Monarch Industries NSPHE

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231253eR11 0503

OWNER'S

MANUAL

NSPHE

Lawn and Turf Pumps

Electric Motor Driven

PumpBiz.com

WARNING - RISK OF ELECTRICAL SHOCK

• Have an electrician provide electrical power to the motor.

• Motor must be grounded and terminal cover in place to reduce

electrical shock hazard.

• Keep motor operating area as dry as possible.

• A ground fault interrupter (GFI) protected circuit is recom-

mended for use with any electrical device operating near water.

• Always disconnect power before servicing.

• Not investigated for use in swimming pool areas.

SAFETY WARNINGS

BEFORE OPERATING OR

INSTALLING THIS PUMP, READ

THIS MANUAL AND FOLLOW

ALL SAFETY RULES AND

OPERATING INSTRUCTIONS.

WARNING - ELECTRICAL PRECAUTIONS

All wiring, electrical connections, and system grounding must

comply with the National Electrical Code (NEC) and with any local

codes and ordinances. Employ a licensed electrician. For non-

thermally protected motors use with approved motor control that

matches motor input in full load amperes with overload element(s)

selected or adjusted in accordance with control instructions.

SAFETY

CAUTION

• DO NOT OPERATE THIS PUMP DRY!

• Review instructions before operating.

CAREFULLY READ THESE SAFETY

MESSAGES IN THIS MANUAL AND ON PUMP.

APPLICATION

This pump is suitable for installations where the vertical distance

from the pump to the water level does not exceed 25 ft. In all

installations, friction losses in the suction pipe must be taken into

consideration.

Flow in GPM Flow in L/min.

at total head (ft.) at total head (Meters)

HP 25 50 75 100 125 150 10 20 30 40 50

3/4 46 36 20 163 102

1 53 44 32 10 189 136 45

1-1/2 59 50 37 20 212 159 87

2 90 79 62 38 329 261 155

3 110 92 71 40 371 276 110

5 141 121 98 66 560 466 348 148

PERFORMANCE

INSTALLATION

PUMP LOCATION: The pump should be installed in a clean, dry

and ventilated location which provides adequate drainage and

room for servicing and protection from freezing temperatures. It

should be bolted down evenly on a good foundation, preferably

concrete, to prevent the development of unnecessary stress.

Locating the pump as close as possible to the source of water

supply reduces the friction losses in the suction pipe and provides

for maximum capacities.

SUCTION PIPE: It is recommended that only new clean pipe or

hose be used and the size be the same as that of the pump

suction tapping. If the pump is installed any appreciable distance

away from the source of water supply, the suction pipe should be

increased by one size. The suction pipe must always slope

upwards from the water source to the pump to avoid air pockets

in the line. In cases where the pump has to be reprimed often and

it is not necessary that a lot of water be delivered, it is advisable

to use a 90° or 45° elbow on the suction line. This enables the

pump to prime sooner and also prevents kinking of the hose. In

cases where a maximum volume of water is required over a pro-

FOR DUAL VOLTAGE MOTORS:

Voltage change instructions are located on motor label or on

wiring access cover.

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Summary

Safety Warnings

Caution Do Not Operate This Pump Dry

Ensure pump is reviewed for operating instructions before use to prevent damage.

Warning Electrical Precautions

All wiring and grounding must comply with NEC and local codes, employing a licensed electrician.

Warning Risk of Electrical Shock

Ensure motor is grounded, terminal cover in place, and area is dry for safety.

For Dual Voltage Motors

Voltage change instructions are on the motor label or wiring access cover.

Application

Performance

Installation

Pump Location

Install pump in a clean, dry, ventilated location with adequate drainage and room for servicing.

Suction Pipe

Use new clean pipe, same size as pump tapping, sloping upwards to avoid air pockets.

Operation - Priming the Pump

Warning Do Not Run the Pump Before Priming

Priming is essential to prevent permanent damage to the seal and impeller.

Priming the Pump

Fill casing with water via priming plug; pump primes itself if check valve functions.

Priming Under Pressure

Use a check valve and air bleeder on discharge line for priming under pressure.

Impeller Rotation

Impeller must rotate counter-clockwise; reverse leads for three-phase motors if needed.

Starting the Pump

Never operate dry; if overheated, replace casing water with cold water.

Draining

Drain pump completely for freezing temperatures; run briefly to ensure impeller is dry.

Storage of Pump

Drain liquid, add rust inhibitor, keep motor dry. Check and prime before reuse.

Grounding the Motor

Must be wired and maintained per NEC/local codes; use permanent ground connection.

Single Phase

Determine incoming voltage, use 230V if possible, connect wiring per motor diagram.

Three Phase

Three phase motors require magnetic starters and run direction depends on wiring.

Maintenance

Lubrication

Pump requires no lubrication; refer to motor manufacturer for electric motor lubrication.

Replacing Mechanical Seal

Detailed disassembly and reassembly instructions for replacing the mechanical seal.

Precautions

Check impeller rotation after reassembly; do not remove shaft flinger.

Troubleshooting Guide

Failure to Pump

Addresses issues like improper priming, low speed, high head, or excessive suction lift.

Reduced Capacity and;or Head

Covers problems like air leaks, clogged impeller, strainer issues, or worn impeller.

Pump Loses Prime

Diagnoses causes such as air leaks, excessive lift, or low water level uncovering piping.

Mechanical Troubles and Noise

Troubleshooting for bent shafts, damaged bearings, or improperly supported piping.

Limited Monarch Industries Warranty