Excel 10 Wall Module Options
A typical FCU installation will include an Excel 10 wall module
containing a 20k ohm NTC room temperature sensor and
additional features depending on the wall module type (see
Excel 10 wall module literature for further information).
Excel 10 FCU Controllers can use a return air sensor rather
than the sensor in the wall module if it is wired to the wall
module sensor input. Setpoint adjustments can be configured
as relative or absolute, and upper and lower limits can be set.
A configuration option for the fan speed switch allows it to be
disabled if not required. The bypass button can be configured
to override the control mode to "occupied" for a configurable
bypass time and to override the control mode to "unoccupied"
for an indefinite time, or it may be configured to only override
to "occupied". The button may also be used to cancel the
EXCEL 10 FCU CONTROLLER LNS PLUG-INS USER GUIDE
Common Temperature Control (Master/Slave Controllers)
When one or more Excel 10 FCU Controllers serve a
common area and a single temperature sensor is to be used,
a master/slave arrangement can be configured. One Excel 10
FCU Controller is configured for the local wall module with the
desired options. The other Excel 10 FCU Controller(s) will be
configured without wall modules and with certain network
variables bound with the master controller. Refer to
Application Step 6 of this document for more details.
The slave units must have the same HVAC
equipment connected to it as the master units.
The slave units will not use any internal temperature
setpoints or control algorithms. The master controller
determines heating/cooling output based upon
setpoints and occupancy and L
command mode status and communicates this to the
slave via the L