Thoreson-McCosh Inc
EDITION 05/07/10
6
IB201001.doc
SECTION 2.3 QUICK START
NOTE:
Please read this section, as it contains information not found elsewhere in the
manual. Most steps will refer you to the correct section for reference.
1. Uncrate equipment (Section 2.1).
2. Clean drying hopper. All hoppers are shipped with a light coat of oil.
3. Connect power. (Section 2.4)
4. Connect water lines to after-cooler (optional equipment). Requires 3 to 4 gallons per
minute, maximum 100 P.S.I., 80°F/ 27°C.
5. Connect compressed air to the units requiring compressed air. (TD-480 & up). 60 P.S.I.
minimum, 120 P.S.I. maximum.
6. Check process blower rotation (Section 2.4).
7. Connect Air hoses. The smaller diameter red process hose connects from the dryer to
the diffuser on the hopper. The black hose returns air from the connection near the top
of the hopper back to the dryer unit.
8. Set process temperature setpoint (Section 4).
9. Visually inspect drying system (Section 9.1).
10. Fill hopper with material.
11. Begin drying, giving first batch of material sufficient residence time before beginning to
use material (typically 3 to 4 hours). Check with resin manufacturer.
SECTION 2.4 POWER CONNECTIONS
The power line terminals are identified as L1, L2, and L3. All heater and blower circuits are
individually fused. It is highly recommended, and required by many local codes, that a
fusible disconnect of adequate capacity be installed by user. The unit is ready to operate
after connecting the power lines to their respective terminals and properly grounding the
machine.
Blower motor rotation on three phase units must be checked when the unit is first started
and after any reconnection of power to the unit. All Tech-3 dryers from the TD-12 up to the
TD-360 include a Blower Rotation Alarm. This alarm will activate the alarm light and
display a message on the digital readout indicating that the dryer is phased incorrectly.
On larger dryers (TD-480 and above), the Blower Rotation Alarm is optional. If the alarm is
not included on your dryer, you must check that the process blower is rotating in the right
direction by removing the side panel and checking that the process blower motor is rotating
clockwise.
To correct the blower rotation, reverse any two of the three incoming power leads to the
terminal block. Do not swap the power leads at the blower itself.
CAUTION
: The correct phase is extremely important. Incorrect phasing can damage the
dryer.
