lined with anti-condensate closed cell neoprene cladding.
Pump:
The units feature a pump with the moving parts in contact with the water made from corrosion resistant
materials, extra wear ring on the impeller, built-in capacitor for high starting torque and automatic venting of
impeller chamber.
Pump assembly:
Pump assembly with expansion tank, auto water replenishing assembly, pump.
Condensing coil:
Made from copper tubes and high surface area aluminum fins. Condensing coil protection grills as
standard.
Fans:
Axial-flow fans. Six-pole electric motor with built-in thermal cut-out. Housed in aerodynamic tubes with
accident prevention grill. Device for operation with low outside air temperatures: continuous fan rotation
speed control via condensing temperatures transducer.
Power and control electrical panel:
Power and control electrical panel constructed in accordance with IEC 204-1/EN60335-2-40, complete with
compressor contactor. Control via “HSW7” control panel.
Emergency stop pushbuttons:
In case system crisis is occur (e.g: Compressor out of control ), press the emergency stop pushbuttons at
once, and turn it clockwise, until crisis is removed.
Optional accessories:
- Removable metal mesh filter.
- Remote keyboard kit.
The above accessories are optional. Consult the relative documentation for assembly instructions and
technical data.
Venkovní jednotka
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12 14 16kW
Vnitřní hydronická jednotka
3. Installation
3.1 Choice of installation site
Before installing the unit, agree with the customer the site where it will be installed, taking the following
points into consideration:
- check that the fixing points are adequate to support the weight of the unit;
- pay scrupulous respect to safety distances between the unit and other equipment or structures to ensure
that air entering the unit and discharged by the fans is free to circulate.
3.2 Positioning
Before handling the unit, check the capacity of the lifting equipment used, respecting the instructions on the
packaging. To move the unit in the horizontal, make appropriate use of a lift truck or similar, bearing in mind
the weight distribution of the unit. To lift the unit, insert tubes long enough to allow positioning of the lifting
slings and safety pins in the feet on the unit.
To avoid the slings damaging the unit, place protection between the slings and the unit. Position the unit in
the site indicated by the customer. Place either a layer of rubber (min. thickness 10 mm) or vibration
damper feet (optional) between the base and support surface. Fix the unit, making sure it is level and that
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there is easy access to hydraulic and electrical components. If the site of installation is exposed to strong
winds, fix the unit adequately to the support surface using tie rods if necessary. If a heat pump unit is being
installed, make sure the condensate is drained using the drain hose supplied as standard. Prevent leaves,
branches or snow from accumulating around the unit. These could reduce the efficiency of the unit.
3.3 Installation of outdoor unit
3.3.1 Installation space
1) At least 600mm distance should be left between outdoor units:
2) Distance between foot screws is shown below:
3.3.2 Refrigerant Piping
Note:
1. Refrigerant piping connection is on the right side of outdoor unit.
2. The piping connects to refrigerant piping connection.
3. Install the refrigerant piping towards left, right or back.
4. Refer to system identifiers in valve installation board for corresponding connections of indoor units.
a. Choose the sizes of refrigerant piping: φ9.5+φ19
b. Connection: refer to connection of refrigerant piping
c. Length and height drop permitted of refrigerant piping
Maximum length of piping (L)
Maximum height drop
(Height drop between water pump container and
outdoor unit H)
10m
Outdoor unit (up)
5m
Outdoor unit (down)
5m
d. Remove dirt or water in the piping
● Make
sure there is no any dirt or water in the piping before connecting it to the outdoor unit.
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● Please
clean the piping with high-pressure nitrogen rather than refrigerant of outdoor unit.
e. Vacuuming with vacuum pump
● Please vacuum with vacuum pump.
● Vacuuming should be done from the gas side.
f. Open all valves
g. Refrigerant volume to be added
Calculate the volume according to the diameter and the length of the liquid side piping between
outdoor unit and water pump container. This unit has been charged refrigerant for 5m piping, the
refrigerant volume to be added is based on the following table:
Piping on liquid side
Method
Refrigerant volume to be added
<5m
Use refrigerant in outdoor unit
—
≥5m
Use vacuum pump or refrigerant container
0.065kg
(length of piping -5m)
Expel the air
1. Flaring
Cut a pipe with a pipe cutter.
