Munchkin Gas-Fired Hot Water Circulating Heater User Manual

WARNINGThis manual must only be used by a qualified heating installer/service technician. Read all instructionsin this manual before installing. Perfo

9GAS-FIRED HEATER Installation ManualPART 3: PREPARE MUNCHKIN CONTENDER LOCATION (CONTINUED)BEFORE LOCATING THE MUNCHKINCONTENDER1. Check for nearby

10GAS-FIRED HEATER Installation ManualPART 3: PREPARE MUNCHKIN CONTENDER LOCATION (CONTINUED)D. RESIDENTIAL GARAGE INSTALLATIONPrecautionsTake the fo

11GAS-FIRED HEATER Installation ManualG. WHEN REMOVING AN EXISTING HEATERFROM AN EXISTING COMMON VENT SYSTEMAt the time of removal of an existing hea

12GAS-FIRED HEATER Installation ManualPART 4: PREPARE MUNCHKIN CONTENDER (CONTINUED)D. INSTALLATION STEPS1) Prior to lifting the Munchkin ContenderHe

13GAS-FIRED HEATER Installation ManualA. RELIEF VALVEConnect discharge piping to safe disposal loca-tion, following guidelines in the WARNING below.B

14GAS-FIRED HEATER Installation ManualPART 5: MUNCHKIN CONTENDER PIPING (CONTINUED)2. Expansion tank must be located as shown inPiping Part 5, or fol

15GAS-FIRED HEATER Installation ManualPART 5: MUNCHKIN CONTENDER PIPING (CONTINUED)concentration and inhibitor level. The systemshould be tested at l

16GAS-FIRED HEATER Installation ManualI. FILL AND PURGE HEATING SYSTEM• Attach the hose to balance and purge hoseconnector or drain valve and run hos

17GAS-FIRED HEATER Installation ManualMUNCHKIN CONTENDER PIPING (CONTINUED)J. ZONING WITH ZONE VALVES1. Connect heater to system as shown in 1Aand 1B

18GAS-FIRED HEATER Installation Manualcirculator (w/ isolation flanges)gate valveglobe valveball valveswing-check valveflow-check valvespring-loaded

1GAS-FIRED HEATER Installation ManualWARNING If the information in this manual is not followed exactly, a fire or explo-sion may result causing prop

19GAS-FIRED HEATER Installation ManualStandard Munchkin Contender Heater!(zoning with valves)Space heating modeSuper Stor Ultraindirect DHW TankDrawi

20GAS-FIRED HEATER Installation ManualStandard Munchkin Contender Heater(zoning with valves)Domestic water heating modeSuper Stor Ultraindirect DHW T

21GAS-FIRED HEATER Installation ManualStandard Munchkin Contender HeaterPreferred piping (zoning with circulators)Space heating modeDrawing 1CNOTES:1

22GAS-FIRED HEATER Installation ManualStandard Munchkin Contender Heater(zoning with circulators)Domestic water heating modeDrawing 1DNOTES:1. This

23GAS-FIRED HEATER Installation ManualMultiple Munchkin Contender HeatersPreferred piping (zoning with circulators)Space heating modeDrawing 1ENOTES:

24GAS-FIRED HEATER Installation ManualMultiple Munchkin Contender HeatersPreferred piping (zoning with circulators)Domestic water heating modeDrawing

25GAS-FIRED HEATER Installation ManualPART 6. MUNCHKIN CONTENDER PIPING WITH OPTIONAL VISION I SYSTEM (DHW PRIORITY WITH OUTDOOR RESET)A. VISION I SY

26GAS-FIRED HEATER Installation ManualMunchkin Contender Heater with optional VISION 1 system(zoning with valves)Space heating modeDrawing 2ANOTES:1.

