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L` 2 Installation Wiring the Conduit Box c. The 279-327-5 magnetic starter is shipped with the coil wired to accept 208-240 volts, 60 Hz. It may be rewired to accept 110-120 V. To connect 110-120 volts to the coil, rewire the coil per the wiring diagram label on the side of the contactor. Next, connect a wire from terminal V of the coil to neutral. The 279-230-5 magnetic starter is shipped with the coil wired to accept 575 volts, 60 Hz. It cannot be rewired The 279-231-5 magnetic starter is shipped with the coil wired to accept 190/240 volts, 50/60 Hz. It may be rewired to accept 380/460 volts, 50/60 Hz- d. zd. There are two remaining blue wires in the submerged pump junction box. Connect either blue wire to terminal L3 in the Magnetic Starter. Connect the other blue wire to one side of the "on-off" controls or switched "hot" from the electronic dispenser (See Figure 8). The "on-off" controls, if furnished by customer, must be of explosion proof construction. e. Installations using mechanical dispensers must be connected for 2 -wire control as shown on Figure 6 and Figure 7. Connect a black wire from the other side of the "on-off" switch to terminal 3 in the magnetic starter. f. Installations using loading racks only, may be connected for two or three wire control. (See Figure 7 or Figure 9). For three wire control, connect a black wire from terminal 3 in the magnetic starter to the "on- off" switch. Connect a red wire from terminal 2 in the magnetic starter to the "on-off" switch. NOTE: 3 -wire control requires the use of an auxiliary contact in the magnetic starter. This auxiliary contact is not standard equipment in the starters supplied by Red Jacket, and must be ordered as an option. Use Furnas auxiliary field kit 49D2125001 or equivalent. NOTE: Installations with the magnetic starter in a hazardous location require explosion proof starters. The wiring is the same as for general purpose enclosures. g. Install proper overload heaters in magnetic starter. 2. Motor Rotation Where it is not convenient to predetermine the power supply phase rotation, proper rotation can be deter- mined by pump performance. Pump head pressure. and capacity will be considerably less than rated when ro- tating backwards. Connect the pump motor leads to terminal T1, T2 and T3 of the magnetic starter observing color code shown in Figure 7, Figure 8 or Figure 9. With ample product in the tank and the system purged of air, start the motor and make a pressure gauge reading of the system pressure with the discharge valves closed; or, open one valve and calculate pumping rate. Next, reverse power leads at L1 and L2. Repeat either pressure or capacity tests, as described above. If re- sults are higher than the first test, the rotation of the second test is correct. If the second test gives lower per- formance than the first, reconnect the powerieads to L1 and L2 (as under test 1) for correct rotation. Where the power supply has been properly marked L1, L2 and L3 in accordance with accepted phase rota- tion standards, it is possible to predetermine the proper rotation of these units. The motor power leads are col- or coded black, orange and red, and if connected through the magnetic starter to L1, L2 and L3 respectively, the motor pump unit will rotate in the correct direction. It is recommended, however, that the performance tests always be made whether or not the power supply has been properly "phased out".