ADC AD-30 - Page 29

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TYPE OF GAS
Propane
Conversion
Kit
Part
Number
ADC Model
Number
Btu/hr
Rating
kcal/hr
Rating
Natural Propane
Qty. D.M.S.* Part No. Qty. D.M.S.* Part No.
ADG-30D
MLG-30D
90,000
22,680
2 #30 140819 2 #46 140806 874050
ADG-30DH
MLG-30DH
80,000
20,160
2 1/8 140843 2 #49 140803 874049
TYPE OF GAS
NATURAL 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
10.5 - 11.0 inches W.C.
26.1 mb - 27.4 mb
2. Technical Gas Data
a. Gas Specifications
For Australia, refer to data plate.
Shaded areas are stated in metric equivalent
* Drill Measurement Size (D.M.S.) equivalents are as follows:
Natural Gas ........................ #30 = 0.1285” (3.2639 mm).
1/8 = 0.1250” (3.175 mm).
Propane Gas ...................... #46 = 0.0810” (2.0574 mm).
#49 = 0.0730” (1.8542 mm).
Shaded areas are stated in metric equivalents
* Measured at outlet side of gas valve pressure tap when gas valve is on.
b. Gas Connections
Inlet connection -------------1/2-inch N.P.T.
Inlet supply size -------------1/2-inch N.P.T. (minimum)
Btu/hr input (per dryer) ----90,000 (22,680 kcal/hr) ADG-30D/MLG-30D
80,000 (20,160 kcal/hr) ADG-30DH/MLG-30DH
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) Propane Gas
Dryers made for use with propane 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 (26.1 mb) water column (W.C.).
There is no regulator or regulation provided in a propane dryer. The water column pressure must
be regulated at the source (propane tank) or an external regulator must be added to each dryer.