Braeburn 140404 - Manual (Page 17)

Error Conditions
7
The zone panel continually monitors various components of the
zone system and will display a message when the following
monitored conditions are detected.
Cooling is disabled when Emergency Heat has been
selected on a heat pump system
Selecting emergency heat from a thermostat (See Installer
Option 20) in heat mode will disable compressor cooling in all
zones. The zone panel will display the following message when
Cooling has been disabled. To enable cooling, turn Emergency Heat
Off at the panel and/or the priority thermostat calling for emergency
heat and make a call other than emergency heat from the
priority thermostat.
Plenum HI Run Delay HI Limit
Displayed when the Plenum Temperature is exceeded during
equipment heating operation. All heating stages will be turned off
and the fan will be turned on until the plenum temperature returns
to the normal range. Service the system immediately to prevent
potential damage.
17
Plenum LO Run Delay LO Limit
Displayed when the Plenum Temperature is too low during
equipment cooling operation. All cooling stages will be turned off
and the fan will be turned on until the plenum temperature returns
to the normal range. Service the system immediately to prevent
potential damage.
Plenum Sensor Bad
Displayed when an error has been detected with the plenum
sensor. This error must be corrected by servicing the zone panel
plenum sensor. If the sensor is not operating correctly, the zone
panel will not call for additional stages of heating or cooling.