Samsung AVMKH020EA4 Service Manual

Also see for AVMBH020EA4: Service manual Owner's instructions Owner's instructions

Contents

Reference SheetSamsung Electronics13-1713-4-4 The heating test operation by S-NETJudge the test operation by use of the S-NET data obtained from the test operation. Before judgment, Judge the operation status by operating all of indoor units connected with the outdoor unit, and do 30 minutes afteroperation. Standard for the judgment of item is applicable 0˚C ~ 20˚C of outdoor Temp. and 24˚C below of indoor Temperature.If running conditions are out of this range, judge options are maybe differ from standards.1. Check the compressor discharge temperature(T-discharge). It is normal if the temperature is 70˚C ~ 110˚C- If the temperature is below 70˚C, it is over charge of refrigerant. And if it is over 120˚C, it may be a vacuum fail.2. Check the condensing temperature(T-cond). It is normal if the temperature 5˚C ~ 20˚C over than that of outdoor.3. Check the compressor suction temperature(T-suc). It is normal if the temperature is 0˚C ~ 20˚C4. Check the opening electronic expansion valve(E-valve) of outdoor unit. It is normal if it is ±100 step compared with the average value of the other E-valves.✳ If the opening of E-valve is over the allowance of standard value in 4), it is an short refrigerant.And if the opening of E-valve is below the allowance of standard value in 4), it is over charge of refrigerant.5. Check the temperature of compressor oil. It is normal If the temperature is 0˚C ~ 35˚C higher than that of outdoor.6. Check the opening of electronic expansion valve(E-valve) of indoor unit. The operation range is 0 ~ 480 step, and it operates at 350 ~ 450 step on heating. If the high head option is used by the change of option code of indoor unit, it operates at 200 ~ 480 step.RVMMH120✳✳✳RVMMH140✳✳✳RVMMH160✳✳✳1,000 step1,000 step1,000 step450 step450 step450 step400 step400 step400 step350 step350 step350 stepOutdoor unit ModelOutdoor Temperature7˚C -5˚C -10˚C -15˚C