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19
Wiring Configurations
The following section provides the various
wiring configurations compatible with the
iDevices
®
Thermostat. Find the configuration that
matches closely to your old thermostat and note
which system type you have for later reference.
Check your old thermostat to see if it has one or
two Red/R wires. If you have two, connect one
to RC, one to RH, and remove the jumper. If you
have one R wire, connect it to RH and leave the
jumper in place.
A. Heat Only (One Stage)
Note: G wire is not required for hot-water baseboard or
steam radiator systems. If G wire is not connected for a warm
air heating system, Fan On mode will not be available.
Thermostat Settings
Stage:
Non-HP |
Type:
HE for electric, HG for gas/oil
systems | Fan wire G optional for HG type
Note: G wire is not required for hot water baseboard or steam radiator systems. If G wire is
not connected for a warm air heating system, Fan On mode will not be available.
HUM
NC
W2/E
W1/O/B
RH
RC
Y2
Y1
G
L
C
If your system has two R wires, either Rc and Rh, or R and Rc
If your system has two R wires,
either RC and RH, or R and RC:
Remove Jumper
between RC and RH
If your system has one R wire:
Keep Jumper
between RC and RH
NC
W2/E
W1/O/B
RH
RC
Y2
Y1
G
NC
W2/E
W1/O/B
RH
RC
Y2
Y1
G
