PIPING

Standard Munchkin boiler

Preferred piping (zoning with valves) Space heating mode

Drawing 2A

 

zone valves

 

make-up water

P2

 

 

 

closely

 

differential

spaced

 

pressure

tees

 

bypass

 

 

valve

purging

 

V1

valves

 

OFF

 

 

 

 

anti-scald

 

 

mixing valve

 

 

cold

 

 

water

 

P1

 

 

T/P

 

 

Munchkin boiler

Super Stor

 

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.Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself.

3.The minimum pipe size for connecting a Super Stor water heater is 1 inch.

4.The minimum pipe size for connecting a Munchkin boiler is 1.25 inches.

5.All pumps are shown with isolation flanges. The alternative is standard flanges with full port ball valves.

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

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

8.A purging valve may be used in lieu of the ball valve / hose bib combination shown.

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

Fig. 5-5

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Image 23
Munchkin 399M manual Mixing valve