Instruction/ maintenance manual of the product Chronotherm IV T8602D Honeywell
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® U.S. Regi stered T rademar k Copyright © 2003 Honeywe ll International Inc. • • All Rights Reserved INSTALLATION INSTRUCTIONS 69-1510- 4 T8602D Chronotherm® IV Programmable Thermostats APPLIC.
T8602D CHRONOTHERM® IV PROGRAMMABLE THERMOSTATS 69-1510-4 2 Fig. 1. T ypical loca tion of the rmostat. Fig. 2. Mounting the wallplate. WIRING All wiring must comply wit h local electrical co des and ordinanc es. Refe r to Fig. 3 through 6 for typi cal hooku ps.
T8602D CHRONOTHERM® IV PROGRAMMABLE THERMOSTATS 3 69-1510-4 Fig. 4. T ypical hookup in heat and cool sy stem with one tran sformer. Fig. 5. T ypical hookup in mil livolt age heat ing circuit . Fig. 6. T ypical hookup in mil lvolt age heati ng and 24 V ac cooling circuit.
T8602D CHRONOTHERM® IV PROGRAMMABLE THERMOSTATS 69-1510-4 4 Using Thermostat Keys The thermo stat k eys are use d to: • set curr ent day and t ime, • program ti mes and setpoint s for he ating an.
T8602D CHRONOTHERM® IV PROGRAMMABLE THERMOSTATS 5 69-1510-4 Temperature Settings Refer to T abl e 2 for the defa ult program se ttings. If the daytime en ergy savi ngs perio d is not used , press th e period k ey (Leave or Return) un til the t ime is blan k.
T8602D CHRONOTHERM® IV PROGRAMMABLE THERMOSTATS 69-1510-4 6 T a ble 3. Thermos ta t Inst aller Setu p Options. Select Installer Setup Number (Press Tim e ∆ key to change) Factory Se tting Other Choice s (Press or k ey to change) Actual Setting Display Descrip tion Display Descriptio n Not Used.
T8602D CHRONOTHERM® IV PROGRAMMABLE THERMOSTATS 7 69-1510-4 IMPORT A NT Review the setting s to confirm th at they match the system. P ress Run Progra m to exit the Inst aller Setup. The thermos tat ha s saved the Inst aller Setup c hanges and initia ted a reset in order to ope rate using the new settings.
T8602D CHRONOTHERM® IV PROGRAMMABLE THERMOSTATS 69-1510-4 8 Setting Current D ay and Time 1. Press Set Current Da y/Ti me. NOTE: On initial p owerup or after an e xtended power loss, 1:0 0 pm flashe s on the dis play unt il a key is presse d. 2. Press Day until the cu rrent day is disp layed.
T8602D CHRONOTHERM® IV PROGRAMMABLE THERMOSTATS 9 69-1510-4 NOTE: Press a ny key and the disp layed numbers will ch ange. Press Time ∇ to go to th e previous test and Time ∆ to go to the nex t test. The Run Program key does not exit this test. Press Time ∆ or T ime ∇ and then the Run Program key t o exit.
T8602D CHRONOTHERM® IV PROGRAMMABLE THERMOSTATS 69-1510-4 1 0 THERMOSTAT INFORMATION 1. Press the Time ∆ key to access the thermostat information. 2. Press the increase key to d isplay the production date code. Th e first two large digits are the mont h and the third digit is the last dig it of the year.
T8602D CHRONOTHERM® IV PROGRAMMABLE THERMOSTATS 1 1 69- 1510-4 TROUBLESHOOTING GUIDE T able 6. T roubles hooting Gu ide. Symptom Possible Ca use Action Display will not come on. Thermostat is not be ing powered. • Check if batter ies are present an d installed correctly .
69-1510-4 G .H. Rev. 03-03 www .honeywell.com/yourhome Printed in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers. Automation and Control Solu tions Honeywell Intern ational Inc.
An important point after buying a device Honeywell Chronotherm IV T8602D (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
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