14
American Dryer Corp.
113279 - 9
Gas Specifications for Non-CE and Non-AGA Approved Dryers
**
Gas
Type
Nominal
Heating Value
Supply
Pressure
Gross
Heat Input
Orifice Size
Orifice
(Injector)
Quantity
Burner
Pressure
B tu /ft
3
in WC
Btu/hr
kW
DMS
mm
in WC
Natural
1,000
7.0-13.0
26,000
7.6
40
2.489
1
3.0
*
Propane
2,500
11.0-13.0
26,000
7.6
53
1.511
1
10.5
Piping / Connections
Inlet connection is 3/8” N.P.T.
CE and Australian dryer connections will be B.S.P.T., all others
will be N.P.T.
There should be a minimum 6-inch (15.24 cm) clearance
between the back guard and the first bend in the gas piping
for ease of servicing. It is recommended that a gas shutoff
valve be provided to the gas supply line of each dryer for
ease in servicing.
The size of the main gas supply line (header) will vary
depending on the distance this line travels from the gas meter
or, in the case of propane gas, the supply tank, other gas-
operated appliances on the same line, etc. Specific
information regarding supply line size should be determined
by the gas supplier.
Heat Input / Gas Consumption / Orifice (Injector) Data
(For Non-CE [European] and Non-AGA [Australia] Models Only)
Shaded areas are stated in metric equivalents
*
Gas valve’s internal regulator disabled.
** Consult factory for elevations over 2,000 feet (610 meters) for correct orifice size.
NOTE:
Undersized gas supply piping can create a low or
inconsistent pressure, which will result in erratic operation
of the burner ignition system.
Consistent gas pressure is essential at all gas connections.
It is recommended that a 3/4-inch (19.05 mm) pipe gas loop
be installed in the supply line servicing a bank of dryers. An
in-line pressure regulator must be installed in the gas supply
line (header) if the (natural) gas pressure exceeds 13.0 in
WC (32.34 mb) pressure.
A plugged tap 1/8” N.P.T. minimum, accessible for a pressure
gauge connection, must be installed in the main gas supply
line immediately upstream of the dryers.
IMPORTANT:
Pipe joint compounds that resist the action
of natural, propane, and butane gases must be used.
Test all connections for leaks by brushing on a soapy
water solution (liquid detergent works well).
!
WARNING
Never test for leaks with a flame!!!
Converting from One Family
of Gas to Another _____________________
!
WARNING
(CE Dryers)
This appliance must only be operated with the gas
type indicated on the dryer’s data plate. If the
appliance is converted (gas type changed), a data
plate amendment must be obtained from American
Dryer Corporation (dryer’s serial number is required
to purchase a conversion kit).
IMPORTANT:
Any burner changes or conversions must be
made by a qualified professional.
The dryers manufactured for Belgium, Luxemburg, Greece,
Estonia, Slovak Republic, Iceland, Malta, Poland and
Cyprus cannot be converted from one family of gas to
another.
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