Panasonic CS-A18HKD / CS-A24HKD / CU-A18HKD / CU-A24HKD Service Manual ▷ View online
21
11.3. Indoor Unit
11.3.1.
HOW TO FIX INSTALLATION PLATE
The mounting wall is strong and solid enough to prevent it from
the vibration.
the vibration.
The centre of installation plate should be at more than 550 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.
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.
1. Mount the installation plate on the wall with 5 screws or
more.
(If mounting the unit on the concrete wall, consider using
anchor bolts.)
(If mounting the unit on the concrete wall, consider using
anchor bolts.)
• Always mount the installation plate horizontally by
aligning the marking-off line with the thread and using a
level gauge.
level gauge.
2. Drill the piping plate hole with ø70 mm hole-core drill.
• Line according to the arrows marked on the lower left
and right side of the installation plate. The meeting point
of the extended line is the centre of the hole. Another
method is by putting measuring tape at position as
shown in the diagram above. The hole centre is obtained
by measuring the distance namely 150 mm and 125 mm
for left and right hole respectively.
of the extended line is the centre of the hole. Another
method is by putting measuring tape at position as
shown in the diagram above. The hole centre is obtained
by measuring the distance namely 150 mm and 125 mm
for left and right hole respectively.
• Drill the piping hole at either the right or the left and the
hole should be slightly slanted to the outdoor side.
11.3.2.
TO DRILL A HOLE IN THE WALL
AND INSTALL A SLEEVE OF
PIPING
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 from the
2. Fix the bushing to the sleeve.
3. Cut the sleeve until it extrudes about 15 mm from the
wall.
4. Finish by sealing the sleeve with putty or caulking
compound at the final stage.
11.3.3.
INDOOR UNIT INSTALLATION
1. For the right rear piping
2. For the right and right bottom piping
: For left side piping, piping connection for liquid should be about
126 mm from this line.
: For left side piping, piping connection for gas should be about
174 mm from this line.
: For left side piping, piping connection cable should be about
984 mm from this line.
Caution
When the wall is hollow, please be sure to use the
sleeve for tube ass’y to prevent dangers caused by
mice biting the connecting cable.
sleeve for tube ass’y to prevent dangers caused by
mice biting the connecting cable.
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3. For the embedded piping
(This can be used for left rear piping and left bottom piping
also.)
also.)
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11.3.4.
CONNECT THE CABLE TO THE
INDOOR UNIT
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
× 2.5 mm
2
(C18HKD, C24HKD) or 5 x 2.5 mm
2
(A18HKD, A24HKD)
flexible cord, type designation 245 IEC 57 or heavier
cord.
cord.
• Ensure the colour 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 in the figure for the electrical safety in case of
the slipping out of the cord from the anchorage.
the slipping out of the cord from the anchorage.
• Secure the cable onto the control board with the holder
(clamper).
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11.4. Outdoor Unit
11.4.1.
INSTALL THE OUTDOOR UNIT
• After selecting the best location, start installation according
to Indoor/Outdoor Unit Installation Diagram.
1. Fix the unit on concrete or rigid frame firmly and
horizontally by bolt nut (ø10 mm).
2. When installing at roof, please consider strong wind and
earthquake. Please fasten the installation stand firmly
with bolt or nails.
with bolt or nails.
11.4.2.
CONNECTING THE PIPING
Connecting The Piping To Indoor Unit
Please make flare after inserting flare nut (locate at joint portion of tube assembly) onto the copper pipe.
(In case of using long piping)
Please make flare after inserting flare nut (locate at joint portion of tube assembly) onto the copper pipe.
(In case of using long piping)
Connect the piping
• Align the center of piping and sufficiently tighten the flare nut with fingers.
• Further tighten the flare nut with torque wrench in specified torque as stated in the table.
• Further tighten the flare nut with torque wrench in specified torque as stated in the table.
Connecting The Piping To Outdoor Unit
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 valves and then tighten with torque wrench to the specified torque as stated in the table.
(locate at valve) onto the copper pipe.
Align center of piping to valves and then tighten with torque wrench to the specified torque as stated in the table.
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.
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.
Model
A
B
C
D
C18HKD
570 mm
105 mm
18.5 mm
320 mm
C24HKD, A18HKD,
A24HKD
612.5 mm 131 mm
19 mm
383 mm
Model
Piping size (Torque)
Gas
Liquid
C18HKD, A18HKD
1/2” [55 N
●
m]
1/4” [18 N
●
m)
C24HKD, A24HKD
5/8” [65 N
●
m]
1/4” [18 N
●
m)
Do not over tighten, over tightening cause gas leakage.
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