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• 

Make sure that a separate power supply circuit is provided 

for this unit and that all electrical work is carried out by 

qualified personnel according to local, state, and national 

regulations. An insufficient power supply capacity or 

improper electrical construction may lead to electric shock 

or fire.

•  Make sure that all wiring is secured, that specified wires 

are used, and that no external forces act on the terminal 

connections or wires. Improper connections or installation 

may result in fire.

• 

When wiring, position the wires so that the electrical 

wiring box cover can be securely fastened. Improper 

positioning of the electrical wiring box cover may result in 

electric shock, fire, or the terminals overheating.

• 

Before touching electrical parts, turn off the unit.

• 

It is recommended to install a ground fault circuit 

interrupter if one is not already available. This helps 

prevent electric shock or fire.

• 

Securely fasten the outdoor unit terminal cover (panel). If the 

terminal cover/panel is not installed properly, dust or water 

may enter the outdoor unit causing fire or electric shock.

• 

When installing or relocating the system, keep the refrigerant 

circuit free from substances other than the specified 

refrigerant (R410A) such as air. Any presence of air or other 

foreign substance in the refrigerant circuit can cause an 

abnormal pressure rise or rupture, resulting in injury.

• 

Do not change the setting of the protection devices. If the 

pressure switch, thermal switch, or other protection device 

is shorted and operated forcibly, or parts other than those 

specified by Daikin are used, fire or explosion may occur.

CAUTION 

•  Do not touch the switch with wet fingers. Touching a switch 

with wet fingers can cause electric shock.

• 

Do not allow children to play on or around the unit to 

prevent injury.

•  The heat exchanger fins are sharp enough to cut. To avoid 

injury wear gloves or cover the fins while working around 

them.

• 

Do not touch the refrigerant pipes during and immediately 

after operation as the refrigerant pipes may be hot or 

cold, depending on the condition of the refrigerant flowing 

through the refrigerant piping, compressor, and other 

refrigerant cycle parts. Your hands may suffer burns or 

frostbite if you touch the refrigerant pipes. To avoid injury, 

give the pipes time to return to normal temperature or, if 

you must touch them, be sure to wear proper gloves.

• 

Install drain piping to proper drainage. Improper drain 

piping may result in water leakage and property damage.

• 

Insulate piping to prevent condensation.

• 

Be careful when transporting the product.

• 

Do not turn off the power immediately after stopping 

operation. Always wait for at least 5 minutes before turning 

off the power. Otherwise, water leakage may occur.

• 

Do not use a charging cylinder. Using a charging cylinder 

may cause the refrigerant to deteriorate.

• 

Refrigerant R410A in the system must be kept clean, dry, 

and tight. 

 

(a)  Clean and Dry -- Foreign materials (including mineral 

oils such as SUNISO oil or moisture) should be 

prevented from getting into the system.

(b)  Tight -- R410A does not contain any chlorine, does not 

destroy the ozone layer, and does not reduce the earth’s 

protection again harmful ultraviolet radiation. R410A 

can contribute to the greenhouse effect if it is released. 

Therefore take proper measures to check for the tightness 

of the refrigerant piping installation. Read the chapter 

Refrigerant Piping Work

 and follow the procedures.

• 

Since R410A is a blend, the required additional refrigerant 

must be charged in its liquid state. If the refrigerant is 

charged in a state of gas, its composition can change and 

the system will not work properly.

• 

The indoor unit is for R410A. See the catalog for indoor 

models that can be connected. Normal operation is not 

possible when connected to other units.

• 

Remote controller (wireless kit) transmitting distance can be 

shorter than expected in rooms with electronic fluorescent 

lamps (inverter or rapid start types). Install the indoor unit 

far away from fluorescent lamps as much as possible.

• 

Indoor units are for indoor installation only. Outdoor units can be 

installed either outdoors or indoors. This unit is for indoor use.

• 

Do not install the air conditioner or heat pump in the 

following locations:

(a)  Where a mineral oil mist or oil spray or vapor is 

produced, for example, in a kitchen.  

Plastic parts may deteriorate and fall off or result in 

water leakage.

(b)  Where corrosive gas, such as sulfurous acid gas, is 

produced.  

Corroding copper pipes or soldered parts may result in 

refrigerant leakage.

(c)  Near machinery emitting electromagnetic waves. 

Electromagnetic waves may disturb the operation of 

the control system and cause the unit to malfunction.

