camfil CamCube AS HEPA Filter Housing Instruction Manual
- June 3, 2024
- camfil
Table of Contents
camfil CamCube AS HEPA Filter Housing
CAMCUBE AS
Ducted HEPA filter housing with an innovative integrated scanning system to
perform integrity tests. The filter housing is reversible depending on the
airflow direction.
The filter housing and the scanning system is designed so that the scanning
covers the entire downstream face of each filter, the perimeter of each
filter, the seal between the filter frame and the grid structure, including
its joints.
DESCRIPTION
- INSPECTION LENSES
- CRANK TO MOVE THE SCANNING PROBE
- BATTERY BOX WITH LIGHT SWITCH
- DOWNSTREAM SCANNING PORT/S
- UPSTREAM AEROSOL SAMPLING PORT
- PRESSURE DROP MEASUREMENT PORTS
- SCANNING PROBE
- LIGHT
- FILTER CLAMPING SYSTEM
- FLANGE CONNECTION
- UPSTREAM MEASURING POINT
HANDLING INSTRUCTION
When the housing is moved or transported the service door must be closed and the scanning mechanism and crank must be protected. When needed the housing can be wiped with water or a mild detergent.
INSTALLATION OF THE FILTER HOUSING
For information about the flange connections, see the drawings. The equipment
needed for installing the housing is not provided by Camfil. Be aware of the
airflow direction when installing the housing. A minimum 1-meter free space in
front of the service door is needed for a filter change. The housing is
provided with measurement ports for pressure drop.
NOTE: Designed for indoor use
VISUAL INSPECTION
For visual inspection of the scanning system, the housing is equipped with wide-angle inspection lenses and LED strip lights. The led strip has a lifetime of 20 000 hours and protection class IP44. The on/off switch is placed on the battery cover. To change the battery (9 V Lithium block), the cover is removed by loosening the two socket screws with a hex key (3 mm). The used battery shall be recycled at a local collection facility.
SCANNING
Upstream aerosol concentration is sampled through the upstream sample port, hydraulic coupling ID 4,3. Follow the recommendations in ISO 14644-3 when it comes to the concentration of upstream aerosol challenge and its verification.
Connect the particle counter to the scanning port, hydraulic coupling ID 4,3. The scanning process is executed one filter at a time. To obtain the optimal probe velocity of 10 mm/s the crank should be turned at 12 rpm, roughly 5 seconds per turn. Turn the crank until you feel a slight resistance. Use the inspection lenses to verify that the probe is either in the top or bottom position.
WARNING:
Turning the crank beyond the end position or the use of excessive force can
damage the probe mechanism. If damaged, the entire probe mechanism will need
to be replaced.
Closest to the service door you find the port for pressure drop tests. Aerosol sampling port in brass.
When equipped with two filters the housing has double sampling ports. The schematic drawing indicates which port is connected to which scanning probe.
Crank to move the scanning probe. Turning the crank beyond the end position or the use of excessive force can damage the probe mechanism. If damaged, the entire probe mechanism will need to be replaced.
FILTER INSTALLATION & FILTER CHANGE
Camfil recommends filters with handles for simplified filter installations and filter change.
Filter installation
Shut down the ventilation system and open the service door. Handle the filter
very carefully. It is essential you do not touch the filter media. The media
is extremely sensitive and the slightest touch of the media can lead to
leakage. Place the new filter carefully into the clamping device. Be careful
not to damage the filter gasket. The gasket should be placed on the outlet
side. Use a hex key (5 mm) to tighten the screw until the gasket is compressed
about 30 % or a maximum 2,5 Nm. Close the service door and restart the
ventilation system.
HEPA-filter change
Camfil recommends protective equipment like overalls, gloves and face masks
when changing filters. Always check local regulations before changing filters.
Shut down the ventilation system and open the service door. Untighten the
filter clamping device with a hex key (5 mm) and remove the used filter. See
the instructions for installing the new filter above. The used filter must be
taken care of and be handled according to local regulations.
Example of filter with handle (Absolute DG)
The tightening screw for the clamping device tightens a maximum of two parallel filters.
Pressure-relieving hinges;
Designed to avoid shearing damage to the service door gasket.