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LEGEND

NOTES (38AQS008 Unit)

1. If any of the original wire furnished must be replaced, it must be

replaced with type 90 C wire or its equivalent.

2. Thermostat: HH07AT171

Subbase: HH93AZ188

3. Set heat anticipator at .6.

4. Use copper conductors only.

5. Three-phase motors are protected under primary single-phasing

conditions.

6. 39 va available for field installed accessories. Control power require-

ment for heat pump condensing unit is 36 va (sealed). Supplied

control transformer is 75 va.

NOTES (38AQS012,016 Units)

1. Compressor and fan motor(s) thermally protected. Three-phase

motors are protected against primary single-phasing conditions.

2. If any of the original wire furnished must be replaced, it must be

replaced with type 90 C wire or its equivalent.

3. Terminal block 2 (TB2) is for field external control connections,

Class 2 wiring. Supply voltage at TB2 is 24 vac. Maximum power

available at TB2 is 31.5 va.

4. Field-supplied component ratings: IFC sealed coil rating (24 vac)

12 va max.

5. Must use thermostat HH07AT172 with subbase HH93AZ177.

6. Use copper, copper-clad aluminum, or aluminum conductors for

field power supply only.

7. Insulate unused lead when changing tap for 208 volt use.

8. The CB must-trip amps are equal to or less than 140% FLA.

9. Set thermostat heat anticipator(s) for first stage .79; for second

stage .63.

10. The CLO locks out the compressor to prevent short cycling on com-

pressor overload and safety devices. Before replacing CLO, check

these devices.

11. Remove jumper between RC and RH.

12. Defrost cycle time is factory set at 30 min.

MODEL

NUMBER

VOLTS

COMP DB

MFG. PT NO. Must

Trip

Amps

Heineman Airpax

38AQ012530

208/230

47-100-76 209-3-2599-410 61

38AQ016530

47-100-91 209-3-2599-378 89

Typical control wiring schematic

AHA —

Adjustable Heat Anticipator

AWG —

American Wire Gage

C —

Contactor Compressor

CAP —

Capacitor

CB —

Circuit Breaker (Compressor)

CC —

Cooling Compensator

CH —

Crankcase Heater

CLO —

Compressor Lockout

CLO1 —

Compressor Lockout

CLO2 —

Crankcase Heater Lockout

COMP —

Compressor Motor

COTP —

Compressor Over Temperature Protection

CR —

Control Relay

CT —

Current Transformer

CTD —

Compressor Time Delay

DB —

Defrost Board

DFR —

Defrost Relay

DFT —

Defrost Thermostat

DIR —

Defrost Interlock Relay

DT —

Defrost Timer

DU —

Dummy Terminal

EQUIP

GND

—

Equipment Ground

FCPS —

Fan Cycling Pressurestat

FLA —

Full Load Amps

FU —

Fuse

HC —

Heater Connector

HPS —

High-Pressure Switch

HR —

Heater Relay

HTR —

Heater

IFC —

Indoor-Fan Contactor

IFM —

Indoor-Fan Motor

IP —

Internal Protector

L —

Light

LCS —

Loss-of-Charge Switch

LLS —

Liquid Line Solenoid

LLSV —

Liquid Line Solenoid Valve

LOR —

Lockout Relay Switch

NDR —

No-Dump Reversing Valve Relay

NEC —

National Electrical Code

OFC —

Outdoor-Fan Contactor

OFM —

Outdoor-Fan Motor

OFR —

Outdoor-Fan Relay

OIL SOL —

Oil Return Solenoid

OL —

Overload Relay

OPS —

Oil Pressure Safety Switch

PCB —

Printed Circuit Board

QT —

Quadruple Terminal

RVR —

Reversing Valve Relay

RVS —

Reversing Valve Solenoid

SOL —

Solenoid

SW —

Switch

TB —

Terminal Block

TC —

Thermostat — Cooling

TGD —

Time Guard® Device

TH —

Thermostat — Heating

TRAN —

Transformer

T’STAT —

Thermostat

U —

Unloader

UR —

Unloader Relay

Terminal (PCB, Field)

Terminal (PCB, Factory)

Terminal Block Connection

Terminal (Unmarked)

Terminal (Marked)

Field Splice

Factory Splice

Splice (Marked)

Factory Wiring

Field Control Wiring

Accessory or Optional Wiring

Field Power Wiring

PCB Run

COMPRESSOR DELAY

DEFROST CYCLE

CTD

(T1,T2)

DFT

OF1,OF2

RVS

LAST DEFROST

CYCLE

T=30

T=50

T=90

T+10 MIN.

MAXIMUM

OPEN

DE-ENERGIZED

.5 SEC.

T+5 MIN.

OPENS

CLOSES

(TSTAT)

DE-ENERGIZED

Brand	Carrier
Model	40RMQ
Category	Heat Pump
Language	English

Carrier 40RMQ User Manual

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Questions and Answers:

Carrier 40RMQ Specifications

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