Panasonic CS-F24DB4E5 / CU-B24DBE5 / CS-F28DB4E5 / CU-B28DBE5 / CS-F28DB4E5 / CU-B28DBE8 / CS-F34DB4E5 / CU-B34DBE5 / CS-F34DB4E5 / CU-B34DBE8 / CS-F43DB4E5 / CU-B43DBE8 / CS-F50DB4E5 / CU-B50DBE8 Service Manual ▷ View online
49
10.2. Refrigerant additional charge
1. Piping installation by standard piping
• At the time of shipment from the factory, this unit is charged with enough refrigerant for an equivalent pipe length of 30 m.
(Refer the following table)
But when the piping length exceeds 30m, additional charge is required according to the following table.
Example:
CU-B24DBE5
In case of 50m long pipe (one way), the amount of refrigerant to be replenished is: (50 - 30) x 50 = 1,000g
But when the piping length exceeds 30m, additional charge is required according to the following table.
Example:
CU-B24DBE5
In case of 50m long pipe (one way), the amount of refrigerant to be replenished is: (50 - 30) x 50 = 1,000g
Model Name
Standard piping specification
Liquid piping
(dia.mm)
Gas piping
(dia.mm)
Gas chargeless
length (m)
Additional gas
volume (g/m)
CU-B24DBE5
9.52
15.88
30
50
CU-B28DBE5
9.52
15.88
30
50
CU-B28DBE8
CU-B34DBE5
CU-B34DBE5
9.52
15.88
30
50
CU-B34DBE8
CU-B43DBE8
CU-B43DBE8
9.52
15.88
30
50
CU-B50DBE8
9.52
15.88
30
50
50
10.3. Position of the centre gravity
MODEL NAME
OUTSIDE DIMENSIONS
NET WEIGHT
CENTRE OF GRAVITY
WIDTH (mm)
DEPTH (mm)
HEIGHT (mm)
kg
X (mm)
Y (mm)
Z (mm)
CU-B24DBE5
900
320
795
69
560
150
320
CU-B28DBE5
900
320
795
69
560
150
320
CU-B28DBE8
CU-B34DBE5
CU-B34DBE5
900
320
1170
102
560
150
450
CU-B34DBE8
100
CU-B43DBE8
900
320
1170
102
560
150
450
CU-B50DBE8
900
320
1170
102
560
150
450
51
10.4. Indoor unit installation
• Precautions shown here are differentiated between
Warnings and
Cautions. Those that have much chances for leading to
significant result such as fatality or serious injury if wrong installation would have been carried out are listed compiling them
especially into the column of
Warnings.
However, even in the case of items which are listed in the column of
Cautions, such items also have a chance for leading to
significant result depending on the situations.
In either case, important descriptions regarding the safety are listed, then observe them without fail.
In either case, important descriptions regarding the safety are listed, then observe them without fail.
• As to indications with illustration
• After installation work has been completed, do not only make sure that the unit is free from any abnormal condition through the
execution of try run but also explain how to use and how to perform maintenance of this unit to the customer according to the
instruction manual.
instruction manual.
• In addition, request the customer to keep this manual for installation work together with instruction manual.
FOUR WAY CASSETTE TYPE AIR CONDITIONERS INSTALLATION INSTRUCTIONS
Precautions in terms of safety
Carry out installation work with reliability after through reading of this “Precautions in terms of safety”.
This mark means “Caution” or “Warning”.
This mark means “Earth”.
Warnings
The appliance must be installed by technician, who takes into
account the requirements given by ISO5149 or eventual
equivalent requirements.
account the requirements given by ISO5149 or eventual
equivalent requirements.
If installing inside a small room, measures should be taken to
prevent refrigerant levels from building up to critical concentrations
in the event of a refrigerant leak occurring. Please discuss with the
place of purchase for advice on what measures may be necessary
to prevent critical concentrations being exceeded. If the refrigerant
leaks and reaches critical concentration levels, there is the danger
that death from suffocation may result.
prevent refrigerant levels from building up to critical concentrations
in the event of a refrigerant leak occurring. Please discuss with the
place of purchase for advice on what measures may be necessary
to prevent critical concentrations being exceeded. If the refrigerant
leaks and reaches critical concentration levels, there is the danger
that death from suffocation may result.
As to installation, request the distributor or vendor to perform it.
Imperfection in installation caused by that having been carried out
by the customer himself may leads to water leakage, electric
shock, fire, etc.
Imperfection in installation caused by that having been carried out
by the customer himself may leads to water leakage, electric
shock, fire, etc.
Securely attach the protective covers for the outdoor unit
connection cables and power cord so that they do not lift up after
installation. If the covers are not properly attached and installed,
the terminal connections may overheat, and fire or electric shock
may result.
connection cables and power cord so that they do not lift up after
installation. If the covers are not properly attached and installed,
the terminal connections may overheat, and fire or electric shock
may result.
