GM9S80 Installation Manual
19
On a call for low stage cooling, the Y/Y1 or Y/Y1 and G ther-
mostat contacts close signaling the furnace control board
• The 7-Segment will display the cool mode:1 A C
• The compressor and condenser fan are energized.
• The circulator fan is energized at low cool speed after
a cool on delay. The electronic air cleaner will also be
energized.
•
•
circulator and air cleaner relay are de-energized.
On a call for 2nd stage cooling, the Y2 or Y2 and G thermo-
stat contacts close signaling the furnace control board with
• The 7-Segment will display the cool mode: 2 A C
• The compressor and condenser fan are energized.
• The circulator fan is energized at cool speed after a
cool on delay. The electronic air cleaner will also be
energized.
•
begins.
•
circulator and air cleaner relay are de-energized
the following steps:
1.
number from 1 to 9).
2. The control will rotate available speed number every time
left/right switches are pressed. All 9 speeds are available
for both Single and Two Stage cooling.
3. When the center switch is pressed, the current displayed
speed will be selected, and control will apply the newly
selected speed in next cooling call.
THERMOSTATCALL AVAILABLESPEEDS
Y/Y1
F01
F02
F03
F04(DEFAULT)
F05
F06
F07
F08
F09
THERMOSTATCALL AVAILABLESPEEDS
Y2
F01
F02
F03
F04
F05(DEFAULT)
F06
F07
F08
F09
1. Set the thermostat to the lowest setting. The integrated
expires, the blower de-energizes.
2. Remove the burner compartment door and move the
3.
furnace.
4. Replace the burner compartment door.
OU TLET
INLET
Gas Valve ON/OFF Selector Switch
Outlet Pressure
Inlet Pressure
Regulator
Cover Screw
.
Regulator Cover
Screw