SiUS092230EA
Control Specification
Part 4 Functions and Control
89
5.9 Outdoor
Fan
Control
1.
Fan ON control to cool down the electrical box
The outdoor fan is turned ON when the electrical box temperature is high while the compressor
is OFF.
2.
Fan OFF control during defrosting
The outdoor fan is turned OFF while defrosting.
3.
Fan OFF delay when stopped
The outdoor fan is turned OFF 60 ~ 70 seconds after the compressor stops.
4.
Fan speed control for pressure difference upkeep
The rotation speed of the outdoor fan is controlled for keeping the pressure difference during
cooling operation with low outdoor temperature.
When the pressure difference is low, the rotation speed of the outdoor fan is reduced.
When the pressure difference is high, the rotation speed of the outdoor fan is controlled as
well as normal operation.
5.
Fan speed control during forced operation
The outdoor fan is controlled as well as normal operation during forced operation.
6.
Fan speed control during POWERFUL operation
The rotation speed of the outdoor fan is increased during POWERFUL operation.
7.
Fan speed control during indoor unit quiet/QUIET OUTDOOR UNIT operation
The rotation speed of the outdoor fan is reduced by the command of the indoor unit quiet/QUIET
OUTDOOR UNIT operation.
8.
Fan ON/OFF control when operation (cooling, heating, dry) starts/stops
The outdoor fan is turned ON when the operation starts. The outdoor fan is turned OFF when
the operation stops.
5.10 Liquid Compression Protection Function
Outline
The compressor stops according to the outdoor temperature for protection.
Details
Operation stops depending on the outdoor temperature.
The compressor turns off under the conditions that the system is in cooling operation and the
outdoor temperature is below 0°C (32°F).
However, the cooling operation range can be extended to the lowest temperature of –20°C (–4°F)
by changing facility setting. Refer to page 226 for details of facility setting.
Summary of Contents for RX-W Series
Page 1: ... Applied Models Inverter Pair Heat Pump Service Manual SiUS092230EA Inverter Pair RX W Series ...
Page 207: ...SiUS092230EA Check Part 6 Service Diagnosis 201 15 18 24 class R25105 1 2 3 4 Multimeter ...
Page 209: ...SiUS092230EA Check Part 6 Service Diagnosis 203 15 18 24 class R20704 W V U DC_P1 DC_N1 ...
Page 239: ...SiUS092230EA Piping Diagrams Part 8 Appendix 233 RX24WMVJU9 3D141502 ...