Maytag Amana M9S80-U Series, Руководство по установке

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relay will close the EAC contacts.
•
After the thermostat is satisfied, the compressor is de-
energized and the Cool Mode Fan Off Delay period
begins.
•
Following the Cool Mode Fan Off Delay period, the
indoor fan and air cleaner relays are de-energized
2nd Stage Cooling Mode Sequence:
NOTE:
A Y1 call must be present or a Y2 call will be ignored
•
On a call for 2nd stage cooling, the Y2 or Y2 and G
thermostat contacts close signaling the furnace control
board with 24 vac. on Y2 or Y2 and G terminals.
•
The 7-Segment will display; 2 A C
•
The compressor and condenser fan are energized.
•
The circulator fan is energized at cool speed after a
cool on delay. The electronic air cleaner EAC relay will
close the EAC contacts.
•
After the thermostat is satisfied, the compressor is de-
energized and the Cool Mode Fan Off Delay period
begins.
•
Following the Cool Mode Fan Off Delay period, the
indoor fan and air cleaner relays are de-energized
Heat Pump Mode
1st Stage HP Heating Mode Sequence:
•
On a call for low stage HP Heating, the Y1 or Y1 and G
thermostat contacts close signaling the furnace control
board with 24 vac. on Y1 or Y1 and G terminals.
•
The 7-Segment will display; 1 H P
•
The compressor and condenser fan are energized.
•
The circulator fan is energized at HP1 fan speed after
the HP on delay period. The electronic air cleaner, EAC,
and humidifier, HUM, relays will close the contacts.
•
After the thermostat is satisfied, the compressor is
de-energized and the electronic air cleaner EAC and
humidifier HUM relays de-energize. The HP Heat Mode
Fan Off Delay period begins.
•
Following the HP Heat Mode Fan Off Delay period, the
indoor fan, EAC, & HUM relays are de-energized.
2nd Stage HP Heating Mode Sequence:
NOTE: A Y1 call must be present or a Y2 call will be ignored
•
On a call for 2nd stage HP Heating, the Y2 or Y2 and G
thermostat contacts close signaling the furnace control
board with 24 vac. on Y2 or Y2 and G terminals.
•
The 7-Segment will display; 2 H P
•
The compressor and condenser fan are energized.
•
The circulator fan is energized at HP2 fan speed after
the HP on delay period. The electronic air cleaner EAC
and humidifier HUM relays will close the contacts.
•
After the thermostat is satisfied, the compressor is
de-energized and the electronic air cleaner EAC and
humidifier HUM relays de-energize. The HP Heat Mode
Fan Off Delay period begins.
•
Following the HP Heat Mode Fan Off Delay period, the
indoor fan, EAC, & HUM relays are de-energized.
Fan Only Mode
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 user selected fan
speed. Electronic air cleaner terminal relay is 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
terminal relay is de-energized.
•
Furnace awaits the next call from thermostat.
Defrost Mode
Defrost call can only be generated with heat pump outdoor
unit properly configured in the OdS menu.
• On a call for Defrost, the Y1 or Y1 with Y2 with/without
O contacts and W thermostat contacts close signaling
the furnace control board to enter defrost.
• If Y with O and W are present simultaneously, the blower
shall be energized at Cooling Speed after COOL on
delay, then, switch the blower speed to the Greater of
(Cooling Speed or Gas Heat speed) after Gas Heat On
Delay expired.
• If Y without O and W are present simultaneously, the
blower shall be energized at HP Heat Speed after HP
Heat On Delay, then, switch the blower speed to the
Greater of (HP Heat Speed or Gas Heat speed) after
Gas Heat On Delay expired.
• The 7-Segment will display; d F t
• The electronic air cleaner EAC and humidifier HUM
relays will close the contacts.
• After the thermostat is satisfied, the gas valve will de-
energize. The Gas Heat Mode Fan Off Delay period
begins.
• Following the Gas Heat Mode Fan Off Delay period,
the indoor fan, EAC, & HUM relays are de-energized.
Start-up Procedure And Adjustment
Furnace must have a 120 VAC power supply properly
connected and grounded. Proper polarity must be maintained
for correct operation. An interlock switch prevents furnace
oper ation if the blower door is not in place. Keep the blower