OPERATION
HEAT MODE
Output
Thermostat - W2
Thermostat - W1
High Speed Inducer (IND HI)
Low Speed Inducer (IND LO)
Pressure Switch (PS2)
Pressure Switch (PS1)
Ignitor
Second Stage Gas (MVH)
First Stage Gas Valve (MVL)
Flame Sensor
Blower (High Heat Speed)
Blower (Low Heat Speed)
Humidifier (HUM)
EAC
4
Heating until Thermostat
15 s 17-19 s <5 s 30 s
is Satisfied
15 s 90, *120, 150, 180
(30s delay)
Blower Off Delay
*default