Manual • Installation • Start-Up • Usage • Maintenance • Parts

D Boiler-side wiring & controls (except Gas)continued

Figure 31

Typical wiring :

• Zoning with pumps

• Using priority zone pump

• Also refer to Weil-McLain Boiler Zone Wiring Guide for

further details.

• Refer to Wiring requirements on page 47.

System piping

Apply this wiring to systems in:

• Figure 20, page 36

• Figure 21, page 37

Primary/secondary piping sys- tems

Boiler loop pump (for primary/ secondary piping systems, as in Fig- ure 21, page 37) 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.

Pump zones

Maximum of 4 total pump zones when wiring one zone for priority.

Notes

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.

Part Number PLUS-E017-A/1206

49

Page 49
Image 49
Weil-McLain PLUS-E017-A/1206 manual Primary/secondary piping sys- tems, Pump zones

PLUS-E017-A/1206 specifications

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