BLUE M
Blue M - - DC 146 Series Industrial Ovens, Models DC, DCW, DCI, DCC
Page 38
Differential Air Pressure Switches (FLS):
A differential air pressure type switch is utilized to monitor for
correct operation of the circulation blower motor. Correct rotation of
the motor is necessary for the switch to properly operate. This
device uses a diaphragm to sense pressure and to mechanically
trigger a SPDT Snap Switch when the correct pressure is
developed across the blower wheel.
Note: The air pressure switch in the Model DC / DCW measures
differential pressure between ambient air and the inlet of the
blower wheel.
Note: Air pressure switches in the Models DCI and DCC measure
differential pressure between the inlet and outlet (discharge) of the
blower wheel.
If a loss of pressure / airflow were detected, the switch would open
causing power to be removed from the heaters. Audible or visual
alarms will be activated (when employed). Loss of airflow may
result from a motor malfunction, reversed motor rotation, a loose blower wheel, reversed air sensor tubes, or
a clogged HEPA filter (when applicable).
Important Note: Do not tamper with the airflow switch adjustment port located at the side of the unit. The
switch is factory preset.
Note: Your equipment configuration may be slightly different from what is shown.
WORKSPACE AIRFLOW – MODEL DC206
Thermocouples
Access Port
Model DC206
DIFFERENTIAL AIR PRESSURE SWITCH
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