Bosch Climate 5000 SCI 24 CAS/ OU- OUE User manual

6720887405 (2018/04) GB
CASSETTE-TYPE AIR CONDITIONER
Climate 5000 SCI
CL5000SCI
18 CAS/ OU- OUE
24 CAS/ OU- OUE
36 CAS/ OU- OUE
48 CAS/OU- OUE
Installation Manual
Read this manual carefully before installing or operating your new air conditioning unit.
Ensure to save this manual for future reference.

2Climate 5000 SCI – 6720887405 (2018/04)
Table of Content
1 Accessories....................................................................... 3
2 Safety Precautions ............................................................ 4
3 Installation Overview......................................................... 6
4 Indoor Unit Installation ...................................................... 7
4.1 Indoor Unit Parts ..................................................... 7
4.2 Indoor Unit Installation Instructions............................ 7
5 Outdoor Unit Installation.................................................. 10
5.1 Outdoor Unit Installation Instructions ....................... 10
5.2 Drain Joint Installation............................................ 12
5.3 Notes On Drilling a Hole in the Wall ........................... 12
6 Drainpipe Installation ...................................................... 13
7 Refrigerant Piping Connection ......................................... 14
7.1 Notes On Pipe Length and Elevation.......................... 14
7.2 Refrigerant Piping Connection Instructions................ 15
8 Wiring............................................................................. 17
8.1 Outdoor Unit Wiring ............................................... 18
8.2 Indoor Unit Wiring.................................................. 18
8.3 Power Specifications.............................................. 19
9 Air Evacuation................................................................. 20
9.1 Evacuation Instructions .......................................... 20
9.2 Note On Adding Refrigerant..................................... 20
10 Panel Installation............................................................. 21
11 Test Run.......................................................................... 23
12 European Disposal Guidelines .......................................... 24
13 Information on Servicing.................................................. 24
CAUTION
Risk of fire (for R32 refrigerant only)

Climate 5000 SCI – 6720887405 (2018/04) 3
Accessories
1 Accessories
The air conditioning system comes with the following accessories. Use all of the installation parts and accessories to install the air conditioner. Improper
installation may result in water leakage, electrical shock and fire or cause the equipment to fail.
Name Shape Quantity
Indoor unit installation Installation paper template (some
models)
1
Refrigeration Fittings Soundproof/insulation sheath (some
models)
1
Drainpipe Fittings Outlet pipe sheath (some models) 1
Outlet pipe clasp (some models) 1
Drain joint (some models) 1
Seal ring (some models) 1
Installation Accessory (some
models)
Ceiling hook 4
Suspension bolt 4
Orifice tube (some units) 1
EMC Magnetic Ring (some models) Magnetic ring (wrap the electric wires S1
& S2 ( P & Q & E ) around the magnetic
ring twice)
S1&S2(P&Q&E
1
Magnetic ring (the connective cable
between indoor unit and outdoor unit
after installation.)
1
Remote controller & Its Frame
(some models)
Remote controller 1
Fixing screw for remote controller holder
ST2.9 x 10
2
Remote controller holder 1
Dry battery AAA 2
Remote controller illustration ––––––––– 1
Others Owner’s manual ––––––––– 1
Installation manual ––––––––– 1
Table 1.

