Sharp GU-X24SCR, GB-X24SCR, GU-X18SCR, GB-X18SCR, GU-X36SCR Installation And Operation Manual
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DUCT TYPE ROOM AIR CONDITIONER
INSTALLATION AND OPERATION MANUAL
ENGLISH
ITALIANO
INDOOR UNIT OUTDOOR UNIT
GB-X18SCR GU-X18SCR
GB-X24SCR GU-X24SCR
GB-X36SCR GU-X36SCR
Information on the Disposal of this Equipment
IF YOU WISH TO DISPOSE OF THIS EQUIPMENT, DO NOT USE THE ORDINARY
WASTE BIN, AND DO NOT PUT THEM INTO A FIREPLACE!
Used electrical and electronic equipment should always be collected and treated
SEPARATELY in accordance with local law.
Separate collection promotes an environment-friendly treatment, recycling of materials,
and minimizing final disposal of waste. IMPROPER DISPOSAL can be harmful to
human health and the environment due to certain substances! Take USED EQUIPMENT
to a local, usually municipal, collection facility, where available.
If in doubt about disposal, contact your local authorities or dealer and ask for the
correct method of disposal.
1 Safety Precautions .......................................................................................... 1
2 Outline of the Unit and Main Parts................................................................... 2
3 Preparative for Installation ............................................................................... 3
3.1 Standard Accessory Parts .......................................................................... 3
3.2 Selection of the Installation Location .......................................................... 4
3.3 Connection Pipe Requirement ................................................................... 5
3.4 Electrical Requirement ............................................................................... 6
4 Installation of the Unit ...................................................................................... 7
4.1 Installation of the Indoor Unit ...................................................................... 7
4.2 Installation of the Outdoor Unit ................................................................. 11
4.3 Installation of the Connection Pipe ........................................................... 12
4.4 Vacuum and Gas Leakage Inspection ...................................................... 16
4.5 Installation of the Drain Hose ................................................................... 17
4.6 Installation of the Duct .............................................................................. 20
4.7 Electrical Wiring ........................................................................................ 23
5 Installation of Controllers ............................................................................... 28
6 Test Running .................................................................................................. 28
6.1 Trial Operation and Testing ....................................................................... 28
6.2.Working Temperature Range .................................................................... 29
7 Unit Function ................................................................................................. 30
7.1 Setting of Double Indoor Room Sensors .................................................. 30
7.2 Checking of Outdoor Ambient Temperature ............................................. 30
7.3 Fresh Air Control ...................................................................................... 31
8 Troubleshooting and Maintenance ................................................................ 32
8.1 Troubleshooting ........................................................................................ 32
8.2 Routine Maintenance ............................................................................... 32
Contents
DC Inverter Duct Type Unit
1
1 Safety Precautions
WARNING!
This mark indicates procedures which, if improperly performed, might lead to the
death or serious injury of the user.
CAUTION!
This mark indicates procedures which, if improperly performed, might possibly
result in personal harm to the user, or damage to property.
WARNING!
(1). For operating the air conditioner pleasantly, install it as outlined in this installation manual.
(2). Connect the indoor unit and outdoor unit with the room air conditioner piping and cord available
from our standard parts. This installation manual describes the correct connections using the
installation set available from our standard parts.
(3). Installation work must be performed in accordance with national wiring standards by authorized
personnel only.
(4). If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant comes in
contact with a ame, it produces toxic gas.
(5). Do not power on until all installation work is complete.
(6). During installation, make sure that the refrigerant pipe is attached firmly before you run the
compressor.
Do not operate the compressor under the condition of refrigerant piping not attached properly with
2-way or 3-way valve open.
This may cause abnormal pressure in the refrigeration cycle that leads to breakage and even
injury.
(7). During the pump-down operation, make sure that the compressor is turned off before you remove
the refrigerant piping.
Do not remove the connection pipe while the compressor is in operation with 2-way or 3-way
valve open.
This may cause abnormal pressure in the refrigerant cycle that leads to breakage and even injury.
(8). When installing and relocating the air conditioner, do not mix gases other than the specified
refrigerant (R410A) to enter the refrigerant cycle.
