40
098-0010 Rev C
5
ALARM INFORMATION AND CHECKS
ALARMS will stop machine operation. It is not possible to restart the machine without addressing the fault.
Alarm
Description
Reason
Checks
Proposed Actions
ALARMS
RO1 Pump
Over Pressure
Alarm
Stage 1 Pump pressure switch
(PS2) registers value higher than
set-point on pressure switch for 5
seconds
X7 off
1) RO1 Membranes are blocked
2) Concentrate valve on RO1 closed
3) Pressure switch set lower than pump
pressure
4) Pressure switch faulty
1) Check valve status
2) Perform chemical clean
3) Adjust the pressure switch until
alarm clears
4) Replace pressure switch on stage
1 pump outlet
RO2 Pump
Over Pressure
Alarm (MDP
only)
Stage 2 Pump pressure switch
(PS3) registers value higher than
set-point on pressure switch for 5
seconds
X11 off
1) RO2 Membranes are blocked
2) Concentrate valve on RO2 closed
3) Pressure switch set lower than pump
pressure
4) Pressure switch faulty
1) Check valve status
2) Perform chemical clean
3) Adjust the pressure switch until
alarm clears
4) Replace pressure switch on stage
2 pump outlet
RO1 Pump
Fault Alarm
Stage 1 Pump communicating
fault condition
X1 on
1) Check and inspect pump RO1
2) Check X1 is lit on PLC
3) Check if pump breaker is turned off
4) Check that there is no shorts between
power and ground
1) Reset pump breaker
2) Check current draw of pump using
amp meter
3) Check for a short between X1 and
24 V
RO2 Pump
Fault Alarm
(MDP only)
Stage 2 Pump communicating
fault condition
X2 on
1) Check and inspect pump RO2
2) Check X2 is lit on PLC
3) Check if pump breaker is turned off
4) Check that there is no shorts between
power and ground
1) Reset pump breaker
2) Check current draw of pump using
amp meter
3) Check for a short between X2 and
24 V
Temperature
High Alarm
Loop Over Temp Alarm Set-point
Exceeded
1) Check Loop Over Temp Alarm set-point
2) Softened Potable incoming water supply
too hot
1) Adjust the Loop Over Temp Alarm
set-point above incoming temp
2) Check incoming water supply and
the blend valve or water heater
Summary of Contents for MediQA
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Page 4: ...2 098 0010 Rev C 1 COMPONENT IDENTIFICATION 1 1 MSP Components ...
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