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III. Quickstart Guide
1. Record current wiring colors/functions
►
In order to properly connect wires from a pre-
existing thermostat to Comfort Window's screw
terminals, it is important to know what color
wires were connected to what functions on your
existing thermostat. If the wiring colors are not
easily distinguishable, label each wire with its
current function.
►
While there are some industry-wide coloring
conventions, some thermostat makers do not
follow these conventions; it is also possible that
whoever installed any previous wiring may not
have followed these conventions
* *
*Caution! It is very important to be careful
that the existing wires do not fall down into the
that the existing wires do not fall down into the
hole in the wall.
2. Turn off Electricity & Install Wall-plate
►
ALWAYS turn off electricity to the HVAC system
at the breaker box before connecting wiring and
before connecting thermostat to the baseplate.
Figure 2: Wallplate
.
3 of 24
► Using the provided screws and drywall anchors,
mount the wall-plate to the wall.
► Adjust the angle of the wall-plate utilizing the
slack given in each of the holes for each screw.
3. Connect thermostat wire to wall-plate
► For single compressor, single heater
installations (non-Heat Pump), wire the
thermostat as shown in Figure 3, according to
Chart 1. For any other HVAC configuration,
please refer to the Wiring Guide (Section 5).
► If a ground wire has not already been pulled to
the thermostat's location, first see if there are
any unused thermostat wires that you can use
for Common (C). Otherwise, it will be necessary
to run an 18 GUAGE ONLY wire down the wall
and feed it through the hole to the wall-plate.
Chart 1: Wiring Configuration for Single
Compressor, Single Heater Installations
Screw
Terminal
Connect To
Number
0
Jumper to 1
1
Jumper to 4
2
Jumper to 3
3
Jumper to 4
Compressor
4
Transformer
+24VAC
5
Compressor Control
6
Fan Control
7
Heat Control
15
-24VAC (Ground)
**Note: Brown or Black are the most common
colors for 24VAC ground; however, white and
blue are also frequently used.
* *
*Caution! While there are some industry-wide
color-coding conventions, some thermostat makers
color-coding conventions, some thermostat makers
do not follow these conventions, so it is imperative to
record the previous configuration (both color and
function) so the correct wire can be connected to the
appropriate location on Comfort Window's wall-plate.
PCB0001C-01-BHP-PDII0614
Std.
Function
Wire Color*
PWR
N/A
RC2
Red
RH2
Red
RH1
Red
RC1
Red
Y
Yellow
G
Green
W
White
C
Brown/Black**
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