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12. ONSITE SETTINGS

Note

In the case of a multi system, all onsite settings should be made 
on the master unit. Settings made on sub units are invalid.
The outdoor unit to which the indoor unit transmission wire are 
connected is the master unit, and all other units are sub units.

12-1 Onsite Settings With the Power Off

If the COOL/HEAT selector was 
connected to the outdoor unit in  
“7. FIELD WIRING”, set the dip 
switch (DS1) on the outdoor unit 
PC-board (A1P) to “ON” (it is set 
to “OFF” when shipped from the 
factory).
For the position of the dip switch 
(DS1), see the “Service Precau-
tions” label (see at right) which is attached to the EL. COMPO. BOX 
lid.

WARNING

ELECTRIC SHOCK WARNING

Never perform with the power on.
There is a serious risk of electric shock if any live part is touched.

12-2 Onsite Settings With the Power On

Use the push button switches (BS1 through BS5) on the outdoor unit 
PC-board (A1P) to make the necessary onsite settings.
See the “Service Precautions” label on the EL. CONPO. BOX lid for 
details on the positions and operating method of the push button 
switches and on the onsite setting.
Make sure to record the setting on the accessory “REQUEST FOR 
THE INDICATION” label.

WARNING

ELECTRIC SHOCK WARNING

Use an insulated rod to operate the push buttons via the inspection 
door of EL. COMPO. BOX lid. 
There is a risk of electric shock if you touch any live parts, since this 
operation must be performed with the power on.

13. TEST RUN

13-1 Before test run

Make sure the following works are completed in accordance with 
the installation manual.

„

Piping work

„

Wiring work

„

Air tight test

„

Vacuum drying

„

Additional refrigerant charge

Check that all work for the indoor unit are finished and there are 
no danger to operate.

13-2 Test Run

After check operation is completed, operate the unit normally and check the 
following.

(1)

Make sure the indoor and outdoor units are operating normally.

(2)

Operate each indoor unit one by one and make sure the corre-
sponding outdoor unit is also operating.

(3)

Check to see if cold (or hot) air is coming out from the indoor unit.

(4)

Push the fan direction and strength buttons on the remote control-
ler to see if they operate properly.

Note

Heating is not possible if the outdoor temperature is 24°C or 
higher. Refer to the Operation manual.

If a knocking sound can be heard in the liquid compression of the 
compressor, stop the unit immediately and then energize the 
crank case heater for a sufficient length of time before restarting 
the operation.

Once stopping, the compressor will not restart in about 5 minutes 
even if the On/Off button of the remote controller is pushed.

When the system operation is stopped by the remote controller, 
the outdoor units may continue operating for further 5 minutes at 
maximum.

The outdoor unit fan may rotate at low speeds if the Night-time low 
noise setting or the External low noise level setting is made, but 
this is not a malfunction.

13-3 Checks After Test Run

Perform the following checks after the test run is complete.

Record the contents of field setting.

Record them on the accessory “REQUEST FOR THE INDI-
CATION” label.
And attach the label on the back side of the front panel.

Record the installation date.

Record the installation date on the accessory “REQUEST 
FOR THE INDICATION” label in accordance with the 
IEC60335-2-40.
And attach the label on the back side of the front panel.

Note

After the test run, when handing the unit over to the customer, make 
sure the EL.COMPO.BOX lid, the inspection door, and the unit casing 
are all attached.

14. CAUTION FOR REFRIGERANT LEAKS

(Points to note in connection with refrigerant leaks)
Introduction
The installer and system specialist shall secure safety against 
leakage according to local regulations or standards. The following 
standards may be applicable if local regulations are not available.

The VRV System, like other air conditioning systems, uses R410A as 
refrigerant. R410A itself is an entirely safe non-toxic, non-combusti-
ble refrigerant. Nevertheless care must be taken to ensure that air 
conditioning facilities are installed in a room which is sufficiently 
large. This assures that the maximum concentration level of refriger-
ant gas is not exceeded, in the unlikely event of major leak in the sys-
tem and this in accordance to the local applicable regulations and 
standards.

