Daikin VRV III RXYQ5-54PY1 Service Manual page 304

Si34-601A
Troubleshooting
Troubleshooting
A
Check the
transmission
wiring between central
equipment for any broken
wire. For details, refer to
information in the "Procedure
for checking broken
wires" section.
(Refer P.304)
Normal
Check the
transmission
wiring with the master
unit central equipment for
any broken wire. For details,
refer to information in the
"Procedure for checking
broken wires"
section.
(Refer P.304)
Normal
Has the
master unit central
setting connector been
connected?
YES
Disconnect the transmission
wiring of the master unit
central equipment, and then
check the voltage between the
transmission terminals (F1 and
F2) of the master unit
transmission equipment using
a multiple meter.
Is the
voltage between
the terminals F1 (+)
and F2 (-) in the range of
15.2 to 17.6
VDC?
YES
Troubleshooting by Indication on the Remote Controller
Abnormal
Abnormal
NO
NO
Correct the wiring.
Correct the wiring.
Correct the connection of the
connector.
Replace the central
equipment.
Central equipment: Normal
It is supposed that the
malfunction results from
external factors (e.g. noises)
from other equipment.
293