Kaden KCS Series User manual

Installation
Manual
CASSETTE AIR CONDITIONER
KCS Series
KCS24 | KCS36 | KCS42 | KCS48

Kaden Installation Manual | 3
1. Safety precautions 4
2. Accessories 7
3. Installation summary 8
Unit Parts 9
4. Indoor unit installation 10
Installation instructions – Indoor unit 10
Note for new home installation 13
Note on purchasing pipes 13
Note on drainpipe installation 14
5. Outdoor unit installation 15
Installation instructions – Outdoor unit 15
Special considerations for extreme weather 15
6. Refrigerant piping connection 18
Note on pipe length 18
Connection instructions – Refrigerant piping 19
Note on minimum bend radius 21
7. Wiring 22
Note on isolator 22
Outdoor unit wiring 23
Indoor unit wiring 24
Power specifications 25
8. Leak testing and evacuation 26
Leak, pressure test and evacuation 26
Preparations and precautions 27
Opening outdoor unit valves 27
Note on adding refrigerant 27
9. Panel installation 28
10. Test run 30
Before test run 30
Test run instructions 30
11. Error codes 31
Table of contents
Important note
Read this manual carefully before installing
or operating your new air conditioning unit.
Make sure to save this manual for future reference.

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1. Safety precautions
Read safety precautions before operation and 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.
WARNINGS FOR PRODUCT USE
• Do not share the electrical outlet with other appliances. Improper or insufficient power supply can cause fire or
electrical shock.
• When connecting refrigerant piping, do not let substances or gases other than the specified refrigerant enter the unit.
• The presence of other gases or substances will lower the unit’s capacity, and can cause abnormally high pressure in the
refrigeration cycle. This can cause explosion and injury.
• Do not allow children to play with the air conditioner. Children must be supervised around the unit at all times.
• Installation must be performed by an authorised dealer or specialist. Defective installation can cause water leakage,
electrical shock, or fire.
• Installation must be performed according to the installation instructions. Improper installation can cause water leakage,
electrical shock, or fire.
• Contact an authorised service technician for repair or maintenance of this unit.
• Only use the included accessories, parts, and specified parts for installation. Using non-standard parts can cause water
leakage, electrical shock, fire, and can cause the unit to fail.
• Install the unit in a firm location that can support the unit’s weight. If the chosen location cannot support the unit’s weight,
or the installation is not done properly, the unit may drop and cause serious injury and damage.
• Only fully qualified licensed personnel should install service or carry out maintenance to this air conditioning unit.
All electrical work is to follow local and national wiring standards and the Installation Manual.
• You must use an independent circuit and single outlet to supply power. Do not connect other appliances to the
same outlet.
• Insufficient electrical capacity or defects in electrical work can cause electrical shock or fire.
• For all electrical work, use the specified cables. Connect cables tightly, and clamp them securely to prevent external forces
from damaging the terminal. Improper electrical connections can overheat and cause fire, and may also cause shock.
• All wiring must be properly arranged to ensure that the control board cover can close properly. If the control board cover is
not closed properly, it can lead to corrosion and cause the connection points on the terminal to heat up, catch fire, or cause
electrical shock.
• In certain functional environments, such as kitchens, server rooms, etc., the use of specially designed air-conditioning units
is highly recommended.
• This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or
mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use
of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning
and user maintenance shall not be made by children without supervision.
This symbol indicates the possibility of property damage or serious consequences.
This symbol indicates the possibility of personal injury or loss of life.

