10
Climate 5000 MS – 6720887246 (2018/04)
Refrigerant Piping Connection
Fig. 13.
7
Refrigerant Piping Connection
Safety Precautions
WARNING
•
All installation piping must be completed by Qualified Personnel
and must comply with the local and national regulations.
•
When the air conditioner is installed in a small room, measures must
be taken to prevent the refrigerant concentration in the room from
exceeding the safety limit in the event of refrigerant leakage. If the
refrigerant leaks and its concentration exceeds its proper limit,
hazards due to lack of oxygen may result.
•
When installing the refrigeration system, ensure that air, dust,
moisture or foreign substances do not enter the refrigerant circuit.
Contamination in the system may cause poor operating capacity,
high pressure in the refrigeration cycle, explosion or injury.
•
Ventilate the area immediately if there is refrigerant leakage during
the installation. Leaked refrigerant gas is both toxic and flammable.
Ensure there is no refrigerant leakage after completing the installa-
tion work.
Refrigerant Piping Connection Instructions
CAUTION
•
The branching pipe must be installed horizontally. An angle of more
than 10° may cause malfunction.
•
DO NOT
install the connecting pipe until both indoor and outdoor
units have been installed.
•
Insulate both the gas and liquid piping to prevent water leakage.
Step 1: Cut pipes
When preparing refrigerant pipes, take extra care to cut and flare them
properly. This will ensure efficient operation and minimize the need for
future maintenance.
For R32 refrigerant models, the pipe connection
points must be placed outside of the room.
1. Measure the distance between the indoor and outdoor units.
2. Using a pipe cutter, cut the pipe a little longer than the measured
distance.
CAUTION
DO NOT
deform the pipe while cutting. Be extra careful not to damage,
dent, or deform the pipe while cutting. This will drastically reduce the
heating efficiency of the unit.
1. Ensure that the pipe is cut at a perfect 90° angle. Refer to Fig. 14 for
examples of bad cuts
90°
Oblique
Rough
Warped
Fig. 14.
