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Pulsafeeder MPC User Manual

Page 44

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7. Wrap the end of the cable with electrical tape to insulate any remaining

shield so that it will not contact the circuit board, equipment case, or any
other parts.

8. Referring to the notes taken earlier, connect each lead of the new cable to

the proper position of the terminal block; tighten the screw terminal to hold
lead. NOTE: It is recommended that you insert and secure one lead at a
time.

9. Tighten the dome nut of the liquid tight to secure/seal cable.

10. Replace cover and tighten screws. Be sure the o-ring is in its groove,

paying special attention to the corners. NOTE: Do not over tighten.

Wait a minimum of 3 minutes after disconnecting power before
servicing the MPC or pump motor. Capacitors retain a charge even after
power is removed from the controller.

1. Remove the 10 screws that are securing the cover to the side of the main

unit.

2. CAUTION: The cover is wired and should be folded down gently being

sure not to pull any of the wires that are connected to it.

3. Make a note of what color lead is in each position of the terminal block

“J14”. Loosen each position of terminal block “J14” and remove each lead.

4. Loosen the outer domed nut on the liquid tight, releasing the tension on

the cable. Pull the cable through the liquid tight. Thread the new cable
through the liquid tight with enough length to reconnect to the terminal
block.

5. Prepare the end of the cable as per figure 5b on the following page.

Ensure that the shield is fully insulated until the point where it enters the
terminal. No part of the shield should be allowed to come in contact with
the circuit board, equipment case, or any other surface.

6. Note that the black-green lead is not utilized at this end of the cable.

7. Referring to the notes taken earlier, connect each lead of the new cable to

the proper position of the terminal block, and tighten the screw terminal to
hold the lead. NOTE: It is recommended that you insert and secure one
lead at a time.

8. Tighten the dome nut of the liquid tight to secure/seal cable.

9. Replace cover carefully being sure not to crimp any of the cables/leads

between cover and enclosure and tighten screws.

Power the unit on, if all connections were properly made the unit will power as
normal and the display will show the start up screen.