Installation / Operation Instruction Manual

Table Of Contents
Page 33
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
conguration 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