INVENTOR U4MRSL(2)-14 User manual

U4MRSL(2)-14/U4MRSL(2)-18
U4MRSL(3)-21/U4MRSL(3)-27
U4MRSL(4)-28/U4MRSL(4)-36
U4MRSL(5)-42
• INSTALLATION MANUAL
• ΕΓΧΕΙΡΙΔΙΟ ΕΓΚΑΤΑΣΤΑΣΗΣ
• MANUAL DE INSTALARE
MODELS:
AIR CONDITIONING SYSTEMS
MULTI SPLIT SYSTEM

1
CONTENTS
SAFETY PRECAUTIONS
Warning ...........................................................................................................................................2
Caution ............................................................................................................................................2
INSTALLATION INSTRUCTIONS
Selecting installation place...............................................................................................................3
Wall-mounted type ...........................................................................................................................3
Accessories .........................................................................................................4
Four-way cassette type ................................................................................................................9
Duct & Ceiling type .......................................................................................................................15
Ceiling and Floor type ....................................................................................................................21
Floor and Standing type(Console)..................................................................................................24
Outdoor unit installation ................................................................................................................28
REFRIGERANT PIPE CONNECTION
Refrigerant pipe connection ..........................................................................................................29
Inside you will find many helpful hints on how to install and test the air conditioner properly.
All the illustrations and specifications in the manual are subject to change without prior notice for product
improvement. The actual shape should prevail.
Read This Manual
ELECTRICAL WORK
Electrical work .................. ...........................................................................................................30
TEST RUNNING
Test running ..................................................................................................................................37
AIR PURGING
Air purging with vacuum pump .....................................................................................................35
Safety and leakage check ............................................................................................................36
Contact an authorised service technician for repair or maintenance of this unit.
The appliance shall be installed in accordance with national wiring regulations.
This appliance is not intended for use by persons(including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concerning use of the appliance by a
person responsible for their safety.
Young children should be supervised to ensure that they do not play with the air conditioner.
Do not operate your air conditioner in a wet room such as a bathroom or laundry room.
Installation work must be performed in accordance with the national wiring standards by
authorised personnel only.
CAUTION

2
SAFETY PRECAUTIONS
WARNING
Read the follow SAFETY PRECAUTIONS carefully before installation.
Electrical work must be installed by a licensed electrician. Be sure to use the correct rating
of the power plug and main circuit for the model to be installed.
Incorrect installation due to ignoring of the instruction will cause harm or damage.
The seriousness is classified by the following indications.
This symbol indicates the possibility of death or serious injury.
The items to be followed are classified by the symbols:
Symbol with background white denotes item that is PROHIBITED from doing.
CAUTION
This symbol indicates the possibility of injury or damage to property.
WARNING
1) Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water
leakage, electrical shock or fire.
2) Install according to this installation instructions strictly. If installation is defective, it will cause water
leakage, electrical shock or fire.
3) Use the attached accessories parts and specified parts for installation. otherwise, it will cause the set to fall,
water leakage, electrical shock or fire.
4) Install at a strong and firm location which is able to withstand the set s weight. If the strength is not enough
or installation is not properly done, the set will drop and cause injury.
,
5) For electrical work, follow the local national wiring standard, regulation and this installation instructions. An
independent circuit and single outlet must be used. If electrical circuit capacity is not enough or defect found
in electrical work, it will cause electrical shock or fire.
6) Use the specified cable and connect tightly and clamp the cable so that no external force will be acted on
the terminal. If connection or fixing is not perfect, it will cause heat-up or fire at the connection.
7) Wiring routing must be properly arranged so that control board cover is fixed properly. If control board cover
is not fixed perfectly, it will cause heat-up at connection point of terminal, fire or electrical shock.
8) When carrying out piping connection, take care not to let air substances other than the specified
refrigerant go into refrigeration cycle. Otherwise, it will cause lower capacity, abnormal high pressure
in the refrigeration cycle, explosion and injury.
9) Do not modify the length of the power supply cord or use of extension cord, and do not share the
single outlet with other electrical appliances. Otherwise, it will cause fire or electrical shock.
CAUTION
1) This equipment must be earthed and installed with earth leakage current breaker. It may cause electrical
shock if grounding is not perfect.
2) Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and
accumulates at surrounding of the unit, it may cause fire.
3) Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water
may enter the room and damage the furniture.
5) Do not operate your air conditioner in a wet room such as a bathroom or laundry room.
6) An all-pole disconnection device which has at least 3mm clearances in all poles , and have 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.
4) The appliance shall be installed in accordance with national wiring regulations.

