1.4
IDENTIFY
THE
WIRES
1.
If
the wall plate of your old thermostat has more than two wires coming out of the
wall,
you
will
need to label
the
wires.
Start by identifying the letters close to each
screw or terminal
on
which a wire
is
connected.
These
terminals may be located
on
either side of the plate.
2.
Disconnect and identify
each
wire
*.
3.
You
may
need
to
tape
the
wires
to
the
wall
to
keep them from falling back into
it.
If
the wall cavity
is
larger
than
necessary,
fill
it
with insulating wool
in
order to
prevent the infiltration of
warm
or cold air behind the thermostat.
* If your installation
is
recent,
the
colour
of
the wires should match the identification on the
mounting plate.
(Rh)
Red
rN) White
(Rc)
Blue
M
Yellow
(G)
Green
Heating power source
Heating
relay
Air
conditioning power supply
Air
conditioning relay
Fan
relay
3
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