Filter/Motor Indicator Led (Ml/Fl) - Rsr - Price FFU series Installation And Service Manual

FAN FILTER UNIT
INSTALLATION & SERVICE INSTRUCTIONS
Filter/Motor Indicator LED (ML/FL) – RSR
Sample line string:
FFU-1-1//I/24/48/RSR/FC/ECM/115/10//CF//HEPA//BFC////DSW-115//PC-115//RMB/ASSP/INJ//FL+ML+BACnet/// WPFH/PL-
AL/F-AL//PL-B12/F-B12
LED Operation
Option Code
Filter LED FL
Motor
ML
LED
Calibration
Filter LED will come factory set to activate at the pressure drops listed in the Table below.
Filter
HEPA
ULPA
If different set points are desired, they can be adjusted as follows:
STEP 1: Remove Loctite from adjustment screw hole.
LED
Action
Color
Green None
Yellow Change Filter
Green None
Red Troubleshoot Motor
FIGURE 9: PRESSURE SWITCH ADJUSTMENT SCREW.
Notes
Indicates normal operation until filter pressure drop exceeds
calibrated pressure drop (factory set at 1.5x clean filter pressure).
Indicates filter pressure drop has exceeded calbirated setting (factory
set at 1.5x clean filter pressure.
Indicates normal motor operation when the static pressure is above
0.2" w.g.
Indicates motor is not in operation, and that unit static pressure is
below 0.2" w.g.
Pressure @ 90fpm [in w.g.]
0.4
Filter Indicator Set Points
0.6
1.5x Clean Filter [in w.g.]
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0.6
0.9
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