FAN FILTER UNIT
SERVICE INSTRUCTIONS
Filter/Motor Indicator LED (ML/FL) - ECM Units
Sample line string: FFU-1-X/I/SUPPLY/24/48//RSR/HEPA/FC/
ECM
/115//R+TMB/
FL+ML+BACnet
/BFC/TC/DSW-115//ASSP///
WPF/PL-AL/F-AL/PL-B12/F-B12
LED Operation
LED Color
Unit Status*
Action
Notes
Green
Normal
None
Indicates normal operation until pressure drop exceeds calibrated pressure
drop (factory set a 1.5x clean filter pressure).
Yellow
Ftr Loaded
Change or calibrate
filter
Indicates filter pressure drop has exceeded calibrated setting (factory set at
1.5x the clean filter pressure).
Red
Off
Adjust setpoint / check
control mode
Indicates motor setpoint is 0%. If alternate setpoint is expected please
check control mode.
Blinking Red
Low Pressure
Troubleshoot motor
Indicates unit pressure is below 0.1 in. w.g. and motor setpoint is above
0%. Please contact Applications (criticalenvironments@priceindustries.
com).
*Unit status is shown on BFC LCD screen or as BACnet point: "MV1 - Unit Status"
Integrated LED Lighting (UFFU)
For details on installation and wiring please refer to the
URDC Ultra Remote Driver Cabinet Manual
UFFU
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