4Climate 5000 SCI – 6720887405 (2018/04)
Safety Precautions
2 Safety Precautions
Read Safety Precautions Before Installation
Incorrect installation due to ignoring instructions can cause serious
damage or injury.
The seriousness of potential damage or injuries is classified as either a
WARNING or CAUTION.
WARNING
Failure to observe a warning may result in serious injury. The
appliance must be installed in accordance with national regulations.
CAUTION
Failure to observe a caution may result in injury or equipment
damage.
WARNING
•Carefully read the safety precautions before installation.
•In certain functional environments, such as kitchens, server rooms,
etc., the use of specially designed air-conditioning units is highly
recommended.
•Only Qualified Personnel should install, repair and service this
air conditioning unit.
Improper installation may result in electrical shock, short circuit,
leaks, fire or other damage to the equipment and personal property.
•Strictly follow the installation instructions set forth in this
manual.
Improper installation may result in electrical shock, short circuit,
leaks, fire or other damage to the equipment.
•An all-pole disconnection device which has at least 3 mm clearances
in all poles and a leakage current that may exceed 10 mA, the resid-
ual current device (RCD) having a rated residual operating current
not exceeding 30 mA, and disconnection must be incorporated in
the fixed wiring in accordance with the wiring rules.
•Before you install the unit, consider strong winds, typhoons and
earthquakes that might affect your unit and locate it accordingly.
Failure to do so could cause the equipment to fail.
•After installation, ensure there are no refrigerant leaks and that the
unit is operating properly. The refrigerant is both toxic and flamma-
ble and poses a serious health and safety risk.
•Do not use means for accelerating the defrosting process or for
cleaning, other than those recommended by the manufacturer.
•The appliance must be stored so as to prevent mechanical damage
from occurring.
WARNING
•The appliance disconnection must be incorporated with an all-pole
disconnection device in the fixed wiring in accordance with the
wiring rules.
•Any person who is involved with working on or breaking a refrigerant
circuit should hold a currently valid certificate from an industry-ac-
credited assessment authority, which authorises their competence
to handle refrigerants safely in accordance with an industry rec-
ognised assessment specification.
•Servicing must only be performed by Qualified Personnel. Mainte-
nance and repair requiring the assistance of other skilled personnel
be carried out under the supervision of Qualified Personnel in the
use of flammable refrigerants.
•The appliance must be stored so as to prevent mechanical damage
from occurring.
•Keep ventilation openings clear of obstruction.
NOTE:
The following information is required for the units with R32 refrigerant.
•The appliance must be stored in a room without continuously oper-
ating ignition sources (for example: open flames, an operating gas
appliance or an operating electric heater).
•Do not pierce or burn.
•Be aware that the refrigerants may be odourless.
•Compliance with national gas regulations must be observed.
•The appliance must be stored in a well-ventilated area where the
room size corresponds to the room area as specified for operation.
•The appliance must be installed, operated and stored in a room with
a floor area larger than X m², installation of pipe-work must be kept
to a minimum X m² (please see the following form).
The appliance must not be installed in an unventilated space if that
space is smaller than X m² (please see the following form). Spaces
where refrigerant pipes are located must be compliant with national
gas regulations.
Model (Btu/h) Amount of
refrigerant to be
charged (kg)
Maximum
installation
height (m)
Minimum
room area
(m²)
≤30000 ≤2.048 2.2m 4
30000-48000 2.048-3.0 2.2m 4
>48000 >3.0 2.2m 5
Table 2.
Note about Fluorinated Gases
1. This air-conditioning unit contains fluorinated gases. For specific
information on the type of gas and the amount, please refer to the
relevant label on the unit itself.
2. Installation, service, maintenance and repair of this unit must be
performed by qualified personnel.
3. Product uninstallation and recycling must be performed by a
qualified personnel.
4. If the system has a leak-detection system installed, it must be
checked for leaks at least every 12 months.
5. When the unit is checked for leaks, proper record-keeping of all
checks is strongly recommended.

Climate 5000 SCI – 6720887405 (2018/04) 5
Safety Precautions
Explanation of symbols displayed on the indoor unit or outdoor unit
(applicable to the unit with R32 refrigerant only):
WARNING This symbol shows that this appliance
uses a flammable refrigerant. If the
refrigerant is leaked and exposed to
an external ignition source, there is a
risk of fire.
CAUTION This symbol shows that the operation
manual should be read carefully.
CAUTION This symbol shows that a service
person should be handling this equip-
ment according to the installation
manual.
CAUTION
CAUTION This symbol shows that information
is available, such as the operating
manual or installation manual.

6Climate 5000 SCI – 6720887405 (2018/04)
Installation Overview
3 Installation Overview
INSTALLATION ORDER
L N
123
MC MC
4
5
6
78
Install the indoor unit
(Page 9)
Evacuate the refrigeration system
(Page 25)
Install the front panel
(Page 27)
Install the outdoor unit
(Page 12)
Connect the wires
(Page 22)
Perform a test run
(Page 29)
Install the drainpipe
(Page 15)
Connect the refrigerant pipes
(Page 19)

Climate 5000 SCI – 6720887405 (2018/04) 7
Indoor Unit Installation
4 Indoor Unit Installation
4.1 Indoor Unit Parts
Drain pump
(within indoor unit)
Drain pipe
Air outlet
Air inlet
Front grille
Display panel
Louver
Refrigerant pipe
Fig. 1.
Safety Precautions
WARNING
•Securely install the indoor unit on a structure that can sustain its
weight. If the structure is too weak, the unit may fall and cause
personal injury, unit and property damage.
•Install the indoor unit at a height of more than 2.5 m above the floor.
•DO NOT install the indoor unit in a bathroom or laundry room, as
excessive moisture can short the unit and corrode the wiring.
CAUTION
•Install the indoor and outdoor units, cables, and wires at least 1m
from televisions and radios to prevent static or image distortion.
Depending on the appliances, a 1 m distance may not be sufficient.
•If the indoor unit is installed on metal, it must be electrically
grounded.
4.2 Indoor Unit Installation Instructions
NOTE:
Panel installation should be done after piping and wiring.
Step 1: Select installation location
The indoor unit should be installed in a location that meets the following
requirements:
fThe unit is at least 1 m from the nearest wall.
fThere is enough room for installation and maintenance.
fThere is enough room for the connecting pipe and drainpipe.
fThe ceiling is horizontal and its structure can sustain the weight of
the indoor unit.
fThe air inlet and outlet are not impeded.
fThe airflow can fill the entire room.
fThere is no direct radiation from heaters.
CAUTION
DO NOT install the unit in the following locations:
In areas with oil drilling or fracking
In coastal areas with high salt content in the air In areas with caustic
gases in the air, such as near hot springs
In areas with power fluctuations, such as factories
In enclosed spaces, such as cabinets
In kitchens that use natural gas
In areas with strong electromagnetic waves
In areas where store flammable materials or gas are stored
In rooms with high humidity, such as bathrooms or laundry rooms
RECOMMENDED DISTANCES BETWEEN THE INDOOR UNIT AND
THECEILING
The distance between the mounted indoor unit and the internal ceiling
should meet the following specifications. (See Fig. 2)

