CT53A
i
I
TALU
CTSOA, CT51A, CT53A
THERMOSTATS
CTSOA
Heating only
with
most
oil
heating
systems
HeatinglCooling
with
most
oil
heating
750
Rev.
systems
heatlng
millivolt
9-97
Millivolt
2
wire
4
wire
systems
R.T.
gas
gas
only
CT51
A
Form
Compatible
Compatible
CT53A
For
No.
69-02658-2
and
CTSlA
and
250,500,
PREPARATION FOR
INSTALLATION
1
Assemble
screwdriver
IMPORTANT
If the model number under the cover of your existing thermostat begins with the same
series of numbers as listed below, the Honeywell thermostat is compatiblewith-and can
be
installed on-yourexisting heating system. If notwe recommend that you contact your
local
heating contractor or dealer for professional installation.
T11~l~KMA1K54/r8022/T81~819K8~8~K~K87K~H26O-~Ol/
TMl1KM81C/TM17H-124E/lC30-10/1
1F30-311HF30-13/1F30-910
CT53A
FOR
MILLIVOLT
Make
0
contractor.
certain that your burner is operating especially if
inoperative
for
tools
required;
level
wirestripper
E30-10/1E30-11/1E30-910/lF30-10/1
SYSTEMS-Replaces TS822/1 E30-M)9/1 F30-604/1 F30-910
it
any length of time.
If
it
does not work, contact your
has been
local
F30-301/
heating
REMOVING OLD
THERMOSTAT
2
Begin
by
turning
off
residential systems have aseparate switch boxorcircuit breaker fordisconnecting
Moveowerof
Efonehrna-*
the bottom.
For
CTMA, CT51A
indication is showing, do not
0
Loosen
screws holding thermostat
Retain
the
is
funotioning
power to the heating system at the main fusepanel.Most
dd thermostatcover normally snaps off when pulled firmly from
if
it
resists,
check
for
a
screw
that
locks
the cover on.
Installation
old
smoothly.
thermostat from the wall, look
ent mechanism.
Make a note here
be
set
at
one
be
concerned; move on
thermostat for reference purposes until your newthermostat
See
to
exactly the same setting. The heat antidpator
of
a series
of
to
the wall, and
at
it
illustration under step 3 to help you
numbers representing the arrrent
to
carefully
of
the antidpator setting
the next step.
lift
away.
to
locate the
service.
for
a
period
of
one
(1)
thewanantyperkd, aprcductis
Thiswarrantyshall
damage
which
Hineywell's
above.
HONEYWELL SHALL NOT BE LIABLE FOR ANY CONSEQUENTIAL DAMAGES RESULTINGFROM ANY BREACHOFANY WARRANTY. EXPRESSEDOR
PRODUCT.
damages,
so
THIS
WARRANTY
THE WARRANTIES
HEREBY
EXCLUDEDBMONDTHEONEYEARDURATDNOFTHE
andtenlorriesdorotalbwlimlatbnonthedurationo(animpliedwarrarly,sotheabovellmlationmay
not apply
to
This
warranty
according
to pmvlnceorterrkory. This warranty
fmmwarrantiesandotherrights
BatterieslncludedwlthBatreryCperated
manufactured
if
any.
not
apply
occurred
while the product was in the pogsesslon of aconsumer.
sole
responsibility shall
Some
provinces
this limilation may
IS
IN LIEU OF ALL OTHER WARRANTIES, EXPRESSEDOR IMPLIED, AND
OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
you.
glves
you
by
Honeywell
if
it
shown by Honeywell that the
be
to
repalr
and
territories
do
nd
spedfic
andremedies
Umiled.
not
apply to
you.
legal
rights
is
contained
Productsareexdudedfrnmthewanantyastheyarend
Such
baneries
defect
or malfunctbn was
or
replace the product wkhln the therms stated
albw
and
you
In addition
are
covered
1MPLIED.APPLiCABLETOTHIS
the exclusbn or limitation of consequential
WARRANTY.Somepmvinces
may ako have
to
and
InStatutesrehtingtothesaleofthlsprodud.
by battery
not
a
other
modlication
manu(aclurePs
year from
defective
caused
rights which
of
or
subtractbn
Warrantv
by
vary
YOUR
HONEYWELL THERMOSTAT
Your new Honeywell CT50A Heating Thermostat will replace most 15
heating system thermostats. The CT5OA will control most gas
(NOT for heating/cooling
Your new Honeywell CT51A Heating/Cooling Thermostat will replace most 15
4-wire, heatingkooling system thermostats. The CT51A is suitable only for
heatingkooling systems (NOT
Your new Honeywell CT53A Heating Thermostat is suitable for
(mV) heating systems only.
WIRE
-NEW
or
heat pump systems).
for
heat pump systems).
AND MOUNT
THERMOSTAT
to
or
250,500
30
oil heating systems
or
750
-
3
Connect one of the 2 wires from the wall
of the thermostat. Tighten the screws.
Connect4wires from thewall to matching terminalson backof thermostat.Tighten
the screws.
CAUTION
to
each
of
the
two
terminals on the back
V,
2-wire
to
30
gas
millivolt
V.
or
oil
Connect wires to R and W for 750 mV systems. CQnRect to
0
mV systems. Tighten the screws.
Grasp the thermostat cover at the top and bottom with one hand. Pull
outwardon the topedgeofthe thermostatcover until itsnaps freeofthe thermostat
Q.
Carefully remove and discard the red plastic pin located above the mercury switch.
This pin protects this switch during shipment.
0
Fasten thermostat
1
mounting hole.
Place
your
screw,
supplied, in the center of the
Recheck
for
to
the wall with one
level across the top of the level it. Start the second
level positioning then
bo
firm1
of
the screws supplied, using the top
R
and
Y
Par
Ole.
ounting screws.
I7
If
Installing
P
or
The primary control is usually a gas valve, zone valve,
with the thermostat wires connected
below).
On
CT50A, CT5lA
MAKE SURE you have the current (anticipator setting) for your system.This is the
number you wrote in the box in step
step 2 this information can
the
CT50A CTSlA
be
2.
If
found printed on the primary control at the furnace.
to
you were unable
it.
(See
illustrations Of 3 types
OIL
BURNER CONTROL
or
to
find the current draw
a relay
or
burner control
of
primary controls
250
or
500
box
TERMINAL SCREWS
ICTSlA
SYOWN\
TOP MOUNTING HOLE
ANTICIPATOR SETTING LEVER
TEMPERATURE SETTING LEVER
ADJUSTABLE HEAT
(CT5OA, CT5lA ONLY)
MOUNTING CLIPS
(FOR COVER)
FAN SWITCH
(CT51A ONLY)
SYSTEM SWITCH
(CT51A ONLY)
BOTTOM
MOUNTING HOLE
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