Connecting The Piping - Panasonic WH-UDZ03KE5 Installation Manual

CONNECTING THE PIPING

4
CONNECTING THE PIPING TO OUTDOOR UNIT
Decide piping length and then cut by using pipe cutter. Remove burrs
from cut edge. Make fl are after inserting the fl are nut (locate at valve)
onto the copper pipe. Align center of piping to valves and then tighten
with torque wrench to the specifi ed torque as stated in the table.
Model
ø12.7mm (1/2")
WH-UDZ03KE5*
WH-UDZ05KE5*,
ø15.88mm (5/8")
WH-UDZ07KE5* and
WH-UDZ09KE5*
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 fl are after inserting the fl are nut onto the copper pipes.
Point down
1. To cut 2. To remove burrs
Piping size (Torque)
Gas Liquid
ø6.35mm (1/4")
[55 N•m] [18 N•m]
ø6.35mm (1/4")
[65 N•m] [18 N•m]
CUTTING AND FLARING THE PIPING
Pipe
Reamer
Bar
Clamp
handle
3. To fl are
Spanner or
Wrench
Be sure to use two spanners to tighten.
(If the nuts are overtightened, it may cause the fl ares to break or leak.)
Handle
0 – 0.5 mm
Bar
Yoke
Core
Copper pipe
Red arrow mark
Torque
wrench
 Improper fl aring 
Inclined Surface Cracked Uneven
damaged
When properly fl ared, the internal surface
of the fl are will evenly shine and be of
even thickness. Since the fl are part comes
into contact with the connections, carefully
check the fl are fi nish.
thickness
9