8Climate 5000 SCI – 6720887405 (2018/04)
Indoor Unit Installation
Connecting point of
drain pipe
Ceiling
Front panel
>2.5 m
880 mm (Ceiling hole)
Ground
Ceiling board
Connecting point of refrigerant
pipe (liquid side)
Connecting point of refrigerant
pipe (gas side)
Fig. 2.
MODEL Length of A (mm) Length of H (mm)
18 205 > 235
24 205 > 235
30 205 > 235
30-48 245 > 275
48-60 287 > 317
Table 3. Distance from ceiling relative to height of indoor unit
Step 2: Hang indoor unit.
1. Use the included paper template to cut a rectangular hole in the
ceiling, leaving at least 1 m on all sides. The cut hole size should be
40 mm larger than the body size (See Fig. 3).
Ensure to mark the areas where ceiling hook holes will be drilled.
Refrigerant piping side
780 mm (Suspension bolt)
680 mm (Suspension bolt)
840 mm (Body)
840 mm (Body)
950 mm (Ceiling opening)
950 mm (Ceiling opening)
18-48K ceiling hole size
Drain hose side
Fig. 3.
Refrigerant piping side
840 mm (Suspension bolt)
840 mm (Suspension bolt)
900 mm (Body)
900 mm (Body)
1020 mm (Ceiling opening)
1020 mm (Ceiling opening)
60K ceiling hole size
Drain hose side
Fig. 4.

Climate 5000 SCI – 6720887405 (2018/04) 9
Indoor Unit Installation
> 1000mm
> 1000mm
> 1000mm > 1000mm
Fig. 5.
CAUTION
The unit body should align perfectly with the hole. Ensure that the
unit and the hole are the same size before proceding further.
2. Drill 4 holes 50 mm deep at the ceiling hook positions in the internal
ceiling. Ensure to hold the drill at a 90° angle to the ceiling.
3. Using a hammer, insert the ceiling hooks into the pre-drilled holes.
Secure the bolt using the included washers and nuts.
4. Install the four suspension bolts (See Fig. 6).
Fig. 6.
5. Mount the indoor unit. You will need two people to lift and secure it.
Insert suspension bolts into the unit’s hanging holes. Fasten them
using the included washers and nuts (See Fig. 7).
Fig. 7.
NOTE:
The bottom of the unit should be 10 - 18 mm higher than the ceiling
board. Generally, L (indicated in Fig. 8) should be half the length of the
suspension bolt or long enough to prevent the nuts from coming off.
L
Main body
Ceiling board
10 - 18 mm
Wall
Fig. 8.
CAUTION
Ensure that the unit is completely level. Improper installation can
cause the drain pipe to back up into the unit or water leakage.
NOTE:
Ensure that the indoor unit is level. The unit is equipped with a built-in
drain pump and float switch. If the unit is tilted against the direction
of condensate flow (the drainpipe side is raised), the float switch may
malfunction and cause water to leak.
Water level
Fig. 9.

10 Climate 5000 SCI – 6720887405 (2018/04)
Outdoor Unit Installation
NOTE FOR NEW HOME INSTALLATION
When the unit is installed in a new home, the ceiling hooks can be
embedded in advance. Ensure that the hooks do not come loose due
to concrete shrinkage. After installing the indoor unit, fasten the paper
installation template onto the unit with bolts (M6X12) to determine
in advance the dimension and position of the opening on the ceiling.
Follow the instructions above for the remainder of the installation.
Main body
M6 x 12 bolts
Installation template
Fig. 10.
5 Outdoor Unit Installation
5.1 Outdoor Unit Installation Instructions
Theoutdoor unitshould beinstalled ina locationthat meetsthe following
requirements:
fPlace the outdoor unit as close to the indoor unit as possible.
fEnsure that there is enough room for installation and maintenance.
fThe air inlet and outlet must not be obstructed or exposed to strong
wind.
fEnsure that the location of the unit will not be subject to snowdrifts,
accumulation of leaves or other seasonal debris. If possible, provide
an awning for the unit. Ensure that the awning does not obstruct
airflow.
fThe installation area must be dry and well ventilated.
fEnsure there is enough room to install the connecting pipes and
cables and to access them for maintenance.
Strong wind
Strong wind
Fig. 11.
fThe area must be free of combustible gases and chemicals.
fThe pipe length between the outdoor and indoor unit may not exceed
the maximum allowable pipe length.
fIf possible, DO NOT install the unit where it is exposed to direct
sunlight.
fIf possible, ensure the unit is located far away from neighboring
property so that the noise from the unit will not disturb them.
fIf the location is exposed to strong winds (for example: coastal area),
the unit must be placed against the wall to shelter it from the wind. If
necessary, use an awning. (See Fig. 11 & 12)
fInstall the indoor and outdoor units, cables and wires at least 1
meter from televisions or radios to prevent static or image distortion.
Depending on the radio waves, a 1 meter distance may not be enough
to eliminate all interference.
Strong wind
Fig. 12.

