General Functionality ESIE05-032–22 Part 2 – Functional Description312451.15 Freeze Prevention FunctionPurpose In order to avoid formation of ice on the indoor unit heat exchanger in cooling and dry mode, thesystem automatically starts up a freeze prevention cycle when a number of specific conditions arefulfilled.Freeze Preventionstart conditionsFreeze prevention start decided by the indoor unit (factory setting):Freeze Preventionstop conditionsFreeze prevention stop decided by the indoor unit (factory setting):P Indoor coil temperature > 7°C for 10 minutes continuousParametersReference Please refer to "Outdoor Field Settings" in Part 4 "Commissioning and Test Run" for details on possibleuse of EDP room settings in case of low latent heat applications. (See page 4-21)P Indoor coil temperature ≤ -1°C for 40 minutes accumulatedP Indoor coil temperature < A°C for 1 minute continuousP Compressor is running for minimum 8 minutes sinceoperation start or end of previous freeze up cycle.OR&FAQ FHQ All except FAQ & FHQA -1°C -3°C -5°C
