Mitsubishi Electric CITY MULTI PUHY-400YMF-C Service Handbook page 108

2) Terminating Emergency Response Operation Mode
(Termination Conditions)
When one of the following conditions is met, emergency operation mode is terminated.
1 Cumulative compressor operation time in the cooling mode exceeds 4 hours.
2 Cumulative compressor operation time in the heating mode exceeds 2 hours.
3 Emergency operation mode trouble detected.
(Control During and After Termination)
• During and after termination, the compressor will be stopped and a repeat error code will be flashed on the
remote controller.
• If there is a repeat trouble reset during termination, retry operations will start by repeating steps 1 to 4 in 1).
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