Using Stop Valve - Samsung AC024JXADCH Installation Manual

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.
• Make a hole (0.4 inch 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.
CAUTION

Using stop valve

To Open the Stop Valve
1. Open the cap and turn the stop valve counterclockwise by using a
hexagonal wrench.
2. Turn it until the axis is stopped.
• Do not apply excessive force to the stop valve and always use
special instruments. Otherwise, the stopping box can be damaged
NOTE
and the back sheet can leaks.
• If the watertight sheet leaks, turn the axis back by half, tighten the
stopping box, then check the leakage again. If there is no leakage
any more, tighten the axis entirely.
3. Tighten the cap securely.
To Close the Stop Valve
1. Remove the cap.
2. Turn the stop valve clockwise by using a hexagonal wrench.
3. Tighten the axis until the valve reached the sealing point.
4. Tighten the cap securely.
• When you use the service port, always use a charging hose, too.
• Check the leakage of refrigerant gas after tightening the cap.
CAUTION
• Must use a spanner and wrench when you open/tighten the stop valve.
30
Tightening torque for body cap
(Refer to the table)
Charging
Core
R-22: Thread of the screw - 7/16-20UNF
R-410A: Thread of the screw - 1/2-20UNF
Tightening torque for body cap
(Refer to the table)
Spindle