A.O. Smith ADMR-115, Installation, User And Service Manual

Page: 33 / 98

Instruction manual ADMR 33
is
3.10.4 Connecting flue damper
1. Feed the power cable through the metric strain relief in the top of the control
column.
2. Connect earth ( ), live (L
5
) and neutral (N) to terminals 25, 26 and 27. Next
connect the three coded black wires (1 through 3) to terminals 28
6
), lead 2
to terminal 29 (X
1
) and lead 3 to terminal 30 (X
2
). See the terminal block
connections table (3.10.2 "Preparation") .
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.
3.10.5 Connecting an isolating transformer
An isolating transformer should be used if there is a case of 'floating neutral'.
1. Refer to the fitting instructions provided with the isolating transformer.
(Contact the supplier for details of the correct isolating transformer.)
2. Connect the cables from the isolating transformer to terminals 31 through 36
of the terminal block as indicated in the accompanying instructions. If
necessary, consult the
Electrical Diagrams ADMR .
3. If you do not need to make any more connections, fit the protective cover
onto the control column.
3.10.6 Connecting a continuous pump
The continuous pump will start up as soon as mains power is connected to the
1. Feed the power cable through the metric strain relief in the top of the control
column.
2. Connect earth ( ), live (L
1
) and neutral (N) to terminals 7, 8 and 9 as
indicated in the terminal block connections table (3.10.2 "Preparation") .
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.
3.10.7 Connecting top to bottom circulation pump
The top to bottom circulation pump is program-controlled. Switching on of the
shunt pump is determined by settings of the electronic controller.
1. Feed the power cable through the metric strain relief in the top of the control
column.
2. Connect earth ( ), live (L
1
) and neutral (N) to terminals 4, 5 and 6 as
indicated in the terminal block connections table (3.10.2 "Preparation") .
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.
3.10.8 Connecting an extra ON mode switch ("Tank ON")
Tank ON is a facility for connecting an external ON/OFFswitch. In the OFF
position, the programmed operating mode is active. In the ON position, the
programmed operating mode is overruled, and "ONmode" is active.
1. Feed the power cable through the metric strain relief in the top of the control
column.
2. Connect cables (X
1
and X
2
) to terminals 13 and 14 as indicated in the
terminal block connections table (3.10.2 "Preparation") .
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.