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6. GENERAL OPERATING INFORMATION
DOOR SWITCH
MODE SELECTOR
• II (300 CFM)
• I (220 CFM)
OPERATIONS
Maximum Filtration
(300 cfm)
Normal Filtration
(220 cfm)
FUNCTION
The Whole House HEPA system is comprised of a ventilator, speed selection switch,
3 stages of filtration and the cabinet enclosure system. The ventilator pulls air through
the pre-filter and then threw the impregnated carbon pad for odor control and finally
the last stage of filtration is the HEPA filter which removes 99.97% of particles 0.3µm
in size.
OPERATION MODE OPTIONS
The unit features two speeds of operation for your convenience. The speed selection
switch is located on the front of the motor assembly. At lowest speed the unit will
provide 220 CFM of clean air while at highest speed, the unit will provide 300 CFM of
clean air. It is recommended that the unit be operated on highest speed at all times to
maximize the benefits of the HEPA filtration system. If for some reason the filtration
needs are not as important then one might operate the unit at low speed.
An access door is provided at the front of the unit to permit
access to the filters and speed selection switch. Opening the
latch on the right side of the unit will permit the door to swing
open. A safety door interlock switch cuts the power to the
motors for your safety. If needed the door can be removed
from the cabinet hinges by holding the top part of the door with
one hand and gently taping on the bottom edge of the door with
the other hand to release the door from its hinges.
RECOMMENDED OPERATION
The return plenum mount model operates in conjunction with your forced air heating/
cooling system. A forced air distribution system continuously circulates the same air
inside your home. The whole house HEPA filtration system operates on the principal of
bypass filtration, which means that a portion of the air being returned into the furnace is
filtered on each pass. Over time all the air in the home gets cleaned. It is recommended
that the furnace blower be in operation whenever the filtration system is in operation.
For stand-alone attic installation, the HEPA filtration system must be operated
continuously whenever a part of all the system is located in an unconditionned space to
avoid condensation in the ductwork below freezing (32°F ,0°C)
Maintenance of the unit should be performed at regular interval to keep the benefits of
the HEPA filtration unit.
