Operation With Distribution In The Duct | P25 ≠ 0 - Elsteam EHPN Series Operating And Maintenance Manual

• CFGp=HUM;
• P25=0;
• Set parameter P7 according to the sensor type to be used;
• Enable digital input closed (CV);
• RemoteON/OFFdigitalinputclosed(0/1).
Atomised water is produced when the humidity read by sensor S3 drops below setpoint SP1 and is no longer produced when
the humidity > SP1+r4.
10.2.2 Operation with distribution in the duct | P25 ≠ 0
Withdistributionintheduct,thehumiditycanberegulatedinfourways,dependingonhowtheCFG parameter is set in the
distributionrackuserinterface:
• ON-OFFregulationintheduct(CFG=0-1);
• Proportional regulation in the duct (CFG=PROP);
• Regulation with the humidity sensor in the duct (CFG=HUM);
• Regulation with the humidity sensor and limit sensor in the duct (CFG=HUML)
ON-OFF regulation in the duct
To use the EHPNwithON-OFFregulation,thefollowingconditionsmustbemet:
• CFG=0-1;
• P25≠0;
• Enable digital input closed (CV);
• RemoteON/OFFdigitalinputclosed(0/1).
When digital input S0isclosed,theEHPN produces humidity at the maximum value set in parameter r6.
Proportional regulation in the duct
To use the EHPNwithproportionalregulation,thefollowingconditionsmustbemet:
• CFG=PROP;
• P25≠0;
• Enable digital input closed (CV);
• RemoteON/OFFdigitalinputclosed(0/1).
The humidity production varies with the value read at analogue input S2,withthelogicexpressedinthegraphbelow,without
exceeding parameter r6:
100%
r6
r5
r5
924EHPNE4.01 - EHPN series humidifiers
r6
10V=
100%
Fig. 67. How proportional regulation works | CFG = PROP
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Production
02/2024