Instruction manual

27
Timing Chart for Integrated Ignition Control Normal Heating Operation
Timing Chart for Integrated Ignition Control Normal Cooling Operation
Seconds 0 5 0 45
Indoor Fan
Outdoor Fan
and
Compressor
Thermostat
ON
OFF
ON
OFF
ON
OFF
Circulator
Blower
Gas Valve
Igniter
Pressure Switch
Contacts
Induced Draft
Blower
Thermostat
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OPEN
CLOSED
CLOSED
OPEN
NOTE: CUSTOM CONTROLS, INC.
INTEGRATED CONTROL MODULE HAS A FIXED
STANDARD SEVEN-SECOND IGNITER WARM UP PERIOD
(MINI IGNITER).
WHITE-RODGERS 50A55 or 50T55
INTEGRATED CONTROL MODULE HAS
A
VARIABLE STANDARD IGNITER WARM UP PERIOD BETWEEN
A 17-SECOND MAXIMUM AND A FIVE-SECOND MINIMUM.
0
ign
circ
0
15
60,90,
120 or
180
IGNITER
WARM UP PERIOD
(see note)
FIXED HEAT
ON DELAY:
30 SECONDS
tt
SECONDS
WHITE-RODGERS 50A65
INTEGRATED CONTROL MODULE HAS A
20-SECOND IGNITER WARM UP PERIOD (SILICON NITRIDE).