Summary of the content on the page No. 1
ROOM AIR CONDITIONER
DC INVERTER
OUTDOOR UNIT
INSTALLATION INSTRUCTIONS
AU122AEERA
AU182AFERA
AU242AGERA
AU282AHERA
AU362AHERA
AU36NAHERA
AU422AIERA
AU42NAIERA
AU522AIERA
AU52NAIERA
Before using the air conditioner,please read this manual carefully.
Please keep this manual properly for future use.
No. 0010576506C
Summary of the content on the page No. 2
CONTENTS Name of Parts------------------------------------------------------------------1 Safety Cautions--------------------------------------------------------------2-7 Read Before Installation--------------------------------------------------8-12 Installation Procedure---------------------------------------------------13-22
Summary of the content on the page No. 3
Name of Parts AU122AEERA AU182AFERA AU242AGERA Air inlet Air inlet Air outlet Air outlet Compressor Compressor (Inside of unit) (Inside of unit) Air inlet AU282AHERA AU362AHERA Air outlet AU36NAHERA Compressor (Inside of unit) Air inlet AU422AIERA AU42NAIERA AU522AIERA Air outlet AU52NAIERA Compressor (Inside of unit) 1
Summary of the content on the page No. 4
Safety Cautions Carefully read the following information in order to operate the air conditioner correctly. Below are listed three kinds of Safety Cautions and Suggestions. Incorrect operations may result in severe consequences of death or serious injuries. WARNING! CAUTION! Incorrect operations may result in injuries or machine damages; in some cases may cause serious consequences. INSTRUCTIONS: These information can ensure the correct operation of the machine. Symbols used in the illustrations
Summary of the content on the page No. 5
Safety Cautions WARNING! No goods or nobody is permitted to Installed electrical-leaking circuit placed on or stand on outdoor unit. breaker. It easily cause electrical shock without The falling of goods and people may circuit breaker. cause accidents. Air-conditioner can't be installed in the environment with inflammable gases because the inflammable gases near to air-conditioner may cause fire hazard. Please let the dealer be responsible for Don't operate the air-conditioner with installing t
Summary of the content on the page No. 6
Safety Cautions Warning ! Have the unit professionally installed. Be sure to carefully follow each step in this handbook when installing the unit. Improper installation by an unqualified person Improper installation may result in water leak, may result in water leak, electric shock, or fire. electric shock, smoke or fire. Place the unit on a stable, level surface that Have all electrical work performed by a withstands the weight of the unit to prevent licensed electrician according to the local
Summary of the content on the page No. 7
Safety Cautions Warning ! Do not touch the fins on the heat exchanger When installing the unit in a small room, with bare hands:they are sharp and safeguard against hypoxia that results from dangerous. leaked refrigerant reaching the threshold level. In the event of a refrigerant gas leak, Consult the dealer for necessary measures to take. provide adequate ventilation to the room. When relocating the air conditioner, If leaked refrigerant gas is exposed to a heat consult the dealer or a speciali
Summary of the content on the page No. 8
Safety Cautions Caution! Store the piping to be used during Do not use a charging cylinder. installation indoors, and keep both ends of The use of charging cylinder will change the the piping sealed until immediately before composition of the refrigerant and lead to power brazing.(keep elbows and other joints loss. wrapped in plastic.) Exercise special care when handling the If dust, dirt, or water enters the refrigerant cycle, tools. it may cause the oil in the unit to deteriorate or An introdu
Summary of the content on the page No. 9
Safety Cautions Before installing(Relocating) the Unit or Performing Electric Work Caution! Ground the unit. Do not spray water on the air conditioners or immerse the air conditioners in water. Do not connect the grounding on the unit to gas Water on the unit presents a risk of electric shock. pipes,water pipes, lightning rods,or the grounding terminals of telephones. Improper grounding presents a risk of electric shock, Periodically check the platform on which smoke, fire, or the noise caused b
Summary of the content on the page No. 10
Read Before Installation Items to Be Checked <1>. Verify the type of refrigerant used by the unit to be serviced. Refrigerant Type: R410A <2>. Check the symptom exhibited by the unit to be serviced. Look in this sercice handbook for sympeoms relating to the refrigerant cycle. <3>. Be sure to carefully read the Safety cautions at the beginning of this document. <4>. If there is a gas leak or if the remaining refrigerant is exposed to an open flame, a noxious gas hydrofluoric acid may fo
Summary of the content on the page No. 11
