Panasonic S-22KA1E5 / S-28KA1E5 / S-36KA1E5 / S-45KA1E5 / S-56KA1E5 / S-63KA1E5 / S-71KA1E5 / S-22YA1E5 / S-28YA1E5 / S-36YA1E5 / S-45YA1E5 / S-56YA1E5 / S-22NA1E5 / S-28NA1E5 / S-32NA1E5 / S-36NA1E5 / S-45NA1E5 / S-56NA1E5 / S-45MA1E5 / S-56MA1E5 / S-63MA1E5 / S-7 Service Manual ▷ View online
93
Cautions
Carry out Earthing work.
Do not connect the Earth return to the gas pipe, water line pipe, lightning rod and telephone lines.
Imperfection in Earth return may lead to electric shock.
Do not connect the Earth return to the gas pipe, water line pipe, lightning rod and telephone lines.
Imperfection in Earth return may lead to electric shock.
Do not install the unit at the place where the possibility of inflammable gas leakage exists. If gas leakage should arise and the gas builds
up around the unit, such situation may lead to ignition.
up around the unit, such situation may lead to ignition.
Mounting of the earth leakage circuit breaker is required. Omission in mounting of the earth leakage circuit breaker may lead to electric
shock.
shock.
Drain piping should be made to ensure secure drainage according to the manual for installation work and carry out the thermal insulation
to prevent the occurrence of condensation.
Imperfection in piping work leads to water leakage and may cause the house and property, etc. to become wet.
to prevent the occurrence of condensation.
Imperfection in piping work leads to water leakage and may cause the house and property, etc. to become wet.
Position the indoor unit, outdoor unit, power cords and indoor/outdoor unit connection cables in a way so that they are at least 1 meter
away from televisions and radios. This is to avoid problems such as interference with picture and/or sound. (However, note that
depending on the electromagnetic wave conditions, interference may still occur even if the separation distance is more than 1 meter.)
away from televisions and radios. This is to avoid problems such as interference with picture and/or sound. (However, note that
depending on the electromagnetic wave conditions, interference may still occur even if the separation distance is more than 1 meter.)
11.5.1
ACCESSORIES PACKED IN THE INDOOR UNIT CONTAINER
Name Q’ty Appearance
Purpose
Drain hose with a clip
1
For drain piping
Heat insulator
2
For insulating refrigerant pipe joint
Band 4
For fastening the heat insulator
Flat washer for M10
8
For fixing the hanging bolts
Screw M5
4
Set screw for paper model and panel fixing
Installation Instruction
1
This manual
11.5.2
SELECTING THE LOCATION FOR THE INDOOR UNIT
Provide a check port on the piping side ceiling for repair and maintenance.
x Install the indoor unit once the following conditions are satisfied and after receiving the customer approval.
x Install the indoor unit once the following conditions are satisfied and after receiving the customer approval.
1. The indoor unit must be within a maintenance space.
2. The indoor unit must be free from any obstacles in path of the air inlet and outlet, and must allow spreading
2. The indoor unit must be free from any obstacles in path of the air inlet and outlet, and must allow spreading
of air throughout the room.
(Unit: mm)
Obstacles
Floor
(Unit: mm)
1000 or
more
more
500 or
more
more
500 or
more
more
500 or
more
more
2500 –
3000
300 or
les
s
Beam
ސ If the height from the floor to ceiling exceeds three meters, air flow distribution deteriorates and the effect is
decreased.
Warnings
3. The installation position must be able to support a load four times the indoor unit weight.
4. The indoor unit must be away from heat and steam sources, but avoid installing it near an entrance.
5. The indoor unit must allow easy draining.
6. The indoor unit must allow easy connection to the outdoor unit.
7. Place the indoor unit according to the height from the ceiling shown in the table below.
8. The indoor unit must be from at least 3m away from any noise-generating equipment. The electrical wiring
4. The indoor unit must be away from heat and steam sources, but avoid installing it near an entrance.
5. The indoor unit must allow easy draining.
6. The indoor unit must allow easy connection to the outdoor unit.
7. Place the indoor unit according to the height from the ceiling shown in the table below.
8. The indoor unit must be from at least 3m away from any noise-generating equipment. The electrical wiring
should be locally decided.
