Thermistor Connections To Main Base Board; Thermistor Well Diagram; Chilled Water Flow Switch Diagram - Carrier AQUASNAP 30RAP010-150 Controls, Start-Up, Operation, Service, And Troubleshooting

For recommended maintenance, check the sensor tip for
build-up every 6 months. Clean the tip with a soft cloth. If
5/8 in. HEX
1
1 RED
2
2 BLK
3
3 RED
4
4
BLK
5
5 BLU
6
6 BLU
1
7 RED
2
8
BLK
3
9
4
10
1
11 RED
2
12
BLK
J8
3
13 RED
4
14
BLK
1 B
15 RED
+
2 C
16
GRN
-
3
A
17 BLK
B
4
18 RED
+
C
5
19
GRN
-
6 A
BLK
20
7 B
21 RED
+
C
8
22 GRN
-
A
9
23 BLK
10
B
24 RED
+
11 C
25
GRN
12 -
A
BLK
26
LEGEND
ACCSY — Accessory
DPT — Discharge Pressure Transducer
LWT — Leaving Water Temperature Sensor
LVT — Low Voltage Terminal
OAT — Outdoor Air Temperature Sensor
RGT — Return Gas Temperature Sensor
SEN — Sensor Terminal Block
SPT — Space Temperature Sensor
Fig. 40 — Thermistor Connections to
Main Base Board, J8 Connector
6" MINIMUM
CLEARANCE FOR
THERMISTOR
REMOVAL
Fig. 39 — Thermistor Well
RGTA
RGTB
LVT
J12 T55
3 23
T-55
SEN
ACCSY
4 22
OAT
SPACE TEMPERATURE
ACCESSORY OR
DUAL CHILLER LWT
EVAPORATOR ENTERING
FLUID TEMP
EVAPORATOR LEAVING
FLUID TEMP
DPTB
SPTB
DPTA
SPTA
a30-4975
necessary, build-up (e.g., lime) can be removed with a common
vinegar cleansing agent.
1/4-18 NPT
4.2 in. (107 mm)
TORQUE WITH
WRENCH (SIZE 22 mm)
Fig. 41 — Chilled Water Flow Switch
58
0.87 in.
(22 mm)
a30-5238
0.30 in.
(7.7 mm)