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13

English

[How to Check How Many Units are Connected]

It is possible to find out how many indoor or outdoor unit in the system are turned on by operating the push button on the PC-board (A1P) of out-
door unit (In case of multi system master unit).
Follow the procedure below to check how many indoor or outdoor units are turned on.

Note

Press the “MODE button” (BS1) if you get confused while operating.
This returns to 

Setting Mode 1 

(H1P : OFF, default).

11-2 Procedure of Adding Refrigerant charging 

and check operation

Warning

Electric Shock Warning

Make sure to close the EL. COMPO. BOX (1) (right) lid before 
turning on the power.

Do not open the EL. COMPO. BOX (2) lid or that inspection door.

Perform the setting on the PC-board (A1P) of the outdoor unit and 
check the LED display after the power is on via the inspection 
door which is in the EL. COMPO. BOX (1) (right) lid.

(Refer to figure 29)

1.

EL. COMPO. BOX (1) (right)

2.

Inspection door

3.

EL. COMPO. BOX (2) (left)

4.

Do not open the EL. COMPO. BOX (2) (left) lid or that 
inspection door.

5.

EL. COMPO. BOX (1) (right) lid

6.

LED (H1~8P)

7.

Push button (BS1~5)

8.

Lift the protruding part to open the inspection door.

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

Caution

Make sure to use the protect tool (protective groves and gog-
gles) when charging the refrigerant.

Due to a danger of liquid hammer, the refrigerant must not be 
charged over the allowable maximum amount when charging the 
refrigerant.

Do not perform the refrigerant charging operation under working 
for the BS and indoor unit.

When opening the front panel, make sure to take caution to the 
fan rotation during the working.
After the outdoor unit stops operating, the fan may keep rotation 
for a while.

Note

If operation is performed within 12 minutes after the BS, indoor 
and outdoor units are turned on, H2P will be lit on and the com-
pressor will not operate.
Check the LED display indicate as shown below.

In order to ensure uniform refrigerant distribution, it may take up to 
around 10 minutes for the compressor to start up after the unit 
starting operating. This is not a malfunction.

The refrigerant charge port is connected to the piping inside the unit.
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 the lid of the 
refrigerant charging port.
The tightening torque for the lid is 11.5 to 13.9 Nm.

See [Shutoff valve operation procedure] in chapter 11-1 for details 
on how to handle shutoff valves.

When done or when pausing the refrigerant charging operation, 
close the valve of the refrigerant tank immediately.
The refrigerant charge port of this product have electric expansion valve.
The valve will be closed at end of refrigerant charging. However 
the valve will be opened on operation after refrigerant charging 
(check operation, nomal operation, etc.).
If the tank is left with the valve open, the amount of refrigerant 
which is properly charged may be off the point.

Make sure to perform the check operation after installation. Oth-
erwise, the malfunction code “U3” will be displayed and normal 
operation cannot be performed.
And the failure of “Check of miswiring” may also cause abnormal 
operation. Performance may drop due to the failure of “Judgment 
of piping length”.

Check operation must be performed for each refrigerant piping system.
Checking is impossible if plural systems are being done at once.

The individual problems of indoor units can not be checked.
About these problems check by test run after the check operation 
is completed. (See chapter 13)

The check operation cannot be performed in recovery or other 
service modes.

(LED display: 

h

 ...OFF  

i

 ...ON  

j

 ...Blinking  

 ...Uncertain)

LED display

H1P

H2P

H3P

H4P

H5P

H6P

H7P

(1) Press the MODE button (BS1) once at 

Setting Mode 1

 (H1P : off), and set the MON-

ITOR MODE (H1P : Blinking).

j

h

h

h

h

h

h

(2) Press the SET button (BS2) the number of times until the 

LED display matches that at right.

For checking the number of 
outdoor units : eight times

j

h

h

i

h

h

h

For checking the number 
of indoor units : five times

j

h

h

h

i

h

i

(3) Press the RETURN button (BS3) and read the number of units from the display of 

H2P through H7P.
[Reading Method]
The display of H2P through H7P should be read as a binary number, with 

j

 standing 

for “1” and 

h

 standing for “0”.

j

j

h

j

h

j

j

h

(4) Press the MODE button (BS1) once. This returns to 

Setting Mode 1 

(H1P : OFF, default).

h

h

i

h

h

h

h

Ex: For the LED display at right, this would be “0 1 0 1 1 0 ”, 
which would mean 22 units are connected.

Note: “000000” indicates 64 units.

32 × 

0

 + 16 × 

1

 + 8 × 

0

 + 4 × 

1

 + 2 × 

1

 + 1 × 

0

 = 22 units

H1P H2P H3P H4P H5P H6P H7P

h

h

i

h

h

h

h

01_EN_3P201178-4B.fm  Page 13  Friday, May 18, 2007  7:58 PM

Содержание VRV III REYQ8PY1B

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 24: ...English 18 NOTES...

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