Mitsubishi Electric CITY MULTI PUHY-P108 Service Handbook page 165

[ VII Control ]
(3) Capacity control of outdoor heat exchanger
Operation Operation
mode pattern
1
2
3
Cooling
only
4
5
6
1
2
3
Cooling
4
main
5
6
8
Heating
1
only
1
Heating
2
main
7
Defrost 1
All solenoid valves are turned off while the unit is stopped.
*SV5a and SV5b are available only on the P168 model and above.
Solenoid valve
SV4a SV4b SV4c
ON ON ON
OFF ON ON
OFF ON OFF
OFF OFF ON
OFF OFF OFF
ON ON ON
OFF ON ON
OFF ON OFF
OFF OFF ON
OFF OFF OFF
OFF OFF OFF
ON ON ON
ON ON ON
ON ON ON
ON ON ON
ON ON ON
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SV4d SV5a SV5b
ON ON
OFF
OFF OFF
OFF OFF OFF
OFF OFF OFF
OFF OFF OFF
OFF OFF OFF
ON ON
OFF
OFF OFF
OFF OFF OFF
OFF OFF OFF
OFF OFF OFF
OFF OFF OFF
ON OFF OFF
OFF ON ON
OFF ON ON
OFF OFF OFF
ON OFF OFF
OFF ON ON