HRX-MM-N007
Chapter 3 Alarm Indication and Troubleshooting
3.3 Troubleshooting
HRS Series
3-90
AL18: Compressor overload [For water-cooled type]
<Detection method> This alarm goes off when the difference between the pressure detected by the
refrigerant circuit pressure sensor for high pressure and the pressure detected by
the refrigerant circuit pressure sensor for low pressure is 0.1 MPa or less.
Compressor over load
(for water-cooled type)
AL18
Are other alarms being
generated simultaneously?
Y
N
Check the troubleshooting
that is corresponding to the
alarm number that is being
generated.
1.
Check the power supply.
Normal
Error
Supply the correct power.
2.
Check the compressor
operation.
10.
Check the compressor.
8.
Check the main board.
9.
Check the power board.
Please contact SMC or distributor.
Normal
Normal
Normal
Normal
Error
Error
Error
Error
Is facility water
temperature higher
than 40
o
C?
6.
Is flow rate of the facility
water correct?
3.
Check the facility
water system.
5.
Is facility water
contaminated?
This system cannot be used.
Y
Y
Y
N
N
N
Y
N
7.
Is water-cooled condenser
contaminated?
4.
Is external load out of the
specification range?
Y
Supply clean facility water.
N
N
Y
Is piping connection
for the facility water inlet/outlet
correct?
N
Y
Check for the correct piping
connections.
Replace the main board.
See section "4.5.16
Replacement of main board
& communication board".
Replace the power board.
See section "4.5.17
Replacement of power
board".
Compressor, which is a part
of the refrigerant circuit,
needs to be replaced. Only a
specialized operator is
allowed to handle the
refrigerant circuit.
See document No. HRX-MM-
Q013 for replacement.
Water cooled condenser,
which is a part of the
refrigerant circuit, needs to
be replaced. Only a
specialized operator is
allowed to handle the
refrigerant circuit.
See document No. HRX-MM-
Q029 for replacement.
Содержание HRS012-A*-10-*
Страница 16: ...HRX MM N007 Chapter 2 Name of Parts 2 2 Component Parts HRS Series 2 4...
Страница 136: ...HRX MM N007 Chapter 3 Alarm Indication and Troubleshooting 3 3 Troubleshooting HRS Series 3 120...
Страница 200: ...HRX MM N007 Chapter 4 Service Procedure 4 5 Replacement Procedure HRS Series 4 64...
Страница 220: ...HRX MM N007 Chapter 6 Documents 6 4 Flow chart HRS Series 6 8...