20 American Dryer Corp. 113403-17
Gas Information ______________________
It is your responsibility to have all plumbing connections,
materials, and workmanship conform to local and state
regulations or codes of the country of destination. In the
absence of such codes, all plumbing connections, materials,
and workmanship must conform to the applicable local
requirements. In the USA this is the National Fuel Gas Code
ANSI Z223.1-LATEST EDITION, or in Canada, the Canadian
Installation Codes CAN/CGA-B149.1-M91 (Natural Gas) or
CAN/CGAB149.2-M91 (L.P. Gas) or LATEST EDITION.
Electrically Heated Models Only
The electrical input connections are made at the rear service
box located at the right upper section of the dryer. The ground
connection is made to a copper lug also provided in this
area. To gain access, remove rear service cover.
208-416 Volt Applications
The electrical input connections to the dryer are the 3-phase
(3ø) power leads (L1, L2, L3, and sometimes neutral) and
ground. Single-phase (1ø) power for the control circuit and
for any single-phase (1ø) motors (if present) is done
internally to the dryer by the factory at the oven contactor.
The neutral will only be used on 4-wire service. This is
typical for 380-416V, 50 Hz.
440-480 Volt Applications
The electrical input connections to the dryer are made
through two different terminal blocks, one for the 3-phase
(3ø) power to supply the oven and one for the single-phase
(1ø) power for the motor and controls.
CAUTION: The dryer must be grounded. A ground lug
has been provided for this purpose.
Input connection wiring must be sized properly to handle
the dryer’s current draw. This information is printed on the
dryer’s data label.
Electric Models Only
Single-Phase (1ø) Wiring Connections / Hookup
3-Phase (3ø) Wiring Connections / Hookup
In Australia, the fuel gas code is AS 5601/AG 601, local
authority, gas, electricity, and any other relevant statutory
regulations.
It is important that gas pressure regulators meet applicable
pressure requirements, and that gas meters be rated for the
total amount of all the appliance Btu being supplied.
IMPORTANT: Failure to comply with these codes or
ordinances, and/or the requirements stipulated in this
manual, can result in personal injury and improper
operation of the dryer.
For ease of service, the individual gas supply line of each
dryer must have its own manual shutoff valve.
The dryer and its individual shutoff valve must be
disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in
excess of 1/2 psig (3.5 kPa) for non-CE dryers or 50 mb for
CE dryers.
Failure to isolate or disconnect the dryer from supply as
noted can cause irreparable damage to the gas valve,
voiding the warranty.
NOTE: The dryer must be isolated from the gas supply
piping system by closing its individual manual shutoff
valve during any pressure test of the gas supply system at
test pressures equal to or less than 1/2 psig (3.5 kPa) for
non-CE dryers or 50 mb for CE dryers.
!
WARNING
Fire or explosion could result due to failure of isolating
or disconnecting the gas supply as noted.
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 data label and pressure must be confirmed. If this
information does not agree with the type of gas available, do
not operate the dryer. Contact the reseller who sold the dryer
or contact the manufacturer.
The input ratings shown on the data label are for elevations
up to 2,000 feet (610 meters), unless elevation requirements
of over 2,000 feet (610 meters) 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
(610 meters) is made by changing each burner orifice. If this
conversion is necessary, contact the reseller who sold the
dryer or contact the manufacturer.
IMPORTANT: If connection to this appliance is made with a
flexible hose, it must be suitable for the appliance category
in accordance with national installation regulations of the
country of destination, and if in doubt the installer must
contact the supplier. The manufacturer of this appliance
does not recommend the use of flexible gas supply line/
hose. An external gas supply shutoff must be provided.
CE and Australian Dryers
There is an N.P.T. to B.S.P.T. adaptor included with each dryer,
which must be installed to the gas inlet. The adaptor is
shipped in the tumbler.
IMPORTANT: Pipe joint compounds that resist the action of
natural, propane, and butane gases must be used.
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