Daikin LRLEQ5AY1(E) - Page 140

SiENBE28-901 Troubleshooting
Air Cooled Refrigeration Condensing Unit 139
[Check 10] Voltage Characteristics of Pressure Sensor
PH = 1.38V
H
–0.69
PL = 0.57V
L
–0.28
PH : High pressure (MPa)
PL : Low pressure (MPa)
V
H
: Output voltage [High pressure side] V
DC
V
L
: Output voltage [Low pressure side] V
DC
Pressure detected
P
H
, P
L
(kg/cm
2
)MPa
51.0 5.0
45.9
4.5
40.8 4.0
35.7 3.5
30.6 3.0
25.5 2.5
20.4 2.0
15.3 1.5
10.2 1.0
5.1 0.5
-5.1 -0.5
0
High pressure (P
H)
(1.7MPa) Low pressure (P
L)
-0.5 0 0.5 1 1.5 2 2.5 3 3.5 4
V
DC
Output voltage (VH, VL)