Carrier AquaSnap 61WG Series - Characteristics of R-410 A; Electrical Maintenance; Tightening Torques for the Main Electrical Connections; Tightening Torques for the Main Bolts and Screws

67
20.8 - Characteristics of R-410A
Saturated temperatures (°C) based on the relative pressure (in
kPa)
Satur.
temp.
Relative
pressure
Satur.
temp.
Relative
pressure
Satur.
temp.
Relative
pressure
Satur.
temp.
Relative
pressure
-20
297
4
807
28
1687
52
3088
-19
312
5
835
29
1734
53
3161
-18
328
6
864
30
1781
54
3234
-17
345
7
894
31
1830
55
3310
-16
361
8
924
32
1880
56
3386
-15
379
9
956
33
1930
57
3464
-14
397
10
987
34
1981
58
3543
-13
415
11
1020
35
2034
59
3624
-12
434
12
1053
36
2087
60
3706
-11
453
13
1087
37
2142
61
3789
-10
473
14
1121
38
2197
62
3874
-9
493
15
1156
39
2253
63
3961
-8
514
16
1192
40
2311
64
4049
-7
535
17
1229
41
2369
65
4138
-6
557
18
1267
42
2429
66
4229
-5
579
19
1305
43
2490
67
4322
-4
602
20
1344
44
2551
68
4416
-3
626
21
1384
45
2614
69
4512
-2
650
22
1425
46
2678
70
4610
-1
674
23
1467
47
2744
0
700
24
1509
48
2810
1
726
26
1596
49
2878
2
752
25
1552
50
2947
3
779
27
1641
51
3017
20.9 - Electrical maintenance
When working on the unit comply with all safety precau-tions
described in section 1.3.
It is strongly recommended to change the unit fuses every 15000
operating hours or every three years.
It is recommended to verify that all electrical connections are tight:
- After the unit has been received at the moment of installation
and before the rst start-up
- One month after the first start-up,when the electrical
components have reached their nominal operating
temperatures
- Then regularly once a year.
20.10 - Tightening torques for the main
electrical connections
Component
Designation
in the unit
Value (N·m)
Screw (PE) customer connection M8 PE 14,5
Screw on switch inlet zones
Switch - MG 28904 QS_ 8
Tunnel terminal screw, compressor
contactor
Contactor LC1D12B7 KM
(1)
1,7
Contactor LC1D18B7 KM
(1)
1,7
Contactor LC1D25B7 KM
(1)
2,5
Tunnel terminal screw, compressor
circuit breaker
Circuit breaker 25507 QM
(1)
3,6
Circuit breaker 25508 QM
(1)
3,6
Circuit breaker 25509 QM
(1)
3,6
Tunnel terminal screw, control power
transformer
Transformer - ABL6TS16B TC 0,6
Compressor earth terminal in the
power wiring control box
M6 Gnd 5,5
Compressor earth connection
M8 Gnd 2,83
Tunnel terminal screw, pump
disconnect switch
Disconnect switch GV2ME08 QM_ 1,7
Disconnect switch GV2ME10 QM_ 1,7
Tunnel terminal screw, pump
contactor
Contactor LC1K0610B7 KM 0,8 to 1,3
Contactor LC1K09004B7 KM 0,8 to 1,3
Contactor LC1K0910B7 KM 0,8 to 1,3
Contactor LC1K0901B7 KM 0,8 to 1,3
Variable-frequency switch ATV21 GS 1,3
20.11 - Tightening torques for the main bolts and
screws
Screw type Used for Torque (N·m)
M8 nut BPHE
(1)
xing 15
M10 nut Compressor mounting 30
Oil nut Oil equalisation line 100
Taptite screw M6 Panel xing 7
H M6 screw Stauff clamps 10
(1) BPHE = Brazed plate heat exchanger
20 - MAINTENANCE