Delta Performance PG-25 Installation And Maintenance Manual page 30

Primary Piping
12"
Max.
2
To
system
2
Supply
flow
1
Fig. 11 : Near Appliance Primary
Piping with a Diaphragm
Type Expansion Tank
12"
To
Max.
2
system
Supply
2
flow
Return
flow
Fig. 11B : Near Appliance Primary Piping
with Diaphragm - Type Expansion
Tank (Alternate Circulator Location)
1. Appliance Circulator
2. Shut Off valve
3. Expansion tank
Near Appliance Piping
6
2
7
From system
4 2
Cold Water
fill supply
3
8
Return
flow
2
6
2
7
From system
4 2
Cold Water
fill supply
8
3
2
1
4. Auto fill valve
5. Tank fitting
6. Automatic air vent
12"
Max.
2
2
To
system
2
Supply
flow
1
Return
flow
2
Fig. 11A : Near Appliance Primary
Piping with Closed -
Type Expansion Tank
23
3
5 Cold Water
fill supply
4 2
From system
7
8
7. Air Separator
8. Plug (by others)