Honeywell CT5OC - Manual (Page 2)

CONTENTS STEP
PREPARATION 1
THERMOSTAT FEATURES 2
REMOVING OLD THERMOSTAT 3
WIRE AND MOUNT NEW THERMOSTAT 4
CHECK OUT THE THERMOSTAT 5
THERMOSTAT SETTING 6
TROUBLESHOOTING 7
RECALIBRATE THERMOMETER 8
LIMITED oiii-VEAR WARfi^TY '
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R.T,
9-9f7 Ptinted in U.S.A.
Form Number 6S-S51J—2
©Honeywell Inc. 1ЭЭ7
THERMOSTAT
FEATURES
Top
Mounting Hole
(the-rmOstat to
wail or outlet
box)
Adjustable Heat
Artiejpator
Setting Lever
(CT50A, CT51A
only)
Mounting
ClipE itor cover)
whep tbe ian comes on it the fan comes
on immediately you need to add the
jumper noted in section 4 between
terminals 1 & 5, If there is a noticeable
detay before the fan comes on, there is
no need to add the jumper because your
furnace controls the far.
Fan Switch
fCTSIA only)
REMOVING OLD
THERMOSTAT
□ Begin by turning off power to the
heating/air conditioning system at
the main fuse panel. Most residential
systems have a separate switch box or
circuit breaker for disconnecting power
to the furnace.
Systeni Switch
(CT51A only)
Bottom Mounting
Hole
Temperature
Setting Leuer
□ II you have an
electric furnace, you
need to determine how your
fan is controlled. Turn it on
and adjust your present
thermostat so the heat
comes on, while observing
□ Remove cover of old thermostat­
cover normally snaps otf when
pulled firmly from the bottom. If it resists,
check for a screw that locks the cover or.
□ For CT50A or CT51A installation,
before removing the old
thermostat from the wall, look at it
carefully to locate the heat
ostat.
not match
MOSTAT
MARKED
5-wire
I cannot
rmostat;
lend a
ead-
fou may
binais 1 I
634D or
jid sub­
i and is;i
ig a fire
s before
□
For CT53A:
Connect wires to R and W for
750 mV systems. Connect to R and Y
tor 250 or 500 mV systems. Tighten the
screws.
■
.
■: :■
Push excess wire back into wall
and plug hole with nonflammable
insulation to prevent drafts from affecting
thermostat operation.
□ Grasp the thermostat cover at
the top and bottom with one
hand. Pull Outward on the bottom edge
of the thermostat cover until it snaps
free of the thermostat base.
□ Place a bubble level or plumb line against the ther­
mostat to find the ievel position. Start a screw in
the center of the bottom mounting hole. Move the temper­
ature setting lever if necessary to uncover the mounting
hole,
‘ Bubble Level
..
.
□ Fasten thermostat to wall or
vertical outlet box with □ screw
through the top mounting hole.
See step 2 for hole location.
Terminal Screws
(CT51A shown)
Plumb
Line
Plumti
Bob or
■ Weight
a..rK.:,
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