AERMEC ANK 설치 매뉴얼 - 페이지 5

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2.2ELECTRICAL CONNECTIONS

The ANK heat pumps are completely wired at the

factory a nd only require connection to the electrical

mains, downstream from a unit switch, according

to that envisioned by the Standards in force on

this subject in the country of installation.

It s also advised to check the following:



The electrical mains features are suitable

For the absorption values indicated in the

electrical data table in technical manual. Also taking into

consideration any other machines operating at the same time.



The unit is only powered when installation has been

completed (hydraulic and electric).



Respect the connection

and ground wires.



The power supply line must have a relevant protection

mounted upstream against short circuits and

dispersions to earth, which isolates the system with

Respect to other utilities.



The voltage must be within a tolerance of ±10% of the

nominal power supply voltage of the machine (for

unbalanced three‐phase unit max 3% between the

phases). Whenever these parameters are not

respected, contact the electric energy public body. For

electric connections, use the cables with double

isolation according to the Standards in force on this

subject in the differentcountries.



The use of an omnipolar magnet circuit breaker switch

is mandatory, in compliance with the IEC‐EN Standards

(contact opening at least 3 mm), with suitable cutoff

power and

differential

of the electric data table shown below, installed as near

as possible to the appliance.



It is mandatory to make an effective earth connection.

The manufacturer cannot be considered responsible for

any damage caused by the lack of or ineffective

appliance earth connection.For units with three‐phase

power supply, check the correct connection of the

phases.

indications of the phase,

protection

on the basis

2.2.1 CABLE

The cable section shown in the table are recommended for maxi‐

mum lengths of 50m. For longer lengths or different cable laying, it

is up to the designer to calculate the appropriate line switch, the

power supply line as well as the connection to the earth wire and

connection cables

depending on:



length



type of cable



absorption of the unit and the physical location



ambient temperature.

ATTENTION:

Check the tightening of all power wire clamps on commissioning

and after 30 days from start‐up. Subsequently, check the tightening

of all the power clamps every six months. Loose terminals can cause

overheating of the cables and components.

2.2.2 CONNECTING POWER SUPPLY



Before connecting the unit to the power supply mains , en‐

sure that the switch is off



Open the front panel



Use the holes at the bottom on the framework for the

main electric power supply cable and for the cables of the

other external connections under the responsibility of the

installer.



It is forbidden to access with electric cables in positions not

specifically envisioned in this manual.



Avoid direct contact with not insulated copper piping and

with compressor.



Identify the clamps for the electric connection, always refer

to the electric layout supplied with the unit.



For the functional connection of the unit bring a power

supply cable to the electric control board inside the unit and

connect to the U‐N and PE clamps respecting (U) phase, (N)

neutral, (PE) earth in case of single‐phase power supply

(220V‐1~60Hz),



Re‐position the inspection panels



Ensure that all protections removed for the electric connec‐

tion have been restored before electrically powering the

unit.



Position the main system switch (external to the appliance)

at "ON".