American Dryer Corp. AD-235ED - Manual (Page 26)

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2. Technical Gas Data
a. Gas Specifications
b. Gas Connections:
Inlet connection -------------- 3/4-inch N.P.T.
Inlet supply size ------------- 3/4-inch N.P.T. (minimum)
Btu/hr input (per dryer) ----- 144,000 (36,288 kcal/hr)
Btu/hr input (per pocket) --- 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
water column (W.C.) - 29.9 mb - pressure.
2) Liquid Propane (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 inches water column (26.1 mb.) There is no regulator
or regulation provided in a 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.
T
YPE OF
G
AS
Natural Liquid Propane
Manifold Pressure* 3.5 inches W.C. 8.7 mb 10.5 inches W.C. 26.1 mb
Inline Pressure 6.0 - 12.0 inches W.C. 14.92 - 29.9 mb 10.5 inches W.C. 26.1 mb
Shaded areas are stated in metric equivalents
* Measured at gas valve pressure tap when the gas valve in on.
T
YPE OF
G
AS Liquid Propane
(L.P.)
Conversion Kit
Part Number
ADC
MODEL
NUMBER
BTU
Per Hour
Rating
kcal/hr
Rating **
Natural Liquid Propane (L.P.)
Qty.** D.M.S.*
Part
Number
Qty.** D.M.S.*
Part
Number
ADG-230D
ADG-235ED
72,000 18,144 1 #20 140828 1 #41 140811 874059
Shaded area is stated in metric equivalent
* D.M.S. (Drill Material Size) equivalents are as follows:
** Each pocket/tumbler
Natural Gas ............... #20 = .1610" (4.089 mm)
Liquid Propane Gas .. #41 = .0960" (2.438 mm)