Goodmans CPG SERIES 사용자 설명서

10

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.

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

LOW VOLTAGE ENTRANCE

1:4

30 1/4”*

12 3/8”

(REMOVE PLUG)

* (6 Ton - 34 1/4”)

4 1/2”

47  1/2”

7  1/2”

POWER THRU
THE CURB

3.5 DIA.

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

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.

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)

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

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