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means,forexample,thatif theunoccperiodtemperatureset-
tingislowerthantheperiodthatprecedesit,thenthethermo-
statwillstartcoolingdownthe space before the beginning of
the scheduled unocc period. The thermostat does this at an en-
ergy efficient rate. This not only helps make the space as com-
fortable as possible, it also makes thermostat usage more cost
effective.
Power Outage --If the building loses electricity, the
thermostat will not need to be reprogralmned. The settings are
retained in memory.
TROUBLESHOOTING
There are system error messages that may appear on the
thermostat screen. See Table 4 for a list the possible system er-
ror messages and what they mean.
Table 4 -- Thermostat Error Code Descriptions
ERROR
CODE DESCRIPTION
The system is not communicating properly, Call the
E1 local Carrier representative for service
The temperature sensor has failed, Call the local
E3 Carrier representative for service
There is an internal memory failure, Call the local
E4 Carrier representative for service
The humidity sensor is not working, Call the local
E5 Carrier representative for service