Manuale d’uso / di manutenzione del prodotto DCG del fabbricante American Water Heater
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T o obt ain technical, warranty or service assist ance during or af ter the inst allation of this water heater , call toll free: 1-800-456-9805 When calling for assist ance, please have the following information ready: 1. Model number 2. 7 digit product number 3.
2 T able of Content s W ater Heater Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Inst allation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 Unp acking the W ater Heater . . . . . . .
3 INST ALLA TION INSTRUCTIONS Consumer Information This water heater is design-certified by CSA International as a Category I, non-direct vented water heater which t akes it s combustion air either from the inst allation area or from air ducted to the unit from the out side.
4 Va po rs f rom fla m ma ble liq uid s w ill ex plo de and ca tc h fir e c aus ing de ath or se ver e b urn s. Do no t u se or s tor e fl am ma ble pro du cts su ch as ga soli ne, so lven ts or a dh es ive s in t he sa me roo m or are a n ear the w ater he ate r.
5 Clearances and Accessibility Notice: Minimum clearances from combustible materials are st ated on the dat a plate located on the front of the water heater .
6 COMBUSTION/VENT PIPE SYSTEM Combustion Combustion air must be free of acid-forming chemicals. These chemicals are found in aerosol sprays, deter- gent s, bleaches, cleaning solvent s, air freshener , p aint and varnish removers, refrigerant, and many other com- mercial product s.
7 Air Requirement s For buildings that are not well sealed (do not have tight fitting doors and windows) natural air infiltration may provide suf ficient air required for combustion and venti- lation.
Figure: 2 Equipment Location and Combustion/V entilation Air Requirement s Combustion Air Duct Permanent Vent ilat ion Air 12” Grade 12” Outdoor Air Ducts Vent ing Combustion Inlet Air Ducts Outlet Air (a) (b) (d) (c) 8 Air Opening Requirement s (a) EQUIPMENT LOCA TED IN CONFINED SP ACES; ALL AIR FROM INSIDE THE BUILDING .
9 9 Draf t Hood/Damper Inst allation Flue Outlet Reducer Some unit s are shipped with a flue outlet reducer (See Figure 3B). Use only the flue outlet reducer supplied with this unit. The flue outlet reducer should be connected to the top of the flue damper and sealed by high temperature silicon.
10 W A TER SYSTEM PIPING T empering V alve Inst allation A T empering V alve should be inst alled per the manufac- turer ’ s instructions in the hot water line. See Figure 5 (below) for sample tempering valve inst allation. Piping Inst allation Piping, fittings, and valves should be inst alled according to the inst allation drawing (Figure 4).
Thermometer Temperatu re and Pressure Re lief Valve Temperatu re and Pressu re Relief Va lve Storage Tank Heater 1 1/2” Cold water suppl y Hot Wa ter Outlet Thermal Expansion Tank Pressure Reducing .
12 Figure 8: Commercial Unit with Auxiliary S torage Heater - Forced Circulation W ith or W ithout Building Recirculation - T op Inlet/Outlet Connections Closed System/Thermal Exp ansion Periodic discharge of the temperature and pressure relief valve may be due to thermal exp ansion in a closed water supply system.
13 13 T emperature and Pressure Relief V alve For protection against excessive pressures and temperatures, a temperature and pressure relief valve must be inst alled in the opening marked “T & P RELIEF V AL VE” (See Figure 9).
14 GAS SUPPL Y AND PIPING Gas Requirement s Read the dat a plate to be sure the water heater is made for the type of gas being used. This information will be found on the dat a plate located on the front of the water heater . If the information does not agree with the type of gas available, do not inst all or operate the water heater .
15 15 Gas Pressure T esting Import ant: This water heater and it s gas connection must be leak tested before placing the appliance in operation. • If the code requires the gas lines to be tested at a pressure of 14” W .
16 If you lack the necessary skills required to properly inst all the electrical wiring to this water heater , do not proceed but have a qualified service technician perform the inst allation.
17 17 WIRING DIAGRAM Index.
18 INST ALLA TION CHECKLIST W ater Heater Location Requirement s • Centrally located with the water piping system. Located as close to the gas piping and vent pipe system as possible. • Located indoors and in a vertical position. Protected from freezing temperatures.
19 19 OPERA TING YOUR W A TER HEA TER Read and underst and these directions thoroughly before attempting to operate the water heater (see Lighting Instructions on p age 20). Check the dat a plate on the front of the water heater for the correct gas. Do not use this water heater with any gas other than the one listed on the dat a plate.
20 The thermost at is adjusted to it s lowest temperature setting when it is shipped from the factory . W ater tem- perature can be regulated by moving the temperature dial to the preferred setting.
21 21 Burn Hazard Do not touch vent. Doing so can result in burns. Checking the Draf t Af ter successfully lighting the water heater , allow the unit to operate for 15 minutes and check the draf thood relief opening for proper draf t. Pass a match flame around the relief opening of the draf thood (See Figure 14).
22 MAINTENANCE OF YOUR W A TER HEA TER Draining and Flushing It is recommended that the t ank be drained and flushed every 6 months to remove sediment which may buildup during operation. Note: W arranty is null and void in the event lime & scale deposit s are allowed to exceed two inches in depth.
23 23 6. When replacing the gas valve, use an approved T eflon® or pipe joint compound on the pipe threads. 7. Screw the new gas valve onto the burner assembly . 8. Reconnect the pilot tube to the gas valve. 9. Reconnect the main gas line to the gas valve.
DC G3 SERIES C OMMERCIAL GAS D AMPERED W A TER HEA TERS Copyright© by Americ an Water Heat er Company 2005. All rights reserved. FCG3-0805 No Hot Wa ter Po wer to heater? Repair power problem NO YES .
DC G3 SERIES THERMOST A T TROUBLESHOO TING FL OW CHART Copyright© by Americ an Water Heat er Company 2005. All rights reserved. FCG3-0805 No voltage or low voltage fr om purple wire between thermostat board & EC O board Replace bad sensor(s) Replace EC O board W ith an ohm meter set at X1, check orange wires on set pot.
26 REP AIR P ARTS ILLUSTRA TION Rep air Part s List When ordering rep air p art s always give the following information: 1. Model, serial, and product number 2. T ype of gas 3. Item number 4. Part s description N o. Pa rt Na me a nd D e s cription N o.
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 American Water Heater DCG 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 American Water Heater DCG - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso American Water Heater DCG imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul American Water Heater DCG ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il American Water Heater DCG, 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 American Water Heater DCG.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il American Water Heater DCG. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo American Water Heater DCG 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.
