Panasonic CS-BE20TKD / CU-BE20TKD Service Manual ▷ View online
21
11.2 Indoor Unit
11.2.1 How to Fix Installation Plate
The mounting wall shall be strong and solid enough to prevent it from vibration.
Model
Dimension
1
2
3
4
5
6
BE20***,
KE25***, BE25***, DE25***,
KE35***, BE35***, DE35***
KE25***, BE25***, DE25***,
KE35***, BE35***, DE35***
480 mm
90 mm
425 mm
425 mm
43 mm
95 mm
Model
Dimension
1
2
3
4
5
6
KE50***, BE50***, DE50***
490 mm
85 mm
439 mm
432 mm
43 mm
95 mm
The center of installation plate should be at more than 1 at right and left of the wall.
The distance from installation plate edge to ceiling should more than 2.
From installation plate center to unit’s left side is 3.
From installation plate center to unit’s right side is 4.
B
: For left side piping, piping connection for liquid should be about 5 from this line.
: For left side piping, piping connection for gas should be about 6 from this line.
1 Mount the installation plate on the wall with 5 screws or more (at least 5 screws).
(If mounting the unit on the concrete wall, consider using anchor bolts.)
o
Always mount the installation plate horizontally by aligning the marking-off line with the thread and using
a level gauge.
a level gauge.
2 Drill the piping plate hole with ø70 mm hole-core drill.
o
Line according to the left and right side of the installation plate.
The meeting point of the extended line is the center of the hole.
Another method is by putting measuring tape at position as shown in the diagram above.
The hole center is obtained by measuring the distance namely 128 mm for left and right hole
respectively.
The meeting point of the extended line is the center of the hole.
Another method is by putting measuring tape at position as shown in the diagram above.
The hole center is obtained by measuring the distance namely 128 mm for left and right hole
respectively.
o
Drill the piping hole at either the right or the left and the hole should be slightly slanting to the outdoor
side.
side.
3
4
B
A
C
Ceiling
Wall
Wall
Installation
plate
plate
1
2 screw
More than
1
More than
1
Measuring Tape
Indoor unit
228 mm
128 mm
228 mm
128 mm
More than
2
For best strength of
INDOOR unit installation,
it is highly recommended
to locate “ ” at 5 position
as shown.
INDOOR unit installation,
it is highly recommended
to locate “ ” at 5 position
as shown.
PIPE
HOLE
CENTER
HOLE
CENTER
PIPE
HOLE
CENTER
HOLE
CENTER
128mm TO
PIPE HOLE
CENTER
PIPE HOLE
CENTER
128mm TO
PIPE HOLE
CENTER
PIPE HOLE
CENTER
3
4
B
A
C
Ceiling
Wall
Wall
Installation
plate
plate
1
2 screw
More than
1
More than
1
Measuring Tape
Indoor unit
241.5 mm
128 mm
241.5 mm
128 mm
More than
2
For best strength of
INDOOR unit installation,
it is highly recommended
to locate “ ” at 5 position
as shown.
INDOOR unit installation,
it is highly recommended
to locate “ ” at 5 position
as shown.
PIPE
HOLE
CENTER
HOLE
CENTER
PIPE
HOLE
CENTER
HOLE
CENTER
128mm TO
PIPE HOLE
CENTER
PIPE HOLE
CENTER
128mm TO
PIPE HOLE
CENTER
PIPE HOLE
CENTER
22
11.2.2 To Drill a Hole in the Wall and
Install a Sleeve of Piping
1 Insert the piping sleeve to the hole.
2 Fix the bushing to the sleeve.
3 Cut the sleeve until it extrudes about 15 mm
2 Fix the bushing to the sleeve.
3 Cut the sleeve until it extrudes about 15 mm
from the wall.
CAUTION
When the wall is hollow, please be sure to use the
sleeve for tube assembly to prevent dangers
caused by mice biting the connection cable.
caused by mice biting the connection cable.
4 Finish by sealing the sleeve with putty or
caulking compound at the final stage.
Putty or caulking compound
Sleeve for
tube assembly
tube assembly
Approx. 5 - 7 mm
Bushing for tube assembly
Wall
ø70 mm
through hole
through hole
Indoor
Outdoor
15 mm
23
11.2.3 Indoor Unit Installation
11.2.3.1 For the Right Rear Piping
11.2.3.2 For the Right and Right
Bottom Piping
11.2.3.3 For the Embedded Piping
(This can be used for left rear piping and bottom
piping also.)
•
Do not turn over the unit without it’s shock absorber during pull out the piping.
It may cause intake grille damage.
It may cause intake grille damage.
•
Use shock absorber during pull out the piping to protect the intake grille from damage.
Intake grille
Piping
pull ou
t the
pip
in
g
Piping
Shock absorber
pull o
ut t
he
p
ip
in
g
Install the Indoor Unit
Pull out the Indoor piping
Step-2
Secure the Indoor Unit
Insert the power supply cord and connection cable
Step-1
Step-3
Step-4
• Insert the cables from bottom of the unit through the control board hole until
terminal board area.
Install the Indoor Unit
Pull out the Indoor piping
Step-2
Insert the power supply cord and connection cable
Secure the Indoor Unit
Step-1
Step-3
Step-4
• Insert the cables from bottom of the unit through the control board hole until
terminal board area.
terminal board area.
• Use a spring bender or equivalent to bend the piping so that the piping is not
crushed.
crushed.
• When determining the dimensions of the piping, slide the unit all the way to the
left on the installation plate.
left on the installation plate.
• Refer to the section “Cutting and flaring the piping”.
Bend the embedded piping
Cut and flare the embedded piping
Replace the drain hose
Pull the connection cable into Indoor Unit
• The power supply cord and indoor unit and outdoor unit connection cable can
be connected without removing the front grille.
be connected without removing the front grille.
