Daikin VRV IV+ Service Manual page 331

REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
V (DC)
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
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
3.6
4 Measure the voltage on X32A: pins 1–3 (= refrigerant pressure sensor output
signal).
5 Check that the measured voltage is in line with the expected voltage through
the read refrigerant pressure.
INFORMATION
Connect the service monitoring tool to the unit or use field settings mode 1‑42 (see
"6.9 Field settings" [
If the measured output voltage value matches the voltage determined through the
measured pressure, but the pressure via the service monitoring tool is NOT correct,
replace the main PCB.
Detected pressure MPa
0.98
1.12
1.26
1.40
1.54
1.68
1.82
1.96
2.10
2.24
2.38
2.52
2.66
2.80
2.94
3.08
3.22
3.36
3.50
3.64
3.78
3.92
4.06
4.20
4.34
4 455]) to monitor the high pressure.
3 Components
|
Service manual
331