Fan Operation; Cooling System - White Rodgers NP110 Install Manual

5.1 Fan operation

If your system does not have a G terminal connection, skip to Heating System.
1. Turn on the power system
2. Move FAN switch to ON position. The blower should begin to operate.
3. Move FAN switch to AUTO position. The blower should stop immediately.

5.2 Cooling system

CAUTION
!
To prevent compressor and/or property damage, if the outdoor temperature is below 50°, DO NOT operate the cooling system
This thermostat has a time delay between cooling cycles to allow the head pressure in the compressor to stabilize.
If the temperature is adjusted to call for cool within 5 minutes of the last cycle the snowflake icon will blink indicating
the thermostat is locked out. After 3 to 5 minutes, the compressor will start and the snowflake icon will stop flashing.
This helps prevent the compressor from cycling too quickly and is normal operation for the thermostat.
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