2U14CS1ERA-SM Functions and control24Domestic Air ConditionerRefrigeration/dehumidification mode::Serial No. Temperature scope Frequency limitation1 Twh̰ 16 Max_hz1 34HZ2 16̰ 24 Max_hz2 40 HZ3 24̰ 32 Max_hz3 62 HZ4 32̰ 44 Max_hz4 68 HZ5 Twh>44 Max_hz5 40 HZRemarks: the above are not only the maximum frequency limitations of the complete appliancewhich are affected by the environment, but also the maximum ability limitation of the system.When the starting ability is not the maximum, its maximum frequency limitation is calculated bythe following equations:The frequency limitation which is affected by the temperature and under the condition of actualability˙the actural running system ability*the maximum frequency which is limited by thetemperature and under the condition of maximum ability/the maximum designing ability of thesystemT=ě˄Ti*Pi˅/ěPi (Ti=|Tst_i-Tnh_i the indoor environment temperature| ;Pi˙i theability of the indoor unit)Refrigeration/dehumidification:Heating mode˖K=ěKi/the number of running machinesThe calculation of the actual output frequency: when there is no healthy airflow: F =F-ED-*hPhKWhen the healthy airflow has been set: F =F-ED-*hPhK˄airflow speed˅hK˄healthy airflow˅When refrigerating, it is needed to satisfy ˢˉ˩INˉ̀ < F<ˢˉ˩˝˴ˉ̀When heating, it is needed to satisfy ˢˉ˩INˉr< F<ˢˉ˩˝˴ˉr5.2.2˖The outdoor fan control (exchange fan)When the fan is changed among every airflow speed (including stop blowing), in order to avoidthe airflow speed from skipping frequently, it must be kept under each mode for over 30 seconds,and then it can be changed to another mode (when refrigerating, the time is changed to 15T <1 ˙1 ˙2 ˙3 >=4The percentage ofthe rated frequency P50% 70% 100% 120% 140%T <1 ˙1 ˙2 ˙3 >=4The percentage of therated frequency P50% 70% 100% 130% 180%The indoor setairflow speedBreeze Low Medium High Strong Quiet HealthyairflowThe percentageof the ratedfrequency Ki70ˁ 80% 90% 100% 120% 70% 70%
