A.O. Smith 28 30 50 60, Installation & Service Manual

Page: 31 / 96

Electrical connection
Release R.1.3 UK 31
is
In preparation you should first remove the two plastic covers and the
protective cap of the electrical section. The plastic covers are attached to the
appliance by 4 screws and Velcro fastenings. The covers are also joined to
each other with Velcro fastenings.
1. Unscrew the screws of the plastic covers.
2. Carefully remove the black plastic covers from the appliance.
The electrical section is now visible.
3. Undo the 2 screws
1
from the electrical section and remove the protective
cap
2
from the electrical section.
The connection block
3
is now visible.
n Remark
Refer to ’A.2 Electrical diagram BFC’ for the connection of electrical
components.
3.10.3 Mains voltage
The appliance is supplied without a power cord and main switch.
n
Remark
In order to receive electrical power, the appliance has to be connected to the
mains voltage by means of a permanent electrical connection. A two-
terminal main switch with a contact gap of at least 3 mm must be fitted
between this fixed connection and the appliance. The power cord must have
cores of at least 3 x 1.0 mm
2
.
1. Connect phase (L), neutral (N) and earth (
A
) of the power cord to terminals
22 through 24 of the connector block as indicated in Table 3.10 .
2. Fit the power cord 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.
Figure 3.6 Connection block (connections 1 through 24 explained in
Table 3.10 )
1
24
IMD-0077
2
1
1
3