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

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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.

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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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Contents Gold CGa How it works Other boiler componentsGold CGa Gas-Fired Water Boiler Contents User InstallerPlease read before proceeding 1a Prepare boiler location codes & checklist Installations must follow these codesBefore locating the boiler, check the following Ss .ATIONAL %LECTRICAL%#ODEResidential garage installations Minimum dimensions are v Length by1b Prepare boiler location clearances FoundationWhen removing boiler from an existing common vent system 1c Prepare boiler location vent systemChimney or vent require- ments Line chimney with corrosion-resistant metal1d Prepare boiler location air contamination Products to avoidTHEHBOILER #HECKETHEHBOILER Placementecompared 1e Prepare boiler location air openingsAir openings must be provided To a,Exhaust fans and air movers Motorized air dampersSingle air opening option Exception for large spaces2a Prepare boiler placement and setup Orifice replacement procedurePlace boiler/crate near position Inspect orifices and burners2b Prepare boiler pressure test Hydrostatic pressure testDrain and remove fittings Prepare boiler for testPrepare boiler draft hood & spill switch Prepare boiler install vent pipingDraft hood installation Spill switch installation2e Prepare boiler vent damper installation InstallationDamper blade Minimum clearances3a Water piping general information Closed-type expansion tank 3b Water piping single-zone systemDiaphragm-type or bladder- type expansion tank Figure 3c Water piping multiple zones Piping multiple zones3c Water piping multiple zones 3d Piping low temperature systems Temperature gaugesValve adjustment Figures 13 and 14 only Primary/secondary preferred Bypass piping methodONE Valve $RAINAVALVE LendetemperaturemgaugeOiler Isolation BALANCING Valves Valve adjustment BOILER-bypass piping method13 !IRISEPARATORRANDNAUTOMATICMVENT NIF Used .OTEOTHAT Theh SYSTEM-bypass piping method Gold CGa Gas-Fired Water Boiler Boiler Manual Gas piping Connect gas supply piping to boilerNatural Gas Propane GasField wiring Installation must comply withWiring connections Ational %LECTRICAL #ODE !.3.&0! LATESTA EDI- tionFreeze protection when used 6a Start-up preparationCheck for gas leaks Determine if water treatment is needed Verify water chemistryFill the system with water Inspect system water pipingInspect base insulation  #LOSEOZONE Isolation VALVESSs 6ERIFY the Boilerhand System are Full Oflwater 6b Start-up operate boilerEfore STARTINGSTHEABOILER NDO the FOLLOWING 6c Start-up if boiler doesn’t start Start the boilerCheck system and boiler Check for6d Start-up verify operation Check burner flamesCheck vent damper operation Check vent system operationCheck-out procedure checklist OO Utton Onospilloswitch PUSHEDLINOO !IRIPURGED FROMGSYSTEM  #ALCULATEUGASAINPUT8a Operation standing pilot boilers Main ignited until thermostat circuit or limit circuit8b Lighting instructions CGa-25 to CGa-8 8b Lighting instructions CGa-25 to CGa-8 9a Operation spark-ignited pilot boilers GAS mOWSSTO Pilot or Main GAS VALVE#ALL for HEATHthermostat circuit closes Damper is de-energized, and cycles to closed posiSchematic wiring diagram Spark-ignited pilot system 9a Operation spark-ignited pilot systemLadder wiring diagram Spark-ignited pilot system 9b Operating instructions CGa-25 to CGa-8 9b Operating instructions CGa-25 to CGa-6 9b Operating instructions CGa-25 to CGa-6 9b Operating instructions CGa-7 to CGa-8 Owner maintenance 10a Service and maintenance scheduleService technician 10b Service & maintenance annual start-up Repair.URNERSNANDRBASE Boiler heating surfacesOiled-bearing circulators Gas piping Cold fill and operating pressuresAir vents and air elimination Limit controls and cutoffsSafety relief valves should be Following installation, the valveReview with owner Boiler relief valve #ONTINUITY CHECKER 11a Troubleshooting procedureBefore troubleshooting Check the following Event of vent damper failureEffikal or Field Controls damper  ASAPRESSURES11b Troubleshooting standing pilot boilers Chart 1 Standing pilot Boiler will not fire11c Troubleshooting spark-pilot boilers Control indicator lights Lockout modesControl indicator lights NON-LOCKOUT modes Troubleshooting the control module11c Troubleshooting spark-pilot boilers Tstat Circ Usually indicates 48 VAC on thermostat circuit stray voltage Chart 4 Spark-ignited pilot Damper light flashing Chart 5 Spark-ignited pilot Flame & Power lights flashing Item 8 , Verify Sequence 12a Replacement parts Section assembly Base Jacket Trim Controls12b Replacement parts section assembly Part number12c Replacement parts base Igure R Base assembly, manifold, orifices and burners12d Replacement parts jacket Igure R Jacket assembly12e Replacement parts trim Igure R Trim assembly12f Replacement parts controls Igure R Gas control assembly13a Dimensions 13b Ratings DOEHandling ceramic fiber and fiberglass materials Jobosite CONDITIONS #URRENT ./3 RecommenREATHING H&RESHGAIR Ss 5SES E./3 .CERTIlED Dust Crespirator E. 

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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