Table of Contents
Advertisement
8 - ELECTRICAL CONNECTION
The fan for cooling the electrical cabinet, the graphic terminal
and the ground connector, all located on the door, must be
disconnected before removing the door.
Electrical components are identifi ed and all wires are numbered. It
permits easy tracing and diagnostics.
Power cables are identifi ed with the colors: black (L1) - Brown (L2)
- grey (L3) - yellow/green (Ground).
The grounding lug (PE), located on the panel plate, is
used to earth the frame of the unit.
The main components of the unit are connected in intermediate
boxes located next to these components.
● BOX1:
Motor-compressor circuit 1
● BOX2:
Motor-compressor circuit 2 (models 052 to 093)
● BOX3:
Economizer
● BOX4:
Indoor unit
● BOX6:
Return box (optional)
The following image shows the location of boxes in a two-circuit
unit with "Standard" assembly:
C1
Vext1
BOX1
C2
CE
C3
BOX2
Vext2
C4
PE
BOX6
BOX3
BOX4
Vint1
Vint2
8.5 - "50FC" electronic control
"50FC" electronic control is basically comprised of a control board,
sensors, a graphic terminal, an user terminal (optional), a touch
panel (optional) and a BMS card (optional).
Graphic
terminal
By default, this control is supplied with a graphic terminal,
installed on the unit's electrical cabinet, but it can also be remotely
connected:
■ Up to 50 metres, it can be connected directly with telephone wire.
■ From 50 to 200 metres, it is necessary to use the TCONN bypass
cards and AWG 20/22 shielded cable with 2 twisted pairs.
The user terminal (optional) or the touch panel (optional) can
be installed in the electrical cabinet when the graphic terminal is
remotely connected.
Note: Refer to the "50FC" control brochure to obtain more detailed
information on its operation.
8.5.1 - Customer connection
No.
50FF/FC
1
Main power supply
400 III (±10%)
Remote connection of the graphic
2
terminal (by default it's installed on
the electrical cabinet) (1)
4
Remote off /on (optional)
5
Main failure signal (optional)
Circulation pump signal for HWC
6
(antifreeze safety) (optional)
7
Ambient probe
RS485
8
CO2 probe (optional)
(1) In this case, it´s possible to install the user terminal on the electrical
cabinet.
(2) Up to four RS485 ambient sensors can be connected in series on the
fi eld-bus of the control board.
User
Touch
terminal
panel
1
2
3
4
5
6
7
8
020 to 093
3 Wires + Ground + Neutral
telephone cable 6 wires
standard (RJ12 connector)
2 wires
2 wires
1 wire
NTC
2 wires
5 wires (2)
3 wires
27
Advertisement
Table of Contents
