Features and Operation
ON/OFF Switch
Warning:
ON/OFF switch does not disconnect
power from all circuits.
The ON/OFF switch is located on the electronics
cover behind the front case panel. The ON/OFF
switch disables all relays but does not disconnect
power from all circuits. No functions are available
when the switch is off.
Dip Switches
The dip switches are located behind the front case
panel, through an opening on the front of the unit.
The top row of dip switches control Temperature
Limiting. The bottom row of dip switches control
the heat pump lockout, Freeze Sentinel, constant
fan, Energy Management System, and indoor fan
speed.
The dip switches will be set in the down position
from the factory.
ALL I
2
R (All Electric Heat) (on some models)
FREEZ S (Freeze Sentinel)
CONST FAN (Constant ON Fan)
TL1 (H) (Temp. Limit 1–Heat)
TL2 (H) (Temp. Limit 2–Heat)
TL3 (H) (Temp. Limit 3–Heat)
TL1 (C) (Temp. Limit 1–Cool)
TL2 (C) (Temp. Limit 2–Cool)
TL3 (C) (Temp. Limit 3–Cool)
No Function (Reserved for future use)
DUCT (Blower Fan)
OCCUPIED (Occupancy Sensor)
CONST FAN
When this switch is up, the fan runs continuously
at high speed even if unit is off.
ALL I2R (Heat pump lockout)
When this switch is up, heat
pump operation is locked out.
Only electric resistance heat is
available when switch is up.
Note:
Not all models are
equipped with heat pumps. Refer
to the Nomenclature chapter to
determine if your model is
equipped with a heat pump.
FREEZ S (Freeze Sentinel)
Refer to the Freeze Sentinel section
of this chapter for more information.
OCCUPIED
Refer to the Energy Management
System section of this chapter for
more information.
DUCT
This switch, in conjunction with the
thermostat connection, controls indoor
fan speed.
Refer to the Fan Speed section of this
chapter for more information.
NOT USED
Dip
Switches
ON/OFF Switch
Summary of Contents for AZ75E09DAC
Page 7: ... 5 Direct Connection 208 VAC 230 VAC 265 VAC ...
Page 37: ... 35 Notes ...
Page 45: ... 43 Parts List ...
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Page 55: ... 53 Notes ...