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Central Desk Control (CDC - Field Supplied)
The Central Desk Control is a feature that allows the
Zoneline to be made operable/inoperable from a
remote location. Operation of the feature requires
that an ON/OFF switch at the remote location be
wired to the two CDC terminals on the control panel
of the Zoneline. When the remote switch is CLOSED,
the Zoneline cannot be operated in the FAN, COOL,
or HEAT modes by the control. The Freeze Sentinel
and the Heat Sentinel features remain operable.
When the remote switch is OPEN, the Zoneline is
fully operational by the control.
The RAKCDC accessory must be used with a Central
Desk Control system. No "common busing" is
permitted. In other words, one switch and two wires
per Zoneline.
External Fan (Field Installed)
When connected, an auxiliary or external fan can be
controlled with the indoor fan motor on the Zoneline.
Connections provide 24 VAC to energize a remote
relay.
The RAKCDC accessory must be used when using an
external fan.
Ext.
Fan
Red (common)
CDC
Ext. Fan
CDC
Red
Remote Thermostat
The Remote Thermostat Connectors are included
with each Zoneline (Part #: WP26X20983).
When connected to a remote thermostat, the
indoor air temperature sensing is shifted from the
Zoneline to the remote thermostat. For this reason,
connected to a remote thermostat.
IMPORTANT: The Zoneline thermostat connections
provide 24 VAC only. If using a digital/electronic wall
thermostat, it must be set to 24 VAC setting (see the
installation instructions that accompany the wall
thermostat).
NOTICE: Damage to a wall thermostat or to the
Zoneline electronics can result from improper
connections. No line voltage connections should be
made to any circuit. Isolate all wires in the building
from line voltage.
R
24 VAC RED
GL
Low indoor fan TAN
GH
High indoor fan
GREEN
B
Reversing valve BLUE
Y
Compressor YELLOW
W
Resistance Heat
WHITE
C
Common BLACK
CDC Switch
Connect to external
fan relay
– 26 –
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