ADC AD-333, Руководство по установке, Страница: 13 / 18

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TYPE OF GAS (PER POCKET)
Btu/hr
Rating
kcal/hr
Rating
Natural Liquid Propane
Qty. D.M.S. * Part No. Qty. D.M.S. * Part No.
72,000 18,143 1 #20 140908 1 #41 140909
Liquid Propane Conversion Kit Part Number 884399
Natural Gas
Regulation is controlled by the dryer’s gas valve’s internal
regulator. Incoming supply pressure must be consistent
between a minimum of 6.0 in WC (14.92 mb) and a maximum
of 12.0 in WC (29.9 mb) pressure.
L.P. Gas
Dryers made for use with L.P. gas have the gas valve’s
internal pressure regulator blocked open so that the gas
pressure must be regulated upstream of the dryer. The
pressure measured at each gas valve pressure tap must
be a consistent 10.5 in WC (26.1 mb). There is no regulator
or regulation provided in an L.P. dryer. The water column
pressure must be regulated at the source (L.P. tank) or an
external regulator must be added to each dryer.
TYPICAL GAS CONNECTIONS
Piping Connections
All components/materials must conform to National Fuel
Gas Code Specifications ANSI Z223.1-LATEST EDITION, or
in Canada, CAN/CGA-B149.1-M91 (Natural Gas) or CAN/
CGA-B149.2-M91 (L.P. Gas) or LATEST EDITION (for General
Installation and Gas Plumbing), as well as local codes and
ordinances and must be done by a qualified professional.
It is important that gas pressure regulators meet applicable
pressure requirements, and that gas meters be rated for
the total amount of all the appliance Btu being supplied.
The dryer is provided with two 1/2” N.P.T. inlet pipe
connections extending out the rear of the dryer (refer to page
7).
If a separate feed is provided for each tumbler from the
main supply line (header), then a 1/2” (12.7 mm) line
connection is sufficient. However, if the top and bottom
tumbler connections are connected together, the supply
from the header must be increased to 3/4-inch (19.05 mm).
It is recommended that a gas shutoff valve be provided to
the gas supply line of each dryer for ease in servicing.
Shaded area is stated in metric equivalent
* D.M.S. equivalents are as follows:
Natural Gas ............... #20 = 0.161” (4.089 mm).
L.P. Gas ..................... #41 = 0.096” (2.438 mm).