Honeywell CT62A User's Manual
Contents
1. Honeywell CT62A B Line Voltage Electric Heat Thermostats Installation Instructions CT62A provides single line break CT62B provides double line break Temperature Range 50 F to 80 F 10 C to 25 C Electrical Ratings 60 Hz noninductive 22A at 120 240 Vac 19A at 277 Vac Do It Yourself models Your Honeywell Thermostat Your new Honeywell CT62 Electric Heating Thermostat provides line voltage control of a radiant cable electric baseboard and resistive rated fan forced heaters within the ratings listed above A WARNING This thermostat is a line voltage control 120 Volts to 240 Volts Do not install it if you are not completely familiar with house wiring If handled improperly there can be risk of a 120 Volt to 240 Volt electric shock hazard which may cause serious injury or death 1 PREPARATION occur if you follow these instructions STEP BY STEP It is recommended that as you read understand pen by reviewing the ratings listed above time If the system does not work contact your local electrician for assistance THERMOSTAT MOUNTING DIMENSIONS FRONT VIEW SIDE VIEW a 1 3 4 dort 1 2 13 48 4 2 1 8 54 Honeywell as 2 7 8 73 l 1 1 2 1 2 13 39 Proper installation of your Honeywell thermostat will and complete each step you check V it off with pencil or Check thermostat suitability for your hom2. INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING DIRECTLY OR INDIRECTLY FROM ANY BREACH OF ANY WARRANTY EXPRESS OR IM PLIED ORANY OTHER FAILURE OF THIS PRODUCT Some states do not allow the exclusion of incidental or consequential damages so this limitation may not apply to you THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT THE DURATION OF ANY IMPLIED WARRANTIES INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICU LAR PURPOSE IS HEREBY LIMITED TO THE ONE YEAR DURATION OF THIS WARRANTY Some states do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to your This warranty gives you specific legal rights and you may have other rights which vary from state to state Honeywell Home and Building Control Home and Building Control Honeywell International Inc Honeywell Limited Honeywell Limit e 1985 Douglas Drive North 35 Dynamic Drive Golden Valley MN 55422 Scarborough Ontario Printed in U S A on recycled paper containing at least 10 MIV 4Z9 post consumer paper fibers
3. top and bottom ends with fingers and pulling outward Connect wires to the thermostat as shown in the applicable wiring diagram Push the wires into the outlet box and insert the thermostat into the box for mounting by pushing against top and bottom of the thermostat base IMPORTANT Do not press on setting knob Secure the thermostat to the box with the two captive mounting screws provided Replace thermostat cover Set knob to desired room temperature IMPORTANT Aough handling or strong pressure can damage knob or sensing element and change calibration u HOT L2 ELECTRIC HEATER ELECTRIC HEATER POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED A BREAKS ON POSITIVE OFF A EXPOSED UNUSED LEADWIRES TO BE PROPERLY INSULATED A THERMALLY ACTIVATED BREAKS ON TEMPERATURE RISE MAKES ON TEMPERATURE FALL CAUTION SPECIAL SERVICE CO ALR SOLDERLESS CONNECTORS MUST BE USED WHEN CONNECTING WITH ALUMINUM CONDUCTORS OTHERWISE A FIRE HAZARD CAN RESULT M8420 69 0829 1 5 CHECK OUT THERMOSTAT Turn on the power to the heating system Turn setting knob all the way clockwise O listen for clicking sound as switch makes contact Electric heater should begin operation Turn knob all the way counterclockwise A listen for clicking sound as switch breaks contact Electric heater should shut off 6 SETT
4. ING THERMOSTAT Begin with setting knob at 70 F 20 C on the scale If this setting is not satisfactory after at least two hours of operation turn setting knob upscale to raise the temperature or downscale to lower the tempera ture Move knob only a degree each time M8422 7 TROUBLESHOOTING Your Honeywell thermostat requires little or no attention Most problems can generally be traced to the following Symptom Checkout SSC oO No heat Make sure power is on at Heater should start to warm up within two minutes If not main service panel Turn contact qualified electrician to check thermostat and heater the temperature setting knob fully clockwise Improper connections to With power to circuit OFF tighten all wiring connections Repair thermostat any frayed or broken wires Contact a qualified electrician for assistance Heater never turns Turn temperature setting Heater should start to cool within minutes If not turn off power off knob fully at the main service panel and contact qualified electrician counterclockwise Thermostat setting Thermostat affected by Contact electrician to change the location The thermostat and thermometer drafts or radiant heat should be about 5 ft 1 5m above the floor and on an inside reading disagree wall Thermometer is out of Recalibrate See step 8 calibration The heat from your hand will affect the diaphragm 8 CALIBRATION sensor Re
