Weil-McLain Boiler installation manual Easy-Fit Piping continued

GAS-FIRED WATER BOILER — Installation Manual — Multiple-boiler Systems

Easy-Fit®Piping (continued)

Figure 9 Typical piping for multiple Ultra boilers, using Weil-McLain Easy-Fit®Manifolds

1Flow/check valve (each boiler)

2 Isolation valves (when used)

3 Caps

4Easy-Fit®Manifold (supply), sized per Fig. 6 or Fig. 7, page 8

5Easy-Fit®Manifold (return), sized per Fig. 6 or Fig. 7, page 8

6	Primary circulator	18	System supply
7	Expansion tank (diaphragm type)	19	System return
8	System air eliminator	20	Boiler relief valve and discharge piping,
9	System automatic air vent		installed per Ultra Boiler Manual

13Cold water supply

17 Boiler circulator (each boiler)

10 Part number 550-101-232/0703