User Manual GAS-FIRED MH18082
GAS-FIRED HEATER User Manual TABLE OF CONTENTS Product and Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,3 Service and Maintenance Munchkin Contender Operation Primary Water Section I – Combustion Air – Prevention of Contamination. . . . . . . . . . . . . . . . . . . . . . . . 4 Potential Contaminating Products Areas likely to find these Products Section II – Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
User Manual GAS-FIRED HEATER PRODUCT AND SAFETY INFORMATION SPECIAL ATTENTION BOXES The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or to important information concerning the product. DEFINITIONS DANGER CAUTION DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
User Manual GAS-FIRED HEATER PRODUCT AND SAFETY INFORMATION (CONT’D) PRIMARY WATER WARNING User — Have this heater serviced/inspected by a qualified service technician annually. • If you have an old system with cast iron radiators, thoroughly flush the system (without heater connected) to remove sediment. The high-efficiency heat exchanger can be damaged by build-up or corrosion due to sediment. • Do not use petroleum-based cleaning or sealing compounds in heater system.
GAS-FIRED HEATER User Manual SECTION I – COMBUSTION AIR – PREVENTION OF CONTAMINATION AREAS LIKELY TO FIND THESE PRODUCTS WARNING Products to avoid If the Munchkin Contender combustion air inlet is located in any area likely to cause or contain contamination, or if products, which would contaminate the air cannot be removed, the combustion air must be re -piped and terminated to another location.
GAS-FIRED HEATER User Manual SECTION II – MAINTENANCE SCHEDULE (CONT’D) head using compressed air only. Once the maintenance items are completed, review the service with the owner. OWNER MAINTENANCE Periodically: • Check the area around the unit. • Check and remove any blockage from the combustion air inlet and ventilation openings. • Check the temperature/pressure gauge Monthly: • Check vent piping. • Check combustion air inlet piping. • Check the pressure relief valve.
GAS-FIRED HEATER User Manual SECTION III – MAINTENANCE PROCEDURES (CONT’D) be removed immediately or the combustion air intake must be relocated to another area. Check Combustion Air Inlets Verify that the unit’s vent termination and combustion air intake are clean and free of obstructions. Remove any debris on the air intake or flue exhaust openings.
GAS-FIRED HEATER User Manual SECTION III – MAINTENANCE PROCEDURES (CONT’D) 6-MONTH MAINTENANCE Check primary and gas piping 1. Remove the heater cover and perform a gas leak inspection following Operating Instructions in Section IV. If gas odor or leak is detected, immediately shut down the unit following procedures on page 8. Call a qualified service technician. 2. Visually inspect for leaks around the internal heater water connections and around the heat exchanger.
GAS-FIRED HEATER User Manual SECTION IV – OPERATIONS INSTRUCTIONS FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result, causing property damage, personal injury or loss of life. A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand. B. BEFORE OPERATING smell all around the appliance area for gas.
User Manual GAS-FIRED HEATER REPLACEMENT PARTS 1 HEATER LIMIT FUSE CONNECTION 2 5 4 3 6 8 7 9 11 10 16 13 12 21 10 14 18 17 15 19 22 20 23 24 REPLACEMENT PARTS Item # 1 Description Composite Module Part # 7500P-010 (MC50) Item # 13 Description Screws M4x8 (Probe/Electrode) 7500P-012 (MC80) 14 Gasket (Air Channel to Combustion Blower) 7500P-075 7500P-014 (MC99/MC120) 15 Combustion Blower (w/Screws) 7500P-031 7250P-161 16 Screws M4x7 (Combustion Blower) 7250P-254 2 Ceramic Ta
User Manual GAS-FIRED HEATER REPLACEMENT PARTS (CONTINUED) 1 2 6 8 7 3 9 4 10 5 11 12 REPLACEMENT PARTS Description Item # 1 2 3 4 5 13 14 16 15 17 18 Concentric Flue Outlet (w/Gasket) Gasket (Concentric Flue Outlet) PVC Pipe (2" Sch. 40 - 12" Long) Flue Adapter Part # 7500P-025 7500P-008 7500P-097 7500P-007 7500P-002 6 Flue ECO O-Ring (S.S. Barbed Fitting) 7 S.S.
User Manual GAS-FIRED HEATER REPLACEMENT PARTS (CONTINUED) 1 2 21 3 5 6 9 4 10 7 8 11 12 11 13 14 16 15 17 20 18 19 REPLACEMENT PARTS Part # Item # Description Item # Description 11 Part # 1 Cover Filler Plate(w/Screws) 7500P-044 (MC50/MC80) 12 Condensate Hose (clear) 7500P-057 2 Blocked Vent Pressure Switch 7500P-032 (MC99/MC120) 13 Screws 8-32x3/8 (Filler/Gas Inlet Plate) 7500P-047 7250P-150 14 3 Screws 8-32x3/8 (Blocked Vent Pressure Switch) Supply/Return Filler Plate (w/Sc
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GAS-FIRED HEATER MAINTENANCE NOTES 13 User Manual
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© 2006 Heat Transfer Products, Inc. LP-180 REV.
