Assessments - 2, GPA: 4.5 ( )

Fabricante : HP Arquivo Tamanho: 1.17 mb Arquivo Nome : Língua de Ensino:

Grasp the lifting chain and shake the pump to ensure a good seat with the gasket. The pump is suspended by the bracket ears. The weight of the pump compresses the gasket against the mating flange of the guide bracket base. 4. The lifting chain may be removed from the hoist and hooked near the upper guide rail bracket. IMPORTANT: For 3-phase pumps, check for proper rotation before installing pump into basin. See figure A for proper rotation. 4. AFTER THE PUMP IS INSTALLED, THE ELECTRICAL CHECKS OF SECTION 4 MUST BE PERFORMED. 4-1 PIGGY BACK SWITCH OPERATION 1. Plug the Piggyback switch into a 6-20R receptacle. The receptacle must be wired to a 30-amp breaker. Be sure to have the breaker turned off before plugging in the switch. 2. Plug the pump power cord into the piggyback switch as shown. 3. The pump is ready to test and your breaker can be turned on. (Refer to section 5) ALWAYS TURN OFF BREAKERS BEFORE WORKING ON ELECTRICAL CORDS. BE CAREFUL NOT TO DRILL OR SCREW INTO EXISTING WIRING. Check to make sure installation is in accordance with the National Electric Code and all applicable local codes. Installation and servicing is to be conducted by qualified personnel. This pump is supplied with a grounding conductor. To reduce the risk of electrical shock, be certain that it is connected to a properly grounded earth wire. 4-2 CONTROL PANEL OPERATION REFER TO WIRING DIAGRAM INCLUDED WITH CONTROL PANEL. IF THERE IS NO WIRING DIAGRAM, CONTACT THE MANUFACTURER TO OBTAIN ONE. DO NOT ATTEMPT TO CONNECT PUMP WITHOUT A WIRING DIAGRAM. 1. The pump can run on a voltage rating of 230V or 208V. Check that it is the same as the supply voltage. The pumps are supplied with 6-20P (20-amp) cord plug ends. Most often the pump will be plugged into a receptacle. If your pump needs to be hard wired into a panel then the plug end will have to be removed and the leads stripped back. The connection of the pump cable leads should be carried out by a licensed electrician in accordance with the identification on the individual leads and the corresponding connections in the control panel. Refer to the wiring diagrams supplied with the panels. Electrical Connection Bottom ViewFig. A – Proper impeller rotation, three phase models Check three phase pumps for proper rotation prior to installing pump(s) in basin. To change rotation, reverse any two of the three power leads to the pump. Code the wires for reconnection after installation. 2. The control panel is preferably mounted in a cool, dry environment. Installation and connections are specific to the control panel. Control panels should be installed and serviced only by a qualified electrician (Refer to Figure 2, page 10). 4-3 STEPS TO BE TAKEN BEFORE ENERGIZING 1. Retighten all field-made connections. Retighten all factory-made connections. These may have loosened due to shipping and handling vibrations. 2. Check the security of mounting hardware. 3. Check the enclosure to see that it has not been damaged in such a manner as ...

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