Nordic VRF SYSTEM Installation Manual Download Page 19

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•  Refrigerant address example

(Example) ADDRESS : 30

OPERATION 

indicator lamp 

(Green)

TIMER

indicator lamp 

(Orange)

FILTER

indicator lamp 

(Red)

9 sec

1 cycle 12 sec

ON

OFF

1.0s

1.0s

1.0s

1.0s

1.0s

1.0s

1.0s

0.5s 0.5s 0.5s 0.5s 0.5s 0.5s

ON

OFF

ON

OFF

OFF

• Setting details

Function

number

Item

Setting number

01

Indoor unit address

00~63

02

Refrigeration address

00~99

For use with a remote controller, set all rotary switches to 0, and 
refer to “7.1. Setting the address” for details.
All switches are set to 0 at the factory.

(2) Others

Indication pattern

Indicator Name

Indication pattern

OPERATION indicator 
lamp (Green)

Function number; tens place 
(0.5s ON/0.5s OFF)

TIMER indicator lamp
(Orange)

Function number; ones place 
(0.5s ON/0.5s OFF)

FILTER indicator lamp 
(Red)

Setting number: (0 - 9) 
(0.5s ON/0.5s OFF)

(Example) Function : 31, Setting number : 2

OPERATION 

indicator lamp

(Green)

TIMER

 indicator lamp 

(Orange)

FILTER

indicator lamp

(Red)

11 sec

10 sec

9 sec

1 cycle 12 sec

ON

OFF

0.5s 0.5s

0.5s

0.5s

0.5s

0.5s

0.5s

0.5s

0.5s

0.5s 0.5s 0.5s

ON

OFF

ON

OFF

8.  DECORATION PANEL INSTALLA-

TION

•  Operate according to the installation Manual DECORATION 

PANEL.

•  Be sure to con

fi

 rm there is no gap between the panel and 

main unit after installing the DECORATION PANEL.

9. TEST OPERATION

9.1. Test operation using PCB (Outdoor unit)

• Refer to the Installation Manual for the outdoor unit if 

the PCB for the outdoor unit is to be used for the test 
operation.

9.2. Test operation using Remote Controller

• Refer to the Installation Manual for the remote controller 

unit to perform the test operation using the wireless remote 
controller unit.

• When the air conditioner is being test run, the OPERATION 

and TIMER indicators 

fl

 ash slowly at the same time.

10. CHECK  LIST

Pay special attention to the check items below when 
installing the indoor unit(s). After installation is complete, be 
sure to check the following check items again.

CHECK ITEMS

If not performed 

correctly

CHECK 

BOX

Has the indoor unit been 
installed correctly?

Vibration, noise, 
indoor unit may drop

Has there been a check 
for gas leaks (refrigerant 
pipes)?

No cooling, No heating

Has heat insulation work 
been completed?

Water leakage

Does water drain easily 
from the indoor units?

Water leakage

Is the voltage of the 
power source the same 
as that indicated on the 
label on the indoor unit?

No operation, heat or 
burn damage

Are the wires and pipes 
all connected completely?

No operation, heat or 
burn damage

Is the indoor unit 
grounded?

Short circuit

Is the connection cable 
the specified thickness?

No operation, heat or 
burn damage

Are the inlets and outlets 
free of any obstacles?

No cooling, No heating

Does start and stop air 
conditioner operation by 
remote control unit or 
external device?

No operation

After installation is 
completed, has the proper 
operation and handling 
been explained to the 
user?

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9371022208-02_IM_EN.indd   19

8/31/2012   2:42:35 PM

8/31/2012   2:42:35 PM

Summary of Contents for VRF SYSTEM

Page 1: ...INSTALLATION 4 1 Selecting the pipe material 7 4 2 Pipe requirement 7 4 3 Flare connection pipe connection 7 4 4 Installing heat insulation 8 5 INSTALLING DRAIN PIPES 9 6 ELECTRICAL WIRING 6 1 Electri...

Page 2: ...cycle the pressure in the refrigeration cycle will become abnormally high and cause the piping to rupture If there is a refrigerant leakage make sure that it does not exceed the concentration limit If...

