Honeywell CT53 User Manual

Owner’s Manual

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Mode d’emploi

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Manual de Uso

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CT50 Series

Thermostat

® U.S. Registered Trademark. Patents pending.

M23785

69-2040EFS-01

M23786

MERCURY NOTICE

If your old thermostat contains

mercury, contact your local waste

management authority for proper

disposal instructions.

TURN OFF POWER at heating/cooling system (or fuse/circuit-breaker panel).
Remove cover and thermostat, but leave wallplate with wires attached.

Temperature Control Range

•

45°–95°F (7°–35°C)

•

35°–85°F (2°–29°C); select models; for garages or other outbuildings.

Is there a sealed tube containing mercury?

If so, see mercury notice below.

Leave wallplate in place.

Old thermostat

Cover

Check package contents:

•

Thermostat

•

Wall anchors & screws (2 each)

•

Wire labels

Before you begin, make sure you have:

•

No. 2 Phillips & small pocket screwdrivers

•

Hammer

•

Level (optional)

•

Pencil

•

Drill and bit (3/16” for drywall, 7/32” for

plaster)

Getting started

Remove your old thermostat

Vertical Mount:

CT50 (24 Vac heating systems)

CT51 (24 Vac heating and cooling systems)

CT53 (750 mV or 12Vdc heating systems)

Horizontal Mount:

CT54 (24 Vac heating systems)

CT55 (24 Vac heating and cooling systems)