Liquid Ring Vacuum System Troubleshooting Guide
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WE SUGGEST YOU CHECK THIS:
A. Your makeup water pressure may be too high. If this is the case, the high pressure water may be forced through the pump, causing excessive water use.
B. The solenoid in the makeup water line may be stuck open. Many systems are equipped with a solenoid line in the makeup water line that is designed to open and close when the pump needs water, either for more cooling or for basic operation due to low water level. If the solenoid is stuck open, water will continually flow, whether the pump needs it or not, causing a waste of makeup water.
C. Level switch malfunction. Many systems are equipped with a level switch in the water reservoir or separator. Its job is to indicate when the water level is too low, causing the inflow of makeup water. If the switch is defective, it could be triggering the makeup water solenoid to remain open, even if there is an adequate level of water in the reservoir.
D. There could be a restriction in the vacuum discharge line. Such a restriction, such as a plugged vent line or significant water build up in the vent line, could create excessive back pressure, resulting in water loss.
E. You may be operating your system in too low a vacuum range for its intended operation. This will cause excessive water discharge from the vacuum pump.
F. System is a once-through configuration. Many older systems are configured for once through operation, but can be converted to either partial recirculation or total recirculation. Partial recirculation uses available city water to join some discharge water to maintain temperature. Total recirculation systems require a source of chilled water to maintain temperature.
