Panasonic Cs Xc9ckh Cs Xc12ckh Series Repair Manual

Applicable piping kit
CZ-3F5, 7AEN (XC9CK)
CZ-4F5, 7, 10AN (XC12CK)
SELECT THE BEST LOCATION
INDOOR UNIT
 • There should not be any heat source or steam near the
unit.
 • There should not be any obstacles blocking the air
circulation.
 • A place where air circulation in the room is good.
 • A place where drainage can be easily done.
 • A place where noise prevention is taken into
consideration.
 • Do not install the unit near the doorway.
 • Ensure the spaces indicated by arrows from the wall,
ceiling,...

10.2.1. SELECT THE BEST LOCATION
(Refer to “Select the best location”
section)
10.2.2. HOW TO FIX INSTALLATION
PLATE
The mounting wall is strong and solid enough to prevent it from
the vibration.
The centre of installation plate should be at more than 450 mm
at right and left of the wall.
The distance from installation plate edge to ceiling should more
than 67 mm.
From installation plate left edge to unit’s left side is 47 mm.
From installation plate right edge to unit’s right is 73 mm.
:
:
:For left...

 3. For the embedded piping
(This can be used for left rear piping & left bottom piping also.)
43 

10.2.5. CONNECT THE CABLE TO THE
INDOOR UNIT
 1. The inside and outside connecting cable can be connected
without removing the front grille.
 2. Connecting cable between indoor unit and outdoor unit
shall be approved polychloroprene sheathed 5 (XC9CK,
XC12CK) × 1.5 mm
2flexible cord, typedesignation 245 IEC
57 or heavier cord.
 • Ensure the color of wires of outdoor unit and the
terminal Nos. are the same to the indoor’s respectively.
 • Earth lead wire shall be longer than the other lead wires
as shown...

HOW TO TAKE OUT FRONT GRILLE
Please follow the steps below to take out front grille if
necessary such as when servicing.
 1. Set the vertical airflow direction louver to the horizontal
position.
 2. Slide down the two caps on the front grille as shown in the
illustration below, and then remove the two mounting
screws.
 3. Pull the lower section of the front grille towards you to
remove the front grille.
When reinstalling the front grille, first set the vertical
airflow direction louver to the horizontal...

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.
(1)*
*Connect the manifold gauge to the service port of 3-way
valve.
Measure the pressure.(2)*
*Keep it for 5-10 minutes.
Ensure that the pressure indicated on the gauge is the
same...

CHECK THE DRAINAGE
 • Open front panel and remove air filters.
(Drainage checking can be carriedout without removing the
front grille.)
 • Pour a glass of waterinto the draintraystyrofo am.
 • Ensure that water flows out from drain hose of the indoor
unit.
EVALUATIONOF THE PERFORMANCE
 • Operate the unit at cooling operation mode for fifteen
minutes or more.
 • Measure the temperature of the intake and discharge air.
 • Ensure the difference between the intake temperature and
the discharge is more than...

10.3.7. OXYGEN TUBE CONNECTION
Precautions duringoxygen tube connection
 1. Tube allowable length and height difference is the same as
pipes.
 2. Tube should be pulled without folding it along the path of
refrigerant pipe, providing sufficient allowance and cut to
length.
 • If there is no allowance, tube length will contract when
temperature changes and it may cause trouble.
 • On the other hand, tube length used without cutting and
in the form of loop too should be avoided.
 3. When the tube is passed...

11 2-way, 3-way Valve
2-way Valve (Liquid Side)3-way Valve (Gas Side)
WorksShaft PositionShaft PositionService Port
ShippingCloseCloseClose
(With valve cap)(With valve cap)(With cap)
EvacuationCloseCloseOpen
(Installation and(Counter-Clockwise)(Clockwise)(Push-pin)
Re-installation)
OperationOpenOpenClose
(With valve cap)(With valve cap)(With cap)
Pumping downCloseOpenOpen
(Transferring)(Clockwise)(Counter-Clockwise)(Connected manifold
gauge)
EvacuationOpenOpenOpen
(Servicing)With vacuum pump
Gas...

Required tools: hexagonal wrench, adjustable wrench, torque
wrenches, wrench to hold the joints and gas leak detector.
The additional gas for air purging has been charged in the
outdoor unit.
However, if the flare connections have not been done correctly
and there gas leaks, a gas cylinder and the charge set will be
needed.
 1. Recheck the piping connections.
 2. Open thevalve stemof the2-wayvalvecounter-
clockwise approximately 90°, wait 10 seconds, and
then set it to closed position.
 • Be sure to use...