SMC Networks HRS012-A-10 Series User Manual

HRX-MM-N007
Chapter 3 Alarm Indication and Troubleshooting
HRS Series 3.3 Troubleshooting
3-85
AL18: Compressor overload [For air-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.
3.
Is ambient temperature
out of the specification
range?
6.
Is the dustproof filter
too dusty?
4.
Is external load out of
specification range?
5.
Is there enough
ventilation space?
Y
Y
Y
N
N
N
Compressor over load
[Air-cooled type]
AL18
Y
This system cannot be used.
Clean the dustproof filter.
Secure enough maintenance
space specified in the
Operation Manual.
Improve the environment of
installation space.
N
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.
9.
Check the compressor.
7.
Check the main board.
8.
Check the power board.
Please contact SMC or distributor.
Normal
Normal
Normal
Normal
Error
Error
Error
Error
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-
Q025 for replacement.

SMC Networks HRS012-A-10 Series Specifications

General

Brand	SMC Networks
Model	HRS012-A-10 Series
Category	Chiller
Language	English