Toshiba RAV-SP240AT2-UL Air Conditioner User Manual
Contents
1. Do not climb onto or place objects on top of the outdoor unit You may fall or the objects may fall off of the outdoor unit and result in injury Wear heavy gloves during the installation work to avoid injury EQUIPMENT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation Do not bury more than 36 in 914 mm of refrigerant pipe in the ground If any section of pipe is buried there must be a 6 in 152 mm vertical rise to the valve connections on the outdoor units If more than the recommended length is buried refrigerant may migrate to the cooler buried section during extended periods of system shutdown This causes refrigerant slugging and could possibly damage the compressor at start up zB 6 EN 7 EN Outdoor Unit Installation Manual 5 INSTALLATION OF NEW REFRIGERANT AIR CONDITIONER N CAUTION New Refrigerant Air Conditioner Installation THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT R410A WHICH DOES NOT DESTROY OZONE LAYER R410A refrigerant is apt to be affected by impurities such as water oxidizing membrane and oils because the working pressure of R410A refrigerant is approx 1 6 times as that of refrigerant R22 Accompanied with the adoption of the new refrigerant the refrigerant oil has also been changed Therefore during installation work be sure that water dust former refrigerant or refrigerant oil does not enter the new type refrigerant R410A2. 20 EN Outdoor Unit _ Installation Manual Display mode 1 Display mode 2 No Cause D800 D801 D802 D803 D804 D800 D801 D802 D803 D804 21 High pressure release operation O O O e O e e e 22 Outdoor fan motor error O O O e O e e 23 Compressor driver short circuit protection O O O e O e e 24 Position detection circuit error in one line display O O OFF O ON O Flashing The LEDs and DIP switches are located on the lower left of the P C board of the outdoor unit SW801 51 800 2 Enlarged view f LEDs E 5 SC LED SW804 ES D802 D803 m D804 E D805 Come cs SW803 ZE E E SW802 ZE 21 EN 21 Outdoor Unit _ Installation Manual 13UNIT PUMP DOWN Use the pump down switch SW801 on the P C board of the outdoor unit to pump down the unit Procedure 1 Turn on the power of the air conditioner 2 Select the FAN mode for indoor unit operation with the remote controller 3 Set SW804 on the P C board of the outdoor unit to all OFF and then press SW801 for 1 second or more The air conditioner enters the forced cooling mode for up to 10 minutes Pump down the unit during this 10 minutes 4 U
3. No Cause Display mode 1 Display mode 2 D800 D801 D802 D803 D804 D800 D801 D802 D803 D804 Normal Discharge TD sensor error Heat exchanger TE sensor error Heat exchanger TL sensor error Outside air temperature TO sensor error Suction TS sensor error OO om AJOJN Heat sink TH sensor error Outdoor temperature sensor TE TS connection 8 error 9 Outdoor EEPROM error 10 Compressor lock 11 Compressor lock 12 Current detection circuit error 13 Thermostat for compressor activated 14 Model data not set on the service P C board 15 MCU MCU communication error 16 Discharge temperature error 17 Abnormal power open phase detected or abnormal voltage 18 Heat sink overheat 19 Gas leak detected e Oleojeolo el ojleeeooe oe ee e 00 006 e 0 O O O 20 4 way valve reverse error O O O OJ O OJO O CO OF O OF OF OF OF OF O 0 0 0 e e e OFF O ON O Flashing 20
4. Never use the system compressor as a vacuum pump Refrigerant tubes and indoor heat exchanger should be evacuated using the recommended deep vacuum method of 500 microns The alternate triple evacuation method may be used if the procedure outlined below is followed Always break a vacuum with dry nitrogen SYSTEM VACUUM AND CHARGE Using Vacuum Pump 1 Completely tighten flare nuts A B C D connect manifold gage charge hose to a charge port of the low side service valve Service Valve Refrigerant Indoor Unit Outdoor Unit A Low Side DK DIS High Side Service Valve 2 Connect charge hose to vacuum pump 3 Fully open the low side of manifold gage Manifold Manifold Gage High side valve Charge hose Vacuum pump Low side valve 4 Start vacuum pump 5 Evacuate using either deep vacuum or triple evacuation method 17 EN 6 After evacuation is complete fully close the low side of manifold gage and stop operation of vacuum pump Deep Vacuum Method The deep vacuum method requires a vacuum pump capable of pulling a vacuum of 500 microns and a vacuum gage capable of accurately measuring this vacuum depth The deep vacuum method is the most positive way of assuring a system is free of air and liquid water Deep Vacuum Graph 5000 4500 4000 LEAK IN 3900 SYSTEM 3000 Q 2500 2000 1500 VACUUM TIGHT TOO
