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Honeywell T7351 manual

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Table of contents for the manual

  • Page 1

    INST ALLA TION INSTRUCTIONS 62-0258 T7351 Commercial Programmable Thermostat FOR SINGLE- OR MULTI-STAG E CONVENTIONAL/HEAT PUMP SYSTEMS APPLICA TION The T7351 Commerci al Programm able Therm ostat controls 24 V a c commercial sing le zone heating, ventilating and air conditioning (H V AC) equipm ent. The T7351 cons ists of a thermo stat an d subbas[...]

  • Page 2

    T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 62-0258 2 Fig. 1. T ypical location of t hermost at or remote-mount ed sensor . Mounting Subbase The subbase moun ts horizontally . IMPORT ANT • When using the intern al temperature or hu midity sensor , the device m ust be mounted horizont ally (with the LCD fac ing upwards). Pr ecise leveling is not need[...]

  • Page 3

    T7351 COMMERC IAL PROGRAMMABLE THER MOSTAT 3 62-0258 Fig. 4. Mounti ng thermost at on subbase. Wiring Follow equipment manu facturer wiring instructio ns when availabl e. Ref er to th e Wiring Diagra m secti on for t ypical hookups. A letter cod e is located near e ach terminal fo r identification. IMPORTANT All wiring must comply with lo cal elect[...]

  • Page 4

    T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 62-0258 4 Fig. 5. Th ermostat key loc ations. INST ALLER SETUP For most app lications, the the rmostat factory settin gs do not need to be chan ged. Revi ew the fac tory set t ings in T ab le 2. NOTE: When pow er is firs t applie d to the th ermostat, the display will show all segm ents (see Fig. 6). T able [...]

  • Page 5

    T7351 COMMERC IAL PROGRAMMABLE THER MOSTAT 5 62-0258 T able 3. Installer Setup . T ext Default Choices Notes DEGREES 0 0 -1 Degree T emperature Fo rmat 0: Degrees F 1: Degrees C CLOCK 0 0 - 1 Clock Display Format 0: 12 hour 1: 24 hour KEYLOCK 0 0 - 3 Keypad Lockout Level 0: None 1: Lockout all k eys except Set Day , Set Time, Set Date, Set Holidays[...]

  • Page 6

    T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 62-0258 6 XF AN HT YES YES or NO Extended Fan on Heat NO: None YES: 90 seconds XF AN CL NO YES or NO Extended Fan on Cool NO: None YES: 40 seconds STRTD EL 0 0 - 15 Sequentia l S tart Delay 0 to 150 seco nds in 10 secon d increments ADV ANCE NO YES or NO Advanced Settings NO: Hide YES: Show TMP LIM 3 0 - 5 T[...]

  • Page 7

    T7351 COMMERC IAL PROGRAMMABLE THER MOSTAT 7 62-0258 Holidays and 365 - Day Clock The T7351can be configured to schedule up to 10 separate holidays, e ach with a duration of up to 99 d ays. T o en able this func tion, the user m ust set the da te: 1. Press Set Day and Set T ime keys simultaneously . 2. Use the Up/Down key s to set the date to YES, [...]

  • Page 8

    T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 62-0258 8 a On: Continuous fan operation ( occupied and standby). Dur ing not occupied per iods, fan cycles wit h call for heat or cool. Auto: Fan cycles with call for heat or cool during all per iods. (See P roduct Data Sheet, for m 63-2605, f or more details). NOTES: The dis play retu rns to defa ult scree[...]

  • Page 9

    T7351 COMMERC IAL PROGRAMMABLE THER MOSTAT 9 62-0258 Get Factory Schedule (Info/Clear) Performing this operation reve rts the schedules to the factory defaults: 1. Press both Info an d Clear S tart Time . 2. The display give s the option to revert to FAC SCH. a. T o restore th e factory sched ule, press up ! or down " until the display indicat[...]

  • Page 10

    T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 62-0258 10 Options Utilizing Auxiliary Output There are two dehumidification o ptions that utilize the auxiliary output. They are: — Simple De humidificatio n. — Hot Gas Bypass Dehumid ification. Simple Dehumid(ification) The auxiliary output: — Energizes whe n RH rises above humidity high limit. — D[...]

  • Page 11

    T7351 COMMERC IAL PROGRAMMABLE THER MOSTAT 1 1 62-0258 Fig. 9. T y pical ho okup of T7 350F2010 in three-stage heat and three-s tage cool convent ional sys tem with one tran sformer . TROUBLESHOOTING GUIDE (T ABLE 7) T able 7. T roublesho oting I nformation. Symptom Possible Caus e Action Display will not come on. Thermostat is not be ing powered. [...]

  • Page 12

    T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Automation and Cont rol Solution s Honeywell Internatio nal Inc. Honeywell Limite d-Honeywell Limitée 1985 Douglas Dr ive North 35 Dynamic Drive Golden Valley, MN 55422 Toronto, Onta rio M1V 4Z9 customer.hone ywell.com ® U.S. Regi stered T rademark © 2007 Hone ywell Interna tional Inc. 62-0258 J.I. 01-07 [...]