Maximum concentration level

The maximum charge of refrigerant and the calculation of the maxi-
mum concentration of refrigerant is directly related to the humanly 
occupied space in to which it could leak.

The unit of measurement of the concentration is kg/m

3

 ( the weight in 

kg of the refrigerant gas in 1m

3

 volume of the occupied space).

Compliance to the local applicable regulations and standards for the 
maximum allowable concentration level is required.

In Australia the maximum allowed concentration level of refrigerant to 
a humanly space is limited to 0.35kg/m

3

 for R407C and 0.44kg/m

3

 for 

R410A.

1.

direction of the refrigerant flow

2.

room where refrigerant leak has occurred (outflow of all 
the refrigerant from the system)

Pay a special attention to the place, such as a basement, etc. 
where refrigerant can stay, since refrigerant is heavier than air.

Procedure for checking maximum concentration

Check the maximum concentration level in accordance with steps 1 
to 4 below and take whatever action is necessary to comply.

1.

Calculate the amount of refrigerant (kg) charged to each system 
separately.

Note

Where a single refrigerant facility is divided into 2 entirely inde-
pendent refrigerant systems then use the amount of refrigerant 
with which each separate system is charged.

Inspection
door

[Service Precautions] 
label

EL.COMPO.
BOX lid

amount of refriger-
ant in a single unit 
system (amount of 
refrigerant with 
which the system 
is charged before 
leaving the factory)

+

additional charging 
amount (amount of 
refrigerant added 
locally in accordance 
with the length or 
diameter of the refrig-
erant piping)

=

total amount 
of refriger-
ant (kg) in 
the system

2

1

01_EN_3P226891-13Q.fm  Page 20  Thursday, December 2, 2010  10:15 AM

Содержание VRVIII-Q Series

Страница 1: ...B RQYQ18PY1B RQYQ20PY1B RQYQ22PY1B RQYQ24PY1B RQYQ26PY1B RQYQ28PY1B RQYQ30PY1B RQYQ32PY1B RQYQ34PY1B RQYQ36PY1B RQYQ38PY1B RQYQ40PY1B RQYQ42PY1B RQYQ44PY1B RQYQ46PY1B RQYQ48PY1B English Deutsch Fran a...

Страница 2: ...00_CV_3P226891 13Q fm Page 2 Thursday December 2 2010 1 08 PM...

Страница 3: ...200 300 Pattern 3 2 1 1500 3 1 4 2 5 2 mm 1000 1 0 0 0 1000 1 5 0 0 1500 1500 figure 2 2 4 5 1 8 9 10 3 6 7 11 figure 6 1 2 4 3 figure 7 1 2 3 100 100 100 2 3 100 100 100 1 2 6 3 3 4 5 figure 14 figur...

Страница 4: ...6 7 8 ABC A F1 F2 F1 F2 Q1 Q2 B C 3 1 1 ABC I P A1P TOIN DUNIT TOOUT DUNIT TOMULTIUNIT F1 F2 F1 F2 F1 F2 1 2 3 4 5 6 A F1 F2 F1 F2 Q1 Q2 Q1 Q2 B C ABC I P A1P A1P TOIN DUNIT TOOUT DUNIT TOMULTIUNIT T...

Страница 5: ...of Q14 16 type 1 13 2 3 4 14 5 6 7 8 9 11 10 12 15 1 2 3 4 5 6 7 8 9 10 13 13 15 16 17 14 11 12 1 6 5 4 2 3 1 2 3 4 5 figure 28 1 2 3 1 5 6 7 3 4 1 2 3 4 11 12 13 14 9 15 10 10 5 6 7 8 9 figure 31 fi...

Страница 6: ...r qualified personnel to carry out installation work Do not attempt to install the air conditioner yourself Improper installation may result in water leakage electric shocks or fire Install the air co...

Страница 7: ...imum refrigerant charge of a VRVIII system must be below 100kg this to be in accordance with CE requirement EN60335 2 40 standard This means that in case the total maximum refrigerant charge of the sy...

Страница 8: ...l 3 Clamps 4 Accessory pipes Note Do not throw away any of the accessories until installation is com plete 2 3 Option accessory To install the outdoor units the following optional parts are also requi...

