Description; Product Overview; Pump Unit - Elsteam EHPN Series Operating And Maintenance Manual

1.1 Description

The EHPN series is the ELSTEAM solution for high-pressure adiabatic air humidification systems.
The EHPN series consists of 2 elements:

• Pump unit;

• Distributionnetwork(oneormoreracks,single-branch,room).
The EHPN high-pressure adiabatic humidifier produces mist by conveying high-pressure water (80 bar) in a distribution
networkcomposedofnozzles.Microscopicholesinthenozzlesatomisethewaterintoafinemist,whichisabsorbedbytheair
in the duct or in the surrounding environment when distributed in the room.
The EHPN series adiabatic humidification system regulates its operation according to the humidity request from the control
systems (see "6.6 CONFIGURATIONS" ON PAGE 49).
The droplet separator (optional only installed in the AHU) is used to stop and water droplets that were not atomised before
entering the duct.
NOTE: EHPN series humidifiers are defined as "NOT ACCESSIBLE TO THE PUBLIC".

1.2 Product overview

1.2.1 Pump unit
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Reference Description
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Water pipe inlet/outlet hole
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Pump unit body
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Userinterface,3.5"TFTgraphicdisplay
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EVCO Compact series inverter
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Pump unit control board
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230/24 Vac transformer
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Earth terminal
924EHPNE4.01 - EHPN series humidifiers
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Fig. 1.
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Pump unit overview
Reference Description
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Cable gland for power wiring
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Fuseholderbase
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3 cable glands for signal wiring
Removable shelf to separate the electrical/
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hydraulic parts
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Servo-ventilated motor
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Stainless steel pump
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Oillevelcheckhole
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02/2024