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17

English

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.

2.

Calculate the smallest room volume (m

)

Incase like the following, calculate the volume of (A), (B) as a sin-
gle room or as the smallest room.

A.

Where there are no smaller room divisions

B.

Where there is a room division but there is an opening 

between the rooms sufficiently large to permit a free flow of 
air back and forth.

1.

opening between rooms

2.

partition 

(Where there is an opening without a door or where there are open-
ings above and below the door which are each equivalent in size to 
0.15% or more of the floor area.)

3.

Calculating the refrigerant density using the 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 room and so until the result falls short of the maxi-
mum concentration.

4.

Dealing with the situations where the result exceeds the maxi-
mum concentration level.
Where the installation of a facility results in a concentration in 
excess of the maximum concentration level then it will be neces-
sary to revise the system. Please consult your Daikin supplier.

NOTES

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

total volume of refrigerant in the 
refrigerant system

maximum concen-
tration level (kg/m

3

)

size (m

) of smallest room in which 

there is an indoor unit installed

1

2

01_EN_3P201178-4B.fm  Page 17  Friday, May 18, 2007  7:58 PM

Summary of Contents for VRV III REYQ8PY1B

Page 1: ...ir conditioner Installationsanleitung VRVIII System Klimaanlage Manuel d installation Conditionneur d air VRVIII System Manual de instalaci n Sistema de acondicionador de aire VRVIII Manuale di instal...

Page 2: ...Q32PY1 E RXYQ34PY1 E RXYQ36PY1 E RXYQ38PY1 E RXYQ40PY1 E RXYQ42PY1 E RXYQ44PY1 E RXYQ46PY1 E RXYQ48PY1 E RXYQ50PY1 E RXYQ52PY1 E RXYQ54PY1 E REYQ8PY1 REYQ10PY1 REYQ12PY1 REYQ14PY1 REYQ16PY1 REYQ18PY1...

Page 3: ...nit Pattern 1 Pattern 2 Pattern 1 Pattern 2 Pattern 3 When installed in serial 1 4 3 4 3 4 3 4 3 1 2 1 1 1 200 300 Pattern 3 2 1 figure 6 1 2 1 2 3 figure 7 1300 1162 1 4 3 2 765 729 631 765 1 2 3 fig...

Page 4: ...OOUT DUNIT F1 F2 F1 F2 1 2 3 4 A1P TOIN DUNIT F1 F2 F1 F2 TOOUT DUNIT F1 F2 F1 F2 6 7 TOIN DUNIT F1 F2 F1 F2 TOOUT DUNIT F1 F2 F1 F2 6 7 5 F1 F2 F1 F2 8 1 2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 1 A1P 2 figur...

Page 5: ...9 10 13 14 15 11 12 18 19 16 17 1 2 1 3 2 figure 25 1 2 3 10 11 12 4 5 6 7 8 9 13 14 15 16 3 11 12 10 4 5 6 7 9 8 13 14 15 16 1 2 figure 29 figure 30 1 2 3 4 figure 32 1 2 3 4 5 figure 28 figure 24 3...

Page 6: ...3P201178 4B EM07A013 0705 HT...

Page 7: ...ge Excessive refrigerant in a closed ambient can lead to oxygen defi ciency Contact your dealer for more information Be sure to use only the specified accessories and parts for instal lation work Fail...

Page 8: ...ur multiple outdoor system into smaller independent systems each containing less than 100kg refrigerant charge For factory charge refer to the unit name plate Important information regarding the refri...

Page 9: ...igerant piping when installing the units If the work conditions in figure 2 do not apply contact your dealer or Daikin directly Refer to figure 2 1 Front side 2 No limit to wall height 3 Service space...

Page 10: ...rooves around the foundation Drain water is sometimes discharged from the outdoor unit when it is running For anti corrosion type use nuts with resin washers If the paint on nut connections comes off...

Page 11: ...ass remove the pinch piping Any gas remaining inside may blow off the pinch piping when you dis solve the brazing causing damage Refer to figure 12 1 Pich piping 4 pieces 2 Do not remove the relay pip...

Page 12: ...pipe length between outdoor unit 2 and indoor unit 190m Note 1 Assume eqivalent pipe length of REFNET joint to be 0 5m that of REFNET header to be 1m that of BSVQ100 160 to be 4m that of BSVQ250 to b...

Page 13: ...es KHRP26M22H or KHRP26M33H KHRP26M33H KHRP26M72H KHRP26M73H KHRP26M73HP Refrigerant branch kit name Example for indoor units connected downstream Example REFNET joint C Indoor units 5 6 7 8 Example R...

Page 14: ...37 0 18 0 059 0 26 0 12 0 022 1 02 HEAT RECOVER SYSTEM MODEL NAME THE AMOUNT OF REFRIGERANT REYQ8 16PY1 REYQ18 20PY1 REYQ22 24PY1 REYQ26PY1 REYQ28 30PY1 REYQ32 40PY1 REYQ42PY1 REYQ44 46PY1 REYQ48PY1 3...

Page 15: ...If there exists the possibility of reversed phase lose phase momentary blackout or the power goes on and off while the prod uct is operating attach a reversed phase protection circuit locally Running...

Page 16: ...3 and N phases of the power wiring should be secured separately to the hook using the included clamp 1 The ground wiring should be bound to the power wiring using the included clamp 1 to prevent outsi...

Page 17: ...moisture might enter the piping follow belows I e if doing work during the rainy season if the actual work takes long enough that condensation may form on the inside of the pipes if rain might enter...

Page 18: ...compressor leading insulation degradation Be sure to use the correct tools The shutoff valve is not a back seat type If forced it to open it might break the valve body When using a service port use th...

Page 19: ...When the unit is shipped from the factory the unit s internal piping is already charged with refrigerant so be careful when connecting the charge hose After adding the refrigerant make sure to close t...

Page 20: ...rigerant flow when charging 15 Shutoff valve 16 Service port Automatic refirgerant charging operation procedure Note The marks of LED mean as follows h OFF i ON j Blinking OFF ON or Brinking 1 Open th...

Page 21: ...herwise malfunction code U3 will be displayed in the remote controller and nomal operation can not be carried out Check of shutoff valve opening Check of miswiring Judgment of piping length Check of r...

Page 22: ...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 i...

Page 23: ...size to 0 15 or more of the floor area 3 Calculating the refrigerant density using the results of the calcu lations in steps 1 and 2 above If the result of the above calculation exceeds the maximum c...

Page 24: ...English 18 NOTES...

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