Carrier 38TRA instruction manual Nc Y, A93199

THERMOSTAT

SUBASE

4

R

LLS

NC Y

TRANS

MIN 60VA

TRANS

SEE NOTE 2

RH	LEAVE JUMPER
	ON SUBASE
RC
	(RH TO RC)

BLLS NC

Y1

Y2

G

TO IFM LINE VOLTAGE POWER SUPPLY

Y C BLU C BRN

COND UNIT

TO IFM LINE
VOLTAGE	BLU C BRN
POWER
SUPPLY
G
IFR

IFR

A

W

ARRANGEMENT A–COOLING ONLY

W1
W2	HC1
	HC2

ARRANGEMENT C–1 TRANSFORMER;

COOLING AND 2-STAGE HEATING

4

ADD JUMPER

R

LLS

NC

Y

TO IFM LINE VOLTAGE POWER

SUPPLY

G

IFR

A

W

TRANS

SEE NOTE 2

BLU C BRN

HC

NOTES: 1. REFER TO UNIT LABEL WIRING DIAGRAM FOR WIRE COLORS. IFR, IFM AND LLS ARE LOCATED INDOORS ON HEATING-COOLING APPLICATIONS. IF ACCESSORY IFR IS REQUIRED FOR COOLING- ONLY APPLICATIONS, LOCATE IFR IN FAN COIL.

2.N.E.C. CLASS 2, 24V CIRCUIT, MIN 40VA REQUIRED.

C – CONTACTOR

HC	– HEATING CONTROL
IFM	– INDOOR FAN MOTOR
LLS	– LIQUID LINE SOLENOID VALVE
NC	– NORMALLY CLOSED

TRANS – TRANSFORMER

ARRANGEMENT B – 1 TRANSFORMER;

COOLING AND 1-STAGE HEATING

Fig. 6Ð24-V Control Circuit Connector

A93199

5