Carrier 58PHA/PHX instruction manual Furnace Control

BLOWER OFF-DELAY

24-V THERMOSTAT TERMINALS

3-AMP FUSE

LED OPERATION

&DIAGNOSTIC

TWINNING AND/OR

COMPONENT TEST

TERMINAL

HUMIDIFIER TERMINAL (24-VAC 0.5 AMP. MAX)

58PHA

LIGHT

BLOWER SPEED

HEAT

COOL

TRANSFORMER

24-VAC CONNECTIONS

SELECTION FAN

TERMINALS

SPARE 2

SPARE 1

115-VAC (L2)

NEUTRAL

CONNECTIONS

EAC-1 TERMINAL

(115-VAC 1.0 AMP. MAX.)

115-VAC (L1)

NEUTRAL

CONNECTIONS

PL1-LOW VOLTAGE

DRAIN HARNESS

CONNECTOR

PL2-HOT SURFACE

IGNITER & INDUCER

MOTOR CONNECTOR

A08063

Fig. 24 - Furnace Control

						FIELD 24-V WIRING
						FIELD 115-, 208/230-, 460-V WIRING
						FACTORY 24-V WIRING
						FACTORY 115-V WIRING
			NOTE 2			THERMOSTAT
		FIVE WIRE		W C R	G Y		FIELD-SUPPLIED
						TERMINALS
		THREE-WIRE					DISCONNECT
	HEATING-ONLY						208/230- OR
BLOWER DOOR SWITCH
							460-V
							THREE
BLK	BLK			W			PHASE
WHT	WHT		C	R
			O
			N				208/230-V
	GND	GND	T				SINGLE
115-V FIELD-		AUXILIARY	R	G			PHASE
			O
	SUPPLIED	J-BOX	L	COM			GND
DISCONNECT				NOTE 1		CONDENSING
				Y/Y2		UNIT
			24-V			TWO
		TERMINAL				WIRE
			BLOCK
		FURNACE		NOTES: 1.	Connect Y-terminal in furnace as shown for proper blower operation.
				2. Some thermostats require a "C" terminal connection as shown.

3. If any of the original wire, as supplied, must be replaced, use same type or equivalent wire.

A99440

Fig. 25 - Heating and Cooling Application Wiring Diagram with 1-Stage Thermostat

24