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Part Number PLUS-E017-A/1206
PLUS LINE
Indirect-Fired Water Heaters – Series 3
1. These drawings are conceptual only. They show representative piping components and
layout. Weil-McLain does not represent that the drawings meet 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 drawings. The installer is responsible
for proper sizing/selection of all hardware shown on this diagram.
2. Follow component manufacturer’s instructions for installation of all items shown.
3. See Weil-McLain installation instructions for specific details on installing the boiler.
Notes
Figure 30
Typical wiring:
• Zoning with pumps
• Weil-McLain circulator zone
controller (WMCR-4 shown)
• Refer to Wiring requirements on
page 47.
System piping —
Apply this wiring to systems
in:
• Figure 20, page 36
• Figure 21, page 37
Domestic water priority with Weil-McLain WMCR Circulator Zone Controller
Boiler-side wiring & controls (except Gas) continuedD