24
These latches of stainless steel have triangular insert
8 mm (supplied wrench). The closing is done by
rotating 90º (anti-clockwise): it brings the latch to the
locked position.
Dual locks can function as hinges or can be used
to remove the door. Check that the locks are not
blocked. Open them with a 4 mm Allen wrench (in an
anti-clockwise direction).
Important:
The grounding lug (PE),
located on the panel
plate, is used to earth
the frame of the unit.
The fan for cooling the electrical cabinet, the graphic terminal
and the ground connector, all located on the doors, must be
disconnected before removing the doors.
These doors have hinges + quarter-turn latches.
8 - ELECTRICAL CONNECTION
PE
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
● BOX3: Mixing box
● BOX4: Indoor unit
● BOX5: Rotary heat exchanger (optional). In this case the box
is located in the wheel module.
● BOX6: Return box (optional)
● BOX7: Electrical heaters (optional)
● BOX8: Hot water coil or heat recovery coil or gas burner
(optionals)
Models 100 to 170:
The following images show the location of these boxes:
BOX1
C1
C2
C3
C4
Electric cabinet
BOX2
BOX3
BOX6
BOX4
BOX7
BOX8
Indoor fans
Outdoor fans
Return section
BOX3
BOX6
BOX4
BOX7
BOX8
Indoor fans
Return section
C1
C2
C3
C4
BOX2
BOX1
Electric cabinet
Outdoor fans
Models 180 to 280:
Models 180 to 280:
Electric
cabinet
Electric
power
supply
inputs
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).
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