6

EG, PEG, EGH GAS-FIRED BOILERS — SERIES 4 — BOILER MANUAL

 

Wiring

Refer to control supplement for additional information

For your safety, turn off electrical power supply before making any electrical connections to avoid possible electrical shock hazard.

All wiring must be installed in accordance with requirements of National Electrical Code and any additional national, state or local code requirements having jurisdiction. ALL wiring must be N.E.C. Class 1. Boiler must be electrically grounded in accordance with National Electrical Code, ANSI/NFPA No. 70-latest edition.

In Canada, installation must conform to CSA C22.1 Canadian Electrical Code Part 1 and any local codes.

If original rollout thermal fuse element wire as supplied with boiler must be replaced, type 200°C wire or equivalent must be used. If other original wiring as supplied with boiler must be replaced, type 105°C wire or equivalent must be used.

Installer must attach wiring diagram inside jacket door.

A separate electrical circuit with a fused disconnect switch (15 amp. recommended) should be used for the boiler.

A strain relief bushing and adapter must be used at each point where wiring passes through control case (see Figure 23) to protect wiring insulation.

Refer to zone valve manufacturer’s literature for wiring and application. A separate transformer is required to power zone valves. Zoning with circulators requires a relay for each circuit.

Install room thermostat

Install room thermostat on an inside wall. Never install where it will be influenced by drafts, hot or cold water pipes, lighting fixtures, television, rays of the sun or near a fireplace.

Refer to Control Supplement or correct wiring diagram for recommended heat anticipator setting with Standard equipment. Wire thermostat as shown.

Figure 23 Wiring multiple zones

Part Number 550-110-639/0703

15

Page 14 Page 16
Page 15
Image 15
Weil-McLain EG manual Wiring, Install room thermostat
Page 14 Page 16

EG specifications

The Weil-McLain EG Series is a notable line of cast iron, steam, and hot water boilers designed primarily for commercial and residential heating applications. Known for its robustness and efficiency, the EG boiler series has become a preferred choice for many heating professionals.

One of the main features of the Weil-McLain EG series is its durable cast iron construction. This material not only contributes to the longevity of the boiler but also ensures excellent heat retention and uniform heating. The boiler's heat exchanger is optimized to maximize thermal efficiency, delivering reliable and effective heating performance across various applications.

Another key aspect of the EG series is its heating capacity. Available in a range of sizes and outputs, the EG boiler provides flexibility, making it suitable for different heating needs. Whether it’s a small residential installation or a larger commercial system, the EG series offers models that can be tailored to meet specific load requirements.

Advanced technology is integrated into the Weil-McLain EG series to enhance efficiency and ease of use. One notable feature is its ability to operate with both gas and oil fuel types, enabling users to choose the most economical and accessible option for their needs. Additionally, the EG boilers come equipped with a reliable and intuitive control system that simplifies operation and maintenance tasks, allowing users to monitor performance easily.

The EG series also incorporates safety features, such as pressure relief valves and advanced combustion controls, which ensure safe and efficient operation. This attention to safety is essential in protecting both the system and the inhabitants of the building it serves.

Maintenance of the EG boiler is designed to be straightforward, with serviceability being a prominent focus in its design. The boiler's modular components can be accessed easily, significantly reducing downtime for repairs and maintenance.

In conclusion, the Weil-McLain EG series stands out for its reliable performance, efficiency, versatility, and robust construction. Its combination of advanced technology and user-friendly features makes it a leading choice for those seeking a dependable heating solution. Whether for residential or commercial applications, the EG series is engineered to deliver consistent heating while maximizing comfort and minimizing operating costs.
Top Page Image Contents