Advertisement
IENGLISHI
good at all locations, then the most common cause of an abnormally noisy
contractor that is still operating normally is dust or other particles in the active part
of the contactor. The contactors can be disassembled, and surfaces can be cleaned
to remedy this. Do not allow installation particles or dust particles to be blown
around the enclosure at installation and operate in a clean environment.
If the contractor is chattering on and off and the voltage at the load side of the
contactor is not steady, then verify that the timer adjustment screw (white) on the
control board is set approximately ½ way between the left and right rotation. If
adjustment is needed insert a screwdriver and adjust accordingly and reset power to
the device. The farther this is turned clockwise the more time the computer
algorithm will watch the service loading before allowing the load side (ie: EV charger)
to energize. Ensure the current monitoring device connections are the correct
polarity (red wire closest to the plastic partition when it is plugged into the socket).
Ensure the current monitoring device wires and connectors are fully seated in the
respective connector and socket. If this is completed and the contractor is still
chattering or making a loud noise, please de-energize the device and contact the
manufacturer.
The device is built with noise isolators between the contactor and the enclosure. If
the screws that attach the contactor to the enclosure are overtightened or removed
any sound may be amplified. These screws can be adjusted to allow for acoustic
separation while maintaining the connection between the enclosure and contactor
chassis.
13
Advertisement
