Freeze Prevention SiUS34-801A_b294 Indoor Unit7. Freeze PreventionFreezePrevention by OffCycle (IndoorUnit)When the temperature detected by liquid pipe temperature thermistor (R2T) of the indoor unit heatexchanger drops too low, the unit enters freeze prevention operation in accordance with thefollowing conditions, and is also set in accordance with the conditions given below.When freeze prevention is activated, the electronic expansion valve is closed, the drain pump turnsON and the fan tap is fixed to L air flow. When the following conditions for stopping are satisfied, itreturns.Conditions for starting freeze prevention: Temperature is 30.2°F or less for total of 40 min., ortemperature is 23°F or less for total of 10 min.Conditions for stopping freeze prevention: Temperature is 44.6°F or more for 10 min. continuously.[Conditions for starting when air flow direction is two-way or three-way]Conditions for starting: Temperature is 33.8ºF or less for a total of 15 minutes or 32ºF or less for 1minute continuously.23ºF32ºF44.6ºF30.2ºFt1 t2 t3 t432ºF44.6ºF10 min.(VG005)OR 10 min.10 min.Freeze prevention operationForced OFF by thermostatFreeze prevention operationForced OFF by thermostatt >40min.32ºF44.6ºF10 min.1 min.Freeze prevention operationForced OFF by thermostat33.8ºFt1 t2 t3 t444.6ºF10 min.Freeze prevention operationForced OFF by thermostatORt >15min.
