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INSTALLATION WORK

21 

Please obtain the approval of the customer when selecting the location of installation and 

installing the unit.

Selecting an installation location

21 11 

 

WARNING

Securely install the outdoor unit at a location that can withstand the weight of the unit. 

Otherwise, the outdoor unit may fall and cause injury.
Be sure to install the outdoor unit as prescribed, so that it can withstand earthquakes 

and typhoons or other strong winds. Improper installation can cause the unit to topple 

or fall, or other accidents.
Do not install the outdoor unit near the edge of a balcony. Otherwise, children may 

climb onto the outdoor unit and fall off of the balcony.

 

CAUTION

Do not install the outdoor unit in the following areas:

Area with high salt content, such as at the seaside. It will deteriorate metal parts, 

• 

causing the parts to fail or the unit to leak water.

Area filled with mineral oil or containing a large amount of splashed oil or steam, 

• 

such as a kitchen. It will deteriorate plastic parts, causing the parts to fail or the 

unit to leak water.

Area that generates substances that adversely affect the equipment, such as 

• 

sulfuric gas, chlorine gas, acid, or alkali. It will cause the copper pipes and brazed 

joints to corrode, which can cause refrigerant leakage.

Area containing equipment that generates electromagnetic interference. It will 

• 

cause the control system to malfunction, preventing the unit from operating 

normally.

Area that can cause combustible gas to leak, contains suspended carbon fibers or 

• 

flammable dust, or volatile inframmables such as paint thinner or gasoline. If gas 

leaks and settles around the unit, it can cause a fire.

Area that has heat sources, vapors, or the risk of the leakage of flammable gas in 

• 

the vicinity.

Area where small animals may live. It may cause failure, smoke or fire if small 

• 

animals enter and touch internal electrical parts.

Area where animals may urinate on the unit or ammonia may be generated.

• 

Please install the outdoor unit without slant.
Install the outdoor unit in a well-ventilated location away from rain or direct sunlight.
If the outdoor unit must be installed in an area within easy reach of the general public, 

install as necessary a protective fence or the like to prevent their access.
Install the outdoor unit in a location that would not inconvenience your neighbors, as 

they could be affected by the airflow coming out from the outlet, noise, or vibration. If it 

must be installed in proximity to your neighbors, be sure to obtain their approval.
If the outdoor unit is installed in a cold region that is affected by snow accumulation, 

snow fall, or freezing, take appropriate measures to protect it from those elements. To 

ensure a stable operation, install inlet and outlet ducts.
Install the outdoor unit in a location that is away from exhaust or the vent ports that 

discharge vapor, soot, dust, or debris.
Install the indoor unit, outdoor unit, power supply cable, connection cable, and remote 

control cable at least 1 m (40 in.) away from a television or radio receivers. The 

purpose of this is to prevent TV reception interference or radio noise. (Even if they are 

installed more than 1 m (40 in.) apart, you could still receive noise under some signal 

conditions.)

Branch switch and 

circuit breaker

Branch switch and 

circuit breaker

1 m (40 in.) or more

1 m (40 in.) or more

If children under 10 years old may approach the unit, take preventive measures so 

that they cannot reach the unit.
Keep the length of the piping of the indoor and outdoor units within the allowable 

range.
For maintenance purposes, do not bury the piping.

Drain installation

21 21 

 

CAUTION

Perform drain work in accordance with this Manual, and ensure that the drain water 

is properly drained. If the drain work is not carried out correctly, water may drip down 

from the unit, wetting the furniture.
When the outdoor temperature is 32 °F 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 extremely cold weather. (Reverse cycle model only)

Outdoor unit to be fasten with bolts at the four places indicated by the arrows without fail.

