Haier HSU109VHG-G Service Manual

Also see for AS09TA2HRA: Operation manual Operation manual Service manual

Contents

Haier HSU109VHG-G Service Manual Manual pdf 26 page image

24 Domestic air conditionerThe calculation of the actual output frequency: when there is no healthy airflow: F =F-ED-* P KWhen the healthy airflow has been set: F =F-ED-* P K airflow speed K healthy airflowWhen refrigerating, it is needed to satisfy IN < F<When heating, it is needed to satisfy IN r< F< r5.2.2 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 15seconds).5.2.2.1 The outdoor fan control when refrigerating or dehumidifyingAfter the compressor is started for 5 seconds, the outdoor fan is started at the medium speed atfirst, after 30 seconds,it begins to control the airflow speed according to the temperatureconditions of the outdoor environment.5.2.2.2 The outdoor fan control when heatingThe temperature of the outdoorair TaAirflow speedTa 22 Low19 Ta<22 Keeping the speed16 Ta<22 Medium14 Ta<16 Keeping the speedTa<14 High5.2.3 The control of the outdoor electronic expansion valveWhen starting the compressor: the opening size of the valve must be guaranteed to have enteredinto the standard opening size, and then the compressor can be started.When refrigeration is in vain (the machine is shut down or is in the state of retrograde operation),the opening size of the expansion valve of the indoor unit is 5 steps;When heating is in vain, the opening size of the expansion valve of the indoor unit is 55 steps;The temperature of theoutdoor air TaThe temperature of the outdoorcoil TeAirflow speedTa 30 High26 Ta<30 Keeping the speed24 Ta<26 Medium23 Ta<24 Keeping the speed5 Ta<23 LowTa<5 15 Te Low15 >Te StopFunctions and control