Climate 5000 SCI – 6720887405 (2018/04) 11
Outdoor Unit Installation
Step 2: Install outdoor unit.
Fix the outdoor unit with anchor bolts (M10)
>600 mm
Fix with bolts
CAUTION
•Ensure to remove any obstacles that may block air circulation.
•Ensure you refer to the length specifications to ensure that there is
enough room for installation and maintenance.
Split Type Outdoor Unit
(Refer to Fig 14, 15, 16, 20 and Table 4)
W
H
Fig. 13.
W
H
Fig. 14.
A
B
D
Fig. 15.
Outdoor Unit Dimensions
W x H x D
Mounting Dimensions
Distance A Distance B
760x590x285 530 290
810x558x310 549 325
845x700x320 560 335
900x860x315 590 333
945x810x395 640 405
990x965x345 624 366
938x1369x392 634 404
900x1170x350 590 378
800x554x333 514 340
845x702x363 540 350
946x810x420 673 403
946x810x410 673 403
952x1333x410 634 404
952x1333x415 634 404
Table 4. Length Specifications of Split Type Outdoor Unit
(unit: mm)
Vertical Discharge Type Outdoor Unit
NOTE :
The minimum distance between the outdoor unit and walls described in
the installation guide does not apply to airtight rooms. Ensure to keep
the unit unobstructed in at least two of the three directions (M, N, P)
(See Fig. 16)
M
N
P
600 mm above
300 mm on left
600 mm on right
300 mm from back wall
2000 mm in front
Fig. 16.

12 Climate 5000 SCI – 6720887405 (2018/04)
Outdoor Unit Installation
Rows of series installation
L A
L ≤ H L ≤ 1/2H 250 mm or more
1/2H < L ≤ H 300 mm or more
L > H Cannot be installed
Table 5. The relations between H, A and L are as follows
L
H
A
250 mm
or more
250 mm
or more
1500 mm
or more 600 mm
or more
3000 mm
or more
Fig. 17.
5.2 Drain Joint Installation
If the drain joint comes with a rubber seal (see Fig. 18 - A ), do the
following:
1. Fit the rubber seal on the end of the drain joint that will connect to
the outdoor unit.
2. Insert the drain joint into the hole in the base pan of the unit.
3. Rotate the drain joint 90° until it clicks in place facing the front of
the unit.
4. Connect a drain hose extension (not included) to the drain joint to
redirect water from the unit during heating mode.
If the drain joint does not come with a rubber seal (see Fig. 18 - B ), do
the following:
1. Insert the drain joint into the hole in the base pan of the unit. The
drain joint will click in place.
2. Connect a drain hose extension (not included) to the drain joint to
redirect water from the unit in heating mode.
NOTE :
Ensure the water drains to a safe location where it will not cause water
damage or a slipping hazard.
(A) (B)
Base pan hole of
outdoor unit
Seal
Seal
Drain joint
Fig. 18.
5.3 Notes On Drilling a Hole in the Wall
You must drill a hole in the wall for the refrigerant piping and the signal
cable that will connect the indoor and outdoor units.
1. Determine the location of the wall hole based on the location of the
outdoor unit.
2. Using a 65 mm core drill, drill a hole in the wall.
NOTE :
When drilling the wall hole, ensure to avoid wires, plumbing, and other
sensitive components.
3. Place the protective wall cuff in the hole. This protects the edges of
the hole and will help seal it when you finish the installation process.

Climate 5000 SCI – 6720887405 (2018/04) 13
Drainpipe Installation
6 Drainpipe Installation
The drainpipe is used to drain water from the unit. Improper installation
may cause unit and property damage.
CAUTION
•Insulate all piping to prevent condensation, which could lead to
water damage.
•If the drainpipe is bent or installed incorrectly, water may leak and
cause a malfunction of the water level switch.
•In HEAT mode, the outdoor unit will discharge water. Ensure that the
drain hose is placed in an appropriate area to avoid water damage
and slippage due to frozen drain water.
•DO NOT pull the drainpipe forcefully, as this could cause it to
disconnect.
NOTE ON PURCHASING PIPES
This installation requires a polyethylene tube (outside diameter = 37-
39mm, inside diameter = 32mm), which can be obtained at your local
hardware store or from your dealer.
Indoor Drainpipe Installation
Install the drainpipe as shown in Figure 20.
1. Cover the drainpipe with heat insulation to prevent condensation
and leakage.
2. Attach the mouth of the drain hose to the unit’s outlet pipe. Sheath
the mouth of the hose and clip it firmly with a pipe clasp. (Fig. 19)
Drain hose
Metal clamp Insulation
Drainpipe
connecting port
Fig. 19.
Downward slope
1/100
1-1.5 m
Fig. 20.
NOTE ON DRAINPIPE INSTALLATION
•When using an extended drainpipe, tighten the indoor connection
with an additional protection tube to prevent it from pulling loose.
•The drainpipe should slope downward at a gradient of at least
1/100 to prevent water from flowing back into the air conditioner.
•To prevent the pipe from sagging, space hanging wires every
1-1.5m.
•If the outlet of the drainpipe is higher than the body’s pump joint,
provide a lift pipe for the exhaust outlet of the indoor unit. The lift
pipe must be installed no higher than 750 mm from the ceiling
board, and the distance between the unit and the lift pipe must be
less than 300 mm. Incorrect installation could cause water to flow
back into the unit and flood.
•To prevent air bubbles, keep the drain hose level or slightly tilted up
(<75 mm).
Ceiling
≤300 mm 1 - 1.5 m
220 mm
≤530 mm
≤750 mm
0 - 75 mm
Fig. 21.
NOTE:
When connecting multiple drainpipes, install the pipes as shown in
Fig22.
0-530mm
≥100 mm
Fig. 22.
3. Using a 65 mm core drill, drill a hole in the wall. Ensure that the
hole is drilled at a slightly downward angle, so that the outdoor end
of the hole is lower than the indoor end by about 12mm. This will
ensure proper water drainage (See Fig.23). Place the protective
wall cuff in the hole. This protects the edges of the hole and will help
seal it when you finish the installation process.