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CAUTION
Do not install the unit in a location that may be exposed to combustible gas leaks. If combustible gas accumulates around the
unit, it may cause fire.
Do not operate your air conditioner in a wet room such as a bathroom or laundry room. Too much exposure to water can cause
electrical components to short circuit.
1. The product must be properly grounded at the time of installation, or electrical shock may occur.
2. Install drainage piping according to the instructions in this manual. Improper drainage may cause water damage to your
home and property.
ELECTRICAL WARNINGS
• Only fully qualified licensed personnel should install, service or carry out maintenance to this air conditioning unit.
All electrical work is to follow local and national wiring standards and the Installation Manual.
• The product must be properly grounded at the time of installation, or electrical shock may occur.
• For all electrical work, follow all local and national wiring standards, regulations, and the Installation Manual. Connect cables
tightly, and clamp them securely to prevent external forces from damaging the terminal. Improper electrical connections can
overheat and cause fire, and may also cause shock. All electrical connections must be made according to the Electrical
Connection Diagram located on the panels of the indoor and outdoor units.
• All wiring must be properly arranged to ensure that the control board cover can close properly. If the control board cover is
not closed properly, it can lead to corrosion and cause the connection points on the terminal to heat up, catch fire, or cause
electrical shock.
• If connecting power to fixed wiring, an all-pole disconnection device which has at least 3mm clearances in all poles, and
has a leakage current that may exceed 10mA, the residual current device (RCD) having a rated residual operating current
not exceeding 30mA, and disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.
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, etc.
Outdoor unit: T20A/250VAC (7.0kW), T30A/250VAC (7.0kW)

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WARNINGS FOR PRODUCT INSTALLATION
• Installation must be performed by an authorised technician. Defective installation can cause water leakage, electrical shock,
or fire.
• Installation must be performed according to the installation instructions. Improper installation can cause water leakage,
electrical shock, or fire.
• Contact an authorised service technician for repair or maintenance of this unit. This appliance shall be installed in
accordance with national wiring regulations.
• Only use the included accessories, parts, and specified parts for installation. Using non-standard parts can cause water
leakage, electrical shock, fire, and can cause the unit to fail.
• Install the unit in a firm location that can support the unit’s weight. If the chosen location cannot support the unit’s weight,
or the installation is not done properly, the unit may drop and cause serious injury and damage.
• Install drainage piping according to the instructions in this manual. Improper drainage may cause water damage to your
home and property.
• For units that have an auxiliary electric heater, do not install the unit within 1 metre (3 feet) of any combustible materials.
• Do not install the unit in a location that may be exposed to combustible gas leaks. If combustible gas accumulates around
the unit, it may cause fire.
• Do not turn on the power until all work has been completed.
• When moving or relocating the air conditioner, consult authorised service technicians for disconnection and re-installation
of the unit.
• For instructions about how to install the appliance to its support, please read the information for details in “indoor unit
installation” and “outdoor unit installation” sections.
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, decommissioning, service, maintenance and repair of this unit must be performed by a licensed technician.
3. Product decommissioning and recycling must be performed by a licensed technician.
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.
6. Only ARC (Australian Refrigeration Council) license holders can install and commission this air conditioner.
This air conditioner must be installed to meet the requirements of the current version of AS/NZS 5149.
It is illegal to vent some types of refrigerant to the atmosphere.

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2. 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 of accessories Qty (pc) Shape Name of accessories Qty (pc) Shape
Owners, Installation
& Remote Controller
Manuals
3Drain joint 1
Soundproof/insulation
sheath 1Seal ring 1
Soundproof/insulation
sheath 1Copper nut 2
Outlet pipe sheath 1
Magnetic ring – wrap the
electric wires S1 & S2
(P & Q & E ) around the
magnetic ring twice
1
Drain outlet pipe 1
Magnetic ring – hitch it
on the connective cable
between indoor unit
and outdoor unit after
installation
Varies by
model
Ceiling hook 4
Suspension bolt 4

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3. Installation summary
Install the indoor unit Install the drainpipe Install the outdoor unit
Pressure test and evacuation Connect the wires Connect the refrigerant pipes
Install the front panel Perform a test run
1
6
7
2
5
8
3
4

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Unit parts
NOTE: The installation must be performed in accordance with Australian guidelines.
The installation may be slightly different in different areas.
Note on illustrations
Illustrations in this manual are for explanatory purposes. The actual shape of your indoor unit may be slightly different.
1 Air outlet
2 Air inlet
3 Front grille
4 Display panel
5 Remote controller/
wired controller
6 Drain pipe
7 Connecting pipe
8 Air inlet
9 Air outlet
1
2 34
5 6
7
8
8
9

