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SiBE04-624_B
Note:
Conditions for
During heating operation, humidifying operation is available when the following conditions 1~5
are met at the same time.
Humidifying
1. Indoor heat exchanger temperature is 12°C or more.
Operation
2. Outdoor temperature is from –10°C to 24°C (in trial operation, up to 34°C is possible).
3. Approx. 1 minute has already passed after heating operation startup. (See the Note.)
4. Heating operation does not work to its full capacity. (when "continuous" humidification is
5. Room humidity is under 70%RH.
Note:
How to Check the
You can check whether the humidifier unit is in good working order. If you conduct humidifying
trial operation, you can check even beyond the range of the normal conditions for humidifying
Motion of
operation.
Humidifying
1. Hygroscopic fan ................................Check if air is discharged from the front outlet of the
Operation
2. Humidifying fan / heater / damper .....Check if warm air is discharged from the duct of
3. Humidifying rotor ...............................Check if the rotor is rotating with the top panel off.
To check performance estimate from a psychrometric chart with the measured temperature and
humidity of the outdoor air and humidified air (in front of the indoor outlet) using a thermal
hygrometer.
Function and Control
Powerful humidifying ability
The humidifying capacity is 450 ml/h (50 class) and equivalent to that of a normal humidifier.
Model
Humidifying Capacity
The values above are measured at 7°CDB / 6°CWB of outdoor air temperature and 7.5 m
humidifying hose length.
No need for water supply or cleaning
Water supply and cleaning are unnecessary as there is no water tank, and there is no
proliferation of bacteria.
Humidity control
The target humidity level is 40 to 50%RH.
You can select from Low, STD (standard), Hi (high), and CONT (continuous). The target
humidity cannot be set by percent.
When the outdoor temperature and humidity are low, the humidifying capacity decreases. In
addition, the moisture in the room may not attain sufficient humidity when the ventilation
volume is high, the preset temperature is high, or the preset humidity is high.
After the HUMID HEATING operation starts, the relative humidity in the room lowers
temporarily. This phenomenon is caused by the increase of saturated water vapor.
Therefore, the humidity rises gradually after the temperature reaches the preset
temperature.
In humidifying operation, the operation sound increases by about 2 dB both in the indoor unit
and outdoor unit. (When the airflow rate is in L or SL, the operation sound increases by
about 3 dB in the indoor unit.)
This system does not suppose the storage of musical instruments.
Humidifying operation does not work under –10°C.
selected, humidifying operation has the priority.)
Excluding the case when it is recovered from thermostat-off or when the defrost operation
finished.
28 class
42/50 class
28 class
42 class
400 ml/h
425 ml/h
humidifier unit.
outdoor unit.
3
Airflow rate (m
/min)
0.40
0.44
Main Functions
50 class
450 ml/h
23
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