Replacing The Terminal Box Or Capacitor - Grundfos UPS 26-150 Installation And Operating Instructions Manual

8.3 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
5.3 Electrical connection).
4. Use care when installing the terminal box
cover with speed switch. Next insert the
Phillips head screw through the cover and
tighten to a snug fit.
5. Restore power.
16
Fig. 18 Terminal box lid / cover
Terminal box
holding screws
Fig. 19 Terminal box holding screws