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Number of Fan Calls currently being serviced. Check the panel
LED if it is necessary to determine exactly which zones are
calling for Fan Operation.
16
Equipment Plenum Temperature is displayed. When the included
plenum air temperature sensor is installed, the zone panel will
display the Plenum temperature in the range of 30 - 200˚ F.
Plenum Temperatures outside this range indicate an equipment error.
See Section 7 Error Conditions for a further explanation.
NOTES: When no zones are calling, the panel will command
all dampers to open.
• For maximum energy conservation, a purge will occur at the
end of each call.
• No calls will be answered until the purge is complete.
• Equipment staging is automatic based on time and plenum
temperature.
• Dampers will not close and staging will not occur if the plenum
temperature sensor is enabled but not connected or
functioning properly.
Emergency Heat Selection (Multi-stage Heat Pump Systems Only)
Emergency Heat can be selected at the main panel or from a Heat Pump Thermostat wired to the main panel.
No cooling calls will be answered if emergency heat is switched on.
To select Emergency Heat from the main panel:
1. Press and release the EM HEAT button located below the main display.
2. The display will update from HEAT CALLS to EM HEAT CALLS and will show COOL DISABLE to indicate that
no compressor calls will be answered.
3. To stop Emergency Heat, press the EM HEAT button again.
4. The display will update from EM HEAT CALLS to HEAT CALLS and COOL CALLS will return.
To select Emergency Heat from a thermostat
1.
Set Emergency Heat Thermostat to Emergency Heat switch position (only one thermostat can
control Emergency Heat)
NOTE: Configuration setting number 21 in section 4 selects which thermostat is used to activate Emergency Heat.
2. Raise heat setting on Emergency Heat Thermostat to create Emergency Heat call.
3. The zone panel display will update from HEAT CALLS to EM HEAT CALLS and will show COOL DISABLE to
indicate that no compressor calls will be answered.
4. To stop Emergency Heat, set the Emergency Heat Thermostat to a non-emergency heat position or
lower the temperature on the Emergency Heat Thermostat to end the emergency heat call.
5. The zone panel display will update from EM HEAT CALLS to HEAT CALLS and COOL CALLS.
NOTE: Activating Emergency Heat Mode disables cooling calls from all zones and answers all heat calls
with Emergency Heat.
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