Hayward HCP Pump HCP Series LITCPOMA10 - Page 22

TROUBLESHOOTING/ ILLUSTRATIONS AND ELECTRICAL DRAWINGS CAUSE 3. SYSTEM A. PRESSURE REQUIRED BY SYSTEM AT DESIGN FLOW RATE EXCEEDS PRESSURE RATING OF PUMP B. OBSTRUCTION IN SUCTION PIPING C. PRESSURE RATING OF PUMP EXCEEDS PRESSURE REQUIREMENT OF SYSTEM AT DESIGN FLOW RATE D. SUCTION LIFT EXCEEDS 10'DESIGN MAXIMUM CORRECTIVE ACTION Compare pump pressure and flow rate against pump characteristic curve. Check for closed or partially closed valve in discharge piping system. Reduce system pressure requirement. Increase pressure capability of pump. Locate and remove obstruction. Compare pump pressure and flow rate against pump characteristic curve. Inspect discharge piping system for breaks, leaks, open by-pass valves, etc. If necessary, reduce flow rate by partially closing discharge valve. Locate pump closer (vertically) to water source. 12. Illustrations and Electrical Drawings Figure 1 20" 10" 20" 4" Figure 2 - 230V Connection Figure 3 - 460V Connection 22