INTRODUCTION
The AD-40 Air Dryer
Corona discharge ozone generators are much more effective, produce more ozone and require far less maintenance if an air
preparation unit is included. The air preparation system lowers the dew point of the feed gas. Moist feed gas (air) will cause
nitric acid to form inside the generator which decreases ozone production and if not removed, causes corrosion and eventual
failure of the generatorʼs internal components. The ability of the ozone generator to produce ozone is drastically reduced as the
dew point rises above -55°C. The desiccant material has an average life expectancy of five years under normal use.
INSTALLATION
Air Dryer Installation
The dryer should be protected from direct weather. Four mounting holes are located on the back of the AD-40 for convenient
wall mounting. Mounting hardware is not provided.
Electrical Installation
Plug the AD-40 cord into any unswitched 120V electrical outlet. The air dryer should remain energized at all times. Wire it to a
120V source that does not cycle on and off. The dryer should cycle for a minimum of 12 hours without vacuum prior to startup.
Tubing Installation
Install 3/8” braided tubing from the air dryer to the AIR INLET on the bottom of the ozone generator. (See ozone generator
installation manual.)
Tubing Installation with optional Electrical Interlock Box
If your system is equipped with an electrical interlock box, follow the steps below:
1. Install 3/8” braided tubing from the air dryer to the AIR INLET on the bottom of the electrical interlock box.
2. Install another piece of 3/8” braided tubing from the AIR OUTLET on the electrical interlock box to the air inlet
barb fitting on the bottom of the ozone generator.
MAINTENANCE
Check to see that the air dryer is warm. This indicates that it is working. If the air dryer is not working, call your dealer.
The visible indicator cartridge is 25% desiccant beads which should be blue in color. If they are clear to white in appearance,
check to be sure that the unit is working. (NOTE: It is not unusual for the indicator beads to change color often. If this happens,
cycle the dryer for 24 hours without the ozone generator.) When the desiccant granules become clear to pink in appearance, they
have absorbed too much moisture and must be dried to regain their efficiency. To dry the desiccant beads, follow these steps:
1. Disconnect the braided tube from the bottom and the brass compression fitting at the top of the desiccant cartridge.
2. Remove the desiccant cartridge by opening the clamps holding the cartridge to the body of the air dryer.
3. Unscrew the cap on the bottom of the cartridge and spread the granules evenly on a cookie sheet and bake at 350°F
in an oven.
4. Check often. Once the desiccant granules regain their blue color, remove from the oven.
5. Return to the cartridge, recap, and reconnect to the air dryer.
The AD-40 is equipped with a fuse. If the fuse blows, replace only with the same type of 5 amp fuse.
MODEL AD-40 AIR DRYER SPECIFICATIONS
Energy Required: 105 Volts minimum, 125 Volts maximum, 60 Hz, 1.0 Amp
Dimensions: 20.750”H x 11.375”W x 4.250”D
Shipping Weight: 15 lbs.
