MAKING THE GAS CONNECTION

DANGER: Only carry out work on gas conduits and fittings if you are licensed for such work.

-Determine proper size gas pipe for the installation using Table 3 and Table 4. Do not forget the pipe fitting losses and observe proper size of the fittings.

-Install the furnished 3/4” female gas cock on the gas connection (3/4” male on the boiler) (Fig. 13).

-Connect the gas pipe to the gas cock so that it is free from any strain.

CAUTION: The boiler and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psi (3.5 kPa).

Fig. 13

 

 

A

A- Manual main gas shutoff

B

C

valve (supplied)

 

B- Coupling (field supplied)

 

C- To gas supply

 

NOTICE: When installing the gas supply connection, it must comply with local regulations or, if such regulations do not exist, with the National Fuel Gas Code, ANSI Z 223.1.

In Canada, the gas supply connection must comply with local regulations or, if such regulations do not exist, with CAN/CSA B149, Natural Gas and Propane Installation Code. A sediment trap must be provided upstream of the gas controls.

Gas Pipe Capacity for different pipe sizes

Tab. 3

Length of

 

Gas Volume Capacity

 

pipe (feet)

 

 

(ft3/h)*

 

 

 

3/4”

 

1”

 

1 1/4”

1 1/2”

10

278

 

520

 

1,060

1,600

20

190

 

350

 

730

1,100

30

152

 

285

 

590

890

40

130

 

245

 

500

760

50

115

 

215

 

440

670

75

93

 

175

 

360

545

100

79

 

160

 

305

480

150

64

 

120

 

250

380

*Maximum pipe capacity in ft3/hr, based on a specific gravity of 60 (42 mbar) and a inlet gas pressure of 14 inches W.C. (35 mbar) or less and a pressure drop of 0.3 inches W.C. (20 mbar)

Equivalent length for pipe fittings in feet

Tab. 4

Steel pipe

Equivalent length for Pipe Fittings in feet

diameter

 

 

 

 

 

Type of pipe fitting

 

in inches

90° Elbow

Tee

Gate valve

 

Gas cocks

 

 

 

(flow thru

 

 

 

 

 

 

branch)

 

 

 

 

 

 

Equivalent

length in feet

 

 

3/4

 

2.1

4.1

0.5

 

1.25

1

 

2.6

5.2

0.6

 

1.60

1 1/4

 

3.5

6.9

0.8

 

2.15

1 1/2

 

4.0

8.0

0.9

 

2.50

NOTICE: The boiler must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi (3.5 kPa).

Open

position

Fig. 14

Closed position

22

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Raypak 85, 120 manual Making the GAS Connection, Gas Pipe Capacity for different pipe sizes, Branch Equivalent
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120, 85 specifications

The Raypak 120,85 is a prominent model in the realm of pool and spa heating solutions, designed to deliver unmatched efficiency and performance. Renowned for its robust features and innovative technologies, the Raypak 120,85 stands out as a reliable choice for homeowners seeking to maintain the perfect water temperature in their pools and spas.

One of the primary characteristics of the Raypak 120,85 is its impressive heating capacity. With a total output of 120,000 BTUs, this heater quickly and efficiently warms up water, ensuring that users can enjoy comfortable swimming conditions regardless of the outdoor temperature. The 85 indicates its ability to deliver consistent performance even in cooler climates, making it an adaptable option for various geographical locations.

The Raypak 120,85 is equipped with a state-of-the-art, copper fin tube heat exchanger, which provides superior heat transfer efficiency. This technology enhances the heater's ability to warm water rapidly while maintaining energy efficiency. Additionally, the copper material is known for its durability and resistance to corrosion, ensuring a long lifespan for the heat exchanger.

Another key feature of the Raypak 120,85 is its electronic ignition system. This innovation eliminates the need for a standing pilot light, which not only saves energy but also enhances safety by reducing the risk of gas leaks associated with traditional ignition systems. The electronic ignition provides precise control, ensuring a reliable start each time.

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