Sunrain YC-050TA1 - Adjusting and Initial Operation

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E31
Water pressure switch fault
E32
Heating water temp. too high protection
E35
Compressor 1 high current protection
E36
Compressor 2 high current protection
E37
High temp. difference protection(water inlet and outlet)
E42
Cooling coil temp. sensor 1 fault
E43
Cooling coil temp. sensor 2 fault
E44
Low ambient temp. protection
E47
Heat recovery heat ex-changer 1 inlet temp. sensor fault
E48
Heat recovery heat ex-changer 2 inlet temp. sensor fault
E49
Heat recovery heat ex-changer 1 outlet temp. sensor fault
E50
Heat recovery heat ex-changer 2 outlet temp. sensor fault
E55
Communication fault (EEV control panel-PCB)
E56
Suction temp. sensor 3 fault
E57
Suction temp. sensor 4 fault
E58
Outdoor coil temp. sensor 3 fault
E59
Outdoor coil temp. sensor 4 fault
E60
Exhaust temp. sensor 3 fault
E61
Exhaust temp. sensor 4 fault
E62
Cooling coil temp. sensor 3 fault
E63
Cooling coil temp. sensor 4 fault
E64
High exhaust temp. protection 3
E65
High exhaust temp. protection 4
E66
Compressor 3 high current protection
E67
Compressor 4 high current protection
E68
High pressure switch 3 fault
E69
High pressure switch 4 fault
E70
Low pressure switch 3 fault
E71
Low pressure switch 4 fault
E72
Heat recovery heat ex-changer 3 inlet temp. sensor fault
E73
Heat recovery heat ex-changer 4 inlet temp. sensor fault
E74
Heat recovery heat ex-changer 3 outlet temp. sensor fault
E75
Heat recovery heat ex-changer 4 outlet temp. sensor fault
E80
Power supply fault ( 3 phases system, dial switch is 1 phase setting)
9. Adjusting and Initial operation
9.1 Attention
● Within 12 hours after running, please connect the circuit breaker, and make the crankcase
heater be preheated.
● Open the valve of water system, and the valve of assistant tank, inject water into the system,