B&C Technologies DP-250 Industrial - Manual (Page 28)

INSTALLATION PROCEDURES
3-14
1. Gas Supply
The gas dryer installation must meet the American National Standard: National Fuel Gas
Code Z223.1 – LATEST EDITION, or in Canada, the Canadian Installation Codes CAN/CGA –
B149.1 – M91 (Natural Gas) or CAN/CGA – B149.2 – M91 (L.P. Gas) or LATEST EDITION, as
well as local codes and ordinances and must be done by a qualified professional
NOTE: Undersized gas piping will result in ignition problems, slow drying, increased use of
energy, and can create a safety hazard.
The dryer must be connected to the type of heat / gas indicated on the dryer data label
affixed to the back of the dryer at the upper right hand comer. If this information does not agree
with the type of gas available, DO NOT operates the dryer. Contact the distributor who sold the
dryer or the factory.
IMPORTANT: Any burner changes or conversions must be made by a qualified professional.
The input ratings shown on the dryer data label are for elevations of up to 2,000 feet, unless
elevation requirements of over 2,000 feet were specified at the time the dryer order was placed with
the factory. The adjustment or conversion of dryers in the field for elevations over 2,000 feet are
made by changing each burner orifice. If this conversion is necessary, contact the distributor who
sold the dryer or contact the Dryer factory.
2. Technical Gas Data
Table 3-2 Technical Gas Data
Type of Gas
Description
Natural (NG) Liquid Propane (LPG)
Manifold Pressure 3.5 - 4.0 inches H
2
O. 10.5 - 11.0 inches H
2
O.
Inline Pressure 4.5 - 14.0 inches H
2
O. 12.0 - 14.0 inches H
2
O.
Drill Nozzle Size (Hole) 4 mm. 3 mm.
Inlet supply size (Minimum) 1-1/2 inches 1-1/2 inches
Inlet connection 1 inches 1 inches
1) Natural Gas
Regulation is controlled by the dryer gas valve’s internal regulator. Incoming supply
pressure must be consistent between a minimum of 4.5 inches and a maximum of 14.0 inches water
column 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. 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.