Alliance Laundry Systems D677I User Manual

Page of 122
Installation
33
510969
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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, 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 feet 
(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 inch 
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). 
NOTE: When connecting to a gas line, an equipment 
shutoff valve must be installed within 6' (1.8 m) of 
the dryer. An 1/8" N.P.T. pipe plug must be 
installed as shown. Refer to Figure 24
.
Natural Gas Altitude Adjustments
Altitude
Orifice Size
Part
Number
feet
m
#
inches
mm
2,000
610
41
0.0960
2.44
503776
3,000
915
42
0.0935
2.37
503777
5,500
1,680
43
0.0890
2.26
503778
7,000
2,135
44
0.0860
2.18
58719
9,000
2,745
45
0.0820
2.08
503779
10,500
3,200
46
0.0810
2.06
503780
Table 1 
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