14
“UE BASIC” +08C0042EZ - rel. 1.0 - 16.10.2017
ENG
4. ELECTRICAL
CONNECTIONS
4.1 Preparing the electric cableways
Models UE005 to UE015
outside unit, bottom view
inside unit, top view
1
3
2
1
2
3
Fig. 4.a
Models UE025 to UE065: outside unit, side view
3
2
1
Fig. 4.b
Key to Figs. 4.a & 4.b:
1.
power cable inlet;
2.
optional utility cable inlet (after drilling).
3.
probe cable inlet. On models UE005 to UE015, remove the plastic “tab”
and use it to secure the cable (held in place by the screws provided).
4.2 Power cable connection
Before making the connections, ensure that the machine is
disconnected from the mains power supply.
Check that the power supply voltage of the appliance corresponds to
the value indicated on the rating plate inside the electrical panel. Insert
the power and ground connection cables into the electrical panel
compartment using the tear-proof cable gland supplied, or through
thecable gland with cable stop, and connect the ends to the terminals (see
Fig. 4.c). The humidifier power line must be fitted, by the installer, with a
disconnecting switch and fuses protecting against short circuits. Table 11.a
lists the recommended cross-sections of the power supply cable and the
recommended fuse ratings; note, however, that this data is purely a guide
and, in the event of non-compliance with local standards, the latter must
prevail.
Note:
to avoid unwanted interference, the power cables should
be kept apart from the probe signal cables.
Single-phase models
Three-phase models
humiSt
eam
PE L N
humiSt
eam
PE L1 L
2
L
3
Fig. 4.c (view inside unit, electrical compartment)
Important
:
connect the yellow-green cable to the earth point
(GND).
4.3 Steam production control signals (M2.1
- M2.7)
Depending on the type of signal used, steam production can be enabled
and/or managed in different ways (ON/OFF or modulating)..
Steam production is enabled by keeping terminals M2.4 and M2.5
closed.
1. Enable steam production using:
HUMIDISTAT (ON/OFF action)
•
connect inputs M2.2 and M2.3 (production request) to a humidistat;
•
jumper inputs M2.4 and M2.5 (enable);
•
set parameter A0=0 to enable the ON/OFF action.
M.2.1M.2.2 M.2.3 M2.4 M.2.5 M.2.6 M.2.7
Fig. 4.d
HUMIDISTAT and REMOTE CONTACT (ON/OFF action)
•
connect inputs M2.2 and M2.3 (production request) to a humidistat;
•
connect inputs M2.4 and M2.5 (enable) to a remote contact (e.g.:
switch, timer,…)
•
set parameter A0=0 to enable the ON/OFF action.
M.2.1M.2.2 M.2.3 M2.4 M.2.5 M.2.6 M.2.7
Fig. 4.e
