Carrier PIC 5+, Инструкции по установке, эксплуатации и обслуживанию

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(VFD not shown )
Fig 13
– Sensors, actuators location (end)
2.6.4 Temperature sensors:
The system uses temperature sensors to measure and control the temperatures in the unit. There are three types
of temperature sensors, 5K thermistor (standard), 10K thermistor and RTD (three wires) based on the IOB
channel configurations.
Wiring information (see chiller wiring diagram)
Temperature sensor Point Name Designation #IOB # Channel # Block # Terminal
Entering chilled water temperature ECW RT1 IOB 1 AI1 J16 1-5
Leaving chilled water temperature
LCW RT2 IOB 1
AI2 J16 2-6
Entering condenser water temperature
ECDW RT7 IOB 1
AI3 J16 3-7
Leaving condenser water temperature
LCDW RT8 IOB 1
AI4 J16 4-8
Evap. refrigerant liquid temperature
EVAP_T RT15 IOB 1
AI5 J15 6-12
Compressor Discharge temperature
DGT RT21 IOB 1
AI6 J15 5-11
Motor winding temperature 1 MTRW1 RT31C IOB 2
AI1 J16 1-5
1st stage Bearing Temp CBH1_T RT39C IOB 3
AI1 J16 1-5
2nd stage Bearing temp CBH2_T RT40C IOB 3
AI2 J16 2-6
Bearing Ref Supply Temp BRGI_T RT41 IOB 3
AI3 J16 3-7
The temperature sensor range is -40 ~ +118°C.
Table 1a
– Temperature sensors