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Maintenance
Error history display
f Press and hold K3 and K6 for 3 seconds to enter the
view mode.
f Press K3 to change view mode in order of the table.
f Cancelling view mode display
- Press and hold K3 for 3 seconds.
SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 Remarks
Currently
E
1
occurred
Currently
E
2
occurred
Currently
E
3
occurred
Currently
E
4
occurred
Currently
E
5
occurred
air tightness test and vacuuming
air tightness test
f Use tools for R-410A to prevent the inflow of foreign
substances and resist against the internal pressure.
f Do not remove the core of charging port.
f Use nitrogen gas for air tightness test.
High pressure side
Charging port
❶
80
English
DB68-05916A-09_IM_DVM Chiller Outdoor_EU_EN_.indd 80
4
1
0
ex) E410
9
0
7
ex) E907
9
1
1
ex) E911
9
0
7
ex) E907
9
1
1
ex) E911
Manifold gage
Low pressure side
❷
Nitrogen gas
❶ High pressure when cooling/Low pressure when
heating
❷ Low pressure when cooling/heating
apply nitrogen gas to the each charging port at
pressure of 4.1 MPa
• Connect the manifold gauge to each charging
port. If you apply pressure at more than 4.1
MPa, pipes may get damaged. Apply pressure
with pressure regulator and pay attention to
the pressure of the nitrogen.
Keep it for minimum 24 hours to check if
pressure drops.
• After applying Nitrogen gas, check there's any
change of pressure, using a pressure regulator.
If the pressure drops, check for gas leakage.
• If the pressure is changed, apply soap water to
check for leakage and check the pressure of the
nitrogen gas again.
Maintain 1.0 MPa of the pressure before
performing vacuum drying and check for further
gas leakage.
• After checking the first gas leakage, maintain
1.0 MPa to check for further gas leakage.
CaUtIon
• When charging nitrogen gas, use charging port on
high pressure side and low pressure side.
• If the pipe is filled in a short time with a highly
excessive pressure of Nitrogen gas, the pipes
may get damaged. Make sure to use a regulator
to prevent the high pressure Nitrogen gas, over
4.1 MPa, from entering into the pipe.
2022-05-02 오전 9:00:16
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