Panasonic Cs W7bkp Cs W9bkp Cs W12bkp Repair Manual

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.)
42
CS-W7BKP CU-W7BKP5 / CS-W9BKP CU-W9BKP5 / CS-W12BKP CU-W12BKP5 

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 3 (C7BK,
C9BK, C12BK, V7BK, V9BK, V12BK) or 5 (A7BK, A9BK,
A12BK, W7BK, W9BK, W12BK) × 1.5 mm
2flexible cord,
type designation 245 IEC57 or heavier cord.
 • Ensure the color of wires of outdoor unit and the
terminal Nos. are the same to the indoor’s respectively.
 •...

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.
10.3.4. (a) EVACUATION OF THE EQUIPMENT (FOR EUROPE & OCEANIA DESTINATION)
WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the...

(1)*
*Connect the manifo ld gauge to the service port of 3-way
valve.
Measure the pressure.
10.3.6. CONNECT THE CABLE TO THE
OUTDOOR UNIT
 1. Remove the control board cover from the unit by loosening
the screw.
 2. Connecting cable between indoor unit and outdoor unit
shall be approved polychloroprene sheathed 3 (C7BK,
C9BK, C12BK, V7BK, V9BK, V12BK) or 5 (A7BK, A9BK,
A12BK, W7BK, W9BK, W12BK) × 1.5 mm
2flexible cord,
type designation 245 IEC57 or heavier cord.
 3. Secure the cable onto the control board...

10.3.7. PIPE INSULATION
 1. Please carry out insulation at pipe connection portion as
mentioned in Indoor/Outdoor Unit Installation Diagram.
Please wrap the insulated piping end to prevent water from
going inside the piping.
 2. If drain hose or connecting piping is in the room (where dew
may form), please increase the insulation by using POLY-E
FOAM with thickness 6 mm or above.
DISPOSAL OFOUTDOOR UNIT DRAINWATER
 • If a drain elbow is used, the unit should be placed on a
stand which is taller than 3...

NOTE:These equipment shall be connected to a suitable mains network
with a main impedance less than the following:
CS-A9BKP / CU-A9BKP5: 0.44Ω
CS-C12BKP / CU-C12BKP5: 0.47Ω
CS-A12BKP / CU-A12BKP5: 0.47Ω
CS-V12BKP / CU-V12BKP5: 0.45Ω
CS-W12BKP / CU-W12BKP5: 0.45Ω
CHECK ITEMS
Is there any gas leakage at flare nut connections?
Has the heat insulation been carried out at flare nut
connection?
Is the connecting cable being fixed to terminal board firmly?
Is the connecting cable being clamped firmly?
Is the...

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 manifo ld
gauge)
EvacuationOpenOpenOpen
(Servicing)With vacuumpump
Gas...

11.1.1. Evacuation of Installation
WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO
EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES
in the following procedure.
 1. Connect a charging hose with a push pin to the Low
side of a charging set and the service port of a 3-way
valve.
 • Be sure to connect the endof the charging hose with the
push pin to the service port.
 2. Connect the centre hose of the charging set to a
vacuum pump.
 3. Turn on the power switchof the vacuum pump and
make sure that the needle...