3
Selecting installation place
Read completely, then follow step by step.
Indoor unit
Do not expose the indoor unit to heat or steam.
Select a place where there are no obstacles
in front or around the unit.
Make sure that condensation drainage can
be conveniently routed away.
Do not install near a doorway.
Ensure that the space on the left and right
of the unit is more than 12cm.
Use a stud finder to locate studs to prevent unnecessary damage to the wall.
The indoor unit should be installed on the wall at a height of 2.3 metres or more from the floor.
The indoor unit should be installed allowing a minimum clearance of 15cm from the ceiling.
Any variations in pipe length will/may require adjustment to refrigerant charge.
There should not be any direct sunlight. Otherwise, the sun will fade the plastic cabinet and
affect its appearance. If unavoidable, sunlight prevention should be taken into consideration.
Outdoor unit
If an awning is built over the outdoor unit to
prevent direct sunlight or rain exposure,
make sure that heat radiation from the
condenser is not restricted.
Ensure that the clearance around the back
of the unit is more than 30cm and left side is
more than 30cm. The front of the unit should
have more than 200cm of clearance and the
connection side (right side) should have more
than 60cm of clearance.
Do not place animals and plants in the path of the air inlet or outlet.
Take the air conditioner weight into account and select a place where noise and vibration
will not be an issue.
Select a place so that the warm air and noise from the air conditioner do not disturb neighbors.
If the outdoor unit is installed on a roof structure, be sure to level the unit.
Ensure the roof structure and anchoring method are adequate for the unit location.
Consult local codes regarding rooftop mounting.
If the outdoor unit is installed on roof structures or external walls, this may result in
excessive noise and vibration, and may also be classed as a non serviceable installation.
Rooftop installation:
INSTALLATION INSTRUCTIONS
More than 30cm
More than 60cm
More than 30cm
More than 200cm
Fig.2
More than 2.3m
More than 15cm
More than 12cm
More than 12cm
Fig.1
1. Wall-mounted type

4
Accessories
INSTALLATION INSTRUCTIONS
Note: Except the above parts provided, the other parts needed during installation you must purchase.
Level gauge
Screwdriver
Electric drill,Hole core drill (φ65mm)
Flaring tool set
Specified torque wrenches: 1.8kgf.m, 4.2kgf.m,
5.5kgf.m, 6.6kgf.m(different depending on model No.)
Spanner (half union)
Hexagonal wrench (4mm)
Gas-leak detector
Tools needed for installation:
Vacuum pump
Gauge manifold
Users manual
Thermometer
Multimeter
Pipe cutter
Measuring tape
Parts you must purchase
Consult the technician
for the proper size.
6.35
9.52
9.52
12.7
15.9
62
Self-tapping Screw B ST2.9X10
Remote controller
Installation Plate
Name of Accessories
Self-tapping Screw A ST3.9X25
Seal (for cooling& heating models only)
Drain Joint
Magnetic ring
(Hitch it on the connective cable between indoor
unit and outdoor unit after installation.)
Cord protection rubber ring
(
)
If the cord clamp can not fasten the cord for the small size
of the cord, please use the cord protection rubber ring
(supplied with accessories) to wrap on the cord, then fix it
with the cord clamp.
Transfer connector(
outdoor unit, depending on models )
(NOTE: Pipe size differ from appliance to appliance.
To meet different pipe size requirement, sometimes
the pipe connections need the transfer connector
to install on the outdoor unit .)
Packed with the indoor unit or
Connecting
pipe
Assembly
Liquid side
Plastic Expansion Sheath
Number Q ty/one unit’
Gas side
7Remote controller holder 1
(for cooling& heating models only)
1
5-8
(depending on models)
5-8
(depending on models)
1
1
Optional part
(one piece/one cable)
Optional part
(one piece/one indoor unit)
Optional part
(1-5 pieces for outdoor
unit, depending on
models)
1
(on some models)
1
5
4
9
11
12
10
8
3
2
1
Optional
parts

