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TYPE OF GAS
NATURAL LIQUID PROPANE
Manifold Pressure* 3.5 inches W.C. 8.7 mb 10.5 inches W.C. 26.1 mb
In-Line Pressure 6.0 - 12.0 inches W.C. 14.92 - 29.9 mb 11.0 inches W.C. 27.4 mb
Shaded areas are stated in metric equivalents
2. Technical Gas Data
a. Gas Specifications
*Measured at the outlet side of gas valve pressure tap when gas valve is on.
b. Gas Connections
Inlet connection --------------1/2” N.P.T.
Inlet supply size --------------1/2” N.P.T. (minimum)
Btu/hr input (per dryer) -----72,000 (18,144 kcal/hr)
1) 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 inches (14.92 mb) and a maximum of 12.0 inches
(29.9 mb) water column (W.C.) pressure.
2) Liquid Propane (L.P.) Gas
Dryers made for use with L.P. 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 inches (26.1 mb) water column. 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.
* Drill Measurement Size (D.M.S.) equivalents are as follows:
Natural Gas ..................... #33 = 0.1130” (2.8702 mm).
Liquid Propane Gas ....... #51 = 0.0670” (1.7018 mm).
TYPE OF GAS
L.P.
Conversion
Kit
Part Number
ADC
MODEL
NUMBER
BTU
Per Hour
Rating
kcal/hr
Rating
Natural Liquid Propane
Qty. D.M.S.*
Part
Number
Qty. D.M.S.*
Part
Number
ADG-285D 72,000
18,144
2 #33 140855 2 #51 140801 874054
Shaded area is stated in metric equivalent