Manuale d’uso / di manutenzione del prodotto GAS-FIRED INDUCED-COUSTION FURNACES 373LAV del fabbricante Bryant
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NOTE: Read the entire instruction manual before performing any service or maintenance. This symbol → indicates a change since the last issue. These procedures are for size 44,000 through 154,000 Btuh input units. Index Page SAFETY CONSIDERATIONS ...
WARNING: The ability to properly perform mainte- nance on this equipment requires certain expertise, me- chanical skills, tools, and equipment. If you do not possess these, do not attempt to perform any maintenance on this equipment other than those procedures recom- mended in the User’s Manual.
1. Downflow/Horizontal Each furnace requires 2 filters which are installed in the return-air duct. (See Fig. 4 and 5.) To remove filters for cleaning or replacement, proceed as follows: a. Disconnect electrical power before removing blower access door.
9. If a greasy residue is present on blower wheel, remove wheel from the blower housing and wash it with an appropriate degreaser. To remove wheel: a. Mark blower wheel location on shaft before disassembly to ensure proper reassembly. b. Loosen setscrew holding blower wheel on motor shaft.
WARNING: Blower access door switch opens 115-v power to furnace control. No component operation can occur. Caution must be taken when manually closing this switch for service purposes. Failure to follow this warn- ing could result in electrical shock, personal injury, or death.
(8.) Reinstall cell inlet plates and burner assembly. Care must be exercised to center burners in cell openings. 11. Clean flame sensor with fine steelwool. 12. Remove old sealant from center panel and collector box flange and apply new sealant to collector box flange and reinstall on center panel, making sure all 8 screws are secure.
c. Remove control access door. d. BRIEFLY remove either wire from the main limit switch until LED goes out, then reconnect it. NOTE: If wire to main limit is disconnected longer than 4 sec, main blower starts, and retrieval request is ignored. 2. When above items have been completed, the following will occur: a.
Fig. 11—Furnace Control A99255 HUMIDIFIER TERMINAL (24-V AC 0.5 AMP MAX) LED OPERA TION & DIAGNOSTIC LIGHT HARNESS CONNECT OR 24-V TRANSFORMER SEC-2 SP ARE-1 SP ARE-2 EAC-1 EAC-ELECTR ONIC AIR CLEANER TERMINALS (115-V AC 1.
→ Fig. 12—Furnace Wiring Diagram A00304 PCB BLOWER OFF DELAY SELECTION CHART 90 SEC 135 SEC 180 SEC 225 SEC GVR H I/L O RELA Y SEC-1 SEC-2 PL1 3 2 1 6 5 4 9 87 LED TEST/TWIN BLOWER OFF DELAY G R Y.
Fig. 13—Service Label A96263 SERVICE 11 NO PREVIOUS CODE - Stored sta tus codes are er ased when power (115 V or 24V) to control is interrupted or 48 hours after ea ch fault is cl eared. 12 BLOWER ON AFTER POWER UP ( 115V or 24V) - Blower ru ns for 90 seconds, if unit is power ed up duri ng a call for hea t (R-W closed).
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Is circuit breaker closed? Close door switch and go to start. Is red LED status light on? Is door switch closed? Is red LED status light blinking rapidly without a pause? Is there 1 15v going to switch? Replace door switch. Replace control center . Replace transformer .
11 NO PREVIOUS F AUL T - Faults are erased after 48 hrs or whenever power (1 15v or 24v) is interrupted. Run system through a heating or cooling cycle to check system. 12 BLO WER ON AFTER PO WER UP (115V OR 24V) - Normal operation. Blower will run for 90 sec when furnace power is interrupted during a call for heat, R-W closed.
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A94328 SERVICE TRAINING Packaged Service Training programs are an excellent way to increase your knowledge of the equipment discussed in this manual, including: • Unit Familiarization • Maintenanc.
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 Bryant GAS-FIRED INDUCED-COUSTION FURNACES 373LAV 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 Bryant GAS-FIRED INDUCED-COUSTION FURNACES 373LAV - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Bryant GAS-FIRED INDUCED-COUSTION FURNACES 373LAV imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Bryant GAS-FIRED INDUCED-COUSTION FURNACES 373LAV ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Bryant GAS-FIRED INDUCED-COUSTION FURNACES 373LAV, 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 Bryant GAS-FIRED INDUCED-COUSTION FURNACES 373LAV.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Bryant GAS-FIRED INDUCED-COUSTION FURNACES 373LAV. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Bryant GAS-FIRED INDUCED-COUSTION FURNACES 373LAV 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.
