28
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 (50,400 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 pressure (W.C.).
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 (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.

T

YPE OF

G

AS
L.P.
Conversion
Kit
Part Number
MODEL
NUMBER
BTU
Per Hour
Rating
kcal/hr
Rating
Natural Liquid Propane
Qty. D.M.S.* Part
Number Qty. D.M.S.* Part
Number
MLG-75 200,000 50,400 4
#
29 140820 4 #47 140805 881231
Shaded area is stated in me tric e qu iva len t
* Drill Material Size (D.M.S.) equivalents are as follows:
Natural Gas ............... #29 = 0.1360” (3.4544 mm).
Liquid Propane Gas .. #47 = 0.0785” (1.9939 mm).
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 inch es W.C . 14.92 - 29.9 mb 11.0 inches W.C. 27.4 mb
Shaded areas are stated in metric equivalents
Measured at outlet side of gas valve pressure tap when gas valve is on.