Insert a flare nut into a pipe and flare the pipe.
2. Fasten the nuts
Put the connecting tubing at the proper position, wrench the nuts with hands then fasten it with a wrench.
Caution
Too large torque will harm the bellmouthing and too small will cause leakage. Please determine the torque
according to the table below:
Pipe gauge
Tightening torque
Φ6.4
15～16N.m
(153～163kgf.cm)
25～26N.m
(255～265kgf.cm)
Φ9.5
Φ12.7
Φ15.9
Φ19.1
Flare dimension A
Min (mm) Max
8.3
8.7
12.0
12.4
35～36N.m
(357～367kgf.cm)
45～47N.m
(459～480kgf.cm)
15.4
15.8
18.6
19.0
65～67N.m
22.9
23.3
Flare shape
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(663～684kgf.cm)
3. How to expel the air
A. Expel the air with refrigerant in outdoor unit: connect the wiring between water pump container
and outdoor unit, refer to the example below:
1. Totally fasten the joint nut of stop valve B and nut C and D.
2. Loosen the joint nut of stop valve A a little.
3. For 3~5m s piping, turn the valve rod of B anticlockwise to 45°for about 6~7seconds. After the air is
expelled from A, fasten the joint nut of stop valve A. (Refer to former page for the torque)
4. Totally open the valve rods of stop valve A and B.
5. Totally fasten the valve bonnet.
B. Expel the air with vacuum pump (following procedures are for all the Lo-stop valve)
1. Connect the charging hose of the manifold valve with the charging inlet of the Lo-stop valve. (All the Histop valves should be closed)
2. Connect the connection of charge hose with vacuum pump.
3. Totally open the Lo-lever of the manifold valve.
4. Turn on the vacuum pump. First loosen the joint nut of Lo-stop valve a little to check whether the air
comes in (the noise of vacuum pump changes and the indicator of multi-meter turns to be above 0). Then
fasten the joint nut.
5. After vacuuming, close the Lo-lever of manifold valve and turn off vacuum pump. When doing vacuuming
for more than 15 minutes, please confirm that the indicator of multi-meter points to-1.0X10 5Pa(-76cmHg)
6. Totally open the Hi-stop valve and Lo-stop valve.
7. Remove the charge hose from the charging inlet of Lo-stop valve.
8. Fasten the valve bonnets on Hi-stop valve, Lo-stop valve and on the charging inlet of Lo-stop valve.
C. Expel air with refrigerant container
1. Connect the charge hose of refrigerant container with charging inlet of Lo-stop valve.
2. Fasten the joint nuts C, D and the joint nut of stop valve A.
3. Loosen the joint nut of stop valve B a little.
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4. Open the valve of refrigerant container, after the refrigerant air is expelled from joint nut on Hi-stope
valve side for
10~15 seconds, fasten the joint nut of stop valve B.
5. Remove the charge hose from the connection of Lo-stop valve and push the air valve core with a screw
driver to discharge the refrigerant from piping until there is no noise. Then put back the air valve core at
once in case the air goes into the system.
6. Remove the valve bonnet and totally open the stop valve B on high-pressure side and the valve rod on
low-pressure side of the outdoor unit, then fasten the valve bonnet.
7. Make sure to fasten the valve bonnets of both Hi-stop valve and Lo-stop valve.
3.4 Installation of water pump container
3.4.1 Installation space
Water pump container can be either laid on the floor or mounted on the wall with supporter. For correct
installation, places that are solid and flat are preferable. Please leave the space for installation and
maintenance.
Note: When the outdoor temperature is lower than that specified in working condition, the energy which air
conditioner provides can not be satisfied. To make up for the loss, it is suggested that users purchase a
auxiliary heater
3.4.2 Installation location
Please keep away from the following places:
● Such places where the temperature is high, water pump container can be installed outdoors. In other
places, please install it indoors, such as washroom and the places that prevents it from water.
