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PROGRAMMABLE
THERMOSTAT
BY HONEYWELL
PROGRAMMING AND INSTALLATION
INSTRUCTIONS
Limited One-Year Warranty
Honeywell warrants this prcduct, excluding battery, to be free from defects in the workmanship or materials, under normal use and sewice,
for a pericxl of one (1) year from the date of purchase by tha consumer. If, at any lime during the warranty period, the product is defective or
malfunctions, Honeywell shall repair or replace it (at Honeywel~s option) within a reasonable period of time.
[t the product is defective,
(i) retUrn it, with a bill of sale or,other dated prcof of purchase, to the retailer from which you purchased it, or
(ii) package it carefully, af0n9 wdh Proof of purchase (including date of purchaae) and a short description of the
ma ffuncf ion, and mail it, postage prepaid, to the following address
Honaywall Inc.
Return Goods Department
1050 13erkafdre Lane
Plymouth, MN 55441-4437
This warranty does not cover removal or reinstallation coats. This warranty shall not apply if It is shown by Honeywell that the defect or
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, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY
OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS PRODUCT.
Some states do not allow the exclusion or limitation 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 MERCHANTABILIV
LIMITED TO THE ONE YEAR DURATION OF THIS WARRANTY. Some states do not allow Ilmitafions on how long an implied warranty lasts,
so the above limitation may not apply to you.
This warranty givas you specific legal rights, and You may have other r!ghts which vary from state to state.
If you have any questions concerning this warranty, please write our Customer Assistance Center, Honeywell Inc., P.O. Box 524, Minneapolis,
MN 55440-0524 or call 1-800-468-1502, Monday-Friday, 7:00 a.m. to 5:30 p.m., Central time. In Canada, write Retail Products ON1 5-02H,
Honeywell LimitecUHoneywell Limitee, 740 Ellesmere Road, Scarborough, Ontario Ml P 2V9.
TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U.S. AND CANADA
for
SaviW
l&F [5*C] d—
2
so%
~za%
3
Thermostat patents pending.
in Canada: Honeywell Limited/Honeywell Limit6e
Product Services ON 15-FFE
74o Ellesmere Road
Scarborough, Ontario Ml P 2V9
AND FITNESS FOR A PARTICULAR PURPOSE, IS HEREBY
35
SawrQSfciTv4c=3A-CUIy'
Gnc3-A.Oay
l&F [5-C] decrease.
"~~ m lwF [50CI dncrease+~F [*C] deciease
grfes WP+vxlmateiy 55 pemml ol these savings.) ~z,,~h
Printed in U.S.A. G.S. 7-93 @Honeywell Inc. 1993
Weekday/Weekend (5-day/2-day)
Programmable Heat and/or Cool
Low Voltage (20 to 30 Vat)
Thermostat and Mounting Plate
Model CT2400
fi
H
Q
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Summary of Contents

  • Page 1

    Plymouth, MN 55441-4437 This warranty does not cover removal or reinstallation coats. This warranty shall not apply if It is shown by Honeywell that the defect or malfunction was caused by damage which occurred while the product was in the possession of a consumer.

  • Page 2: Table Of Contents

    STEP 9 Mount The Thermostat ....................24 STEP 10 Check Thermostat Operation After Programming And installing ......25 STEP 11 Set The Fan And System Switches .

  • Page 3

    ~ Prepare For Installation Check Table 1 to make sure this thermostat is compatible with your system. If it is not, return to retailer. For more information, call Honeywell Customer Assistance, toll-free 1-800-468-1502. TABLE 1 -COMPATIBILITY CHART. System Type Gas-Standin~ Pilot...

  • Page 4

    We recommend Energizer batteries. •l Make sure the thermostat is set in the OFF position. El Use a coin to remove battery door.

  • Page 5

    ~ The temperatures cannot be set any higher than 88° F [31 NOTE: If you decide not to program the thermostat, it will automatically control heating at 68° F [20° C], and cooling at 78° F [26° C], 24 hours a day.

  • Page 6

    This guide can be used for programming your new thermostat. NOTE: Batteries are required for operation and programming. When inserting batteries, set system switch to OFF. Remove battery door (on thermostat left side) using a coin at the bottom. Follow instructions on pages 6 and 7.

  • Page 7

    A and B on the back of the thermostat. Use the heating system table shown in the illustration, (page 17) as a guide. The system on-time should be optimized according to the type of system to minimize room temperature swings.

  • Page 8

    NOTE: This thermostat does not have a setting for steam/gravity air. Cycles would not be long enough for accurate temperature control. IMPORTANT: When using a high efficiency furnace such as a 90 percent or greater Average Fuel Utilization Efficiency (AFUE) unit, adjust screw A OUT ONE TURN and screw B IN.

  • Page 11

    _ Mount The Thermostat A. ENGAGE TABS AT TOP OF THERMOSTAT AND MOUNTING PLATE. NOTE: To remove thermostat from wall, first pull out at bottom of thermostat, removing top last. *4 Check Thermostat Operation Programming And Installing HEATING Do not check heating system...

  • Page 12

    Exception: When Fan Operation Switch on back of thermostat is set to “E” position (see page 16), fan will operate with furnace only. FAN ON: The fan runs continuously.

  • Page 13: Troubleshooting Guide

    If temperature setting is higher than current tempera- ture, and SYSTEM ON indicator is lit, contact Honeywell Customer Assistance at 1-800-468-1502. Check that switch on thermostat is set to COOL. Check the system fuse or circuit breaker and replace or reset if necessary.

  • Page 14

    Toll-free Customer Assistance For all questions concerning this thermostat, please read and follow the instructions. If additional assistance is needed, call Honeywell Customer Assistance toll-free at 1-800-468- 1502, Monday-Friday, 7:00 a.m. -5:30 p.m. Central time. Before you call, please have the following information available: thermostat model number and date code, kind of heating/cooling system (i.e., hot water, warm air, oil, gas, etc.), and...

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