This illustration is for explanation purposes only.
The actual shape of your air condtioner may be
slightly different.
Copper lines must be insulated independently
Use a stud finder to locate studs to prevent
unnecessary damage to the wall.
A minimum pipe run of 3 metres is required
to minimise vibration & excessive noise.
Two of the A, B and C directions should be
free from obstructions.
CAUTION
INSTALLATION INSTRUCTIONS
5
CAUTIONS
One-Two
One-Three
One-Four
One-Five
One-Six
More than 12cm
More than 12cm
More than 12cm
Air filter
Air filter
Air filter
Remote
controller
Remote
controller
Remote
controller
More than 12cm
Air filter
Remote
controller
Remote
controller
Air filter
More than
12cm
More than 15cm
More than
12cm
Air filter
Remote
controller
More than
10cm
A
BC
More than 200cm
Air out
More than 60cm
More than
30cm
More than
60cm
Loop a
connective
cable
1
2
3
4
5
6
Fig.3

6
INSTALLATION INSTRUCTIONS
Fig.4
Fig.5
Correct orientation
of Installation Plate
Indoor unit installation(wall-mounted type)
Note:
1. Fit the Installation Plate
1. Fit the installation plate horizontally
on structural parts of the wall with
spaces around the installation plate.
2. If the wall is made of brick, concrete
or the like, drill five or eight 5mm diameter
holes in the wall.Insert Clip anchor for
appropriate mounting screws.
3. Fit the installation plate on the wall
with five or eight type ?A? screws.
Fit the Installation Plate and drill holes in the
wall according to the wall structure and indoor
unit dimensions and the corresponding
mounting points on the installation plate. The
Installation Plate may be slightly different
according to the different models of indoor
unit. See Fig.5 for example.
(Dimensions are in ?mm? unless otherwise
stated.)
150mm or more to ceiling
Indoor unit outline Installation plate
H
Right rear side
refrigerant
pipe hole φ65
Left rear side
refrigerant
pipe hole φ65
120mm or
more to wall
120mm or
more to wall
W
45
R
L
45
W
W
45
H
H
Right rear side
refrigerant
pipe hole φ65
Installation plate
Indoor unit outline
Left rear side
refrigerant
pipe hole φ65
150mm or more to ceiling
120mm or
more to wall
120mm or
more to wall
Model A
Model B
Model C
45
L
L
R
R
100
100
70
100
150
100
170
170
80
180
140
260
275
83
100
85
100
110
293
150
150
150
150
100
150
150
100
150
160
150
185
105
85
205
120
92
95
100
110
110
135
275
170
170
88
95
100
163
160
186
200
140
130
90
200
115
710x250
790x265
920x292
1080x330
790x275
930x275
998x322
680x255
770x255
905x275
750x280
835x280
990x315
1186x343
900x290
1045x305
715x250
800x275
940x275
1045x315
795x270
845x286
995x295
1084x320
850x275
900x285
1015x298
850x290
Indoor
unit
dimension
mm(WxH)
L(Left) R(Right)
Mounting dimensions