Bottom side

Drain cap mounting place

Drain pipe mounting place

Since  the  drain  water  flows  out  of  the  outdoor  unit  during  heating  operation,  install  the 

drain pipe and connect it to a commercial 16 mm hose. (Reverse cycle model only)

When installing the drain pipe, plug all the holes other than the drain pipe mounting hole 

in the bottom of the outdoor unit with putty so there is no water leakage. (Reverse cycle 

model only)

               

Drain pipe mounting hole

Base

Drain pipe

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Summary of Contents for R410A

Page 1: ...TIONER OUTDOOR UNIT PART NO 9374747115 INSTALLATION MANUAL For authorized personnel only MANUEL D INSTALLATION Pour le personnel agréé uniquement MANUAL DE INSTALACIÓN Solo para personal autorizado 9374747115_IM_En indd 1 20 12 2553 8 58 37 ...

Page 2: ...ply refrigeration compressor oil or equivalent used for the outdoor unit to the matching surfaces of the flare and union tubes before connecting them then tighten the nut with a torque wrench for a leak free connection Check carefully for leaks before starting the test run NOTE Depending on the system type liquid and gas lines may be either narrow or wide Therefore to avoid confusion the refrigera...

Page 3: ...g than with refrigerant models Also when storing the piping securely seal the openings by pinching taping etc 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 222222 Tool name Contents of change Gauge manifold Pressure is high and cannot ...

Page 4: ...of this product are shown in the table If the units are further apart than this correct operation cannot be guaranteed Total max length a b c d 70 m 230 ft 1 Max length for each indoor unit a b c or d 25 m 82 ft Max height difference between outdoor unit and each indoor unit H1 15 m 49 ft Max height difference between indoor units H2 10 m 33 ft Min length for each indoor unit a b c or d 5 m 16 ft ...

Page 5: ...the like to prevent their access Install the outdoor unit in a location that would not inconvenience your neighbors as they could be affected by the airflow coming out from the outlet noise or vibration If it must be installed in proximity to your neighbors be sure to obtain their approval If the outdoor unit is installed in a cold region that is affected by snow accumulation snow fall or freezing...

Page 6: ...ere it is very dusty 7 Do not install the unit where people pass 8 Install the outdoor unit in a place where it will be free from being dirty or getting wet by rain as much as possible 9 Install the unit where connection to the indoor unit is easy Single outdoor unit installation 333333333 When the upward area is open When there are obstacles at the back side 100 m m 4 in or m ore When there are o...

Page 7: ... a pipe cutter 2 Hold the pipe downward so that the cuttings will not enter the pipe and remove any burrs 3 Insert the flare nut always use the flare nut attached to the indoor and outdoor units respectively onto the pipe and perform the flare processing with a flare tool Leakage of refrigerant may result if other flare nuts are used 4 Protect the pipes by pinching them or with tape to prevent dus...

Page 8: ...of the specified capacity When selecting breaker please comply with the laws and the regulations of each country One breaker must be installed on the power supply of the outdoor unit Wrong selection and setup of the breaker will cause electric shock or fire Do not connect AC power supply to the transmission line terminal board Improper wiring can damage the entire system Connect the connector cord...

Page 9: ...the specified wires connect them securely and fasten them so that there is no stress placed on the terminals 4 Use an appropriate screwdriver to tighten the terminal screws Do not use a screwdriver that is too small otherwise the screw heads may be damaged and prevent the screws from being properly tightened 5 Do not tighten the terminal screws too much otherwise the screws may break 6 See the tab...

Page 10: ...p to the specified pressure all at once but do so gradually 1 Increase the pressure up to 0 5 MPa 73 psi let it sit for about 5 minutes and then check for any decrease in pressure 2 Increase the pressure up to 1 5 MPa 218 psi let it sit for about 5 minutes and then check for any decrease in pressure 3 Increase the pressure up to the specified pressure the pressure designed for the product and then...

Page 11: ...e air conditioner do not mix gas other than the specified refrigerant R410A inside the refrigerant cycle When charging the refrigerant R410A always use an electronic balance for refrigerant charging to measure the refrigerant by weight 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...

Page 12: ...val and cleaning 3 Give the operating manual and installation instruction sheet to the customer TEST RUN 888 The test run method may be different for each indoor unit that is connected Refer to the installation instruction sheet included with each indoor unit CAUTION Always turn on the power 12 hours prior to the start of the operation in order to ensure compressor protection Make a test run in ac...

Page 13: ...9374747115_IM_En indd 12 20 12 2553 8 59 06 ...

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