3 Replacing The Terminal Box Or Capacitor - Grundfos SuperBrute XL Installation And Operating Instructions Manual

6.3 Replacing the terminal box
or capacitor
Warning!
Before starting any work on this
circulator, make sure electrical
supply has been switched off and
that it cannot be accidentally
switched on.
Removal
1. Before replacing the terminal box and
capacitor, make sure the power is OFF.
2. Remove the terminal box cover / lid by
completely loosening the Phillips head
screw in the center of the cover / lid.
3. Disconnect all wiring. Move the capacitor
to allow access to the screws.
4. Remove the two T15 Torx head screws
holding the terminal box in place.
5. Pull firmly and evenly on both sides of the
terminal box to free it from the stator /
pump head.
Installation
1. Carefully press the terminal box into the
stator socket.
2. Replace the two T15 Torx head screws and
torque to 1.5 ft.-lbs / 2 Nm.
3. Replace the wiring (refer to section
3.3 Electrical connection).
4. Use care when installing the terminal box
cover with speed switch (rough handling
can damage the run light LED on the
printed circuit board (PCB)). Next insert
the Phillips head screw through the cover
and tighten to a snug fit.
10. Restore power.
16
Fig. 14 Terminal box lid / cover
Terminal
box holding
screws
Fig. 15 Location of terminal box holding
screws