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2.
See Figure #8 for typical piping for domestic hot water
heater.
• Automatic mixing valve must be installed on tankless
heater outlet. Install per valve manufacturer's
instructions.
• Install adjustable flow restrictor in cold water inlet
due to varying water conditions.
3.
See Figures #9 and #10 for the suggested piping for
a modular steam boiler.
Figure #8
SUPPLY AND RETURN PIPING
PIPING FOR BUILT-IN
DOMESTIC HOT WATER HEATER
PIPING FOR BUILT-IN
DOMESTIC HOT WATER HEATER
UNTEMPERED HOT WATER TO
UNTEMPERED
WATER
HOT
FLOW
CONTROL
REGULATOR
T & P VALVE
COLD WATER IN
Water temperatures exceeding 125°F will cause
severe burns instantly or death by scalding.
AUTOMATIC WASHER
TEMPERING VALVE
INSTALLED BELOW CENTER
LINE OF BOILER HOT
CONNECTION
COLD WATER
10
!
DANGER
DOMESTIC
HOT WATER
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