Au48Nfibia Pcb Ports Name And Functions - Haier H-MRV Series Service Manual

AU48NFIBIA PCB ports name and functions

Ports
R, S, T Power supply ports
U, V, W Compressor ports
E Grounded port
N Neutral wire port
L1, L2 Reactance port
CN102 Current transducer port
CN211, CN212 Fan motor port
CN205 Water pump port
CN206 Electric heater port
CN207 Solenoid valve port
CN208 Solenoid valve port
CN209 Four-way valve port
CN210 Oxygen generator port
CN303 Testing board port
CN304 Communication port
Fan motor port for dispersing
CN307, CN308
heat
CN310 EEV port
CN311 Radiator temp. sensor port
Mid-condenser
CN312
port
CN313 Defrosting temp. sensor port
CN314 Ambient temp. sensor port
CN315 Suction temp. sensor port
CN316 Discharging temp. sensor port
CN317 Low pressure switch port
CN318 High pressure switch port
Ports name
temp. sensor
-148-
>a__WcU[S^ <[c >a`V[e[a`Wc
Wiring method
To power of 3 PH, 380V, 50Hz
To motor (pay attention to phase sequence)
Grounding (less than 10Ω;more thanφ1.6mm)
If 3 phase, it is connected to neutral wire; if 1
phase, it is blank.
To wire of reactance (non-polar)
To current transducer
To fan motor
To water pump (be spare)
To electric heater
To solenoid valve
To solenoid valve
To four-way valve
To oxygen generator (blank temporarily)
To testing board. Used to modify, check data for
after sale personnel.
To C1, C2 of communication block
To fan motor for dispersing heat (be spare)
To outdoor electronic expansion valve
To radiator temp. sensor (blank temporarily)
To mid-condenser temp. sensor
To defrosting temp. sensor
To ambient temp. sensor
To compressor suction temp. sensor
To discharging temp. sensor
To low pressure switch
To high pressure switch