CLIMAVENETA i-accurate, Installation Manual - User And Maintenance

Page: 46 / 68

ELECTRICAL CONNECTION OF THE i-BRE and BRE OUTDOOR AIR-COOLED
CONDENSERS and/or i-BDC and BDC OUTDOOR DRY COOLERS
It must be stressed that both the standard air-cooled condensers
and dry coolers supplied by the manufacturer are not fitted as
standard with the condenser fan speed controller, and are only
electrically connected to the disconnect switch for local mainte-
nance operations (for further details, see the manual on the out-
door air-cooled condensers and dry coolers). PTherefore, both of
these outdoor units can be powered directly via the disconnect
switch with primary voltage, however this means their operation
is not controlled. If the STD version of the unit is used together
with the i-BRE remote condenser, or the MODULATING version
fitted with outdoor fan speed control together with the BRE con-
denser, the power supply to the outdoor air-cooled condenser
and/or outdoor dry cooler can be connected directly from the
indoor unit panel (the connection cable is not supplied by the
manufacturer).
The instructions on the connection and the size of the
power cables are provided by the manufacturer on the
wiring diagram on the indoor unit.
For both single and dual circuit models, just one connection/pow-
er cable is required between the indoor and outdoor unit.
For the STD version fitted with condenser control function for i-
BRE condensers (with EC fans), the fans are managed using a 0 to
10V signal, following the logic implemented on the EV
controller.
For the MODULATING version, the voltage signal sent will be
modulated by the condenser controller installed on the indoor
unit, based on instant system requirements.
This ensures optimum operating conditions at all times.
The condenser control unit is also featured as standard on the ver-
sions of the indoor units for low outside temperatures (-45°C).
For the parameter setting of control condensation phase
cut for BRE-BDC, refer to the controller manual EVOLU-
TION+.
For connection to the i-BRE / i-BDC outdoor units for fan
speed control, see the instructions shown on the follow-
ing diagram:
1
fi
M
EV1
1
fi
M
EV2
1
fi
M
EV3
1
fi
M
EV4
QS1
PE L1 N1 PE L2 N2 PE L3 N3 PE L4 N4 13 14 15 23 24 25 33 34 35 43 44 45
G/V
E
R
D
E (
Y
/GR
E
EN
)
MA
RRO
NE
(B
RO
W
N
)
BL
U (BL
U
E
)
NE
RO
(B
LA
CK
)
3
NE
RO
(B
LA
CK
)
4
NE
RO
(B
LA
CK
)
5
G/V
E
R
D
E (
Y
/GR
E
EN
)
MA
RRO
NE
(B
RO
W
N
)
BL
U (BL
U
E
)
G/V
E
R
D
E (
Y
/GR
E
EN
)
MA
RRO
NE
(B
RO
W
N
)
BL
U (BL
U
E
)
G/V
E
R
D
E (
Y
/GR
E
EN
)
MA
RRO
NE
(B
RO
W
N
)
BL
U (BL
U
E
)
NE
RO
(B
LA
CK
)
3
NE
RO
(B
LA
CK
)
4
NE
RO
(B
LA
CK
)
5
NE
RO
(B
LA
CK
)
3
NE
RO
(B
LA
CK
)
4
NE
RO
(B
LA
CK
)
5
NE
RO
(B
LA
CK
)
3
NE
RO
(B
LA
CK
)
4
NE
RO
(B
LA
CK
)
5
USCITA COMANDO VENT.RAD. CONDENSANTE
COND. UNIT SIGNAL
GN
D
SIG
N
AL
0
...10
VD
C
16 17 26 27 36 37 46 47
NE
RO
(B
LA
CK
)
6
NE
RO
(B
LA
CK
)
7
NE
RO
(B
LA
CK
)
6
NE
RO
(B
LA
CK
)
7
NE
RO
(B
LA
CK
)
6
NE
RO
(B
LA
CK
)
7
NE
RO
(B
LA
CK
)
6
NE
RO
(B
LA
CK
)
7
RIMUOVERE I SEGUENTI PONTI TRA I
MORSETTI (REMOVE THE BRIDGE FROM THIS
TERMINAL BLOCK):
14-15 / 24-25 / 34-35 / 44-45
16-26 / 26-36 / 36-46
17-27 / 27-37 / 37-47
PONTICELLARE I SEGUENTI MORSETTI
(MAKE A BRIDGE IN THIS TERMINAL BLOCK):
13-23 / 23-33 / 33-43
14/24 / 24-34 / 34-44
QUADRO ELETTRICO UNITÀ ACCURATE
ACCURATE UNIT ELECTRICAL PANEL
SEZIONATORE i-BRE
i-BRE DISCONNECTIONG SWITCH
ALIMENTAZIONE CONDENSANTE 1
CONDENSING UNIT 1 POWER SUPPLY
46 EN i-ACCURATE i-AX - i-AW - i-AD - i-AT - i-AF
Example of outdoor unit with 4 fans