5. Ts NOTE 11 8 of more v v si PR So When the outdoor unit is anchored directly on E the foundation pad cooling only protrude a 85 minimum of 6 15 b Intake and supply in line Open above and to the right and left of the unit The height of an obstacle in both the front and 0 6 15 mm or less rear of the unit should be lower than the height of the outdoor unit Standard installation Oe of 39 4 8 Por 1 9 1000 360 or 1500 2600 200 or more more or more or more or more 10 10 EN 11 EN Outdoor Unit 3 Place unit on stand Make sure it is level and fasten securely to the stand Asshownin the figure below install the foundation and vibration proof rubber pads to directly support the bottom surface of the fixing leg that is in contact with the bottom plate of the outdoor unit Wheninstalling the foundation for an outdoor unit with downward piping consider the piping work GOOD Mounting leg Foundation Bottom plate of outdoor unit Foundation Support the bottom surface of the mounting leg that is in contact with and underneath the bottom plate of the outdoor unit NO GOOD Do not support the outdoor unit only with the mounting leg If only the end of the mounting leg is supported it may deform Foundation Installation Manual a e When water is to be drained through the drain hose attac
6. but also trouble with the refrigeration cycle Do not apply refrigerant oil to the flared surface 13 Outdoor Unit Installation Manual 7 ELECTRICAL CONNECTIONS N WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death The unit cabinet must have an uninterrupted or unbroken ground to minimize personal injury if an electrical fault should occur The ground may consist of electrical wire or metal conduit when installed in accordance with existing electrical codes Before performing service or maintenance be sure main power switch is turned OFF N CAUTION All wiring and connections must comply with NEC local codes UNIT DAMAGE HAZARD Failure to follow this caution may result in damage or improper operation Unit failure as a result of operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electrical components Wrong wiring may cause a burn out of some electrical parts Donot damage or scratch the conductive core or inner insulator of the power and inter connecting wires when peeling them Electric control box Front panel Field wiring v terminal Valve mounting bracket Front Pipe cover Piping knockout B Field wiring The dashed lines show field wiring Field power System supply interc
7. 2 39 4 1000 or more zs S x E amp Bs d N 5 9 11 8 11 8 11 8 150 300 300 300 The height of the obstacle should be lower than the height of the outdoor unit Barrier also above unit 5 9 150 or more 19 7 500 or more 9 EN 9 Outdoor Unit Installation Manual Barriers in front and back of unit B installation of Outdoor Unit Open above and to the right and left of the unit The height of an barrier in both the front and rear of the unit should be lower than the height of the outdoor Before installation check the strength and horizontal of the base so that abnormal sounds do not unit emanate According to the following base diagram fix the base Standard installation firmly with the anchor bolts 1 Single unit installation Anchor bolt nut 3 8 M10 x 4 pairs ME 525 5 9 150 E 5 9 150 23 6 600 1 LLILLIILIZA AES 0 U 5 sla I 2 TS o v S ed gt 7777777777 RE 85 Drain 2 Multiple unit installation nipple mounting hole a Intake and supply parallel Drain hole 1 Field fabricate a snow or an ice stand for the unit using the above dimension e 2 Place snow or ice stand on a foundation pad _ and secure it to the foundation pad secure 1 V 1 it to foundation pad by anchor bolts ERE E i a LLL
