Daikin 10 - Troubleshooting Flowchart

112
7
Troubleshooting
5
Troubleshooting
Diagnosis Countermeasures
1
Applicable Models
AKZ**A (All series)
2
Methods of Malfunction Detection
Detect decrease in pump flow
by difference in temperature of
the oil inlet and that of the oil
outlet (Th-4 - Th-2).
3
Malfunction Decision Conditions
Difference in temperature of the
oil inlet and that of the oil outlet
is as shown below.
AKZ14A＞5℃
AKZ32A＞6℃
AKZ43A＞11℃
AKZ56A＞9℃
AKZ90A＞14℃
4
Supposed Causes
1Low tank liquid level
1Clog of suction filter
1Increase in resistance in oil
circuit (closed valve, etc.)
1Viscous oil
Low Oil Flow
YES
Select such oil that the
oil viscosity is 200mm
2
/s
or less.
Clean the suction filter.
Decrease the pressure
loss in piping.
Open the valve.
Increase the piping
diameter.
Reconfirmation of
model selection
method.
(Contact the customer.)
The suction
filter is clogged.
The
viscosity is more than
200mm
2
/s or more when the oil
temperature is
decreased.
Pressure loss
in the oil circuit is excessive.
(0.5MPa or more)
YES
YES
NO
NO
NO
Replace the oil pump
(M1P).
(See page 127/142)
The oil pump
is relieved and the oil flow
is decreased.
NO
YES
NO
Refill the tank with the
correct amount of oil.
Is the tank
filled with the correct
amount of oil?
YES
3-5. Troubleshooting Flowchart
Control panel display
A5
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00_PB00540A_M10.indb 112 2023/08/09 12:59:08