SiBE34-802 Test OperationTest Operation 771.1.4.2 Procedures for adding refrigerantHow to connect the tank?When the refrigerant tank is connected and the specified operation is performed, theappropriate amount of refrigerant will be charged into the system. After charging, the system willstop automatically. The refrigerant must be charged according to the procedure describedbelow.Caution Make sure to turn ON the power 6 hours before starting the operation. This is necessary towarm the crankcase by the electric heater. Automatic charging is able to charge 6 kg/hour refrigerant at an outside temperature of 0°Cto 24 kg/hour refrigerant at an outside temperature of 35°C.The charging time depends on the amount of charged refrigerant and on the outsidetemperature. Automatic refrigerant charging is NOT possible if the following restrictions are exceeded: Outside temperature: 0°C DB~43°C DB Indoor temperature: 0°C DB~32°C DB Indoor unit connection capacity: 50%~130%Automatic refrigerant charging procedure1. Open the liquid and gas side stop valves completely.Note that valve A must be closed!2. Turn on the power of the outdoor unit and indoor units.Note When an indoor unit is connected to the refrigerant system and the indoor unit is turned off,automatic charging will fail.3. Make sure that the led on the PCB on the outdoor unit are as shown in the table below. Thisindicates that the system is operating normally.Procedure 1: Adding refrigerant by using the automatic refrigerant charging function(recommended)To indoor unit To indoor unitR-410A tankMeasuring instrumentGas line stop valveLiquid line stop valveGas line stop valveLiquid line stop valveService port foradding refrigerantValve AR-410A tankMeasuring instrumentPipe fixing plateService port for adding refrigerantValve AV1 Y1MODETEST/HWLINDMASTERSLAVEL.N.O.P.DEMANDH1P H2P H3P H4P H5P H6P H7Ph h i h h h h
