Installing The Wireless Control Card - Friedrich EMWRT1 Instruction Manual

Thermostat Installation

Installing the Wireless Control Card

Unplug the PTAC/ Vert-I-Pak* unit from power supply
Connect the low voltage wires to screw terminals on the PTAC/ Vert-I-Pak*
unit low voltage terminal block - refer to the Wiring Table to determine
proper connections.
Mount the control card to the PTAC/ Vert-I-Pak* unit.
Ensure that the Wireless Control Card antenna is not touching any metal
components of the PTAC/ Vert-I-Pak* unit.
Ensure that the Wireless Control Card Antenna is facing the thermostat on
the wall and is oriented so that any metal parts of the PTAC/ Vert-I-Pak* unit
do not obstruct the wireless communication to the thermostat and, in case
of a network installation, to other wireless control cards and the server.
Ensure that the control card is secured and cannot fall into the
PTAC/ Vert-I-Pak* unit Condensation Pan.
Plug in the PTAC/ Vert-I-Pak* unit to power supply.
Wiring Table - 24V AC
Wire Terminal
Color Letter
Black C
Red R
Yellow Y
White W
Orange O or B
Green GH
Purple GL
NOTE: If the PTAC/Vert-I-Pak* unit has only one (1) fan speed, connect both fan
control wires – Green and Purple – to the fan terminal (G).
* The wireless control card should never be installed inside the metal electrical control
enclosure/box of the PTAC/Vert-I-Pak unit. Failure to comply will result in obstruction to the
wireless communication. The control card is always to be mounted as shown on the pictures
on the next page.
Terminal
Connection
Common Black
24V
Compressor Yellow
Heat White
Reverse Valve Orange
Fan High Green
Fan Low Purple
Wiring Table - 24V DC
Wire Terminal
Color Letter
R
Red C
Y
W
O or B Reverse Valve
GH
GL
Terminal
Connection
24V
Common
Compressor
Heat
Fan High
Fan Low
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