Panasonic CS-RZ35WKRW Service Manual page 60

12.2.5.3 Connecting the Piping to Outdoor Multi
Decide piping length and then cut by using pipe cutter.
Remove burrs from cut edge. Make flare after inserting the
flare nut (locate at valve) onto the copper pipe. Align center
of piping to valve and then tighten with torque wrench to the
specified torque as stated in the table.
* For Gas side piping please refer table and diagram below
Outdoor Multi Combination Model
CS-MRZ16***, CU-2Z52***,
CS-MRZ20***, CU-3Z54***,
CS-RZ25***, CU-4Z71***,
CS-RZ35*** CU-4Z80***,
CU-5Z100***
CS-RZ42***, CU-2Z52***,
CS-RZ50*** CU-3Z54***,
CU-4Z71***,
CU-4Z80***,
CU-5Z100***
CS-RZ60*** CU-4Z71***,
CU-4Z80***,
CU-5Z100**
CS-RZ71*** CU-4Z80***,
CU-5Z100***
12.2.6 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.
Pipe
Reamer
Point down
1. To cut 2. To remove burrs
12.2.7 How to Take Out Front Grille
Please follow the steps below to take out front grille if
necessary such as when servicing.
1 Open front panel.
2 Remove the 3 mounting screws on the front
grille as shown in the illustration below.
3 Slide the 3 lock knobs on the upside of front
grille to unlock position.
4 Pull the front grille towards you to remove the
front grille.
When reinstalling the front grille, carry out
above steps 2 - 3 in the reverse order.
12.2.8 Check the Drainage

Open front panel and remove air filters. (Drainage
checking can be carried out without removing the
front grille.)

Pour a glass of water into the drain tray-styrofoam.

Ensure that water flows out from drain hose of the
indoor unit.
Pipe size (refer to
diagram)
(CZ-MA1P)
(CZ-MA2P)
(CZ-MA2P) &
(CZ-MA3P)
Handle
Bar
Bar
Yoke
Core
Red arrow mark
Clamp handle
3. To fl are
Hall Union
Auxiliary pipe
(male side)
Hall Union
Auxiliary pipe
(male side)
Hall Union
Auxiliary pipe
(male side)
Pipe size reducer (CZ-MA1P)
Hall Union
Auxiliary pipe
(male side)
(Indoor)
Connection pipe
(female side)
Pipe size reducer
Hall Union (CZ-MA3P)
Auxiliary pipe
(male side)
(Indoor)
Packing Connection pipe
(female side)
Improper fl aring
0 – 0.5 mm
Copper pipe
Inclined Surface
damaged
Lock knob
60
Flare Nut
Flare Nut
Connection pipe
(female side)
Packing
Flare Nut
Connection pipe
(female side)
Flare Nut
Packing Hall Union
Auxiliary pipe
(male side)
Pipe size expander
(CZ-MA2P)
Flare Nut Packing Hall Union
Auxiliary pipe
(male side)
Pipe size expander
(CZ-MA2P)
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.
Cracked Uneven
thickness
Front panel
1
2
Screw
LOCK
UNLOCK
3
Drain tray-styrofoam
Liquid side
Connection pipe
(female side)
Gas side
(Outdoor)
(Outdoor)
4
Front grille