8. i 06 ape 0 12 9 327 aa 15 7 400 Nn Mounting hole sold separately B 12 20 1 3 emboss o m e Knockout for downward piping to N Z views 22 2 EN Outdoor Unit Installation Manual 2 ACCESSORY PARTS Part name Q ty Shape Usage Installation manual 1 This manual Hand this directly to the customer Gs Drain nipple 1 CBS FT Waterproof rubber cap 5 C Edge Guard 1 Protects piping against sharp edges NOTE Use drain nipple and waterproof rubber cap as necessary 3 EN zu Outdoor Unit Installation Manual 3 SYSTEM REQUIREMENTS B Piping Field supplied Minimum refrigerant line length between the outdoor unit and indoor unit is 16 5 5 m Maximum pipe lengths Allowable Height difference pipe length Indoor outdoor H ft ft Total length Indoor unit Outdoorunit L Upper Lower 10 or less 164 1 50 98 5 30 98 5 30 Figure of Single Indoor Unit Refrigerant sizes Liquid side Gas side Outer Outer diameter Thickness diameter Thickness D3 8 0 03 5 8 0 04 9 5 mm 0 8 mm 15 9 mm 1 0 mm Flare nuts and flaring The flare nuts and flaring are different from those for the conventional refrigerant Use the flare nuts supplied with the air conditioner or those for R410A Before performing flaring carefully read REFRIGERANT PIPING Insula
9. re install the pipe cover 12 12 EN Outdoor Unit i Tightening of Flare Connections 1 Align the centers of the flare connections and fully tighten the flare nuts with your fingers Valve at liquid side Piping valve Tightened Flare nut 2 Use two wrenches to loosen or tighten the flare nut on the gas service valve as shown in the figure Use only one wrench to loosen or tighten the flare not on the liquid service valve The final tightening with a torque wrench should be to the specifications shown in table below Unit ftelbs Nem Tightening torque 24 31 33 42 50 60 68 82 Outer diameter of copper pipe 3 8 9 5 mm 5 8 15 9 mm Valve at gas side Cover Piping valve Charge orifice Flare nut 13 EN Installation Manual After the installation work be sure to check for gas leaks of the pipe connections with nitrogen NO GOOD Cover Charge orifice N CAUTION 1 Do not put the crescent wrench on the charge orifice or cover The valve may be broken 2 If applying excessive torque the nut may break according to some installation conditions Pressure of R410A is higher than that of R22 Approx 1 6 times Therefore using a torque wrench tighten the flare pipe connecting sections that connect the indoor outdoor units at the specified tightening torque Incomplete connections may cause not only a gas leak
10. 2 Minimum Circuit Amps MOCP Maximum Over Protection Device Amps 4 EN 5 EN Outdoor Unit Installation Manual 4 PRECAUTIONS FOR SAFETY Installing starting up and servicing air conditioning equipment can be hazardous due to system pressures electrical components and equipment location roofs elevated structures etc Only trained qualified installers and service mechanics should install start up and service this equipment Untrained personnel can perform basic maintenance functions such as cleaning coils All other operations should be performed by trained service personnel When working on the equipment observe precautions in the literature and on tags stickers and labels attached to the equipment Follow all safety codes Wear safety glasses and work gloves Keep quenching cloth and fire extinguisher nearby when brazing Use care in handling rigging and setting bulky equipment Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit Consult local building codes and National Electrical Code NEC for special requirements Recognize safety information This is the safety alert symbol A When you see this symbol on the unit and in instructions or manuals be alert to the potential for personal injury Understand these signal words DANGER WARNING and CAUTION These words are used with the safety alert symbol DANGER identifies the most serio
11. CUM v Flare nut RELEASE CHARGE INTO SYSTEM EUN Final Tubing Check Handle position Fully closed Fully opened IMPORTANT Check to be certain factory tubing on both indoor and outdoor unit has not shifted during shipment Ensure tubes are not rubbing against each other or any sheet metal Pay close attention to feeder rubes making sure wire ties on feeder tubes are secure and tight Main stopper While the valve is fully opened after the screwdriver has reached the stopper do not apply torque exceeding 4 ftelbs 5 Nem Applying excessive torque may damage the valve Valve handling precautions Open the valve stem until it reaches the stop It is unnecessary to apply further force Securely tighten the cap with a torque wrench Cap tightening torque 03 8 9 5 mm 24 31 ft Ibs 33 42 Nem Valve size 5 8 15 9 mm 15 18 ft Ibs 20 25 Nem Charge port 10 13 ftelbs 14 18 Nem 18 18 EN 19 EN Outdoor Unit Installation Manual 9 FINISHING After the refrigerant pipe inter unit wires and drain pipe have been connected make sure they are supported and fixed in place for the entire length Keep the power wires and system interconnection wires away from all factory wiring and piping 1 OTEST RUN Turn on the circuit breaker at least 12 hours before starting the system to preheat the compressor and prevent damage To protect the compressor power is supplie
