SPLIT TYPE ROOM AIR CONDITIONER
INSTALLATION MANUAL
(PART NO. 9317265003-01)
This air conditioner uses new refrigerant HFC (R410A).
The basic installation work procedures are the same as conventional refrigerant (R22) models. However, pay careful attention to the following points:
(1)Since the working pressure is 1.6 times higher than that of conventional refrigerant (R22) models, some of the piping and installation and service tools are special.(See the table below.) Especially, when replacing a conventional refrigerant (R22) model with a new refrigerant R410A model, always replace the conventional piping and flare nuts with the R410A piping and flare nuts.
(2)Models that use refrigerant R410A have a different charging port thread diameter to prevent erroneous charging with conventional refrigerant (R22) and for safety. Therefore, check beforehand.[The charging port thread diameter for R410A is 1/2 threads per inch.]
(3)Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with refrigerant (R22) models. Also, when storing the piping ,securely seal the opening by pinching ,taping, etc.
(4)When charging the refrigerant, take into account the slight change in the composition of the gas and liquid phases, and always charge from the liquid phase side whose composition is stable.
Special tools for R410A
Tool name |
Contents of change |
|
|
|
|||
|
Pressure is high and cannot be measured with a conventional gauge.To prevent erroneous |
||||||
Gauge manifold |
mixing of other refrigerants, the diameter of each port has been changed. |
|
|||||
It is recommended the gauge with seals-0.1 to 5.3 MPa (-1 to 53 bar) for high pressure. |
|||||||
|
|||||||
|
-0.1 to 3.8 MPa (-1 to 38 bar) for low pressure. |
|
|
|
|
||
Charge hose |
To increase pressure resistance, the hose material and base size were changed. |
|
|||||
Vacuum pump |
A conventional vacuum pump can be used by installing a vacuum pump adapter. |
|
|||||
Gas leakage detector |
Special gas leakage detector for HFC refrigerant R410A. |
|
|
|
|||
Copper pipes |
|
|
|
|
|
|
|
It is necessary to use seamless copper pipes and it is desirable |
Table 1 Thicknesses of Annealed Copper Pipes |
||||||
that the amount of residual oil is less than 40 mg/10m. Do not |
|
|
|
|
|
||
|
|
Thickness (mm) |
|||||
use copper pipes having a collapsed, deformed or discolored |
|
|
|||||
Nominal |
Outer diameter |
R410A |
|
[ref.] R22 |
|||
portion (especially on the interior surface). Otherwise, the ex- |
|
||||||
diameter |
(mm) |
|
|||||
pansion value or capillary tube may become blocked with |
|
|
|
|
|
||
1/4 |
6.35 |
0.80 |
|
0.80 |
|||
contaminants. |
|
|
|||||
|
3/8 |
9.52 |
0.80 |
|
0.80 |
||
As an air conditioner using R410A incurs pressure higher than |
|
||||||
|
|
|
|
|
|||
|
|
|
|
|
|||
when using R22, it is necessary to choose adequate materials. |
|
|
|
|
|
||
Thicknesses of copper pipes used with R410A are as shown inTable1. Never use copper pipes thinner than 0.8mm even when it is available on the market.
WARNING
(1)Do not use the existing (for R22) piping and flare nuts.
•If the existing materials are used, the pressure inside the refrigerant cycle will rise and cause breakage, injury, etc.(Use the special R410A materials.)
(2)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.
CAUTION
When installing pipes shorter than 3m, sound of the outdoor unit will be transferred to the indoor unit, which will cause large operating sound or some abnormal sound.
For authorized service personnel only.
WARNING
(1)For the room air conditioner to operate satisfactory, install it as outlined in this installation manual.
(2)Connect the indoor unit and outdoor unit with the air conditioner piping and cords available standards parts. This installation manual describes the correct connections using the standard accessories and the parts specified in this installation manual.
(3)Have installation work done by authorized service personnel only.
(4)Never cut the power cord, lengthen or shorten the cord, or change the plug.
(5)Also do not use an extension cord.
(6)Plug in the power cord plug firmly. If the receptacle is loose, repair it before using the room air conditioner.
(7)Do not turn on the power until all installation work is complete.
●Be careful not to scratch the air conditioner when handling it.
●After installation, explain correct operation to the customer, using the operating manual.
●Let the customer keep this installation manual because it is used when the air conditioner is serviced or moved.