7
INSTALLATION INSTRUCTIONS
1. For the left-hand and right-hand piping,
remove the pipe cover from the side panel.
2. For the rear-right-hand and rear-left-hand
piping, install the piping as shown in Fig.10.
3. Fix the end of the connective pipe. (Refer
to Tightening Connection in REFRIGERANT
PIPING CONNECTION)
Connective pipe installation
2. When connecting extension drain hose,
insulate the connecting part of extension
drain hose with a shield pipe, do not let
the drain hose slack.
Right-hand piping
Left-hand piping
Rear-right piping
Rear-left piping
Fig.8
Fig.9 Fig.10
4. Piping and wrapping
Bundle the tubing, connecting cable, and drain
hose with tape securely, evenly as shown in Fig.11.
Because the condensed water from rear of the
indoor unit is gathered in ponding box and is
piped out of room. Do not put anything else in
the box.
Indoor unit
Connective
pipe
Pipe room
Ponding box
Wrapping belt
Connective
cable
Drain hose
.
.
.
..
.
.
.
.
.
.
.
.
.
.
.
.
.
..
.
.
..
.
.
.
.
.
. .
.
Fig.11
Connect the indoor unit first, then the
outdoor unit.
Do not allow the piping to let out from
the back of the indoor unit.
Be careful not to let the drain hose slack.
Heat insulated both of the auxiliary piping.
Be sure that the drain hose is located at
the lowest side of the bundle. Locating
at the upper side can cause drain pan
to overflow inside the unit.
Never intercross nor intertwist the power
wire with any other wiring.
Run the drain hose sloped downward to
drain out the condensed water smoothly.
CAUTION
3. Connective Pipe and Drainage
Installation
1. Run the drain hose sloping downward. Do
not install the drain hose as illustrated in
Fig.7.
Drainage
Fig.7
Do not block water flow by a rise.
Do not put the end of
drain hose into water.
Wall
Indoor Outdoor
5-7mm
Fig.6
2. Drill a hole in the wall
1. Determine hole positions according to the
diagramdetailed in Fig.5. Drill one (1) hole
(φ65mm) slanting slightly to outdoor side.
2. Always use wall hole conduit when
drilling metal grid, metal plate or the like.

8
INSTALLATION INSTRUCTIONS
Fig.12
1. Pass the piping through the hole in the
wall.
2. Put the upper claw at the back of the
indoor unit on the upper hook of the
installation plate, move the indoor unit
from side to side to see that it is securely
hooked (see Fig.12).
3. Piping can easily be made by lifting the
indoor unit with a cushioning material
between the indoor unit and the wall.
Get it out after finish piping.
4. Push the lower part of the indoor unit up
on the wall, then move the indoor unit
from side to side, up and down to check
if it is hooked securely.
4. Indoor unit installation
Max. Length for all rooms
OU higher than IU
1 drive 2
30m 45m 60m 75m
20m 25m 30m 30m
10m 10m 10m 10m
15m 15m 15m 15m
10m 10m 10m 10m
1 drive 3 1 drive 4 1 drive 5
OU lower than IU
Max. Length for one indoor unit
Max. height different between
indoor and outdoor unit
Max. height different between indoor units