12. TOSHIBA Carrier AIR CONDITIONER SPLIT TYPE Installation manual Outdoor Unit Model name RAV SP240AT2 UL HFC For OUTDOOR USE only Installation manual Air conditioner Split type 1 Manuel d installation Climatiseur Type split 1 EN Outdoor Unit Installation Manual Please read this Installation Manual carefully before installing the Air Conditioner This Manual describes the installation method of the outdoor unit For installation of the indoor unit refer to the Installation Manual attached to the indoor unit ADOPTION OF NEW REFRIGERANT This Air Conditioner uses R410A an environmentally friendly refrigerant Contents 1 DIMENSION 5 25 viene 2 2 ACCESSORYPARTS eee ene hh hn eee eee nnns 3 3 SYSTEM REQUIREMENTS sese eh RR nnn nnns 4 4 PRECAUTIONS FOR SAFETY 0 00 0 cece eee ee hh nnns 5 5 INSTALLATION OF NEW REFRIGERANT AIR CONDITIONER 7 6 REFRIGERANT PIPING LL 12 7 ELECTRICAL CONNECTIONS 0 00 cece eee ee eee eee 14 8 EVACUATE AND DEHYDRATE THE 17 9 FINISHING 9G 19 10 TEST R UN gioia ea 19 11 PERIODIC MAINTENANCE 0000 ce eee eee eee eee eee 19 12 TROUBLESHOOTING cece eee eee 20 13 UNIT PUMP DOWN 2 0 00 cece RI RR eee eee eens 22 14 POWER SAVE eee e
13. WET 1000 500 TIGHT DRY SYSTEM 0 1 2 3 4 5 6 7 MINUTES Triple Evacuation Method The triple evacuation method should only be used when vacuum pump is only capable of pumping down to 28 in of mercury vacuum and system does not contain any liquid water Refer to Triple Evacuation Method chart and proceed as follows 1 Pump system down to 28 in of mercury and allow pump to continue operating for an additional 15 minutes 2 Close service valves and shut off vacuum pump 3 Connect a nitrogen cylinder and regulator to system and open until system pressure is 2 psig 4 Close service valve and allow system to stand for 1 hr During this time dry nitrogen will be able to diffuse throughout the system absorbing moisture 5 Repeat this procedure as indicated in the chart System will then be free of any cotaminants and water vapor 17 Outdoor Unit Installation Manual Triple Evacuation Method chart Open service valves EVACUATE Open or close the valve v BREAK VACUUM WITH DRY NITROGEN V Liquid side Open the valve with a 4 mm hexagon wrench Walt V Gas side v Valve unit EVACUATE v BREAK VACUUM WITH DRY NITROGEN v WAIT v Using a straight blade screwdriver turn it 90 EVACUATE counter clockwise until the valve is fully open v against the stop CHECK FOR TIGHT DRY SYSTEM Charge orifice IF IT HOLDS DEEP VAC
14. air conditioner cycle To prevent mixing of refrigerant or refrigerant oil the sizes of connecting sections of charging port on main unit and installation tools are different from those of the conventional refrigerant units Accordingly special tools are required for the new refrigerant R410A units For connecting pipes use new and clean piping materials with high pressure fittings made for R410A only so that water and or dust does not enter E Required Tools Equipment and Precautions for Use Prepare the tools and equipment listed in the following table before starting the installation work A R410A exclusive Generic Tools equipment Use Manifold gauge Vacuuming charging refrigerant A Charging hose and operation check A Gas leak detector Gas leak check A Vacuum pump with backflow i prevention function Vacuum drying O Flare tool Flare machining of pipes Usable if dimensions are adjusted Bender Bending pipes Refrigerant recovery equipment Refrigerant recovery Pan Torque wrench Tightening flare nuts A 1 2 12 7 mm and 5 8 215 9 mm Pipe cutter Cutting pipes Q Brazing torch and nitrogen cylinder Braze pipes Refrigerant charging scales Charging refrigerant 4 mm hexagon wrench Opening liquid valve Outdoor Unit B Installation Location N WARNING Install the outdoor unit in a location that can support the weight of the outdoor unit Insufficie
