DRI-AIR
INDUSTRIES, INC.
OPERATING MANUAL - HA750-1500B HOT AIR DRYERS
Revision 10/8/02
Page 6
Electrical Connection:
Open electrical access door on the front of the electrical panel
enclosure box by turning the disconnect off and loosening the
screws on the clamping tabs for the door. Locate the
disconnect by following the operating handle down to the
electrical panel.
Insert the incoming power cable or conduit through the hole
provided on the side of the enclosure.
«
use approved wire and fastening means
«
Wire incoming power to the top of the disconnect as shown in
the diagrams below.
NOTE:
When 3 wire supplies are used in place of 4 wire supplies,
a control transformer is required.
3 PHASE DRYER INSTALLATION
CHECK FOR CORRECT MOTOR ROTATION
BEFORE RUNNING DRYER
To check blower motor rotation.......
Turn on the power to the dryer and turn the START/STOP
Actuator on the dryer’s electrical panel enclosure and quickly
press the E-STOP button. Observe the cooling fan on the
blower motor. The motor should rotate in a “clockwise”
direction or as shown by the arrows on the blower housing. If
the motor is rotating counterclockwise, switch any two
adjacent supply wires.
Process Air Thermocouple Connection:
The dryer is supplied with a 6’ long 0.125” Type J
Thermocouple with a 18 foot armored connecting cable and
compression fitting.
Install the compression fitting into the inlet port of the material
hopper and insert the thermocouple so the tip of the probe is
situated in the center of the air stream and tighten the
compression fitting.
Connect the cable to the thermocouple plug on the side of the
dryer’s electrical panel enclosure.
The unit is now ready for operation.
INSTALLATION
PROCEDURE
XX
