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

2a Prepare boiler — placement & setup

Place boiler/crate near position

1.Leave boiler in crate and on pallet until installation site is ready.

2.Move entire crate and pallet next to selected location.

3.Remove crate.

4.Remove boiler from pallet.

Do not drop boiler or bump jacket on floor or pallet. Damage to boiler can result.

a.Tilt left side of boiler up and place a board under left legs.

b.Tilt boiler the other way and place a board under right legs.

c.Slide boiler backward off pallet and into position.

5.Check level.

a.Shim legs, if necessary.

b.Do not alter legs.

Inspect orifices and burners

1.Remove front jacket door. Remove burner shield (see Figure 40, item 4, page 60).

2.Check for correctly-sized manifold orifices. See Table 2 for sizing. (The orifice size is stamped on the orifice spud barrel.)

Correctly-sized manifold orifices must be used. Failure to do so will result in severe personal injury, death or sub- stantial property damage.

3. Reinstall burner shield.

Do not operate boiler without burner shield in place. Failure to do so could result in severe personal injury, death or sub- stantial property damage.

Orifice replacement procedure

(when required)

1.Remove the screws securing the burner shield and remove burner shield.

2.Using a 7/16” open-end wrench, remove the burner orifices from the manifold.

3.Apply a small amount of pipe dope to each of the new orifices and install in the manifold us- ing a 7/16” open-end wrench. Make sure the ori- fices are aligned correctly, not cross-threaded in the manifold tappings.

Use only pipe dope compatible with propane gas, even if boiler is to be operated on natural gas. Failure to comply could result in severe personal injury, death or substantial property dam- age.

4.Carefully replace the burner shield.

5.Follow the check-out procedure, Section 8, page 37, to assure the boiler is now operating properly after orifices are replaced.

Table 2  Manifold orifice sizing at sea level and altitudes to 4,500 feet

Location

Natural gas

Propane gas

 

 

 

 

 

U. S.

0-2,000 ft

over 2,000 ft

0-2,000 ft

over 2,000 ft

2.55 mm

(Note 1)

1.60 mm

(Note 1)

 

Canada

0-2,000 ft

2,000-4,500

0-2,000 ft

2,000-4,500

2.55 mm

#41

1.60 mm

1.45 mm

 

 

 

 

 

 

Note 1: For elevations above 2,000 feet, contact your local Weil-McLain sales office for details.

12

Part Number 550-110-711/1108

 

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Weil-McLain CGI-4E 2a Prepare boiler placement & setup, Place boiler/crate near position, Inspect orifices and burners
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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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