Checking for Proper Air Flow (continued)
INSTALLATION NOTE: Models 150, 200, 300, and 400
These models use a three-phase process blower. If the dryer shuts down and a Process
Loop Break shutdown alarm is indicated within the first few minutes of operation, check
for proper air flow or check the Process RTD for proper installation.
If the air flow is reversed, the process blower is turning in the wrong direc-
tion. Turn off and lock out the main power source. Open the electrical
enclosure and reverse any two leads connecting the main power supply to
the dryer.
WARNING: All wiring, disconnects, and fuses should be installed by
qualified electrical technicians in accordance with electrical codes in
your region. Always maintain a safe ground. Do not operate the equip-
ment at power levels other than what is specified on the machine serial
tag and data plate.
3-10 l Installation
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