Carrier HFC-134A installation instructions A23-1551, A23-1553

Models: HFC-134A

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1Condenser Pressure

2Evaporator Pressure

3Compressor Discharge Temperature

4Compressor Discharge Pressure

5Compressor Discharge High Pressure Switch

6Compressor Motor Winding Temperature (Hidden)

7Evaporator Refrigerant Liquid Temperature (Hidden)

8Condenser Liquid Temperature

9Condenser Liquid Flow (Optional)

10 — Inductor Temperature Switch

(Inside VFD Enclosure)

11 — VFD Rectifier Temperature

(Inside Power Module)

12 — VFD Cold Plate Temperature

(Inside VFD Enclosure)

13 — VFD Inverter Temperature

(Inside Power Module)

14 — Humidity Sensor (Inside VFD Enclosure)

15 — Oil Pressure Leaving Filter (Hidden)

16 — Oil Sump Pressure (Hidden)

17 — Oil Sump Temperature (Hidden)

18 — Vaporizer Temperature

19 — Evaporator Liquid Temperature

20 — Evaporator Liquid Flow (Optional)

Fig. 4 — Typical 23XRV Installation (Sensor Locations)

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Fig. 5 — VFD Nameplate

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Carrier HFC-134A installation instructions A23-1551, A23-1553