2.Technical Gas Data a. Gas Specifications
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| Natural |
| Liquid Propane (L.P.) | |||
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Manifold Pressure* | 3.5 inches W.C. |
| 8.7 mb | 10.5 inches W.C. |
| 26.1 mb |
Inline Pressure | 6.0 - 12.0 inches W.C. |
| 14.92 - 29.9 mb | 10.5 inches W.C. |
| 26.1 mb |
Orifice Size** | #15 |
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| #35 | ||
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Shaded areas are stated in metric equivalents.
*Measured at gas valve pressure tap when the gas valve is on.
**For elevations up to 2,000 feet (610 meters).
W.C. = Water Column in inches.
Gas Inlet Size | 3/4" N.P.T. | |
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BTU/hr Input (each basket [tumbler]) | 95,000 | 23,940 kcal/hr. |
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BTU/hr (total for both baskets [tumblers]) | 190,000 | 47,880 kcal/hr. |
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N.P.T. = National Pipe Thread.
b.Natural Gas
Regulation is controlled by each 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 water column (29.9 mb) pressure.
c.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 (26.1 mb). There is no regulator or regulation provided in a 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.
3.Piping Connections
ALL components/materials must conform to National Fuel Gas Code Specifications ANSI
It is important that the gas pressure regulators meet applicable pressure requirements and that gas meters be rated for the total amount of ALL the appliance BTUs being supplied.
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