2. Sensor characteristic
Model Name Code Sub-part code characteristic 
Indoor ambient temp. 
sensor 
001A3900159 
 
001A3900003 
R25=23KΩ±2.5% 
B25/50=4200K±3%
Indoor coil temp. sensor 
001A3900006 
 
001A3900004 
R25=10KΩ±3% 
B25/50=3700K±3%
HBU-18CF03 
HBU-18HF03 
HBU-28CF03 
HBU-28HF03 
Outdoor defrost sensor  0010401922  001A3900004 
R25=10KΩ±3% 
B25/50=3700K±3%
Indoor coil temp. sensor  001A3800128  001A3900004 
R25=10KΩ±3% 
B25/50=3700K±3%
ambient temp. sensor  /  /  / 
HDU-18CF03 
HDU-18HF03 
HDU-28CF03 
HDU-28HF03 
HDU-42CF03/H 
HDU-42HF03/H 
Outdoor defrost sensor  0010401922  001A3900004 
R25=10KΩ±3% 
B25/50=3700K±3%
Indoor ambient temp. 
sensor 
0010451323 001A3900003 
R25=23KΩ±2.5% 
B25/50=4200K±3%
HBU-28CH03 
Indoor coil temp. sensor  001A3900006  001A3900004 
R25=10KΩ±3% 
B25/50=3700K±3%
Indoor ambient temp. 
sensor 
001A3800127 001A3900003 
R25=23KΩ±2.5% 
B25/50=4200K±3%
Indoor coil temp. sensor  0010401922  001A3900004 
R25=10KΩ±3% 
B25/50=3700K±3%
HPU-42CF03 
HPU-42HF03  
Outdoor defrost sensor  0010401922  001A3900004 
R25=10KΩ±3% 
B25/50=3700K±3%
Indoor ambient temp. 
sensor 
0010451323 001A3900003 
R25=23KΩ±2.5% 
B25/50=4200K±3%
Indoor coil temp. sensor  001A3900006  001A3900004 
R25=10KΩ±3% 
B25/50=3700K±3%
HBU-42CF03 
HBU-42HF03 
Outdoor defrost sensor  0010401922  001A3900004 
R25=10KΩ±3% 
B25/50=3700K±3%
Indoor ambient temp. 
sensor 
001A3900159 001A3900003 
R25=23KΩ±2.5% 
B25/50=4200K±3%
Indoor coil temp. sensor  001A3900006  001A3900004 
R25=10KΩ±3% 
B25/50=3700K±3%
Outdoor compressor vent 
sensor 
0010450398 
001A3800096 
R80=50KΩ±3% 
B25/80=4450K±3%
Outdoor defrost sensor  0010451314  001A3800091 
R25=5KΩ±3% 
B25/50=3700K±3%
HBU-42CI03 
HBU-42HI03 
HBU-42CH03 
Outdoor ambient temp. 
sensor 
001A3900110 001A3800090 
R25=5KΩ±3% 
B25/50=4200K±3%
Sensor Characteristic