Pentair EQ SERIES User Manual download pdf (Page 9)

EQ Series Pump Installation and User’s Guide

Section 2

Installation

The following general information describes how to install the EQ Series pump.

Note: Before installing this product, read and follow all warning notices and instructions starting

on page ii.

Installing the EQ Series Pump

Only a qualified service person should install the EQ Series pump.

Mechanical Installation and Pressure Testing

Mechanical Installation

1. Carefully remove the pump unit and strainer pot assembly, if included, from its shipping package.

2. The pump will perform best when the suction and return head losses (Total Dynamic Head (TDH)) of the pool

system have been carefully determined and the correct pump model selected to fit these requirements. A pump

should be selected to operate near the center of its Performance Curve with as high an efficiency as possible.

It is also important that the Net Positive Suction Head Available (NPSHA) be greater than the Net Positive

Suction Head Required (NPSHR) at the design flow rate.

3. If it is not possible to determine accurate suction and discharge head losses (Total Dynamic Head (TDH)),

conservative plumbing practices should be strictly adhered to. This would include installing the pump as close

to the pool as possible and at approximately the same level as the pool water level. (See page iv., General

Installation Information, regarding when a strainer pot assembly is required.) Use large diameter pipe especially

on the suction line to keep flow velocities at or below 6 feet per second (fps). Flow velocities in the return

plumbing should not exceed 10 fps. Also keep elbows and tees to a minimum. Installations where the pump

is going to be installed more that 10 feet below or 5 feet above the pool water level must be evaluated by an

experienced professional to ensure that the pump will function correctly.

4. A solid flat foundation should be provided to support the pump. The area should be well drained so that the pump

motor will not be flooded under any circumstances. Ensure that adequate space and lighting around the pump

is provided for routine maintenance activities.

NOTE

Do not install the pump motor within 5 feet of the inside walls of the pool wall unless the pump bears the UL listing mark. UL listed pumps may be

installed within 5 feet of the inside walls of a swimming pool, spa or hot tub only if a solid copper bonding conductor not smaller than No. 8 AWG is

connected from a bonding lug wire connector on the motor to all metal parts of the swimming pool, spa or hot tub structure and to all electrical equipment,

metal conduit, and metal piping within 5 feet of the inside walls of the swimming pool, spa or hot tub.

5. It is good practice for most installations to install a valve on both the suction and return line so that the pump can

be isolated for routine maintenance. However, a valve, elbow or tee installed in the suction line should be no closer

to the front of the pump than 5 times the suction line pipe diameter. (i.e. 6 in. pipe requires a 30 in. straight run in

front of the suction inlet of the pump.)

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Pentair EQ SERIES User Manual Page 9

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