User manual CONTAX SDS INSTALLATION

[. . . ] (A SOLARJACK PC or PB series controller must be used as an interface between the power source and the pump on all systems). All new generation SDS series pumps are designed to meet the National Electric Code. The necessary changes have been made to all SOLARJACK pumps and controllers to meet this code. Section 2 INSTALLATION INSTRUCTIONS 2. 1 PUMP 2. la Before installing the pump, measure the depth and static water level of the well. [. . . ] 2. 3e Position the large shrink tubing over the entire joint making sure it is positioned over each side of the outer wire jacket. 2. 3f To check proper sealing of the splice and wire installation immerse the splice and wire in a container of water for ten minutes and then take a resistance reading between the water and each of the cable conductors. Connect one ohmmeter lead to the conductor and the other lead to a piece of metal immersed- in the same water. A lower resistance indicates an insulation leak that must be corrected. 2. 4 CONTROLLER ADJUSTING PROCEDURE NOTE: It is usually not necessary to adjust the controller since it has been pre-adjusted at the factory. 2. 4a This procedure should be performed with the panels at their normal operating temperature at mid-day. To maintain peak output throughout the year, readjust the controller in very hot and very cold weather or as necessary. 2. 4b With the system installed and pumping water, turn the panels away from the sun or cover the panels until the pump flow rate is reduced by approximately 50%. (LD+ and LD-) 2. 4d Turn the "panel voltage adjusting pot", located on the upper left side of the controller, until the highest possible voltage is obtained. (This will also be the highest flow rate). 12/06/99 4 2. 4e Return the panels to their normal position. 2. 5 ELECTRODE INSTALLATION (OPTION) 2. 5a With the pump and pipe stretched out on the ground and before installation into the well, (refer to step 2. 1b) cut the electrode wire to the desired lengths and install all three E1-S electrodes in the proper locations. 2. 5b The "ground electrode", terminal 3, must be in the water at all times and should be placed approximately two inches above the top of the pump. The "low water level electrode" terminal 1, is placed at the desired cut off point and is usually placed two to six inches above the ground electrode. The "high water level electrode", terminal 2, is placed at the desired turn-on level, but must be placed below the static water level and should be located no more than 20 feet from the low water electrode. NOTE: Wells with a high mineral content in the water and/or with cascading water above the electrodes may not be suitable for use with the low water cut-off circuit. Mineral deposits may collect on the electrodes insulating the circuits from the water. Section 3 FOR PROPER PUMP PERFORMANCE (Do not disassemble the pump during the warranty period. WARNING: IF THE PUMP IS DISASSEMBLED, USE EXTREME CAUTION AS THE MOTOR HOUSING MAY BE UNDER HIGH PRESSURE. 3. la For optimum pump performance make sure that the wire is sized properly for the length of run between the pump and the panels. Keep the distance from the PV panels to the pump as short as possible. For depths over 150 feet, higher wattage panels will help compensate for the additional losses in the longer wire lengths as well as the higher current requirements. 3. lb Make sure that the discharge pipe is sized properly for the length of run. [. . . ] If the resistance is higher than this, disconnect the pump at the splice above the pump and check again). The black motor lead is always negative and the red motor lead is always positive. If these leads are reversed increased motor current and decreased pump flow rates will occur. 4. 5 PUMP RAPID CYCLING 4. 5a If the low water cut-off circuit or high water cut-off circuit is being used, check to see if the high and low electrodes have been reversed. [. . . ]