2. Technical Gas Data

a. Gas Specifications

 

Type of Gas

 

 

 

 

Natural Gas

Liquid Propane Gas

 

 

 

Manifold Pressure*

3.5 - 4.0 inches W.C.

10.5 - 11.0 inches W.C.

 

 

 

Inline Pressure

6.0 - 12.0 inches W.C.

11.0 inches W.C.

 

 

 

*Measured at the gas valve pressure tap when the gas valve is on.

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) - 204,000

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 (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 11.0 inches water column (W.C.). 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.

 

 

 

 

 

Type of Gas

 

L.P.

 

 

 

 

 

 

 

 

 

Conversion

 

BTU

 

Natural

 

 

Liquid Propane

MODEL

 

 

 

Kit

Per Hour

 

 

 

 

 

 

 

 

 

 

Part

 

 

Part

NUMBER

Qty.

D.M.S.*

 

Qty.

D.M.S.*

Part Number

Rating

 

Number

Number

 

 

 

 

 

 

 

MLG-78

204,000

4

#29

 

140820

4

#47

140805

881655

 

 

 

 

 

 

 

 

 

 

*D.M.S. (Drill Material Size) equivalents are as follows:

Natural Gas ................ #29 = .1360" Liquid Propane Gas ... #47 = .0785"

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American Dryer Corp ML-78 installation manual Type of Gas