Ao-smith DB/DW-720-1810 Manuel d'utilisateur

1WITH ELECTRONIC INTERMITTENT PILOT IGNITION AND INSTALLATIONSWARNING: If the information in this manualis not followed exactly,

10TABLE 5Multipliers To Be Used With Table 1 When Applying TheGravity Factor To Other Than .60 Specific GravitySpecific SpecificGravity Multiplier Gr

11Applications of the gravity factor converts the figures given in table1 to capacities with another gas of different specific gravity. Suchapplicati

12IF ANY OF THE ORIGINAL WIRE, AS SUPPLIED WITH THEAPPLIANCE, MUST BE REPLACED, IT MUST BE REPLACEDWITH TYPE 105°C WIRE OR ITS EQUIVALENT, EXCEPT FORT

13The flow switch shall be mounted in the top opening of the reducingtee and provide adequate paddle length in the flow stream. Forexample in a 2&quo

14Thereafter, during the heating season, lubricate the three oil cupsat least once every four months. Combination heating/coolingsystems or water hea

15A system bypass should be installed as shown in fig. 10 to preventboiler circulation starvation when the system zones call for reducedflow.This bypa

16NOTES:1. BUILDING TEMPERATURE CONTROLS SUPPLY ELECTRIC POWER TO BUILDING CIRCULATOR.2. MAIN FLOW SWITCH PROVES MAIN WATER FLOW BEFORE ENERGIZING, SE

17BYPASS BALANCINGWith systems where water temperature can be expected to dropappreciably due to long standby periods, or heavy draw down, abypass pip

18generator type boilers establish temperature rises. The decidingfactor in choice of boiler temperature rise relates to the boiler inlettemperature.

19FIGURE 14NO. SUGGESTED ITEMS FOR INSTALLATION 1. SHORT PIPE NIPPLE AND PAIR OF BOILER LOOP TEES INPIPING BETWEEN SYSTEM SUPPLY AND RETUR

2FOREWORD CAUTIONTEXT PRINTED OR OUTLINED IN RED CONTAINSINFORMATION RELATIVE TO YOUR SAFETY. PLEASE READTHOROUGHLY BEFORE USING APPLIANCE.Detailed

20USE ONY TYPE 105°C THERMOPLASTIC OR ITS EQUIVALENTIF ANY OF THE ORIGINAL WIRES AS SUPPLIED MUST BE REPLACED.USE ONY TYPE 105°C THERMOPLASTIC OR ITS

21DURA-MAX - PUMP MOUNT - SINGLE STAGE - SCHEMATIC DIAGRAMDURA-MAX - SINGLE STAGE FIRING - UNITED STATES MODELS WITH PUMP.120 VOLT SYSTEM CONTROLLER

22DURA-MAX - PUMP MOUNT - DUAL STAGE - SCHEMATIC DIAGRAMDURA-MAX - DUAL STAGE FIRING - UNITED STATES MODELS WITH PUMP.120 VOLT SYSTEM CONTROLLER

23DURA-MAX - PUMP MOUNTED - MODULATING - SCHEMATIC DIAGRAMDURA-MAX - MODULATED FIRING - UNITED STATES MODELSWITH PUMP. 120 VOLT SYSTEM CONTROLLER

24DURA-MAX - SINGLE STAGE FIRING - SCHEMATIC DIAGRAMDURA-MAX - SINGLE STAGE FIRING - UNITED STATES & CANADIAN MODELSWITHOUT PUMP. 120 VOLT SYSTEM

25DURA-MAX - DUAL STAGE FIRING - SCHEMATIC DIAGRAMDURA-MAX - DUAL STAGE FIRING - UNITED STATES & CANADIAN MODELSWITHOUT PUMP. 120 VOLT SYSTEM CON

26DURA-MAX - MODULATED FIRING - SCHEMATIC DIAGRAMDURA-MAX - MODULATED FIRING - UNITED STATES & CANADIAN MODELSWITHOUT PUMP. 120 VOLT SYSTEM CONTR

27HOT WATER SUPPLY APPLICATIONSCer-Temp 80 Recovery SystemsWATER LINE CONNECTIONSThis section provides detailed installation diagrams for typicalmetho

