FFU Installation instructions page4 (Filter/Motor Indicator LED)

- Nov 20, 2018-

Filter/Motor Indicator LED

OptionCodeLED ColorAction Notes
Filter LEDFL geenNoeIndicates normal operation until filter pressure drop exceeds 
Yellow
Change Filter
indicates filter pressure drop has exceeded calibrated setting (factoryset at 1.5x clean filter pressure)
Motor LEDML
Green NoneIndicates normal motor operation when the static pressure is above 0.2" w.g
RedTroubleshoot motorIndicates motor is not in operation, and that unit static pressure is below 0.2"w.g.

Installation

STEP 1: Remove filter from box by following the instructions found on page 23 of this installation manual.

STEP2: Take LED cable assembly out of FFU-HE Plenum

STEP3: Remove well nut in genter port of BTR filter.

-ffu-installation-manual-21SSTEP 6: Put lock washer and threaded standoff back on cable and tighten to LED.


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STEP 7: With two(2)people holding the unit, pull cable back through plenum until plenum can rest on top of filter.

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STEP 8: Refer to BTR Filter instruction found on page 13 for proper filter installation.

STEP 9: Refer to wiring diagram(Located in control box) to connect to the BFC controller instead of the terminal block.

Calibration

All pressure transducers are factoty calibrated. If a different pressure transducer set point is desired.

MOTOR/FILTER INDICATOR

Operation

OptionCodeAction Note
Motor
MBAS
Troubleshoot Motor
Closes a dry contact to let the signal pass through when the static pressure is less than 0.2w.g. indicating the motor is not operating
 Filter FBASChange FilterCloses a dry contact to let the BAS signal pass through when the static pressure is greater than the calibrated pressure drop(factory set at 1.5x clean filter).

Unit will come factory calibrated; no additional field   modifications are required.

Wire unit terminal block according to wiring diagrams

NOTE: Wiring should be carried out by a certified electrician and meet national and local electrical codes.

                                


                                                               Pressure switch(es)completes signal when 

                                                                   failure is reached (as per chart above)

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FIGURE 18:  PRESSURE SWITCH DIAGRAM