Samsung AM080xXV Series Service Manual page 121

Troubleshooting
■ 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.
■ Cooling Pump Down
► Recover the refrigerant of Indoor Unit and Piping to outdoor side.
► Liquid pipe service valve and the gas pipe service valve operation, the operator manually need to close.
► If the installation of the long pipe : Any refrigerant into the outdoor unit can not be recovered, therefore should use a separate container.
► 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
Etc.
4-4
Whole Operation (The set temperature=40°C)
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,
Address No.1 Outdoor Unit - 60Hz (Other Outdoor Unit COMP OFF)
Whole Operation (The set temperature=3°C)
Operation side : 2000 Step , Stop side : 2000 step
Does not conduct the operation of the special operation, and protection control.
Pressure and temperature is outside normal limits : Operation is shut down after gas pipe manually closed.
K1 Tact Switch 3 times~6 times
60Hz
ON (Heating Mode)
Maximum air flow
Operation side : 700 Step (Stop side : 0 step)
10 minutes
remainder set makes Pump Out add.
K2 Tact Switch 3 times
OFF (Cooling Mode)
Maximum air flow
30 minutes
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