CNT-SVX04A-EN
Zone sensor
38
These setpoint limits only apply to the occupied and occupied standby heating
and cooling setpoints. These setpoint limits do not apply to the unoccupied
heating and cooling setpoints stored in the controller’s configuration.
When the controller is in unoccupied
mode, it always uses the stored
unoccupied heating and cooling setpoints.
The unit can also be configured to enable or disable the local (hardwired)
setpoint. This parameter provides additional flexibility to allow you to apply
communicated, hardwired, or default setpoints without making physical
changes to the unit.
Similar to hardwired setpoints, the effective setpoint value for a communicated
setpoint is determined based on the stored default setpoints (which determines
the occupied and occupied standby temperature deadbands) and the
controller’s occupancy mode.
Fan switch
The zone sensor fan switch provides the controller with an occupied (and
occupied standby) fan request signal (Off, Low, Med, High, Auto). If the fan
control request is communicated to the controller, the controller ignores the
hardwired fan switch input and uses the communicated value.
The zone sensor fan switch input can be enabled or disabled through
configuration using the Rover service tool. If the zone sensor switch is disabled,
the controller resorts to its stored configuration default fan speeds for heating
and cooling, unless the controller receives a communicated fan input.
When the fan switch is placed in the Off position, the controller does not control
any unit capacity. The unit remains powered and all outputs are driven to the
Closed position.
Upon a loss of signal on the fan speed input, the controller reports a Local Fan
Mode Failure diagnostic and reverts to using the default fan speed.
On/Cancel buttons
Momentarily pressing the On button during unoccupied mode places the
controller in occupied bypass mode for 120 minutes. You can adjust the number
of minutes in the zone controller configuration using Rover service tool. The
controller remains in occupied bypass mode until the override time expires or
until you press the Cancel button.
Communication jack
Use the RJ-11 communication jack (present on some zone sensor modules) as
the connection point from Rover service tool to the communication link—
when
