Gebruiksaanwijzing /service van het product T7351 van de fabrikant Honeywell
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PRODUCT DAT A 63-2666-02 T7351 Commercial Programmable Thermost at FOR SINGLE- OR MULTI-STAGE CO NVENTIONAL/HEAT PUMP SYSTEMS APPLICATION The T7351 Commercial Programmable Thermostat controls 24 V ac commercial singl e zone heating, ventilating and ai r conditioning (HV AC) equipment.
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-2666—0 2 ORDERING INFORMATION When purchasing replacement and modernizat io n products from your TRADELINE® whol esaler or distributor , refer to the TRADELINE® Catalog or price sheets for complete ordering number .
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 3 63-2666—0 2 T able 2. Default Setpoints. Fig. 1. Thermost at and Subbase Dimensions in inches (mm). Accessories: Duct Discharge Air Sensors: C7041B (6 or 12 in . [152 or 305 mm]), C7041C (18 in. [457 mm]), C7041J (12 ft.
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-2666—0 2 4 CAUTION Equipment Damage Hazard . Can damage the TIM connectio n beyond repair . Disconnect the TIM cable p rior to openi ng or closing the thermostat cover . NOTE: Allow sufficient clearance below the thermostat to plug in the TIM cable.
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 5 63-2666—0 2 Fig. 5. Nine TR21 Sensors Providin g a T emperature A veraging Network for T7351 Therm ostat. Fig. 6. Mounting the Subbase. Wiri ng CAUTION Electrical Shock or Equipment Damage Hazard. Can shock individuals or short equipment c ircuitry .
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-2666—0 2 6 a Factory jumper between RC and RH for syst ems with one transform er . b For changeover functional details, see Operation section. c HC connection is not needed when using a T R23-H sensor . Mounting Thermost at on Subbase (Fig.
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 7 63-2666—0 2 a In heat mode, when set for conventional heat, the equipment (i .e. plenum switch) cou ld power the fan despite the T7350. Fig. 8. T hermost at Key Locations. INST ALLER SETUP For most applications, the ther mostat factory settings do not need to be charged.
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-2666—0 2 8 a. If you want to save the ne w configuration, use the up or down key to change NO to YES before pressing Run Schedule . b. If you wan t the configurat ion to remain as it was before starting this change, ensure the display indicates SA V CFG NO and press Run Schedule .
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 9 63-2666—0 2 OA TSENS 0 0 - 1 Outdoor Air Sensor Selection 0: None 1: Remote Outdoor Air Sensor DA TSENS 0 0 - 1 Discharge Air Sensor Selection 0: None 1: R.
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-2666—0 2 10 Holidays and 365 - Day Clock The T7351can be configured to sche dule up to 10 separate holidays, each with a duration of up to 99 days. T o ena ble this function, the user must set the date: 1.
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 11 63-2666—0 2 4. Use the Up/Down keys to set the day , then press the key (Refer to T abl e 6 for valid day choices).
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-2666—0 2 12 a On: Continuous fan operation during occu pied periods. During not o ccupied perio ds and in standby mode when no motion is sensed, fan cycles with ca ll for heat or cool. Auto: Fan cycles with call for heat or co ol during all periods.
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 13 63-2666—0 2 T7351 Relay Logic All T7351 model thermostats contain at least four switching relays. In conventional applicatio ns, the relays control first stage cooling, first stage heatin g, fan, and auxiliary .
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-2666—0 2 14 — Recovery ramping applies between schedu led heat or cool setp oint changes from not occupi ed to standby and not occupied to occupied. — Other setpoint changes use a setpo int step change.
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 15 63-2666—0 2 control. The potentiometer adjus ts the minimum position of the economizer dampers, which pr ovide a minimum amou nt of fresh air for ventilation. The economizer reduces compre ssor run time, thereby saving energy and extending compressor life.
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-2666—0 2 16 T able 9. Default Auxiliary Relay Operations. a Simple dehumidification uses a normall y closed contact. The relay is closed when humidity is below the hig h limit. When the humidity is above the high limit, th e contact is open.
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 17 63-2666—0 2 DEHUMID HOT GAS BP The auxiliary output operates as shown in T able 10. T able 10. Hot Gas Bypass Dehumidification Logic. Auxiliary output during call for multiple cooling stages for two reasons: 1.
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 63-2666—0 2 18 Heat will not come on. No power to the thermostat. Check that X terminal is connected to the system transformer . Check for 24 V ac between X and RH terminals. If missing 24 V ac: • Check if circuit breaker is tripped; if so, reset circuit breaker .
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT 19 63-2666—0 2 WIRING DIAGRAM (FIGURES 14 AND 15) Fig. 14. T ypical Hookup of T7 351F2010 in Three-Stage He at and Three-St age Cool Conventional Syste m with One T ransformer . Fig. 15. T ypical Hook up of T7351F2010 in T wo-Stage Heat and Four-St age Cool Conventional System.
T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT Automation and Control Solutions Honeywell Internationa l Inc. 1985 Douglas Drive North Golden Valley, MN 55422 Honeywell Limited-Honeywell Limitée 35 Dynamic Dr ive Toronto, Ontario M1V 4Z9 customer.honeywell.
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