SMC Networks HRSH090 Series, Руководство по эксплуатации

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HRX-OM-R026
Chapter 7 Alarm indication and trouble shooting
HRSH Series 7.3 Troubleshooting
7-5
Table 7-1 Alarm code list and Troubleshooting (1/3)
Code Alarm name
Alarm
operation
(default
setting)
Cause / Remedy
(Press the reset key after eliminating the cause.)
AL01 Low level in tank A.RUN
The fluid level of the level indicator has fallen. Fill the
circulating fluid.
AL02
High circulating fluid
discharge temp.
A.STP
･
Check that the ambient temperature, facility water
specifications and heat load are within the specified
ranges.
･
Wait until the circulating fluid temperature lowers.
AL03
Circulating fluid
discharge temp. rise
A.RUN
AL04
Circulating fluid
discharge temp. drop
A.RUN
Check that the filled circulating fluid temperature is
within the specified range.
AL05
High circulating fluid
return temp.
A.STP
･
Check that the circulating fluid flows.
･
Check that the heat load is within the specified
range.
AL06
High circulating fluid
discharge pressure
A.STP
Check that there is no bend, collapse and clog on/in
the external piping.
AL07
Abnormal pump
operation
A.STP
The pump does not operate. Check that the pump
thermal operation switch is operated.
AL08
Circulating fluid
discharge pressure rise
A.RUN
Check that there is no bend, collapse and clog on/in
the external piping.
In case of displaying EEEE on the PI display of the
main display and check monitor menu, the pressure
sensor of the circulating fluid circuit has a
malfunction. Ask the service.
AL09
Circulating fluid
discharge pressure
drop
A.RUN
Restart and check if the pump runs.
In case of displaying EEEE on the PI display of the
main display and check monitor menu, the pressure
sensor of the circulating fluid circuit has a
malfunction. Ask the service.
AL10
High compressor
suction temp.
P.RUN
･
Check the returned circulating fluid temperature.
･
Check that the heat load is within the specified
range.
AL11
Low compressor
suction temp.
P.RUN
･
Check that the circulating fluid flows.
･
Use 15% ethylene glycol aqueous solution with the
set temperature lower than 10 deg. C.
AL12
Low super heat
temperature
P.RUN
AL13
High compressor
discharge pressure
P.RUN
Check that the ambient temperature, facility water
specifications and heat load are within the specified
ranges.
AL15
Refrigerant circuit
pressure (high pressure
side) drop
P.RUN
Malfunction of the refrigeration circuit occurred.
Ask for the service.
AL16
Refrigerant circuit
pressure (low pressure
side) rise
P.RUN
Check that the ambient temperature, facility water
specifications and heat load are within the specified
ranges.
AL17
Refrigerant circuit
pressure (low pressure
side) drop
P.RUN
･
Check that the circulating fluid flows higher than the
minimum operating flow rate.
･
It is possible that refrigerant is leaking. Ask for the service.
AL18
Compressor running
failure
P.RUN
Restart and check if the compressor runs after
leaving for 10 minutes.