Munchkin Gas-Fired Hot Water Circulating Heater Installation Must Comply with, Field Wiring

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GAS-FIRED HEATER Installation Manual

PART 9: FIELD WIRING

WARNING

ELECTRICAL SHOCK HAZARD — For your safety, turn off electrical power supply at service entrance panel before making any electrical connections to avoid possible electric shock hazard. Failure to do so can cause severe personal injury or death.

NOTICE

Wiring must be N.E.C. Class 1.

If original wiring as supplied with heater must be replaced, use only TEW 105 °C wire or equivalent.

Heater must be electrically grounded as required by National Electrical Code ANSI/NFPA 70 — latest edition.

A.INSTALLATION MUST COMPLY WITH:

1.National Electrical Code and any other national, state, provincial or local codes or regulations.

2.In Canada, CSA C22.1 Canadian Electrical Code Part 1, and any local codes.

B.FIELD WIRING

For you convenience we have located the electri- cal connection of the Munchkin Contender on the

front right hand side of the unit. The electrical junc- tion box has a 24 volt terminal compartment and 120 volt terminal compartment. Each terminal con- nection is clearly marked to assure correct instal- lation.

C.LINE VOLTAGE WIRING

1.Connect 120 VAC power wiring to the line voltage terminal strip located inside the electric junction box, as shown in figure 9.5.

2.Wire the Heater Primary Circulator (P1) to the terminal strip. See wiring diagram in this section.

D.THERMOSTAT

1.Connect room thermostat or end switch

2.Install thermostat on inside wall away from influences of drafts, hot or cold water pipes, lighting fixtures, television, sunrays or fireplaces.

3.Thermostat anticipator (if applicable):

a.If connected directly to heater, set for 0.1 amps.

b.If connected to relays or other devices, set to match total electrical power requirements of connected devices. See specifications of the device and thermostat instructions for details.

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Contents Installation Manual What to do if YOU Smell GAS Contents Contents CONT’D Part 1 Product and Safety Information DefinitionsMunchkin Contender Operation Heater WaterWinterizing the Munchkin Contender Freeze Protection FluidsModulating Combustion System Gas ValveSupply water temperature sensor Return water temperature sensorTemperature and pressure gauge Swirl Plate SystemInstallations Must Comply with Part 2 HOW the Munchkin Contender Operates CONT’DClearances for Service Access Before Locating the Munchkin ContenderResidential Garage Installation Exhaust Vent and Intake AIR VentPrevent Combustion AIR Contamination Part 4 Prepare Munchkin Contender Heater Installation Steps Munchkin Contender Wall Mounting InstructionsPart 5 Munchkin Contender Piping Part 5 Munchkin Contender Piping CirculatorsCirculator Sizing System Temperature Rise Chart Fill and Purge Heating SystemMunchkin Contender Piping Zoning with Zone ValvesZoning with Circulators Multiple HeatersPiping symbol legend Contender Piping DetailsStandard Munchkin Contender! Heater zoning with valves Drawing 1AStandard Munchkin Contender Heater zoning with valves Drawing 1BSpace heating zone circuit See note Make-up water Installation Manual GAS-FIRED Heater Installation Manual Space heating zone circuit Zoning with Circulators Using Vision Vision I System PipingDrawing 2A Heater Piping Details with the Vision I SystemDrawing 2B Drawing 2C OFFDrawing 3A Drawing 3B Outdoor Temperature sensor Vision 1 system purge Drawing 3CDrawing 3D Drawing 3E Drawing 3F Drawing 3G Installing Exhaust Vent and Intake AIR Vent Exhaust Vent and Intake AIR Vent Pipe LocationGeneral Part 7 VENTING, Combustion AIR & Condensate Removal Exhaust Vent and Intake AIR Vent SizingInstallation Manual Reference National Fuel Gas Code Ansi Z223.1/NFPA 54 Installation Exhaust Vent and Intake AIR PipeHeater Removal from a Common Vent System Vent Termination Kits Description Stock CodeCondensate Removal System MaterialCanada Diagrams for Sidewall Venting Sidewall Venting with KIT12 2 roof vent with tee intake & coupling exhaust Part 8 GAS Piping GAS ConnectionGAS Piping GAS TableDungs GAS Valve TAP InletInstallation Must Comply with Field WiringLine Voltage Wiring ThermostatPart 9 Field Wiring Part 9 Field Wiring Part 10 Field Wiring Vision 1 Option Indirect Circulator P2 ProgramFreeze Protection When Used Part 11. START-UP PreparationCHECK/CONTROL Water Chemistry Fill and Test Water SystemCheck for GAS Leaks Purge AIR from Water SystemCheck Thermostat Circuits Part 12. START-UP Procedure Condensate RemovalPart 12. START-UP Procedure Adjusting the SetpointOperating Instructions Status MenuTest Mode Vision 1 Program AccessProgramming the Vision I Option Vision 1 Program Navigation Default Function Function Value Description FunctionCentral Heating Curve Function Control Program Reference Chart Function Default Setting Programmed SettingMunchkin Error Code Heater ErrorHeater Fault Part 14 Troubleshooting 925 Control Board Fault Codes Description RemedyMaintenance Procedures Outdoor Sensor 7250P-319For GAS Leaks Sure Exhaust Vent is no Longer BlockedPart 15 Maintenance Replacement PartsReplacement Parts Replacement Parts Heater Start UP Report Light Off ActivitiesHeater Inspection and Maintenance Schedule Heater Inspection and Maintenance Schedule Maintenance Notes Maintenance Notes 2007, 2006 Heat Transfer Products, Inc LP-171 REV /20/07

Gas-Fired Hot Water Circulating Heater specifications

The Munchkin Gas-Fired Hot Water Circulating Heater is a cutting-edge heating solution designed to provide efficient and reliable hot water for residential and commercial applications. Renowned for its compact design and innovative technology, the Munchkin heater combines performance with energy efficiency, making it an ideal choice for those seeking comfort and cost savings.

One of the main features of the Munchkin heater is its modulating burner. This technology intelligently adjusts the heating output based on the demand for hot water, ensuring that energy is not wasted. This leads to lower energy bills and a reduction in environmental impact, as the system only uses the necessary resources to maintain desired water temperatures.

Another notable characteristic is its high-efficiency rating. The Munchkin heater operates with an impressive annual fuel utilization efficiency (AFUE) of up to 95%. This means that the majority of the fuel consumed is converted into usable heat. By maximizing energy utilization, homeowners can enjoy a significant reduction in utility costs while minimizing emissions.

The compact size of the Munchkin Gas-Fired Hot Water Circulating Heater is another significant advantage. It is designed to fit into tight spaces, making it suitable for homes where space is at a premium. This compact design does not compromise performance; instead, it enhances installation flexibility, allowing for placement in basements, closets, or utility rooms.

Munchkin heaters are equipped with advanced control systems that offer enhanced convenience. The digital display and programmable settings allow users to set their preferred temperatures and schedules. This feature not only enhances user comfort but also optimizes energy usage, as water is heated only when necessary.

Safety is also a top priority with Munchkin products. The heater includes built-in safety features such as flame monitoring systems, automatic shut-off capabilities, and pressure relief valves, providing peace of mind for users.

In summary, the Munchkin Gas-Fired Hot Water Circulating Heater is a high-efficiency, compact, and innovative solution for hot water needs. With its modulating burner, high-efficiency rating, advanced control systems, and safety features, it stands out as a reliable choice for those looking to invest in heating technology that prioritizes energy conservation and performance. This heater is truly a forward-thinking solution for modern hot water requirements.