9. If the power supply is subject to noise generation, add a suppressor.
10. Do not install the indoor unit in a laundry. Electric shocks may result.
11. Before installing in quiet room such as a bedroom, please consult with an authorized distributor.
10. Do not install the indoor unit in a laundry. Electric shocks may result.
11. Before installing in quiet room such as a bedroom, please consult with an authorized distributor.
94
Note
Ɣ
Thoroughly study the following installation locations
1. In such places as restaurants and kitchens, considerable amount of oil steam and flour adhere to the turbo
fan, the fin of the heat exchanger and the drain pump, resulting in heat exchange reduction, spraying,
dispersing of water drops, drain pump malfunction, etc.
In these cases, take the following actions:
dispersing of water drops, drain pump malfunction, etc.
In these cases, take the following actions:
x Make sure that the ventilation fan for smoke-collecting hood on a cooking table has sufficient capacity so that
it draws oily steam which should not flow into the suction of the air conditioner.
x Make enough distance from the cooking room to install the air conditioner in such place where it may not
suck in oily steam.
Air conditioner
Cooking table
Ensure ample
distance
2. Avoid installing the air conditioner in such circumstances where cutting oil mist or iron powder exist especially
in factories, etc.
3. Avoid places where inflammable gas is generated, flows-in, contaminated, or leaked.
4. Avoid places where sulphurous acid gas or corrosive gas can be generated.
5. Avoid places near high frequency generators.
4. Avoid places where sulphurous acid gas or corrosive gas can be generated.
5. Avoid places near high frequency generators.
Model name
Height from the ceiling
S-22YA1E5 S-28YA1E5
S-36YA1E5 S-45YA1E5
S-56YA1E5
S-36YA1E5 S-45YA1E5
S-56YA1E5
280mm or more
11.5.3
INSTALLATION OF INDOOR UNIT
CEILING OPENING DIMENSIONS AND HANGING BOLT LOCATION
The paper model for installation expand or shrink
according to temperature and humidity.
Check on dimensions before using it.
The paper model for installation expand or shrink
according to temperature and humidity.
Check on dimensions before using it.
Caution
During the installation, care must be taken not to
damage electric wires.
damage electric wires.
x The dimensions of the paper model for installation
are the same as those of the ceiling opening
dimensions.
dimensions.
x Be sure to discuss the ceiling drilling work with the
workers concerned.
This air conditioner uses a drain up motor.
Horizontally install the unit using a level gauge.
(Hanging bolt)
Drain pipe
(Unit: mm)
650 (
C
e
iling op
ening)
530 (
H
a
nging
bolt
)
580 (
U
nit
s
iz
e
)
580 (Unit size)
Refrigerant pipe
530
0
6
0
6
60
60
650 (Ceiling opening)
95
POSITIONS OF AIR CONDITIONER BODY AND CEILING SURFACE
Flat washer for M10 (accessory)
Nut
(W3/8 or M10)
(W3/8 or M10)
Flat washer for M10 (accessory)
Hanging bolt
(W3/8 or M10)
(W3/8 or M10)
Nut
(W3/8 or M10)
(W3/8 or M10)
M10 Spring washer
Warning
Tighten the nut and bolt to prevent unit from falling
HANGING POSITION OF THE AIR CONDITIONER BODY
Keep the length of the bolt
from the bracket to 40 mm
from the bracket to 40 mm
Ceiling
Adjust to the same height
Paper model
for installation
for installation
Set screw for
paper model
(4 pieces)
paper model
(4 pieces)
Open the ceiling board along the
other edge of the paper model.
other edge of the paper model.
Air conditioner body
113 m
m
2
82 m
m
292 m
m
and abov
e
11.5.4 REFRIGERANT
PIPING
Refrigerant is charged to the outdoor unit. For details, see the manual for installation work of outdoor unit. (Additional
charging, etc.)
1.
charging, etc.)
1.
Brazing for piping.
a. Execute brazing before tightening the flare nut.
b. Brazing must be executed while blowing
a. Execute brazing before tightening the flare nut.
b. Brazing must be executed while blowing
nitrogen gas. (This prevents generation of
oxidized scale in copper pipe.)
oxidized scale in copper pipe.)
2.
When there is a lot of brazings for long piping,
install a strainer midway of the piping. (The
strainer is locally supplied.)
install a strainer midway of the piping. (The
strainer is locally supplied.)
3.