14 Climate 5000 SCI – 6720887405 (2018/04)
Refrigerant Piping Connection
≈ 12 mm / 0.5 inch
Outdoor Indoor
Wall
Fig. 23.
NOTE:
When drilling the wall hole, make sure to avoid wires, plumbing, and
other sensitive components
4. Pass the drain hose through the wall hole. Ensure the water drains
to a safe location where it will not cause water damage or a slipping
hazard.
NOTE:
The drainpipe outlet should be at least 50 mm above the ground. If it
touches the ground, the unit may become blocked and malfunction. If
you discharge the water directly into a sewer, make sure that the drain
has a U or S pipe to catch odours that might otherwise come back into
the house.
7 Refrigerant Piping Connection
Safety Precautions
WARNING
•All field piping must be completed by qualified personnel and must
comply with the local and national regulations.
•When the air conditioner is installed in a small room, measures
must be taken to prevent the refrigerant concentration in the room
from exceeding the safety limit in the event of refrigerant leakage. If
the refrigerant leaks and its concentration exceeds its proper limit,
hazards due to lack of oxygen may result.
•When installing the refrigeration system, ensure that air, dust,
moisture or foreign substances do not enter the refrigerant circuit.
Contamination in the system may cause poor operating capacity,
high pressure in the refrigeration cycle, explosion or injury.
•Ventilate the area immediately if there is refrigerant leakage during
the installation. Leaked refrigerant gas is both toxic and flammable.
Ensure there is no refrigerant leakage after completing the installa-
tion work.
Refrigerant Piping with Twin Indoor Units
When installing multiple indoor units to a single outdoor unit, ensure
that the length of the refrigerant pipe and the drop height between the
indoor and outdoor units meets the following requirements:
LL1
L2
H2
H1
The drop height
between indoor unit
and outdoor unit
must be less than or
equal to 20 m
The drop height
between two
indoor units must
be less than or
equal to 500mm
Outdoor unit
Indoor unit
Indoor unit
The line branch pipe
Fig. 24.
7.1 Notes On Pipe Length and Elevation
Ensure that the length of the refrigerant pipe, the number of bends,
and the drop height between the indoor and outdoor units meets the
requirements shown in Table 6:
Type of model Capacity
(Btu/h)
Length of
piping
Maximum
drop height
Split Inverter <15K 25 10
≥15K - <24K 30 20
≥24K - <36K 50 25
≥36K - ≤60K 65 30
Table 6. The Maximum Length and Drop Height Based on Models
(Unit: m)
CAUTION
Mark the data plate with the installed orifice (for some models).
•Please purchase the fittings strictly according to the requirements
in the manual.
•Refer to the diagram when installing. (See Fig. 25)

Climate 5000 SCI – 6720887405 (2018/04) 15
Refrigerant Piping Connection
X
X
Indoor IndoorOutdoor
Liquid side Liquid side
Liquid side
Outdoor
Outdoor
Indoor
Fig. 25.
CAUTION
•Oil traps
If the indoor unit is installed higher than the outdoor unit:
- If oil flows back into the outdoor unit’s compressor, this might cause
liquid compression or deterioration of oil return. Oil traps in the
rising gas piping can prevent this.
An oil trap should be installed every 10 m of vertical suction line
riser. (See Fig. 26)
Gas piping
Indoor unit
Outdoor unit
Oil trap
Liquid piping
10 m
10 m
Fig. 26.
The indoor unit is installed higher than the outdoor unit
CAUTION
If the outdoor unit is installed higher than the indoor unit:
-It is recommended that vertical suction risers not be upsized.
Proper oil return to the compressor should be maintained with
suction gas velocity. If velocities drop below 7.62 m/s, the oil return
will be decreased. An oil trap should be installed every 6 m of vertical
suction line riser. (See Fig. 27)
Gas piping
Indoor unit
Outdoor unit
Oil trap
Liquid piping
6 m
6 m
Fig. 27.
The outdoor unit is installed higher than the indoor unit
Permitted length
Piping
length
Total piping
length
18K+18K 30 L+Max
(L1, L2)
24K+24K
30K+30K
50
(farthest dis-
tance from the
line pipe branch)
15 L1, L2
(farthest dis-
tance from the
line pipe branch)
10 L1-L2
Drop
height
Drop height
between indoor
and outdoor unit
20 H1
Drop height
between two
indoor units
0.5 H2
Table 7.
7.2 Refrigerant Piping Connection Instructions
CAUTION
•The branching pipe must be installed horizontally. An angle of more
than 10° may cause malfunction.
•DO NOT install the connecting pipe until both indoor and outdoor
units have been installed.
•Insulate both the gas and liquid piping to prevent water leakage.
Step1: Cut pipes
When preparing refrigerant pipes, take extra care to cut and flare them
correctly. This will ensure efficient operation and minimize the need for
future maintenance.

