LEGEND

AL

Alarm Relay

BC

Blower Contactor

CB

Circuit Breaker

CCCompressor 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)

Page 13
Image 13
Carrier 50VQP084-300 specifications A50-8438, 50VQP084-168 Unit with Complete C Control Typical