FOR SERVICE PERSONNEL ONLY
A circuit breaker must be installed in the house distribution box for the direct connected power supply cables to the outdoor unit. In case of other installations a main switchwith a contact gap or more than 3mm has to be installed. Without a circuit breaker, the danger of electric shock exists. Do not install the unit near a location where there is flammablegas. The outdoor unit may catch fire if flammable gas leaks around it. Please ensure smooth flow of water when installing the drain hose.Improper installing may wet your funiture. An IEC approved power cord should be used. Power cord type: NYM. WARNING • The unit should be mounted at stable, non-vibratory location which can provide full support to the unit. CAUTION • No nearby heat source and no obstruction near the air outlet is allowed. • The clearance distances from top, right and left are specified in figure below. • The location must be convenient for water drainage and pipe connection with the Outdoor unit. • To avoid interference from noise, please place the unit and its remote controller at least 1m from the radio and television. • To avoid any error in signal transmission from the remote controller, please put the controller far away from high- frequency machines and high-power wireless systems. • • • • THE CHOICE OF MOUNTING SITE (Please note the following matters and obtain permission from customer before installation.) The installation height should be at least 2300 mm or more from the floor. •
RAK-50RXB RAK-35RXB RAK-25RXB RAK-18QXB
SAFETY PRECAUTION • Read the safety precautions carefully before operating the unit. • The contents of this section are vital to ensure safety. Please pay special attention to the following sign. WARNING .......... Incorrect methods of installation may cause death or serious injury. CAUTION .......... Improper installation may result in serious consequence. Make sure to connect earth line. This sign in the figures indicates prohibition. Be sure that the unit operates in proper condition after installation. Explain to customer the proper operation and maintenance of the unit as described in the user' s guide. Ask a customer to keep this installation manual together with the instruction manual. WARNING • Please request your sales agent or qualified technician to install your unit. Water leakage, short circuit or fire may occur if you do the installation work yourself. • Please observe the installation stated in the installation manual during the process of installation. Improper installation may cause water leakage, electric shock and fire. • Make sure that the units are mounted at locations which are able to provide full support to the weight of the units. If not, the units may collapse and impose danger. • Observe the rules and regulations of the electrical installation and the methods described in the installation manual when dealing with the electrical work. Use cables which are approved official in your country. Be sure to use the specified circuit. A short circuit and fire may occur due to the use of low quality wire or improper work. • Be sure to use the specified cables for connecting the indoor and outdoor units. Please ensure that the connections are tight after the conductors of the wire are inserted into the terminals to prevent the external force is being applied to the connection section of the terminal base. Improper insertion and loose contact may cause over-heating and fire. • Please use the specified components for installation work. Otherwise, the unit may collapse or water leakage, electric shock, fire or stronger vibration may occur. • Be sure to use the specified piping set for R410A. Otherwise, this may result in broken copper pipes or faults. • When installing or transferring an air conditioner to another location, make sure that air other than the specified refrigerant(R410A) does not enter the refrigeration cycle. If other air should enter, the pressure level of the refrigeration cycle may increase abnormally which could result in a rupture and injury. • Be sure to ventilate fully if a refrigerant gas leak while at work. If the refrigerant gas comes into contact with fire, a poisonous gas may occur. • After completion of installation work, check to make sure that there is no refrigeration gas leakage. If the refrigerant gas leaks into the room, coming into contact with fire in the fan-driven heater, space heater, etc., a poisonous gas may occur. • Unauthorized modifications to the air conditioner may be dangerous. If a breakdown occurs please call a qualified air conditioner technician or electrician. Improper repairs may result in water leakage, electric shock and fire, etc. • Be sure to connect the earth line from the power supply wire to the outdoor unit and between the outdoor and indoor unit. Do not connect the earth line to the gas tube, water pipe, lighting rod or the earth line of the telephone unit. Improper earthing may cause electric shocks. • When finishing the refrigerant collection (pumping down), stop the compressor and then remove the coolant pipe. If you remove the refrigerant pipe while the compressor is operating and the service valve is released, air is sucked and a pressure in the freezing cycle system will build up steeply, causing an explosion or injury. • When installing the unit, be sure to install the refrigerant pipe before starting the compressor. If the refrigerant pipe is not installed and the compressor is operated with the service valve released, air is sucked and the pressure level of the refrigeration cycle may increase abnormally which could result in a rupture and injury.
