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Operation (Continued)
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), “By-pass”
ventilation will draw in the cooler outside air and reduce the cool-
ing load on the system.
2. Night purge
“By-pass” ventilation can be used to release hot air from inside
the building that has accumulated in buildings a business district
during the hot summer season.
3. Office equipment room cooling
During cold season, outdoor air can be drawn in and used as is
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 unit)
Remove all dust and dirt on air filters and Lossnay core(s) at regular
intervals in order to prevent a deterioration in the Lossnay functions.
Guideline: Clean the air filters once a year.
Clean the Lossnay core(s) once two year.
Removing the parts
1) Maintenance cover
Locate and remove the cover fixing screw. Pull back the hinged clip.
Open the door and lift off of the hinge brackets.
2) Lossnay core(s)
Take hold of the handle and draw the Lossnay cores out from the
main unit.
Model LGH-F300, F470, F600RX3-E: ....................... 2 cores
Models LGH-F1200RX3-E: ....................................... 4 cores
3) Air filters
After pulling out the Lossnay core(s), pull the air filters, located at
the bottom left and right of the Lossnay core(s), off the velcro that
holds them in place.
Model LGH-F300, F470, F600RX3-E: ....................... 4 filters
Models LGH-F1200RX3-E: ....................................... 8 filters
Cleaning the parts
1) Air filters
Use a vacuum cleaner to remove light dust. To remove stubborn dirt
wash in a mild solution of detergent and lukewarm water. (under 104°F)
CAUTION
• Do not use the hard nozzle of the vacuum cleaner. It may dam-
age the exposed surfaces of the Lossnay core(s).
• Under no circumstances should the Lossnay core(s) be washed
in water.
Maintenance
CAUTION
• Never wash the filters in very hot water and never wash them
by rubbing them.
• Do not dry the filters by exposing them to a flame.
2) Lossnay core
Use a vacuum cleaner to suck up the dust and dirt on the exposed
surfaces of the Lossnay cores. Use a soft brush only to clean ex-
posed surface areas.
Corner Vacuum cleaner
(with brush attachment)
Lossnay core
Do NOT wash in water.
Vacuum cleaner
Air filter
Hinge
Hinge bracket
Maintenance cover
Maintenance covers
Hinge
Air filters
Velcro
Lossnay core
Handle
Handle
Lossnay
core
Models LGH-F300, F470, F600RX
3
-E Model LGH-F1200RX
3
-E
Lossnay core
Main unit
Hinge bracket
Models LGH-F300, F470, F600RX3-E Model LGH-F1200RX3-E