16 Climate 5000 SCI – 6720887405 (2018/04)
Refrigerant Piping Connection
1. Measure the distance between the indoor and outdoor units.
2. Using a pipe cutter, cut the pipe a little longer than the measured
distance.
CAUTION
DO NOT deform the pipe while cutting. Be extra careful not to damage,
dent, or deform the pipe while cutting. This will drastically reduce the
heating efficiency of the unit.
1. Ensure that the pipe is cut at a perfect 90° angle. Refer to Fig.28
for examples of bad cuts
90°
Oblique Rough Warped
Fig. 28.
Step 2: Remove burrs.
Burrs can affect the air-tight seal of a refrigerant piping connection. They
must be completely removed.
1. Hold the pipe at a downward angle to prevent burrs from falling into
the pipe.
2. Using a reamer or deburring tool, remove all burrs from the cut
section of the pipe.
Pipe
Reamer
Point down
Fig. 29.
Step 3: Flare pipe ends
Proper flaring is essential to achieve an airtight seal.
1. After removing burrs from the cut pipe, seal the ends with PVC tape
to prevent foreign materials from entering the pipe.
2. Sheath the pipe with insulating material.
3. Place flare nuts on both ends of pipe. Make sure they are facing in
the right direction, because you cannot put them on or change their
direction after flaring. See Fig. 30
Flare nut
Copper pipe
Fig. 30.
4. Remove the PVC tape from the ends of the pipe when you are ready.
5. Clamp the flare form on the end of the pipe. The end of the pipe
must extend beyond the flare form.
Flare form
Pipe
Fig. 31.
6. Place the flaring tool onto the form.
7. Turn the handle of the flaring tool clockwise until the pipe is fully
flared. Flare the pipe in accordance with the dimensions shown in
table 8.
Pipe
gauge
Tightening torque Flare dimension (A)
(Unit: mm)
Flare shape
Min. Max.
Ø 6.4 18-20 N.m
(183-204 kgf.cm)
8.4 8.7
R0.4~0. 8
45 °±2
90 °
±4
A
Fig. 32.
Ø 9.5 25-26 N.m
(255-265 kgf.cm)
13.2 13.5
Ø 12.7 35-36 N.m
(357-367 kgf.cm)
16.2 16.5
Ø 15.9 45-47 N.m
(459-480 kgf.cm)
19.2 19.7
Ø 19.1 65-67 N.m
(663-683 kgf.cm)
23.2 23.7
Ø 22 75-85 N.m
(765-867 kgf.cm)
26.4 26.9
Table 8. PIPING EXTENSION BEYOND FLARE FORM
8. Remove the flaring tool and flare form, then inspect the end of the
pipe for cracks and even flaring.
Step 4: Connect pipes
Connect the copper pipes to the indoor unit first, then connect it to the
outdoor unit. You should first connect the low-pressure pipe, then the
high- pressure pipe.
1. When connecting the flare nuts, apply a thin coat of refrigeration oil
to the flared ends of the pipes.
2. Align the center of the two pipes that you will connect.
Indoor unit tubing Flare nut Pipe
Fig. 33.
3. Tighten the flare nut as tightly as possible by hand.
4. Using a spanner, grip the nut on the unit tubing.
5. While firmly gripping the nut, use a torque wrench to tighten the
flare nut according to the torque values in table 8.

