COOLING SYSTEM
!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 below 50°F, DO NOT operate the system for at least the amount of time the com- pressor was off! This will allow the compressor heaters to warm the compressor oils to avoid damage due to slugging.
1. Press | SYSTEM | until COOL is displayed. |
2.Press 
to adjust thermostat below room tem- perature to call for cool. The blower should come on immediately, followed by cold air circulation. How- ever, if the red LED on the thermostat front is flashing, the compressor lockout feature is operating (see Lockout Bypass Option to temporarily override the compressor lockout feature during testing).
If the thermostat display is operating properly, but the cooling system does not operate when the above steps are performed, the red jumper wire (provided with thermostat) may not be properly installed be- tween the RH and RC terminals. Disconnect electri- cal power to system and properly install the jumper wire per the appropriate wiring schematic.
Refer to the OPERATION GUIDE if you need additional information on thermostat operation.
TROUBLESHOOTING
Refer to the Question & Answer section of the OPERA- TION GUIDE for information on troubleshooting the ther- mostat.
LOCKOUT BYPASS OPTION
FOR QUALIFIED SERVICE TECHNICIANS’ USE ONLY. OPERATORS SHOULD NOT USE THIS FEATURE DUE TO POSSIBILITY OF EQUIPMENT OR PROPERTY DAMAGE, OR PERSONAL INJURY.
COMPRESSOR SHORT TERM
CYCLE PROTECTION
This thermostat has a
while testing thermostat operation, simply press PRGMADV and HOLDTEMP buttons at the same time at initial startup.
DO NOT USE THE LOCKOUT BYPASS OPTION UNLESS THE COMPRESSOR OIL HEATERS HAVE BEEN OPERATIONAL FOR 6 HOURS AND THE SYSTEM HAS NOT BEEN OPERATIONAL FOR AT LEAST 5 MINUTES.
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