● There is combustible gas leakage.
● There is much salty ingredients.
● There is caustic gas such sulfide in the air. (The copper tubes and welding parts will be rusted and
damaged, causing refrigerant to leak.)
● There is mineral oil, cooking oil or gasoline. (This may cause damage to plastic parts, looseness of
components and leakage.
● A place that is too weak to bear the weight of water pump container.
● There is equipment that produces electromagnetic wave. (It will disturb the controlling system of air
conditioner.)
3.4.3 Install the refrigerant piping
● Do not let air, dust, moisture or other impurities fall in the piping system during installation.
● Fix the outdoor unit and water pump container before installing the refrigerant piping.
● The refrigerant piping should not be installed until you check that the H-stop valve and Lo-stop valve or
outdoor unit have been closed.
3.4.4 The procedures for connecting pipe
1) Connect the water inlets and water outlets of water pump container and indoor unit with soft connection
and charge water into the pipe to check whether there is leakage. Then connect the outdoor unit piping.
Bend the piping carefully and do not damage them.
2) The stop valve of the outdoor unit should be closed absolutely (as original state). Every time you connect
it, remove the nut of stop valve then connect the flaring pipe immediately (with 5 minutes). Before
connecting, use refrigerant to expel the air in the pipe.
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3) Connect the Hi-stop valve and Lo-stop valve of A and B system in outdoor unit to water pump container
with piping. Make sure that the connection of identifier A and B on both outdoor unit and water pump
container should be corresponding.
4) The flexible pipe should be used on water pump side.
(The bending angle should not exceed 90°. The bending part is preferably in the middle of the pipe, the
bigger the bending radius, the better it is. Do not bend the pipe more than 3 times.)
5) Bending the connecting pipe of thin wall.
● Cut out a desired concave at the bending part of the insulating pipe.
● To avoid distortion or damage, please bend the pipe at its biggest radius.
● Use bender to get a pipe with small radius.
Note: Make sure to use insulation material for the copper tube which you purchase by yourself.
4. Hydraulic Connection
The choice and installation of components is the responsibility of the installer who should follow good
working practice and current legislation. Before connecting the pipes, make sure they do not contain
stones,
sand, rust, dross or other foreign bodies which might damage the unit. Construction of a bypass is
recommended to enable the pipes to be washed through without having to disconnect the unit (see drain
valves). The connection piping should be supported in such a way as to avoid it weighing on the unit. It is
recommended that the following devices are installed in the water circuit of the evaporator:
A hydraulic safety valve shall be mounted in water system, which should open constantly.
1. Two pressure gauges with a suitable scale (inlet and outlet).
2 . Two vibration damper joints (inlet and outlet).
3. Two gate valves (normal inlet and calibrating in outlet)
4. A flow switch (inlet) or a differential pressure switch (inlet-outlet).
5. Two thermometers (inlet and outlet).
6. An inlet filter as close as possible to the evaporator and positioned to allow easy access for routine
maintenance.
7. An energy-saving water tank.
8. Additional pump.
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No
Name
No
Name
No
Name
1
Pressure gauge
6
Temperature sensor
11
Mesh filter
2
Vibration damper joint
7
Pump
12
Auto-water replenishing
3
Gate valve
8
Safety valv e
13
Plate heat exchanger
4
Calibrating valve
9
Air vent
14
Drain/chemical washing valve
5
Flow switch
10
Expansion tank
15
Main unit
1) The chillers must be provided with a filling/top-up system connected to the return line and a drain cock
in the lowest part of the installation. Installations containing anti-freeze or covered by specific legislation
must be fitted with hydraulic disconnections.
2) The manufacturer is not liable for obstruction, breakage or noise resulting from the failure to install filters
or vibration dampers. Particular types of water used for filling or topping up must be treated with
appropriate treatment systems. For reference values, see the table.
