25
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 -------- 204,000 (51,408 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 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.
Natural Gas ................... #23 = 0.1540” (3.9116 mm).
Liquid Propane Gas ...... #42 = 0.0935” (2.3749 mm).
T
YP E 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-78II
204,000
51,408
3
#23
140856
3
#42
140810
881655
Shaded area is stated in metric equivalent
* Drill Material Size (D.M.S.) equivalents are as follows:
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
