Troubleshooting
Samsung Electronics 67
4-2 Service Operation (cont.)
4-2-1 Special Operation (cont.)
Auto Trial Operation
► After initial installation, stable operation for a certain period of time limited to operation conditions.
Cooling Heating
Method of Entry K2 Tact Switch twice K1 Tact Switch twice
Compressor Normal operation, but the maximum frequency limit (differ by model)
Indoor Unit Whole operation (The set temperature=3°C) Whole operation (The set temperature=40°C)
Outdoor fan and valves Normally control conduct
Operation time Min : 60 minutes, Max : 10 hours
Etc. • Exceed the maximum operating time at stops and waits.
• Protection and control, self-diagnosis is performed.
Refrigerant lling operation
► Operation to filling the refrigerant compressor was fixed at a certain frequency.
Cooling Heating
Method of Entry K2 Tact Switch one time K1 Tact Switch one time
Compressor Starting frequency (Mild Start frequency) operation
Indoor Unit Whole operation (The set temperature=3°C) Whole operation (The set temperature=40°C)
Outdoor fan and valves Normally control conduct
Operation time 60 minutes
Etc. During the filling operation does not enter the special operation, such as oil recovery, defrost.
Heating Pump Out
► Operation for the repair of the Individual outdoor unit, the outdoor unit refrigerant emissions to the indoor part.
► Liquid pipe service valve and the gas pipe service valve operation, the operator manually need to close.
► Observe low pressure using View Mode of K4 button if compressor operate.
If low pressure goes down below about 0.2 MPa.g : Immediately lock the gas side service valve, Pump Out operation is shut down.
(Pump out operation shut down : K1 button once more press or K3 button one time press)
►
If operation of low pressure goes down below 0.1 MPa.g : Will be stopped automatically for the protection of the compressor.
How to Initiate K1 Tact Switch 3 times~6 times
Compressor 60Hz
Indoor Unit Whole Operation (The set temperature=40°C)
4Way Valve ON (Heating Mode)
Outdoor Fan Maximum air flow
Main EEV Operation side : 700 Step (Stop side : 0 step)
Maximum Operation Time 10 minutes
Protection Control Conduct the discharge temperature, high pressure control. (Low pressure protection control is not carried out)
Etc. Entry after safety start. (Only the corresponding Outdoor Unit operation.)
To pump out more than 2 : Except communication between Outdoor Unit of relevant set after working for one,
remainder set makes Pump Out add.
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