Page 3: ...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 fall or the unit...

Page 4: ...he figure Strong and durable ceiling 3 000 mm or more H 1 800 mm or more 256 mm or more AUXD18 24 298 mm or more AUXA30 36 45 54 Obstruction 1 000 mm or more Floor 1 500 mm or more H The maximum heigh...

Page 5: ...20 45 mm 20 45 mm 20 45 mm 20 45 mm 130 mm 130 mm 80 mm 699 mm Hanging bolt pitch 950 mm Panel frame 860 910 mm Ceiling opening 840 mm Body frame 200 mm 130 mm 50 mm 50 100 mm 10 mm 40 mm 140 145 mm B...

Page 6: ...of at least 490 N per bolt Hole in anchor Hole in plug Concrete Insert Hanging bolt M10 3 3 3 Body installation 1 Install the attached washer and nut prepared on site onto the hanging bolt 2 Hook the...

Page 7: ...tion Use pipe with water resistant heat insulation CAUTION Install heat insulation around both the gas and liquid pipes Failure to do so may cause water leaks Use heat insulation with heat resistance...

Page 8: ...gainst the port on the indoor unit and then turn the flare nut by hand Connection pipe Liquid Connection pipe Gas 3 When the flare nut is tightened properly by your hand hold the body side coupling wi...

Page 9: ...wnward gradient 1 100 to 1 50 850 mm or less WARNING Do not insert the drain piping into the sewer where sulfurous gas occurs Heat exchange erosion may occur Insulate the parts properly so that water...

Page 10: ...tch the terminal block numbers and connection cable colors with those of the outdoor unit Erroneous wiring may cause burning of the electric parts Securely connect the connection cables to the termina...

Page 11: ...acity Recommended cable size mm2 Cable type Remark Power supply cable 2 5 Type245 IEC57 or equivalent 1 50 Hz 198 264 V 2 Cable ground Transmission cable 0 33 LONWORKS compatible cable 22 AWG LEVEL 4...

Page 12: ...the terminal screw tightening torques 7 Please do not fix 2 power supply cables with 1 screw Strip 10 mm Sleeve Screw with special washer Screw with special washer Ring terminal Cable Cable Terminal...

Page 13: ...minal board Remote controller connecting port Cure the wiring connecting port and remote controller connecting port with paste or heat insulation so that insects or dust will not enter the unit Wiring...

Page 14: ...evice 2 Load resistance Load resistance 1 DC power supply 12 24V connected unit a a P C B CN6 b 1 Make the power supply DC12 to 24V Select a power supply capacity with an ample surplus for the connect...

Page 15: ...ggered indoor unit stops and Start Stop operation by a remote controller is restricted When forced stop function is used with forming a remote controller group connect the same equipment to each indoo...

Page 16: ...or address setting by FIELD SETTING as follows Set by either of the methods Each setting method is described 1 to 3 below 1 IU AD REF AD SW settings This section 7 1 Setting the address 2 Remote contr...

Page 17: ...Rotary Switch Setting Refrigerant circuit REF AD SW Indoor unit IU AD SW 10 1 10 1 0 0 0 0 0 0 1 0 1 1 0 1 2 0 2 2 0 2 3 0 3 3 0 3 4 0 4 4 0 4 5 0 5 5 0 5 6 0 6 6 0 6 7 0 7 7 0 7 8 0 8 8 0 8 9 0 9 9...

Page 18: ...etting 02 01 Adjust 1 02 Adjust 2 Hot air tem perature trigger 31 00 Default Adjust the hot air trigger temperature To lower the trigger temperature by 6 degrees C use setting 01 To lower the trigger...

Page 19: ...Installation Manual for the outdoor unit if the PCB for the outdoor unit is to be used for the test operation 9 2 Test operation using Remote Controller Refer to the Installation Manual for the remote...

Page 20: ...ller Error CODE Error contents OPERATION lamp green TIMER lamp orange FILTER lamp red 1 2 Remote controller communication error 1 4 Anomalous network communications 1 6 Parallel communication error 3...

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