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

B1

 

gas

 

Install system water piping (space heating)

 

 

System water piping methods

Figure 11 Expansion tank piping

All piping methods shown in this manual use primary/secondary connection to the boiler loop. These designs ensure proper

flow through the Gas boiler, for the most efficient and reliable operation of the boiler and the heating system. For other piping methods, consult your local Weil-McLain representative or refer to

separate Gas boiler piping guides.

Wall-mounted boilers — Piping can exit bottom of boiler enclosure. See separate wall-mounting instructions for details.

Expansion tank and make-up water

1.Ensure expansion tank size will handle boiler and system water volume and temperature. Allow 3 gallons for the boiler and its piping.

Undersized expansion tanks cause system water to be lost from relief valve and make-up water to be added through fill valve. Eventual boiler failure can result due to excessive make-up water addi- tion.

2.Tank must be located as shown in this supplement, or following recognized design methods. See tank manufacturer’s instructions for details.

3.Connect the expansion tank to the air separator only if the separator is on the suction side of the system circulator. Always install the system fill con- nection at the same point as the expansion tank connection to the system.

4.The piping drawings in this manual show only diaphragm expansion tanks. Use only bladder-type or diaphragm-type tanks with PLUS indirect water heater applications.

5.Refer to the Boiler Manual for other system piping examples.

Diaphragm (or bladder) expansion tank

1.Always install an automatic air vent on top of the air separator to remove residual air from the system.

2.See Figure 11 for correct location of the expansion tank.

DO NOT USE a closed-type expansion tank

The boiler-side piping must be equipped with a diaphragm- or bladder-type expansion tank, NOT a closed-type expansion tank. This is necessary to allow venting air from the top of the indirect water heater boiler-side.

Boiler circulator

The boiler circulator is shipped loose. It must be located in either the return or supply piping, as shown in the appropriate piping diagram in this supplement or the Boiler Manual.

DO NOT use the boiler circulator in any location other than those shown in this manual or the boiler manual. The boiler circulator is selected to ensure adequate

flow through the boiler. Failure to comply could result in unreliable per- formance and nuisance shutdowns from insufficient flow.

Sizing space heat system piping

1.See Figures 12 and 13, pages 26 and 27, or the Gas Boiler Manual for recommended piping. In all diagrams, the space heating system is isolated from the boiler loop by the primary/secondary connec- tion.

2.Size the piping and components in the space heating

Part Number PLUS-E017-A/1206

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Weil-McLain PLUS-E017-A/1206 manual System water piping methods, Expansion tank and make-up water, Boiler circulator
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PLUS-E017-A/1206 specifications

The Weil-McLain PLUS-E017-A/1206 is a high-performance heating boiler that reflects the brand's commitment to quality engineering and advanced technology. This model is renowned for its efficiency and reliability, making it a preferred choice for both residential and commercial heating applications.

One of the standout features of the PLUS-E017-A/1206 is its exceptional efficiency rating. The boiler employs advanced condensing technology, which allows it to utilize the latent heat in exhaust gases. This means it can achieve efficiency levels of over 90%, significantly reducing energy consumption and lowering utility bills. The unit also complies with stringent regulatory standards, making it an environmentally friendly heating solution.

The PLUS-E017-A/1206's compact design is another significant characteristic, allowing for easy installation even in limited spaces. It is built with durable materials that enhance its longevity and efficiency. The sleek appearance of the unit also makes it suitable for various settings, maintaining aesthetic appeal while delivering powerful heating performance.

This boiler is equipped with advanced controls and a user-friendly interface, offering precise temperature management and efficient operation. The control panel showcases a digital display, enabling easy monitoring of system performance. Additionally, it allows for integration with smart home systems, providing users with enhanced control over their heating systems remotely.

Safety features are paramount in the PLUS-E017-A/1206. It includes multiple safety mechanisms designed to prevent overheating and pressure issues, ensuring worry-free operation. These elements, combined with Weil-McLain’s reputation for durable construction, contribute to the boiler’s overall reliability.

The PLUS-E017-A/1206 is designed with ease of maintenance in mind. It features accessible components that can be easily serviced, minimizing downtime and reducing maintenance costs. With Weil-McLain’s extensive network of support, users can rely on expert assistance when needed.

Overall, the Weil-McLain PLUS-E017-A/1206 is a robust heating solution that combines efficiency, safety, and advanced technology. Its range of features makes it an excellent choice for those seeking a dependable boiler that delivers consistent performance and energy savings. Whether for a home or business, the PLUS-E017-A/1206 represents a smart investment in heating technology.
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