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The pump
operation is controlled by a float-activated switch. Travel limits of the float
are determined by the location of two adjustable collars on the trip rod. These
collars should be set into position prior to final installation. To minimize
wear on the starting mechanism, on/off intervals of operation should be longer
than five minutes, if possible.
Only a
qualified electrician should make the necessary hook-up of electric power, one
familiar with the industrial wiring codes in your area. Single phase pump
motors are factory wired to provide proper rotation of the pump shaft.
Explosion Proof pumps REQUIRE an qualified
electrician schooled in these types of
installation.
Three phase
hook-ups must be checked for proper rotation as indicated by the arrow label on
the pump shaft housing. If rotation is not correct, switch any two lead wires.
Though our
single phase motors have built-in overload protection, some commercial wiring
codes require an external overload relay. Three phase motors should utilize
external overload and starting relays activated by the float switch. For
explosion-proof installations, the external controls must be rated and
classified for hazardous environments. |
