<Thermistor Characteristic graph>
< Thermistor for lower temperature >
Thermistor for
Room temparature thermistor(TH21)
50
lower temperature Liquid pipe thermistor(TH22)
Gas pipe temparature thermistor(TH23) Drain sensor(DS)
Thermistor R0=15kΩ ± 3%
Fixed number of B=3480kΩ ± 2%
Rt=15exp { 3480( | 1 |
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| 1 | ) } | |
273+t | 273 | ||||||
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0˚C 32˚F 15kΩ
10˚C 50˚F 9.6kΩ
20˚C 68˚F 6.3kΩ
25˚C 77˚F 5.2kΩ
30˚C 86˚F 4.3kΩ
40˚C 104˚F 3.0kΩ
Resistance (k Ω )
40
30
20
10
0
Temperature
Linear expansion valve
1Operation summary of the linear expansion valve.
•Linear expansion valve open/close through stepping motor after receiving the pulse signal from the indoor controller board.
•Valve position can be changed in proportion to the number of pulse signal.
<Connection between the indoor controller board and the linear expasion valve>
Linear expansion valve
4 Blue
M 6 Brown
Yellow
52
1
3
White Red Orange
Controller board
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| DC12V |
| Brown | 6 |
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| Red | 5 | Drive circuit |
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| |
ø4 | Blue | 4 | ø4 |
ø3 | Orange | 3 | ø3 |
ø2 | Yellow | 2 | ø2 |
ø1 | White | 1 | ø1 |
| Connector(CN60) |
|
|
14