Pentair SHURFLO AQUA KING II 4148 Series User Manual

SHURFLO
®
AQUA KING
™
II FRESH WATER PUMPS
PREMIUM 4.0 GPM AND SUPREME 5.0 GPM
MODEL SERIES 4148 & 4158
911-1026 REV. F 1
The NEW SHURFLO AQUA KING™ II delivers smooth and high-powered fl ow.
SHURFLO’s New 4148 and 4158 series fresh water pump design was created with unique over-molded single-piece diaphragm
and internal by-pass, assuring long life and top performance in all plumbing systems. Designed as the next legendary pump to
exceed the expectations of our customers, the 4148 and 4158 series pumps are constructed for high fl ow demand, smooth fl ow
and no rapid cycling. Our quality reputation has been built on the reliability and dependability of every pump we build. The 4148
and 4158 series fresh water automatic demand pumps are quiet, thermally protected and can run dry without damage.
INSTALLATION TIPS
❚ Properly sized plumbing
❚ Mount on a solid surface within 6 feet
of tank
❚ Properly sized wiring
❚ Use proper fuse size
❚ Install strainer on pump inlet
❚ Dry and accessible location
❚ Minimize plumbing elbows and valves
❚ Flexible high-pressure hose on inlet
and outlet
OPERATION TIPS
❚ Do not adjust switch or bypass set-
tings without contacting customer
service
❚ Pump is designed for intermittent
operation only
❚ Turn off power to the pump when boat
is unattended
❚ Keep your strainer clean for ultimate
pump performance
❚ Do not use pump for Reverse Osmosis
fi ltration system
APPLICATION
❚ Marine 12V DC or 24V DC fresh water
systems—see pump label for rated
voltage
❚ Multi-Fixture, up to 4 fi xtures
❚ General fresh water transfer
❚ Pressurized water systems in cabins
FEATURES
❚ 4 independent chambers
❚ Co-Molded diaphragm
❚ Adjustable switch and by-pass
❚ Self-priming up to 6 feet
❚ Dry run capability
❚ Sealed switch
❚ Sealed motor
❚ Corrosion resistant electro coated
motor
❚ Thermally protected
❚ Ignition protected, CE

Pentair SHURFLO AQUA KING II 4148 Series Specifications

General

Model	4148 Series
Pump Type	Diaphragm
Duty Cycle	Intermittent
Voltage	12V
Shut-Off Pressure	55 PSI

Summary

SHURFLO AQUA KING II Fresh Water Pumps Overview

Pump Features

Details key features like independent chambers, co-molded diaphragm, adjustable switch, dry run capability, and sealed motor.

Installation Tips

Provides guidance on proper plumbing, mounting, wiring, fuse size, and strainer installation for optimal performance.

Operation Tips

Offers advice on switch settings, intermittent use, power shut-off, strainer cleaning, and system compatibility.

Pump Applications

Lists suitable uses including marine 12V/24V DC systems, multi-fixture setups, and general fresh water transfer.

Installation and Mounting

General Installation Guidelines

Focuses on achieving quiet, easy-to-maintain installation with good flow and low back pressure.

Mounting Recommendations

Details placement for best performance, pump life, ventilation, and vibration reduction.

Electrical Connections

Covers circuit protection, recommended switches, and power shut-off procedures when unattended.

Plumbing Requirements

Emphasizes using flexible hoses, proper strainer, and adequate inner diameter for noise and vibration reduction.

Operation and Maintenance

Understanding the By-Pass Function

Explains the by-pass mechanism for smooth flow and provides guidance on adjustment.

Sanitizing Procedures

Outlines the steps for periodic system sanitizing using bleach to maintain performance.

Normal Operation Details

Describes intermittent duty, by-pass operation, flow variation with voltage, and safety reminders.

Winterizing the Pump System

Provides instructions for draining the pump and plumbing to prevent freeze damage and voiding warranty.

Regular Maintenance

Highlights checking strainers, sanitizing, winterizing, and plumbing tightness as key to pump longevity.

Troubleshooting and Service

Troubleshooting Vibration and Noise

Addresses vibration issues from plumbing, strainers, or mounting surfaces.

Pump Will Not Start / Blows Circuit

Diagnoses issues related to electrical connections, fuse, breaker, or thermal breaker.

Pump Will Not Prime / Sputters

Troubleshoots problems like clogged strainers, air leaks, or restricted plumbing.

Pump Will Not Shut-Off

Identifies causes for the pump running continuously with closed nozzles.

Noisy or Rough Operation

Covers causes of noise like loose plumbing, restricted inlets, or mounting surface issues.

Leaks from Pump Head or Switch

Diagnoses leaks from loose screws or a ruptured switch diaphragm.

Service Kits

Lists available service kits for pump components like check valves and diaphragms.