Weil-McLain PLUS LINE PLUS-E017-A/1206 - Manual (Page 51)

Part Number PLUS-E017-A/1206 1
Manual
• Installation • Start-Up • Usage • Maintenance • Parts
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.
. See Weil-McLain installation instructions for specific details on installing the boiler.
Notes
Figure 33
Typical wiring:
• Zoning
with pumps
• Using pump relays
• No domestic priority
• Also refer to Weil-McLain
Boiler Zone Wiring Guide for
further details.
• Refer to Wiring requirements on
page 35.
System piping —
Apply this wiring to systems
in:
• Figure 20, page 36
• Figure 21, page 37
P rimary/secondary piping sys-
tems
Boiler loop pump (for primary/
secondary piping systems, as in Fig-
ure 21, page ) should be powered
by the boiler control or transformer/
relay for packaged residential boilers.
Provide a pump relay for this pump
when pump relay is not provided
with boiler.
D
Boiler-side wiring & controls
(except Gas)
continued