●The maximum length of the piping is 20 m. The maximum height difference of the piping is 15 m, if the units are further apart than these, correct operation can not be guaranteed.
STANDARD ACCESSORIES
The following installation accessories are supplied.
Use them as required.
Name and Shape |
Q’ty |
Name and Shape |
Q’ty |
Wall hook bracket |
|
Cloth tape |
|
|
1 |
|
1 |
Remote |
|
Tapping screw (large) |
|
control |
|
|
|
unit |
|
|
|
|
1 |
|
8 |
Battery |
|
Tapping screw (small) |
|
|
2 |
|
2 |
Remote control |
|
Air cleaning filter |
|
unit holder |
|
|
|
|
|
|
|
|
1 |
|
2 |
Drain pipe
One set of following parts are necessary in istallation of this product.
Name
Connection pipe assembly
Connection cord
Wall pipe
Decorative tape
Vinyl tape
Wall cap
Saddle
Drain hose
Tapping screws
Sealant
ELECTRICAL REQUIREMENT
Always make the air conditioner power supply a special branch circuit and provide a special switch and receptacle. Do not extend the power cord.
1
SELECTING THE MOUNTING POSITION
Decide the mounting position with the customer as follows:
1. INDOOR UNIT
(1)Install the indoor unit level on a strong wall which is not subject to vibration.
(2)The inlet and outlet ports should not be obstructed : the air should be able to blow all over the room.
(3)Install the unit near an electric outlet or special branch circuit.
(4)Do not install the unit where it will be exposed to direct sunlight.
(5)Install the unit where connection to the outdoor unit is easy.
(6)Install the unit where the drain pipe can be easily installed.
(7)Take servicing, etc. into consideration and leave the spaces shown in (Fig. 2). Also install the unit where the filter can be removed.
2. OUTDOOR UNIT
(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 flow.)
(2)Do not install the unit where a strong wind blows or where it is very dusty.
(3)Do not install the unit where people pass.
(4)Take you neighbors into consideration so that they are not disturbed by air blowing into their windows or by noise.
(5)Provide the space shown in Fig. 2 so that the air flow is not blocked.
Also for efficient operation, leave open three of the four directions front, rear, and both sides.
WARNING
Install at a place that can withstand the weight of the indoor and outdoor units and install positively so that the units will not topple or fall.
CAUTION
(1)Do not install where there is the danger of combustible gas leakage.
(2)Do not install near heat sources.
(3)If children under 10 years old may approach the unit, take preventive measures so that they cannot reach the unit.
(4)Install the indoor unit on the wall where the height from the floors more than 180 cm.
[Indoor unit piping direction]
The piping can be connected in the six directions indicated in (Fig. 1).
When the piping is connected in direction 2, 3, 4 or 5, cut along the piping groove in the side of the front cover with a hacksaw.
Fig. 1
|
(Rear) |
|
2 Right |
|
5 Left |
outlet |
|
|
|
outlet |
|
|
1 Rear outlet |
|
|
6 Left rear |
|
|
3 Bottom outlet |
|
|
4 Left bottom outlet |
|
|
|
|
|
|
outlet |
INSTALLATION DIAGRAM OF
INDOOR AND OUTDOOR UNITS
Fig. 2
[INDOOR UNIT] |
Wall hook bracket |
5 cm or over
6 cm or over
9 cm or over
150 cm or over
180 cm or over |
(Wall cap) |
|
|
||
|
Remote |
|
|
control unit |
|
|
holder |
|
Remote |
Tapping |
|
control unit |
||
screw |
||
|
||
Connection Cord |
(small) |
|
|
||
Conform toType245 IEC57 (1 or 1.5 mm2) |
|
|
[OUTDOOR UNIT] |
10 cm or over |
|
60 cm or over |
|
10 cm or over |
|
|
25 cm or |
20 cm or over |
over |
5 cm or over
|
Outdoor unit bottom |
Drain hose |
45.4 cm |
Fig. 3 |
32cm |
|
CAUTION
(1)When the outdoor temperature is 0 °C or less, do not use the accessory drain pipe and drain cap. If the drain pipe and drain cap are used, the drain water in the pipe may freeze in extremety cold weather. (Reverse cycle model only)
(2)In the area with heavy snowfall, if the intake and outlet of outdoor unit is blocked with snow, it might become difficult to get warm and it is likely to cause of the breakdown. Please construct a canopy and a pedestal or place the unit on a high stand (local configured).