15. be used by adjusting the Lo projection margin of the copper pipe 2 2 lt Projection margin in flaring B Unit in mm Rigid Clutch type Bottom R410A tool Conventional Outer diameter of used tool used 1 Remove the front panel of the unit R410A 2 Remove the pipe cover 3 8 9 5 E I o 3 Remove the appropriate knockout depending 5 8 15 9 OE eae es on the orientation of the piping The pipe cover is easily mounted by cutting off Y Flaring diameter size A Unit in mm the slit at the lower part of the pipe cover Outer diameter of copper pipe A 3 8 9 5 0 52 13 2 5 8 15 9 0 78 19 7 In case of flaring for R410A with the conventional flare tool pull the tool out A approx 0 02 0 5 mm more than that for a R22 to adjust it to the specified flare size The copper pipe gauge is useful for adjusting the projection margin size Be sure to wear heavy work gloves while working 4 Remove the burrs from the knockout opening and use the factory supplied protective edge guard material around the opening to protect the piping and the wiring 5 Remove the flare nut from the service valve on outdoor unit Insert the flare nut into the field piping and flare the pipe Bend the pipe approx 90 degree with a pipe bender for side and rear piping 6 When the piping connections are complete
16. ck Wire cover Ground screw System interconnection Field power wires supply wires a Banding band 3 Pass the wires through the conduit connection holes Wiring and attach the conduit connecters 1 Remove the front panel and remove the front pipe cover Remove the 4 screws E Conduit connector 4 Connect the wires to the terminal blocks and fix the wires to the wiring guide with the 2 included banding band Hu Front pipe cover Terminal block Do not make the wires slack in this section 17 Wire guide Fix with the 2 banding band 15 EN 15 Outdoor Unit Installation Manual Po vo eee 5 Pass the wires through the wiring guide of the front 8 Connect 2 conduits pipe cover and adjust the wire lengths Wiring guide conduit 6 Attach the wire cover and hold the wires with the wiring guide hooks Do not clip or damage the wires with the cover Fix with a screw Fix with 4 screws 16 16 EN Outdoor Unit Installation Manual 8 EVACUATE AND DEHYDRATE THE SYSTEM N CAUTION UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation
17. d from the 208 230 VAC input to the unit to preheat the compressor Check the following before starting a test run e That all pipes are connected securely without leaks That the valve is open If the compressor is operated with the valve closed the outdoor unit will become over pressurized which may damage the compressor or other components If there is a leak at a connection air can be sucked in and the internal pressure further increases which may cause a burst or injury Operate the air conditioner using the correct procedure as specified in the Owner s Manual 1 1 PERIODIC MAINTENANCE Foran air conditioning system that is operated on a regular basis cleaning and maintenance of the indoor outdoor units are strongly recommended As a general rule if an indoor unit is operated for about 8 hours daily the indoor outdoor units will need to be cleaned at least once every 3 months This cleaning and maintenance should be carried out by a qualified service person Failure to clean the indoor outdoor units regularly will result in poor performance icing water leaking and even compressor failure 19 Outdoor Unit Installation Manual 1 21TROUBLESHOOTING You can perform fault diagnosis of the outdoor unit with the LEDs on the P C board of the outdoor unit in addition to using the check codes displayed on the wired remote controller of the indoor unit Use the LEDs and check codes for various checks Details of the check co
18. d in an elevated position be sure to secure its feet Alocation in which drain water poses any problems Installation Manual When an outdoor unitis installed in a location that is always exposed to strong winds like a coast or on the high stories of a building one of the following is recommended Install the unit so that its discharge faces the wall of the structure Keep a distance 19 7 500 mm or more between the unit and wall 19 7 600 mm Install the unit so that the discharge is at a right angle relative to the wind direction Strong wind Use wind baffle Produce those parts in the field e When outside temperature conditions are 23 F 5 C or lower and unit is running in cooling mode Example Wind baffle Wind baffle 8 EN Outdoor Unit Installation Manual E Required Clearances Unit in mm Barrier at rear side Barrier in front Upper side is free Above unit is free 1 Single unit installation 1 Single unit installation 202220202 188 me AD sg Be 7 s_ TH a 25 7777777777 2 Barrier on right left and rear 2 Multiple units installation So or as 1 The height of the 54 v 9 5 v barrier should be D M HA lower than the height e of the outdoor unit 2 e i amp U To 9 5 9 150 YE or iis 11 8 300 or more Qs 3 Multiple units installation Barrier also above unit
