Mitsubishi Electric Lossnay LGH-15RVX3-E Operating Instructions Manual page 4

n Display and Function button (PZ-62DR-EA/EB)
n LOSSNAY ENERGY RECOVERY VENTILATE
setting
Both fresh air supply and return air pass through the energy
recovery cores. Energy recovery ventilation makes the fresh air
temperature close to the indoor temperature in the winter and the
summer season.
Models 15 to 100RVX3
Damper
Exhaust air
Return air
Fresh air Supply air
Lossnay core
n BY-PASS VENTILATE setting
The fresh air passes through the Lossnay cores and the return
room air is exhausted direct. Lossnay By-pass ventilate is normally
operated during the spring/autumn season.
Models 15 to 100RVX3
Damper
Return air
Exhaust air
Fresh air Supply air
Lossnay core
MENU RETURN
button button
Function buttons
F1 F2
Models 160 and 200RVX3
Damper
Exhaust air Return air
Supply air
Fresh air
Exhaust air
Return air
Fresh air
Supply air
Lossnay core
Models 160 and 200RVX3
Damper
Exhaust air Return air
Fresh air Supply air
Exhaust air
Return air
Fresh air Supply air
Lossnay core
Backlit LCD
ON/OFF lamp
SELECT ON/OFF
button
button
F3 F4
n AUTOMATIC VENTILATION setting
The automatic ventilation mode automatically provides the correct
ventilation for the conditions in the room. The following shows the
effect "By-pass" ventilation will have under various conditions.
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 cooling
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, fresh air can be drawn in and used as is to
cool rooms where the temperature has risen due to the use of office
equipment.
CAUTION
l In the case of "By-pass" ventilation, the supply air
temperature slightly rises more than the outside air
temperature because of the heat effect around the ducts or the
unit motors.
n CO
sensor control
2
When CO sensor is connected, "Auto" fan speed can be selected.
2
In "Auto" mode, the fan speed changes automatically according to
the CO sensor concentration.
2
Eng-4
2303N22HHZA0012