Carry out the installation work with reliability according to this
manual for installation work.
Imperfection in installation leads to water leakage, electric shock,
fire, etc.
manual for installation work.
Imperfection in installation leads to water leakage, electric shock,
fire, etc.
Switch off all supplies before accessing any electrical part.
Carry out the installation work with reliability on the place that can
bear the weight of this unit sufficiently. Insufficient strength leads to
injury due to falling of the unit.
bear the weight of this unit sufficiently. Insufficient strength leads to
injury due to falling of the unit.
If refrigerant gas escapes during installation, ventilate the affected
area. If the refrigerant gas comes into contact with sparks or naked
flames, it will cause toxic gases to be generated.
area. If the refrigerant gas comes into contact with sparks or naked
flames, it will cause toxic gases to be generated.
Carry out predetermined installation work in preparation for strong
wind such as typhoon, earthquake. Imperfection in installation
work may lead to accidents arisen from overturn, etc.
wind such as typhoon, earthquake. Imperfection in installation
work may lead to accidents arisen from overturn, etc.
Once installation work is completed, check that there are no
refrigerant gas in the room that can come into contact with sparks
or flames from a fan heater, stove or kitchen range, which will
cause toxic gases to be generated.
refrigerant gas in the room that can come into contact with sparks
or flames from a fan heater, stove or kitchen range, which will
cause toxic gases to be generated.
The unit must be installed in accordance with applicable national
and local regulations.Any electrical work should only be carried
out by qualified technician and use exclusive circuits without fail.
Presence of insufficient capacity in power circuit or imperfection in
execution leads to electric shock, fire, etc.
and local regulations.Any electrical work should only be carried
out by qualified technician and use exclusive circuits without fail.
Presence of insufficient capacity in power circuit or imperfection in
execution leads to electric shock, fire, etc.
When performing piping work do not mix air except for specified
refrigerant (R410A) in refrigeration cycle. it causes capacity down,
and risk of explosion and injury due to high tension inside the
refrigerant cycle.
refrigerant (R410A) in refrigeration cycle. it causes capacity down,
and risk of explosion and injury due to high tension inside the
refrigerant cycle.
52
10.4.1.
Accessories packed in the indoor unit container
10.4.2.
Selecting the location for indoor unit
Provide a check port on the piping side ceiling for repair and maintenance.
• 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 of air
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.
* If the height from the floor to ceiling exceeds three meters, air flow distribution deteriorates and the effect is decreased.
3. The installation position must be able to support a load four times the indoor unit weight.
Warnings
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 illustration below.
8. The indoor unit must be from at least 3m away from any noise-generating equipment. The electrical wiring must be
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 illustration below.
8. The indoor unit must be from at least 3m away from any noise-generating equipment. The electrical wiring must be
shielded with a steel conduit.
9. If the power supply is subject to noise generation, add a suppressor.
Wiring shall be connected using specified cables and fix them
securely so that external force of the cables may not transfer to the
terminal connection section.
Imperfect connection and fixing leads to fire, etc.
securely so that external force of the cables may not transfer to the
terminal connection section.
Imperfect connection and fixing leads to fire, etc.
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.
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 lead to water leakage and may cause
the house and property, etc. to become wet
to the manual for installation work and carry out the thermal
insulation to prevent the occurrence of condensation.
Imperfection in piping work lead to water leakage and may cause
the house and property, etc. to become wet
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.
inflammable gas leakage exists. If gas leakage should arise and the
gas builds up around the unit, such situation may lead to ignition.
Position the indoor unit and 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 problem 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.)
outdoor unit connection cables in a way so that they are at least 1
meter away from televisions and radios.
This is to avoid problem 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.)
Mounting of the earth leakage circuit breaker is required. Omission
in mounting of the earth leakage circuit breaker may lead to electric
shock.
in mounting of the earth leakage circuit breaker may lead to electric
shock.
Name
Q’ty
Appearance
Purpose
Name
Q’ty
Appearance
Purpose
Drain hose with a
clip
1
For drain piping
Flat washer for
M10
8
For fixing the hanging bolts
Heat insulator
2
For insulating refrigerant
pipe joint
Screw M5
4
Set screw for paper model
and panel fixing
Band
4
For fastening the heat
insulator
Warnings
Click on the first or last page to see other CS-F24DB4E5 / CU-B24DBE5 / CS-F28DB4E5 / CU-B28DBE5 / CS-F28DB4E5 / CU-B28DBE8 / CS-F34DB4E5 / CU-B34DBE5 / CS-F34DB4E5 / CU-B34DBE8 / CS-F43DB4E5 / CU-B43DBE8 / CS-F50DB4E5 / CU-B50DBE8 service manuals if exist.