PH
Electrical conductivity
Chlorine ions
Sulphuric acid ions
Total iron
Alkalinity M
Total hardness
Sulphur ions
Ammonia ions
Silicon ions
6-8
less than 200 mV/cm (25°C )
less than 50 ppm
less than 50 ppm
less than 0.3 ppm
less than 50 ppm
less than 50 ppm
none
none
less than 30 ppm
Filling the installation
- Before filling, check that the installation drain cock is closed.
- Open all installation and terminal air vents.
- Open the gate valves.
- Begin filling, slowly opening the water filling cock outside the unit
- When water begins to leak out of the terminal air vent valves, close them and continue filling until the
pressure gauge indicates a pressure of 1.5 bars.
Emptying the installation
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- Before emptying, place the mains switch in the “off”position
- Make sure the installation fill/top-up water cock is closed
- Open the drain cock outside the unit and all the installation and terminal air vent valves.
Size and position of connections
Model
Water inlet/outlet (Ø)
Auto-water replenishing(Ø)
Security discharge(Ø)
Mesh filter (Ø )
Air vent (Ø )
MGA-D10/N1
R5/4”
R1/2”
G1/2”
R5/4”
G3/8”
MGA-D12/N1
R5/4”
R1/2”
G1/2”
R5/4”
G3/8”
MGA-D14/SN1
R5/4”
R1/2”
G1/2”
R5/4”
G3/8”
MGA-D16/SN1
R5/4”
R1/2”
G1/2”
R5/4”
G3/8”
a) The installation must be filled to a pressure of between 1 and 2 bars.
b) It is recommended that this operation be repeated after the unit has been operating for a number of
hours. The pressure of the installation should be checked regularly and if it drops below 1 bar, the water
content should be topped-up.
c) Check the hydraulic tightness of joints.
d) If the fluid in the circuit contains anti-freeze, it should not be allowed to drain freely as it is pollutant.
e) It should be collected for possible reuse.
f) When draining after heat pump operation, take care as the water may be hot (up to 50℃).
5. Electrical Connection
5.1 Notice
The split mini chillers leave the factory already wired , and require the installation of an omnipolar thermal
overload switch, a lockable mains disconnecting switch for the connection to the mains power supply , and
the connection of the flow switch to the corresponding terminals . All the above operations must be carried
out by qualified personnel in compliance with the legislation in force.
For all electrical work, refer to the electrical wiring diagrams in this manual. You are also recommended to
check:
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That the characteristics of the mains electricity supply are adequate for the absorptions indicated in the
electrical characteristics table below, also bearing in mind the possible use of other equipment at the same
time.
Power to the unit must be turned on only after installation work (hydraulic and electrical) has been
completed.
All electrical connections must be carried out by qualified personnel in accordance with legislation
in force in the country concerned.
Respect instructions for connecting phase, neutral and earth conductors.
The power line should be fitted upstream with a suitable device to protect against short-circuits and
leakage to earth, isolating the installation from other equipment.
Voltage must be within a tolerance of ±10% of the rated power supply voltage for the unit (for three
phase units, the unbalance between the phases must not exceed 3%).If these parameters are not
respected, contact the electricity supply company.
For electrical connections, use double insulation cable in conformity with current legislation in the
country concerned
An omnipolar thermal overload switch and a lockable mains disconnecting switch, in compliance
with the CEI-EN standards (contact opening of at least 3mm), with adequate switching and residual
current protection capacity based on the electrical data table shown below, must be installed as
near as possible to the appliance
The devices on the unit must be lockable. An efficient earth connection is obligatory. Failure to
earth the appliance absolves the manufacturer of all liability for damage.
In the case of three phase units, ensure the phases are connected correctly.
5.2 Electrical Panel
The electrical panel is located inside the unit at the top of the technical compartment where the various
components of the refrigerant circuit are also to be found.
To access the electrical panel, remove the front panel of the unit by undoing the screws.
