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Safety Precautions

• Read these Safety Precautions carefully to ensure correct installation.
• This manual classifies the precautions into DANGER, WARNING and CAUTION. 

Be sure to follow all the precautions below: they are all important for ensuring safety.

DANGER ..........Indicates an imminently hazardous situation which, if not avoided, will result in death or serious 

injury.

WARNING ........Failure to follow any of WARNING is likely to result in such grave consequences as death or serious 

injury.

CAUTION .........Failure to follow any of CAUTION may in some cases result in grave consequences.

• The following safety symbols are used throughout this manual:

Be sure to observe this instruction.

Be sure to establish an earth connection.

Never attempt.

• After completing installation, test the unit to check for installation errors. Give the user adequate instructions con

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cerning the use and cleaning of the unit according to the Operation Manual.

 DANGER

• Refrigerant gas is heavier than air and replaces oxygen. A massive leak could lead to oxygen depletion, especially 

in basements, and an asphyxiation hazard could occur leading to serious injury or death.

• If the refrigerant gas leaks during installation, ventilate the area immediately.

Refrigerant gas may produce a toxic gas if it comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas 
could cause severe injury or death.

• After completing the installation work, check that the refrigerant gas does not leak.

Refrigerant gas may produce a toxic gas if it comes in contact with fire such as from a fan heater, stove or cooking device. Exposure to this gas 
could cause severe injury or death.

• Do not ground units to water pipes, telephone wires or lightning rods because incomplete grounding could cause a 

severe shock hazard resulting in severe injury or death, and to gas pipes because a gas leak could result in an 

explosion which could lead to severe injury or death.

• Safely dispose of the packing materials.

Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries. Tear apart and throw away plastic 
packaging bags so that children will not play with them. Children playing with plastic bags face the danger of death by suffocation.

• Do not install unit in an area where flammable materials are present due to risk of explosion resulting in serious 

injury or death.

• Do not ground units to telephone wires or lightning rods because lightning strikes could cause a severe shock 

hazard resulting in severe injury or death, and to gas pipes because a gas leak could result in an explosion which 

could lead to severe injury or death.

 WARNING

• Installation shall be left to the authorized dealer or another trained professional.

Improper installation may cause water leakage, electrical shock, fire, or equipment damage.

• Install the air conditioner according to the instructions given in this manual. 

Incomplete installation may cause water leakage, electrical shock, fire or equipment damage.

• Be sure to use the supplied or exact specified installation parts.

Use of other parts may cause the unit to come to lose, water leakage, electrical shock, fire or equipment damage.

• Install the air conditioner on a solid base that is level and can support the weight of the unit.

An inadequate base or incomplete installation may cause injury or equipment damage in the event the unit falls off the base or comes loose.

• Electrical work shall be carried out in accordance with the installation manual and the national, state and local 

electrical wiring codes.

Insufficient capacity or incomplete electrical work may cause electrical shock, fire or equipment damage.

• Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance.  

Follow all appropriate electrical codes.

• For wiring, use a wire or cable long enough to cover the entire distance with no splices if possible. Do not use an 

extension cord. Do not put other loads on the power supply. Use only a separate dedicated power circuit.

(Failure to do so may cause abnormal heat, electric shock, fire or equipment damage.)

• Use the specified types of wires for electrical connections between the indoor and outdoor units. Follow all state 

and local electrical codes.

Firmly clamp the interconnecting wires so their terminals receive no external stresses. Incomplete connections or clamping may cause terminal 
overheating, fire or equipment damage.

01_EN_3P297301-3C.indd   1

10/26/2012   11:27:22 AM

Summary of Contents for SUPER MULTI NX CDXS18LVJU

Page 1: ...ANUAL R410A Split Series Installation manual Manuel dinstallation Manual de instalación English Français Español MODELS FDXS09LVJU FDXS12LVJU CDXS15LVJU CDXS18LVJU CDXS24LVJU Manuel dinstallation 00_CV_3P297301 3C indd 1 10 26 2012 11 23 56 AM ...

Page 2: ...bags so that children will not play with them Children playing with plastic bags face the danger of death by suffocation Do not install unit in an area where flammable materials are present due to risk of explosion resulting in serious injury or death Do not ground units to telephone wires or lightning rods because lightning strikes could cause a severe shock hazard resulting in severe injury or d...