Use clean copper pipe with inner wall surface
free from mist and dust. Blow nitrogen gas or air
to blow off dust in the pipe before connection.
free from mist and dust. Blow nitrogen gas or air
to blow off dust in the pipe before connection.
4.
Form the piping according to its routing. Avoid
bending and bending back the same piping point
more than three times. (This will result in
hardening of the pipe).
bending and bending back the same piping point
more than three times. (This will result in
hardening of the pipe).
5.
After deforming the pipe, align centers of the
union fitting of the indoor unit and the piping, and
tighten them firmly with wrenches.
union fitting of the indoor unit and the piping, and
tighten them firmly with wrenches.
6.
Connect pipe to the service valve in the outdoor
unit.
unit.
7.
After completed the piping connection, be sure to
check if there is gas leakage in indoor and
outdoor connection.
outdoor connection.
Union
round mark
x Confirm the round mark of the union (thin side) is
always at lower direction after connecting piping.
Vacuum drying
After completing the piping connection, execute vacuum drying for the connecting piping and the indoor unit.
The vacuum drying must be carried out by using the service ports of both the liquid and gas side valves.
CAUTION Use two wrenches and tighten with regular torque.
After completing the piping connection, execute vacuum drying for the connecting piping and the indoor unit.
The vacuum drying must be carried out by using the service ports of both the liquid and gas side valves.
CAUTION Use two wrenches and tighten with regular torque.
Flare nut fastening torque N•m (kgf•cm)
Liquid side piping
Gas side piping
ø6.35mm 18
(180) ø12.7mm 55
(560)
ø6.35mm
ø12.7mm
96
11.5.5
INDOOR UNIT DRAIN PIPING
x Drain piping must have down-slope (1/50 to
1/100); be sure not to provide up-and-down slope
to prevent reversal flow.
to prevent reversal flow.
x During drain piping connection, be careful not to
exert extra force on the drain port at the indoor
unit.
unit.
x The outside diameter of the drain connection at
the indoor unit is 32 mm.
Piping material: Polyvinyl chloride pipe VP-25 and
pipe fittings.
pipe fittings.
x Be sure to perform heat insulation on the drain
piping.
Heat insulation material: Polyethylene foam with
thickness more than 8 mm (local supply).
thickness more than 8 mm (local supply).
Upward routing
Pipe clamp
Indoor
unit
Trap
Down-slope
x The height of drain may be possible up to 750 mm.
Down-slope (1/50 ~ 1/100)
Drain port
750 m
m
or
les
s
Indoor unit
Elbow
Elbow
x When drain set piping, install as shown in the
figure below.
Drain Test
The air conditioner uses a drain up motor to drain water. Use the following procedure to test the drain up motor
operation.
x Connect the main drain pipe to exterior and leave
The air conditioner uses a drain up motor to drain water. Use the following procedure to test the drain up motor
operation.
x Connect the main drain pipe to exterior and leave
it provisionally until the test comes to an end.
x Feed water to the flexible drain hose and check
the piping for leakage.
x Be sure to check the drain up motor for normal
operating and noise when electric wiring is
complete.
complete.
x When the test is complete, connect the flexible
drain hose to the drain port.
Feed water
Drain hose
Drain up motor
Glue the joint
Drain hose connection
Use the clip (accessory)
Use the clip (accessory)
Main drain
pipe
pipe
Drain
port
11.5.6 HEAT
INSULATION
Caution
Be sure to perform heat insulation on the drain, liquid and gas piping. Imperfection in heat insulation work leads to water
leakage.
leakage.
1. Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120°C).
Overlap with heat
insulator for piping.
insulator for piping.
Indoor
unit
Band
(Accessory)
(Accessory)
Heat insulator
for piping
(Local supply)
for piping
(Local supply)
Heat insulator
(Accessory)
(Accessory)
Hose clip (Accessory)
Heat insulator (Local
supply) (The thickness
must be at least 8 mm.)
supply) (The thickness
must be at least 8 mm.)
Flexible hose with
heat insulator
(Accessory)
heat insulator
(Accessory)
PVC pipe
(O.D. ø25)
(Local supply)
(O.D. ø25)
(Local supply)
To be glued
It may be required to take off this part for checking
or servicing the drain up motor. Please do not glue.
or servicing the drain up motor. Please do not glue.
Make sure that there is no clearance here.
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