Electrical Panel Layout
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No
1
2
3
Name
Power control board
Fan capacitor
Compressor capacitor
No
4
5
6
Name
Terminal board
Emergency switch
Compressor contactor
No
7
Name
Transformer
5.4 Outdoor unit wiring chart
5.5 Outdoor unit wiring specifications
Model
10/12kW
14/16kW
10/12/14/16kW
Name
Quantity
Overall power cord
Overall power cord
Water-flow controlling wire
1
1
1
Specifications
(for reference)
RVV-300/500 3×6.0mm2
RVV-450/750 5×4.0 mm2
AWG24(7-core shielded wire)
Temp. Sensor signal wire
1
RVV-300/500 3×1.0 mm2
Notes
(purchased by customers)
For outdoor unit
For outdoor unit
Between outdoor unit and
water pump container
Between outdoor unit and
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(shielded wire)
Water pump power cord
Auxiliary heater controlling
wire
Controlling wire for
Central & wire controller
auxiliary heater
1
RVV-300/500 3×1.0 mm
1
RVV-300/500 3×1.0 mm2
1
RVVP-300/300 2×0.5 mm2
(2-core shielded wire)
2
Between outdoor unit and
water pump container
Between outdoor unit and
auxiliary heater
Between outdoor unit and
central& wire controller
shorter than 120m.
6. Maintenance
6.1 Shut down for long periods
If it is previewed not to use the machine for long periods, after deactivating the chiller:
● Make sure the remote switch SA1 is in the "OFF" position, or alternatively disconnect the unit from the
power supply.
● Make sure the remote keyboard (if present) is set to “OFF”.
● Position QF and QS on OFF
● Deactivate the indoor terminal units by placing the switch of each unit in the “OFF” position.
● Close the water valves.
Note:
If there is a possibility that the outside temperature may drop below zero, there is the risk of freezing. The
water circuit must be emptied and shut off power(when draining after heat pump operation take care as the
water may be hot) or antifreeze must be added in the proportion recommended by the manufacture.
6.2 Routine maintenance
Never perform any cleaning operations before having disconnected the unit from the mains power supply.
If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly
qualified person in order to avoid a hazard.
Regular maintenance is fundamental to maintain the efficiency of the unit both in terms of operation and
energy consumption. The Technical Assistance Service maintenance plan must be observed, with an
annual service which includes the following operations and checks:
● Filling of the water circuit.
● Presence of air bubbles in the water circuit.
● Efficiency of safety devices.
● Power supply voltage.
● Power input.
● Tightness of electrical and hydraulic connections.
● Condition of the compressor contactor.
● Efficiency of the plate heat exchanger heater.
● Checking of operating pressure, superheating and subcooling.
● Efficiency of compressor heater.
● Cleaning of finned coil (*).
● Cleaning of fan grills.
● Cleaning of condensate drain pan (if installed).
(*) for “Heat pump” appliances, the checks are to be performed quarterly.
● For units installed near the sea, the intervals between maintenance should be halved.
6.3 Extraordinary maintenance
Never perform any cleaning operations before having disconnected the unit from the mains power supply.
6.3.1 Chemical washing
You are recommended to chemically wash the plate heat exchanger after every 3 years of operation.
6.3.2 Refrigerant gas content
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The chillers are filled R410A refrigerant gas and tested in the factory. In normal conditions, there should be
no need for the Technical Assistance Service to intervene to check the refrigerant gas. However, over time,
small leaks may develop at the joints leading to loss of refrigerant and draining of the circuit, causing the
unit to function poorly. In this case, the leaks of refrigerant circuit refilled. Proceed as follows:
● Empty and dry the entire refrigerant circuit using a vacuum pump connected to the low and high pressure
tap until the vacuometer reads about 10Pa. Wait a couple of minutes and check that this value does not
rise to more than 200Pa.
● Connect the refrigerant gas cylinder or a filling cylinder to the low pressure line pressure gauge
connection.
● Fill with the quantity of refrigerant gas indicated on the rating plate of the unit.
● Always check the superheating and subcooling values. In the nominal operating conditions for the
appliance, these should be between 5 and 10°C and between 4 and 8°C respectively.
