Cooling Mode; Fan Only Mode; Operational Checks; Burner Flame - Amana AMV9 Installation Instructions Manual

•
Igniter warm up begins upon step to low speed and
presence of closed low stage pressure switch contacts.
•
Gas valve opens at end of igniter warm up period, delivering
gas to burners and establishing flame.
•
Integrated control module monitors flame presence. Gas
valve will remain open only if flame is detected.
•
If the thermostat call is for low heat, gas valve and induced
draft blower will continue on low stage. If the call is for high
heat, the gas valve and induced draft blower will change to
high stage.
•
Circulator blower is energized on heat speed following a fixed
thirty second blower on delay. The circulator blower requires
thirty (30) seconds to ramp up to full speed. Electronic air
cleaner terminals are energized with circulator blower.
•
Furnace is now operating on the specified stage called for by
the two-stage thermostat.
•
Furnace runs, integrated control module monitors safety
circuits continuously.
•
If the two-stage thermostat changes the call from low heat to
high heat, the integrated control module will immediately
switch the induced draft blower, gas valve, and circulator
blower to their high stage settings.
•
If the two-stage thermostat changes the call from high heat
to low heat, the control will immediately switch the induced
draft blower and gas valve to their low stage settings. The
circulator blower will remain on high heating speed for thirty
(30) seconds before switching to the low heat circulating
speed.
•
R and W1 (or R and W1/W2) thermostat contacts open,
completing the call for heat.
•
Gas valve closes, extinguishing flame.
•
Induced draft blower is de-energized following a fifteen second
post purge. Humidifier terminals are de-energized.
•
Circulator blower continues running for the selected heat off
delay period (90, 120, 150 or 180 seconds). The speed run
during this period depends on the last heat call provided by
the thermostat.
If the last call for heat was a call for low heat, the air circulator
motor will run on low heat speed for the duration of the heat
off delay period (90, 120, 150 or 180 seconds).
If the last call for heat was a call for high heat, the air circulating
motor will run on the high heating speed for thirty (30) seconds
and then switch to the low heating speed for the balance of
the heat off delay period (60, 90, 120 or 150 seconds).
•
Circulator blower and electronic air cleaner terminals are de-
energized.
•
Circulator blower ramps down to OFF during the 30 seconds
following the heat off delay period.
•
Furnace awaits next call from thermostat.
C M
OOLING ODE
The normal operational sequence in cooling mode is as follows:
•
R and YLO/G or Y/G thermostat contacts close, initiating a
call for cool.
•
Integrated control module performs safety circuit checks.
•
Outdoor fan and compressor are energized to their appropriate
speed.
•
Circulator blower is energized on the appropriate cool speed
at the level and time determined by the selected ramping
profile. Electronic air cleaner terminals are energized with
circulator blower.
•
Furnace circulator blower and outdoor cooling unit run their
appropriate speed, integrated control module monitors safety
circuits continuously.
•
R and YLO/G or Y/G thermostat contacts open, completing
the call for cool.
•
Outdoor fan and compressor are de-energized.
•
Circulator blower continues running during a cool off delay
period. The OFF delay time and airflow level are determined
by the selected ramping profile.
• Electronic air cleaner terminals and circulator blower are de-
energized.
•
Furnace awaits next call from thermostat.
F O M
AN NLY ODE
The normal operational sequence in fan only mode is as follows:
•
R and G thermostat contacts close, initiating a call for fan.
•
Integrated control module performs safety circuit checks.
•
Circulator blower is energized on continuous fan speed (56%
of high stage cooling) following a five (5) second delay.
Electronic air cleaner terminals are energized.
•
Circulator blower runs, integrated control module monitors
safety circuits continuously.
•
R and G thermostat contacts open, completing the call for
fan.
•
Circulator blower is de-energized. Electronic air cleaner
terminals are de-energized.
•
Furnace awaits next call from thermostat.
XVI. OPERATI XVI. OPERA XVI. OPERA
XVI. OPERA XVI. OPERA
B F
URNER LAME
The burner flames should be inspected with the burner compart-
ment door installed. A sight glass is provided for inspection pur-
poses. Flames should stable, quiet, soft, and blue (dust may cause
orange tips but they must not be yellow). Flames should extend
directly outward from the burners without curling, floating, or lifting
off. Flames must not impinge on the sides of the heat exchanger
firing tubes.
P L
RIMARY IMIT
The primary limit control guards against overheating resulting from
insufficient conditioned air passing over the heat exchanger. If the
primary limit control does not function during this test, the cause
must be determined and corrected. Function of this control should
be verified by gradually blocking the furnace return air after the fur-
32
TIO O O O O NAL CHECK TI TI NAL CHECKS S S S S NAL CHECK NAL CHECK
TI NAL CHECK
Check the burner flames for:
1. Good adjustment
2. Stable, soft and blue
3. Not curling, floating, or lifting off.

Burner Flame