Always double-check the voltage of your power source. Connection to improper voltage can: a) cause severe
damage/harm, or b) cause lights and screen to power on without system function.
All service should only be attempted by a person with appropriate electrical skills, with all equipment
disconnected from power.
The SJ Series is shipped from the factory with a 240 VAC configuration unless specially ordered. If 120VAC is
needed, move the internal jumpers as shown below. If unsure, seek professional advice.
The voltage terminals can be accessed by opening the SJ Control Module; remove
the two torx screws (T10) on the left and right side of the blue case to do so.
The small Terminal Block is located in the corner of the Control Module. The factory voltage setting is the 240V
configuration, with a wire jumper inserted between the second and third terminals. The Control Module can
be made to accept 110V by adding a jumper (second wire jumper included with manual packet) and
reconfiguring them as shown above right, with two jumpers instead connecting the first & second terminals,
and the third & fourth terminals.
NOTE: Only jumper wires between screw terminals should be moved or reconfigured. No other wires should
be moved or loosened. Ensure all connections are tight before returning unit to service.
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