Refrigerant Piping Connection lnstructions
1 If the indoor unit is installed higher than the outdoor unit:
CAUTION
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.
DO NOT
deform pipe while cutting.Be extra carefull not to damage,dent,or deform the pipe
while cutting.This will drastically reduce the heating efficiency of the unit
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.
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.
Remove burrs
Burrs can affect the air-tight seal of refrigerant piping connection. They must be completely
removed.
1.Hold the pipe at a downward angle to prevent burrs from falling into the pipe.
2.Using a reamer or deburring tool, remove all burrs from the cut section of the pipe.
Pipe
Reamer
Point down
Flare pipe ends
Proper flaring is essential to achieve an airtight seal.
1.After removing burrs from cut pipe, seal the ends with PVC tape to prevent foreign
materials from entering the pipe.
2.Sheath the pipe with insulating material.
3.Place flare nuts on both ends of pipe. Make sure they are facing in the right direction,
because you can't put them on or change their direction after flaring.
90
slant roughess Burr
pipe
Flare nut
!!
