Instruction/ maintenance manual of the product T8665A Honeywell
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® U.S. Regi stered T rademar k Copyright © 20 02 Honeywell • • All Rights Reserv ed INSTALLATION INSTRUCTIONS 69-1535-3 T8665A Chronotherm ® IV Deluxe Programmable Wireless Thermostat APPLICATION The T8665 C hronotherm ® IV Wireless T hermostat provides electro nic control of 24 V ac heating and cooling systems.
T8665A CHRONOTHERM® IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT 69-1535-3 2 Fig. 1. T ypical thermost at l ocation. Fig. 2. Mounting the wallplate. Mounting Thermost at 1. Engage t abs at the t op of the th ermost at and wall - plate. See F ig. 3. 2. Press lower edge of case to close and latch.
T8665A CHRONOTHERM® IV DELU XE PROGRAMMABLE WIRELESS THERMOSTAT 3 69-1535-3 Using Thermosta t Keys The thermo stat k eys are use d to: • se t curren t day and ti me.
T8665A CHRONOTHERM® IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT 69-1535-3 4 5. Attac h the zone numb er stick ers, incl uded with t he thermostat, onto t he thermostat case on the inside of the thermo stat cover . See Fig. 5. Fig. 5. Zon e sticker s included with T866 5A Thermostat.
T8665A CHRONOTHERM® IV DELU XE PROGRAMMABLE WIRELESS THERMOSTAT 5 69-1535-3 INSTALLER SETUP NOTE: For most applications , the thermostat fa ctory- settings do not need to be ch anged. Review the factory default settings in T able 3 a nd, if no changes are n ecessary , go to the Installer Self- T est section.
T8665A CHRONOTHERM® IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT 69-1535-3 6 T a ble 3. Th ermostat Installer Setup Op tions. Select Installer Setup Number (Press Time V key to change) Factory Set ting.
T8665A CHRONOTHERM® IV DELU XE PROGRAMMABLE WIRELESS THERMOSTAT 7 69-1535-3 a Number 2 must b e set to 1 to e xtend fan ope ration. IMPORTANT Review the setting s to confirm th ey match the system.
T8665A CHRONOTHERM® IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT 69-1535-3 8 Setting Current D ay and Time 1. Press Set Current Da y/Ti me. NOTE: On initial p owerup or after an extended powe r loss, 1:0 0 pm flashe s on the dis play unt il a key is presse d.
T8665A CHRONOTHERM® IV DELU XE PROGRAMMABLE WIRELESS THERMOSTAT 9 69-1535-3 INSTALLER SYSTEM TEST Use the Installer System T e st to check the thermostat operation. Refer to T abl e 4 for a list of the available Installer System T ests. CAUTION Equipment Damag e Hazard.
T8665A CHRONOTHERM® IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT 69-1535-3 1 0 Thermostat Information 1. Press the Time key to access the thermostat infor- mation.
T8665A CHRONOTHERM® IV DELU XE PROGRAMMABLE WIRELESS THERMOSTAT 1 1 69-1535-3 TROUBLESHOOTING GUIDE For trou bleshoot ing, s ee T able 6. T able 6. T roublesh ooting Guide. Symptom Possible Ca use Action Display does not come on. Thermostat is not be ing powered.
6 9 - 1 5 35 - 3 G . H. Re v . 1 1 - 0 2 P r int e d in U.S.A. w w w .h o n e y well.co m /y o u r h o me T8665A CHRONOTHERM® IV DELUXE PROGRAMMABLE WIRELESS THERMOSTAT Automation and Control Solu ti.
An important point after buying a device Honeywell T8665A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
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If you already are a holder of Honeywell T8665A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Honeywell T8665A.
However, one of the most important roles played by the user manual is to help in solving problems with Honeywell T8665A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Honeywell T8665A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
