ADC AD22, Installation & Operator'S Manual

Page: 15 / 22

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Conversion from Natural Gas
to Propane or Butane Gas
The following conversion allows the dryer to be operated with
either propane, butane, or other liquefied petroleum gases.
The use of gas valve kit (ADC P/N 140414) disables the
internal regulator of the gas valve. Therefore, the gas supply
is ungoverned and an external regulator must be provided at
the source of the supply (example propane tank) or the gas
supply line to the dryer. The type of conversion kit supplied
will depend on the country the dryer is installed in.
Parts Required for Conversion:
Description
ADC P/N Qty
Unregulated Gas Conversion Kit ** 140414 1
OR
Regulated Propane Gas
Conversion Kit
*** 140416 1
Burner Orifice (Injector) * 1
Propane Conversion Label 114515 1
* Refer to page 14 for orifice (injector) size.
** Required for unregulated propane or butane only.
*** Required for regulated propane or other liquefied petroleum gases only.
Instructions
Disconnect electrical power to the dryer.
Close all shutoff valves in dryer’s gas supply line.
Open the panel located just below the loading door.
Locate the gas train and disconnect the union, three electrical
plugs, and the gas train mounting screws from the burner.
Carefully slide the gas train out of the gas train enclosure.
(The carbon ignitor located at the far end of the gas train is
very fragile.)
Remove two burner tube mounting screws and remove burner
tube in order to gain access to the orifice.
Using a 3/8” wrench or socket, remove the existing orifice
and replace it with an orifice from the kit.
IMPORTANT: Use extreme care when removing and
replacing orifice (injector). This orifice (injector) is made of
brass, which is easily damaged.
Reinstall the burner tube onto the burner base.
Use a flat screwdriver to remove the regulator vent cap.
• For unregulated propane gas (most countries): install
blocking pin (ADC P/N 140414).
• For regulated propane gas (some countries): remove
the white plastic regulator adjustment screw (under vent
cap). Remove spring under screw and replace with
spring from kit (ADC P/N 140416). Replace regulator
adjustment screw.
Install the gas train back into the dryer gas train enclosure.
Be sure the tab at the rear of the gas train engages into the
mounting slot.
Connect the union and the three electrical plugs.
Affix Propane Conversion Label (ADC P/N 114515) to the
dryer’s data label.
Complete Propane Kit Conversion Confirmation Label (ADC
P/N 114083) and affix this label as close as possible to the
dryer’s existing dryer rating (data) label/plate.
Unregulated Gas Valve
Regulate (govern) gas externally (refer to “Supply Pressure”
in chart on page 14) to the correct gas pressure for the gas
being used. Operate dryer through one complete cycle to
ensure proper operation.
Regulated Gas Valve
Refer to “Gas Pressure Adjustment” on page 16 to adjust
the gas valve to the appropriate burner pressure listed on
page 14. The supply pressure must also match what is listed
on page 14 for the type of gas to be used.
IMPORTANT: Conversions done improperly can result in a
fire or explosion!
Conversion from Propane
or Butane Gas to Natural Gas
The following conversion allows the dryer to be operated with
natural gas.
Parts Required for Conversion:
Description
ADC P/N Qty
Vent Cap and Spring 140415 1
Burner Orifice (Injector) * 1
* Refer to page 14 for orifice (injector) size.
Non-CE Dryers
Affix Propane Conversion Rating Label Addendum (ADC
P/N 114090) as close as possible to the dryer’s existing dryer
rating (data) label/plate.
CE Dryers
Affix new data plate label that came with the conversion kit.
Open all shutoff valves, reconnect electrical power to the
dryer, and test for leaks.
IMPORTANT: Never test for leaks with an open flame!!!
Use a soapy water solution or product intended for that
purpose.