Daikin VRV IV+ Service Manual page 334

3 | Components
Service manual
334
Prerequisite: Remove the required plate work, see
1 Turn ON the power of the unit.
2 Connect a pressure gauge to the refrigerant charge port. Read the pressure.
3 Using the graphic below, determine the expected sensor output voltage based
on the pressure obtained in the previous step.
2
1.5
1
a
0.5
0
-0.5
-0.5 0 0.5
a Detected pressure (MPa)
b Output voltage (V)
V (DC)
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
1 1.5 2 2.5 3
b
Detected pressure (MPa)
0.00
0.06
0.12
0.18
0.23
0.29
0.35
0.40
0.46
0.52
0.57
0.63
0.69
0.75
0.80
0.86
0.92
0.97
1.03
1.09
1.15
1.20
1.26
4
"3.15 Plate work" [ 315].
3.5 4
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05