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7.8.3.3
7.8.3.4
7.8.3.5
7.8.4
68
1.
Connect neutral (N), live (L) and earth (A) to terminals 13, 14 and 15 as indicated in
the table (see section 7.8.1).
2.
Fit the cable in the strain relief.
3.
If you have no more connections to make:
-
Fit the cover on the terminal block.
-
Fit the covers onto the water heater.
External ON mode switch
External ON/OFF is an option for connecting an external ON/OFF switch. In the OFF
position, the programmed operating mode is active. In the ON position, the programmed
operating mode is overruled, and "ON mode" is active.
1.
Connect leads (X3 and X4) to terminals 21 and 22 according to the table (see section
7.8.1).
2.
Fit the cable in the strain relief.
3.
If you have no more connections to make:
-
Fit the cover on the terminal block.
-
Fit the covers onto the water heater.
Additional error signal
The appliance has a relay terminal that is switched when an error is detected. This can be
used to signal errors, for example with a bulb. A 230V circuit can be powered directly.
Other voltages require a relay prescribed by the manufacturer.
1.
Connect the phase cables (X1 and X2) to points 10 and 11 according to the table
(see section 7.8.1). If required, connect earth (A) to terminal 12.
2.
Fit the cable in the strain relief.
3.
If you have no more connections to make:
-
Fit the cover on the terminal block.
-
Fit the covers onto the water heater.
Communication cable to solar heating system
You must connect a communication cable between the controllers of the water heater and
the solar heating system.
1.
Connect the cables (X5 and X6) to terminals 23 and 24 as shown in the table (see
section 7.8).
2.
Fit the cable in the strain relief.
3.
If you have no more connections to make:
-
Fit the cover on the terminal block.
-
Fit the covers onto the water heater.
Electrical connection of the solar heating system
This section covers the following topics:
•
Preparation (see section 7.8.4.1);
•
Connecting the mains power (see section 7.8.4.2);
•
Connecting pump station - modulating pump (see section 7.8.4.3);
•
Connecting solar collector (see section 7.8.4.4);
•
Connecting tank sensor (see section 7.8.4.5);
•
Connecting top tank sensor (see section 7.8.4.6);
•
Connecting communication cable (see section 7.8.4.7);
•
Connecting Q/T sensor (see section 7.8.4.8).
Installation, Maintenance and Service part
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