Natco VW Installation And Operating Instructions Manual page 11

Hot Water
Return From
Bldg.
Throttling
Valve
Check
Valve
Bldg.
Loop
Circ.
Pump
With
Horizontal
Tank
NOTES:
Heavy line indicates Heater to Tank Circulating Loop.
Hot
Water
To Bldg.
Conventional
Tank
Cold
Water
Hot
Water
To Bldg.
Hot
Water
Storage
Tank
24" Min.
Bldg.
Loop
Circ.
Pump
Cold
Water
Figure 11 – Hot Water Supply System (Model VW & PW)
Optional Cold Water Supply
When Adequate Tank Opening
Not Available
Pump
PW Series
VW Series
Service
Valves
To Drain
To Drain
Conventional
Tank
Drain
Service
Valves
11
To
Drain
With
Vertical
Tank
Pump
PW Series
VW Series
To
Drain
To Drain