Installation Instructions

ManualsBrandsHoneywell ManualsThermostatCT51A

INSTALLATION INSTRUCTIONS

69-0265ES

CT50A, CT51A, CT53A

Thermostats

CT51A

CT50A Heating only

Compatible with most 2 wire gas and oil heating systems.

CT51A Heating/Cooling

Compatible with most 4 wire gas and oil heating systems

and electric heat. Will not work on Heat Pump systems.

CT53A Millivolt heating only

For 250, 500, 750 millivolt systems.

PREPARATION FOR INSTALLATION

Assemble tools required; screwdriver, level, wire stripper.

REMOVING OLD THERMOSTAT

! Begin by turning off power to the heating system at

the main fuse panel. Most residential systems have a

separate switch box or circuit breaker for

disconnecting power to the furnace.

! Remove cover of old thermostat. Cover normally

snaps off when pulled firmly from the bottom. If it

resists, check for a screw that locks the cover on.

MERCURY NOTICE

If this product is replacing a control that contains

mercury in a sealed tube, do not place the old

control in the trash. Contact your local waste

management authority for instructions regarding

recycling and proper disposal.

For CT50A, CT51A Installation

! Before removing the old thermostat from the wall, look

at it carefully to locate the heat anticipator adjustment

mechanism. See illustration below to help you

recognize the heat anticipator. Make a note

here _____ of the anticipator setting.

IMPORTANT

Setting the heat anticipator allows the thermo-

stat to maintain accurate temperature control.

MOUNTING CLIPS

(FOR COVER)

MOUNTING CLIPS

(FOR COVER)

TOP MOUNTING

HOLE

ADJUSTABLE HEAT

ANTICIPATOR

SETTING LEVER

(CT50A, CT51A ONLY)

FAN SWITCH

(CT51A ONLY)

SYSTEM SWITCH

(CT51A ONLY)

BOTTOM

MOUNTING HOLE

TEMPERATURE

SETTING LEVER

M11901

Summary of content (8 pages)

PAGE 1
CT50A, CT51A, CT53A Thermostats INSTALLATION INSTRUCTIONS MERCURY NOTICE If this product is replacing a control that contains mercury in a sealed tube, do not place the old control in the trash. Contact your local waste management authority for instructions regarding recycling and proper disposal. For CT50A, CT51A Installation ! Before removing the old thermostat from the wall, look at it carefully to locate the heat anticipator adjustment mechanism.
PAGE 2
CT50A, CT51A, CT53A THERMOSTATS ! Using a pencil point, move the heat anticipator pointer to the number it was set to on the old thermostat. If you could not find the anticipator setting on the old thermostat, use the setting for your type of system shown in the table below. Table 1. Heat Anticipator Settings. Your heating system Heat anticipator setting WIRE AND MOUNT NEW THERMOSTAT For CT50A ! Connect one of the 2 wires from the wall to each of the two terminals on the back of the thermostat.
PAGE 3
CT50A, CT51A, CT53A THERMOSTATS THERMOSTAT OPERATION ! On the CT51A, the system switch controls as follows: HEAT—heating system only operates. OFF—heating and cooling systems are disconnected. COOL—cooling system only operates. ! The fan switch controls as follows: AUTO—fan on when heating or cooling system operates. ON—fan operates continuously. NOTE: In the following instruction, disregard cooling directions if not applicable to your system. ! Turn on power to the heating/cooling system.
PAGE 4
CT50A, CT51A, CT53A THERMOSTATS LIMITED 1-YEAR WARRANTY Honeywell warrants this product to be free from defects in the workmanship or materials, under normal use and service, for a period of one (1) year from the date of purchase by the consumer. If at any time during the warranty period the product is determined to be defective or malfunctions, Honeywell shall repair or replace it (at Honeywell's option).
PAGE 5
Termostatos CT50A, CT51A, CT53A INSTRUCCIONES DE INSTALACION ADVERTENCIA SOBRE EL MERCURIO Si este producto está reemplazando un control que contiene mercurio en un tubo sellado, no tire el control viejo a la basura. Comuníquese con su autoridad local de gestión de desperdicios para obtener instrucciones respecto del reciclado y la forma de disposición adecuada.
PAGE 6
TERMOSTATOS CT50A, CT51A, CT53A ! Con la punta de un lápiz, mueva el puntero del anticipador hacia el número en el que estaba el termostato viejo. Si no puede encontrar el ajuste del anticipador en el termostato viejo, use el ajuste para su tipo de sistema que se muestra en la tabla que aparece a continuación. Tabla 1. Ajustes del anticipador térmico. Su sistema de calefacción Ajustes del anticipador térmico Vapor 1.2 Calefacción que funciona con agua caliente 0.8 Aire tibio de alta eficacia 0.
PAGE 7
TERMOSTATOS CT50A, CT51A, CT53A FUNCIONAMIENTO DEL TERMOSTATO ! En el modelo CT51A, los interruptores del sistema controlan lo siguiente: HEAT—opera el sistema de calefacción. OFF—desconecta los sistemas de calefacción y de refrigeración. COOL—sólo opera el sistema de refrigeración. ! Los interruptores del ventilador controlan lo siguiente: AUTO—ventilador encendido cuando funciona el sistema de calefacción o de refrigeración. ON—el ventilador funciona continuamente.
PAGE 8
TERMOSTATOS CT50A, CT51A, CT53A GARANTIA LIMITADA A 1 ANO Honeywell garantiza que este producto no tiene defectos relativos a la fabricación o a los materiales, si se hace un uso y se presta un servicio normales, durante un período de un (1) año a partir de la fecha de compra por el consumidor. Si en cualquier momento durante el período de garantía se verifica que el producto tiene un defecto o mal funcionamiento, Honeywell lo reparará o reemplazará (a elección de Honeywell).