17
4 - CONNECTING SUPPLY AND RETURN PIPING
PIPING LEGEND:
Figure 4-7 - Multi Zone System With Zone Valves And DHW Priority (With Zone Valve)
T & P Relief
Valve to
Drain
Cold
Water
Supply
Optional
Indirect
DHW Tank
Make-up
Water
Supply
Tank
Sensor
CH /System
Pump
ASME
Relief
Valve
1
DHW Pump
12 " (305 mm) Recommended distance.
Do not exceed 12".
Note
Note
* Manufacturer requires all domestic
hot water (DHW) installations use
an anti-scald valve. Local codes
may require additional equipment
(expansion tank, relief valves,
etc.) Select and size equipment
to suit installation and meet code
requirements.
* Hot
Water
Supply
Tempered
Note
Refer to pump manufacturer
literature for proper pump sizing.
TO SYSTEM
FROM SYSTEM
1
Back Flow Valve
PN 240012787 Rev. C [11/15/2020]
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