Pump Management (In The Pump Unit); Changing Oil; Operating Hours; Hours Of Pump Unit Operation - Elsteam EHPN Series Operating And Maintenance Manual

10.4 Pump management (in the pump unit)

Onahumidityrequestfromtheracks,themotor/pumpunitprovidestheONsignalandrampsthedriveinverteruptothe
nominal pressure.
Oncethenominalpressureisreached,thepumptemperatureisalsomonitored;itisstoppedwithalarmAL02 if the
temperature is below M0 or with alarm AL03 if the temperature is above M1.
If instead the nominal temperature is not reached within the time c4,thepumpsisstoppedwithalarmAL01.

10.5 Changing oil

Therearetimesforthefirstoilchangeandthesubsequentones.Moreover,therearetwotimethresholds:
• Athresholdabovewhichonlythemaintenancewarning(non-blocking)isdisplayed;
• Athresholdabovewhichthemachinewillbeblockedwiththecorrespondingalarm.
The EHPNcalculatesthemaintenancethresholdsautomatically,basedontheelectricalconductivityofthewater.Inanycase
they can still be changed via parameters.
The parameters that define the oil change maintenance are as follows:
Par. Description
c0 Firstoilchangeinterval.
c1 Firstoilchangetolerance.
c2 Subsequent oil change interval.
c3 Subsequent oil change tolerance.
The EHPN calculates the pump operating hours threshold automatically.
Oncethemaintenancehasbeencarriedout,resettheoperatinghoursintheCountersectionoftheMaintenancemenu.

10.6 Operating hours

Toallowperiodicmaintenance,theEHPN records the hours of humidifier operation divided as follows:
• Pump unit;
• Distributionrack.

10.6.1 Hours of pump unit operation

The following times are monitored:
• Hours of unit operation;
• Hours of pump operation;
• Hours of inverter operation;
• Hours of single-branch or room solenoid valve operation;
• Hours of outlet solenoid valve operation;
• Hoursorreverseosmosissystemoperation(ifreservedforthehumidifier);
• Hoursoffilteroperation(ifinstalled);
• Hours of pump oil operation.
The configuration parameters (on the pump unit interface) for the maintenance warning thresholds are:
Par. Description
M10 Maintenance hours warning threshold for the unit.
M12 Maintenance hours warning threshold for the inverter.
M13 Maintenance hours warning threshold for the single-branch or room solenoid valve.
M14 Maintenance hours warning threshold for the disinfection valve.
M15 Maintenance hours warning threshold for the outlet solenoid valve.
M16 Maintenance hours warning threshold for the reverse osmosis system.
M17 Maintenance hours warning threshold for the filters.
M18 Number of activations warning for the solenoid valves.
924EHPNE4.01 - EHPN series humidifiers | 84 | Operation |
MU Range
h 50...100
h 20...70
h 500...2000
h 50...200
MU Range
hx10 100...10000
hx10 100...10000
hx10 100...10000
hx10 100...10000
hx10 100...10000
hx10 100...10000
hx10 100...10000
nx1000 100...10000
02/2024