Samsung AM072BXV Series Service Manual page 73

Troubleshooting
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.
Method of Entry
Compressor
Indoor Unit
Outdoor fan and valves
Operation time
Etc.
■ Refrigerant filling operation
► Operation to filling the refrigerant compressor was fixed at a certain frequency.
Method of Entry
Compressor
Indoor Unit
Outdoor fan and valves
Operation time
Etc.
■ 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
Compressor
Indoor Unit
4Way Valve
Outdoor Fan
Main EEV
Maximum Operation Time
Protection Control
Etc.
Samsung Electronics
Cooling
K2 Tact Switch twice
Normal operation, but the maximum frequency limit (differ by model)
Whole operation (The set temperature=3°C)
• Exceed the maximum operating time at stops and waits.
• Protection and control, self-diagnosis is performed.
Cooling
K2 Tact Switch one time
Whole operation (The set temperature=3°C)
During the filling operation does not enter the special operation, such as oil recovery, defrost.
Whole Operation (The set temperature=40°C)
Operation side : 700 Step (Stop side : 0 step)
Conduct the discharge temperature, high pressure control. (Low pressure protection control is not carried out)
※ Low pressure is outside normal limits : Operation is shut down after gas pipe manually closed.
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,
Whole operation (The set temperature=40°C)
Normally control conduct
Min : 60 minutes, Max : 10 hours
Starting frequency (Mild Start frequency) operation
Whole operation (The set temperature=40°C)
Normally control conduct
60 minutes
K1 Tact Switch 3 times~6 times
60Hz
ON (Heating Mode)
Maximum air flow
10 minutes
remainder set makes Pump Out add.
Heating
K1 Tact Switch twice
Heating
K1 Tact Switch one time
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