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

Standard equipment

Factory-Assembled Section Block Insulated Extended Jacket Draft Hood

Aluminized Steel Burners

Non-Linting Pilot Burner

Heater Cover Plates (for boilers with tankless heater openings) Control Wire

Electrical Junction Box

EG boilers add:

Combination Gas Valve for 24 volt Thermocouple (high efficiency models) Rollout Thermal Fuse Element

Spill Switch

Highest Efficiency Models, PID Intermittent Electronic Ignition System and Automatic Vent Damper

High Efficiency Models, SPD Constant Burning, Thermally Supervised Pilot System and Automatic Vent Damper

For EG water boilers

Built-In Air Eliminator 30 P.S.I. Relief Valve

Combination Pressure Temperature Gauge High-Limit Control

40 VA Transformer with Receptacle for Circulator Relay Circulator Relay

For EG steam boilers

Relief Valve

Steam Pressure Gauge

High-Limit Pressure Control

Syphon

Gauge Cocks

Gauge Glass

Low-Water Cutoff

40 VA Transformer

EG additional equipment

Tankless Water Heater – EG-35-65 PI and SP EG-75 PI only

With tankless heater: Combination High Limit, Low Limit, Circulator Control, and Relay with 40 VA Transformer

Tankless Steam Heater - EG35-75 With Tankless Heater:

Operating Control Tankless Heater 35-S-29 for All Units

EGH boilers add:

Combination Gas Control Valve (includes main gas valve with redundant seat, PI and PI with damper models; main gas valve with single seat, 24V models; pressure regulator, gas cock, pilot filter, pilot adjustment)

Highest Efficiency Models, PI Intermittent Electronic Ignition System

High Efficiency Models, SP Constant Burning, Thermally Supervised Pilot System, Thermocouple

100% Shutoff

40 VA Transformer with Receptacle for Circulator Relay

For EGH water boilers

Built-in Air Eliminator 30 P.S.I. Relief Valve

Combination Pressure-Temperature Gauge High-Limit Control for PI and PI with Damper Models Dual-Limit Control for Standard Efficiency Models Circulator Relay

For EGH steam boilers

Relief Valve

Steam Pressure Gauge

High-Limit Pressure Control (two limit controls on EGH-85 and 95 SP) Syphon

Gauge Cocks

Gauge Glass

Low-Water Cutoff – Probe Type

EGH additional equipment

Tankless Heaters – PI Water or Steam,

SP Steam only

With Tankless Heater(s):

Operating Control

Automatic Vent Damper

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Part Number 550-110-639/0703

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Weil-McLain Standard equipment, EG boilers add, For EG water boilers, For EG steam boilers, EG additional equipment

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.