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4. Indoor unit installation
Installation instructions – Indoor unit
NOTE: Panel installation should be performed after piping and wiring have been completed.
Step 1: Select installation location
Before installing the indoor unit, you must choose an appropriate location. The following are standards that will help you choose an
appropriate location for the unit.
Proper installation locations meet the following standards:
✓Enough room exists for installation and maintenance.
✓Enough room exists for the connecting pipe and drainpipe.
✓The ceiling is horizontal and its structure can sustain the
weight of the indoor unit.
✓The air inlet and outlet are not blocked.
✓The airflow can fill the entire room.
✓There is no direct radiation from heaters.
DO NOT install unit in the following locations:
✕Areas with oil drilling or fracking
✕Coastal areas with high salt content in the air
✕Areas with caustic gases in the air, such as hot springs
✕Areas that experience power fluctuations, such as factories
✕Enclosed spaces, such as cabinets
✕Kitchens that use natural gas
✕Areas with strong electromagnetic waves
✕Areas that store flammable materials or gas
✕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.
Distance from ceiling relative to height of indoor unit
Type Model A (mm) H (mm) B (mm)
KCS
KCS24 205 > 235
880
KCS36 245 > 275
KCS42 205 > 235
KCS48 245 > 275
Ceiling
Ceiling board
>2.5m
Front panel
Ground
A
B(Ceiling hole)

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Step 2: Hang indoor unit
Use the included paper template to cut a rectangular hole in the ceiling, leaving at least 1m of space on all sides. The cut hole size
should be 4cm larger than the body size. Be sure to mark the areas where ceiling hook holes will be drilled.
KCS24-48 models ceiling hole size
Refrigerant piping side Drain hose side
95cm (Ceiling opening)
68cm (Suspension bolt)
84cm (Body)
1m
1m
1m
1m
95cm (Ceiling opening)
78cm (Suspension bolt)
84cm (Body)

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CAUTION
The unit body should align perfectly with the hole.
Ensure that the unit and the hole are the same size
before moving on.
1. Drill 4 holes 5cm deep at the ceiling hook positions in the
internal ceiling. Be sure to hold the drill at a 90° angle
to the ceiling.
2. Using a hammer, insert the ceiling hooks into the pre-drilled
holes. Secure the bolt using the included washers and nuts.
3. Install the four suspension bolts.
4. 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.
NOTE: The bottom of the unit should be 10-18mm higher
than the ceiling board. Generally, L (indicated in the
following figure) should be half the length of the suspension
bolt or long enough to prevent the nuts from coming off.
NOTE: Ensure that the indoor unit is completely level.
The unit is equipped with a built-in drain pump and
float switch. If the unit is tilted against the direction of
condensate flows (the drainpipe side is raised), the float
switch may malfunction and cause water to leak. Improper
installation can cause the drain pipe to back up into the
unit or water leakage.
Water level
Internal ceiling
10 – 18mm or 24mmCeiling board
Main
body

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Note for new home installation
When installing the unit in a new home, the ceiling hooks
can be embedded in advance. Make sure that the hooks
do not come loose due to concrete shrinkage. After
installing the indoor unit, fasten the installation paper
template onto the unit with bolts to determine in advance
the dimension and position of the opening on the ceiling.
Follow the instructions above for the remainder of the
installation.
Step 3: Drill wall hole for connective piping
1. Determine the location of the wall hole based on the
location of the outdoor unit.
2. Using a 65mm or 90mm (depending on models) core drill,
drill a hole in the wall. Make sure that the hole is drilled at
a slight downward angle, so that the outdoor end of the
hole is lower than the indoor end by about 12mm. This will
ensure proper water drainage.
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.
CAUTION
When drilling the wall hole, make sure to avoid wires,
plumbing, and other sensitive piping or cables.
Step 4: Connect drain hose
The drainpipe is used to drain water away 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 water-level switch malfunction.
• 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.
• Do not pull the drainpipe forcefully. This could
disconnect it.
Note on purchasing pipes
Installation requires a polyethylene tube (exterior diameter
= 3.7 – 3.9cm, interior diameter = 3.2cm).
Paper pattern for
installation (on
some models)
Centre of the
ceiling opening
Bolts
Wall
Indoor
≈ 12mm
Outdoor

