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

3f Venting — direct exhaust — installation

1.Do not mix types or manufacturers of vent materi- als.

2.Clean all joints before sealing. See vent manufac- turer’s instructions for cleaning and sealing joints.

Use their specified sealant. Do not use screws.

3.Install vent pipe with seams on top of vent horizon- tal runs. Follow requirements in Section 3e for vent termination.

4.Maintain minimum 2” clearance from combustible materials to vent pipe.

5.Vertical venting — See Figure 13. Follow vent manufacturer’s instructions for venting through roof.

•Vent pipe must extend through roof flashing, jacket or thimble.

•Vent may pass through floor, inside wall or concealed space when installed according to vent manufacturer’s instructions.

Sidewall venting — See Figures 14 and 15.

Vent must terminate at least one foot above anticipated snow line. Vent must be termi- nated only with:

•Tee or elbow with integral screen. (Tee may be mounted either vertically or horizontally.)

•Elbow and termination coupling with screen (not available for StaR-34).

6.Do not seal vent pipe (slip connector for Saf-T Vent) to inside or outside plate.

7.If passing through noncombustible wall, provide hole diameter large enough to insert the vent pipe

(slip connector for Saf-T Vent).

8.Install horizontal drain tee as close as possible to boiler, in first horizontal run. See Figures 13 and 14.

9.Do not exceed the maximum vent system length given in Table 4, page 15.

Condensate drain line — use only silicone tubing rated for at least 400°F for the first 18” of condensate drain line, then other non-metallic tubing may be used. Us- ing any other material could cause flue gas leakage, potentially resulting in severe personal injury, death or substantial property damage.

On some installations, the condensate drain fitting may be omitted, provided:

•Vent manufacturer shows this option in their instruc- tions.

•Vent is sloped toward termination as shown in dotted lines in Figure 14.

•The vent is installed per Weil-McLain and vent manufacturer’s instructions.

•Condensate drippage from such vents may accumu- late on the ground below. Consider traffic in the area to avoid hazard due to ice accumulation.

Figure 13  Direct exhaust vertical venting

Figure 14  Direct exhaust sidewall venting

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Part Number 550-110-711/1108

 

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Weil-McLain CGI-4E manual 3f Venting direct exhaust installation, Do not mix types or manufacturers of vent materi- als
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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.
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