Mitsubishi Electric LGH-15RX5 -E Instruction Manual page 40

9. Automatic Ventilation Switching
9.1 Effect of Automatic Ventilation Mode
The automatic damper mode provides the correct ventilation for the room conditions. It eliminates the need for troublesome
switch operations when setting the Lossnay ventilator to "By-pass" ventilation. The following shows the effect "By-pass" ventila-
tion 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. Cooling using outdoor air
During cooler seasons (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, "By-pass" ventilation draw in the cool outside air and use it as is to cool the room.
3. Night purge
"By-pass" ventilation can be used to release any accumulated hot air from inside the building during the hot summer season.
4. 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 office
equipment use.
(Only when interlocked with City Multi and Mr. Slim indoor unit)
9.2 Ventilation mode control
Lossnay (heat exchange) ventilation or bypass (normal) ventilation is achieved by switching the air duct inside the
Lossnay unit with a damper.
1 Ventilation mode
There are 3 control modes.
● Lossnay ventilation (heat exchange ventilation) mode: Heat exchange ventilation is performed regularly via
● Bypass ventilation (normal ventilation) mode
● Automatic ventilation mode
2 Damper control for each system
The control indicated below can be performed according to the system that is paired
●Up to two of the Lossnay remote controllers PZ-60DR-E, PZ-41SLB-E, and PZ-52SF-E can
be used in the same group, but they cannot be used together with a different remote con-
troller. When using two remote controllers, be sure to use the same model of remote con-
Caution
troller.
●PZ-41SLB-E cannot be used in M-NET control. When controlling Lossnay in M-NET control,
use PZ-60DR-E or PZ-52SF-E.
C-40
the Lossnay core.
: Ventilation is performed regularly without going
through the Lossnay core.
: A temperature sensor built into the unit provides
automatic ventilation to a suitable ventilation mode.
In addition, energy saving ventilation is provided by
interlocking with a Mr. Slim or City Multi indoor unit.