Located at the end of the pump there is an arrow embossed into the SS head of the pump. This arrow will indicate the design rotation. You pump MUST be spinning the same direction. Turn power back on and recheck rotation. On Single-phase chillers, if your pump is running the wrong direction, please call the factory for further instruction. On PACT and EST systems with integrated water storage tanks a common problem is a plugged strainer located just above the tank recirculation pump discharge.
Before processing with any other steps, turn the power to the chiller off and clean the strainer. These valves are shipped in the closed position from the factory.
Make sure ALL wire connections on the back of the microprocessor are tight. If there is any excess wire shielding on the gray transducer cables showing, tape the area with black electrical tape. Make sure that NO stray wires from the micro are touching the case or any other wire connection on the back of the micro.
Is the refrigeration system low on charge? A quick why to determine a low charge is to install a manifold gauge set on the high and low side of the refrigeration system. After resetting the chiller and compressor starts, carefully watch your gauges. If both pressures are low, a leak inspection may be advisable. If above does not solve the low-pressure trip issue it is recommended that you call the factory for further support at Product Categories.
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