Filter
Top Products
7 69-1199—2
Replacing a Thermostat that has Three Wires
If
y
ou have three wires for a heatin
g
onl
y
s
y
stem and can operate the fan usin
g
the fan ON switch this thermostat
works with
y
our s
y
stem. However, some hot water (zoned) heatin
g
s
y
stems also have three wires. Your thermostat will
work onl
y
if
y
ou install an isolatin
g
rela
y
on these s
y
stems. For details, call
y
our local heatin
g
and/or coolin
g
contractor.
STEP 3. MOUNT THERMOSTAT WALLPLATE
❑ Separate the wallplate from the thermostat b
y
placin
g
y
our thumb or fin
g
ers between
the bottom of the wallplate and the thermostat, and pullin
g
the wallplate up and awa
y
from the thermostat. See illustration at ri
g
ht.
❑ Position the wallplate on the wall. Level the wallplate for appearance if desired. Use a
pencil to mark the two mountin
g
holes that best fit the application.
❑ Remove the wallplate from the wall. Drill two 3/16 in. holes in wall
(if dr
y
wall) as shown. For materials such as plaster or wood, drill
7/32 in. holes where marked. Gentl
y
, tap the (provided) anchors
into the drilled holes until the
y
are flush with the wall.
❑ Reposition the wallplate over the holes. Pull the wires throu
g
h the
wirin
g
openin
g
. Loosel
y
insert mountin
g
screws into each of the
holes
❑ Level the wallplate if desired. Thermostat functions properl
y
when
not level.
❑ Ti
g
hten mountin
g
screws.
M16427
WIRES
THROUGH WALL
WALL
MOUNTING
HOLES
M15044
MOUNTING
SCREWS
WALL
ANCHORS (2)