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V1C Users Manual

1. E 15 pE SI ce UU EE d E md Mu MI E MUS 16 The Turbo Fumon Se Ig siste RT 17 TlO SAVE FOSS uet epu E p pee IO eb pi esa des poene salan ce aspe es rupes 18 Tabl cESEIEATBR SEM 5 xuio utendo eee ibit oai etes 19 Tao Blow Ute LOB S CLOTS ood eee ta ule ee Irt tede losen ta aa pa delante tele 20 13 3 Oaer Fanc SE ooa oodd Crean et teat orit mtu ce Rein 21 TAa NS uice di ice dette ted aaa 22 TES AONE FUNC HONS ei a ane CE E E M Ee cesta duds b Mee das 22 Error DAS OVA c M 24 Remote control operation procedure standard fitting 27 Instructions of Unit Installation eeee eee e e e eere eere eere nnne nne 37 101 Trista ation MOUS co saa e Renee bees v ido M Res cu EUER Paene dM 37 10 2 Install of the cassette type indoor unit ssssssssnnn 38 10 5 ELECTI WITH oso tesoro lesa ties iet ees tan tesea Ei a echs 45 11 12 13 14 15 TOA Installation of panel 5er E Er EET ERSTER cee 46 10 5 Install of outdoor unit rm p p NETT 50 10 6 Products Blectrre Installatori orn 60 Testopetai isss decades sac eweistawdecestdeveatiedevedestuseweescendsassties 63 Opt nium operatiol a cies 65 Care and maintenance It should be done by professionals 66 Trouble iii 70 1 Names and functions of parts Indoor unit Drainage device built in Drains water removed from the room unit dur ing
2. n Refrigerant pipe 950 Decorated surface boards 890 Ceiling opening 840 Indoor unit 780 Gaps between hoisting screw rods Hoisting screw X 4 zi P E E e VY ds 7 680 Gaps between hoisting screw rods 840 Indoor unit 890 Ceiling openi ng 950 Decorated surface boards VICI 18 V1CI 30 VICI 45 VICI 24 VICI 36 Xx The drilling of holes in the ceiling must be done by the professional personnel Installation stands for main body of the unit FRA KS i Above 20 Fig 19 Notes The dimension for the ceiling openings with marks can be as large as 910mm But the overlapping sections of the ceiling and the decorated surface boards should be maintained at no less than 20mm 40 10 2 5 Main body of hoisting air conditioner La Nut supplied at scene di Gasket attachment 2 gt Insert S Hoisting stand in S Tighten double nuts Gasket anchor board attachment Fix the hoisting stand firmly hie the pasket timiiy Bolt of one of the angle of outlet pipe is fix on the angle of the drainage slot 7 d j A ae EN Center of the ceiling s qq ug ve ae opening b o 07077 04 gt lt Install cardboard d Ne P T A M Ao wi s Pd a gt 7 4 A E f B D Pd J f AA b T pa di ui BAR gt N de CS LOG fF d EA LE S ee
3. install an oll Gas Pipe trap m m EE EMO OGO Gm Gs Ge e we Indoor Unit Fig 29 10 5 11 Position and Method of Installing Wire Controller Oo One end of the control wire of the wired remote controller is connected to main board in the electric box of indoor unit it should be tightened by wire clamps while the other end should be connected to the wired controller The special control wire be used between the indoor unit and wired remote controller of which the length is 8 meters The material to be adopted for the control wire should be metallic substance The wired controller could not be disassembled and the control wire to be used for the wired controller should not be changed by users optionally The installation and maintenance should be carried out by the installer Firstly select an installation position According to the size of the control wire for the wired remote controller leave a recess or an embedded wire hole to bury the communication line If the control wire between the wired remote controller and the indoor unit is surface mounted use 1 metallic pipe and make matching recess in the wall refer to Fig 30 If concealed installation is adopted 17 metallic pipe can be used Refer to Fig 31 No matter if surface mounting or concealed mounting is selected it is required to drill 2 holes in the same level between which the distance shall be the same as the distance 60mm of
4. Table 6 The model selection recommend table for air switch and power cable Minimum Sectional Bere Minimum Sectional Area of Model d Area of Earth Wire Power Switch Supply Wire UIRS 12 VICI 12 UIRS 18 VICI 18 1 The power cable used in the unit is copper cable the working temperature should not exceed the specified value 2 If the power cable is longer than 15 meters please enlarge the cross section of power cable adequately in order to avoid the accident due to overload e Requirement for ground yx Air conditioner is the I class electric appliance thus please do conduct reliable grounding measure xx The yellow green two color wiring of air conditioner is grounding wire and cannot be used for other purposes It cannot be cut off and be fixed by screw otherwise it would cause electric shock yr The user must offer the reliable grounding terminal Please don t connect the grounding wire to the following places 1 Water pipe 2 Gas pipe Blowing pipe 4 Other places that professional personnel consider them unreliable The power cable communication wire connection between indoor and outdoor The section area of cables selected by users must not be smaller than the specifications show diagram The signal wire between indoor and outdoor unit shall be installed in the shielded bushing Schematic Diagram of Unit Line Connection 61 Unit Indoor UIRS 12 VICI 12 Power cord 3x2 5mm H
