44
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
-10 0 10
Temperature (
o
C)
Resistance (kΩ)
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 (kΩ)
80 100 120 140
DC FM
CN-MTR1
1 Feedback output (0 - 5Vdc pulse)
2 5Vdc
3GND
CN-MTR2 (Measure winding resistance / voltage)
1W
3U
5V
~80 ohm / 15Vdc
~80 ohm / 15Vdc
~80 ohm / 15Vdc
CN-TH1 (Measure resistance)
1-2
1-2
Outdoor air intake sensor (15KΩ ±5% at 25°C)
3-4 Pipe temp sensor (4.96KΩ ±5% at 25°C)
CN-TANK (Measure resistance)
1-3 Comp temp sensor (50KΩ ±5% at 25°C)
24Vdc
CN-HOT
Measure resistance of v-coil CN-HOT
1-3 18Ω at 20°C
Measure voltage on PCB
during 4-way valve ON 1.8Vdc - 15Vdc
OFF -
CN-PWR
Measure voltage
1-3 24Vdc
CN-DEMAND
Measure voltage
P & N, N-U,
N-V, N-W
280Vdc - 340Vdc
IPM (Input / Output)
Measure voltage
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