Owner's Manual

1.
Switch off
power
This
protects
you and avoids blowing a fuse
in your equipment. Adjust
the
temperature
on your old
thermostat
to
make sure your
system is off.
I
[
J.
I&
n
0
CD
or
~
CD
[]
I
Breaker box
Switch
3.
Check
your
system
If
your old
thermostat
is labeled 120Vor 240V
or
has
thick
wires
with
wire nuts, your system
is high voltage. Not sure?
Contact
support.
I
&
CAUTIO~:
Do
not connect Nest
to
J
high voltage wires.
----
2.
Remove
cover
Some covers pop off, while others need
to
be unscrewed.
'
'
'.,
'
o
~
ooo
..
4.
Remove
any jumper wires
Jumper
wires are
short
wires between
two
connectors.
You
won't
need
them.
An
R wire
can
go
into
either
Rc
or
Rh.
CD
~eW1
~c