Trane X13511542010 User Manual page 24

Installer Configuration Parameter Menu
Configuration Significance
parameters Default value
Comfort or economy
mode
Comf/eco
Default value =
Comfort
Reversing valve
operation O/B
re valve
Default value = O
Compressor/auxiliary
comp/aux interlock
Default value = Off
Notes for heat pump models: When the outside air sensor is not connected or is shorted, the
thermostat bypasses the heating / cooling lockouts and the low / high balance points. Also, when
set in Emergency system mode, the heat pump model bypasses heating lockout and permits
auxiliary heating whenever a heating demand occurs.
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Sets the operation and interaction mode of the heat pump with the auxiliary heat.
Comfort mode. In Heating mode.
If the heat pump is not able to satisfy the heating setpoint, the auxiliary heat will be energized to satisfy
the same heating setpoint.
Economy mode. In Heating mode.
If the heat pump is not able to satisfy the heating setpoint, the auxiliary heat will be energized to satisfy
only when the temperature has dropped 2.0°F (1.1°C) below the heating setpoint. Selecting economy
mode will add a deadband between the heat pump andand auxiliary heat in heating mode. The actual
temperature maintained will be lower than the true heating setpoint to maximize the heat pump
operation. When the outdoor air temperature drops below the low balance point, the deadband will
be eliminated and the auxiliary heat will maintain the true heating setpoint alone.
Economy mode. In Emergency mode.
If Emergency heat mode is selected, the
setpoint maintained, will be the heating setpoint.
Heat pump reversing valve operation
O will energize the valve in cooling operation.
B will energize the valve in heating operation O or B
Sets the operation and interaction mode of the heat pump with the auxiliary heat.
Interlock Off. In Heating mode.
If the heat pump is not able to satisfy the heating setpoint, the auxiliary heat will be energized at the
same time as the heat pump stage. Typically applies when the air handler heat pump coil is installed
before the auxiliary heat. (all electric systems)
Interlock On. In Heating mode.
If the heat pump is not able to satisfy the heating setpoint, the auxiliary heat will be energized and
the heat pump will be cut off. Typically applies when the air handler heat pump coil is installed after
the auxiliary heat. (add on systems) There is a 2 minute delay to restart the heat pump, when the
auxiliary heat is shut down
Off or On
Adjustments
BAS-SVU10C-EN