If air or other gas enters the refrigerant cycle, the pressure inside the cycle will rise to an
abnormally high value and cause breakage, injury, etc.
(9). This appliance can be use by children aged fron
8 years and above and persons with reduced
physical, sensory or mental capab
ilities or lack of experience and kowledge if they have been
given supervision or instruction
concerning use of the appliance in a safe way and understand
the hazards involved.
(10).
Children shall not play with the appliance. Cleaning and user maintenance shall not be made by
children without supervision.
(11). If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or
similarly qualied persons in order to avoid a hazard.
DC Inverter Duct Type Unit
2
2 Outline of the Unit and Main Parts
Indoor
Outdoor
1. Power Cord
2. Electric Box
3. Wired Controller
4. Binding tape
5. Drain Pipe
6. Gas Pipe
7. Liquid Pipe
8. Big Handle
9. Front Board
1 2
3
4
9
Air outlet
Air outlet
Air inlet
Air inlet
Fig.1
NOTE!
① .
The connection pipe and duct for this unit should be prepared by the user.
② .
The unit is standard equipped with rectangular duct.
8 7 6
5
DC Inverter Duct Type Unit
3
3 Preparative for Installation
3.1 Standard Accessory Parts
The standard accessory parts listed below are furnished and should be used as required.
Table 1
Indoor Unit Accessories
No. Name Appearance Q'ty Usage
1 Wired Controller 1 To control the indoor unit
2 Hanger or 4 To x the indoor unit
3 Nut with Washer 8
To x the hook on the cabinet
of the unit.
4 Nut with Washer 4
To x the hook on the cabinet
of the unit.
5 Nut 4
To be used together with the
hanger bolt for installing the
unit.
6 Washer 4
To be used together with the
hanger bolt for installing the
unit.
7 Insulation 1 To insulate the gas pipe
8 Insulation 1 To insulate the liquid pipe
9 Fastener 8 To fasten the sponge
10 Nut 1 To connect liquid pipe
11 Nut 1 To connect gas pipe
DC Inverter Duct Type Unit
4
Table 2
Outdoor Unit Accessories
No. Name Appearance Q'ty Usage
1 Drain Plug 3 To plug the unused drain hole.
2 Drainage Connecter
or
1
To connect with the hard PVC
drain pipe
3.2 Selection of the Installation Location
WARNING!
The unit must be installed where strong enough to withstand the weight of the unit and xed securely,
otherwise the unit would topple or fall off.
CAUTION!
① .
Do not install where there is a danger of combustible gas leakage.
② .
Do not install the unit near heat source, steam, or ammable gas.
③ .
Children under 10 years old must be supervised not to operate the unit.
Decide the installation location with the customer as follows:
3.2.1 Indoor Unit
(1). Install the unit at a place where is strong enough to withstand the weight of the unit.
(2). The air inlet and outlet of the unit should never be clogged so that the airow can reach
every corner of the room.
(3). Leave service space around the unit as required in Fig.2.
Fig.2
(4). Install the unit where the drain pipe can be easily installed.
(5). The space from the unit to the ceiling should be kept as much as possible so as for more
convenient service.
DC Inverter Duct Type Unit
5
3.2.2 Outdoor Unit
WARNING!
① .
Install the unit where it will not be tilted by more than 5°.
② .
During installation, if the outdoor unit has to be exposed to strong wind, it must be fixed
securely.
(1). If possible, do not install the unit where it will be exposed to direct sunlight. (If necessary,
install a blind that does not interfere with the air ow.)
(2). Install the outdoor unit in a place where it will be free from getting dirty or getting wet by
rain as much as possible.
(3). Install the outdoor unit where it is convenient to connect the indoor unit.
(4). Install the outdoor unit where the condensate water can be drained out freely during
heating operation. Do not place animals and plants in the path of the warm air.
(5). Take the air conditioner weight into account and select a place where noise and vibration
are small.
(6). Install the outdoor unit where is capable of withstanding the weight of the unit and
generates as less noise and vibration as possible.
(7). Provide the space shown in Fig.3, so that the air flow is not blocked. Also for efficient
operation, leave three of four directions of peripheral constructions open.
