GOLD CGa Gas-Fired Water Boiler — Boiler Manual

4Gas piping

Connect gas supply piping to boiler

1.Remove jacket front panel and refer to &IGURE  to pipe gas to boil- er.

a.)NSTALLTDRIP LEG at inlet of gas connection to boiler. Where local utility requires drip leg to be extended to the floor, use appropri- ate length of pipe between cap and tee.

b.)NSTALLTGROUND JOINT UNION for servicing, when required.

c.)NSTALLTMANUALASHUTOFFHVALVE in gas supply piping outside boiler jacket when required by local codes or utility requirements.

d.)N #ANADA — When using manual main shutoff valve, it MUSTSBE IDENTIlED by the installer.

2.3UPPORTTPIPING with hangers, not by boiler or its accessories.

3.0URGEEALLAAIR from gas supply piping.

 "EFORE PLACINGCBOILER IN OPERATION CHECKKBOILER ANDNITSTGASACONNEC

TION FOR LEAKS.

a.#LOSEOMANUALAMAIN SHUTOFF VALVE during any pressure testing at

LESS THAN vHWC

b.$ISCONNECT BOILERCAND GASOVALVE FROM GAS SUPPLYYPIPING dur-

INGNANY PRESSURE TESTING GREATER THANEvTWC

$O NOTOCHECKKFOR GASALEAKSAWITH AN OPEN mAME — Use bubble test. Failure to use bubble test or check for gas leaks can cause severe personal injury, death or substantial property damage.

5.5SES PIPE DOPE COMPATIBLE WITH PROPANEA GASES Apply sparingly only to male threads of pipe joints so that pipe dope does not block gas flow.

&AILURE TO APPLYYPIPE DOPE as detailed above can result in severe personal injury, death or substantial property damage.

Table 4 Pipe capacity for 0.60 specific gravity natural gas

Gas pipe

 

Capacity of pipe for pipe size of:

 

length

 

(Capacity in cubic feet gas per hour)

 

(feet)

½"

¾"

1"

1¼"

1½"

10

132

278

520

1050

1600

 

 

 

 

 

 

20

92

190

350

730

1100

30

73

152

285

590

860

 

 

 

 

 

 

40

63

130

245

500

760

50

56

115

215

440

670

 

 

 

 

 

 

75

45

93

175

360

545

100

38

79

150

305

460

 

 

 

 

 

 

150

31

64

120

250

380

 

 

 

 

 

 

Natural Gas:

1.Refer to 4ABLE  FOROPIPE LENGTH ANDNDIAMETERE"ASE on rated boiler input (divide by 1,000 to obtain cubic

feet per hour). 4ABLE  is only for gas with SPECIlCC

GRAVITY  WITH AAPRESSURE DROP THROUGH THEH GASAPIPING OF v WC For additional gas pipe

SIZING INFORMATION REFERFTO !.3) : ORO" OR "FOR#ANADIAN INSTALLATIONS 

2.Inlet pressure required at gas valve inlet:

ss-AXIMUM v WC ss -INIMUM Mv WC

ss -ANIFOLD GAS PRESSURE vPWC

 )NSTALLT LOCKUP GASAPRESSURE REGULATORLIN SUPPLY

line IF INLETLPRESSURE EXCEEDS v WC Adjust for

vWC MAXIMUM

Propane Gas:

 #ONTACTTGASCSUPPLIER TO SIZE PIPES ITANKS ANDO lockup gas pressure regulator.

2.Adjust propane supply regulator provided by gas

SUPPLIER FOR v WCOMAXIMUMPRESSURE

3.Inlet pressure required at gas valve inlet:

ss-AXIMUM v WC ss -INIMUM MvMWC

ss -ANIFOLD GAS PRESSURE v WC

&IGURE R Gas supply piping

26

Part Number 550-101-009/0107

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Weil-McLain CGA25SPDN manual Gas piping, Connect gas supply piping to boiler, Natural Gas, Propane Gas
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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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