Page 3: ...ault circuit interrupter breaker may result in electrically shocks or personal injury CAUTION Establish drain piping according to the instructions of this manual Inadequate piping may cause water damage Note for installing the outdoor unit For heat pump model only In regions of the country where the outside temperature is at or below the freezing point the drain may freeze If so it is recommended ...

Page 4: ...ough reinforce the ceiling before installing the unit Installation pitch is marked on the carton box for installation Refer to it to check for points requiring reinforcing Select the H dimension such that a downward slope of at least 1 100 is ensured as indicated in Drain Piping Work The installation pitch is listed on the packing material and should be checked when deciding whether to reinforce t...

Page 5: ... to reinforce the ceiling frame to prevent shaking Consult an architect or carpenter for details Install the suspension bolts Use W3 8 to M10 suspension bolts Use a hole in anchor sunken insert sunken anchor for existing ceilings and a sunken insert sunken anchor or other part to be procured in the field to reinforce the ceiling to bearing the weight of the unit Refer to Fig 19 11 16 500 17 3 4 45...

Page 6: ...cessory accessory For bottom intake type 4 Attach the hanger right insulation to the right hanger Stored in outlet vent See the below figure for the sticking base line Hanger right insulation accessory Slit Sticking base line Hanger bracket right Arrow view 5 Attach the air filter accessory in the manner shown in the diagram In case of bottom side In case of back side Filter Push Push Main unit At...

Page 7: ... with water In using a plastic tube instead of a level adjust the top surface of the unit to the surface of the water at both ends of the plastic tube and adjust the unit horizontally One thing to watch out for in particular is if it is installed so that the slope is not in the direction of the drain piping as this might cause leaking Tighten the upper nut Mounting the receiver Mount the receiver ...

Page 8: ...o prevent damage to the flare nuts and escaping gas Flare nut tightening torque Gas side Liquid side 3 8 inch 9 5mm 1 2 inch 12 7mm 5 8 inch 15 9mm 1 4 inch 6 4mm 24 1 29 4ft lbf 32 7 39 9N m 36 5 44 5ft lbf 49 5 60 3N m 45 6 55 6ft lbf 61 8 75 4N m 10 4 12 7ft lbf 14 2 17 2N m CAUTION Overtightening may damage the flare and cause leaks 3 After the work is finished make sure to check that there is...

Page 9: ...ness 13 32 inch 10mm Min 1 3 16 inch 30mm or more 1 9 16 inch 40mm or more 1 15 16 inch 50mm or more 1 3 16 inch 30mm or more Thickness 0 031 inch 0 8mm C1220T O Thickness 0 039 inch 1 0mm C1220T O Thickness 0 031 inch 0 8mm C1220T O Also when subject to high humidity heat insulation of the refrigerant piping the unit piping and branch piping must be further reinforced Reinforce the insulation whe...

Page 10: ... the indoor unit through the drain pipes and corrode the heat exchanger Do not twist or bend the drain hose so that excessive force is not applied to it This type of treatment may cause leaking After piping work is finished check drainage flows smoothly Gradually insert approximately 1L of water into the drain pan to check drainage in the manner described below Gradually pour approximately 1L of w...

Page 11: ...laths of the net or fence shape or metal plating into wooden buildings Wiring See the installation manual supplied with the outdoor unit HOW TO CONNECT WIRINGS Wire only after removing the control box cover as shown in the Fig Remote controller wiring Control box cover Wiring Diagram rear Conduit mounting plate accessory Conduit field supply Lock nut field supply Screw accessory Power supply wiring ...

Page 12: ...e control box cover Next pull the wires into the unit through the conduit and thread them through the insulation tube accessory then connect to the power wiring terminal block 4P Secure the wires covered by the insulation tube with the clamp accessory Be sure to put the part of the sheathed vinyl into the control box Terminal block 4P Conduit Power supply wiring Ground wire Indoor PC board ASSY Cl...

Page 13: ... out the test operation in accordance with the Operation Manual to ensure that all functions and parts are working properly The air conditioner requires a small amount of power in its standby mode If the system is not to be used for some time after installation shut off the circuit breaker to eliminate unnecessary power consumption If the circuit breaker trips to shut off the power to the air cond...

Page 14: ...Two dimensional bar code is a code for manufacturing 3P297301 3C M11B121B 1210 HT 00_CV_3P297301 3C indd 2 10 26 2012 11 23 57 AM ...

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