CHECK THERMOSTAT OPERATION
NOTE
If at any time during testing, your system does not operate properly, contact a qualified serviceperson.
Fan Operation
1.Turn on power to the system.
2.Press SYSTEM button until the system is OFF.
3.Move FAN switch to ON. The blower should begin to operate.
4.Move FAN switch to AUTO position. The blower should stop within a short period of time.
Heating System
1.Press SYSTEM button to turn thermostat to HEAT.
2.Press
to adjust thermostat setting to 90° and hold for five seconds. After you release the button, both stages of the heating system should begin to operate within five seconds.
3.Press 
to adjust temperature setting below room tempera- ture. The auxiliary heating system will stop immediately and the first stage will stop within three to four minutes.
Cooling System
!CAUTION
To prevent compressor and/or property damage, if the outdoor temperature is below 50°F, DO NOT operate the cooling system.
1.Press SYSTEM button to turn thermostat to COOL.
2.Press
to adjust thermostat setting to 45° and hold for five seconds. After you release the button, the blower should come on immediately on high speed, followed by cold air circulation. Both stages of the cooling system should begin to operate (if you have a
If the fan is running but the compressor is not running and the word COOL is flashing, the compressor lockout feature is operating (see Lockout Bypass Option to temporarily override the compressor lockout feature during testing).
3.Press
to adjust temperature setting above room tempera- ture. The cooling system should stop operating.
NOTE
During normal operation, the second stage of heat or cool may take 15 to 30 minutes to turn on. The delay varies depending on the performance of the first stage. Typically the second stage will come on sooner in more severe weather, while in milder weather it will take longer. There is no adjustment to this feature, as it is designed to maximize both comfort and efficiency.
LOCKOUT BYPASS OPTION
FOR QUALIFIED SERVICE TECHNICIANS’ USE ONLY. OPERATORS SHOULD NOT USE THIS FEA- TURE 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 
and 
buttons at the same time.
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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