will begin to heat the crankcase oils. The thermostat’s time delay will lock out the compressor to prevent its operation until the compressor oil is sufficiently warmed. Dur- ing the lockout time period, the auxiliary heating system will operate to maintain a setpoint temperature.
For example, if a power outage of three hours occurs, the compressor will be locked out for two hours.
•TOTAL KEYPAD LOCKOUT — When op- tion switch #3 is in the total keypad lockout position (ON), programs cannot be altered and all buttons are disabled.
NOTE
Programming should be completed and bat- tery should be installed before changing op- tion switch #3.
Total Keypad Lockout
ON
1 2 3 4
Switch #1 set at installation (DO NOT CHANGE) Switch #2 set at installation (DO NOT CHANGE) Switch #3 ON
Switch #4 (see AUTOMATIC CHANGEOVER)
Switches #1 and #2 are set at installation and should not be changed. To enable total keypad lockout, move option switch #3 to ON (see figure above). DO NOT MOVE OPTION SWITCHES #1 OR #2, as this may affect thermostat operation [option switch #4 enables/disables automatic changeover (see AUTOMATIC CHANGEOVER)]. To disable total keypad lockout, move option switch #3 to OFF.
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