Alliance Laundry Systems SWD439C Specifications download pdf (Page 24)

Installation

801546

Gas Requirements

Gas Dryers

NOTE: The gas service to a gas dryer must conform

with the local codes and ordinances or, in the

absence of local codes and ordinances, with the

latest edition of the National Fuel Gas Code ANSI

Z223.1/NFPA 54 or the CAN/CGA-B149, National

Gas Installation Code.

Natural Gas service, 37.3 MJ/m

(1000 Btu/ft

), must

be supplied at 6.5 ± 1.5 inch water column pressure.

For proper operation at altitudes above 760 meters

(2500 feet) the natural gas valve spud orifice size must

be reduced to ensure complete combustion. Refer to

Table 1.

L.P. (Liquefied Petroleum) Gas service, 93.1 MJ/m

(2500 Btu/ft

), must be supplied at 10 ± 1.5 inch water

column pressure.

NOTE: DO NOT connect the dryer to L.P. Gas

Service without converting the gas valve. An LPK1

Sales Accessory (L.P. Gas Conversion Kit 401P3)

must be installed.

NOTE: The dryer and its appliance main gas valve

must be disconnected from the gas supply piping

system during any pressure testing of that system at

test pressures in excess of 3.45 kPa (1/2 psi).

The dryer must be isolated from the gas supply piping

system by closing the equipment shut-off valve during

any pressure testing of the gas supply piping system at

test pressures equal to or less than 3.45 kPa (1/2 psi).

NOTE: When connecting to a gas line, an equipment

shut-off valve must be installed within 1.8 meters

(6 feet) of the dryer. A 1/8 inch NPT pipe plug must

be installed as shown. Refer to Figure 23.

Table 1

Natural Gas Altitude Adjustments

Altitude Orifice Size

Part No.

m feet # mm inches

760 2500 45 2.08 0.0820 503779

1370 4500 46 2.06 0.0810 503780

1830 6000 47 1.99 0.0785 503781

2290 7500 48 1.93 0.0760 503782

2900 9500 49 1.85 0.0730 503783

3355 11,000 50 1.78 0.0700 503784

To reduce the risk of gas leaks, fire or

explosion:

• The dryer must be connected to the type

of gas as shown on nameplate located in

the door recess.

• Use a new flexible stainless steel

connector.

• Use pipe joint compound insoluble in L.P.

(Liquefied Petroleum) Gas, or Teflon tape,

on all pipe threads.

• Purge air and sediment from gas supply

line before connecting it to the dryer.

Before tightening the connection, purge

remaining air from gas line to dryer until

odor of gas is detected. This step is

required to prevent gas valve

contamination.

• Do not use an open flame to check for

gas leaks. Use a non-corrosive leak

detection fluid.

• Any disassembly requiring the use of

tools must be performed by a suitably

qualified service person.

W316

WARNING

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Alliance Laundry Systems SWD439C Specifications Page 24

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