Daikin VRV III, Руководство по обслуживанию, Страница: 436 / 567

SiUS34-801A_b Troubleshooting by Indication on the Remote Controller
Troubleshooting 421
*1, *2; See the chart and footnote on P422
*3, *4; See the chart and footnote on P423
(V2822)
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Replace the high pressure
sensor.
Connect the high pressure
sensor and turn on again.
YES
A
NO
NO
YES
YES
The high
pressure sensor
is connected to X32A of
outdoor unit PC
board (A1P).
Connect low pressure sensor
property and restart system.
YES
NO
The low
pressure sensor is
connected to X31A (blue)
of outdoor unit PC
board (A1P).
The
relationship
between the
*1 VH and high
pressure is normal
(see *2) when voltage is
measured between X32A
pins (1) and (3) of
outdoor unit
PC board
(A1P)
(see *1).
Replace the low pressure
sensor.
NO
The
relationship
between the
*3 VH and low
pressure is normal
(see *4) when voltage
is measured between X31A
pins (2) and
(3) of outdoor
unit PC board
(A1P)
(see *3).
Replace the outdoor unit PC
Board (A1P).
YES
Caution