Manuale d’uso / di manutenzione del prodotto T7351 del fabbricante 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.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Honeywell T7351 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Honeywell T7351 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Honeywell T7351 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Honeywell T7351 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Honeywell T7351, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Honeywell T7351.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Honeywell T7351. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Honeywell T7351 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
