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CDC - (Field Supplied)
The Central Desk Control (CDC) 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.
NOTE: Mode 6 in AUX SET must be set to ON to
operate the Zoneline on remote thermostat.
Remote Thermostat
The Remote Thermostat Connectors are included
with each Zoneline. If required, order a replacement
(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,
the Zoneline will operate slightly di erent when
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 came with 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
GL
Low indoor fan
GH
High indoor fan
B
Reversing valve
Y
Compressor
W
Resistance Heat
C
24 VAC
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