OPERATION
SYSTEM CONFIGURATION
ELECTRIC HEAT SYSTEMS
For central electric heat systems where the blower is energized by a separate circuit through the fan relay (meaning that the fan turns on immediately on call for heat), clip wire W14 on the back of the thermostat (see fig. 10). If the thermostat is energizing electric heat sequenc- ers, DO NOT clip wire W14.
ENERGY MANAGEMENT RECOVERY
(EMR)
When the EMR feature is activated, the thermostat's mocrocomputer automatically calculates the time it will take to change the temperature to the next program setting. Then the thermostat will activate the heating or cooling system to change the temperature so that the desired temperature is reached at or near the beginning of the next program period (the thermostat's microcom- puter calculates 15 minutes for every 2°F temperature change). For example, assume that the thermostat is programmed to provide an overnight heating temperature of 62°F, and during the next program period, programmed to begin at 6:00 AM, the programmed temperature is 70°F. With EMR activated, the thermostat will automati- cally activate the heating system at 5:00 AM, so that the programmed temperature of 70°F is reached by about 6:00 AM.
The thermostat is shipped with the EMR feature inactive, which means that the thermostat will activate the heating or cooling system at, not before, the beginning of the program period (real time).
To activate the EMR function, clip wire S3 on the back of the thermostat (see fig. 10).
Batteries |
W14 |
S3 |
Figure 10. Back of Thermostat
CHECK THERMOSTAT OPERATION
If at any time during testing the system does not function correctly, disconnect electrical power at fuse box or circuit breaker and check that all wiring is correct.
FAN OPERATION
1.Turn on power to the system. If the heat source has a standing pilot, be sure to light it.
2. Press | FAN | until FAN ON is displayed. The blower |
ON – AUTO |
should begin to operate (this will work only on sys- tems with a G terminal).
On
properly, but the fan does not operate when | FAN |
ON – AUTO |
is pressed, the red jumper wire (provided with thermo- stat) may not be properly installed between the RH and RC terminals. Disconnect electrical power to system and properly install the jumper wire per the appropriate wiring schematic.
3. Press | FAN | until FAN AUTO is displayed. The |
ON – AUTO |
blower should stop operating within approximately one minute.
HEATING SYSTEM
1. Press | SYSTEM | until HEAT is displayed (it may already |
be displayed).
2.Press 
to adjust thermostat above room tem- perature to call for heat. The heating system should begin to operate.
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