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HTD
Figure 14. DHW Piping - Two Heaters, Two Vertical Tanks
NOTES:
1. Optional CWMU & recirculation line location.
2. Locate NTV DHW sensor or remote aquastat well in lower 1/3 of tank.
3. Back Flow Preventer may be required. Check local codes.
4. Thermal expansion tank may be required. Check local codes.
5. Factory mounted pumps are sized for a max pipe length of 30’ total, 6-90° elbows, full pipe size.
6. CAUTION: Pump sizing must be based upon water hardness at job site.
NOTE:
This drawing shows
suggested piping
configuration and valving.
Check with local codes and
ordinances for additional
requirements.
EXPANSION
TANK
Location of pump
.
Location of pump
.
Optional location for
COLD WATER SUPPLY
EXPANSION
TANK
BUILDING
RETURN
BALL VALVE
(TYPICAL)
TWO HEATERS
WITH TWO VERTICAL TANKS
MGV-DOM3-2H2VT
KEY:
..
Check valve
Check valve
