ID.: 17-16-20-2979-10
30
3.2018
b. Single-phase connection with maximal current load of 25 A
This connection is used when single-phase power supply with 25 A fuses is available. In this
connection type, connect power supply phase to pin
3
. This is connected to pin
4
with a
bridge (factory connection).
To connect the second electric heater (2 kW) it is necessary to
additionally
connect the
bridge between connection pins
4
and
5
.
This enables the operation of the device generator and both installed electric heaters (2 x 2
kW).
Supply cable needs to have a circumsection 3 x 4 mm
2
.
Maximal total electrical power for this connection is 5,5 kW.
c. Three-phase connection with maximal current load of 3 x 16 A
This connection is used when three-phase power supply with 3x16 A fuses is available. In
this type of connection, every phase is connected to an individual pin (
1, 2, 3, 4
and
5
).
This enables the operation of the device generator and both installed electric heaters (2 x 2
kW).
Supply cable needs to have a circumsection 5 x 1,5 mm
2
.
Maximal total electrical power for this connection is 5,5 kW.
5.9.2 Additional Heat Source Connection
Left connection pin is intended for the connection of the circulation pump, external
switch and temperature probe of the external source.
Temperature probe of the external heat source
must be connected to pins with markings
B1 and B2. To measure external heat source temperature (differential thermostat) use
temperature probe of the NTC type (10K 1% BETA 3435 1%). Temperature probe power
supply is 5 V.
ATTENTION:
In three-phase connection, it is obligatory to
remove
the bridge which is factory
placed and connecting pins 3 and 4.
WARNING
Connection pins of the temperature probe for the external heat source are under 5
V tension.
2
B1 B2
C1 C2 D1 D2 D3 A1 A2
Содержание WP4 LF-502
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