Thermistor; Thermistor Characteristic Graph; Liner Expansion Valve - Mitsubishi Electric CITY MULTI Series Technical & Service Manual

8-1-1. Thermistor

<Thermistor characteristic graph>
Thermistor for
lower temperature
Thermistor R
0
Rt=15exp { 3480(
273+(t-32)/1.8

8-1-2. Liner expansion valve

Operation summary of the linear expansion valve
<Connection between the indoor controller board and the linear expansion valve>
Linear expansion valve
Blue
4
Brown
M 6
Yellow
2
5
1
3
Red
White
Orange
OCH516B
Room temperature detection thermistor (TH21)
Pipe temperature detection thermistor/liquid (TH22)
Pipe temperature detection thermistor/gas (TH23)
1 1
) }
273
Controller board
12 V DC
6
Brown
5
Red
4
Blue
3
Orange
2
Yellow
1
White
Connector(CN60)
23 23
< Thermistor for lower temperature >
50
40
30
20
10
0
-20 0 20 40 60 80 100
Temperature (°F)
Drive circuit
120