Specifications

Installation
801509
24
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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, 37.3 MJ/m
3
(1000 Btu/ft
3
), service must
be supplied at 6.5 ± 1.5 inch water column pressure.
For proper operation at altitudes above 915 m
(3000 feet) the natural gas valve spud orifice size must
be reduced to ensure complete combustion. Refer to
Table 1.
L.P. (Liquefied Petroleum) Gas, 93.1 MJ/m
3
(2500 Btu/ft
3
), service must be supplied at
10 ± 1.5 inch water column pressure.
For proper operation at altitudes above 915 m
(3000 feet) the L.P. gas valve spud orifice size must be
reduced to ensure complete combustion. Refer to
Table 2.
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 3.45 kPa (0.5 psi).
NOTE: When connecting to a gas line, an equipment
shutoff valve must be installed within 1.8 m (6 feet)
of the dryer. A 0.125 inch NPT pipe plug must be
installed as shown. Refer to Figure 24.
Natural Gas Altitude Adjustments
Altitude Orifice Size
Part
Number
mfeet#mminches
915 3,000 43 2.26 0.0890 503778
1,830 6,000 44 2.18 0.0860 58719
2,440 8,000 45 2.08 0.0820 503779
2,740 9,000 46 2.06 0.0810 503780
3,050 10,000 47 1.99 0.0785 503781
Tabl e 1
L.P. Gas Altitude Adjustments
Altitude Orifice Size
Part
Number
mfeet#mminches
915 3,000 55 1.32 0.0520 58755
2,440 8,000 56 1.18 0.0465 503786
Tabl e 2
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