Midea MHC - V18W/D2RN8 - Page 79

M thermal Mono
78 202005
Midea M thermal Mono Engineering Data Book
P6
Inverter module protection
Pb
Anti-freeze mode protection
Pd
High temperature protection of refrigerant outlet temp. of condenser
PP
Water inlet temperature is higher than water outlet in heating mode
L0
DC compressor inverter module fault
L1
DC bus low voltage protection (from inverter module mostly when compressor running)
L2
DC bus high voltage protection from DC driver
L4
MCE fault
L5
Zero speed protection
L7
Phase sequence fault
L8
Compressor frequency variation greater than 15Hz within 1 second protection
L9
Actual compressor frequency differs from target frequency by more than 15Hz protection
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