GOLD CGa Gas-Fired Water Boiler — Boiler Manual

6a Start-up — preparation (continued)

Fill the system with water

 #LOSEOMANUAL AND AUTOMATIC AIRIVENTS and boiler drain cock.

2.&ILL TO CORRECTRSYSTEM PRESSURE #ORRECTRPRESSURE WILL VARY WITH EACH application. Typical cold water fill pressure for a residential system is 12 psi.

3.0URGEEAIR from system:

A #ONNECTNAAHOSE TO THEHPURGERVALVELSEE drain valves, item , in sug- gested piping diagrams on pages 17 through 23, &IGURE  through &IGURE ). Route hose to an area where water can drain and be seen.

B #LOSEOTHEHBOILER OR SYSTEM ISOLATIONAVALVELBETWEENWTHEHPURGE VALVEL and fill connection to the system.

C #LOSEOZONE ISOLATION VALVES

d.Open quick-fill valve on cold water makeup line.

e.Open purge valve.

f.One zone at a time, open the isolation valves. Allow water to run through the zone, pushing out the air. Run until no noticeable air mOWOIS PRESENT #LOSEOTHEHZONE ISOLATIONAVALVES ANDNPROCEEDCWITHHTHEH next zone. Follow this procedure until all zones are purged.

G #LOSEOTHEHQUICKlLLKWATERTVALVELANDNPURGERVALVELANDNREMOVE THE hose. Open all isolation valves. Watch that system pressure rises to correct cold-fill pressure.

h.After the system has operated for a while, eliminate any residual air by using the manual air vents located throughout the system.

i.If purge valves are not installed in system, open manual air vents in

SYSTEM ONENAT AATIME MBEGINNINGNWITH LOWEST mOORO#LOSEOVENT WHEN water squirts out. Repeat with remaining vents.

4.Open AUTOMATICMAIRIVENT (diaphragm-type or bladder-type expansion tank systems only) one turn.

5.Open other vents:

a.Starting on the lowest floor, open air vents one at a time until water squirts out.

b.Repeat with remaining vents.

6.Refill to correct pressure.

Inspect system water piping

After filling the boiler and system with water, INSPECTPALL PIPING throughout the system for leaks. If found, repair immediately. Repeat this inspection after the boiler has been started and the system has heated up.

,EAKSAMUSTSBE REPAIRED AT ONCE

Failure to do so can damage the boiler, resulting in substantial prop- erty damage.

$O NOTO USES PETROLEUMBASED

CLEANINGN OR SEALINGL COMPOUNDS in boiler system. Severe damage to boiler will occur, resulting in sub- stantial property damage.

Inspect base insulation

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

&AILURE TO REPLACE damaged insu- lation or reposition insulation can result in a fire hazard, causing severe personal injury, death or substantial property damage.

#HECKETO MAKE SURE BASE INSULATION IS SECURE against all four sides of the base. If insulation is damaged or displaced, DO NOT operate boiler. Replace or reposition insulation.

Part Number 550-101-009/0107



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Weil-McLain CGA25SPDN manual Fill the system with water, Inspect system water piping, Inspect base insulation
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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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