Aprilaire 6303 User Manual
Option 1- If a heat pump thermostat was used, in zone 1, it is
equipped with an Emergency Heat setting that can initiate the
emergency heat mode. This is accomplished by moving the
thermostat mode selector switch or push button until
Emergency Heat is chosen. Then, by placing the zone 1
thermostat’s set point above the current temperature,
Emergency Heat will energize until the thermostat is satisfied.
Heat calls by any of the thermostats will then be satisfied by
the emergency heat until zone one makes a standard heat
call.
equipped with an Emergency Heat setting that can initiate the
emergency heat mode. This is accomplished by moving the
thermostat mode selector switch or push button until
Emergency Heat is chosen. Then, by placing the zone 1
thermostat’s set point above the current temperature,
Emergency Heat will energize until the thermostat is satisfied.
Heat calls by any of the thermostats will then be satisfied by
the emergency heat until zone one makes a standard heat
call.
Option 2- If a Heat/Cool (non heat pump) thermostat was
used in zone 1, emergency heat can only be accessed by
setting the Emergency Heat switch located on the Zoned
Comfort Control Panel to the emergency heat position. Then,
by placing any thermostat’s set point above the current
temperature while in the heat mode, Emergency Heat will
energize until the thermostat is satisfied. The accompanying
Red Light on the control panel enclosure signifies you are in
Emergency Heat mode.
used in zone 1, emergency heat can only be accessed by
setting the Emergency Heat switch located on the Zoned
Comfort Control Panel to the emergency heat position. Then,
by placing any thermostat’s set point above the current
temperature while in the heat mode, Emergency Heat will
energize until the thermostat is satisfied. The accompanying
Red Light on the control panel enclosure signifies you are in
Emergency Heat mode.
With this option the system will stay in the emergency heat
mode until this switch is turned to off.
mode until this switch is turned to off.
Note: Emergency Heat is generally much more expensive
to operate than the Heat Pump. Use only when necessary.
Your equipment may not include Emergency Heat.
to operate than the Heat Pump. Use only when necessary.
Your equipment may not include Emergency Heat.
Damper Operation (All Models)
When the Aprilaire Zoned Comfort Control Panel receives a
call and turns on the appropriate equipment, it also
automatically closes the dampers that serve the non-calling
zones and opens those in the calling zones. When all calls are
satisfied, the Control Panel initiates a purge cycle during
which time the dampers maintain their last position. After this
purge all dampers open.
When the Aprilaire Zoned Comfort Control Panel receives a
call and turns on the appropriate equipment, it also
automatically closes the dampers that serve the non-calling
zones and opens those in the calling zones. When all calls are
satisfied, the Control Panel initiates a purge cycle during
which time the dampers maintain their last position. After this
purge all dampers open.
Fan Operation
The Aprilaire Control Panels allow you to control fan operation
from any zone. Dampers in zones not calling for fan will close.
If continuous fan operation is desired in all zones, the fan must
be turned on at the thermostat in each zone.
The Aprilaire Control Panels allow you to control fan operation
from any zone. Dampers in zones not calling for fan will close.
If continuous fan operation is desired in all zones, the fan must
be turned on at the thermostat in each zone.