Comfort Stat CP1717, Руководство пользователя, Страница: 4 / 8

Figure 1
Wiring Labeling
Ÿ Each wire coming from the wall to the existing thermostat is connected to a terminal point on that thermostat. Each of these terminal points is usually marked with a
code latter as shown in Table A below.
Ÿ
Note that this thermostat has multiple function terminals that allow Single­Stage Heat Pump capability. Standard systems use: Rh, Rc, G, Y, W. [Single­Stage Heat
Pumps use: R, Y, G, and O or B.] Table A below shows
the multiple functions of the terminals. Use the terminals that match your system.
Ÿ
The number of wires in your system can be as few as two (for heat only systems), as many as eight, or any number in between. If you follow the labeling procedures
correctly, you do not have to be concerned about how many wires there are.
Ÿ
There is often no terminal marking on the existing thermostat of two wire, heat only systems. Just connect either of the wires to the RH terminal, then connect the
other wire to the W terminal to complete the circuit.
Ÿ
IMPORTANT! BEFORE DISCONNECTING ANY WIRES, APPLY THE SELFADHESIVE LABELS PROVIDED TO THE WIRE AS SHOWN IN TABLE A BELOW. (For
example, attach the label marked W to the wire that toes to the W or H terminal on your existing thermostat.) IGNORE THE COLOR OF THE WIRES since these do
not always comply with the standard.
Ÿ After labeling wires, disconnect them from the existing thermostat.
Ÿ
Remove existing wallplate. To make sure wires do not fall back into wall opening, you may want to tape them to the wall.
Ÿ If hole in wall is larger than necessary for wires, seal this hole with insulating material so that no hot or cold air can enter the back of the thermostat from the wall.
This air could cause a false thermostat reading.
Table A
If the code letter on
your existing
Thermostat is
then mark the wire
with label shown
and connect to
thermostat terminal
shown
NOTE: Do not connect a “Common” wire (sometimes
labeled “C”) to any terminal on this thermostat. Tape up the wire and do not use. This wire provides electricity to non­battery
powered thermostats.
Mount wallplate and Thermostat
Ÿ
Remove the wallplate from your thermostat by pressing the release tab on the bottom of the thermostat. See Figure 2.
RH,R,VR or 4
24 Volt
­ or­
B
Reversing Valve operating in Heat mode.
(Single Stage Heat Pumps ONLY.)
Reversing Valve operating in Cool mode.
(Single Stage Heat Pumps ONLY.)
­ or­
O
24 Volt Cool
RC,VC
G or F
Fan
Y,Y1,C or M
Air Conditioning Compressor
­ or­
Single Stage Heat Pump
Compressor
W or H
Heating
R
24 Volt
(Single Stage Heat Pumps ONLY.)
Rh/B
W
R
Y
G
Rc
/O
Rh/B
Rc/O
G
Y
W
R