SiUS04-904
Control Specification (15/18/24 Class)
Function and Control
55
4.8
Fan Control
Outline
Fan control is carried out according to the following conditions.
1. Fan ON control for electric component cooling fan
2. Fan control when defrosting
3. Fan OFF delay when stopped
4. ON/OFF control in cooling operation
5. Tap control when
dropping
function is working
6. Fan control in forced operation
7. Fan control in indoor/outdoor unit quiet operation
8. Fan control in POWERFUL mode
9. Fan control in normal operation
Detail
Fan OFF Control when Stopped
Fan OFF delay for 60 seconds must be made when the compressor is stopped.
Tap Control in indoor/outdoor unit quiet operation
1. When Cooling Operation
When the outdoor air temperature is lower than 99°F (37°C), the fan tap must be set to L.
2. When Heating Operation
When the outdoor air temperature is higher than 39°F (3.8°C), the fan tap must be turned to L.
4.9
Liquid Compression Protection Function 2
Outline
In order to obtain the dependability of the compressor, the compressor must be stopped according
to the conditions of the temperature of the outdoor air and outdoor heat exchanger.
Detail
Operation stop depending on the outdoor air temperature:
Compressor operation turns OFF under the conditions that the system is in cooling operation and
outdoor air temperature is below 14°F (-10 C).
Operation can be extended to 0°F (17-18°C) (RXS-DVJU) with the addition of a wind
baffle (KPW945A4).
4.10 Low Hz High Pressure Limit
Outline
Set the upper limit of high pressure in a low Hz zone. Set the upper limit of the indoor heat
exchanger temperature by its operating frequency of Hz. Separate into three zones, reset zone,
unchanged zone and
dropping
zone and the frequency control must be carried out in such zones.
Detail
Separate into Zones
Note:
Dropping
: The system stops 2 minutes after staying in the
dropping
zone.
Dropping zone
(59°C)
(56°C)
(60°C)
Содержание FTXS09HVJU
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