Carrier 50VQP084-300 specifications A50-8438, 50VQP084-168 Unit with Complete C Control Typical

LEGEND

AL	— Alarm Relay
BC	— Blower Contactor
CB	— Circuit Breaker

CC— Compressor Contactor

CO	— Sensor, Condensate Overflow
DPP	— Dual Point Power
DS	— Disconnect Switch
FP1	— Sensor, Water Coil Freeze Protection
FP2	— Sensor, Air Coil Freeze Protection
HP	— High-Pressure Switch
HPWS	— High-Pressure Water Switch
JW3	— Clippable Field Selection Jumper
LOC	— Loss of Charge Pressure Switch
MV	— Motorized Valve
PDB1	— Power Distribution Block
PDB2	— Power Distribution Block Dual Point Option
RVS	— Reversing Valve Solenoid

TRANS — Transformer

Factory Line Voltage Wiring

Factory Low Voltage Wiring

Field Line Voltage Wiring

Field Low Voltage Wiring

Printed Circuit Trace

Optional Wiring

13

Relay/Contactor Coil

Thermistor

Condensate Pan

Circuit Breaker

Ground

Solenoid Coil

Relay Contacts - N.O.

Relay Contacts - N.C.

Temperature Switch

Switch - Low Pressure

Switch - High Pressure

Wire Nut

NOTES:

1.Compressor and blower motor thermally protected internally.

2.All wiring to the unit must comply with NEC (National Electrical Code, U.S.A.) and local codes.

3.380/420-v transformers will be connected for 380-v operation. For 420-v operation, disconnect VIO lead at L1, and attach BRN lead to L1. Close open end of VIO lead.

4.FPI jumper provides low temperature protection for WATER. When using ANTIFREEZE solu- tions, cut JW3 jumper.

5.Typical heat pump thermostat wiring shown. Refer to thermostat installation instructions for wir- ing to the unit. Thermostat wiring must be “Class 1” and voltage rating equal to or greater than unit supply voltage.

6.24-v alarm signal shown. For dry alarm contact, cut JW1 jumper and dry contact will be avail- able between AL1 and AL2.

7.Transformer secondary ground via Complete C board standoffs and screws to control box. (Ground available from top two standoffs as shown.)

8.For dual point power option, blower wires (3 qty) will go to PDB2 only.

Complete C

a50-8438

Fig. 27 — 50VQP084-168 Unit with Complete C Control (Typical)