2. Four-way cassette type
9
INSTALLATION INSTRUCTIONS
Optional accessories
ACCESSORIES
This indoor unit requires installation of an optional
decoration panel.
Check if the following accessories are included with
your unit.
1 Remote controller
2 Batteries
3 Remote controller holder (on some models)
4 Tapping screws (M3×10mm) (on some models)
5 Installation and owner's manual
6 Paper pattern for installation (on some models)
7 Metal champ (on some models)
8 Drain hose (on some models)
9 Expansible hooks (on some models)
10 Installation hooks (on some models)
1X
1X
4X
2X
4X
1X
1X+1X
2X
1234
5678
1X1X
9 10
Ceiling height
Use installation hooks for installation.Check
whether the ceiling is strong enough to
support the weight of the indoor unit.If there is
a risk, reinforce the ceiling before installing
the unit.
Space required for installation see the figure
below ( :air flow direction)
Install this unit where the height of bottom panel
is more than 2.5m / 8.2ft so that the user cannot
easily touch.
2)
3)
Select an installation site where the following
conditions are fulfilled and that meets your
customer's approval.
- Where optimum air distribution can be ensured.
- Where nothing blocks air passage.
- Where condensate water can be properly drained.
- Where the false ceiling is not noticeably on an
incline.
- Where sufficient clearance for maintenance and
service can be ensured.
- Where there is no risk of flammable gas leaking.
- The equipment is not intended for use in a
potentially explosive atmosphere.
- Where piping between indoor and outdoor units
is possible within the allowable limit.(Refer to the
installation manual of the outdoor unit.)
- Keep indoor unit,outdoor unit,inter unit wiring and
remote controller wiring at least 1 meter away
from televisions and radios.This is to prevent
image interference and noise in those electrical
appliances.(Noise may be generated depending
on the conditions under which the electric wave
is generated,even if 1 meter is kept.)
- When installing the wireless remote controller kit,
the distance between wireless remote controller
and indoor unit might be shorter if there are
fluorescent lights who are electrically started in
the room.The indoor unit must be installed as far
as possible away from fluorescent lights.
2.1 Selecting installation site
0
When the conditions in the ceiling are exceeding 30 C
0
/ 86 F and a relative humidity of 80%, or when fresh
air is inducted into the ceiling, an additional insulation
is required (minimum 10 mm / 0.4in thickness,
polyethylene foam).
1)

10
INSTALLATION INSTRUCTIONS
1 Air inlet
2 Air outlet
Unit: mm
1 Indoor unit
2 False ceiling
1
2
24mm
1 Installation hook pitch dimensions
2 Indoor unit dimensions
3 decoration panel dimensions
4 Refrigerant piping
5 Installation hook (×4)
6 Ceiling opening dimensions
7 Hanger bracket
8 False ceiling
Adjust the position to ensure the gaps between
the indoor unit and the four sides of false
ceiling are even. The indoor unit's lower part
should sink into the false ceiling for 24mm/0.95in.
2.2 Preparations before installation
Relation of ceiling opening to unit and
installation hook position.
1)
Unit: mm
Fig.17
Fig.16
Fig.15
Fig.14
Fig.13
1000/39.37in
1000/39.37in
1000/39.37in
1000/39.37in
22
1
1000/39.37in
1000/39.37in
2500/98.43in
260/10.24in
290/11.4in
1
1
2
2
3
3
545/21.45in
523/20.59in
570/22.44in
570/22.44in
647/25.47in
647/25.47in
45
70/2.76in
15/0.59in 15/0.59in600/23.62in6
7
8
20/0.79in 20/0.79in
0.95in

11
INSTALLATION INSTRUCTIONS
Installation is possible with a ceiling dimension
of 600 mm / 23.62in(marked with * ) . However,
to achieve a ceiling-panel overlapping dimension
of 15 mm / 0.59in, the spacing between the
ceiling and the unit should be 20 mm / 0.79in
or less.If the spacing between ceiling and the
unit is over 20 mm / 0.79in, attach sealing
material in the part or recover the ceiling.
NOTE:
- Create the ceiling opening required for installation.
From the side of the opening to the casing outlet,
implement the refrigerant and drain piping and
wiring for remote controller (unnecessary for
wireless type). Refer to each piping or wiring
section.
- After making an opening in the ceiling, it may be
necessary to reinforce ceiling beams to keep the
ceiling level and to prevent it from vibrating.
Consult the builder for details.
Use expansible hooks, sunken anchors or other field
supplied parts to reinforce the ceiling in order to bear
the weight of the unit. Adjust clearance from the
ceiling before proceeding further. Installation
example see figure below.
2) Make the ceiling opening needed for
installation where applicable. (For existing
ceilings.)
3) Install the installation hooks. (Use either a
M8 or M10 size bolt. )
1 Ceiling slab
2 Expansible hook (optional)
3 Installation hook (optional)
4 False ceiling
installation, contact your dealer for details.
For other installation than standard NOTE
30~35mm
1
2
3
4
- Attach the hanger bracket to the suspension bolt.
Be sure to fix it securely by using a nut and
washer from the upper and lower sides of the
hanger bracket.
- Securing the hanger bracket see figure below.
2) Fix the paper pattern for installation. (For new
ceilings only)
1) Install the indoor unit temporarily.
1 Nut (field supply)
2 Washer (field supply)
3 Hanger bracket
4 Double nuts (field supply, tighten)
2.3 Indoor unit installation
When installing optional accessories, read also the
installation manual of the optional accessories.
Depending on the field conditions, it may be easier to
install optional accessories before the indoor unit is
installed (except for the decoration panel).However,
for existing ceiling, install fresh air inlet component kit
and branch duct before installing the unit.
- The paper pattern for installation corresponds
with the measurements of the ceiling opening.
Consult the builder for details.
- The centre of the ceiling opening is indicated on
the paper pattern for installation.
- After removing the packaging material from the
paper patten for installation, attach the paper
pattern for installation to the unit with the
attached screws as shown in figure below.
1
2
3
4
Fig.19
Fig.18
1.18~1.38in

