3-4
Connect Wiring to the SC102ZB Back Plate – Use table 3 .2 below to identify the desired configuration
Table 3.2: Wiring Configuration Checklist
Section 3
SC102ZB/ST103ZB Installation and Operation Manual
SC102ZB Fan Coil Controller Installation
Configuration
R
C
Gl
Gm Gh WY YA
Ac
Ac
Tp
Tx
Ts
Tc*
2-Pipe Heat Only
W
o
o
o
o
o
o
2-Pipe Cool Only
Y
o
o
o
o
o
o
2-Pipe Heat/Cool
Manual Changeover
W/Y
o
o
o
o
o
o
2-Pipe Heat/Cool
Seasonal Changeover
W/Y
o
o
o
o
2-Pipe Heat/Cool
w/Auxiliary Heat
W/Y
A
o
o
o
o
4-Pipe Heat/Cool w/Manual
or Auto Changeover
W
Y
o
o
o
o
o
=Required / o=Optional / W=Heat Valve Actuator / Y=Cool Valve Actuator / A=Auxiliary Heat
* If using more than one (Tp/Tx/Ts) terminal, it may be necessary to splice Tc.
Attach controller to the wiring mount by aligning the
connector pins .
Make sure the connector pins are not bent and that
the controller is fully seated on the wiring mount .
If an external antenna (sold separately) is required
due to insufficient radio coverage, attach the
antenna, as follows, before attaching the controller
to the wiring mount
Optional External Antenna (Sold Separately)
Use the ANT10RF External Antenna if there is insufficient radio signal at the ST103ZB Wireless
Remote or SS909ZB Remote Temperature Sensor .
Remove the antenna connector cover located on the bottom
of the SC102ZB Fan Coil Controller .
Avoid locations that place large metal enclosures,
piping or dense electrical wires between the
SC102ZB Fan Coil Controller and the ST103ZB
Wireless Fan Coil Remote .
Attach the external antenna to the connector, making sure
the nut is finger tight . DO NOT OVERTIGHTEN the nut .