19. des displayed on the wired remote controller of the indoor unit are described in the Installation Manual of the indoor unit Verifying Fault code status Outdoor control Verifying Fault code status stored in board 1 Check that DIP switch SW803 is set to off 2 Record the states on or off of LED 800 to LED 804 Display mode 1 3 Press SW800 for at least 1 second The LED status changes to display mode 2 4 Since display mode 1 covers multiple faults with the same code display mode 2 must also be used to determine the final fault Use the status recorded for LED 800 to LED 804 in display mode 1 Item 2 above and combine it with the status for the same LED s in display mode 2 Item 3 above to determine the complete fault code using the chart below memory Outdoor control board 1 Check that DIP switch SW803 is set to on 2 Record the states on or off of LED 800 to LED 804 Display mode 1 3 Press SW800 for at least 1 second The LED status changes to display mode 2 4 Since display mode 1 covers multiple faults with the same code display mode 2 must also be used to determine the final fault Use the status recorded for LED 800 to LED 804 in display mode 1 Item 2 above and combine it with the status for the same LED s in display mode 2 Item 3 above to determine the complete fault code using the chart below NOTE An outside air temperature TO sensor error can be checked only when an error occurs
20. ee eee eens 22 Outdoor Unit Installation Manual ae 1 DIMENSION ly x Drain hole spe 0 5 12 amp 15 0 380 1 0 25 burring hole aio 7 9 200 2 4 60 S2 Air inlet B legs 3 port i Mounting bolt hole 0 5 12 0 7 17 U shape hole Air inlet Details of B legs ala port g 2 si M N 3 0 75 t i Aira outlet S Mounting bolt hole A 0 5 12 0 7 17 long hole 15 1 883 2 8 70 1 5 89 T A r Details of A legs 5 9 150 23 6 600 3 8 96 5 drain hole i na 7 3 5 88 burring hole 35 4 900 12 6 320 900 Refrigerant pipe 820 2 0 52 21 7 550 connecting port 20495 fare at liquid side n 1 2 30 Refrigerant pipe connecting port 0 6 15 9 flare at gas side Conduit hole 20 9 22 hole S S 8 EJ LJ Z Refrigerant piping hole o o d N 8 DI 5 e o 2 4 2 e DI Pes S g g La r2 Refrigerant QN x N piping hole 2 4 60 7 178 7 178 _ _ 7 178 Z SI 9 0 7 18 N Aol 2 7 68 20 4 518 3 9 99 0 5 12 2 5 64 3 3 83 0 3 7
21. h the following drain nipple and waterproof rubber cap and use the drain hose Inner diameter 0 6 16 mm sold on the market Also seal the screws securely with silicone material etc to prevent water from leaking Some conditions may cause condensation or dripping of water e When collectively draining discharged water completely use a drain pan C E5 CL SSS Waterproof rubber cap Drain nipple 5 Drain nipple Waterproof rubber cap B For Reference If a heating operation is to be continuously performed for a long time under the condition that the outdoor temperature is 32 F 0 C or lower draining defrosted water may be difficult due to the bottom plate freezing resulting in trouble with the cabinet or fan 411 Outdoor Unit _ Installation Manual 6 REFRIGERANT PIPING Piping connections are inside the front panel of the unit Flaring and the front panel and pipe cover needs to be 1 Cut the pipe with a pipe cutter removed before piping and wiring connections are Be sure to remove burrs that may cause a gas made leak 2 Insert the supplied flare nut into the pipe and then flare the pipe As the flaring sizes of R410A differ from those of refrigerant R22 the flare tools newly manufactured for R410A are recommended Piping can enter the outdoor unit from the back from the side or from the bottom as shown However the conventional tools B Y can
