Amana GUIA Series Service Instructions Manual page 94

SYSTEM OPERATION
Cooling Mode
The normal operational sequence in cooling mode is as
follows:
1. R and Y thermostat contacts close, initiating a call for
cool.
2. Integrated control module performs safety circuit checks.
3. Outdoor fan and compressor are energized.
4. Circulator blower is energized following a fixed five sec-
ond on delay. The circulator blower will take 30 sec-
onds to ramp up to full speed. Electronic air cleaner
terminals are energized with circulator blower.
5. Furnace circulator blower and outdoor cooling unit run
and integrated control module monitors safety circuits
continuously.
6. R and Y thermostat contacts open, completing the call
for cool.
7. Outdoor fan and compressor are de-energized. Electronic
air cleaner terminals are de-energized.
8. Circulator blower is de-energized following a fixed forty
five second cool off delay period. The air circulator
blower will ramp down for another 30 seconds and shut
down.
9. Furnace awaits next call from thermostat.
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Rev. 1
Fan Only Mode
The normal operational sequence in fan only mode is as
follows:
1 R and G thermostat contacts close, initiating a call for
fan.
2. Integrated control module performs safety circuit checks.
3. Circulator blower is energized on low heat speed. Elec-
tronic air cleaner terminals are energized.
3. Circulator blower runs, integrated control module moni-
tors safety circuits continuously.
4. R and G thermostat contacts open, completing the call
for fan.
5. Circulator blower is de-energized. Electronic air cleaner
terminals are de-energized. The air circulator blower
will ramp down for another 30 seconds and shut down.
6. Furnace awaits next call from thermostat.