Goodman Mfg A/GPG13 M Low Voltage Wiring, Typical Electrical Wiring Unit Voltage

Movement of air must not be obstructed by furniture, door, draperies, etc. The thermostat must not be mounted where it will be affected by drafts, hot or cold water pipes or air ducts in walls, radiant heat from fireplace, lamps, the sun, television, etc. Consult the Instruction Sheet packaged with thermostat for mounting instructions.

All units have one stage of heating and one stage of mechanical cooling. Units which will have economizers may use thermostats with one or two stages of cooling.

The units are designed for operation on 60 hertz current and at voltages as shown on the rating plate. All internal wiring in the unit is complete. It is necessary to bring in the power supply to the contactor as shown on the unit wiring diagram which is supplied with each unit. 24 volt wiring must be connected between the unit control panel and the room thermostat.

CAUTION

TO PREVENT IMPROPER AND DANGEROUS OPERATION DUE TO WIRING ERRORS, LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. VERIFY PROPER OPERATION AFTER SERVICING.

For unit protection, use a time delay fuse or HACR circuit breaker that is in excess of the circuit ampacity, but less than or equal to the maximum overcurrent protection device. DO NOT EXCEED THE MAXIMUM OVERCURRENT DEVICE SIZE SHOWN ON UNIT DATA PLATE.

All line voltage connections must be made through weatherproof fittings. All exterior power supply and ground wiring must be in approved weatherproof conduit. Low voltage wiring from the unit control panel to the thermostat requires coded cable. See below for ground level and rooftop wiring.

Note:Junction box location shown is optional and is

for illustration purposes only.

JUNCTION BOX

C R Y W G

LOW VOLTAGE CONNECTOR

	18-B18099	400A-83-1068
							COOL
							HEAT				L2
		K4									L2
		K3
							UNUSED				L2
											L2
							L1
							L1
MODEL	1068-400			K2			DI
SYSTEM		R	K1			FS
AUTOMATICIGNITION						9		6
	400mAMAX.			12	12	9	6		3
											3 2
	50/60Hz	Y	11		11	8 5 2				3
Z21.20		W			11	8	5			2
				10	10	7 4			P1 1		1
ANSI 24VAC		G			10	7 7	4	4		1
					F1						ECON
				FUSE 3 AMPMAX							120
	STAGE						P3				135
											150
	TWOFOR
	COMPRESSOR										SPEED-UP
	BREAK								P2
	T2
			C22			T1

Electrical Power Directly To Junction Box

Low Voltage Wiring

Refer to the unit wiring diagram for electrical connections. When installed, the unit must be electrically grounded in accordance with local codes or in the absence of local codes, with the National Electrical Code, ANSI/NFPA No. 70, and/or the CSA C22.1 Electrical Code. Ensure low voltage connections are waterproof.

WARNING

TO AVOID THE RISK OF ELECTRICAL SHOCK, WIRING TO THE UNIT MUST BE POLARIZED AND GROUNDED.

CAUTION

TO AVOID PROPERTY DAMAGE OR PERSONAL INJURY DUE TO FIRE, USE ONLY COPPER CONDUCTORS.

Electrical Power Routed Through Bottom of Unit

Typical Electrical Wiring Unit Voltage

UNIT VOLTAGE

The unit transformer is factory connected for 230V operation. If the unit is to operate on 208V, reconnect the transformer primary lead as shown on the unit wiring diagram.

HEAT ANTICIPATOR SETTING

The heat anticipator is to be set by measuring the load (amperage) at the “R” circuit. Follow the instructions provided by the thermostat for more details.

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