Samsung AC071JXSCEH Installation Manual page 32

Refrigerant pipe work
When installing insulation in places and conditions below, use the same insulation that is used for high humidity
conditions.
<Geological condition>
- High humidity places such as shoreline, hot spring, near lake or river, and ridge (when the part of the building is
covered by earth and sand.)
<Operation purpose condition>
- Restaurant ceiling, sauna, swimming pool etc.
<Building construction condition>
- The ceiling frequently exposed to moisture and cooling is not covered.
e.g. The pipe installed at a corridor of a dormitory and studio or near an exit that opens and closes frequently.
- The place where the pipe is installed is highly humid due to the lack of ventilation system.
Installing an oil trap
Check the following list and install an oil trap.
Install an oil trap only when the outdoor unit is at a higher level than the indoor unit.
Based on cooling operation, install it on the gas side pipe only.
Install the oil trap only in between the outdoor unit and the first branch joint and it should be installed at every 10 m.
Radius of curvature (R) on the oil trap are as follows;
Pipe diameter (D)
Radius of curvature (R)
Height of the oil trap (H): 4R ≤ H ≤ 6R
❋ When the indoor unit is installed at a higher
place than the outdoor unit
Outdoor unit
If the compressor operates in the condition that the refrigerant pipe is not installed correctly and the service
valve is opened, the refrigerant pipe may intake air and the pressure inside the refrigerant cycle will increase,
CAUTION
which may result in explosion and injury.
Make a hole (10 mm in diameter) on the insulation so that rain water can be drained in case it gets inside of the
insulation. However, be careful not to damage the pipe.
32
12.70 15.88
25 and over 32 and over
Indoor unit
Oil trap
(Install it at every 10 m)
19.05 22.23
38 and over 41 and over
❋ When the outdoor unit is installed at a higher
place than indoor unit
Oil trap (Install it at
every 10 m)
Cut on insulation
25.40 28.60
51 and over 57 and over
Outdoor unit
Insulation
Indoor unit
Oil trap (Gas side pipe)
31.75
60 and over