27GAS-FIRED HEATER Installation ManualMunchkin Contender Heater with optional VISION 1 system(zoning with valves)Domestic water heating modeDrawing 2

28GAS-FIRED HEATER Installation ManualMunchkin Contender Heater with optional VISION 1 system(zoning with valves)Space heating mode (w/ submixing)Dra

2GAS-FIRED HEATER Installation ManualCONTENTSPart 1 – Product and Safety Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

29GAS-FIRED HEATER Installation ManualMunchkin Contender Heater with optional VISION 1 system(zoning with circulators)Space heating modeDrawing 3ANOT

30GAS-FIRED HEATER Installation ManualMunchkin Contender Heater with optional VISION 1 system(zoning with circulators)Domestic water heating modeDraw

31GAS-FIRED HEATER Installation ManualMunchkin Contender Heater with optional VISION 1 system(zoning with circulators)Space heating mode (w/ submixin

32GAS-FIRED HEATER Installation ManualMunchkin Contender Heater with optional VISION 1 system(zoning with circulators)Space heating mode (3 fully res

33GAS-FIRED HEATER Installation ManualMunchkin Contender Heater with optional VISION 1 system(zoning with circulators)Space heating mode (3 different

34GAS-FIRED HEATER Installation ManualMunchkin Contender Heater with optional VISION 1 systemMultiple high temperature priority loads controlled with

35GAS-FIRED HEATER Installation ManualMunchkin Contender Heater with optional VISION 1 systemMultiple high temperature priority loads controlled with

36GAS-FIRED HEATER Installation Manuala. Non Foam Core PVC (Polyvinyl Chloride)Pipe conforming to ASTM D-1785).b. Non Foam Core CPVC (ChlorinatedPoly

37GAS-FIRED HEATER Installation ManualPART 7: VENTING, COMBUSTION AIR & CONDENSATE REMOVAL (CONTINUED)f. Provide 4 feet horizontal clearance from

38GAS-FIRED HEATER Installation ManualHOSE BARBDISTANCE NEEDEDTO DRAININTO ANY POSITIONTO CLEAR BEAMCONDENSATE LINE)DETERMINED BYAROUND OBSTRUCTIONS1

3GAS-FIRED HEATER Installation ManualCONTENTS(CONT’D)F. Exhaust Vent and Intake Air Pipe Installation.G. Heater Removal from a Common Vent SystemH. C

39GAS-FIRED HEATER Installation ManualLocation of exit terminals of mechanical draft and direct-vent venting systems.(Reference: National Fuel Gas Co

40GAS-FIRED HEATER Installation ManualPART 7: VENTING, COMBUSTION AIR & CONDENSATE REMOVAL (CONTINUED)1. The exhaust vent and intake air vent pip

41GAS-FIRED HEATER Installation ManualPART 7: VENTING, COMBUSTION AIR & CONDENSATE REMOVAL (CONTINUED)40 or 80 pipe. FOAM CORE PIPING IS NOTAPPRO

42GAS-FIRED HEATER Installation ManualPART 7: VENTING, COMBUSTION AIR & CONDENSATE REMOVAL (CONTINUED)H. CONDENSATE REMOVAL SYSTEMThis is a conde

43GAS-FIRED HEATER Installation ManualBE FACING UPSIDEWALL VENT WITH INTAKEEXHAUSTIMPORTANT:INTAKE LEG MUSTEXTERIOR WALLCONCENTRIC VENT KITFRONT VIEW

44GAS-FIRED HEATER Installation Manual10'-0" MIN.WHICHEVER IS GREATER12" OVER MAXIMUMSNOW LEVEL OR 24"RIGHT SIDE VIEWSUPPORT BRAC

45GAS-FIRED HEATER Installation ManualA. GAS CONNECTIONThe gas sup-ply shall havea maximuminlet pressureof less than 14"water column(350 mm), ½p

46GAS-FIRED HEATER Installation ManualContender. It is very important that the gas lineis properly purged by the gas supplier or utility.Failure to p

47GAS-FIRED HEATER Installation ManualPART 9: FIELD WIRINGA. INSTALLATION MUST COMPLY WITH:1. National Electrical Code and any othernational, state,

48GAS-FIRED HEATER Installation ManualPART 9: FIELD WIRING (CONTINUED)Fig. 9-4Fig. 9-3Fig. 9-1Fig. 9-2

4GAS-FIRED HEATER Installation ManualPART 1: PRODUCT AND SAFETY INFORMATIONSPECIAL ATTENTION BOXESThe following defined terms are used throughout thi

49GAS-FIRED HEATER Installation ManualPART 9: FIELD WIRING (CONTINUED)Fig. 9-5

50GAS-FIRED HEATER Installation ManualOutdoor Sensor Function The user can pro-gram the desired supply temperature based onthe heat transmitter (Base

