32
Fig. 13 —Legend Fig. 14 —DSP1 and DSP2 Display Content
NOTES: Component in dashed line is optional
CODE NAME
XT1-XT2 Terminal Block
XS1-XS2 Plug
XP1-XP2 Jack
H-PRO 1-4 High Pressure ON/OFF Switch
H-YL1 High Pressure Sensor
L -YL1 Low Pressure Sensor
TP1-PRO, TP2-PRO
Discharge Temperature ON/OFF
Switch
T3A, T3C, T3D, T3E, T5, T6, T7, T9
Condenser or Evaporator
Temperature Sensor
T4
Outdoor Ambient Temperature
Sensor
T7C1-T7C2 Discharge Temperature Sensor
CT1-3, IC17 Current Sensor
ST1, ST2 4-Way Valve
SV1-SV7 Solenoid Valve
HEAT (1-3) Crankcase Heater
Tf1, Tf2 Heat Sink Temperature
TRANS1 Power Transformer
DISPLAY MEANING
0E1 Phase Loss Error
0E2 Comm. Error with MDC and Indoor Unit
0E4 T3 or T4 Temperature Sensor Error
0E5 Voltage Protection
0H0/20H0 Comm. Error Between Main Board and Compressor INV. Board
0H1 Comm. Error Between Chip IC55 and IC33 on Main Board
0Ly/20Ly Compressor Inverter module protection (0≤y≤9)
0H4/20H4 3 times of 0Ly protection in 60 minutes
0P2 Low Pressure Protection
0H5 5 Times of 0P2 Protection in 100 Minutes
0P4 Discharge Temperature Protection
0H6 3 Times of 0P4 Protection in 60 Minutes
0H7 Quantity of Indoor Units do not Match
0H8 High Pressure Sensor Error
0P9 DC Fan Protection
0H9 10 Times of 0P9 Protection in 120 Minutes
0Hb Low Pressure Sensor Error
0Hc
The setting of power dial switch do not match the model of
outdoor unit
0P1
High Pressure Protection or Discharge Temperature Protection or
Ground Fault Problem
0P3 Compressor Current Protection
0P5 High Condenser Temperature Protection
0PL Inverter Module Temperature Protection
0C7 3 times of 0PL protection in 100 minutes
0PP Refrigerant overcharge
0F0 4 times of 0PP protection in 200 minutes
0F4 T6 Temperature Sensor Error
0F5 T7 Temperature Sensor Error
0F8 MDC Error
AtL
Ambient temperature limitation (Outside ambient
temperature(T4) is beyond the range that outdoor unit can run)
dF Defrosting
d0 Oil Return
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