● After a couple of hours of operation, check that the liquid indicator indicates circuit dry (dry-green)
Note:
1) In the event of partial leaks, the circuit must be completely emptied before being refilled
The R410A refrigerant must only be filled in the liquid state.
Operating conditions other than nominal conditions may produce considerably different values, Seal testing
or identification of leaks must only be carried out using R410A refrigerant gas, checking with a suitable leak
detector.
2) The use of a different refrigerant or oils may cause serious damage to the compressor.
Oxygen, acetylene or other inflammable or poisonous gas must never be used in the refrigerant circuit as
they may cause explosion or poisoning.
6.3.3 Disposal
Do not dispose this product as unsorted municipal waste. Collection of such waste separately for special
treatment is necessary. Do not dispose of electrical appliances as unsorted municipal waste, use separate
collection systems available. If electrical appliances are disposed of in landfills or dumps, hazardous
substances can leak into the groundwater and get into the food chain, damaging your health and wellbeing,
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Part 4
Control
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Wired Controller KJR-08B/BE
Name of keys on the wired controller and the keypad operation description:
1. ON/OFF button:
In the power off status, press this key and the startup indicator comes on, and the wire controller enters the
startup status and keeps the current set information such as temperature value, timing. In the startup
status, press this button once, and the startup indicator goes off and transmits the shutdown information.
2. Operation mode button:
In the power off status, press this button to select the operation mode. This function is invalid at power on
status.
Modes shifted sequence as follows:
(1).Mode of KJR-08B/BE air cooled modular wire controller:
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(2).Mode of KJR-08B/BE(C) air cooled modular wire controller:
3. MANUAL/AUTO button
Press this button; you could select [MANUAL/AUTO] these 2 modes. When select Manual mode, you could
increase or decrease the online units via [PAGEUP/TEMP+] and [PAGEDOWN/TEMP-].
4. QUERY button
Press this button to query the status information of outdoor units 0~15(Outdoor unit 0 by default). After
entering the query status, use [ADDRESS+] and [ADDRESS-] keys to query information of the previous or
next outdoor unit. After selecting to query a specific outdoor unit, use the [PAGEDOWN/TEMP+] and
[PAGEDOWN/TEMP-] keys to query the status information of this outdoor unit. The query sequence is:
Outlet water temperature T1->Outdoor pipe temperature T3->Outdoor environment temperature T4>Setting temperature Ts->Current of compressor A and Current of compressor B -> Fault->Protection>Outlet water temperature T1.since there are many fault protection codes for the outdoor unit, the wire
controller only displays the two fault protection messages with the highest priority when you check the fault
protection information.
5. Heat button
For KJR-08B/CE, in the Heating Mode, press this key to startup forced auxiliary heating function, the icon is
displayed in LCD. When press the keys once again, this function is closedown. This function is invalid in
other mode. This button has no effect to KJR-08B/BE&KJR-08B/BE(C).
6 & 7 TIME ON/OFF button
Every time when you press [TIME ON] button, the HOUR and MINUTE of timing startup blink at a
frequency of 2Hz. They stop blinking when you adjust the hour and minute; and continue blinking 2
seconds after you stop adjustment. Press [TIME ON] key to select the timing HOUR for adjusting, and the
timing hour blinks at frequency of 2Hz. Use the [PAGEUP/TEMP+] and [PAGEDOWN/TEMP-] keys to
adjust the MINUTE. If you keep idle without adjustment operation within 8 seconds after entering the timing
setup status, the system will confirm the time setup and exit the timing setup status. Press [TIME OFF] key,
as per the above method to set close time.
Long press [TIME ON] button, you could cancel this function. Long press [TIME OFF] button, you could
cancel this function.
8. TEMP SET button
Setup the total water outlet temperature in cooling and heating mode. Setup tank or pool temperature in
water heating mode.
9. OK button
Once finished upon, press OK key, wire controller will delivery order to main unit.
10. ADDRESS+ button
Press this button at Check mode; when select the next modular, the operation status of the next modular
will display; if the current modular is 15# and the next one is 0#.
Press this button for add address at wire address setting mode. If the wire controller address is 15, press
this key will display the next address is 0.
