20
2. Technical Gas Data
a. Gas Specifications
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” N.P.T.
Inlet supply size ------------- 1/2” Diameter Pipe (minimum)
Heat input (per dryer) ------ 150,000 Btu/hr (37,800 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 pressure
must be
regulated at the source
(L.P. tank) or an external regulator
must be
added to each dryer.
Shaded area is stated in metric equivalent
* Drill Measurement Size (D.M.S.) equivalents are as follows:
Natural Gas ........................ #29 = 0.1360” (3.4540 mm).
Liquid Propane Gas ........... #46 = 0.810” (2.0574 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 inches W.C.
14.92 - 29.9 mb
11.0 inches W.C.
27.4 mb
TYPE OF GAS
Liquid
Propane
Conversion Kit
Part Number
Btu/hr
Rating
kcal/hr
Rating
Natural
Liquid Propane
Qty.
D.M.S.*
Part No. Qty.
D.M.S.*
Part No.
150,000
37,800
3
#29
140820
3
#46
140806
883325