51GAS-FIRED HEATER Installation ManualPART 11. START-UP PREPARATIONA. CHECK/CONTROL WATER CHEMISTRYWater pH between 6.0 and 8.01. Maintain heater wat

52GAS-FIRED HEATER Installation ManualPART 11. START-UP PREPARATION (CONTINUED)5. The system may have residual substancesthat could affect water chem

53GAS-FIRED HEATER Installation ManualPART 11. START-UP PREPARATION (CONTINUED)G. CONDENSATE REMOVAL1. The Munchkin Contender is a high efficiencycon

54GAS-FIRED HEATER Installation ManualPART 12. START-UP PROCEDURE (CONTINUED)A. OPERATING INSTRUCTIONSRemove Munchkin Contender Heater cover. Ifyou s

55GAS-FIRED HEATER Installation ManualPART 12. START-UP PROCEDURE (CONTINUED)PART 13: START-UP PROCEDURES WITH THE VISION 1 OPTIONFunction Valued4 —

56GAS-FIRED HEATER Installation ManualPART 13: START-UP PROCEDURES WITH THE VISION 1 OPTION (CONTINUED)the pass code is correct, you will need to pre

57GAS-FIRED HEATER Installation ManualPART 13: START-UP PROCEDURES WITH THE VISION 1 OPTION (CONTINUED)Default FunctionFunction Value Description14 3

58GAS-FIRED HEATER Installation ManualFig. 13-3PART 13: START-UP PROCEDURES WITH THE VISION 1 OPTION (CONTINUED)5032411671581491311221131047759688695

5GAS-FIRED HEATER Installation ManualPART 1: PRODUCT AND SAFETY INFORMATION(CONT’D)Before InstallingWHEN SERVICING THE MUNCHKIN CONTENDER• To avoid e

59GAS-FIRED HEATER Installation ManualA. MUNCHKIN ERROR CODE An error code may occur in the installation ofthe Munchkin Contender. This condition may

60GAS-FIRED HEATER Installation ManualPART 14: TROUBLESHOOTING (CONTINUED)Table 14-2: 925 Control Board FAULT CodesCode Description RemedyF00High Li

61GAS-FIRED HEATER Installation ManualPART 15: MAINTENANCEA. MAINTENANCE PROCEDURESPeriodic maintenance should be performedonce a year by a qualified

62GAS-FIRED HEATER Installation ManualB. COMBUSTION CHAMBER COILCLEANING INSTRUCTIONS*Before beginning this procedure, you must have onhand the follo

63GAS-FIRED HEATER Installation ManualPART 15: MAINTENANCE (CONTINUED)REPLACEMENT PARTSItem#Description Part #Item#Description Part #1 Composite Modu

64GAS-FIRED HEATER Installation ManualREPLACEMENT PARTSItem # Description Part #1 Concentric Flue Outlet (w/Gasket) 7500P-0252 Gasket (Concentric Flu

65GAS-FIRED HEATER Installation ManualPART 15: MAINTENANCE (CONTINUED)REPLACEMENT PARTSItem#Description Part #Item#Description Part #1 Cover Filler P

66GAS-FIRED HEATER Installation ManualLight Off Activities1) Fill the heating system Check all piping and gas connections, verify they are all tigh

67GAS-FIRED HEATER Installation ManualInspection ActivitiesPiping 1st Year 2nd Year 3rd Year 4th Year*Near Heater Piping Check heater and system pipi

68GAS-FIRED HEATER Installation ManualCondensate 1st Year 2 Year 3 Year 4 Year*Condensate Neutralizer Check condensate neutralizer, replace if neces

6GAS-FIRED HEATER Installation Manualcan cause internal corrosion in systemcomponents. Leaks in heater or piping must berepaired at once to prevent m

69MAINTENANCE NOTES

70MAINTENANCE NOTES

© 2007, 2006 Heat Transfer Products, Inc. LP-171 REV. 3/20/07

7GAS-FIRED HEATER Installation ManualPART 2: HOW THE MUNCHKIN CONTENDER OPERATES(CONT’D)powered and combustion air is flowing.4. Swirl Plate SystemTh

8GAS-FIRED HEATER Installation Manuallocated in the Vision One section of thismanual. Optional kit consists of the following• Outdoor sensor – 7250P-