Manuale d’uso / di manutenzione del prodotto TC-049-R2 del fabbricante A.O. Smith
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A.O . SMITH SER VICE HANDBOOK T he first por tion of this Ser vice Handbook addresses service issues associated with Residential Gas W ater Heaters that are atmospherically vented and use a thermocouple as their electrical source.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 1 TABLE OF CONTENTS Page Introduction Terms ......................................................... 1 Tools .
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 2 Qualifications Tools Required: For servicing gas mod.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 3 GENERAL SECTION SERVICE GUIDELINES MISCELLANEOUS INFORMATION Draw ef ficiency is the quantity of hot water available to the consumer before the outlet water temperature decreases 25 degrees F.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 4 General Section – continued % Thermal Efficiency = (GPH X 8.25 X Temp. Rise X 1.0) divided by BTU/H Input BTU Output = GPH X 8.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 5 INSTALLATION OF RESIDENTIAL GAS WATER HEATER Exhaust Vent to Outside of Building Union See Manual and Labels For Installation Clearances Temperature And Pressure Relief Valve – Do Not Reuse Old Valve.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 6 RESIDENTAL GAS WATER HEATER SERVICE This portion of .
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 7 Residential Gas – continued Burner: The burner ass.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 8 Residential Gas – continued Temperature: Two metal probes mounted onto the back of the control are immersed inside the tank water.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 9 Residential Gas - continued Water Flow: When a hot water faucet is opened, water pressure from the well tank or street main forces cold water into the water heater.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 10 Residential Gas - continued Service: Air: A gas burning appliance requires the oxygen contained in 12.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 11 Residential Gas – continued The instruction manual gives guidelines under “Air Requirements” and “Unconfined “ or “Confined Space” sections.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 12 Residential Gas - continued Sooting causes : If … … then the burner is clean but the chamber and/or flue are sooted check for lack of supply air.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 13 Residential Gas - continued Electrical Testing– c.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 14 Residential Gas – continued Condensation is a mil.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 15 Residential Gas – continued Exhaust Venting Notes Follow current National Fuel Gas Code requirements for proper installa tion.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 16 STANDARD RESIDENTIAL ELECTRIC WATER HEATERS INSTALL.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 17 STANDARD RESIDENTIAL ELECTRIC WATER HEATERS This portion of this manual applies to the Operation and Servicing of Residential Electric, Tank Type, Water Heaters.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 18 STANDARD RESIDENTIAL ELECTRIC WATER HEATER SERVICE GUIDELINES Construction See “General Section” for features co mmon to both gas and electric models.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 19 Residential Electric – continued Since the element (s) are - very nearly - totally immersed in the tank, thermal efficiency is assumed to be 100%.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 20 Residential Electric – continued Surface Mounted Thermostat (s) and High Limit (s) The thermostats and high limits are held against the side of the tank.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 21 Residential Electric – continued After having con.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 22 Residential Electric – continued Normal Sequence of Operation C-2 Circuit – Standard on most single element water heaters.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 23 Residential Electric – continued A-6 Circuit • .
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 24 Residential Electric – continued WIRING DIAGRAM A.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 25 Residential Electric – continued A-7 Circuit • .
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 26 Residential Electric – continued Cold tank of wat.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 27 Residential Electric – continued A-7 Circuit • 2 Elements • 2 Thermostats • 2 High Limits • 4 Wire WIRING DIAGRAM A-7 – Post 1995 Four wire circuit for non-simultaneous element operation.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 28 Residential Electric – continued Cold tank of wat.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 29 Residential Electric – continued CERTIFICATION AN.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 30 Residential Electric – continued Three Phase – Unbalanced Circuit Note: Residential heaters may or may not offer the ability to wire elements for simultaneous operation.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 31 Residential Electric – continued SERVICE Testing .
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 32 Residential Electric – continued C-2 – service .
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 33 Residential Electric – continued C-2 service “No Hot Water” – continued Test between the two element terminals If … … then rated voltage is not present check wiring from control.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 34 Residential Electric – continued C-2 – service “Water Too Hot” – continued Grounded Element Check – Amperage Method Grounded Element Test – using “clamp type” Amperage Meter.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 35 Residential Electric – continued A-6 Circuit Servicing Testing A-6 - two element, two thermostat, one high lim it, two wire circuit type water heaters.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 36 Residential Electric – continued A-6 service – continued Testing with the Multimeter Probes installed to test for "voltage - (black test lead is “common".
