GOLD CGa Gas-Fired Water Boiler — Boiler Manual

10b Service & maintenance – annual start-up (cont.)

OCleaning boiler heating surfaces

The boiler contains ceramic fiber and fiberglass materi- als. Use care when handling these materials per instruc- tions on PAGE  of this manual. Failure to comply could result in severe personal injury.

1.Shut down boiler:

s &OLLOW h4O 4URNR /FFF 'ASA TO !PPLIANCEvvIN- structions on boiler and ,IGHTING OR /PERATINGA INSTRUCTIONS.

ss$O NOTODRAINABOILER UNLESS IT WILL BE EXPOSEDO to freezing temperatures. If using antifreeze in system, do not drain.

2.Follow shutdown procedure.

3.Remove venting system connection to boiler.

4.Remove top jacket panel. Turn back insulation.

 2EMOVE mUEUCOLLECTOR #LEANESEALANTLFROM ASSEMBLY and sections.

6. Remove radiation plates hanging between sections.

 2EMOVE BURNERSN FROM BASES "RUSHU ANDN VACUUM BURNERSNTO REMOVE ALLLDUST ANDNLINTN6ERIFY THAT ALLL burner ports are free of debris.

8.Place newspapers in base of boiler to collect soot.

 #LEANEBETWEENBSECTIONS WITH WIRE mUE BRUSH

2EMOVE NEWSPAPERPANDNSOOTO6ACUUM OR BRUSHUBASE and surrounding area.

11.Reinstall radiation plates.

12.Replace collector box/transition assembly. Seal with sealant. Obtain gas-tight seal to prevent flue gas spillage and carbon monoxide emissions, resulting in severe personal injury or death.

13.Replace insulation and jacket top panel.

14.Start up boiler following Section  of this manual and the boiler ,IGHTING OR /PERATINGAINSTRUCTIONS

(Section B or B). Excessive sooting indicates improper gas combustion. If found, check for proper combustion and make any necessary adjustments.

11a Troubleshooting — procedure

Label all wires prior to disconnection when servic- ing controls. Wiring errors can cause improper and dangerous operation.

.EVERVJUMPER BYPASS ROLLOUTLTHERMALRFUSE ELE- ment or any other device except for momentary testing as outlined in 4ROUBLESHOOTING #HARTS. Severe personal injury, death or substantial prop- erty damage can result.

"URNER ACCESS PANELNMUST BE IN POSITION DURING boiler operation to prevent momentary flame rollout on ignition of main flame. Severe per- sonal injury or substantial property damage will result.

3EEEPAGESG  THROUGHO  FOROADDITIONAL TROUBLE-

shooting information.

Before troubleshooting:

 (AVE THE FOLLOWING ITEMS

A 6OLTMETERMTHAT CAN CHECK  6!# AND  6!#

b.Microammeter with a minimum scale range of 0-25.

C #ONTINUITY CHECKER

d. U-tube manometer.

 #HECKEFORO6!#!MINIMUM 6!#!TO MAXIMUMIU6!# TOBOILER

3.Make sure thermostat is calling for heat and contacts (including appropriate zone controls)

ARERCLOSEDS#HECKEFORO 6!#!BETWEENWTHERMO- stat wire nuts and ground.

Part Number 550-101-009/0107



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Weil-McLain CGA25SPDN manual 11a Troubleshooting procedure, Before troubleshooting,  #Ontinuity Checker

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.