Read Before Installation 2. Tools and materials that may be used with R410 with some restrictions Tools/Materials Use Notes Gas leak detector Detection of gas leaks The ones for HFC type refrigerant may be used. Vacuum Pump Vacuum drying May be used if a reverse flow check adaptor is attached. Flare Tool Flare machining of piping Chages have been made in the flare machining dimension.Refer to the next page. Refrigerant Recovery Recovery of refrigerant May be used if designed for use with Equipme
Summary of the content on the page No. 12
Read Before Installation Use pipes made of phosphorus deoxidized copper. Since the operation pressure of the units that use R410A is higher than that of the units for use with R22, use pipes with at least the radial thickness specified in the chart below. (Pipes with a radial thickness of 0.7mm or less may not be used.) Size(mm) Size(inch) Radial Thickness(mm) Type 6.35 1/4'' 0.8t 9.52 3/8'' 0.8t Type-O pipes 12.7 1/2'' 0.8t 15.88 5/8'' 1.0t 19.05 3/4'' 1.0t T
Summary of the content on the page No. 13
Read Before Installation *The table shows the standards in Japan. Using this table as a reference, choose pipes that meet the local standards. Airtightness Test No changes from the conventional method .Note that a refrigerant leakage detector for R22 or R407C cannot detect R410A leakage. NO NO Halide torch R22 or R407C leakage detector Items to be strictly observed : 1. Pressurize the equipment with nitrogen up to the design pressure and then judge the equipment's air tightness, taking tempe
Summary of the content on the page No. 14
Read Before Installation Charging Refrigerant R410A must be in a liquid state when charging. Reasons : 1. R410A is a pseudo-azeotropic refrigerant (boiling point R32= -52*, R125= -49*) and can roughly be handled in the same way as R22; however, be sure to fill the refrigerant from the liquid side, for doing so from the gas side will somewhat change the composition of the refrigerant in the cylinder. Note : * In the case of a cylinder with a syphon, liquid R410A is charged without tur
Summary of the content on the page No. 15
Installation Procedure Installation of outdoor unit Edging 1. Accessories "Edging" for protection of electric wires from an opening edge. 2. Selection of the place of installation Select the place of installation satisfying the following conditions and, at the same time, obtain a consent from the client or user. Place where air circulates. Place free from heat radiation from other heat sources. Place where drain water may be discharged. Place where noise and hot air may not disturb the neighborh
Summary of the content on the page No. 16
Installation of outdoor unit Installation Procedure 3. Installation of outdoor unit (1) Installation Fix the unit in a proper way according to the condition of a place where it is installed by referring to the following .For example AU242AGERA. (a) Concrete foundation (b) Foundation anchor Unit Unit Anchor bolt Concrete foundation Concrete foundation To fix by bolts Anchor bolt Install the unit so that the angle of inclination must be less than 3 degrees. (2) Installation sketch of outdoor unit
Summary of the content on the page No. 17
Installation of outdoor unit Installation Procedure 580 AU242AGERA 860 Power Wiring Terminal Power Wiring Distribution Hole 630 AU282AHERA AU362AHERA AU36NAHERA 948 Power Wiring Terminal Power Wiring Distribution Hole 580 15 288 315 308 730 335 380 840 25 340
Summary of the content on the page No. 18
Installation of outdoor unit Installation Procedure AU422AIERA AU42NAIERA AU522AIERA AU52NAIERA 948 Power wiring Terminal 580 4. Refrigerant piping (1) Outline piping AU122AEERA AU182AFERA Flare connection 3-way stop valve Gas pipe Outdoor Indoor unit unit Liquid pipe Flare connection 2-way stop valve AU242AGERA AU282AHERA AU362AHERA AU36NAHERA AU422AIERA AU42NAIERA AU522AIERA AU52NAIERA 3-way stop valve Flare connection Gas pipe Outdoor Indoor unit unit Liquid pipe 3-way stop va
Summary of the content on the page No. 19
Refrigerant piping Installation Procedure (2) Piping size Liquid pipe 6.35x0.8mm AU122AEERA AU182AFERA Gas pipe 12.7x1.0mm AU242AGERA Liquid pipe 9.52x0.8mm AU282AHERA 90+0.5 AU362AHERA Gas pipe 15.88x1.0mm AU36NAHERA AU422AIERA Install the removed flare nuts to Liquid pipe 9.52x0.8mm AU42NAIERA the pipes to be connected, then AU522AIERA Gas pipe flare the pipes. 19.05x1.0mm AU52NAIERA (3) Limitations for one way piping length and vertical height difference. Vertical height difference Mod
Summary of the content on the page No. 20
Refrigerant piping Installation Procedure 5. Air discharging method After finishing connection of refrigerant pipe, it shall perform air tightness test. The air tightness test adopts nitrogen tank to give pressure according to the pipe connection mode as the following figure shown. The gas and liquid valve are all in close state. In order to prevent the nitrogen entering the circulation system of outdoor unit, tighten the valve rod before giving pressure (both gas and liquid valve rods). Low pre
