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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
high temperature loads
air handler
air handler
multi-zone
relay center
anti-scald
mixing 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 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.
35
GAS-FIRED HEATER
purge
DHW
tank
aquastat
P2
see note 6
Installation Manual
low temperature loads
make-up water
optional high limit safety
closely spaced tees
OFF
P1
T/P
purge
thermal trap
(w/ drain plug)
Drawing 3G
zone
circulators
Munchkin
Contender
Heater
outdoor
temperature
sensor
(Vision 1 system)
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