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ERV-5LGH-F-RX3-E (Feb. 2009)
Lossnay ERV
LGH-F-RX3-E
Performance Certied
to ARI 1060 Standard
2.6. Automatic Ventilation Switching - Bypass Damper Operation
Effect of Automatic Ventilation Mode
The automatic damper mode automatically provides the correct ventilation for the conditions in the room. It eliminates the need for manual switch
operations when setting the Lossnay ventilator to “bypass” ventilation. The following shows the effect “bypass” ventilation will have under various
conditions. For automatic operation, when the air conditioning system is in the cooling mode, the bypass damper will open if the entering outside
air temperature is 7.2°F or more lower than the exhaust air temperature.
(1) Reduces cooling load--If the air outside is cooler than the air inside the building during the cooling season (such as early morning or at night),
bypass ventilation will draw in the cooler outside air and reduce the cooling load on the system.
(2) Cooling using outdoor air--During cooler season (such as between spring and summer or between summer and fall), if the people in a room
cause the temperature of the room to rise, bypass ventilation will draw in the cool outside air and use it to cool the room.
(3) Night purge--Bypass ventilation can be used to release hot air from inside the building that has accumulated during the hot summer season.
(4) Office equipment room cooling--During the cold season, outdoor air can be drawn in to cool rooms where the temperature has risen due to the
use of office equipment. (Only when interlocked with CITY MULTI
®
and Mr. Slim
®
indoor units.)
2.7. Importance of Filters
2.7.1. Data Regarding Dust
Table 1 Aerosol particle diameters and applicable ranges of various filters
Table 2 Major dust concentrations
Type Reference data
Remarks: