American Dryer Corp. ML-75HS - Manual (Page 32)

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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) --- 200,000
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 and a maximum of 12.0 inches water
column 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. 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.
* D.M.S. (Drill Material Size of equivalents are as follows:)
Natural Gas ................... # 29 = .1360"
Liquid Propane Gas ...... # 47 = .0785"
Type of Gas
Natural Liquid Propane
Manifold Pressure 3.5 inches W.C. 10.5 inches W.C.
Inline Pressure 6.0 - 12.0 inches W.C. 10.5 inches W.C.
Type of Gas
L.P.
Conversion
Kit Part
Number
Natural Liquid Propane
Model
Number
BTU Per
Hour
Rating
Qty. D.M.S.*
Part
Number
Qty. D.M.S.*
Part
Number
MLG-75 200,000 4 #29 140820 4 #47 140805 881231