Goodmans CPG SERIES installation manual GAS Supply Piping, Areas Without Convenience Outlet

Areas Without Convenience Outlet

It is recommended that an independant 115V power source be brought to the vicinity of the roof top unit for portable lights and tools used by the service mechanic.

UNITS INSTALLED ON ROOF TOPS

Main power and low voltage wiring may enter the unit through the condenser end of unit or through the roof curb. Install conduit connectors at the desired entrance locations. Exter- nal connectors must be weatherproof. All holes in the unit base must be sealed (including those around conduit nuts) to prevent water leakage into building. All required conduit and fittings are to be field supplied.

Supply voltage to roof top unit must not vary by more than 10% of the value indicated on the unit data plate. Phase voltage unbalance must not exceed 2%. Contact your local power company for correction of improper voltage or phase unbalance.

HIGH VOLTAGE ENTRANCE (REMOVE PLUG)

	12 3/8”
	30 1/4”*
	1:4
* (6 Ton - 34 1/4”)	LOW VOLTAGE ENTRANCE

	3.5 DIA.
POWER THRU
THE CURB
	41/2”
47 1/2”	7 1/2”

Electrical Entrance and Thru Curb

Unit is equipped with a Low Voltage Terminal Block and has Single Point wiring to the contactor.

2.Locate thermostat or remote sensor in the conditioned space where it will sense average temperature. Do not locate the device where it may be directly exposed to supply air, sunlight or other sources of heat. Follow installation instructions packaged with the thermostat.

3.Use #18 AWG wire for 24V control wiring runs not exceeding 75 feet. Use #16 AWG wire for 24V control wiring runs not exceeding 125 feet. Use #14 AWG wire for 24V control wiring runs not exceeding 200 feet. Low voltage wiring may be National Electrical Code (NEC) Class 2 where permitted by local codes.

4.Route thermostat wires from sub-base terminals to the unit. Control wiring should enter through the condenser end of unit or through curb. Connect thermostat and any accessory wiring to low voltage terminal block TB1 in the main control box.

NOTE: Field-supplied conduit may need to be installed depending on unit/curb configuration. Use #18 AWG solid conductor wire whenever connecting thermostat wires to terminals on sub-base. DO NOT use larger than #18 AWG wire. A transition to #18 AWG wire may be required before entering thermostat sub-base.

LEAD	THERMOSTAT
Red	R (24V)
Green	G (Fan)
Yellow	Y1 (High Cool)
Purple	Y2 (Low Cool)
Blue	Common (if req'd)
White	W1 (Heat)
Brown	W2 (High Heat)

CPG 036 Thru 072 (Gas Heat)

GAS SUPPLY PIPING

WARNING

TO PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE, REFER TO THIS MANUAL. FOR ADDITIONAL ASSISTANCE OR INFORMATION, CONSULT A QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER.

IMPORTANT NOTE: This unit is factory set to operate on natural gas at the altitudes shown on the rating plate.

WARNING

TO AVOID PROPERTY DAMAGE, PERSONAL INJURY OR DEATH WHEN EITHER USING PROPANE GAS ALONE OR AT HIGHER ALTITUDES, OBTAIN AND INSTALL THE PROPER CONVERSION KIT(S). FAILURE TO DO SO CAN RESULT IN UNSATISFACTORY OPERATION AND/OR EQUIPMENT DAMAGE. HIGH ALTITUDE KITS ARE FOR U.S. INSTALLATIONS ONLY AND ARE NOT APPROVED FOR USE IN CANADA.

LOW VOLTAGE CONTROL WIRING

1.A 24V thermostat must be installed for unit operation. It may be purchased with the unit or field -supplied. Thermostats may be programmable or electromechanical as required.

The rating plate is stamped with the model number, type of gas and gas input rating. Make sure the unit is equipped to operate on the type of gas available. Conversion to propane

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