5. KROB scale ring counterclockwise until the CG 12 o clock position of the ring agrees with the cover thermometer va 3 69 0829 1 Limited One 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 defective or malfunctions Honeywell shall repair or replace it at Honeywell s option within a reasonable period of time If the product is defective i return it with a bill of sale or other dated proof of purchase to the hardware or home center store from which you purchased it or ii package it carefully along with proof of purchase including date of purchase and a short description of the malfunction and mail it postage prepaid to the following address Honeywell Inc RG Department in Canada Honeywell Limited Honeywell Limitee 1050 Berkshire Lane 740 Ellesmere Road Plymouth MN 55441 4437 Scarborough Ontario M1P 2V9 This warranty does not cover removal or reinstallation costs This warranty shall not apply if it is shown by Honeywell that the defect of malfunction was caused by damage which occurred while the product was in the possession of a consumer Honeywell s sole responsibility shall be to repair or replace the product within the terms stated above HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND
6. e s system Make certain that your heating system is working especially if it has been inoperative for a length of Carefully unpack your new thermostat To avoid damage to the sensing element do NOT remove the thermostat cover until wiring has been completed Save packages of screws instructions receipt and proof of purchase 3 REMOVE OLD THERMOSTAT WARNING Begin by turning off power to the heating circuit at the main service panel 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 Loosen screws holding thermostat base to outlet box and lift away Disconnect wires from old thermostat As you disconnect each wire tape the end and label it with 3 1 4 the letter of the terminal designation to make reconnection to new thermostat easier raul Check the old insulation for cracks nicks or fraying and apply high quality plastic tape where necessary for adequate insulation M5795A Retain the old thermostat for reference purposes and until your new thermostat is functioning smoothly S M e Rev 11 94 e Honeywell Inc 1994 Form Number 69 0829 1 4 WIRE AND MOUNT NEW THERMOSTAT Turn the temperature setting knob to 65 F 18 C This will prevent accidental damage to the knob stop during mounting Remove thermostat cover by grasping the
7. place thermostat cover wait five minutes and recheck calibration The CT62 Thermostats are calibrated at the factory using precise instruments under closely controlled conditions Recalibration should not be necessary Allow the thermo stat to operate for several hours before checking the calibration The CT62 Thermostat vapor filled dual diaphragm sensing element is affected by barometric pressure and altitude Temperature deviations of 1 F 0 5 C are normal If the thermostat is mounted in a suitable location and still appears out of calibration check calibration as follows THERMOSTAT BASE Check Calibration Sy Turn the setting knob clockwise until the switch makes clicking sound The heating equipment and fan start No recalibration is necessary if the thermostat switch makes with the thermostat setting at the same temperature as indicated on the thermometer If the thermostat setting differs from the thermom eter record the temperature difference and recalibrate as instructed in the Recalibration Procedure section SETTING KNOB a9 th AT 12 O CLOCK Recalibration Procedure POSITION Note the temperature difference between the temperature setting and the thermometer SCALE RING Remove the thermostat cover Rotate setting knob clockwise y until you hear switch click Hold the setting knob firmly and rotate the set point SEMNE
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