Manuals / GSW / Household Appliance / Water Heater

GSW G65 Gas Connections Important Gas Supply, On The Rating Plate? See Also Warning On Page, Rate

Models: G65

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GAS CONNECTIONS

GAS CONNECTIONS

IMPORTANT: GAS SUPPLY

HAVE YOU CHECKED THE GAS SUPPLIED AND COMPARED IT WITH THE GAS MARKED

ON THE RATING PLATE? SEE ALSO WARNING ON PAGE 1.

The installation of this appliance must conform to applicable local codes and local authorities having jurisdictions.

Install the gas piping as indicated in Figure 2. Use only new pipe and fittings with sound, clean-cut pipe thread. Sealing compound must conform to the applicable code for pipe sealing compound approved for use with natural gas and propane. It is important to have a readily accessible manu- al shut-off valve in the gas line supplying the heater, close to the heater. A drip leg must be installed ahead of the gas control valve to help trap sediments and foreign material.

A ground-joint union must be installed ahead of the gas valve to permit easy removal of the unit.

Pipe sizing and the number of fittings used must conform to the National Fuel Gas Code, Natural Gas Installation Code B.149.1 or Propane Gas Installation Code B149.2.

The appliance and its gas connection must be leak tested before placing the appliance in operation.

All leak testing must be done with soapy water solution.

Table I

Gas Supply Line Sizes (Inches)

(Based on pressure drop of 0.3 inches water column) Correct Gas Pipe Size for Heaters Operating on:

NEVER USE A MATCH OR OPEN FLAME TO TEST FOR GAS LEAKS.

A FIRE OR EXPLOSION COULD RESULT.

The maximum inlet gas pressure to the appliance must not exceed the gas pressure marked on the rating plate: 10.5” W.C. for natural gas and 13” W.C. for propane gas.

The minimum supply pressure for the purpose of input adjustment is 1” above manifold pressure. The appliance and its individual shut-off 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 psig (3.5 kPa)

The appliance must be isolated from the gas supply piping system by closing its individual manual shut-off valve during any pressure testing of the gas supply piping system at least pressures equal to or, less then 1/2 psig(3.5kPA)

The input rating of the appliance should be checked against the actual input and the manifold pressure adjusted to give the correct input. In no case should the input exceed the rated input. Overfiring and damage to the appliance will result. High altitude installations require an input check since overfiring is more likely.

RATE

 

 

NATURAL GAS

 

 

 

 

Specific gravity 0.6

 

 

BTU

 

DISTANCE TO METER IN FEET

 

INPUT

 

 

 

 

 

 

 

30

60

90

120

150

180

210

 

 

 

 

 

 

 

 

58,000

1/2

3/4

3/4

3/4

1

1

1

95,000

3/4

1

1

1

1-1/4

1-1/4

1-1/4

150,000

3/4

1

1

1-1/4

1-1/4

1-1/4

1-1/4

200,000

1

1-1/4

1-1/4

1-1/4

1-1/4

1-1/4

1-1/4

250,000

1

1-1/4

1-1/4

1-1/4

1-1/4

1-1/2

1-1/2

300,000

1-1/4

1-1/4

1-1/4

1-1/2

1-1/2

1-1/2

1-1/2

400,000

1-1/4

1-1/2

1-1/2

1-1/2

2

2

2

500,000

1-1/4

1-1/2

2

2

2

2

2

600,000

1-1/2

2

2

2

2

2

2

750,000

1-1/2

2

2

2

3

3

3

PROPANE

Specific gravity 1.53

DISTANCE TO METER IN FEET

30

60

90

120

150

180

210

 

 

 

 

 

 

 

1/2

1/2

1/2

1/2

1/2

1/2

1/2

3/4

3/4

3/4

1

1

1

1

3/4

3/4

1

1

1

1

1-1/4

3/4

1

1

1-1/4

1-1/4

1-1/4 1-1/4

1

1

1

1-1/4

1-1/4

1-1/4

1-1/4

11-1/4 1-1/4 1-1/4 1-1/4 1-1/4 1-1/4 1-1/4 1-1/4 1-1/4 1-1/4 1-1/2 1-1/2 1-1/2 1-1/4 1-1/4 1-1/4 1-1/2 1-1/2 1-1/2 1-1/2

1-1/4

1-1/2

1-1/2

1-1/2

2

2

2

1-1/4

1-1/2

2

2

2

2

2

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GSW G65 Gas Connections Important Gas Supply, On The Rating Plate? See Also Warning On Page, Input, Propane, Rate
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