Pump Unit Alarm Table - Elsteam EHPN Series Operating And Maintenance Manual

Thetablebelowlistsalarmswithcorrespondingsolutions.IndicationtakesplaceviathealarmLED
alarm is recorded in the alarm log.

13.1 Pump unit alarm table

Code Description Cause
The pump is unable to bring the
Alarm: initial
AL01 distributionnetworkpressureup
low pressure
to SP4
Alarm:
AL02 low pump Pump temperature < M0
temperature
Alarm:
AL03 high pump Pump temperature > M1
temperature
Alarm:
Thedistributionnetworkpressure
AL04 low pump
≤ M2
pressure
Alarm:
Thedistributionnetworkpressure
AL05 high pump
≥M4
pressure
Alarm:
AL06 Inverternotworking
inverter
Alarm:rack No communication between pump
W07
offline unitanddistributionrack
Alarm:
AL11 machine Hours of unit operation > M10
service life
Alarm: pump Operating hours threshold
AL12
seal exceededforpumpseals/gaskets
Alarm:
AL13 inverter Hours of inverter operation > M12
maintenance
924EHPNE4.01 - EHPN series humidifiers
Effects
• Fixedalarmicon
• AL01 displayed
• HumidifierOFF
• AL01 recorded in the log
• Fixedalarmicon
• AL02 displayed
• HumidifierOFF
• AL02 recorded in the log
• Fixedalarmicon
• AL03 displayed
• HumidifierOFF
• AL03 recorded in the log
• Fixedalarmicon
• AL04 displayed
• Alarm relay ON
• HumidifierOFF
• AL04 recorded in the log
• Fixedalarmicon
• AL05 displayed
• Alarm relay ON
• HumidifierOFF
• AL05 recorded in the log
• Fixedalarmicon
• AL06 displayed
• Alarm relay ON
• HumidifierOFF
• AL06 recorded in the log
• Fixedalarmicon
• W07 displayed
• Alarm relay ON
• HumidifierOFF
• W07 recorded in the log
• Fixedalarmicon
• AL11 displayed
• Alarm relay ON
• Noeffectonregulation
• AL11 recorded in the log
• Fixedalarmicon
• AL12 displayed
• Alarm relay ON
• HumidifierOFF
• AL12 recorded in the log
• Fixedalarmicon
• AL13 displayed
• Alarm relay ON
• Noeffectonregulation
• AL13 recorded in the log
| 107 | Diagnostics |
and the buzzer. Each
Solution
• Check:
• Outlet solenoid valve
• Nozzlesnotworking
•  L eaksfromjoints/pipes
• Water system supply
Wait until the pump
temperature > M0+2°C/°F
Wait until the pump
temperature < M1-2°C/°F
• Wait until the distribution
networkpressure≥ M2+0.1
• Check:
• Outlet solenoid valve
• Nozzlesnotworking
•  L eaksfromjoints/pipes
• Water system supply
• Automatic reset
• Wait until the distribution
networkpressure≤M4-0.1
•  C heck:
• Branch inlet solenoid valve
• Branch solenoid valve
• Blockednozzles
• Automatic reset
• Identify the inverter error
• Refer to the inverter manual
• Restore communication
between pump unit and
distributionrack
• Automatic reset
• Carry out full maintenance
• Reset the counter
• Disassemble the pump and
check/replacethepump
seals/valves as described in
the pump manual
•  C heck/replacethefollowing
ever two oil changes: Valve
units,pumpseals.
• Carry out inverter
maintenance
• Reset the counter
02/2024