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Outdoor Unit
 Pressure sensor characteristics
• Input/output wiring summary
• Output voltage vs. pressure
Indoor Unit
 Temperature sensor characteristics
Pin No.
High pressure side (Pd) Low pressure side (Ps)
Input/output name Lead wire color Lead wire colorInput/output name
OUTPUT
—
GND
+5V
1
2
3
4
White
—
Black
Red
—
White
Black
Red
—
OUTPUT
GND
+5V
Input/output name Input/output name
0.5~4.3V
0~54 psi ( 0~3.73MPa )
0.5~3.5V
0~141 psi ( 0~0.98 MPa )
0 540
(4.41)
740
(5.1)
0.5
4.3
5
0 142
(0.98)
213
(1.47)
740
(5.1)
0.5
3.5
5
541
(3.73)
High pressure-side output voltage (V)
Low pressure-side output voltage (V)
Pressure [psi (MPa)] Pressure [psi (MPa)]
Indoor TA sensor
Resistance
[kΩ]
Temperature [°F(°C)]
140
(60)
50
(10)
68
(20)
86
(30)
104
(40)
122
(50)
20
30
10
0
32 (0)
41 (5)
50 (10)
59 (15)
68 (20)
77 (25)
86 (30)
95 (35)
104 (40)
113 (45)
122 (50)
131 (55)
140 (60)
33.8
26.1
20.4
16.0
12.6
10.0
8.0
6.4
5.2
4.2
3.5
2.8
2.3
Resistance  [kΩ]
Temperature [˚F (˚C)]