Carrier 58MEC instruction manual Field Wiring, A99071, A99072

58MEC

FIELD 24-V WIRING

FIELD 115-, 208/230-, 460-V WIRING

FACTORY 24-V WIRING

FACTORY 115-V WIRING

	1-STAGE THERMOSTAT TERMINALS
FIVE	W	Y	R G C	FIELD-SUPPLIED
WIRE				FUSED DISCONNECT

		TWO-WIRE			208/230- OR
		HEATING-
		ONLY			460-V
					THREE
BLK	BLK		W2		PHASE
				GND	GND
WHT	WHT		COM
			W/W1		208/230-V
	GND	GND			SINGLE
115-V FUSED		JUNCTION	Y/Y2		PHASE
DISCONNECT		BOX	R	GND	GND
	SWITCH	CONTROL		CONDENSING
(WHEN REQUIRED)		BOX	G
				UNIT
			24-V
		TERMINAL
			BLOCK	NOTES: 1. Connect Y-terminal as shown for proper operation.
		FURNACE
				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.

A99071

Fig. 15 - Field Wiring

FIELD 24-V WIRING

FIELD 115-, 208/230-, 460-V WIRING

FACTORY 24-V WIRING

FACTORY 115-V WIRING

2-STAGE THERMOSTAT TERMINALS

SEVEN	W2 W1 Y2	R G Y1	C	FIELD-SUPPLIED
WIRE
				FUSED DISCONNECT

		THREE-WIRE				208/230- OR
		HEATING-
						460-V
		ONLY
						THREE
BLK	BLK		W2			PHASE
				GND
						GND
WHT	WHT		COM
			W/W1			208/230-V
	GND	GND		C		SINGLE
115-V FUSED		JUNCTION	Y/Y2			PHASE
				Y1
DISCONNECT		BOX			GND
			R	Y2		GND
	SWITCH	CONTROL		2-SPEED
(WHEN REQUIRED)		BOX	G
				CONDENSING
			24-V	UNIT
		TERMINAL
		BLOCK		NOTES: 1. Connect Y-terminal as shown for proper operation.
		FURNACE
				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.

A99072

Fig. 16 - Field Wiring

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