Lorentz PS200 Solar Pumping Planning Guide

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BERNT LORENTZ GmbH & Co. KG Kroegerskoppel 7, 24558 Henstedt-Ulzburg, Germany, Tel. +49 (0) 4193 7548 - 0, Fax - 29, www.lorentz.de
Errors excepted and possible alterations without prior notice.
7 Operating the Pump ........................................................................ 28
8 Trouble Shooting .............................................................................. 30
8.1 If The Pump Does Not Run .......................................................................... 30
8.2 Inspect The System ...................................................................................... 31
8.3 Electrical Testing ......................................................................................... 32
8.4 If The Pump Runs But Flow Is Less Than Normal ........................................... 34
9 Electrical Testing Illustrated ............................................................ 34
9.1 Testing the Solar Array (DC) ......................................................................... 35
9.2 Testing the pump circuit (motor circuit running current and resistance) ......... 36
9.3 Testing the low-water probe circuit .............................................................. 36
9.4 Testing the full-tank float switch (or pressure switch) circuit ......................... 37
10 Maintenance .................................................................................... 38
10.1 Controller and Pump ................................................................................... 38
10.2 Solar Array .................................................................................................. 38
10.3 Electrical Wiring .......................................................................................... 38
11 Standards, Environmental and Temperature Specifications ............ 38
12 Reference Section ............................................................................ 39
12.1 Principles of Operation ................................................................................ 39
12.2 Helical Rotor Models ................................................................................... 40
12.3 Water Pipe Sizing Chart .............................................................................. 41
12.4 Wellhead Assemblies for Drilled Wells .......................................................... 42
12.5 Water Storage for Solar Water Pumps .......................................................... 43
12.6 Monitoring a Solar Pump System ................................................................. 44
12.7 Freeze Protection for Solar Water Pumps ...................................................... 44
12.8 Selecting and Using Meters for Electrical Testing .......................................... 45
12.9 Measuring Solar Energy Intensity ................................................................. 45
12.10 Glossary of Solar Electricity and Water Pumping ........................................... 46
12.11 Calculating Pumping Efficiency and Power Requirement .............................. 48
12.12 System Wiring Diagram for Solar-direct (Non-battery) Systems ...................... 49
12.13 System Wiring Diagram for Battery Systems ................................................. 50
13 System Report ................................................................................. 51
13.1 System and Components ............................................................................. 51
13.2 Installation ................................................................................................. 51
14 Recent Updates ................................................................................ 52
1 Introduction ....................................................................................... 4
2 Warnings ............................................................................................ 4
3 Installing the Solar Array ................................................................... 6
3.1 Location of the Solar Array ............................................................................ 6
3.2 Solar Array Assembly Methods ....................................................................... 6
3.3 Solar Array Mounting Rack ............................................................................ 6
3.4 Orienting the Solar Array to Solar South ......................................................... 6
3.5 Setting the Solar Array Tilt Angle .................................................................... 7
4 Electrical Installation ......................................................................... 8
4.1 Controller, Junction Box and Conduit ............................................................. 8
4.2 Grounding and Lightning Protection ............................................................ 11
4.3 Solar Array Wiring ....................................................................................... 12
4.4 Solar Array Disconnect Switch in the Junction Box ........................................ 13
4.5 Junction Box (Controller Input) Wiring ......................................................... 13
4.6 Maximum RPM Setting ............................................................................... 14
4.7 Submersible Pump Cable and Splice ............................................................ 14
4.8 Wiring the Pump ......................................................................................... 15
4.9 Wiring Order for Correct Rotation ................................................................ 15
4.10 Low-Water Probe for Dry-Run Protection ..................................................... 16
4.11 Automatic Control For Full-Tank Shutoff ...................................................... 17
4.12 Battery-Based Systems ................................................................................ 19
4.13 Pressurizing Systems ................................................................................... 20
5 Preparing to Install the Pump .......................................................... 21
5.1 Warnings for Handling Helical Rotor Pumps ................................................. 21
5.2 Assembling the Rotor on the Motor Shaft .................................................... 21
5.3 Drop Pipe ................................................................................................... 22
5.4 Safety Rope and Binding ............................................................................. 23
5.5 Installation in a Surface Water Source .......................................................... 24
5.6 Deep Well Setting — How Deep? ................................................................ 24
5.7 Coping with Dirty Water Conditions ............................................................ 25
5.8 Utilizing a Low-Production Water Source ..................................................... 25
5.9 Installing the Pump Under a Windmill or Hand Pump Cylinder ...................... 26
6 In-well Assembly and Installation .................................................... 26
6.1 Rubber Spacers ........................................................................................... 26
6.2 Machine Installation ................................................................................... 26
6.3 Hand Installation ........................................................................................ 27
6.4 Sanitizing the Well ...................................................................................... 27
Contents

Lorentz PS200 Specifications

General

Brand	Lorentz
Model	PS200
Category	Water Pump
Language	English