Panasonic CS-Z25UB4EAW Service Manual page 49

12.2.6.1 Cutting and Flaring the Piping
1 Please cut using pipe cutter and then remove the burrs.
2 Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused.
Turn the piping end down to avoid the metal powder entering the pipe.
3 Please make flare after inserting the flare nut onto the copper pipes.
Point down
1. To cut
2. To remove burrs
12.2.7 Disposal of Outdoor Unit Drain Water

If a drain elbow is used, the unit should be placed on a stand which is taller than 3 cm.

If the unit is used in an area where temperature falls below 0°C for 2 or 3 days in succession, it is recommended
not to use a drain elbow, for the drain water freezes and the fan will not rotate.
Pipe
Handle
Reamer
Bar
Yoke
Red arrow mark
Clamp handle
3. To flare
Drain elbow
Install the hose at an angle so that the water smoothly flows out
0 – 0.5 mm
Bar
Core
When properly flared, the internal surface of the flare will evenly shine
Copper
and be of even thickness. Since the flare part comes into contact with
pipe
the connections, carefully check the flare finish.
1
Hose
49
 
Improper flaring
Inclined Surface Cracked Uneven
damaged thickness