22. nal injuries Do not modify this unit by removing any of the safety guards or by by passing any of the safety interlock switches Do not touch the intake or aluminium fins of the outdoor unit Doing so may result in injury Tighten the flare nut with a torque wrench in the specified manner Excessive tightening of the flare nut may cause a crack in the flare nut after a long period which may result in refrigerant leakage Install the air conditioner securely in a location where the base can sustain the weight of the unit adequately If refrigerant gas has leaked during the installation work ventilate the room immediately If the leaked refrigerant gas comes in contact with fire noxious gas may be generated After the installation work confirm that refrigerant gas does not leak If refrigerant gas leaks into the room and flows near a fire source such as a cooking range noxious gas may be generated Electrical work must be performed by a qualified electrician in accordance with the NEC or local code Make sure the air conditioner uses an exclusive power supply An insufficient power supply capacity or inappropriate installation may cause fire Use only the specified wiring during the unit installation Ensure that all terminals are securely fixed so preventing any external forces having a negative effect on the terminals Outdoor Unit Installation Manual N WARNING When the air conditioner cannot cool or heat a room well c
23. nt durability may cause the outdoor unit to fall which may result in injury N CAUTION Do not install the outdoor unit in a location that is subject to combustible gas leaks Accumulation of combustible gas around the outdoor unit may cause a fire Install the outdoor unit in a location that meets the following conditions Awell ventilated location free from obstacles near the air inlets and air outlet Alocation that does not increase the operating noise or vibration of the outdoor unit A location that does not produce any drainage problems from discharged water Location with easy access to power Do not install the outdoor unit in the following location Alocation with a saline atmosphere coastal area or one that is full of sulfide gas hot spring area Special maintenance is required A location subject to oil vapor oily smoke or corrosive gases Alocation in which organic solvent is used Alocation where high frequency equipment including inverter equipment private power generator medical equipment and communication equipment is used Installation in such a location may cause malfunction of the air conditioner abnormal control or problems due to noise from such equipment A location in which the discharged air of the outdoor unit blows against the window of a neighboring house Alocation where the operating noise of the outdoor unit is transmitted When the outdoor unit is installe
24. onnection wires Input 4 49 749 power _ 49 49 su 208 230 V Remote 60 Hz E controller MUN d D 19 circuit breaker Outdoor unit Indoor unit ground e System interconnection wire size must be AWG12 Breaker must have a capacity specified in the following table All wiring must comply with local electric codes and NEC National Electric Code or CEC Canadian Electric Code Model RAV SP240 Power supply 208 230 V 60 Hz MCA 24 A MOCP MAX Fuse CB 40 A Breaker 25 A System interconnection wires AWG12 MCA Minimum Circuit Amps MOCP Maximum Over Protection Device Amps Connect the system interconnection wires indoor to outdoor to the identical terminal numbers on the terminal block of each unit Incorrect connection may cause a failure 1 With the front panel removed the electrical control box is exposed at the top right corner of the unit 2 Terminate the field wiring conduit if used at the conduit connection holes provided 3 Route the field power wires and the system interconnection wires as shown on the following pages Terminate the wires at field wiring terminal blocks located immediately below the electrical control box 14 14 EN Outdoor Unit Installation Manual Pr ee z zo cen System Field power supply 2 Remove the wire cover from back of the front pipe interconncection terminal block cover terminal blo
