A.O. Smith ADMR - 40, Installation, User And Service Manual

Page: 31 / 96

Instruction manual ADMR 31
is
Terminal block
3.10.3 Connecting the mains power
The appliance is supplied without a power cable and isolator.
Note
In order to receive electrical power, the appliance has to be connected to the
mains power by means of a permanent electrical connection. A double-pole
isolator with a contact gap of at least 3 mm must be fitted between this
permanent connection and the appliance. The power cable must have cores of
at least 3 x 1.0 mm
2
.
Warning
Leave the appliance isolated until you are ready to start it up.
1. Feed the power cable through the metric strain relief to the top side of the
control column.
2. Connect the earth ( ), live (L
1
) and neutral (N) of the power cable to
terminals 1 through 3 in the connector block as stated in the table.
3. Turn the strain relief tight to clamp the lead.
4. If you do not need to make any more connections, fit the protective cover
onto the control column.
5. Connect the power cable to the isolator.
Mains power Top to bottom
circulation
pump
Continuous
pump
Unused
L1 N L2 N L3 N - - -
1 2 3 4 5 6 7 8 9 10 11 12
Tank ON Flue gas safety
S1 S2
X1 X2 X1 X2 X3 X4
13 14 15 16 17 18
Alarm Out Relay
power
Unu
sed
Flue damper
X! X2 L4 N - L5 N L6 X1 X2
19 20 21 22 23 24 25 26 27 28 29 30
Isolating transformer
Primary Secondary
N L7 N L8
31 32 33 34 35 36