30
• In Auto Fan mode fan cycles with call for Heat or Cool.
• Fan speed is determined by microprocessor and speed
adjustment is made according to room and setpoint
temperatures.
• Fan will stay on for additional 60 seconds to purge unit
of any residual energy.
fan Operation
Indoor unit utilizes three-speed motor with four operational
fan modes.
FAN button allows selection of desired fan setting in all
modes except Dry mode.
• HHR indicates fan speed selection.
• Dry mode fan speed remains constant at low speed.
• While unit is in Fan mode, Auto is by-passed and only
High, Medium, or low speeds are available.
fan Speeds
High, Medium and low are constant fan settings. Fan
operates continuously regardless of set point or room
temperatures. Auto mode is for automatic cycling fan
operation.
Auto fan mode can only be selected if unit is in Heat, Cool
or Auto changeover modes.
When power is first applied to control or after power outage
there is 3 minute delay before compressor or electric heat
energize. This is to protect unit from short cycling due to
loss of power.
WIReD WALL COnTROL OpeRATIOn
COOLIng Operation
Optional wired wall controller controls call for cooling
operation (On or Off).
After connecting control to unit, place system in Cool
mode.
• Adjust set-point temperature below room
temperature.
• Compressor and fan motors start and cooling begins.
Place set-point temperature above room temperature.
• Outdoor condenser stops.
• Fan operates as described in FAN operation.
Once cooling has cycled off or following power outage,
compressor does not start for at least 3 minutes (short-
cycle protection).
eLeCTRIC HeAT Operation
Optional wired wall controller operation with electric heat,
control must be configured properly. "Remote Thermostat
ON, heat source ON". See Table 3, Page 24
.
Wall thermostat controls call for electric heat operation (On
or Off).
After connecting thermostat to unit, place system switch in
Heat mode.
• Adjust set-point temperature above room
temperature.
• Electric heat energizes with indoor fan motor.
• Heating continues so long as set-point remains above
room temperature.
Place set-point temperature below room temperature.
• Electric heater will switch off and indoor fan remains
on for additional 60 seconds.
Once heating has cycled off or following power outage,
heating does not start for at least 3 minutes (short-cycle
protection).
optional
Heat Pump With Electric heat (Two-
stage Heating)
Optional wired wall thermostat operation for two stage
heating including heat pump condenser and indoor electric
heat, control must be configured properly. "Remote
Thermostat ON, heat source ON". See Table 3, Page 24.
Wired wall controller controls call for electric heat operation
(On or Off).
After connecting control to unit, place system switch in
Heat mode.
• Adjust set-point temperature above room
temperature. Compressor and fan motors start and
heating begins.
• Electric heat will energize when deviation between
room temperature and set point temperature is high
enough to call for second stage heating.
Place set-point temperature below room temperature.
• Outdoor condenser and electric heat stop while indoor
fan remains on for additional 60 seconds.
Once heating has cycled off or following a power outage,
heating does not start for at least 3 minutes (short-cycle
protection).
