Electrical Connections - Elsteam HPN Series User, Installation And Maintenance Manual

High pressure proportional humidifier
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HighPressure Humidifier - Constant Pressure
Only HPNxxDEMI models complies with VDI6022 standards.
The High Pressure Humidifier can work with standard or demineralised water. Different pumps materials
(STAINLESS STEEL for reverse osmosis water, BRASS for normal tap water) are used in the two versions.
The water pressure at the input must not be lower than 1bar.
For proper operation in according to VDI standards, stagnation of water in supply lines shall be avoided.
When shutting down the system for long periods particular care must be taken to empty supply lines or
keep active water treatment systems.

7.6 Electrical Connections

Prior to carrying out any inspection or service on the machine, it is necessary to
disconnect it from the main electrical supply. Make sure, that nobody can reconnect it
during the technical service.
Every installed electrical and electronic equipment or basic structure must be
earthed.
All operations of electrical installation MUST be performed by qualified personnel (eg
electrician or staff with appropriate training) only.
The customer is responsible for the use of qualified personnel.
Before starting installation:
Check that the supply voltage and the frequency correspond to those indicated on the rating plate.
The dimensions of the supply cable must suit the machine absorption and comply with the current
regulations.
Put the cable in the relevant cable passage hole and then tighten.
Connectors for electrical connections are located inside the upper part of the cabinet (to access it you
need to remove the upper panel of the cabinet). It is recommended to isolate the machine from the mains
before each intervention and in any case in absence of protective covers (dangerously live electrical
parts are present inside).
The power supply line must be connected to the input of the circuit breaker, for the ground connection
there is a special yellow-green terminal, the hole for the cables is located on the rear of the cabinet.
Controls and alarm signals are found in the card connectors (to access it, remove the upper panel of the
cabinet) and the opening for these cables is also in the rear of the cabinet.
Elsteam S.r.l - via E.fermi, 496 - 21042 Caronno Pertusella (va) - Tel.+39 02 9659890 - Fax +39 02 96457007
Controller Terminal Block
E-mail: info@elsteam.it - Web: http://www.elsteam.com
21.1.EN
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