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Installation
32 Instruction Manual BFC
3
is
4. Connect the power cord to the main switch.
Warning
Leave the appliance disconnected until you are ready to start it up.
5. If you do not need to make any more connections:
- Fit the cap on the electrical connection block.
- Fit the plastic covers onto the appliance.
3.10.4 Isolating Transformer
An isolating transformer should be used if there is a case of “floating neutral”.
1. Refer to fitting instructions provided with the isolating transformer
(1)
.
2. Connect phase (L), neutral (N) and earth (
A) of the power cables to
terminals 16 through 21 of the connector block as indicated in Table 3.10.
3. Fit the cables in the pull relief.
4. If you do not need to make any more connections:
- Fit the cap on the electrical connection block.
- Fit the plastic covers onto the appliance.
5. Connect the power cord to the main switch.
3.10.5 Continuous pump
The continuous pump will start up as soon as mains power is connected to the
appliance.
1. Connect phase (L), neutral (N) and earth (
A) to terminals 7, 8 and 9 as
indicated in Tabl e 3.1 0.
2. Fit the cable in the pull relief.
3. If you do not need to make any more connections:
- Fit the cap on the electrical connection block.
- Fit the plastic covers onto the appliance.
3.10.6 program-controlled pump
Switching on of the program-controlled pump is determined by settings of the
ThermoControl.
1. Connect phase (L), neutral (N) and earth (
A to terminals 10, 11 and 12 as
indicated in Tabl e 3.1 0.
2. Fit the cable in the pull relief.
3. If you do not need to make any more connections:
- Fit the cap on the electrical connection block.
- Fit the plastic covers onto the appliance.
3.10.7 Extra ON mode switch (“Tank ON”)
Tank ON is a facility 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 the “ON mode” is active.
1. Connect cables (X
1
and X
2
) to terminals 5 and 6 as indicated in Table 3.10.
2. Fit the cable in the pull relief.
1. Contact A.O. Smith for details of the correct isolating transformer.