Configuration Parameters - Honeywell SERIES COMMUNICATING TB7600 Installation Instructions Manual

TB7600 SERIES COMMUNICATING RTU/HEAT PUMP THERMOSTATS
Table 16. Additional Configuration Parameters for Heat Pump Models
Configuration
parameters Significance Default value
High balance point
High bp
Default value = 90 F (32.0 C)
Function will only be enabled if OS
(outside air temperature sensor) is
connected.
Low balance point
Low bp
Default value = -12 F (-24 C)
Function will only be enabled if OS
(outside air temperature sensor) is
connected.
Comfort or economy mode
Comf/eco
Default value = Comfort
Reversing valve operation O/B
Re valve
Default value = O
Compressor/auxiliary interlock
Comp/aux
Default value = Off
NOTE: 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 heat pump models, when set in Emergency
system mode, bypass heating lockout and permits auxiliary heating whenever a heating demand occurs.
62-2016—05
In Heating or Auto mode, it is the outside air temperature value
at which the auxiliary heat will be cut off. Above that value,
only the heat pump will be used to maintain the heating
setpoint
34 F to 90 F (1.0 C to 32.0 C)
In Heating, Cooling or Auto mode, it is the outside air
temperature value at which the heat pump operation will be
cut off. Below that value, only the auxiliary heat will be used to
maintain the heating setpoint
-40 F to 30 F (-40 C to -1.0 C)
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 and 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
20
Adjustments