GAS-FIRED HEATER Installation Manual

Munchkin Contender Heater with optional VISION 1 system Multiple high temperature priority loads

controlled with zone circulators

Multiple low temperature load controls with zone circulators

Drawing 3G

high temperature loads

low temperature loads

air handler

 

 

 

 

 

 

 

make-up water

OFF

OFF

OFF

 

 

 

 

 

 

 

 

 

 

zone

 

 

 

 

 

circulators

air handler

 

optional high limit safety

 

 

 

 

 

 

 

 

 

 

closely spaced tees

 

 

 

 

purge

purge

 

 

 

 

 

 

 

 

multi-zone

 

 

 

 

 

relay center

 

 

 

 

 

anti-scald

 

 

 

 

Munchkin

 

 

 

 

Contender

mixing valve

 

 

 

 

 

 

 

 

Heater

 

 

 

 

 

DHW

 

OFF

 

 

 

tank

 

 

 

 

 

aquastat

 

P1

 

 

 

 

 

 

 

 

P2

 

 

 

 

 

 

 

T/P

 

 

 

 

 

 

 

 

outdoor

 

 

 

 

 

temperature

 

 

 

 

 

sensor

 

 

 

 

 

(Vision 1 system)

see note 6

 

purge

 

 

 

Super Stor Ultra

 

thermal trap

 

 

 

 

(w/ drain plug)

 

 

 

indirect DHW Tank

 

 

 

 

 

 

 

 

 

NOTES:

1.This drawing is meant to show system piping concept only.

Installer is responsible for all equipment & detailing required by local codes.

2.All closely spaced tees shall be within 4 pipe diameters center to center spacing.

3.A minimum of 6 pipe diameters of straight pipe shall be installed upstream & downstream of all closely spaced tees.

4.The minimum pipe size for connecting a Super Stor Ultra Indirect Water Heater is 1-inch.

5.The minimum pipe size for connecting the Munchkin Contender is 1.25-inch

6.Circulators are shown with isolation flanges and integral check valves. The alternative is standard flanges with full port ball valves and a separate flow check valve. Purge valves can be used with the circulator flanges as an alternative.

7.Optional Vision 1 system includes temperature sensors for DHW and outdoor air and must be purchased separately.

8.The anti-scald mixing valve is recommended if the DHW temperature is set above the factory setting of 119˚F.

9.Install a minimum of 12 diameters of straight pipe upstream of all circulators.

10.Winterization: When winterizing the Munchkin Contender, put a drain valve on both the supply and return between the union and the shut-off connection.

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Image 36
Munchkin Gas-Fired Hot Water Circulating Heater installation manual Drawing 3G

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.