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Installation
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, 1,000 Btu/ft
3
(37.3 MJ/m
3
), service must be supplied at 6.5 ± 1.5 inch water column pressure.
For proper operation at altitudes above 2,000 ft.
(610 m) the natural gas valve spud orifice size must be reduced to ensure complete combustion. Refer to
Table 1.
L.P. (Liquefied Petroleum) Gas, 2,500 Btu/ft
3
(93.1 MJ/m
3
), service must be supplied at 10 ± 1.5 in. water column pressure.
NOTE: DO NOT connect the dryer to L.P. Gas
Service without converting the gas valve. A 458P3
L.P. Gas Conversion Kit must be installed by the
Manufacturer’s Authorized Dealers, Distributors, or local service personnel.
NOTE: The dryer 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 psi (3.45 kPa).
The dryer 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 test pressures equal to or less than 1/2 psi
(3.45 kPa).
NOTE: When connecting to a gas line, an equipment shutoff valve must be installed within 6 ft. (1.8 m) of the dryer. An 1/8 in. N.P.T. pipe plug must be installed as shown. Refer to Figure 38.
WARNING
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
Natural Gas Altitude Adjustments
Altitude feet m #
2,000
3,000
610
915
41
42
5,500 1,680 43
7,000 2,135 44
9,000 2,745 45
10,500 3,200 46
Orifice Size inches mm
0.0960
0.0935
0.0890
0.0860
0.0820
0.0810
2.44
2.37
2.26
2.18
2.08
2.06
Table 1
Part
Number
503776
503777
503778
58719
503779
503780
800937 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
27
Installation
1
2
5
4
3
1
2
3
New Stainless Steel Flexible Connector –
Use only if allowed by local codes
(Use Design A.G.A. Certified Connector)
1/8" N.P.T. Pipe Plug
(For checking inlet gas pressure)
Equipment Shut-Off Valve – Installed within
6' (1.8 m) of dryer
Figure 38
4
5
Black Iron Pipe
Shorter than 20' (6.1 m) – Use 3/8" pipe
Longer than 20' (6.1 m) – Use 1/2" pipe
3/8" N.P.T. Gas Connection
D434I
28 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
800937
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