48
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10 0 10
Temperature (
o
C)
Resistance (k )
20 30 40 50
1
2
1
2
Outdoor Air Sensor
Outdoor Heat Exchanger
Sensor
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
20 40 60
Temperature (
o
C)
Resistance (k )
80 100 120 140
Outdoor air intake sensor (15K ±5% at 25°C)
Pipe temp sensor (4.96K ±5% at 25°C)
Comp temp sensor (50K ±5% at 25°C)
1.5K at 20°C
CN-TH1 (Measure resistance)
1-2
3-4
CN-TANK (Measure resistance)
1-3
CN-HOT
Measure resistance of v-coil CN-HOT
1-3
46 / 13Vdc
CN-EV (Measure resistance / voltage)
1-6
5Vdc
CN-COM
Measure voltage
1-4
24Vdc
CN-PWR
Measure voltage
1-2
24Vdc
CN-DEMAND
Measure voltage
1-3
280Vdc - 340Vdc
IPM (Input / Output)
Measure voltage
P & N, N-U,
N-V, N-W
Measure voltage on PCB
during 4-way valve ON 230Vac
OFF -
CN-FM
1 Vdc 280Vdc - 340Vdc
2 -
3 -
4 GND 0
5 Vcc 15Vdc
6 FG feedback output pulses 0-15Vdc
7 Vsp speed control input voltage
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