background image

En-10

Remove the blank caps, and fully open the spindles of the 2-way and 3-way 

(12) 

valves with a hexagon wrench. 

[torque : 6 to 7 N·m (53 to 62 lbf·in)].

Tighten the blank caps and charging port cap of the 2-way valve and 3-way valve 

(13) 

to the specified torque. 

Tightening torque [N·m (lbf·in1)]

Blank cap

6.35 (1/4)

20 to 25 (177 to 221)

9.52 (3/8)

20 to 25 (177 to 221)

12.70 (1/2)

28 to 32 (248 to 283)

15.88 (5/8)

30 to 35 (266 to 310)

19.05 (3/4)

35 to 40 (310 to 354)

Charging port cap [N·m (lbf·in1)]

10 to 12 (89 to 106)

Blank cap

Cap

Charging port

Spindle

Hexagon wrench

Service hose
with valve core

Service hose
with valve core

Service hose
with valve core

Service hose
with valve core

Gauge manifold

Service hose

Vacuum pump

Lo

Hi

 

 

CAUTION

Do not purge the air with refrigerants, but use a vacuum pump to vacuum the 

installation! There is no extra refrigerant in the outdoor unit for air purging!
Use a vacuum pump and gauge manifold and charging hose for R410A exclusively. 

Using the same vacuum for different refrigerants may damage the vacuum pump or 

the unit.

Additional charging

61 21 

Refrigerant suitable for a total piping length of 164 ft is charged in the outdoor unit at the 

factory.

When the piping is longer than 164 ft, additional charging is necessary.

For the additional amount, see the table below.

Total piping 

length [m (ft)]

50 (164)

60 (197)

70 (230)

Additional 

refrigerant

None

250 g

(8.8 oz)

500 g

(17.6 oz)

25 g/m

(0.27 oz/ft)

 

CAUTION

When moving and installing the 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 composition is stable.

Gas

Liquid

R410A

Add refrigerant from the charging valve after the completion of the work.
If the units are further apart than the maximum pipe length, correct operation cannot 

be guaranteed.

POWER

71 

 

WARNING

The rated voltage of this product is 208/230 V A.C. 60 Hz.
Before turning on verify that the voltage is within the 187 V to 253 V range.
Always use a special branch circuit and install a special receptacle to supply power to 

the air conditioner.
Use a special branch circuit breaker and receptacle matched to the capacity of the air 

conditioner. (Install in accordance with standard.)
Perform wiring work in accordance with standards so that the air conditioner can be 

operated safely and positively.
Install a leakage special branch circuit breaker in accordance with the related laws 

and regulations and electric company standards.

 

CAUTION

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 insuf-

ficient, change the contracted capacity.
When the voltage is low and the air conditioner is difficult to start, contact the power 

company the voltage raised.

9374747115_IM_En.indd   10

20/12/2553   8:58:52

Содержание R410A

Страница 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 ...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Отзывы: