GOLD CGi-4E Gas-Fired Water Boiler — Boiler Manual

7a Start-up — preparation

Check for gas leaks

Before starting the boiler, and dur- ing initial operation, smell near the floor and around the boiler for gas odorant or any unusual odor. Do not proceed with start-up if there is any indication of a gas leak. Repair any leak at once.

Propane boilers only — Your pro- pane supplier mixes an odorant with the propane to make its presence detectable. In some instances, the odorant can fade and the gas may no longer have an odor.

Propane gas can accumulate at floor level. Smell near the floor for the gas odorant or any unusual odor. If you suspect a leak, do not attempt to light the pilot.

Use caution when attempting to light the propane pilot. This should be done by a qualified service technician, particularly if pilot outages are common.

Periodically check the odorant level of your gas.

Inspect boiler and system at least yearly to make sure all gas piping is leak-tight.

Consult your propane supplier regarding installation of a gas leak detector. There are some products on the market intended for this purpose. Your supplier may be able to suggest an appro- priate device.

Determine if water treatment is needed

Do not use petroleum-based cleaning or sealing

compounds in boiler system. Severe damage to boiler

will occur, resulting in substantial property damage.

Eliminate all system leaks. Continual fresh makeup water will reduce boiler life. Minerals can build up in sections, reducing heat transfer, overheating cast iron, and causing section failure.

Verify water chemistry

Consult local water treatment companies for unusually hard water areas (above 7 grains hardness) or low pH water conditions (below 7.0). Boiler water pH of 7.0 to 8.5 is recommended.

Freeze protection (when used)

Use antifreeze made especially for hydronic systems. Inhibited propylene glycol is recommended.

Do not use ethylene glycol, automotive or undiluted

antifreeze. Severe personal injury or death can result.

1.Determine antifreeze quantity according to system water content.

Boiler water content is listed on page 67. Remember to include expan- sion tank water content.

2.Follow antifreeze manufacturer’s instructions.

3.A 50% solution of propylene glycol/water provides maximum protec- tion to about -30°F.

4.Local codes may require back flow preventer or actual disconnect from city water supply.

5.When using antifreeze in a system with automatic fill, install a water meter to monitor water makeup. Glycol will leak before the water begins to leak, causing glycol level to drop. Added water will dilute the antifreeze, reducing the freeze protection level.

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Part Number 550-110-711/1108

 

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Weil-McLain CGI-4E manual 7a Start-up preparation, Check for gas leaks, Determine if water treatment is needed

CGI-4E specifications

The Weil-McLain CGI-4E is a standout in the realm of commercial boilers, designed to meet the rigorous demands of a variety of heating applications. This gas-fired cast iron boiler exemplifies durability, efficiency, and performance, making it a popular choice in various commercial settings, including schools, hospitals, and office buildings.

One of the main features of the CGI-4E is its cast iron construction. Cast iron has long been favored for its excellent heat retention and distribution capabilities, leading to improved overall efficiency. The boiler is designed to maximize heat output while minimizing energy consumption. This characteristic is especially beneficial for businesses seeking to lower their energy costs without sacrificing comfort.

In terms of efficiency, the Weil-McLain CGI-4E boasts an impressive thermal efficiency rating. Its design incorporates advanced technology, allowing it to achieve an AFUE rating of up to 84%. This efficiency is achieved through features such as a full-modulating burner and a unique heat exchanger design that allows for optimal heat transfer and reduced flue gas temperatures.

The CGI-4E is also remarkable for its versatility. It is offered in a variety of sizes, making it suitable for different heating loads. This flexibility allows for installation in a wide range of environments, adapting easily to both existing and new heating systems. Additionally, the boiler comes with multiple venting options, including direct vent and conventional venting, further enhancing its installation flexibility.

Another standout feature is the integrated boiler control system, which simplifies operation and monitoring. This control system optimizes burner performance and enhances safety features, including automatic shut-off in case of system anomalies. The advanced controls also allow for easy integration with building management systems, enabling better energy management and reduced operational costs.

The CGI-4E also emphasizes ease of maintenance, with service-friendly designs that allow technicians to access components without difficulty. This consideration translates to reduced downtime and lower maintenance costs, ensuring that the boiler operates efficiently over its lifetime.

Overall, the Weil-McLain CGI-4E blends reliability, efficiency, and advanced technology, making it a premier choice for commercial heating needs. Its cast iron construction, impressive efficiency ratings, versatile installation options, and user-friendly controls solidify its reputation as a leading boiler solution in the industry.