16
ZONEXCOMMANDER (PLUS) INSTALLATION WIRING DIAGRAM
NOTE: Each Command Center supports up to 4
RMODs
and a maximum of 20 communicating devices. When the application requires more than
H
V
A
C
U
N
I
T
SPDT, 24V
AC Relay
C
G
R
R
G
W1
4
2
5
1
3
BLOWER FAN RELAY
Fig. 2
Fig. 1
ELECTRIC HEAT FAN CYCLING
AUXILIARY BLOWER FAN RELAY
When W1 is energized from the
DIGICOM, ModCC
or
RMOD
, the fan
circuit (G) is not energized. For applications requiring the blower to be cycled
The W1 output signal is connected to the heating device input terminal and the
coil of the fan relay. This is required for electric heat and gas furnaces with no
fan control.
(See Fig. 2)
on a W1 heat output, a field supplied, 24-volt coil SPDT relay must be used.
All RX communication wires must be connected to the RX terminals.
All TX communication wires must be connected to the TX terminals.
The RX and TX wires should never intersect.
4
RMODs
or more than 20 communicating devices, additional Command Center(s) will be required. There must be separate communications circuit
(twisted pair Belden 8740) for each Command Center (channel).
(See Fig. 1)
