ALLIANCE 120 Series Installation, Operation & Maintenance Manual page 39

An in-line pressure regulator may be required if the
line pressure exceeds 26.1 mbar (10.5 water column
inches) with all gas appliances running.
LIQUID PETROLEUM GAS (L.P.) pressures with all
gas appliances running (tumble dryers, water heaters,
space heaters, furnace, etc.):
Maximum gas pressure – 32.3 mbar (13 water
column inches)
Recommended gas pressure – 27.4 mbar (11 water
column inches)
Minimum gas pressure – 24.9 mbar (10 water
column inches)
For converting models from Natural Gas to L.P. Gas:
120 Series Models - M4973P3
170 Series Models - M4974P3
200 Series Models - M4975P3
Turn on gas and check all pipe connections (internal
and external) for gas leaks with a non-corrosive leak
detection fluid. Purge air in gas service line by
operating the tumble dryers in the drying mode. If
burner does not light and unit goes into lockout, open
and close the door and restart. Repeat these steps until
burner ignites. Use pipe compound, resistant to
actions of L.P. gas, on all pipe threads.
WARNING
Check all pipe connections, internal and
external, for gas leaks using a non-
corrosive leak detection fluid. To reduce
the risk of explosion or fire, DO NOT USE
AN OPEN FLAME TO CHECK FOR GAS
LEAKS! Gas connections should be
checked twice a year for leakage.
70458101 (EN)
W635
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
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1 Gas Line to Tumble Dryer Controls
2 Gas "T" Fitting
3 Gas Supply Piping System
4 152 mm (6 in.) Minimum Gas Pipe
5 Gas Pipe Cap
6 Sediment Trap
Figure 15
Gas Requirements
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