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www.amdry.com
19
2. Gas Piping
The gas connection to the dryer is made into the 2-1/2” F.P.T. shutoff valve located in the bottom front
corner of the lower heat console.
The gas pressure supplied to the dryer
must be
between 7 inches (17.41 mb) and 13 inches (32.34 mb)
water column (W.C.) for natural gas or 10.5 inches (26.12 mb) water column (W.C.) for liquid propane
(L.P.) gas.
If the facilities gas pressure is higher than these values, an external pressure regulator
must be
installed
prior to the dryer to reduce the gas pressure to within the appropriate range.
The dryer
must be
connected to either natural or L.P. gas indicated on the dryer data label, which is
located in the right hand side of the main electrical enclosure. If your gas supply does not match the type
of gas for which the dryer was built, contact your reseller or the
ADC
factory.
a. The gas dryer installation
must meet
the American National Standard...National Fuel Gas Code ANSI
Z223.1-LATEST EDITION, or in Canada, the Canadian Installation Codes CAN/CGA-B149.1 M91
(Natural Gas) or CAN/CGA-B149.2-M91 (L.P. Gas) or LATEST EDITION, as well as local codes
and ordinances and
must be
done by a qualified professional.
b. 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).
Pipe joint compounds that resist the action of natural and L.P. gas
must be
used.
Test
ALL
pipe connections for leaks by brushing on a soapy water solution.
WARNING: NEVER
TEST
FOR
LEAKS
WITH
A
FLAME!!!
NOTE:
Venting
must be
controlled in accordance with government and plumbing codes and
regulations to avoid the danger of escaping gas should there be internal leakage. Vent pipes
must be
open and the open end protected against entry of foreign matter, including water.
