Mitsubishi Electric PQHY-P72TYHMU-A Service Handbook page 163

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[ VII Control ]

Emergency operation pattern (2 heat source units)

Emergency operation pattern (3 heat source units)

Maximum total capacity

of indoor units (Note 1)

(Note 1) If an attempt is made to put into operation a group of indoor units whose total capacity exceeds the maximum allowable capacity,

some of the indoor units will go into the same condition as Thermo-OFF.

(3) Ending the emergency operation

When communication is restored, the emergency mode is cancelled, and the units go into the normal operation mode.

Permitted Permitted

Permitted Permitted

Capacity that matches

Maximum total capacity

the total capacity of the

of indoor units (Note 1)

operable heat source

Capacity that matches the total capacity of the operable heat source units

OC, OS1 failure

OC, OS2 failure

OS1, OS2 failure

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