Pentair EQ SERIES important safety instructions Electrical Requirements and Field Wiring, cont’d

Page 14
Electrical Requirements and Field Wiring, cont’d.

8

Electrical Requirements and Field Wiring, cont’d.

Manual background CAUTION — Some single-phase pumps may contain an internal thermal protector designed to temporarily stop the pump if the motor exceeds a preset temperature. The pump will automatically restart when the motor temperature falls to a preset limit. Always disconnect power before working on the pump to eliminate the possibility that the pump could start unexpectedly.

Three-phase pumps do not contain an internal thermal protector and must be externally protected by an appropriately sized protective device commonly referred to as a starter. Improper sizing of the starter can result in the motor being destroyed or in frequent tripping of the starter.

4.It is important that all portions of the electrical circuit including the conductors that connect the electrical panel to the pump motor are properly sized based on the nameplate information on the pump.

5.Following the National Electrical Code and any local electrical codes connect the grounding conductor and electrical supply conductors to the motor. Ensure that the pump is properly grounded per the above codes utilizing the grounding screw identified in the terminal box of the pump motor.

6.It will be necessary to confirm that the rotation of the motor is in the correct direction on all three-phase pump units and on certain single-phase pump units. Check wiring diagram to determine if motor can be field wired to rotate in both directions. Checking rotation by energizing the pump for one second and then watching the rotation through the back of the motor as it coasts to a stop. Ensure that the rotation matches the direction arrow on the pump. Operating a pump with the incorrect rotation can cause many problems including poor priming, diminished water flow, excessive noise, overloading of the motor and premature failure of the pump.

Manual background CAUTION — Always fill the pump with water before energizing the pump motor. Operating the pump without water can damage the pump seal within a few seconds.

EQ Series Pump Installation and User’s Guide

Page 13 Page 15
Image 14
Page 13 Page 15
Contents IMPORTANT SAFETY INSTRUCTIONS READ AND FOLLOW ALL INSTRUCTIONS High Performance Commercial PumpInstallation and Users Guide EQ SERIESCustomer Service Web siteTable of Contents EQ Series Pump Installation and User’s GuideImportant Notice IMPORTANT SAFETY PRECAUTIONSConsumer Information and Safety IMPORTANT SAFETY PRECAUTIONS continued General Installation Information Section Introduction EQ Series High Performance Commercial Pump OverviewGeneral Features Additional FeaturesMechanical Installation and Pressure Testing Section InstallationInstalling the EQ Series Pump Mechanical Installation, cont.’d Pressure Testing Pressure Testing, cont’d Section Electrical Requirements Electrical Requirements and Field WiringThis section describes how to secure and wire the EQ pump Electrical Requirements and Field Wiring, cont’d This section describes how to prime the EQ pump Section Initial Operation of PumpEQ Series Pump Installation and User’s Guide Section Maintenance Cleaning of the Strainer BasketPreventative Maintenance Section Servicing Disassembly Assembly Problems and Corrective Actions Section TroubleshootingNote Turn off power to unit prior to attempting service or repair Section Replacement Parts Illustrated PartsPENTAIR POOL PRODUCTS, INC 50HZ PUMP PERFORMANCE CURVES EQ SERIES Section Pump Technical DataPENTAIR POOL PRODUCTS, INC 60HZ PUMP PERFORMANCE CURVES EQ SERIES WATEREngineering Specifications SAVE THESE INSTRUCTIONSDimensional Data ALL DIMENSIONS ARE IN INCHESPage P/N 350061 Rev. E 1/24/06
Top Page Image Contents