
Features
ED34-862
40
General Information
6.8.7.3 Fresh-up Operation
Both the excessive supply mode and the excessive exhaust mode are selectable.
This function creates a more comfortable air environment.
6.8.7.4 Proprietary Developed HEP Element
The heat exchange element uses a High Efficiency Paper (HEP) that has superior moisture-absorption and
humidifying properties and doubles the current efficiency of moisture absorption. The heat exchange unit speedily
recovers heat contained as latent heat (vapor). The element is made of a material with superior flame-resistant
properties and is treated with an anti-molding agent.
Features
•
High air shielding
Even in the conventional less humidity conditions, maintaining the features of the material that can get excellent
moisture permeability, we have achieved high air shielding, by special processing in the step of milling paper.
•
Polymer material that inhibits air permeability that treated on the surface of the heat exchanger element restrains
air permeability.
Supply Fresh-up
(Excessive outdoor air supply)
Exhaust Fresh-up
(Excessive exhaust air supply)
Detail
Supply air volume can be set at a higher level than the
exhaust air by the remote controller.
Exhaust air volume can be set at a higher level than the
supply air by the remote controller.
Major
effects
• Prevents inflow of toilet odor
• Prevents inflow of outdoor air in winter
• Prevents outflow of airborne bacteria from rooms in a
hospital
• Prevents outflow of odors from rooms in a nursing
home
Application
Offices, etc.
Hospitals, Nursing homes, etc.
Example
HEP anti-molding
Air supply
Normal
ventilation fan
Air exhaust
HRV
(VKM)
Portion of fresh-up
operation
Portion of
exhaust
operation
Air supply
Air exhaust
Sick room
Floor area
HRV
(VKM)
30.6˚C
62% RH
27.4˚C
63% RH
26˚C
50% RH
Integrally-formed liner
Indoor
SA
RA
Outdoor
32˚C
70% RH
Integrally-
formed liner
Temperature
and humidity
RA
SA
Operation of the heat exchanger element
(HC0013)
Highly humid air
Less humid air
Moisture permeability mechanism
Moisture absorption
Move through capillary
Moisture release
Air component
Water vapor
Polymer material
that inhibits air
permeability
Moisture absorbing liquid
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