• Please refer to “Connecting the piping” column in outdoor unit section.
(Below steps are done after connecting the outdoor piping and gas-leakage
confirmation.)
(Below steps are done after connecting the outdoor piping and gas-leakage
confirmation.)
Connect the piping
• Please refer to “Insulation of piping connection” column as mentioned in
indoor/outdoor unit installation.
indoor/outdoor unit installation.
Install the Indoor Unit
Secure the Indoor Unit
Insulate and finish the piping
Step-1
Step-2
Step-3
Step-4
Step-5
Step-6
Step-7
Step-8
In case of the cover is cut, keep the cover at the rear
of chassis as shown in the illustration for future
reinstallation.
of chassis as shown in the illustration for future
reinstallation.
(Left, right and 2 bottom covers for piping.)
How to keep the cover
Hook the indoor unit onto the upper
portion of installation plate. (Engage the
indoor unit with the upper edge of the
installation plate). Ensure the hooks are
properly seated on the installation plate
by moving it in left and right.
portion of installation plate. (Engage the
indoor unit with the upper edge of the
installation plate). Ensure the hooks are
properly seated on the installation plate
by moving it in left and right.
Press the lower left and right side of the unit against
the installation plate until hooks engages with their
slot (sound click).
the installation plate until hooks engages with their
slot (sound click).
Right Rear piping
Right and Right Bottom piping
Install the indoor unit
Secure the Indoor Unit
Insert the connection cable
Cover for the
bottom piping
bottom piping
Cover for the
bottom piping
bottom piping
Tape it with piping in a
position as mentioned
in Fig. below.
Cover for
the right
piping
the right
piping
Piping
Drain
hose
hose
Cover for
the left
piping
the left
piping
Cover for
the bottom
piping
the bottom
piping
Tape it with piping in a
position as mentioned
in Fig. below.
Cover for
the right
piping
the right
piping
Piping
Drain hose
Cover for
the left
piping
the left
piping
Drain hose
Sleeve for piping hole
Indoor unit
Hooks at installation
plate
plate
Piping
Cover for piping
Guide
surface
surface
Connection cable
About
70 – 80 mm
Connection cable
Gas side piping
Liquid side piping
Drain hose
Installation
plate
plate
Unit’s hook
To take out the unit, push the marking at the bottom
unit, and pull it slightly towards you to disengage the hooks
from the unit.
unit, and pull it slightly towards you to disengage the hooks
from the unit.
g
n
i
k
r
a
m
24
11.2.4 Connect the Cable to the Indoor Unit
The power supply cord, indoor and outdoor unit connection cable can be connected without removing the front grille.
1 Install the indoor unit on the installing holder that mounted on the wall.
2 Open the front panel and grille door by loosening the screw.
3 Cable connection to the power supply through Isolating Devices (Disconnecting means).
2 Open the front panel and grille door by loosening the screw.
3 Cable connection to the power supply through Isolating Devices (Disconnecting means).
o
Connect approved type polychloroprene sheathed power supply cord 3 x 1.5 mm
2
(3/4 ~ 1.5HP) or 3 x
2.5 mm
2
(2.0HP) type designation 60245 IEC 57 or heavier cord to the terminal board, and connect the
others end of the cord to Isolating Devices (Disconnecting means).
o
Do not use joint power supply cord. Replace the wire if the existing wire (from concealed wiring, or
otherwise) is too short.
otherwise) is too short.
o
In unavoidable case, joining of power supply cord between isolating devices and terminal board of air
conditioner shall be done by using approved socket and plug with earth pin rated 15/16A (3/4 ~ 1.5HP)
or 16A (2.0HP). Wiring work to both socket and plug must follow to national wiring standard.
conditioner shall be done by using approved socket and plug with earth pin rated 15/16A (3/4 ~ 1.5HP)
or 16A (2.0HP). Wiring work to both socket and plug must follow to national wiring standard.
4 Bind all the power supply cord lead wire with tape and route the power supply cord via the left escapement.
5 Connection cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed
5 Connection cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed
4 x 1.5 mm
2
(3/4 ~ 1.5HP) or 4 x 2.5 mm
2
(2.0HP) flexible cord, type designation 60245 IEC 57 or heavier
cord. Do not use joint connection cable. Replace the wire if the existing wire (from concealed wiring, or
otherwise) is too short. Allowable connection cable length of each indoor unit shall be 30 mm or less.
otherwise) is too short. Allowable connection cable length of each indoor unit shall be 30 mm or less.
6 Bind all the indoor and outdoor connection cable with tape and route the connection cable via the right
escapement.
•
How to pull the piping and drain hose out, in case of the
embedded piping.
embedded piping.
•
In case of left piping how to insert the
connection cable and drain hose.
connection cable and drain hose.
Rear view for left piping installation
Drain cap
Drain hose
Adjust the piping slightly
downwards.
downwards.
Drain hose
Connection cable
PVC tube
for drain
hose
for drain
hose
Indoor unit
100 mm
Piping
Cable
Apply putty or
caulking material
to seal the wall
opening.
caulking material
to seal the wall
opening.
Connection cable
Piping
More than
470 mm
More than
950 mm
PVC tube (VP-65) for piping
and connection cable
and connection cable
PVC tube for drain hose (VP-30)
PVC tube for drain
hose (VP-20)
hose (VP-20)
More than 700 mm
Drain hose
from main unit
from main unit
Exchange the drain hose and cap
Cable
45°
Drain
hose
hose
Piping
Sleeve for piping hole
Drain hose
Piping
Connection cable
More than 950 mm
(For the right piping, follow the same procedure)
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