Climate 5000 SCI – 6720887405 (2018/04) 17
Wiring
NOTE :
Use both a spanner and a torque wrench when connecting or
disconnecting pipes to/from the unit.
Fig. 34.
CAUTION
•Ensure to wrap insulation around the piping. Direct contact with the
bare piping may result in burns or frostbite.
•Ensure the pipe is properly connected. Overtightening may damage
the bell mouth and undertightening may lead to leakage.
NOTE ON MINIMUM BEND RADIUS
Carefully bend the tubing in the middle according to the diagram below.
DO NOT bend the tubing more than 90° or more than 3 times.
Bend the pipe with thumb
Min. radius 100 mm
Fig. 35.
6. After connecting the copper pipes to the indoor unit, wrap the
power cable, signal cable and the piping together with binding tape.
NOTE:
DO NOT intertwine signal cable with other wires. While bundling these
items together, do not intertwine or cross the signal cable with any other
wiring.
7. Thread this pipeline through the wall and connect it to the outdoor
unit.
8. Insulate all the piping, including the valves of the outdoor unit.
9. Open the stop valves of the outdoor unit to start the flow of the
refrigerant between the indoor and outdoor unit.
CAUTION
Check to ensure there is no refrigerant leak after completing the
installation work. If there is a refrigerant leak, ventilate the area
immediately and evacuate the system (refer to the Air Evacuation
section of this manual).
8 Wiring
Safety Precautions
WARNING
•Ensure to disconnect the power supply before working on the unit.
•All electrical wiring must be done according to local and national
regulations.
•Electrical wiring must be done by qualified personnel. Improper
connections may cause electrical malfunction, injury and fire.
•An independent circuit and single outlet must be used for this unit.
DO NOT plug another appliance or charger into the same outlet. If
the electrical circuit capacity is not enough or there is a defect in the
electrical work, it can lead to shock, fire, unit and property damage.
•Connect the power cable to the terminals and fasten it with a clamp.
An insecure connection may cause fire.
•Ensure that all wiring is done correctly and the control board cover
is properly installed. Failure to do so can cause overheating at the
connection points, fire, and electrical shock.
•Ensure that the main supply connection is made through a switch
that disconnects all poles, with a contact gap of a least 3 mm.
•DO NOT modify the length of the power cord or use an extension
cord.
CAUTION
•Connect the outdoor wires before connecting the indoor wires.
•Ensure you earth the unit. The earthing wire should be away from
gas pipes, water pipes, lightning rods, telephone or other earthing
wires. Improper earthing may cause electrical shock.
•DO NOT connect the unit with the power source until all wiring and
piping is completed.
•Ensure that you do not cross your electrical wiring with your signal
wiring, as this can cause distortion and interference.
Follow these instructions to prevent distortion when the compressor
starts:
•The unit must be connected to the main outlet. Normally, the power
supply must have a low output impedance of 32 ohms.
•No other equipment should be connected to the same power circuit.
•The unit’s power information can be found on the rating sticker on
the product.
TAKE NOTE OF FUSE SPECIFICATIONS
The air conditioner’s circuit board (PCB) is designed with a fuse to
provide overcurrent protection. The specifications of the fuse are
printed on the circuit board, such as:
Indoor unit: T3.15A/250VAC, T5A/250VAC (applicable for unit with
R32 refrigerant only)
Outdoor unit: T20A/250VAC (for <24000 Btu/h unit), T30A/250VAC
(for >24000 Btu/h unit)
NOTE:
The fuse is made of ceramic.

18 Climate 5000 SCI – 6720887405 (2018/04)
Wiring
8.1 Outdoor Unit Wiring
WARNING
Before performing any electrical or wiring work, turn off the main power
to the system.
1. Prepare the cable for connection.
a. You must first choose the correct cable size before preparing the
cable for connection. Ensure to use H07RN-F cables.
Rated Current of Appliance
(A)
Nominal Cross-Sectional Area
(mm²)
≤6 0.75
6 - 10 1
10 - 16 1.5
16 - 25 2.5
25 - 32 4
32 - 45 6
Table 9. Minimum cross sectional area of power and signal cables
b. Using wire strippers, strip the rubber jacket from both ends of signal
cable to reveal about 150 mm of the wires inside.
c. Strip the insulation from the ends of the wires.
d. Using a wire crimper, crimp u-lugs on the ends of the wires.
NOTE:
While connecting the wires, please strictly follow the wiring diagram
(found inside the electrical box cover).
2. Remove the electric cover of the outdoor unit. If there is no cover
on the outdoor unit, disassemble the bolts from the maintenance
board and remove the protection board. (See Fig. 36)
Cover
Screw
Fig. 36.
3. Connect the u-lugs to the terminals.
Match the wire colours/labels with the labels on the terminal
block, and firmly screw the u-lug of each wire to its corresponding
terminal.
4. Clamp down the cable with designated cable clamp.
5. Insulate unused wires with electrical tape. Keep them away from any
electrical or metal parts.
6. Reinstall the cover of the electric control box.
8.2 Indoor Unit Wiring
1. Prepare the cable for connection
a. Using wire strippers, strip the rubber jacket from both ends of signal
cable to reveal about 150 mm of the wires inside.
b. Strip the insulation from the ends of the wires.
c. Using wire crimper, crimp the u-lugs to the ends of the wires.
2. Open the front panel of the indoor unit. Using a screwdriver, remove
the cover of the electric control box on your indoor unit.
3. Thread the power cable and the signal cable through the wire outlet.
Wire outlet
Control box
Fig. 37.
4. Connect the u-lugs to the terminals.
Match the wire colors/labels with the labels on the terminal
block, and firmly screw the u-lug of each wire to its corresponding
terminal.
Refer to the Serial Number and Wiring Diagram located on the cover
of the electric control box.
Control box
Fig. 38.
Magnetic ring (if supplied and packed with the accessories)
1 2 3
Pass the belt through the hole
of the magnetic ring to fix it on
the cable
Fig. 39.
CAUTION
•While connecting the wires, please strictly follow the wiring dia-
gram.
•The refrigerant circuit can become very hot. Keep the interconnec-
tion cable away from the copper tube.
5. Clamp down the cable with the designated cable clamp to secure it
in place. The cable should not be loose, and it should not pull on the
u-lugs.
6. Reinstall the electric box cover and the front panel of the indoor unit.