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 37 Residential Electric – continued A-6 service Volt.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 38 Residential Electric – continued A-6 service – continued Grounded Element Test – Amperage Method - using “clamp type” Amperage Meter.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 39 Residential Electric – continued Testing The A-7 .
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 40 Residential Electric – continued A-7 Service – continued Element Test OHMS Resistance Check ** Test Conditions: Element(s) not heating or water becoming excessively hot.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 41 Residential Electric – continued A-7 Voltage Check Voltage Checks These tests are conducted on the heater, below the junction box.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 42 Residential Electric – continued A-7 Voltage Chec.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 43 Residential Electric – continued A-7 service – .
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 44 Residential Electric – continued A-7 – continued Grounded Element Test – Amperage Met hod – Using “clamp type” Amperage Meter.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 45 Miscellaneous Residential Electric Water Heater Ser.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 46 A.O. SMITH TECHNICAL BULLETINS The following are bulletins designed to hel p service the standard, residential gas and electric model water heaters.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 47 WHY WATER HEATER TANKS LEAK WHAT WHY PREVENTION Water Pressure Water expands when it is heated (Thermal Expansion).
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 48 WHY WATER HEATER TANKS LE AK - Continued WATER CONDITIONS WHAT WHY PREVENTION “Hard” Water (Gas Water Heaters) “Hard” water contains minerals.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 49 TECHNICAL BULLETIN BULLETIN 11 WATER HAMMER GENERAL.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 50 TECHNICAL BULLETIN BULLETIN 13 MINERAL BUILD-UP SYM.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 51 TECHNICAL BULLETIN BULLETIN 14 ALUMINUM HYDROXIDE SYMPTOMS “Crackling”, “gurgling”, or “poppi ng” noises from new water heaters (installed less than six months).
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 52 TECHNICAL BULLETIN BULLETIN 21 DISCOLORED WATER SYMPTOMS Rusty, brown, black, or yellow wa ter appearing in the hot water.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 53 TECHNICAL BULLETIN BULLETIN 22 SMELLY WATER CAUSE The most common cause of “smelly wa ter” is a non-toxic sulfate redu cing bacteria, scientifically termed Divibrio Sulfurcan s .
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 54 TECHNICAL BULLETIN BULLETIN 23 CHLORINATION PROCEDURE CAUSE The chlorination pro cedure is used to eliminate various bacteria that accumulate and grow in water heaters.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 55 TECHNICAL BULLETIN BULLETIN 35 NOT ENOUGH HOT WATER - GAS CAUSE Not enough hot water complaints a re becoming more frequent in the water heater industry.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 56 TECHNICAL BULLETIN BULLETIN 36 NOT ENOUGH HOT WATER - ELECTRIC CAUSE Not enough hot water complaints a re becoming more frequent in the water heater industry.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 57 TECHNICAL BULLETIN BULLETIN 45 THERMAL EXPANSION SYMPTOMS • Effects are o nly noticeable after hot wate r use followed by periods of no water use.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 58 THE FIX The ideal fix involves the use of a pressu re reducing valve if supply pressures are above 60 to 70 psi, and a properly sized expansion tank.
RESIDENTIAL GAS AND ELECTRIC WATER HEAT ER SERVICE HANDBOOK A.O. Smith Water Products Company Training Department © 2002 Ashland City, Tennessee 59 TECHNICAL BULLETIN BULLETIN 52 LEAKING TEMPERATURE .
Handbook contents prepared by the T raining Department, Ashland City, Tennessee For additional information, contact A.O. Smith T echnical Information Department 1-800-527-1953 Website: www .hotwater .com For every technical pr oblem, ther e is a solution! A.
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 A.O. Smith TC-049-R2 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 A.O. Smith TC-049-R2 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso A.O. Smith TC-049-R2 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul A.O. Smith TC-049-R2 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il A.O. Smith TC-049-R2, 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 A.O. Smith TC-049-R2.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il A.O. Smith TC-049-R2. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo A.O. Smith TC-049-R2 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.