Units: mm
＞500
＞500 ＞500
＞500
＞2000
＞2000
＞1000
Fig.3
3.3 Connection Pipe Requirement
CAUTION
!
The maximum length of the connection pipe is listed in the table below. Do not place the units between
which the distance exceeds the maximum length of the connection pipe.
DC Inverter Duct Type Unit
6
Table 3
Size of Fitting
Pipe(Inch)
Max.
Pipe
Length
(m)
Max. Height
Difference between
Indoor Unit and
Outdoor Unit (m)
Drainage
pipe(Outer
Diameter × wall
thickness) (mm)
Liquid Gas
GB-X18SCR GU-X18SCR 1/4 1/2 20 15 Φ30X1.5
GB-X24SCR GU-X24SCR 3/8 5/8 30 15 Φ20X1.2
GB-X36SCR GU-X36SCR 3/8 5/8 30 15 Φ20X1.2
① .
The connection pipe should be insulated with proper water-proof insulating material.
② .
The pipe wall thickness shall be 0.5-1.0mm and the pipe wall shall be able to withstand the
pressure of 6.0 MPa.The longer the connecting pipe, the lower the cooling and heating effect
performs.
3.4 Electrical Requirement
Electric Wire Size and Fuse Capacity.
Table 4
Indoor Units
Power Supply
Fuse Capacity Breaker Capacity
Min. Power Supply
Cord
V/Ph/Hz A A mm
2
18K~36K 220-240V~ 50Hz 5 6 1.0
Table 5
Model
Power
Supply
Capability of Air
Switch(A)
Minimum Sectional Area of Power Cable
and Earth line (mm2)
220-240V
～
50Hz
GU-X18SCR 16 1.5
GU-X24SCR 20 2.5
GU-X36SCR 25 2.5
Item
Model
DC Inverter Duct Type Unit
7
Note:
① .
The fuse is located on the main board.
② .
Install the disconnect device with a contact gap of at least 3mm in all poles nearby the units
(Both indoor unit and outdoor unit).The appliance must be positioned so that the plug is
accessible.
③ .
The specications of the breaker and power cable listed in the table above are determined
based on the maximum power (maximum amps) of the unit.
④ .
The specifications of the power cable listed in the table above are applied to the conduit-
guarded multi-wire copper cable (like, YJV copper cable, consisting of PE insulated wires and
a PVC cable jacket) used at 40°С and resistible to 90°С(see IEC 60364-5-52). If the working
condition changes, they should be modied according to the related national standard.
⑤ .
The specifications of the breaker listed in the table above are applied to the breaker with
the working temperature at 40°С. If the working condition changes, they should be modied
according to the related national standard.
⑥ .
Take 2 pieces of power cord of 0.75mm2 as the communication lines between indoor and
outdoor unit, with their longest lengths of 50m. Please select the appropriate line length as per
the actual installation conditions. The communication lines can not be twisted together. For
the unit (≤30K), it’s recommended to use 8m long communication line.
⑦ .
Take 2 pieces of power cord of 0.75mm2 as the communication lines between the wired
controller and the indoor unit, with their longest lengths of 30m. Please select the appropriate
line length as per the actual installation conditions. The communication lines can not be twisted
together. It’s recommended to use 8m long communication line.
⑧ .
The wire size of the communication line should be no less than 0.75mm2. It’s recommended to
take 0.75mm2 power cords as the communication line.
4 Installation of the Unit
4.1 Installation of the Indoor Unit
4.1.1 Indoor unit dimension
WARNING!
① .
Install the indoor unit in a location which can withstand a load of at least ve times the weight
of the main unit and which will not amplify sound or vibration.
② .
If the installation location is not strong enough, the indoor unit may fall and cause injuries.
③ .
If the job is done with the panel frame only, there is a risk that the unit will come loose. Please
take care.
DC Inverter Duct Type Unit
8
For the units: 18K
J
B
H
I
G
F
Max
Air intake
E
D
C
Max
A
For the units: 24~36K
J
I
H
G
B
F
A
E
C
D
Gas Pipe
Liquid Pipe
Drainage Pipe
Electric Box
Air Intake
Max
Max
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