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

Maintain boiler using schedule below

Service technician

(covered in Boiler Manual — for use only by a

qualified service technician)

 

Inspect:

 

• Reported problems

 

Boiler area

 

Air openings

 

• Flue gas vent system

 

Pilot and main burner flames

 

Water piping

-UP

Boiler heating surfaces

Burners, base and inlet air box

START

Service:

 

NNNUAL

Oiled-bearing circulators

Check/test:

 

Start-up:

 

Perform start-up per manual

A

• Gas piping

 

 

Cold fill and operating pressures

 

Air vents and air elimination

 

Limit controls and cutoffs

 

• Expansion tank

 

Boiler relief valve

 

Review:

Owner maintenance

(see following pages for instructions)

 

Check boiler area

Daily

• Check air openings

 

 

 

Check boiler pressure/

 

 

temperature gauge

 

 

 

 

Check boiler interior piping

 

• Check venting system

Monthly

Check air vents

 

 

 

Check boiler relief valve

 

Check automatic air vents (if

 

 

used)

 

 

 

Periodically

Test low water cutoff (if used)

 

 

 

Every 6 months

Operate relief valve

 

 

 

End of season • Shut down procedure

• Review with owner

Tankless water heater (EG and EGH only)

If boiler is used to supply domestic hot water, limit control should be set to supply adequate hot water. Weil-McLain tankless heaters are rated at 200 °F boiler water temperature. To get rated output, set low limit at 200 °F. Limit can be adjusted to meet system hot water

requirements. Differential can be set to 15 ° and adjusted to control level. Lowering the differential will cause a slight variation in water temperature but will decrease burner on-off cycling. High limit should be set at least 20 ° above low limit.

6

Part Number 550-110-592/1099

Page 6
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Weil-McLain CGa manual Maintain boiler using schedule below, Tankless water heater EG and EGH only

CGa specifications

The Weil-McLain CGa is a highly efficient and reliable gas-fired boiler that has established itself as a favorite among homeowners and HVAC professionals alike. Known for its impressive performance and durability, the CGa series is designed to deliver comfort while optimizing energy consumption.

One of the main features of the Weil-McLain CGa is its efficiency. With an AFUE (Annual Fuel Utilization Efficiency) rating of up to 84%, this boiler efficiently converts gas into heat, ensuring minimal energy waste. This efficiency not only translates to cost savings on energy bills but also supports environmental sustainability through reduced emissions.

The CGa boilers are designed for versatility, capable of being used in various applications, including residential heating systems and light commercial settings. With a range of models available, the CGa can meet different heating demands, ensuring consistent comfort regardless of the building size or layout.

The boiler's built-in heating capabilities include the option for either hot water or steam heating, adding to its versatility. Weil-McLain offers multiple BTU outputs across the CGa series, allowing for a customized solution based on specific heating requirements.

State-of-the-art technologies are evident in the CGa's design. The integrated hot surface ignition system enhances start-up reliability, minimizing the risk of combustion issues and ensuring safe operation. Additionally, the unit features a standard draft diverter for efficient venting, allowing for optimal exhaust management within the heating system.

Durability is another key characteristic of the Weil-McLain CGa. Constructed from high-quality materials, these boilers are engineered to withstand the rigors of daily operation. The cast iron heat exchanger provides superior heat retention and longevity, ensuring that the system remains operational for years with proper maintenance.

Installation of the CGa boiler is straightforward due to its compact design and versatile venting options, which can accommodate various installation configurations. This ease of installation combined with a user-friendly interface allows homeowners and technicians alike to manage the system with minimal hassle.

In summary, the Weil-McLain CGa boiler epitomizes efficiency, durability, and versatility. Its advanced technologies and robust construction make it a top choice for those seeking a reliable heating solution for their homes or commercial spaces. With Weil-McLain's commitment to quality and innovation, the CGa series delivers performance that meets the diverse needs of today's heating applications.