74
Table 46B — 5K Thermistor Temperature (°C) vs Resistance/Voltage
Service Test —
Main power and control circuit power
must be on for Service Test.
The Service Test function is used to verify proper operation
of various devices within the chiller, such as condenser fan(s),
compressors, minimum load valve solenoid (if installed),
cooler pump(s) and remote alarm relay. This is helpful during
the start-up procedure to determine if devices are installed
correctly. See Fig. 37-41 for 30RB wiring diagrams.
To use the Service Test mode, the Enable/Off/Remote Con-
tact switch must be in the OFF position. Use the display keys to
move to the Service Test mode. The items are described in the
Service Test table. There are two sub-modes available.
Service
Test
T.REQ
allows for manual control of the compressors
and minimum load control. In this mode the compressors will
operate only on command. The capacity control and head pres-
sure control algorithms will be active. The condenser fans will
operate along with the EXVs. There must be a load on the
chiller of operate for an extended period of time. All circuit
safeties will be honored during the test.
Service Test
QUIC
allows for test of EXVs, condenser fans, pumps, low ambient
head pressure control speed control, crankcase and cooler heat-
ers, and status points (alarm relays, running status and chiller
capacity). This mode allows for the testing of non-refrigeration
items. If there are no keys pressed for 5 minutes, the active test
mode will be disabled.
To enter the Manual Control mode, the Enable/Off/Remote
Contact switch must be in the OFF position. Move the LED to
the Service Test mode. Press
to access
TEST
.
Press
to access
T.REQ
.
Press
and the display
will show
OFF
. Press
and
OFF
will flash. Enter the
password if required. Use either arrow key to change the
TEMP
(C)
RESISTANCE
(Ohms)
–32
100,260
–31
94,165
–30
88,480
–29
83,170
–28
78,125
–27
73,580
–26
69,250
–25
65,205
–24
61,420
–23
57,875
–22
54,555
–21
51,450
–20
48,536
–19
45,807
–18
43,247
–17
40,845
–16
38,592
–15
38,476
–14
34,489
–13
32,621
–12
30,866
–11
29,216
–10
27,633
–9
26,202
–8
24,827
–7
23,532
–6
22,313
–5
21,163
–4
20,079
–3
19,058
–2
18,094
–1
17,184
0
16,325
1
15,515
2
14,749
3
14,026
4
13,342
5
12,696
6
12,085
7
11,506
8
10,959
9
10,441
10
9,949
11
9,485
12
9,044
13
8,627
14
8,231
TEMP
(C)
RESISTANCE
(Ohms)
15
7,855
16
7,499
17
7,161
18
6,840
19
6,536
20
6,246
21
5,971
22
5,710
23
5,461
24
5,225
25
5,000
26
4,786
27
4,583
28
4,389
29
4,204
30
4,028
31
3,861
32
3,701
33
3,549
34
3,404
35
3,266
36
3,134
37
3,008
38
2,888
39
2,773
40
2,663
41
2,559
42
2,459
43
2,363
44
2,272
45
2,184
46
2,101
47
2,021
48
1,944
49
1,871
50
1,801
51
1,734
52
1,670
53
1,609
54
1,550
55
1,493
56
1,439
57
1,387
58
1,337
59
1,290
60
1,244
61
1,200
TEMP
(C)
RESISTANCE
(Ohms)
62
1,158
63
1,118
64
1,079
65
1,041
66
1,006
67
971
68
938
69
906
70
876
71
836
72
805
73
775
74
747
75
719
76
693
77
669
78
645
79
623
80
602
81
583
82
564
83
547
84
531
85
516
86
502
87
489
88
477
89
466
90
456
91
446
92
436
93
427
94
419
95
410
96
402
97
393
98
385
99
376
100
367
101
357
102
346
103
335
104
324
105
312
106
299
107
285
Fig. 36 — Typical Remote Space Temperature Sensor Wiring
7
8
TB6
SEN
SEN
SENSOR
ENTER
ENTER
ENTER
ENTER
Содержание AQUASNAP 30RBA315
Страница 77: ...77 Fig 37 Control Schematic 30RB060 080 a30 4619...
Страница 78: ...78 Fig 38 Control Schematic 30RB090 150 a30 4620...
Страница 79: ...79 Fig 39 Control Schematic 30RB160 190 a30 4622...
Страница 80: ...80 Fig 40 Control Schematic 30RB210 300 a30 4622...
Страница 81: ...81 Fig 41 Heat Reclaim Control Schematic a30 4622...