Samsung DVM S ECO BIG Series Service Manual page 50

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 MPaG : Immediately lock the gas side service valve, Pump Out operation is shut down.
• If operation of low pressure goes down below 0.1 MPaG : 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.
■ Pump down in cooling mode
• 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.
• I f the installation of the long pipe : Any refrigerant into the outdoor unit can not be recovered, therefore should use a separate con-
tainer.
• O bserve low pressure using View Mode of K4 button if compressor operate. If low pressure goes down below about 0.2 MPaG :
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 MPaG : 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.
4-8
Press the K1 tact switch 3 times
60Hz
Whole operation (The set temperature=40°C)
ON (Heating mode)
Maximum air flow
Operation side : 700 Step (Stop side : 0 step)
10 minutes
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, remainder set makes Pump Out add.
Press the K2 tact switch 3 times
60Hz
Whole operation (The set temperature=40°C)
OFF (Cooling mode)
Maximum air flow
2000 Step
30 minutes
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.
Samsung Electronics