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A plugged tap 1/8" N.P.T. minimum, accessible for a pressure gauge connection, must be installed in the
main gas supply line immediately upstream of the dryers.
IMPORTANT: Pipe joint compounds that resist the action of natural and propane gases must be
used.
IMPORTANT: Test ALL connections for leaks by brushing on a soapy water solution (liquid
detergent works well).
WARNING: NEVER TEST FOR GAS LEAKS WITH A FLAME!!!
IMPORTANT: The dryer and its individual shutoff 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 psig (3.5 kPa).
NOTE: The dryer must be isolated from the gas supply piping system by closing its individual manual
shutoff valve during any pressure testing of the gas supply piping system at test pressures equal
to or less than 1/2 psig (3.5 kPa).
30
American Dryer Corp.
113202 - 27
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