Weil-McLain WTGO Series Manual page 15

Connect Water Piping
Isolation
Cold
Water Fill
To Diaphragm
Expansion Tank and
Fittings
*Alternate Pump Location
Isolation
Valve
*Alternate Pump Location
Circulator
Automatic
Air Vent
From
Valve
System
*Circulator
Piping with DIAPHRAGM Expansion Tank
Circulator
From
System
*Circulator
Piping with CLOSED Expansion Tank
CONTINUED
Isolation
Valve
To
System
"N" Tapping
Relief
Valve
"B1" Tapping
FIGURE 8
Closed Type
Expansion Tank
Cold Water Fill
Isolation Valve
To
System
"N" Tapping
Relief
Valve
"B1" Tapping
FIGURE 9
"C" Tapping
"C" Tapping
15