Motor/Filter Indicator Bas (Mbas/Fbas) - Price FFU series Installation And Service Manual

FAN FILTER UNIT
INSTALLATION & SERVICE INSTRUCTIONS

Motor/Filter Indicator BAS (MBAS/FBAS)

Sample line string below:
FFU/24/48/RSR/BC/ECM/115/10//CT//HEPA//ECMDX//WK/DSW/PC/TMB/ATS/MBAS/FBAS/WPF/PL-AL/F-AL/PL-B12/F-B12
Operation
Option
Motor BAS
Filter BAS
Unit will come factory calibrated; no additional field modifications are required.
Wire unit terminal block according to wiring diagrams found starting on page 50 onwards in this manual.
Wiring should be carried out by a certified electrician and meet national and local electrical codes.
NOTE:
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Code Action
Troubleshoot
MBAS
Motor
Change
FBAS
Filter
Pressure switch(es) completes signal when
BAS Signal In
FIGURE 18: MBAS/FBAS PRESSURE SWITCH DIAGRAM.
Notes
Closes a dry contact to let the BAS signal pass through when the static
pressure is less than 0.2" w.g. indicating the motor is not operating.
Closes 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).
failure is reached (as per chart above)
FFU-HE