GAS-FIRED HEATER Installation Manual

Standard Munchkin Contender Heater (zoning with valves)

Domestic water heating mode

Drawing 1B

zone valves see note 6

make-up water

P2

closely

spaced

tees

purging

valves

Munchkin

Contender

Heater

T/P

OFF

OFF

OFF

OFF

anti-scald mixing valve

differential pressure bypass valve

Super Stor Ultra 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. The alternative is standard flanges with full port ball valves. Purge valves can be used with the circulator flanges as an alternative.

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

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

9.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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Munchkin Gas-Fired Hot Water Circulating Heater Standard Munchkin Contender Heater zoning with valves, Drawing 1B

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.

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