PG
7
PG
8
Please refer back to these guidelines for safe and secure wire
connections.
•
Take care
not to damage the labels
for each wire in handling.
•
Strip insulation 3/8 in. (9.5mm) from wire ends.
•
Connect labeled wires only to a terminal with corresponding letter.
•
Bend the wire slightly, insert the wire under the contact plate and
tighten the screw down onto the wire.
The Wire Label List shows wire
labels used on thermostats.
Please determine what wires you
have and select the correct wiring
diagram to "go to" on pages 8-9.
If you have a HEAT PUMP select a
wiring diagram on pg 9.
Before you Connect Wires
Caution
Do not allow
wires to touch
each other or parts on unit.
Wires must be routed through
the hole in the back plate, below
the terminal block, or they will
hit parts on the cover.
Make sure your wires are labeled
. This is necessary to determine which step-by-step
wiring diagram you should use. This may require you to find the 'other end' connection for
each wire on your heating or air conditioning equipment and read the label there.
If you have a Zoned Heating/Cooling system with multiple thermostats, please refer to
our website at www.radiothermostat.com/filtrete for installation notes or call 1-888-607-5824
Wire Connections
What Wires Do You Have?
Go To Page 13
Go To Page 14
WIRE LABEL LIST
R
- Single source power for heat/cool
(R connected to
RC and RH using the jumper wire)
RH or R
- Heating Power
RC
- Cooling Power
W
- Heating return
G
- Fan return
Y
- Compressor return
H
- Humidifier
(built into the furnace)
W2
-
2nd stage heat in NORMAL, auxiliary heat in PUMP mode.
A
- For 3 wire zoned heating systems
C
- AC power for the thermostat if available
O
- Damper control
(Zoned heating)
or heat pump
changeover valve (powered in COOL)
B
- Damper control
(Zoned heating)
or heat pump
changeover valve (powered in HEAT)
NOTE: Do
not connect both O and B on a heat pump. Connect O
to O & tape off B.
X - Tape off X
E - Tape off E
Go To Page 11
Go To Page 12
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