Returned and found water in float switch Drain line is cleared but found system low on r-410a and more than likely the cause of system tripping on float switch. Also noticed that system was louder than an average 5 ton air handler. Checked static pressure to find return static high. System is running a total static of almost.8! Advised adding a return. Client approved quote and need to return to replace on warranty leaking evaporator coil and adding a return.