COOLING SYSTEM OPERATION
!CAUTION
To prevent compressor and/or property damage, if power to the compressor has been off or interrupted for more than 1 hour and the outdoor temperature is be- low 50°F, DO NOT operate the system for at least the amount of time the compres- sor was off! This will allow the compres- sor heaters to warm the compressor oils to avoid damage due to slugging.
1. Press | SYSTEM | until COOL is displayed. |
2.Press to adjust thermostat to 40°F. The cooling system should come on within approxi- mately five minutes. However, if the fan is run- ning but the compressor is not, the compressor lockout feature is operating (see Lockout By-
pass Option to temporarily override the com- pressor lockout feature during testing).
3.To program the thermostat, see PROGRAM-
MING YOUR THERMOSTAT.
After heating and cooling system have been checked and are running properly, determine if automatic changeover is desired. When option switch #4 is in the proper position, automatic changeover is en-
abled by pressing | SYSTEM | until AUTO is displayed |
(see SET OPTION SWITCHES). In the AUTO mode, the setpoint temperature is not displayed.
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