Instruction manual

ManualsBrandsAmana ManualsHeating SystemGCCA

WARNING

To avoid the risk of electrical shock, injury,

or death, the furnace must be electrically

grounded in accordance with local codes

or, in their absence, with the latest edition

of The National Electric Code.

To ensure proper unit grounding, the ground wire should

run from the furnace ground screw located inside the

furnace junction box all the way back to the electrical panel.

NOTE: Do not use gas piping as an electrical ground. To

confirm proper unit grounding, turn off the electrical power

and perform the following check.

1. Measure resistance between the neutral (white) con-

nection and one of the burners.

2. Resistance should measure 10 ohms or less.

This furnace is equipped with a blower door interlock

switch which interrupts unit voltage when the blower door

is opened for servicing. Do not defeat this switch.

24 VOLT THERMOSTAT WIRING

NOTE: Wire routing must not interfere with circulator blower

operation, filter removal, or routine maintenance.

Low voltage connections can be made through either the

right or left side panel. Thermostat wiring entrance holes

are located adjacent to the junction box locations in the

blower compartment. Wire routing must not to interfere

with circulator blower operation, filter removal, or routine

maintenance. Refer to the following figure for thermostat

connections to the integrated control module terminal

strip.

HEATING

ROOM

THERMOSTAT

HEATING AND

COOLING ROOM

THERMOSTAT

FURNACE

REMOTE

CONDENSING

UNIT

Thermostat Diagram

This furnace is equipped with a 40 VA transformer to

facilitate use with most cooling equipment. Consult the

wiring diagram, located on the blower compartment door,

for further details of 115 Volt and 24 Volt wiring.

WARNING

In upright upflow installations, the drain

trap must be mounted on the opposite side

of the unit from the junction box. This will

reduce the risk of water reaching the

junction box in the event of a blocked drain

condition.

Connect hot, neutral, and ground wires as shown in the

wiring diagram located on the unit’s blower door. Line

polarity must be observed when making field connections.

Line voltage connections can be made through either the

right or left side panel. The furnace is shipped configured

for a left side (right side for counterflows) electrical connec-

tion with the junction box located inside the blower com-

partment. To make electrical connections through the

opposite side of the furnace, the junction box must be

relocated to the other side of the blower compartment prior

to making electrical connections. To relocate the junction

box, follow the steps shown below.

NOTE: Wire routing must not to interfere with circulator

blower operation, filter removal, or routine maintenance.

CAUTION

Edges of sheet metal holes may be sharp.

Use gloves as a precaution when removing

hole plugs.

1. Remove the blower compartment door.

2. Remove and save the two screws securing the junc-

tion box to the side panel.

3. Relocate junction box and associated plugs and grom-

mets to opposite side panel. Secure with screws

removed in step 2.

4. Verify that wires will not interfere with circulator blower

operation, filter removal, or routine maintenance.

STANDARD

JUNCTION BOX

LOCATION

ALTERNATE

JUNCTION BOX

LOCATION

Junction Box Relocation