GOLD CGa Gas-Fired Water Boiler — Boiler Manual

6d Start-up — verify operation

4HEHBOILER MODELDSUFlXFWILL BE h30$v &OROSPARKIGNITEDIPILOTLBOILERSLSUFlX h0)$v SEEE 3ECTIONT or  for operation and lighting/operating information.

Check burner flames

Pilot burner flame (&IGURE )

PROPER pilot flame

 "LUE mAME

2.Inner cone engulfing thermocouple (standing pilot) or pilot flame sensor (spark-ignited pilot).

3.Thermocouple or pilot flame sensor glowing cherry red.

IMPROPER pilot flame

1.Overfired — Large flame lifting or blowing past pilot flame sensor.

2.Underfired — Small flame. Inner cone not engulfing pilot flame sensor.

 ,ACK OFKPRIMARY AIRR I9ELLOW mAMEATIP

4. Incorrectly heated pilot flame sensor.

Main burner flame (&IGURE )

PROPER main burner flame

&IGURE R Typical pilot burner flame

&IGURE R Typical main burner flame

 9ELLOWORANGE STREAKSE MAYA APPEAR CAUSEDU BY dust).

IMPROPER main burner flame:

1.Overfired — Large flames.

2.Underfired — Small flames.

 ,ACK OF PRIMARYMAIRI ˆ 9ELLOW TIPPINGPON mAMESM (sooting will occur).

Check vent damper operation

1. 2AISEIROOMOTHERMOSTAT TO CALL FOR HEAT 6ENT

damper actuator will slowly open vent damper.

2.7HEN VENT DAMPER IS FULLYYOPEN — Main gas valve will open and main burners will ignite. (Spark-ig- nited pilot controls will first light pilot, then allow main burners to ignite.)

6ENT DAMPER MUST BE FULLYL OPEN before main burners light. If vent damper does not fully open, flue products such as carbon monoxide will escape into house, causing se- vere personal injury or death.

3.,OWERETHERMOSTAT SETTING — Main burner flames will go out, then vent damper will close.

4.2EPEAT 3TEPSETHROUGH  several times to verify operation.

32

5.Return thermostat to normal setting.

6.Set thermostat heat anticipator setting indicated on wiring diagram.

Check vent system operation

 #HECKEVENT SYSTEM AT LEASTAONCE AAMONTHNDURING

heating season. With boiler firing, hold candle or MATCHTBELOWLLOWERWEDGE OF DRAFTAHOOD hSKIRTv )F flame does not blow out, but burns undisturbed, vent system is functioning properly. If flame blows out or flickers drastically, inspect vent system for obstructions or other causes of improper venting (such as exhaust fans in boiler room).

Part Number 550-101-009/0107

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Weil-McLain CGA25SPDN manual 6d Start-up verify operation, Check burner flames, Check vent damper operation
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CGA25SPDN specifications

The Weil-McLain CGA25SPDN is a high-efficiency gas-fired boiler designed to deliver dependable heating performance while maintaining a strong focus on energy savings and user-friendly operation. Ideal for residential applications, this boiler is engineered to provide consistent warmth and comfort in homes with various heating demands.

One of the main features of the CGA25SPDN is its durable construction. Built with high-quality materials, this boiler is designed to withstand the rigors of frequent operation while maximizing longevity. It features an advanced cast iron heat exchanger that efficiently transfers heat to the water, resulting in lower energy costs and improved overall performance.

Efficiency is a key characteristic of the Weil-McLain CGA25SPDN. Its design promotes efficient combustion, allowing for a higher Annual Fuel Utilization Efficiency (AFUE) rating. With an AFUE rating of up to 82%, this boiler ensures that more of the fuel used is converted into usable heat, which translates to reduced energy bills for homeowners.

The boiler exhibits a user-friendly control system that allows for easy operation and maintenance. It comes equipped with an integrated vent damper that maximizes efficiency by reducing heat loss during standby periods. Additionally, the CGA25SPDN features an adjustable thermostat, enabling homeowners to customize their heating preferences easily.

Another significant feature of the CGA25SPDN is its versatility. The boiler is compatible with various heating applications, including hot water heating systems and home heating configurations. This adaptability makes it a great choice for both new installations and retrofitting existing systems.

Safety is always a concern with gas-fired appliances, and the Weil-McLain CGA25SPDN addresses this through its advanced safety mechanisms. The boiler incorporates safety controls that prevent overheating and ensure proper operation, providing peace of mind to homeowners.

In summary, the Weil-McLain CGA25SPDN stands out as a reliable and efficient heating solution for residential settings. With its durable construction, high-efficiency performance, user-friendly controls, and impressive safety features, it is an exceptional choice for those seeking a dependable gas-fired boiler that meets modern heating demands while keeping energy costs in check. Homeowners can trust the Weil-McLain CGA25SPDN for warmth and comfort through the cold months.
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