CGa,CGi,CGs,EG,EGH,LGB,PEG,PFGBoilers

❏Check daily . . . . . . . . . . . . . . . . .

Pressure/temperature gauge or pressure gauge (steam)

1.Water boilers — Make sure the pressure reading on the boiler pressure/temperature gauge does not ex- ceed 24 psig. Higher pressure may indicate a problem with the expansion tank or gauge.

2.Steam boilers — Make sure the pressure reading on the boiler pressure gauge does not exceed 15 psig. Higher pressure indicates a problem with the gauge or limit control.

3.Contact a qualified service technician if problem per- sists.

Air openings

1.Verify that combustion and ventilation air openings to the boiler room and/or building are open and unobstructed.

2.CGs boilers — Verify that boiler vent discharge and air intake are clean and free of obstructions. Remove any debris on the air intake or flue exhaust openings.

❏Check monthly . . . . . . . . . . . . . . . .

Boiler piping

1.Visually inspect for leaks around piping, circulators, relief valve and other fittings. Immediately call a qualified service technician to repair any leaks.

Have leaks fixed at once by a qualified service technician. Continual fresh makeup water will reduce boiler life. Minerals can build up in sections, reducing heat transfer, overheating cast iron, and causing section failure.

Do not use petroleum-based cleaning or sealing compounds in boiler system. Severe damage to boiler and system components can occur, resulting in possible severe personal injury, death or substantial property damage.

Venting system

Failure to inspect the vent system as noted above and have them repaired by a qualified service technician can result in vent system failure, causing severe personal injury or death.

1.Visually inspect all parts or the flue gas venting system for any signs of blockage, leakage or joints or deterioration of the piping.

2.CGa and EG boilers:

If flame blows out or flickers severely, the vent system must be checked for obstructions or other causes of improper venting.

b.Verify the vent damper (CGa and EG boilers) opens before burners ignite.

3.Notify your qualified service technician at once if you find any problem.

Boiler relief valve . . . . . . . . .

1.Inspect the boiler relief valve (see Figure 3) and the relief valve discharge pipe for signs of weeping or leakage.

2.If the relief valve often weeps:

•water boilers — the expansion tank may not be working properly.

•steam boilers — limit control may be set too high or there may be system problems.

•Immediately contact your qualified service technician to inspect the boiler and system.

Figure 3 Relief valve

a.With boiler firing, hold a candle or match below lower edge of draft hood “skirt.” If flame does

not blow out, but burns undisturbed, the vent

 

system is working properly.

59203

8

Part Number 550-110-592/1000

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Weil-McLain CGs, PFG, PEG, CGi, LGB, EGH manual Check monthly
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CGi, PFG, PEG, LGB, CGs specifications

Weil-McLain is a highly regarded manufacturer of boilers and hydronic heating systems, well-known for its innovative approach and commitment to quality. Among its extensive product lineup, the PEG, LGB, CGs, PFG, and CGi series stands out due to their advanced engineering, efficiency, and reliability. Each series caters to varying residential and commercial heating needs, making them versatile options for consumers.

The PEG series is recognized for its impressive efficiency ratings and robust construction. It utilizes a cast iron heat exchanger, which not only enhances heat retention but also ensures longevity. Its low water content and advanced control features allow for quick heating response times, making it ideal for homes requiring reliable heat. The PEG series is available in a range of sizes, ensuring a fit for any application.

The LGB series is tailored for light commercial applications, combining efficiency with remarkable performance. Built with Weil-McLain’s signature high-grade cast iron, the LGB models are designed for durability and ease of maintenance. They offer an impressive thermal efficiency and feature a compact design, making them suitable for installations where space is a concern. Advanced options such as multiple venting configurations contribute to their versatility, adapting to various building designs.

The CGs series is specifically designed for commercial applications and emphasizes efficiency through advanced technology, including an intelligent control system that optimizes operation based on demand. Its low NOx design helps meet stringent environmental standards, while its robust build ensures high performance under heavy load conditions. The CGs is often sought after for larger facilities requiring consistent and efficient heating.

Weil-McLain’s PFG series takes efficiency to the next level with its highly efficient gas-fired design. It features a light-weight configuration and quick-connect venting options, which simplify installation. This series is known for its low emissions and high energy efficiency, making it an eco-friendly choice for today’s environmentally conscious consumers.

Lastly, the CGi series is a standout for residential applications, offering flexibility and ease of use. The series features a cast iron heat exchanger and is compatible with various control systems, providing an adaptable and efficient solution for home heating.

Overall, Weil-McLain’s PEG, LGB, CGs, PFG, and CGi series exemplify the company’s dedication to quality, energy efficiency, and customer satisfaction, providing reliable heating solutions for diverse applications.
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