Samsung AQ09TSBNEUR Manuale Utente

Installing and connecting the drain hose of the outdoor unit

Frame

Ground

Estimated

snow fall

Snow-proof hood

Bottom surface of outdoor unit

Drain hose

Drain hole

Drain plug

While heating, ice may accumulate. During the process of defrosting, check if condensation draining is adequate. For adequate

draining, do the following:

The outdoor unit is loaded with sufficient R410A refrigerant. Do not vent R410A into atmosphere: it is a fluorinated

greenhouse gas, covered by Kyoto Protocol, with a Global Warming Potential (GWP) = 1975.
You should purge the air in the indoor unit and in the pipe. If air remains in the refrigerant pipes, it affects the compressor.

It may cause reduction of cooling capacity and malfunction. Refrigerant for air purging is not charged in the outdoor unit.

Use Vacuum Pump as seen in the picture.

1. Insert the drain plug into the drain hole on the underside of the outdoor unit.

1. Connect each assembly pipe to the appropriate valve on the outdoor unit and

tighten the flare nut.

2. Tighten the flare nut first with your hands, and then with a torque wrench,

applying the following torque:

2. Connect a drain hose to the drain plug.

3. Ensure that condensation draining is adequate.

Drain hole

Drain plug

• To avoid drain plug from contacting the ground, secure gap between the

ground and the bottom surface of the outdoor unit.

• In areas with heavy snow fall, piled snow could block the air intake.

To avoid this incident, install a frame that is higher than estimated snow

fall. In addition, install a snow-proof hood to avoid snow from piling on the

outdoor unit.

• When installing, make sure there is no leakage. When recovering the refrigerant, ground the compressor first

before removing the connection pipe. If the refrigerant pipe is not properly connected and the compressor works

with the service valve open, the pipe inhales the air and it makes the pressure inside of the refrigerant cycle

abnormally high. It may cause explosion and injury.

Purging the connected pipes

Outdoor unit

Indoor unit

Gas pipe side

Liquid pipe side

Outer Diameter Torque (kgf•cm)

ø6.35 mm

140~170

ø9.52 mm

250~280

ø12.70 mm

380~420

ø15.88 mm

440~480

ø19.05 mm

990~1210

ø22.23 mm

990~1210

• Excessive torque can be cause of gas leakage.

• Make the electrical connection and leave the system into “stand by

mode”. Do not turn on the system!

This is necessary for better vacuum operation (full OPEN position of

Electronic Expansion Valve - EEV -).