Weil-McLain PLUS-E017-A/1206 manual C Boiler-sidepiping except Gas continued, Wiring options

PLUS LINE  Indirect-Fired Water Heaters – Series 3

C Boiler-side piping (except Gas)  continued

Figure 20

GOLD Plus 30/40/60/80

Plus 40/60/80

•Zoning with pumps

•Place pumps at beginnings of zones. Placing them at the ends of zones could result in heating idle zones.

•Size manifold piping for total flow of all zone pumps.

•Locate flow/check valves as close as possible to water heater boiler side connections

— to reduce heat loss between cycles.

•Pipe GV boilers only as shown on page 24.

Wiring options:

•Figure 30, page 48 — WMCR zone controller, optional priority

•Figure 31, page 49 — Priority zone pump

•Figure 32, page 50 — Pump relays with domestic priority

•Figure 33, page 51 — Pump relays without domestic priority

Notes	1.	This drawing is conceptual only. It shows representative piping components and layout.
		Weil-McLain does not represent that this drawing meets any particular mechanical or
		building codes. The installer is responsible for inclusion of all required safety devices, or
		other miscellaneous piping hardware not shown on drawing. The installer is responsible
		for proper sizing/selection of all hardware shown on this diagram.
	2.	See Weil-McLain installation instructions for specific details on installing the boiler.

36 Part Number PLUS-E017-A/1206