Страница 9: ...to prevent snow from accumu lating on the fins 3 If condensate may drip on downstairs or walkway depending on the floor condition take a measure such as the installation of central drain pan kit sold...

Страница 10: ...gen permutation or nitrogen blow when brazing Refer to figure 10 Brazing without performing nitrogen permutation or nitrogen blow into the piping will create large quantities of oxidized film on the i...

Страница 11: ...ing piping between outdoor units Refer to the installation manual that comes with the kit when doing this piping work 4 Precautions when connecting piping between outdoor units In case of multi system...

Страница 12: ...18 1 Do not install vertically Refer to figure 18 2 Maintain a straight portion of 500 mm or more until the split of the joint without wrapping any onsite piping around this area Over 500 mm of straig...

Страница 13: ...r unit 1 8 a a u r s t i i b b a a s t r u b c d e f g h i i c d e f g h j k REFNET Header REFNET Header 1 2 3 4 5 6 1 2 3 4 5 6 7 H2 b r s u t c d e f g h 1 2 3 4 5 6 7 8 8 c d e f g h 1 2 3 4 5 6 7...

Страница 14: ...920 x 15 9 19 1 22 2 28 6 34 9 41 3 19 1 25 4 28 6 34 9 54 1 9 5 12 7 15 9 19 1 12 7 15 9 19 1 22 2 Total capacity of indoor units gas pipe liquid pipe standard size max size standard size max size u...

Страница 15: ...r ing and earth terminal 7 1 Power circuit safety device and cable requirements A power circuit see the following table must be provided for con nection of the unit This circuit must be protected with...

Страница 16: ...be finished simul taneously with the local refrigerant piping and wound with tape field supply as shown in figure 25 Refer to figure 25 1 Liquid pipe 2 Gas pipe 3 Transmission wiring 4 Insulation mat...

Страница 17: ...ve A C in figure 28 should be open or closed as shown in the table below Refer to figure 28 1 Gauge manifold 2 Nitrogen 3 Measuring device 4 R410A tank with siphon 5 Vacuum pump 6 Charge hose 7 Liquid...

Страница 18: ...of a nut See 7 4 Transmission Wiring Connection Procedure 2 Make sure there is no faulty power wiring or loosing of a nut See 7 5 Power Wiring Connection Procedure 3 Has the insulation of the main pow...

Страница 19: ...3 9 12 7 8 1 9 9 18 0 22 0 15 9 13 5 16 5 Hexagonal wrench 6 mm 22 5 27 5 19 1 27 0 33 0 Hexagonal wrench 8 mm 25 4 LED display h OFF i ON j Blinking Uncertain LED display H1P H2P H3P H4P H5P H6P H7P...

Страница 20: ...med in recovery or other service modes About re charging of refrigerant When sizes and length of field pipings are certain figure out the re charging amount of refrigerant by calculation method of ref...

Страница 21: ...Perform the refrigerant charging operation according to check operation and charge the remaining refrigerant of the additional charging amount For performing the refrigerant charging opera tion the pu...

Страница 22: ...cate to open the valve of the refrigerant tank as on the right in approx 6 min after the re start Operation for re charging of refrigerant 1 60 min Contamination prevention is opearted at the same tim...

Страница 23: ...t according to the list on the installation manual 1 11 Test operate again after the repair To check operate again press the RETURN button BS3 to turn the LED back to normal indications as procedure 1...

Страница 24: ...it are reversed Exchange two of the three phases L1 L2 L3 and connect with the correct phase U3 Check operation has been completed normally Perform the check operation again U1 U4 LC Power is not bein...

Страница 25: ...hecks After Test Run Perform the following checks after the test run is complete Record the contents of field setting Record them on the accessory REQUEST FOR THE INDI CATION label And attach the labe...

Страница 26: ...results of the calcu lations in steps 1 and 2 above If the result of the above calculation exceeds the maximum con centration level then make similar calculations for the second then third smallest ro...

Страница 27: ...3P226891 13Q EM10A040 1012 HT 00_CV_3P226891 13Q fm Page 6 Thursday December 2 2010 1 08 PM...

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