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Franklin Electric MH Series User Manual

Franklin Electric MH Series
52 pages
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MH Series Horizontal
Multi-stage Pump
Owner's Manual

Other manuals for Franklin Electric MH Series

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Franklin Electric MH Series Specifications

General IconGeneral
Insulation ClassF
ApplicationWater transfer, irrigation
Liquid TemperatureUp to 40°C (104°F)
Maximum Operating Pressure10 bar (145 psi)
Impeller MaterialStainless steel
Phase3
Shaft MaterialStainless steel
ModelMH Series (various models with different performance characteristics)

Summary

Before Getting Started

Safety Alerts and Precautions

Understand safety alerts (DANGER, WARNING, CAUTION, NOTICE) and follow essential precautions for safe operation.

Introduction

Pump Features Overview

Details the key features of the MH Series Horizontal Multi-stage Pump, including materials and motor specifications.

Installation

Pump Location Considerations

Guidance on selecting a suitable location for pump installation, considering environmental factors and accessibility.

Indoor Pump Installation Guidelines

Recommendations for indoor pump placement, emphasizing protection from elements and ease of servicing.

Piping System Design

Suction Piping Practices

Guidelines for suction piping, including offset considerations, friction loss, and pipe slope for optimal performance.

Discharge Pipe Sizing

Recommendations for selecting discharge pipe sizes to minimize friction loss based on flow rate and pipe diameter.

Shallow Well Installation Procedure

Instructions for shallow well installation, including pipe requirements, foot valves, and check valves for depths up to 10 feet.

Plumbing Configurations

Flooded Suction Booster Setup

Guidance on using the pump for boosting municipal water pressure, including safety limits and pressure relief valve recommendations.

Installation Records and Electrical Setup

Electrical Installation Safety

Important safety warnings and instructions regarding hazardous voltage and proper electrical connections for the pump.

Motor Configuration

Dual Voltage Adjustment

Procedure to change the motor voltage between 115V and 230V, including identification of factory preset.

Essential Motor Specifications

Key pump motor facts such as RPM, phase, voltage, and horsepower ratings, with wiring notes.

Pump Operation and Maintenance

Priming the Pump

Step-by-step instructions for priming the pump, emphasizing filling the pump case and suction pipe with water before starting.

Lubrication Requirements

Crucial advice on pump lubrication, stating that water is the only lubricant and running the pump dry is prohibited.

Service and Draining Procedures

Pump Draining Instructions

Steps for draining the pump case to prevent freezing or for service, with notes on other system parts.

Disassembly and Reassembly

Steps for disassembling the pump, advising on cleaning seals and avoiding lubrication of shaft seal faces.

Troubleshooting Common Issues

No Water Delivery or Pressure

Steps to resolve issues where the pump fails to deliver water or pressure, checking priming and connections.

Low Pressure Diagnosis

Diagnosing and fixing low pressure problems by verifying voltage, impeller, and detecting air leaks.

Low Capacity Causes

Addressing low capacity by checking water level, pipe size, impeller condition, and pipe blockages.

Motor Overheating Solutions

Identifying and resolving motor overheating by checking voltage, wiring, and ventilation.

Idle Pressure Loss Resolution

Troubleshooting pressure loss when the pump is not in use, by inspecting for leaks or well water level.

Motor Start Failure

Steps to resolve motor starting issues, including checking switches, fuses, and electrical connections.

Air Logging and Pipe Integrity

Resolving air logging by checking for pipe air leaks and verifying water level.

Cavitation and Noise Mitigation

Addressing pump noise and cavitation by checking water level, pipe size, and suction pipe condition.

Performance Data Tables

15 GPM Pump Performance

Performance data for 15 GPM pumps, showing capacities and total head for various horsepower ratings.

30 GPM Pump Performance

Performance data for 30 GPM pumps, detailing capacities and total head across different horsepower models.

45 GPM Pump Performance

Performance specifications for 45 GPM pumps, including capacities and total head for specified horsepower.

Friction Loss Data Tables

1" Pipe Friction Loss Chart

Friction loss data for 1-inch pipes (Schedule 40, Type L Copper) at various flow rates and velocities.

1-1/4" Pipe Friction Loss Chart

Friction loss charts for 1-1/4-inch pipes (Schedule 40, Type L Copper) at different flow rates and velocities.

1-1/2" Pipe Friction Loss Chart

Friction loss calculations for 1-1/2-inch pipes (Schedule 40, Type L Copper) across various flow rates and velocities.

2" Pipe Friction Loss Chart

Friction loss data for 2-inch pipes (Schedule 40, Type L Copper) at different flow rates and velocities.

Pump Parts Identification

Repair Part Order Codes

Detailed breakdown of pump parts with grouping identifiers and corresponding order codes for various MH Series models.

Product Limited Warranty

Warranty Terms and Limitations

Outlines the warranty coverage, exclusions, limitations, and conditions for defective products.

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