42
5880751_01
The unit must be connected directly to
an electrical outlet or to a separate
circuit.
ATTENTION: it is mandatory to
connect the Phase (L) and the
Neutral (N) power supply cables to
the relative clamps. Do not reverse
the connections. Follow the wiring
diagram.
Install a device, master switch or
electric plug that allows the unit’s
power supply to be completely
disconnected.
To protect the unit against short
circuits, fit an omnipolar magnet-
circuit breaker 2A 250V (IG) to the
power supply line with a minimum
contact opening distance of 3mm.
The following measures must be
considered for installations with three-
phase power supply:
1. In the presence of 3P + N isolators or
magnet circuit breakers, the release
current must be at least 170% of the
value absorbed by the overall load of
the fan coils for each phase.
2. The neutral wire section must be sized
considering a working current equal
to 170% of the value absorbed by the
overall load of the fan coils for each
phase.
SPECIFICATIONS OF THE CONNECTION
CABLES
Use H05V-K or N07V-K power cables with
300/500 V insulation enclosed inside a
pipe or trough.
Use a cable with a minimum cross-
section of 1 mm
2
.
All the cables must be enclosed inside a
pipe or trough until they are inside the
fan coil.
The cables at the outlet of the pipe or
cable trough must be positioned in a
way not to undergo traction or twisting
stress and be however, protected from
external agents.
Cables with strand can only be used
with crimped connectors. Make sure
that the strands are well inserted.
The wiring diagrams are subject to
constant updating and it is therefore
mandatory to refer to those on the
unit.
The control panel can be fitted on a
metal wall, unless it is permanently
connected to the earth plug.
Before installing the control panel
carefully read t he instruc tions,
if necessar y pro ceed with the
configuration of the panel. Some
control devices must be combined with
components supplied as accessories,
verify their availability.
ATTENTION: Check that the control
panel can withstand the load of the
electric motor, otherwise insert an SIT3
accessory interface between the fan coil
and the control panel.
ATTENTION: The units equipped
with VMF series thermostats must
be coupled with a VMF-SIT accessory
interface.
In the case of coupling with remote
control panels comply with the relevant
wiring diagram.
If present, connect the valve and the
probe to the terminal board according
to the positions specified in the wiring
diagram. In installations with three-
way valve, the minimum temperature
probe of the water must be moved
from its seat in the coil, to the flow pipe
upstream of the valve.
If necessary, use the higher motor
speeds, modifying the terminal board
connection on the electric motor.
Follow the wiring diagram.
ATTENTION: verify whether the
installation has been carried out cor-
rectly. Follow the verification proce-
dures indicated in the manuals of the
control panels.
ELECTRICAL CONNECTIONS
- Make the hydraulic connections.
ATTENTION: Always use a wrench and
counter-wrench to fix the pipes.
The position, type and diameter of the
hydraulic connections are specified in
the dimensional data.
It is recommended to insulate water pipes
and/or to install the suitable auxiliary
condensate collection tray, available as
an accessory, in order to avoid dripping
during cooling operation.
During installation check the seal of the
connections.
ATTENTION: Discharge the hydraulic
system. The vent valves are positioned
on the top of the coil close to the
hydraulic fittings.
ATTENTION: To drain the unit, use the
discharge valves at the bottom of the
coil close to the hydraulic fittings.
HYDRAULIC CONNECTIONS
B
A
Terminal board on the motor
The 5 motor speeds
(5) minimum
(1) maximum
(4 - 3 - 2 )
intermediate
ATTENTION: VES_I is provided with connections to terminals
5 - 4 -3.
To use the higher speeds (terminals 2 and 1), disconnect the
cables from the terminals of the preset speeds and connect
them to the terminals of the desired speeds.
The three speeds must always be contiguous.
Air vent valves
and water drain from coil
Содержание VES030
Страница 1: ...VES030 VES040 VES130 VES140 VES230 VES240 VES330 VES340 IVES0LJ 1707 5880761_01 ...
Страница 2: ...OSSERVAZIONI REMARKS REMARQUES OBSERVACIONES HINWEISE ...
Страница 50: ...VES_I030 VES_I040 VES_I130 VES_I140 VES_I230 VES_I240 VES_I330 VES_I340 5880751_01 17 07 ...
Страница 51: ...OSSERVAZIONI REMARKS REMARQUES OBSERVACIONES HINWEISE ...
Страница 59: ...10 5880751_01 TECHNICAL DATA ...