Samsung AM045NN4DEH Series Service Manual page 27

■ 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.
Samsung Electronics
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
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
closed.
Troubleshooting
27