SMC Networks HRZ002-WS-F - Troubleshooting

HRX-OM-X010
Chapter 6 Error Message and Troubleshooting
6.2 Troubleshooting HRZ Series
6-2
6.2 Troubleshooting
The procedure for error recovery varies with alarm types.

Alarm Code.01 to 21,24,25,28,29,32:
Eliminate the error cause. Press the [RESET] key on the operation display panel
or power cycle the main breaker to enable error recovery to take effect.
*Alarm code 28 is an alarm only for HRZ010-W*S-F.

Alarm Code.22:
Eliminate the error cause, and power cycle the main breaker to enable error
recovery to take effect.

Alarm Code.23:
Automatic error recovery is implemented upon elimination of the error.

Alarm Code.24:
This is an alarm for accessories (optional).
No alarm of this type is issued if the system is outfitted with no accessories.
Table 6-1 Troubleshooting (1/3)
Code
Error message
System
condition
Cause
Remedies
01
Water Leak
Detect FLT
Stop
The fluid is pooled at the base of
this system.
Check for fluid leak.
03
RFGT High Press
FLT
Stop
The pressure of the refirigerant
circuit exceeded the specified
value.
<Specified value>
HRZ***-WS/W1S/W2S-F:
3.0MPa
HRZ008-L/L1-F:2.5MPa
Check that facility water is being
supplied to this system.
04
CPRSR Overheat
FLT
Stop
The temperature in the
compressor was excessive.
<Specified value>
HRZ***-WS/W1S/W2S-F:
110 deg C
HRZ008-L/L1-F:110 deg C
Check that facility water is being
supplied to this system.
05
Reservoir Low
Level FLT
Stop
An insufficient amount of the
circulating fluid is observed in
the tank.
Replenish the circulating fluid.
06
Reservoir Low
Level WRN
Continued
An insufficient amount of the
circulating fluid is observed in
the tank.
Replenish the circulating fluid.
07
Reservoir High
Level WRN
Continued
An excessive amount of the
circulating fluid is observed in
the tank.
Drain the circulating fluid.
08
Temp. Fuse
Cutout FLT
Stop
The circulating fluid tank was
raised in temperature.
<Specified value>
Themal fuse cutout
temperature : 98 deg C
Check the load specification.
Replacement of the thermal fuse
is required.
Call the supplier for service.
09
Reservoir High
Temp. FLT
Stop
The temperature of the
circulating fluid exceeded the
specified value.
<Specified value>
HRZ***-WS/W1S-F : 95 deg C
HRZ***-W2S-F : 65 deg C
HRZ008-L/L1-F : 50 deg C
Check the load specification.