PTAC Owners Manual

KEYPAD CONFIGURATION
Keypad Configuration
Allows further configuration of system to desired application. Changes do not take affect until power is
cycled on the unit.
To enter Keypad configuration:
Cycle power to unit. Press and hold the FAN SPEED Button and COOLER button for 5 continuous
seconds, within 30 seconds of the unit being powered up. If the unit has had power for more than 30
continuous seconds, keypad configuration cannot be entered. When keypad configuration mode is first
entered, it will default to Fahrenheit/Celsius Display Mode.
To scroll through the Keypad Configuration Options:
Press and release the Fan Speed button. The stored value will be displayed.
To modify configuration settings:
Press and release the WARDMER or COOLER buttons.
To exit Keypad Configuration:
Keypad Configurationwill end on its own 30 seconds after the last button press or when the MODE button
on the Keypad is pressed.
Fahrenheit/Celsius Display Switch:
Change between degrees Fahrenheit and Celsius on the display. An “F” indicates Fahrenheit display and
‘C’ indicates Celsius. Default is degrees “F”.
Indoor Air Temperature Sensor Biasing for Cooling mode:
Sometimes known as an anticipator, the air temperature sensor bias is used to adjust the room air
temperature reading when in cooling mode. (Not normally required.)
Indoor Air Temperature Sensor Biasing for Dry mode:
Sometimes known as an anticipator, the air temperature sensor bias is used to adjust the room air
temperature reading when in dry mode. (Not normally required.)
Indoor Air Temperature Sensor Biasing forHeating mode:
Sometimes known as an anticipator, the air temperature sensor bias is used to adjust the room air
temperature reading when in heating mode. (Not normally required.)
Indoor Temperature Display:
Change between showing setpoint only on the display during heating and cooling modes “SP” or displaying
room temperature during heating and cooling modes “AA”. “SP” mode is the default mode.
If “SP” is selected, only the setpoint will be displayed during heating and cooling modes,
regardless of what the real temperature is in the room.
If “AA” mode is selected, the room temperature will be displayed during heating,
cooling and fan only modes.
If the mode button has been changed to either heating or cooling modes, setpoint will be displayed
for 10 seconds. After the 10 seconds, the room temperature will again be displayed.
If the on/off button is depressed (when the unit is off) and the last mode was either cooling or
heating mode, the setpoint will be displayed for 10 seconds before displaying room temperature.
During heating and cooling modes, if either the up or down setpoint key is depressed, the
display will show the setpoint until 10 seconds after the last up or down key press.
Switchover between Emergency Auto Cooling Allowed and Emergency Auto Cooling Rejected:
Press WARMER or COOLER to switch between the display of Emergency Auto Cooling.
Allowed and Emergency Auto Cooling Rejected.
Emergency Auto Cooling Allowed: the diode displays CA.
Emergency Auto Cooling Rejected: the diode displays Cd.
Room temperature will be displayed again.
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