11. ADDRESS- button
Press this button at query mode; when select the previous modular, the operation status of the previous
modular will display; if the current modular is 0#, and the previous one is 15#.
Press this button for minus address at wire address setting mode. If the wire controller address is 0, press
this key will display the next address is 15.
12 & 13 PAGEUP/DOWN (TEMP+/-) button
In manual mode, press these keys could add or minus the unit quantity.
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In the main page, press these keys could check the operation parameter of the unit.
In temperature setting page, add or minus the temperature setting.
In timing ON/OFF setting, press these keys to adjust the time of startup or closedown.
14. RESET button (Hidden)
Use a 1mm-diameter round stick to press this button, and the current setting will be cancelled and the
wire controller enters the reset status.
15. LOCK button (Hidden)
Use a 1mm-diameter round bar to lock the current setting. Press this button again to unlock.
16. ADDRESS SET button (Hidden)
The address of wire controller be set by press this button. The address range 0~15, therefore, 16 wire
controller could be parallel at most.
When there is only one wire controller, it is no necessary to execute this setting, because the address of
wire controller has been set to '0'(main wire controller) in the factory.
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Name and function description of LCD screen of wired controller :
Installation procedure:
1. The wiring procedure and principles are shown in the figure:
Note: Use PQE position connects with each other when several wire-controllers are parallel.
2. Power connection:
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Operation procedure of wired controller:
1. Press AUTO/MANUAL mode at shutdown status, you could select MANUAL or AUTO turn-on mode as
you want. The function is invalid at startup status.
In Manual mode, press [PAGEUP/TEMP+] or [PAGEDOWN/TEMP-] button for select your require online
unit quantity.
2. Press [TEMP SET], [PAGEUP/TEMP +], [PAGEDOWN/TEMP -] button, for select your require
temperature.
For KJR-08B/BE: Cooling range:5~17℃; Heating range:45~50℃.
For KJR-08B/BE(C): Cooling range:5~17℃.
3. Press [ON/OFF] button, running indicator of wire controller is light, unit is start to run, and display running
status at wire controller. Press this button once again, unit will stop running.
●Operation procedure of Time ON
1. Press [TIME ON] button adjust your require time by [PAGEUP/TEMP+] or [PAGEDOWN/TEMP-]
(MINUTE and HOUR could be shifted by this button). Use the same method to set Time off.
(Note: Time ON/OFF is relative time.)
●Operation procedure of disable the function of Time ON/OFF.
1. Long press [TIME ON] button, you could cancel this function. Long press [TIME OFF] button, you could
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cancel this function.
●Operation procedure of units information querying
1. Press [QUERY] entering Check status.
2. Press [ADDRESS+] or [ADDRESS-] button, select the unit you are wanted to query.
3. Press [PAGEUP/TEMP+)] or [PAGEDOWN/TEMP-] button to query the units information, which includes
outdoor ambient temperature T4, pipe temperature T3, setting temperature Ts, CEB out water temp. TB,
online quantity and compressor current, etc.
●Operation procedure of system information querying
1. Press [PAGEUP/TEMP+] or [PAGEDOWN/TEMP-] button in the main page, system information could be
queried.
●Operation procedure of water temperature setting
1. Press [TEMP SET] button of wire controller when background light is on.
2. Press [PAGEUP/TEMP+] or [PAGEDOWN/TEMP-] button select your require water temperature. Once
selected upon, temperature value will blinks a couple of seconds then confirm it.
3. KJR-08B/BE temperature range:
Cooling: 5~17℃
Heating: 45~50℃
KJR-08B/CE temperature range:
Cooling: 7~35℃
Heating: 45~50℃
Water heating: 20~55℃
KJR-08B/BE(C) temperature range:
Cooling: 5~17℃
●Fault alarm handing
When unit fails or the wire controller detects failure of communication with the outdoor units, the indicator
blinks. After all faults of the system and the wire controller are eliminated, the indicator stops blinking. The
fault indicator and the operation indicator share the same LCD.