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Indoor drainpipe installation
Install the drainpipe as illustrated in the following figure.
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 – 1.5m.
• 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 75cm from the ceiling board and the distance
between the unit and the lift pipe must be less than
30cm. Incorrect installation could cause water to flow
back into the unit and flood.
• To prevent air bubbles, keep the drain hose level or
slightly sloping up before the riser.
NOTE: When connecting multiple drainpipes, install the pipes
as illustrated in the following figure.
Pass the drain hose through the wall hole. Make sure 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 5cm 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.
Drain hose
1 – 1.5m
Drainpipe
connecting port
Metal clamp Insulation
Downward
slope 1/100
Ceiling
≤30cm
≤53cm
22cm
≤75cm
0 – 75mm
1 – 1.5m
0 – 53cm
≥10cm

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5. Outdoor unit installation
Install the unit by following local codes and regulations. They
may differ slightly between different regions.
Installation instructions –
Outdoor unit
Step 1: Select installation location
Before installing the outdoor unit, you must choose an
appropriate location. The following are standards that will help
you choose an appropriate location for the unit.
Proper installation locations meet the following standards:
✓Meets all spatial requirements shown in installation space
requirements above.
✓Good air circulation and ventilation.
✓Firm and solid – the location can support the unit and will
not vibrate.
✓Noise from the unit will not disturb others.
✓Protected from prolonged periods of direct sunlight or rain.
✓Where snowfall is anticipated, raise the unit above the base
pad to prevent ice build-up and coil damage. Mount the
unit high enough to be above the average accumulated
area snowfall. The minimum height must be 45cm above
the base pad.
DO NOT install unit in the following locations:
✕Near an obstacle that will block air inlets and outlets.
✕Near a public street, crowded areas, or where noise from
the unit will disturb others.
✕Near animals or plants that will be harmed by
hot air discharge.
✕Near any source of combustible gas.
✕In a location that is exposed to large amounts of dust.
✕In a location exposed to a excessive amounts of salty air.
Special considerations
for extreme weather
If the unit is exposed to heavy wind:
Install unit so that air outlet fan is at a 90° angle to the
direction of the prevailing wind. If needed, build a barrier in
front of the unit to protect it from extremely heavy winds.
See figures below.
If the unit is frequently exposed to heavy rain or snow:
Build a shelter above the unit to protect it from the rain or
snow. Be careful not to obstruct air flow around the unit.
If the unit is frequently exposed to salty air (seaside):
Use outdoor unit that is specially designed to resist
corrosion.
60cm
above
30cm from
back wall
30cm
on left
60cm
on right
200cm
in front
Strong
wind
Strong
wind
Strong
wind

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Step 2: Install drain joint
Before bolting the outdoor unit in place, you must install the
drain joint at the bottom of the unit. Note that there are two
different types of drain joints depending on the type of
outdoor unit.
If the drain joint comes with a rubber seal (see Fig. 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 doesn’t come with a rubber seal
(see Fig. 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 during heating mode.
IN COLD CLIMATES
In cold climates, make sure that the drain hose is as
vertical as possible to ensure swift water drainage.
If water drains too slowly, it can freeze in the hose and
flood the unit.
Step 3: Anchor outdoor unit
The outdoor unit can be anchored to the ground or to a wall-
mounted bracket with bolt (M10). Prepare the installation base
of the unit according to the dimensions below.
Unit mounting dimensions
The following is a list of different outdoor unit sizes and the
distance between their mounting feet. Prepare the installation
base of the unit according to the dimensions below.
Outdoor unit types and specifications
Split type outdoor unit
Base pan hole
of outdoor unit
Seal
Drain joint
Seal
Fig. A Fig. B
H
H
B
D
W
W
A

