Isolating Transformer; Continuous Pump; Program-Controlled Pump; Extra On Mode Switch ("Tank On") - A.O. Smith 28 30 50 60 Installation & Service Manual

3
3.10.4
3.10.5
3.10.6
3.10.7
32
Installation
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.

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
2. Connect phase (L), neutral (N) and earth (
terminals 16 through 21 of the connector block as indicated in
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.

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 (
indicated in Table 3.10.
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.

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 (
indicated in Table 3.10.
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.

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 and X
1
2. Fit the cable in the pull relief.
1. Contact A.O. Smith for details of the correct isolating transformer.
A
) of the power cables to
A
) to terminals 7, 8 and 9 as
A
to terminals 10, 11 and 12 as
) to terminals 5 and 6 as indicated in
2
Instruction Manual BFC
is
(1)
.
Table 3.10.
Table 3.10.