Owner's Manual

5.
Label wires
Peel
off
the
labels below and
attach
them
to
the
thermostat's
matching wires.
Use
the
white labels
for
any
W3,
E,
HUM
or
DEHUM
wires.
The*
connector can only connect
to
one
of
these wires.
See
two
names
for
each connector on your old
thermostat's
backplate? Visit nest.com/2labels
for
help.
6.
Disconnect wires
and
remove
base
After
removing
the
base, we recommend
gently wrapping
the
wires around a pen
or
pencil
to
ensure they
don't
fall
back into
the hole in
the
wall.
'
'
'
'
ffi Remember,
the
power
to
your
HVAC
system
must
be
off
to
avoid
blowing a fuse in your equipment.
'
..
Two labels
m
Tip:
Take
a
picture
of
the
w1res
on
your
old
thermostat
to
help you
remember.
7.
Mark where
screws
will
go
Use
the
bubble level
to
make sure
the
Nest
Thermostat
is level.
.