12
INSTALLATION INSTRUCTIONS
3) Adjust the unit to the right position for
installation.
(Refer to the chapter "Preparations before installation"
on page 10.)
1 Paper pattern for installation (on some models)
2 Center of the ceiling opening
3 Screws (supplied with the decoration panel)
1
2
3
- Do not install the unit tilted. The indoor unit is
equipped with a built-in drain pump and float switch.
(If the unit is tilted against the direction of the
condensate flow (the drain piping side is raised),
the float switch may malfunction and cause water
to drip.)
- Check if the unit is levelled at all four corners with
a water level or a water-filled vinyl tube as shown
in figure below.
4) Check if the unit is horizontally levelled.
1 Water level
2 Vinyl tube
5) Remove the paper pattern for installation. (For
new ceiling only).
11
22
2.4 DRAIN PIPING WORK
Installation of drain piping
Install the drain piping as shown in figure below and
take measures against condensation. Improperly
rigged piping could lead to leaks and eventually wet
furniture and belongings.
- Keep piping as short as possible and slope it
downwards at a gradient of at least 1/100 so
that air may not remain trapped inside the pipe.
- Keep pipe size equal to or greater than that of
the connecting pipe (PVC pipe, nominal
diameter 20mm /0.79in in, outside diameter
25mm/0.98in).
- Push the drain hose as far as possible over the
drain socket, and tighten the metal clamp
securely.
- If the drain hose cannot be sufficiently set on a
slope, fit the hose with drain raising piping (field
supply).
- Make sure that heat insulation work is executed
on the following 2 spots to prevent any possible
water leakage due to dew condensation.
1 Indoor drain pipe.
2 Drain socket.
- Insulate the drain hose inside the building.
1 Hanging bar
2 ≥1/100 gradient
1 Drain socket (attached to the unit)
2 metal clamp
3 Drain hose
4 Insulation (field supply)
1 2 3
√
×
Install the drain pipes.
4
Fig.23
Fig.22
Fig.21
Fig.20
1-1.5m 1
2
3~5ft

