GAS-FIRED HEATER Installation Manual

PART 7: VENTING, COMBUSTION AIR & CONDENSATE REMOVAL

DANGER

Munchkin Contender Heater must be vented as detailed in Venting section Part 7. Ensure the exhaust and intake piping comply with these instructions regarding vent system.

Inspect finished combustion air intake and exhaust piping thoroughly to ensure all joints are well secured and airtight and comply with all applicable code requirements, as well as with the instructions provided in this manual.

Failure to provide a properly installed vent system will cause severe personal injury or death.

A.INSTALLING EXHAUST VENT AND INTAKE AIR VENT

WARNING

This vent system will operate with a positive pressure in the pipe. Do not connect vent connectors serving appliances vented by natural draft into any portion of mechanical draft systems operating under positive pressure.

Follow the venting instructions below carefully. Failure to do so may result in severe personal injury, death, or substantial property damage.

a.Non Foam Core PVC (Polyvinyl Chloride) Pipe conforming to ASTM D-1785).

b.Non Foam Core CPVC (Chlorinated Polyvinyl Chloride) Pipe conforming to ASTM D-1785).

c.Non Foam Core ABS (Acrylonitrile- Butadiene- Styrene) Pipe conforming to ASTM D3965 Class 3-2-2-2-2.

WARNING

Do not use Foam Core Pipe in any portion of the exhaust piping from this heater. Use of Foam Core Pipe may result in severe personal injury, death, or substantial property damage.

2.Cellular foam core piping may be used on air inlet piping only. Never use cellular foam core material for exhaust vent piping.

D.EXHAUST VENT AND INTAKE AIR VENT PIPE LOCATION

WARNING

Both exhaust and intake air vents must exit from the same side of the building to assure correct appliance operation.

B.GENERAL

1.Install the Munchkin Contender venting system in accordance with these instructions and with the National Fuel Gas Code, ANSI Z223.1/NFPA 54, CAN/CGA B149, and/or applicable provisions of local building codes. Vent installations in Canada must comply with ULC S636. The Recommended manufacturer for this application is Ipex of Canada Model System 636.

2.This heater is a direct vent appliance and is listed as a Category IV appliance with Underwriters Laboratories, Inc. VENT AND INTAKE AIR PIPE

C.APPROVED MATERIALS FOR EXHAUST VENT AND INTAKE AIR VENT

1.Use only Non Foam Core venting material. The following materials are approved for use as vent pipe for this heater:

1.Determine exhaust vent location:

a.The vent piping for this heater is approved for zero clearance to combustible construction.

b.See illustration within this section of clearances for location of exit terminals of direct-vent venting systems.

c.This heater vent system shall terminate at least 3 feet (0.9 m) above any forced air intake located within 10 ft (3 m). Note: this does not apply to the combustion air intake of a direct-vent appliance.

d.Provide a minimum of 1 foot distance from any door, operable window, or gravity intake into any building.

e.Provide a minimum of 1 foot clearance from the bottom of the exhaust above the expected snow accumulation level. Snow removal may be necessary to maintain clearance.

36

Page 36 Page 38
Page 37
Image 37
Munchkin Gas-Fired Hot Water Circulating Heater installation manual Installing Exhaust Vent and Intake AIR Vent, General
Page 36 Page 38

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.
Top Page Image Contents