Climate 5000 SCI – 6720887405 (2018/04) 19
Wiring
8.3 Power Specifications
NOTE:
Electric auxiliary heating type circuit breaker/fuse need to add more
than 10 A.
Inverter Type A/C Power Specifications
MODEL (Btu/h) ≤18K 19K~24K 25K~36K
POWER
(indoor)
PHASE 1 phase 1 phase 1 phase
VOLT 220-240 V 220-240 V 220-240 V
CIRCUIT BREAKER/FUSE (A) 15/10 15/10 15/10
POWER
(outdoor)
PHASE 1 phase 1 phase 1 phase
VOLT 208-240 V 208-240 V 208-240 V
CIRCUIT BREAKER/FUSE (A) 25/20 25/20 40/30
MODEL (Btu/h) ≤36K 37K~60K
POWER
(indoor)
PHASE 1 phase 1 phase
VOLT 220-240 V 220-240 V
CIRCUIT BREAKER/FUSE (A) 15/10 15/10
POWER
(outdoor)
PHASE 3 phase 3 phase
VOLT 380-415 V 380-415 V
CIRCUIT BREAKER/FUSE (A) 25/20 32/25
Table 10.

20 Climate 5000 SCI – 6720887405 (2018/04)
Air Evacuation
9 Air Evacuation
Safety Precautions
CAUTION
•Use a vacuum pump with a gauge reading lower than -0.1 MPa and
an air discharge capacity above 40 L/min.
•The outdoor unit does not need vacuuming. DO NOT open the
outdoor unit’s gas and liquid stop valves.
•Ensure that the compound meter reads -0.1 MPa or below after
2hours. If the gauge reading is still above -0.1 MPa after three hours
of operation check if there is a gas leak or water inside the pipe. If
there is no leakage, perform another evacuation for 1 or 2hours.
•DO NOT use refrigerant gas to evacuate the system.
9.1 Evacuation Instructions
Before using a manifold gauge and vacuum pump, read their operation
manuals to familiarize yourself with how to use them properly.
High pressure valve
Pressure gauge
Charge hose
Vacuum pump
Low pressure valve
-76 cmHg
Low pressure valve
Charge hose
Compound gauge
Manifold gauge
Fig. 40.
1. Connect the charge hose of the manifold gauge to the service port
on the outdoor unit’s low pressure valve.
2. Connect another charge hose from the manifold gauge to the
vacuum pump.
3. Open the low pressure side of the manifold gauge. Keep the high
pressure side closed.
4. Turn on the vacuum pump to evacuate the system.
5. Run the vacuum for at least 15 minutes, or until the compound
meter reads -76 cmHG (-1x105Pa).
6. Close the low pressure side of the manifold gauge, and turn off the
vacuum pump.
7. Wait for 5 minutes, then check that there has been no change in
system pressure.
NOTE:
If there is no change in the system pressure, unscrew the cap from the
packed valve (high pressure valve). If there is a change in the system
pressure, there may be a gas leak.
8. Insert a hexagonal wrench into the packed valve (high pressure
valve) and open the valve by turning the wrench in a 1/4
counterclockwise turn. Listen for gas to exit the system, then close
the valve after 5 seconds.
Flare nut
Valve body
Valve stem
Cap
Fig. 41.
9. Watch the pressure gauge for one minute to ensure that there is no
change in pressure. The pressure gauge should read slightly higher
than atmospheric pressure.
10. Remove the charge hose from the service port.
11. Using a hexagonal wrench, fully open both the high pressure and
low pressure valves.
OPEN VALVE STEMS GENTLY
When opening valve stems, turn the hexagonal wrench until it hits
against the stopper. DO NOT try to force the valve to open further.
12. Tighten valve caps by hand, then tighten them using the proper
tool.
9.2 Note On Adding Refrigerant
CAUTION
•Refrigerant charging must be performed after wiring, vacuuming
and the leak test.
•DO NOT exceed the maximum allowable quantity of refrigerant or
overcharge the system. Doing so can damage or impact the unit’s
function.
•Charging with unsuitable substances may cause explosions or
accidents. Ensure that the appropriate refrigerant is used.
•Refrigerant containers must be opened slowly. Always use protec-
tive gear when charging the system.
•DO NOT mix refrigerant types.
•For the R32 refrigerant model, make sure the conditions within the
area have been made safe by controlling flammable material when
the refrigerant is added to the air conditioner.
Some systems require additional charging depending on pipe lengths.
The standard pipe length varies according to local regulations. The
additional refrigerant to be charged can be calculated using the following
formula: