FloAire PCU Filtration - Manual (Page 19)

19
MAINTENANCE
To guarantee trouble free operation of this PCU, the manufacturer suggests following these guidelines.
Most problems associated with PCU failures are directly related to poor service and maintenance such as
not replacing or cleaning filters.
Please record any maintenance or service performed on this fan in the documentation section located at
the end of this manual.
WARNING: DO NOT ATTEMPT MAINTENANCE ON THE PCU UNTIL THE
ELECTRICAL SUPPLY HAS BEEN COMPLETELY DISCONNECTED FROM THE
FAN.
General Maintenance
1. PCU doors and approaches to PCU should be kept clean and free from any obstruction.
2. Filters have a airflow direction associated with them. Pre-filters should be installed so drain holes
are at the bottom edge of the filter. All other filters have an airflow direction sticker that must
match the direction of airflow. See the picture below for this illustration and see table below for
filter part numbers.
3. All fasteners should be checked for tightness each time maintenance checks are performed prior
to restarting unit.
4. Ductwork and PCU should be cleaned according to code requirements.
Filter Information
NOTE FILTERS INSTALLED WITH DIRECTION ARROW STICKERS MATCHING DIRECTION
ARROW ON PCU FRAME
ABOVE IS A SIZE 1 UNIT, V BANK AND NUMBER OF FILTERS WILL VARY FOR OTHER SIZES