Electrical Wiring; Electrical Data; Preliminary Operations; Electrical Checks - AERMEC NRA Serie Manual De Instalación

The unit is fully wired in the factory and
for use electrical power as per the indica-
tions on the unit's rating plate is required,
with online protective cutouts.
The cable cross sections and the scaling
of the line switch are purely indicative.
The installation engineer will be respon-
sible for properly scaling the power line
with regards to the length and type of
cable, the input power of the unit and the
physical positioning.
All the electrical connections must com-
7. 1

ELECTRICAL DATA

NRA N°
STANDARD alimentation
0800 1
0900 1
1000 1
1250 1
1400 1
1500 1
1650 1
1800 1
NRA with
N°
alimentation
PUMPE
0800 1
0900 1
1000 1
1250 1
1400 1
1500 1
1
1650
1
1800
8. 1

PRELIMINARY OPERATIONS

WARNING
Before carrying out the controls
indicated below, ensure that the
unit is disconnected from the mains
supply. Ensure that the main switch
is turned to OFF and locked in position,
and attach a warning sign to the switch.
Before beginning the operations, check
the absence of voltage by means of a
voltmeter or a phase detector.
8. 1 . 1

Electrical checks

ELECTRICAL WIRING

7
ply with the regulations in force at the
time of the installation.
The diagrams and schematics in this do-
cumentation must only be used as an aid
for the setting up of the electrical lines.
Refer to the wiring diagram supplied with
the equipment, for installation require-
ments.
NOTE
Check that all power cables are correctly
secured to the terminals when switched
Sez A
Version
mm 2
(n° conduttori - sez.) x fase
00 70
00 95
00 95
00 120
00 120
00 185
00 2x150
00 2x150
Sez A
Version
mm 2
(n° conduttori - sez.) x fase
P1-P2-P3-P4 70
P1-P2-P3-P4 95
P1-P2-P3-P4 95
P1-P2-P3-P4 120
P1-P2-P3-P4 120
P1-P2-P3-P4 185
2x185
P1-P2-P3-P4
2x185
P1-P2-P3-P4
START-UP
8
- Check the general power supply
cables are of a suitable section, able to
withstand the overall absorption of the
unit (see electrical data), and that the
unit has been duly earthed.
- Check all the electrical connections
are correctly fixed and all the terminals
adequately closed.
The following operations must be carried
out when the unit is powered up.
- Power up the unit by turning the main
switch to the ON position. The display
will light up a few seconds after this.
on for the first time and after 30 days of
use. Afterwards, check the connection of
the power cables every six months. Slack
terminals could cause the cables and
components to overheat.
Cross sections recommended for the
maximum length of 50 m. The cross sec-
tion of the cable and the dimension of the
line switch are purely indicative.
LE GEN DA
Terra IL
mm 2 Sez A
A
Terra
35 200 A
IL
50 250 A
50 250 A
70 315 A
70 315 A
95 350 A
1x150 400 A
1x150 400 A
Terra IL
mm 2
A
35 200 A
50 250 A
50 250 A
70 315 A
70 315 A
95 350 A
1x150 400 A
1x150 400 A
Check that the working status is
positioned on OFF (OFF BY KEYB on the
lower side of the display).
- Use a tester to check that the value of
the supply voltage at the RST phases
is equal to 400V ±10%, and also
check that the imbalance between the
phases is not greater than 3%.
- Check that the connections made by
the installer comply with the data given
here.
- Check the heater(s) of the compressor
carter are working by measuring the
increase in temperature of the oil bowl.
Alimentazione
Terra da portare alla mac-
china
Interruttore generale
11