FRONT PANEL REMOVAL AND INSTALLATION
INTAKE GRILLE REMOVAL |
Fig. 4 |
|
(1)Open the intake grille.
(2) |
Pull down the knob. |
Intake grille |
Intake grille |
|
(3) |
Lift the intake grille upward, until the axle at the top of the in- |
Mounting shaft |
||
|
||||
|
take grille is removed. |
Bearing |
|
|
|
|
|
||
INTAKE GRILLE INSTALLATION |
Front panel |
Knob |
||
(1)The fixing axle of the intake grille is installed on the Panel.
(2)Lay down the intake grille.
FRONT PANEL REMOVAL
(1) |
Remove intake grille (Reference the intake grille removal.) |
Front panel |
|
(2) |
Remove wire cover. |
||
|
|||
(3) |
Remove three screws. |
|
|
(4) |
The front panel is pulled to the front, raising the upper surface, |
Screws (Wire cover) |
|
|
and a front panel is removed. |
||
|
Screws (3 position) |
Wire cover
THE FRONT PANEL INSTALLATION
(1)Firstly, fit the lower part of the front panel, and insert top and bottom hooks. (Three top sides, eight bottom sides)
(2)Three screws is attached.
(3)The wire cover is attached.
(4)The intake grille is attached.
Top hole (center) |
Top holes (two sides) |
Top hooks (two sides) |
|
Top hook (center) |
|||
Indoor unit Bottom holes (two position) Bottom hooks (two position) Front panel |
|||
|
Front panel |
||
Indoor unit |
|
|
Bottom holes |
Bottom hooks |
|
(six position) |
||
(six position) |
||
|
CAUTION
Install the front panel and intake grille securely. If installation is imperfect, the front panel or intake grille may fall off and cause injury.
Be sure that the top hole of the front panel is hooked securely to the hook of the base.
CUSTOMER GUIDANCE
Explain the following to the customer in accordance with the operating manual:
(1)Starting and stopping method, operation switching, temperature adjustment, timer, air flow switching, and other remote control unit operations.
(2)Air filter removal and cleaning, and how to use the air louvers.
(3)Give the operating and installation manuals to the customer.
PUMP DOWN OPERATION (FORCED COOLING OPERATION)
To avoid discharging refrigerant into the atmosphere at the time of relocation or disposal, recover refrigerant by doing the cooling operation or forced cooling operation according to the following procedure. (When the cooling operation cannot start in winter, and so on, start the forced cooling operation.).
(1)Do the air purging of the charge hose by connecting the charging hose of gauge manifold to the charging port of 3 way valve and opening the low-pressure valve slightly.
(2)Close the valve stem of 2 way valve completely.
(3)Start the cooling operation or following forced cooling operation.
Keep on pressing the MANUAL AUTO button of the indoor unit for more than 10 seconds.
The operation indicator lamp and timer indicator lamp will begin to flash simultaneously during test run. (The forced cooling operation cannot start if the MANUAL AUTO button is not kept on pressing for more than 10 seconds.)
(4)Close the valve stem of 3 way valve when the reading on the compound pressure gage becomes 0.05~0 Mpa (0.5~0 kg/cm2).
(5)Stop the operation.
•Press the START/STOP button of the remote control unit to stop the operation.
•Press the MANUAL AUTO button when stopping the operation from indoor unit side. (It is not necessary to press on keeping for more than 10 seconds.)
CAUTION
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 refrigeration cycle that leads to breakage and even injury.
POWER
WARNING
(1) |
The rated voltage of this product is 230 V AC 50 Hz. |
(5) |
Do not extend the power cord. |
(2) Before turning on the power, check if the voltage is within the |
(6) |
Perform wiring work in accordance with standards so that the |
|
|
220 V -10 % to 240 V +10 % range. |
|
air conditioner can be operated safely and correctly. |
(3) |
Always use a special branch circuit and install a special |
(7) |
Install a leakage circuit breaker in accordance with the related |
|
receptacle to supply power to the room air conditioner. |
|
laws and regulations and electric company standards. |
(4)Use a circuit breaker and receptacle matched to the capacity of the air conditioner.
CAUTION
(1)The power source capacity must be the sum of the air conditioner current and the current of other electrical appliances. When the current contracted capacity is insufficient, change the contracted capacity.
(2)When the voltage is low and the air conditioner is difficult to start, contact the power company for increasing the voltage.
Installation instruction on the back.
Loading...