Mitsubishi Electric PURY-RP200 Service Handbook page 132

[ VII Control ]
-9- Capacity Control of Outdoor Fan
(1) Control method
Depending on the capacity required, the rotation speed of the outdoor unit fan is controlled by the inverter to keep a constant
condensing temperature of (outside temperature +10°C [50°F]) during cooling operation and a constant evaporation temper-
ature of (0°C [32°F] =0.71 <Pa [103psi]) during heating operation.
The OS in the multiple-outdoor-unit system operates at the actual outdoor unit fan control value that is calculated by the OS
based on the preliminary outdoor unit fan control value that the OC determines.
(2) Control
Outdoor unit fan stops while the compressor is stopped (except in the presence of input from snow sensor).
The fan operates at full speed for 5 seconds after start-up.(Only when TH7<0°C [32°F])
The outdoor unit fan stops during defrost operation.
(3) Outdoor unit heat exchanger capacity control patterns
Model
RP200 - RP300
models
HWE10140
Operation Operation
mode patterns
Cooling- 1
only
2
Cooling-
main
3
4
5
Heating-
1
only
Heating- 1
main
2
Defrost 1
Solenoid valve
SV4a SV4b SV4c
OFF OFF OFF
OFF OFF OFF
OFF ON ON
ON OFF ON
ON ON ON
ON ON ON
ON ON ON
ON ON ON
ON ON ON
- 123 -
SV4d SV5c
ON ON
OFF ON
OFF ON
OFF ON
OFF OFF
OFF OFF
ON OFF
OFF OFF
OFF OFF
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