(d)  Where flammable gas may leak, where there is carbon 

fiber, or ignitable dust suspension in the air, or where 

volatile flammables such as thinner or gasoline are 

handled. Operating the unit in such conditions can 

cause a fire.

• 

Take adequate measures to prevent the outdoor unit 

from being used as a shelter by small animals. Small 

animals making contact with electrical parts can cause 

malfunctions, smoke, or fire. Instruct the user to keep the 

area around the unit clean.

NOTE 

• 

Install the power supply and inter-unit wires for the indoor 

and outdoor units at least 3.5ft away from televisions or 

radios to prevent image interference or noise. Depending 

on the radio waves, a distance of 3.5ft may not be 

sufficient to eliminate the noise.

• 

Dismantling the unit, treatment of the refrigerant, oil and 

additional parts must be done in accordance with the 

relevant local, state, and national regulations.

• 

Do not use the following tools that are used with 

conventional refrigerants: gauge manifold, charge hose, gas 

leak detector, reverse flow check valve, refrigerant charge 

base, vacuum gauge, or refrigerant recovery equipment.

• 

If the conventional refrigerant and refrigerator oil are 

mixed in R410A, the refrigerant may deteriorate.

• 

This air conditioner or heat pump is an appliance that 

should not be accessible to the general public.

•  As design pressure is 478 psi, the wall thickness of field-

installed pipes should be selected in accordance with the 

relevant local, state, and national regulations.

English

01_EN_3P379970-6B.indd   2

11/13/2015   15:48:24

Summary of Contents for RX09NMVJU

Page 1: ...U RXN18NMVJU RXN24NMVJU RK09NMVJU RK12NMVJU RK18NMVJU RK24NMVJU RKN09NMVJU RKN12NMVJU RKN18NMVJU RKN24NMVJU RXL09QMVJU RXL12QMVJU RXL15QMVJU DAIKIN ROOM AIR CONDITIONER INSTALLATION MANUAL R410A Split...

Page 2: ...ts and an asphyxiation hazard could occur leading to serious injury or death Do not ground units to water pipes gas pipes telephone wires or lightning rods as incomplete grounding can cause a severe s...

Page 3: ...re should be prevented from getting into the system b Tight R410A does not contain any chlorine does not destroy the ozone layer and does not reduce the earth s protection again harmful ultraviolet ra...

Page 4: ...re more than 10ft 3m away depending on radio wave conditions 8 In coastal areas or other places with a salty atmosphere or one containing sulfate gas corrosion may shorten the life of the air conditio...

Page 5: ...length is 10ft 3m in order to avoid noise from the outdoor unit and vibration Mechanical noise and vibration may occur depending on how the unit is installed and the environment in which it is used 1...

Page 6: ...w Top view More than 5 7 8 150 More than 11 13 16 300 More than 1 15 16 50 Walls facing three sides unit inch mm unit inch mm Top view More than 3 15 16 100 More than 13 3 4 350 More than 1 15 16 50 W...

Page 7: ...in order to guarantee its service life The drying material may dissolve and damage the system Incomplete flaring may result in refrigerant gas leakage 4 Refrigerant piping CAUTION Use the flare nut f...

Page 8: ...e than 550psi 3 8MPa for 1 hour minimum 24 hours recommended If there is a pressure drop check for leaks make repairs and perform the pressure test again 2 Connect the gauge manifold s charging hose t...

Page 9: ...on materials When using commercial copper pipes and fittings observe the following Insulation material Polyethylene foam Heat transfer rate 0 041 to 0 052W mK 0 024 to 0 030Btu fth F 0 035 to 0 045kca...

Page 10: ...Tighten the terminal screws securely It is recommended that a flathead screwdriver be used to tighten the screws The screws are packed with the terminal block 1 2 3 1 2 3 Circuit breaker Ground fault...

Page 11: ...r power supply wiring When using stranded wires make sure to use the round crimp style terminal for connection to the power supply terminal block Stranded wire Round crimp style terminal Arrow view Fl...

Page 12: ...Pump Down Operation In order to protect the environment be sure to pump down when relocating or disposing of the unit 1 Remove the valve cap from the liquid stop valve and gas stop valve 2 Carry out f...

Page 13: ...the instructions in the installation manual for the indoor unit The air conditioner draws a small amount of power in its standby mode If the system is not to be used for some time after installation...

Page 14: ...Two dimensional bar code is a manufacturing code 3P379970 6B M15B135 1511 HT...

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