SMC Networks HRR012-A*-20 Series User Manual

HRX-OM-W002-A
Chapter 7 Alarm Notification and Troubleshooting
HRR Series 7.3 Troubleshooting
7-5
Table 7-1 Alarm code list and Troubleshooting
* 1 Selectable from OFF / WRN / FLT * 2 Selectable from WRN / FLT
* 3 Only air-cooled type can be set
* 4 Option DM 【With electric conductivity control function , DI water (pure water) piping】 only. When
entering the range, the alarm is released automatically.
Upper stage
（White）
Lower stage
（Green）
AL01 Low level in tank FLT AL01 LOW⇒LEVEL⇒FLT
AL02 Low level in tank WRN AL02 LOW⇒LEVE⇒WRN
AL04 Water leakage
WRN
1
AL04 WATER ⇒ LEAK
Circulating fluid leakage inside the unit is suspected.
AL09
Circulating fluid
discharge pressure rise
FLT
*2
AL09 HIGH ⇒ PRESS
AL10 Flow rate decreased
WRN
*1
AL10 LOW⇒FLOW⇒WRN
AL11
Ambient temperature is
out of the range
*3
OFF
*1
AL11 AMB⇒TEMP⇒OUT
Check the installation environment. Clean the dust filter of the
ventilation.
AL12
Electric conductivity
increase
*4
WRN AL12 DI ⇒ ERROR Replace DI filter.
AL13 NOT TEMP READY
OFF
*1
AL13 TEMP⇒READY⇒ERROR
AL14
Circulating fluid
temperature increase
OFF
*1
AL14 TEMP⇒OUT.HI
AL15
Circulating fluid
temperature decrease
OFF
*1
AL15 TEMP⇒OUT.LO
AL17 Low flow rate FLT AL17 LOW⇒FLOW⇒FLT
Displayed flow rate: 3LPM or less, piping is thin, external valve is
closed, pinching or blockage of the piping or clogging of the filter.
AL18
High circulating fluid
discharge temp.
FLT AL18 TEMP ⇒ FLT
Discharge temp.: 45oC or higher. Overload, cooling failure,
insufficient flow rate, etc. Increase the flow rate through the
chiller.
(Adjust the by-pass valve)
AL19
High circulating fluid
return temp.
FLT AL19 RET⇒TEMP⇒FLT
Return temp.: 45oC or higher. Insufficient chiller flow rate,
overload, etc. Increase the flow rate through the chiller.
(Adjust the by-pass valve)
AL21
High circulating fluid
discharge pressure
FLT
AL21 HIGH⇒PRESS⇒FLT
Displayed pressure: 0.5MPa or higher. Connect piping so that
the pressure is 0.5MPa or less. Adjust the bypass valve.
AL24 Memory error
FLT
AL24 MEM ⇒ ERROR
Turn off the power supply switch and restart.
If the error occurs again, ask for service.
AL25 Contact input 1
FLT
*1
AL25 INP1 ⇒ ERROR
AL26 signal detection
FLT
*1
AL26 INP2 ⇒ ERROR
AL27 Contact input 2 FLT AL27 FORCE ⇒ STOP
Isolated operation of the pump is stopped (press “RUN/STOP”
key for 5 seconds).
AL28 signal detection
OFF
*1
AL28 MANT ⇒ ALARM
Notice for maintenance, perform maintenance for part for which
alarm is generated.
AL29 Forced stop
WRN
*1
AL29 COMM ⇒ ERROR
No request message from the host computer.
Try to send the request message again.
AL30 Notice for maintenance FLT AL30 REF⇒ERROR⇒0000 Error occurred in the refrigerated circuit. Ask for service.
AL31 Communication error FLT AL31 SENS⇒ERROR⇒0000
An error occurred in a sensor. Ask for service.
AL32 Compressor circuit error FLT AL32 CTRL⇒ERROR⇒0000
An error occurred in the controller. Ask for service.
Piping resistance increased. Check the opening of the valve,
pinching or blockage of the piping or clogging of the filter.
Overloaded, cooling failure, insufficient circulating fluid flow rate,
large fluctuation of the heat load, etc.
Increase the flow rate through the chiller. (Adjust the by-pass
valve)
Contact input has been detected.
Alarm
No.
Display unit
Cause / Remedy
(Press the reset key after eliminating the cause.)
Description
Initial
value
Fluid level shown by the fluid level meter has fallen.
Add circulating fluid.

SMC Networks HRR012-A*-20 Series Specifications

General

Brand	SMC Networks
Model	HRR012-A*-20 Series
Category	Chiller
Language	English