25. ontact the dealer from whom you purchased the air conditioner as refrigerant leakage is considered as the cause In the case of repair that requires refill of refrigerant ask service personnel about details of the repair The refrigerant used in the air conditioner is harmless Generally the refrigerant does not leak However if the refrigerant leaks in a room and a heater or stove burner in the room catches fire it may generate toxic gas When you ask service personnel for repairing refrigerant leakage confirm that the leakage portion has been completely repaired Do not install the air conditioner in a location that may be subjected to a risk of exposure to a combustible gas If a combustible gas leaks and becomes concentrated around the unit a fire may occur Install the refrigerant pipe securely during the installation work before operating the air conditioner If the compressor is operated with the valve open and without the refrigerant pipe the compressor sucks air and the refrigeration cycle is over pressurized which may cause a burst or injury When carrying out the pump down work shut down the compressor before disconnecting the refrigerant pipe Disconnecting the refrigerant pipe with the service valve left open and with the compressor still operating will cause air etc to be sucked in raising the pressure inside the refrigeration cycle to an abnormally high level and possibly resulting in rupturing injury etc N CAUTION
26. pon completion of pump down the unit close the valve and press SW801 for at least 1 second to stop operation 5 Turn off the power Pump down P C board switch SW801 Optional connector CN610 Special operation select switch N DANGER Be careful of electric shock because the P C board has an electrical current running through it 14POWER SAVE e Power save can be set by setting SW802 dip switch Procedure 1 Turn on the SW802 dip switch 2 to activate Power save Power save controls reducing compressor periodicity by approx 10 depending on the indoor unit heat exchanger temperature in heating operation SW802 CE Caio MIS Power save setting OLE All switches are OFF as factory default N CAUTION Do not touch SW802 dip switch 1 3 and 4 If any changes are made the unit may not work properly 22 22 EN EH99865401
27. tion Both lines need to be insulated Use a minimum 0 4 10 mm wall thickness Refrigerant charge Length of refrigerant pipe connected to indoor outdoor unit Additional refrigerant 16 5 98 5 5 30 m None 98 5 16471 Add 0 43 oz ft 40 g m of refrigerant for piping that exceeds 30 50 m 98 5 30 m up to 164 1 50 m Caution during addition of refrigerant Max amount of additional refrigerant is 1 8 Ibs 800 9 Charge the refrigerant accurately Overcharging may cause serious trouble with the compressor Minimum refrigerant pipe is 16 5 5 m This may cause a malfunction of the compressor or other devices Metering Device is an electronic EXV PMV in outdoor unit E Connecting power and control cables Field supplied The main power is supplied to the outdoor unit The field supplied connecting cables from the outdoor unit to the indoor unit consist for 4 wires and provides the power for the indoor unit as well as the communication signal between the outdoor and indoor unit e System interconnection wire size must be AWG12 Breaker must have a capacity specified in the following table All wiring must comply with local electric codes and NEC National Electric Code or CEC Canadian Electric Code Model RAV SP240 Power supply 208 230 V 60 Hz MCA 24 MOCP MAX Fuse CB 40A Breaker 25A System interconnection wires AWG1
28. us hazards which will result in severe personal injury or death WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage NOTE is used to highlight suggestions which will result in enhanced installation reliability or operation N WARNING Ask an authorized dealer or qualified installation professional to install maintain the air conditioner Perform installation work properly according to the Installation Manual Inappropriate installation may result in water leakage electric shock or fire Be sure to ground the equipment Improper grounding may cause an electric shock Do not connect ground wires to gas pipes water pipes lightning rods or ground wires for telephone wires Turn off the main power supply switch or breaker before attempting any electrical work and maintenance Make sure all power switches are off Failure to do so may cause electric shock Use an exclusive power circuit for the air conditioner Use the rated voltage When moving the air conditioner for installation to another place be very careful not to allow the specified refrigerant R410A to become mixed with any other gaseous body into the refrigeration cycle If air or any other gas mixes with the refrigerant the gas pressure in the refrigeration cycle will become abnormally high and it may result in the pipe bursting or perso
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