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Option 17 -- Time between equipment stages (HP only)
Option 18 -- Continuous backlighting (when 24VAC is supplied only)
Option 26 -- Minimum cooling setpoint
Option 27 -- Maximum heating setpoint
Option 39 -- Display setpoint only (or setpoint and room air)
Option 99 -- Reset to factory defaults
To Enter the Advanced Configuration Mode:
Press and hold the FAN key for about 10 seconds until the d isplay changes so
that only two pairs of digits are showing. The large upper display shows the
configuration number and the small lower shows the configuration setting.
Configuration number will be flashing, which means it can be adjusted using the
UP and DOWN keys. To cause the opposite pair to flash (to be adjustable), press
the MODE k ey. Successive presses o f the MODE key alternate between the
configuration number and the configuration setting. To exit the configuration
mode, press the FAN key. If no key is pressed for 3 minutes, the configuration
mode will automatically exit, returning the thermostat to normal operation (all
previous changes will be saved).
Configuration Options -- Selection:
Option 01 -- Equipment type
A PT AC HeatPump thermostat (PT ACSTAT--NP--HP--x), valid selections are PH
or PC -- Default is PH.
A PTAC HeatCool thermostat (PTACSTAT--NP--AC--x), the only valid selection
is PC -- Default is PC.
Other selections are available, HP (HeatPump stat only), AC, H or C, but should
not be used as they will not operate your PTAC correctly.