Figure showing the Installation of Indoor Unit.
Names of Indoor Components
Be sure to completely seal any gap with putty.
Screw for Hanger
2300 mm or more
The indoor piping should be insulated with the enclosed insulation pipe. (If the insulator is insufficient, please use commercial products.)
AAA size Battery
Air Cleaning Mesh Wasabi-Nano Titanium
Direction of Piping Backward piping from left
Remote Controller Holder
1 Installation of Hanger , Wall Penetration and Installation of Protection Pipe CAUTION • The draining of the water container inside the Indoor unit can be done from the left. Therefore the hanger must be fixed horizontally or slightly tilted towards the side of drain hose. Otherwise, condensed water may overflow the water container. The electric cables should neither be reworked nor added. Make sure to use an exclusive circuit breaker. Otherwise fire or electric shock might occur by connection failure, isolation failure or over current. Make sure to connect cables to terminal properly and terminal cover should close firmly. Otherwise, over heating at terminal contact, fire or electric shock might occur. Make sure that there is no dust on any connected points of electric cables and fix firmly. Otherwise, fire or electric shock might occur. • • • •
There are 6 directions allowed,namely,backward piping, backward piping from left,horizontally piping from right,horizontally piping from left,vertically down from right,vertically down from left.
Screw for Remote Controller Holder
2 Installation Of The Indoor Unit
Installation Of Remote Controller • The remote controller can be placed in its holder which is fixed on wall or beam. To operate the remote controller at its holder, please ensure that the unit can receive signal transmitted from the controller at the place where the holder is to be fixed.The unit will beep when signal is received from the remote controller .The signal transmission is weaken by the fluorescent light. Therefore, during the installation of the remote control holder, please switch on the light,even during day time,to determine the mounting location of the holder.
Cutting Low Cover bush • While installing the pipe from the right, left or bottom side, use a knife to cut openings as shown in figure. Then smoothen the edges of openings with a file.
Direct Mounting On The Wall • Please use hidden beams in the wall to hold the hanger.
Visible outline of the outdoor unit
The remote controller must be slide in the remote controller holder, in the direction as shown in the figure, until it hooks at the lower end of the remote controller holder.
1 PIPING FROM THE RIGHT SIDE (BACKWARD, DOWNWARD, HORIZONTAL) Preparation • Connect connecting cord. • Pull out the pipe, connecting cord and drain hose.
Remote Controller Holder
Screw (2 pieces)
Screw for Hanger
Wall Penetration and Installation of Protection Pipe
Screw the hanger at the positions possibly near the
• Drill a ø65mm hole on wall which is slightly tilted towards the outdoor side. Drill the wall at a small angle. • Cut the protection pipe according to the wall thickness. • Empty gap in the sleeve of protection pipe should be completely sealed with putty to avoid dripping of rain water into the room. • Please ensure smooth flow of water when installing the drain hose. Improper installing may wet your funiture. • An IEC approved power cord should be used. Power cord type: NYM. WARNING
upper and lower hooks where the indoor unit is hung. Use 4 or more screws to fix the hanger.
Connecting cords, pipe and drain hose must be laid together with Vinyl tape.
Seal with putty
Seal with putty
Installation • Insert the pipe through the wall hole. 1 The upper part of the Indoor unit is hanged on the hanger. 2 The projection at the lower part of the Indoor unit is hooked onto the hanger.
Procedures of Installation and Precautions • Procedures to fix the hanger. 1.Drill holes on wall. (As shown below) 2.Push plug into the holes. (As shown below)
3.Fix the hanger on wall with 4.1 x 32 screw. (As shown in figure below)
1 Hanger 2 Screw
Plug (Procure locally)
Sleeve of protection pipe
Drain layout of backward piping
• Procedures to fix the holder of remote control. 1.Drill holes on wall.(As shown below) 2. Push plug into the holes. (As shown below)
Lift the body of the unit upwards and then force it downwards.
Be sure that the wire is not in contact with any metal in the wall. Please use the protection pipe as wire passing through the hollow part of the wall so as to prevent the possibility of damaged by mouse. Unless it seals completely,any air with high humidity flows from outdoor and any dew may drop.
Remote Control Holder
Plug (Procure locally) Screw 8
Protection Pipe Drain Hose Connecting Cord
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