13
INSTALLATION INSTRUCTIONS
- Connect the drain hose to the drain raising pipes,
and insulate them.
- Connect the drain hose to the drain outlet on the
indoor unit, and tighten it with the clamp.
How to perform piping
Precautions
than 530 mm/20.87in.
- Install the drain raising pipes at a right angle to
the indoor unit and no more than 300 mm/11.8in
from the unit.
- To prevent air bubbles, install the drain hose
level or slightly tilted up (<75 mm/2.95in).
- The incline of drain hose should be 75 mm/2.95in
or less so that the drain socket does not have to
withstand additional force.
- To ensure a downward slope of 1:100, install
hanging bars every 1m/3.28ft to 1.5 m/4.92ft.
- When unifying multiple drain pipes, install the
pipes as shown in figure below. Select
converging drain pipes whose gauge is suitable
for the operating capacity of the unit.
- Install the drain raising pipes at a height of less
1 Ceiling slab
2 Hanger bracket
3 Adjustable range
4 Drain raising pipe
5 Drain hose
6 Metal clamp
1 T-joint converging drain pipes
0-530/20.87 in
100
1
1
Drain piping connections
Do not connect the drain piping directly to
sewage pipes that smell of ammonia. The
ammonia in the sewage might enter the
indoor unit through the drain pipes and
corrode the heat exchanger.
Keep in mind that it will become the cause
of getting drain pipe blocked if water
collects on drain pipe.
Unit: mm
Unit: mm
Add approximately 1L of water gradually through
the air discharge outlet.
Method of adding water (see the figure below)
Testing of drain piping
After the piping work is finished, check if drainage
flows smoothy.
1 Plastic watering can(tube should be about 100 mm long)
2 Water-receiver
/3.93in
When exlectric wiring work is finished, check
drainage flow during COOL running.
Unit: mm
1
2
Fig.25
Fig.24
Fig.26
1
2
0~75
5
1~1.5m
≤300/11.8in
654
3
220/8.7in
≤750/29.5in
0~2.95in
≤530/21in
3~5ft
1 2
≥100/3.93in
Fresh air intake (φ65/2.56in)
106/4.17in
106/4.17in
75/2.95in
65/2.56in
3.93 in

14
INSTALLATION INSTRUCTIONS
2.5 INSTALLATION OF THE DECORATION
PANEL
Detach the intake grille.
-
decoration panel.
Slide the 2 grille hooks toward the middle of the
- Open the intake grille and remove.
Install the paneldecoration
- Attach the decoration panel to the unit with the
supplied screws as shown in figure below.
1 Decoration panel
2 Screws (M5)(supplied with the panel)
- After installing the decoration panel, ensure that
there is no space between the unit body and
decoration panel.
Otherwise air may leak through the gap and
cause dewdrop.
Mount the intake grille.
Ensure that the buckles at the back of the grille
be properly seated in the groove of the panel.
1
2×√
1
2
1 Intake grille
2 Grille hook
Close the intake grille, and close the 2 grille
hooks.
Fig.33
Fig.32
Fig.31
Fig.30
Fig.29
Fig.28
Fig.27

15
INSTALLATION INSTRUCTIONS
3. Duct & Ceiling type
Installation precautions
1. Determine the moving route.
2. Move the unit in original state.
3. Make sure to do electric insulation according to relevant electric standard
in case the unit is installed on metal part of building.
Indoor unit installation
Refrigerant
pipe
Air outlet
Air return box
Direction A
<500mm
Duct
> 1 0 0 m m >200mm
> 2 5 0 m m
< 3 m
< 1 0 0 0 m m
4. Please keep away from the following places, or malfunction may be caused.
(if unavoidable, please consult the professionals):
A. There is mineral oil like the oil of cutting machine.
B. There is much salty air. (Near the coast)
C. There is caustic gas such as sulfuric gas. (Near the hotspring.)
D. Factory where the voltage fluctuate greatly.
E. In the car or in the cabin.
F. In the kitchen or a place full of oil steam..
G. There is strong electromagnetic wave.
H. There is combustible gas or materials.
I. There is much evaporating acid or alkaline gas.
J. Other special areas.
Enough room for installation and maintenance.
The ceiling is horizontal and it can afford the weight of the indoor unit.
The air inlet and outlet are not impeded and does not affected by outdoor air too much.
The air flow can reach every part of the room.
The connecting pipe and drainpipe can be easily extracted out.
There is no direct radiation from heat source.
Installation location
Air return box
Air return box
Air outlet
<500mm
Direction A
Function
Insulation pipe
Remote controller
Big washer
Constriction bandage
Water outlet joint (for cool/heat type only)
Name Qty.NO Outline
1
2
3
4
5
6
7
8
2
1
8
Pipe joint heat insulation
Overhang indoor unit
Binding insulation pipe
Remote control air conditioner
9
10
Gasket (for cool/heat type only)
Copper nut
10
1
1
2
Connecting pipe
Outdoor unit drainage
Drain hose 1
Indoor unit drainage
Outdoor unit drainage
7# Alkaline battery
Remote signal receiver subassembly
1
1
Accessories
Magnetic ring
11
1

