Harbor Freight Tools 40211 - Manual (Page 5)

For technical questions, please call 1-800-444-3353. Page 5 SKU 40211
Note: We recommend that a bypass valve (not included) be added between the
Air Inlet (#6) and the Air Outlet (#7) for applications when the Air Dryer is not needed.
The bypass valve must be installed by a plumber or an authorized service technician.
See FIGURE 1.
Installation (continued)
FIGURE 1
Air Outlet (#7) Air Inlet (#6)
Compressor Air Dryer
Bypass Valve
Note to professional installer: The shut-offs (not included) for both the air inlet and air
outlet, must be plumbed below the horizontal piping containing the bypass valve. See FIG-
URE 1.
Using the bypass valve (not using the Air Dryer).
If you do not wish to use the Air Dryer with a certain application follow these steps:
1.
Turn off and unplug the compressor and the Air Dryer.
2. Engage the shut-off valves, closing both of the air inlets.
3. Open the bypass valve.
4. Plug in and turn on your compressor and you’re ready to work without the Air Dryer.
Using the Air Dryer without the bypass valve.
1.
Before plugging in the compressor or the Air Dryer, open both of the shut-off valves.
2. Close the bypass valve.
3. Plug in and turn on the Compressor and Air Dryer.
Shut-off Shut-off
Electrical Installation
Instructions for the following wiring diagram are on page 6.
FIGURE 2
Green (Hot) Black (Neutral)
Green/ White (Ground)
Pre-wired at the factory
Black (Hot) White Green (Ground)
Electrical Cord
REV 01/03