GOLD CGa Gas-Fired Water Boiler — Boiler Manual

12f Replacement parts — controls

&IGURE R Gas control assembly

Item

Description

Manufacturer

Manufacturer’s

Weil-McLain

number

 

 

part number

part number

Standing pilot — Natural gas components

 

 

 

 

 

 

 

 

1

Gas valve, 1/2" x 1/2", CGa-25 through CGa-6

Honeywell

VR8200A2116

511-044-360

 

Gas valve, 3/4" x 3/4", CGa-7 and CGa-8

Robertshaw

7200ER

 

 

Honeywell

VR8300C4050

511-044-256

2

Pilot assembly kit with orifice

Weil-McLain

 

510-811-644

 

 

 

 

 

3

Tubing, pilot, aluminum

 

 

560-742-860

4

Tubing, thermocouple

 

 

511-724-254

 

 

 

 

 

 

Propane gas components

 

 

 

1

Gas valve, 1/2" x 1/2", CGa-25 through CGa-6

Honeywell

VR8200C1074

511-044-258

 

Gas valve, 3/4" x 3/4", CGa-7 and CGa-8

Honeywell

VR83004068

511-044-257

2

Pilot assembly kit with orifice

Weil-McLain

 

510-811-646

 

 

 

 

 

3

Tubing, pilot, aluminum

 

 

550-742-860

4

Tubing, thermocouple

 

 

511-724-253

 

 

 

 

 

 

Natural gas and propane gas components

 

 

 

 

 

 

 

 

5

Transformer relay

 

 

510-312-167

not shown

Wiring harness

 

 

591-391-862

 

 

 

 

 

Spark ignition

 

 

 

 

 

 

 

 

6

Gas valve, 1/2" x 1/2", CGa-25 through CGa-6

Honeywell

VR8204A2001

511-044-381

 

 

White-Rodgers

36E36-266

 

 

Gas valve, 3/4" x 3/4", CGa-7 and CGa-8

Robertshaw

7200 IPER

511-044-382

 

Honeywell

VR8304P4348

 

 

White-Rodgers

36C74-474

 

7

Pilot assembly kit with orifice and aluminum pilot gas tubing

Weil-McLain

 

511-330-218

 

 

 

 

 

8

Control module

United Technologies

1107-2

511-330-079

9

Control transformer

 

 

511-842-370

 

 

 

 

 

not shown

Wiring harness, controls to control module

 

 

591-391-905

Pilot gas pressure regulator — Natural gas and propane gas, CGa-25 and CGa-3

 

 

 

 

 

 

 

not shown

Pilot gas pressure regulator 4.0" w.c. outlet

Maxitrol

RV-12

510-933-126

 

 

SLP

SL-50N

 

not shown

Tubing, from gas valve to regulator

Weil-McLain

 

560-742-859

not shown

Adapter, male 1/8" x 7/16" – 24, from regulator to pilot gas line

Weil-McLain

 

562-302-017

Part Number 550-101-009/0107

 

 

65

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Image 65
Weil-McLain CGA25SPDN manual 12f Replacement parts controls, Igure R Gas control assembly

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.