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Table of Contents
Related Manuals for SUNPUMPS SCS Series
Summary of Contents for SUNPUMPS SCS Series
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Page 2: Table Of Contents
Controller does not turn on Controller turns on but pump does not run Pump is running but the output is low Pump draws excessive current Before Calling Sun Pumps Before Calling SunPumps ………………….………………………... 4.1 Technical Specifications ……………………………………………. 5.0 Pump Controller Dimensions and Weights Warranty Statement ………………….………………………………... -
Page 3: Introduction
1.0 Introduction Thank you for selecting a SunPumps SCS series solar pump system. The SCS series pump and PCA series pump controller are the key components to high quality solar powered pumping systems. Their stand-alone, pollution free and low noise operation makes them an ideal solution for remote homes, wildlife and stock watering problems without violating the environment. -
Page 4: Controller Features
DC motor as well as various peripheral pump system signal devices. No other applications or DC power sources are recommended or warranted unless written approval is provided by the SunPumps factory... -
Page 5: Installation And Operations
3.0 Installation and Operation The following sections are outlined in a step-by-step format to guide you through the installation of a PCA series controller. Before installing any pump system, read all product manuals and review all system components to become familiar with the physical and electrical layout. -
Page 6: System Design Basics
This splice must be watertight. Improper sealing of the splice will cause poor pump performance and may cause damage to the system. A SunPumps splice kit S-703 is recommended for this watertight connection. Never install a pump in a well that has had an oil-lubricated line shaft turbine in it without cleaning it first. - Page 7 Refer to friction loss tables for your specific application. (There is a Friction Loss Program on the SunPumps web site in the engineering section at www.sunpumps.com.)
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Page 8: Pump Installation
3.4 Pump Installation 1. The well should be clean and disinfected before the pump is installed. You should always clean and develop a new well before installing the pump. 2. Write the pump, motor and controller model number and serial number in the space provided on the last page in this Instruction Manual. -
Page 9: Wiring
Ensure the wire sizes are of adequate diameter (gauge) to minimize voltage drop. Please refer to a DC voltage loss table or call your SunPumps dealer for assistance. All other system equipment should be installed before proceeding with wiring the controller. - Page 10 Figure 2 Controller Wiring Diagram (Power Connections)
- Page 11 1. Switch the controller to the OFF position. 2. Connect ground rod conductor to the controller chassis ground block (See Figure 2). 3. Connect solar module frame ground conductor and the pump ground conductor to controller chassis ground block (See Figure 2). 4.
- Page 12 Figure 3 Controller Wiring Diagram (Auxillary)
- Page 13 Figure 4 Dip Switch Settings Switch Switch Description Function Default Setting Number Position Remote Switch Logic Turns pump off when terminals connect. Remote Switch Logic Turns Pump on when terminals connect. Low Water Cutoff Logic Turns pump off when terminals connect. Low Water Cutoff Logic Turns pump on when terminals connect.
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Page 14: Controller Settings
Controller Settings The PCA series controllers have several settings (see figure 3). Most features include system configuration adjustments, some of which are user selectable by an eight position DIP-switch located on the face of the controller. Switch 1 is the Remote Switch Logic. With this switch off (down), terminals “RS+” and “GND”... -
Page 15: Remote Switch
position, the low water cutoff circuit expects not to touch water. If water comes into contact with it, and completes the circuit to ground, the pump will shut off until the water is removed and the delay timer times out. A three minute timeout is default for this feature but is modifiable by switches 3 and 4 to 10 or 30 minutes respectively. -
Page 16: Troubleshooting
LPLW Adjustment The Low Water Cut-Off Circuit and the Low Power Shut-Down circuit are adjusted using the same trim pot labeled “LP Adj.” on the controller. The default is the arrow pointing straight up. This is sufficient for most systems but adjustment will maximize the life and output of your system. -
Page 17: Controller Does Not Turn On
performing any of these tasks, or do not fully understand the system, it is better to call than to guess. Before calling please go through the section below labeled “Before Calling Sun Pumps” and complete the steps there. CONTROLLER DOES NOT TURN ON 1. -
Page 18: Pump Is Running But The Output Is Low
4. If the sixth LED, labeled “Over Current” is on, the controller has exceeded its current limit and shut down. Turning the controller off then on again will reset this fault. If the controller continues to need high current, it will turn itself off again. Verify the nominal voltage of your array. -
Page 19: Before Calling Sunpumps
BEFORE CALLING SUNPUMPS If at all possible when calling Sun Pumps for technical support there are a few things which will help to speed up the process and help us determine the cause of and solution to the system failure. The best way to get help is to call while you are physically at the location of your pump, have good sunlight, and have a multimeter and a screwdriver with you. -
Page 20: Technical Specifications
Technical Specifications Model Max Input Voltage Max Power PCA-60BLS-M2 PCA-120BLS-M2 1000 Maximum ambient temperature is 120 F. Controller Dimensions and Weight Width Height Length Weight Model Inches Inches cm Inches cm Pounds PCA-60BLS-M2 16.1 10.7 19.5 PCA-120BLS-M2 16.1 10.7 19.5 For future reference, please list your system data before installing the pump. -
Page 21: Warranty Statement
(24) months after the original date of purchase, but not to exceed eighteen (30) months from the date of manufacture. At its option, SunPumps will repair or replace any SunPumps product, which has failed due to a defect in material or workmanship during this warranty period. A PCA series controller must be installed in conjunction with the pump to validate the warranty.
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