DM12-01.01.02-06en
MIV V4+ Indoor Units
Middle Static Pressure Duct Type MVM-A-VA1
13
MVM112A-VA1
MVM140A-VA1
If the external static pressure is too great (due to long extension of duct, for example), the air flowvolume
may drop too low at each air outlet.
So there’s a
limit air flow volume
line for each speed, which is the min. airflow of this duct unit. At this flow
volume, the fan achieve the max. ESP, and indoor evaporator may protect by low temp.
As well, there’s a limit airflow volume, which is the max. Value at each speed. It request the unit to connect
duct for air-inlet and outlet, to prevent damage from the high temp. of motor/evaporator.
E.g. for MVM
140A-VA1 model, if at high speed, it is required to connect duct with min. 10Pa resistence.If set to
SH, it should be at least 20Pa duct.Similarly , it only allow max. 100Pa duct resistence @ Hi speed. If need 120Pa,
should set to SH.
