Electrical Connections; Preparing The Electric Cableways; Power Cable Connection; Steam Production Control Signals (M2.1 - M2.7) - Carel humiSteam Basic Serie Manual Del Usuario

ENG

4.1 Preparing the electric cableways

Models UE001 to UE018
outside unit, bottom view
Models UE025 to UE065
outside unit, side view
Key to Figs. 4.a & 4.b:
1. power cable inlet;
2. optional utility cable inlet (after drilling).
3. probe cable inlet. On models UE001 to UE018, remove the plastic "tab"
and use it to secure the cable (held in place by the screws provided).
"UE BASIC" +030220632 - rel. 2.3 - 20.01.2009

4. ELECTRICAL CONNECTIONS

inside unit, top view
2
3
1
Fig. 4.a
1
3
2
Fig. 4.b

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
1
the power and ground connection cables into the electrical panel
compartment using the tear-proof cable gland supplied, or through the
cable gland with cable stop, and connect the ends to the terminals (see
3
Fig. 4.c). The humidifi er power line must be fi tted, by the installer,
with a disconnecting switch and fuses protecting against short circuits.
2
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
Fig. 4.c (view inside unit, electrical compartment)
Important Important : connect the yellow-green cable to the earth point
(GND).
1
In the 400 V three-phase models, also connect the neutral (N)
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 diff erent 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.
14
Three-phase models
L N
M.2.1 M.2.2 M.2.3 M2.4 M.2.5 M.2.6 M.2.7
Fig. 4.d
L1 L2 L3 N
1