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Outdoor unit dimensions
W x H x D
Mounting dimensions
Distance A Distance B
946mm x 810mm x 410mm 673mm 403mm
952mm x 1333mm x 415mm 634mm 404mm
Rows of series installation
The relationships between H, A and L are as follows.
L A
L ≤ H L ≤ 1/2H 25 cm or more
1/2H < L ≤ H 30 cm or more
L > H Can not be installed
300 cm or more
A
H
L
60 cm or more
25 cm
or more
25 cm
or more
150 cm or more

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6. Refrigerant piping connection
When connecting refrigerant piping, do not let substances or gases other than the specified refrigerant enter the unit. The presence
of other gases or substances will lower the unit’s capacity, and can cause abnormally high pressure in the refrigeration cycle.
This can cause explosion and injury.
Note on pipe length
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 the following table :
The maximum length and drop height based on models. (Unit: metres.)
Type of model Models Length of piping Maximum drop height
KCS
KSC24 50 25
KCS24 – KCS36 65 30
KCS36 – KCS48 65 30
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 10m of vertical
suction line riser.
CAUTION
If the outdoor unit is installed higher than the indoor unit:
It is recommended that vertical suction risers not be
up-sized. Proper oil return to the compressor should be
maintained with suction gas velocity. If velocities drop
below 7.62m/s, oil return will be decreased. An oil trap
should be installed every 6m of vertical suction line riser.
The outdoor unit is installed higher than the indoor unit
10m
Indoor unit
Outdoor unit
Oil trap
Gas piping
Liquid
piping
10m
The indoor unit is installed higher than the outdoor unit
6m
Outdoor unit
Indoor unit
Oil trap
Gas piping
Liquid
piping
6m

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Connection instructions –
Refrigerant piping
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.
Step 1: Cut pipes
When preparing refrigerant pipes, take extra care to cut and
flare them properly. This will ensure efficient operation and
minimise the need for future maintenance.
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.
3. Make sure that the pipe is cut at a perfect 90° angle.
DO NOT DEFORM 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.
Step 2: Remove burrs
Burrs can affect the air-tight seal of 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.
Step 3: Flare pipe ends
Proper flaring is essential to achieve an airtight seal.
1. After removing burrs from 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 can’t put them on
or change their direction after flaring.
4. Remove PVC tape from ends of pipe when ready to
perform flaring work.
5. Clamp flare form on the end of the pipe. The end of the
pipe must extend beyond the flare form.
6. Place 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.
✕ ✕ ✕✓
90° Oblique Rough Warped
Pipe
Deburrer
Point down
Copper pipe
Flare nut
Pipe
Flare form

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Piping extension beyond flare form
Pipe
gauge
Tightening torque Flare dimension (A)
(Unit: mm)
Min. Max.
Ø6.35 18 – 20 N.m
(183 – 204 kgf.cm)
8.4 8.7
Ø9.52 25 – 26 N.m
(255 – 265 kgf.cm)
13.2 13.5
Ø12.7 35 – 36 N.m
(357 – 367 kgf.cm)
16.2 16.5
Ø15.88 45 – 47 N.m
(459 – 480 kgf.cm)
19.2 19.7
Ø19 65 – 67 N.m
(663 – 683 kgf.cm)
23.2 23.7
Ø22 75 – 85 N.m
(765 – 867 kgf.cm)
26.4 26.9
Flare shape
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 centre of the two pipes that you will connect.
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 above table.
NOTE: Use both a spanner and a torque wrench when
connecting or disconnecting pipes to/from the unit.
CAUTION
• Ensure you wrap insulation around the piping. Direct
contact with the bare piping may result in burns or
frostbite.
• Make sure the pipe is properly connected. Over-
tightening may damage the bell mouth and under-
tightening may lead to leakage.
Flare nut PipeIndoor unit tubing