16
INSTALLATION INSTRUCTIONS
Determine the location of hanging screw bolt following Fig.40.
Fig.34
Fig.35
Fig.37
Fig.36
Installation of unit
Install φ10 (4 pieces)hanging screw bolt
Make sure to use the hanging screw bolt of φ10.
The treatment to the ceiling varies from construction; please consult the professionals for details.
1) Treatment to ceiling---make sure to consolidate the roof beam for possible vibration to keep the ceiling horizontal.
2) Please cut off the roof beam.
3) Reinforce the place that is cut off and consolidate the roof beam.
Carry out connection of piping and wiring inside the ceiling.
Determine the piping direction. Especially in the case of existing ceiling, please pull the wire to the connection place before
overhanging the unit.
Install the hanging bolt in following different situation:
Timber over the beam
(Blade shape
insertion)
(Slide insertion)
Install with insertion or embedding screw.
Wooden structure
New concrete bricks
Put a timber across the beams and install
the bolts.
Hanging screw bolts
Ceiling
Roof beam
Steel bar
(Pipe hanging
and embedding
screw bolt)
Original concrete bricks
Install the hanging hook with expansible
bolt into the concrete.
Steel roof beam structre
Install the supporting angle steel.
Hanging screw bolt
Hanging bolts Supporting angl steele
Overhang the unit
Fig.38
Hanging screw bolt
Nut (upside)
Installation ear
Nut (underside)
Washer (upside)
Washer (underside)
Install the hanging screw bolt to the
U-shaped slot of installation ear.
Overhang the indoor unit and measure
the level degree of unit with a gradienter.
Fasten the nut
Gradienter
Fig.39
Fasten and fix the upside nut.

17
INSTALLATION INSTRUCTIONS
17
Dimension and air outlet size
Air inlet size
Position size of descensional ventilation opening
Size of mounted hook
Fig.40
Electric control box
Electric control box
Air filter
Air filter
The position of hanging bolts

17
INSTALLATION INSTRUCTIONS
18
Air return flange
Side rail
Seal sponge
Dentilation panel
1. Take off ventilation panel and flange, cut off the staples at
side rail.
2. Stick the attached seal sponge as per the indicating place in
the following fig, and then change the mounting positions of
air return panel and air return flange .
3. When install the filter mesh, please plug it into flange inclined
from air return opening, and then push up.
4. The installation has finish, upon filter mesh which fixing
blocks have been insert to the flange positional holes.
920
920
210
270
635
635
570
570
65
65
713
713
35
35
119
179
815
815
200
260
80
20
960
960
350
350
A B CD E F GH I J K L M
18000Btu/h
>24000Btu/h
All the figures in this manual are for explanation purpose only. They may be slightly different from the air
conditioner you purchased.The actual unit shall prevail.
700 210 635 570 65 493 35 119 595 200 80 740 350
Outline dimension Air outlet opening size
Air return opening size
Size of
mounted lug
How to adjust the air inlet direction?(From rear side to under-side.)
Fig.41
NOTE
<12000Btu/h

19
INSTALLATION INSTRUCTIONS
Drainpipe installation
Piping, insulation material
Drainage
Heat insulation
Piping
Insulation material
Hard PVC pipe
Cellular polyethylene, thicker than 6mm
Please do heat insulation on piping joint.
Bind the contact insulation part between the
unit and installation location with bandage.
1. Indoor unit drainpipe installation
Fig.42
Fig.43
Hard PVC pipe
Heat insulation
material
Heat insulation
material
No space
Main unit
Seal the
insulation material
See Fig.42