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Fig. 5—24-volt control circuit connections – Carrier 38TMA User Manual

Page 5

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ARRANGEMENT C-ONE TRANSFORMER

(COOLING AND TWO-STAGE HEATING)

*IFR AND IFM ARE LOCATED IN FURNACE ON HEATING-COOLING APPLICATIONS. IF

ACCESSORY IFR IS REQUIRED FOR COOLING-ONLY APPLICATIONS, LOCATE (IFR) IN FAN

COIL.

FIELD SPLICE

______FIELD WIRING

______ FACTORY WIRING

(COOLING AND ONE-STAGE HEATING)

C

-CONTACTOR

HC

-HEATING CONTROL

IFM

-INDOOR FAN MOTOR

IFR

-INDOOR FAN RELAY

TRANS

-TRANSFORMER

NOTES: 1. REFER UTO UNIT WIRING LABEL FOR WIRE COLORS: C TO G AND C TO Y

CONNECTIONS.

2. N.E.C. CASS 2, 24V CIRCUIT MIN. 40VA REQUIRED; 60VA REQUIRED

FQR 050 AND 060 SIZE UNITS OR UNITS INSTALLED WITH LIQUID UNE

SOLENOID VALVE.

A91058

Fig. 5—24-Volt Control Circuit Connections