MC-MP-SBD O wner’s Manual 39Ozonator Depending on system configuration, the ozonator can be onduring the filtering cycle, always on or it may operate at the sametime as the circulation pump. If a pump, blower or spa light isturned on manually, the ozonator automatically turns off andcomes back on 40 minutes after last active output has beenturned off. O n models without circulation pump, the ozonatorcomes on only during filter cycles.Depending on system configuration,the circulation pump could beeither on all the time or when heating and filtering only, except ifthe system has been programmed to Stand-By mode with theOn/Off key. If the spa is turned off while heater is still on, thecirculation pump will continue to run for 30 seconds to allowheater to cool down.Following a power failure, the display panel will continue flashinguntil any key is pressed. This feature notifies you that a powerfailure has occurred.The MC-MP-SBD is equipped with a sensor that monitors the airtemperature in the plumbing beneath the spa. If the systemdetects air cold enough to freeze water in the pipes, it will activatethe Smart Winter Mode for a 24-hour period. In this mode, ifpumps have not been turned on within 2 hours, the systemautomatically turns them on for 1 minute to prevent water fromfreezing in pipes.When pumps are operating in Smart Winter Mode, the "Filter"indicator will flash on the display.CirculationPumpPower-UpDetectionSmart WinterModeTemperatureDisplay UnitThe water temperature can be displayed in Fahrenheit (∞F) orCelsius (∞C) degrees. To toggle between ∞F and∞C, simply pressand hold Light key for 5 seconds.M C-M P-SBD FeaturesOperating Instructions