Haier 1U12BE2ERA Service Manual

Contents

Functions and controlDomestic air conditioner7. Functions and Control7.1 Main functions and control specification7.1.1 The operation frequency of outdoor unit and its control7.1.1.1 The operation frequency control of compressorThe operation frequency scope of compressor：Mode Minimun operation frequency Maximun operation frequencyzH09zH63gnitaeHzH08zH63noitaregirfeR7.1.1.2 The starting of compressorWhen the compressor is started for the first time, it must be kept under the conditions of58Hz,88Hz for one minute (the overheating protection of the outdoor unit air-blowing temperature,immediately decrease the frequency when the compressor is overflowing and releasing the pressure)，then it can be operated towards the target frequency. When the machine runs normally, there’s nosuch process. After starting the compressor for operation, the compressor should run according to thecalculated frequency, and every determined frequency for protection should be prior to the calculatedfrequency.7.1.1.3 The speeds of increasing or decreasing the frequency of the compressorThe speed of increasing or decreasing the frequency rapidly 1 -----------1HZ/secondThe speed of increasing or decreasing the frequency slowly 2 -----------1HZ/10seconds7.1.1.4 The calculation of the compressor’s frequency1）The minimum/maximum frequency limitationA．While cooling: F-MAX-r is the maximum operation frequency of the compressor; F-MIN-r is theminimum operation frequency of the compressor.B．While heating: F-MAX-d is the maximum operation frequency of the compressor; F-MIN-d is theminimum operation frequency of the compressor.2）The frequency limitation which is affected by the environment temperature.(Wh_c= environment temperature)Heating mode:Serial No. Temperature scope Frequency limitation1 Wh_F<10.4 Max_hz8 90HZ2 Wh_F<17.6 Max_hz7 90HZ3 Wh_F<28.4 Max_hz4 90HZ4 Wh_F<41 Max_hz5 85HZ5 Wh_F<50 Max_hz1 80HZ6 Wh_F<62.6 Max_hz2 70HZ7 Wh_F<68 Max_hz6 55HZ8 Wh_F≧68 Max_hz3 45HZRemarks: The above are the maximum frequency limitations of the complete appliance which areaffected by the environment, and they have nothing to do with the ability of the indoor unit.16