GM9S96 Service Manual
SYSTEM OPERATION
26
To change the main blower speed in COOLING mode, fol-
low the following steps:
1. Press the left or right switch until LED displays “AC1
“(for single stage COOLING) or “AC2 “(for two-stage
COOLING). Press the center switch and LED will dis-
play the selected speed number as Fxx (xx: Blower
speed 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 dis-
played 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 inte-
grated control will close the gas valve and extinguish
time expires, the blower de-energizes.
2. Remove the burner compartment door and move the
furnace gas valve manual control to the OFF position.
3.
furnace.
4. Replace the burner compartment door.