28ONE DURA-MAX (MODEL DW) COMMERCIAL BOILER WITH HORIZONTAL TANK CAUTIONTO PREVENT CONDENSATION THE MINIMUM BOILER INLET TEMPERATURE IS 100°F (38°C

29TWO DURA-MAX (MODEL DW) HOT WATER SUPPLY BOILERS WITH VERTICAL TANK CAUTIONTO PREVENT CONDENSATION THE MINIMUM BOILER INLET TEMPERATURE IS 100°F (38

3 WARNINGAN AMPLE SUPPLY OF AIR MUST BE PROVIDEDFOR PROPER COMBUSTION AND VENTILATION.Minimum Clearances To CombustiblesWater BlankTop Side Side Re

30TWO DURA-MAX (MODEL DW) HOT WATER SUPPLY BOILERS WITH HORIZONTAL TANK CAUTIONTO PREVENT CONDENSATION THE MINIMUM BOILER INLET TEMPERATURE IS 100°

31FIGURE 24MANIFOLDING OF MODEL TJV-120M & TJV-200M TANKSNOTE: PIPE SIZES BETWEEN MANIFOLDS AND BOILER(S) TOBE SELECTED FROM THE CER-TEMP 80 DIAGR

32START-UP AND OPERATINGINSTRUCTIONS WARNINGAfter placing boiler into operation, the ignition system safety shutoffdevice must be tested by the fol

33LIGHTING AND OPERATING INSTRUCTIONS WARNING:HOT WATER CAN PRODUCE 3rd DEGREE BURNS IN 6 SECONDS AT 140° F. (60° C).IN CASE OF POWER FAILURE DO NO

34INTERNAL CONTAMINANTSThe system must be internally cleaned and flushed after a new orreplacement unit has been installed to remove contaminants that

351. Remove main burners from unit.2. Check that burner venturi and ports are free of foreign matter.3. Clean burners with bristle brush and/or vacuum

36 CHECKING HONEYWELL S8600H OR S8610M (NAT. GAS) INTERMITTENT IGNITION CONTROLS NO SPARK AT PILOT BURNERNOReplace ignition module Is voltage (2

37 SPARK AT PILOT BURNER BUT PILOT WILL NOT LIGHTEnsure all manual shutoff valves are fully open; All filters are clean;All gas connections are gas

38 PILOT BURNER LIGHTS BUT MAIN BURNER DOES NOT LIGHTCorrect the situation by consulting NOthe installation or user’s manual Does the pilot fla

39 CAUTIONDO NOT USE A NYLON BRUSH OR OTHER STATIC CREATINGMATERIAL TO CLEAN DUST AND CARBON DEPOSITS FROMHEATING SURFACES AND VENT.SUCH DEPOSITS A

4 WARNINGYour Dura-Max boiler is not designed to operate with a boiler inlet water temperature of less than100°F (38°C). Colder inlet water temper

40The time between cleaning will vary from two to six monthsdepending upon water conditions and usage. A change ofapproximately 5°F in the normal tem

41DURA-MAX LIMITED WARRANTYA. O. Smith Corporation, the warrantor, extends the following LIMITED WARRANTY to the owner of this hydronic boiler:1. If w

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44REPLACEMENT PARTS5621 W. 115TH STREET, ALSIP, IL 60803PHONE: 800-433-2545 FAX: 800-433-2515www.hotwater.com E-Mail: [email protected]

5FEATURESIMPORTANTOnly qualified personnel shall perform the initial firing of the heater.At this time the user should not hesitate to ask the individ

6AUTOMATIC RESETHIGH TEMPERATURE LIMIT CONTROL CAUTIONLIMIT CONTROLS ARE NOT TO BE USED AS THERMOSTATS.ALL MODELS - This limit is a safety device

7INSTALLATION INSTRUCTIONSREQUIRED ABILITYINSTALLATION OR SERVICE OF THIS BOILER REQUIRESABILITY EQUIVALENT TO THAT OF A LICENSED TRADESMANIN THE FIEL

8If the confined space is within a building of tight construction, air forcombustion, ventilation, and draft hood dilution must be obtainedfrom outdoo

9 WARNINGFAILURE TO CORRECT BACK DRAFTS MAY CAUSE AIRCONTAMINATION AND UNSAFE CONDITIONS.Vent connectors serving appliances vented by natural draft s