2.Technical Gas Data a. Gas Specifications

 

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.

*Measured at outlet side of gas valve pressure tap when gas valve is on.

b.Gas Connections:

Inlet connection ------------ 3/4” N.P.T.

Inlet supply size ------------ 3/4” 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.

 

 

 

TYPE OF GAS

 

Liquid

 

 

 

 

 

 

 

 

 

Propane

 

 

 

Natural

 

 

Liquid Propane

Btu/hr

kcal/hr

 

 

 

Conversion Kit

 

 

 

 

 

 

 

Rating

Rating

Qty.

D.M.S.*

 

Part No.

Qty.

D.M.S.*

Part No.

Part Number

 

 

 

 

 

 

 

 

 

 

200,000

50,400

4

#29

 

140820

4

#47

140805

881231

 

 

 

 

 

 

 

 

 

 

Shaded area is stated in metric equivalent.

*Drill Measurement 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).

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American Dryer Corp ML-75V installation manual Type of GAS