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Munchkin MUNCHKIN HIGH EFFICIENCY HEATER with the "925" Controller Diagrams For Vertical Venting

Models: MUNCHKIN HIGH EFFICIENCY HEATER with the "925" Controller

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VENTING

DIAGRAMS FOR VERTICAL VENTING

**IMPORTANT NOTE: All vent pipes must be glued, properly supported, and the exhaust must be pitched a minimum of a ¼" per foot back to the heater (to allow drainage of condensate).

Figure 4-5

**IMPORTANT NOTE: All vent pipes must be glued, properly supported, and the exhaust must be pitched a minimum of a ¼" per foot back to the heater (to allow drainage of condensate).

Figure 4-6

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Munchkin MUNCHKIN HIGH EFFICIENCY HEATER with the "925" Controller manual Diagrams For Vertical Venting

Contents

MUNCHKIN HIGH EFFICIENCY HEATER with the “925” Controller WHAT TO DO IF YOU SMELL GASInstalling, Operating & Maintaining WARNINGS USING THIS MANUALUSING THIS MANUAL SPECIAL ATTENTION BOXESTABLE OF CONTENTS TABLE OF CONTENTSGENERAL INFORMATION PART 1. GENERAL INFORMATION80M/140M/199M RECOMMENDED SERVICE CLEARANCEST50M/T80M GENERAL INFORMATIONDIMENSIONS T50M/T80MGENERAL INFORMATION GENERAL INFORMATION 140M/199MGENERAL INFORMATION ACCESSIBILITY CLEARANCESGENERAL CODES & REGULATIONSPART 2. ELECTRICAL Note Service clearance of the Munchkin See Section 1, Figures 1-1 andGENERAL INFORMATION / ELECTRICAL DANGER DANGERDANGER ELECTRICALELECTRICAL Figure 2-1 Connection Wiring Directly to Central Heating CirculatorGAS CONNECTION PART 3. GAS CONNECTIONDUNGS GAS VALVE GAS CONNECTIONFoam Core Pipe is not to be used in connecting the exhaust pipe PART 4. VENTINGDANGER DANGERDANGER VENTINGB. VENTING THE MUNCHKIN VENTING EXIT TERMINALS OF MECHANICAL DRAFT AND DIRECT-VENT VENTING SYSTEMREFERENCE THE NATIONAL FUEL GAS CODE 2002 EDITION Do not exceed the 85 foot maximum requirement intake plus exhaust piping added together including fitting allowance VENTINGThe Munchkin is not intended to be common vented with any other DANGERexisting appliance VENTINGVENTING DIAGRAMS FOR SIDEWALL VENTINGVENTING VENTING DIAGRAMS FOR VERTICAL VENTINGPIPING PART 5. PIPINGB. CIRCULATOR SIZING PIPINGC. FILL AND PURGE HEATING SYSTEM PIPINGPiping Symbol Legend PIPINGD. PIPING ILLUSTRATIONS Retrofit piping zoning with valves Space heating mode Standard Munchkin boilerDrawing 1A PIPINGDrawing 1B Retrofit piping zoning with valves Domestic water heating modeStandard Munchkin boiler PIPINGDrawing 2A Preferred piping zoning with valves Space heating modeStandard Munchkin boiler PIPINGDrawing 2B Preferred piping zoning with valves Domestic water heating modeStandard Munchkin boiler PIPINGDrawing 2C Preferred piping zoning with circulators Space heating modeStandard Munchkin boiler PIPINGDrawing 2D Preferred piping zoning with circulators Domestic water heating modeStandard Munchkin boiler PIPINGmultiple boilers / zoning with circulators Space heating mode Standard Munchkin boiler Preferred pipingDrawing 2E PIPINGDrawing 2F Standard Munchkin boiler Preferred pipingPIPING START-UP PROCEDURES PART 6. START-UP PROCEDURESFOR YOUR OWN SAFETY READ BEFORE OPERATING result, causing property damage, personal injury or loss of lifeSTART-UP PROCEDURES DANGERE. ADJUSTING THE TEMPERATURE ON THE MUNCHKIN DISPLAY START-UP PROCEDURESF. STATUS MENU Function ValueWater temperature over 125 degrees F. can cause severe burns START-UP PROCEDURES / SERVICINGinstantly, or death from scalds. Children, disabled, and elderly DANGERTROUBLESHOOTING PART 7. TROUBLESHOOTINGA. MUNCHKIN ERROR CODE B. BOILER ERRORTable 7-1 925 Control Board Error Codes TROUBLESHOOTINGCode DescriptionRESISTANCE TABLES TROUBLESHOOTINGMAINTENANCE PART 8. MAINTENANCED. COMBUSTION CHAMBER COIL CLEANING INSTRUCTIONS MAINTENANCEDANGER DANGERCONTROL WIRING LAYOUT MAINTENANCEE. MUNCHKIN CONTROLLER Caution Do not replace with any amperage other than 6.3AMAINTENANCE MAINTENANCE Page Page Munchkin R1 2004 Heat Transfer Products, IncLP-61 REV. 1/17/05