Mitsubishi Electric Y Series Manual page 184

INTRODUCTION
184
LGH-RVX Series (Standard model)
• Further reduction of power consumption
with the introduction of a DC motor
Low power consumption is realized with the introduction
of a high efficiency brushless DC motor. Compared to
models with an AC motor, power consumption is reduced.
• Improved airflow range
Wide airflow range
Each fan speed has a range setting of 25, 50, 75 and 100%, to allow much finer airflow control. When used in combination with the CO
or timer function, airflow can be controlled even more precisely to realize better performance and reduce power consumption.
Fan speed adjustment
The default fan speed values can be minutely adjusted. Use the PZ-61DR-E remote controller to set the speed as desired.
1) Considering the total hours of Lossnay operation (filter clogging), fan power can be adjusted automatically after a given period of time.
2) After the unit is installed, fine adjustments may be made if the airflow is slightly lower than the desired airflow.
LGH-RVXT Series (Thin body type)
The LGH-RVXT Series has a large airflow of 1500 - 2500 CMH but a thin body of approximately 500mm. Therefore, installing the unit in the ceiling
is easy.
LGH-150/200RVX-E
Height: 808mm
GUF Series
(Lossnay with Dx-coil unit)
Along with Lossnay ventilation, the OA processing
unit is really two units in one, functioning as the
main air conditioner when the load is light and
adding supplemental air conditioning when the
load is heavy.
Characteristic curves of the LGH-RVX/RVXT Series
Offers a wide range of
airflow variations, from
small to large volumes
25% 50% 75%
Fan speed Fan speed Fan speed
1 2 3
Airflow
LGH-150/200/250RVXT-E
Height: 500mm
Comparison between latest and conventional power consumption
(Latest model: Fan speed 4 at 230V 50Hz, Conventional model: Extra-high at 220V 50Hz)
(W)
Conventional model Latest model
P-Q curve image
100%
Fan speed
Fan speed
4
1
t
EA (exhaust air)
Heat from the indoor air (both sensible
and latent) is recovered by the Lossnay
OA (outdoor air) core and vented outside by the
exhaust fan.
Fresh outdoor air is drawn
in by the supply fan in quantities
required for ventilation.
Heat recovery unit
(Lossnay core)
Temperature and humidity are
exchanged between the supply
air and exhaust air.
Maintenance cover
Air filter
Prevents clogging in
the Lossnay core.
Dx-coil
Cools or heats the outdoor
air that is drawn in.
(W)
550
500
450
400
350
50
Conventional model
+0
+1
+2
+3
+4
Fan speed Fan speed Fan speed
2 3 4
Airflow
LGH-RVXT Installation image
Ceiling
Exhaust fan
High efficiency filters (optional)
Supply fan
RA (return air)
The exhaust fan draws in
contaminated indoor air.
SA (supply air)
Fresh outdoor air is vented to
the indoor rooms after it is processed.
Latest model
sensor
2