5. Enter Cancel Fan Mode Mode ha m pie ii v g i y id 9 w w 0 ww w wv ER V x ak rd VO nme Onn MEM CTS oS M d x 4 j Press ag in button Press Function button Press Enter Cancel button to turn off the quiet function into quiet function to turn on the type of quiet function Fig 17 Quiet function setting Note 1 During quiet function fan speed is un adjustable 2 When turning on auto quiet function the unit will enter quiet running state according to temperature difference between room temperature and setting temperature In this case fan speed is adjustable If temperature difference between room temperature and setting temperature 7 4 C fan will keep its current speed if 2 C lt temperature difference x3 C fan speed will be reduced by one grade but if it is at minimun grade it is un adjustable if temperature difference lt 1 C fan speed will be at minimun grade 3 In auto quiet mode fan speed can not be raised but reduced If high fan speed is manually adjusted auto quiet mode will quit 21 4 There is not auto quiet function in fan or dry mode Quiet off is default after power failure and then power recovery 5 If quite function is set turbo function will be canceled 7 14 Field Functions Under off state of the unit press Function and Timer buttons continuously for 5s to go to the debugging menu Press Mode button to adjust the setting items and A or V button to set the actu
6. The design of this unit conforms to the requirements of EN14511 standard 2 The air volume is measured at the relevant standard external static pressure 3 Cooling heating capacity stated above is measured under nominal working conditions corresponding to standard external static pressure The parameters are subject to change with the improvement of products in which case the values on nameplate shall prevail A WARNING e This appliance is not intended for use by persons including children with reduced physical sensory or capabilities or leak of experience and knowledge unless they have been given supervision on instruction concerning use of appliance by a person responsible for their safety e Children should be supervised to ensure that they do not play with the appliance This product must not be disposed together with the domestic waste This product has to be disposed at an authorized place for recycling of electrical and EE electronic appliances 72 O inventor Your conditions 6612990 236
7. Water lever E bu Polyethylene pipe a Bolt attachment Bolt attachment Fix the install cardboard Fig 20 1 The primary step for install the indoor unit Xx When attach the hoisting stand on hoisting screw do use nut and gasket individually at the upper and lower of the hoisting stand to fix it The use of gasket anchor board can prevent gasket break off 2 Use install cardboard xx Please refer to the install cardboard about the dimension of ceiling opening Xx The central mark of the ceiling opening is marked on the install cardboard xx Install the install cardboard on the unit by bolt 3 piece and fix the angle of the drainage pipe at the outlet vent by bolt 3 Adjust the unit to the suitable install place 4 Check if the unit is horizontal X Inner drainage pump and bobber switch are included in the indoor unit check if 4 angle of every unit are horizontal by water lever If the unit is slant toward the opposite of the coagulate water flow there may be malfunction of the bobber switch and lead water drop 5 Backout the gasket anchor board used to prevent gasket break off and tighten the nut on it 6 Backout the install cardboard N Note e Please do tighten the nuts and bolts to prevent air conditioner break off 41 10 2 6 Connect the refrigerant pipe Selection of Connecting Pipe The refrigerant is R410A GWP 2020 ODP 0 Table 3 refrigerant pipe selecting Amount of Additional Refrigerant to
8. 24 C for DRY mode and 20 C for HEAT mode C a oe SLEEP AIR LIGHT HUMID LM NM M TIMER QN TIMER OFF ANON SAVE ur ON OFF 1 Plug in Press ON OFF button then air conditioner is turned on 2 According to room temp micro computer can automatically set r Ge OW operation mode so as for best effect 32 FAN mode operation procedure Connect the unit to power supply Press the ON OFF key Press the mode key to select the FAN mode The unit shall operate under FAN mode Press the FAN key to select from high medium and low speed L MEL SWING FAN AUTO FAN a cs 1 Plug in Press ON OFF button then air conditioner is turned on 2 Press the mode key and select thi ie mode 33 TIMER operation procedure gt At stopping press TIMER ON button set ON TIME in range of 0 to 24 hour to start theunit automatically At operating press TIMER OFF button set OFF TIME in range of 0 to 24 hour to stop the unit automatically 34 SLEEP mode operation procedure When the unit is cooling or drying if SLEEP operation is set TEMP would increase 1 C in 1 hour and 2 C in 2 hours Indoor fan motor runs at low speed When the unit is heating if SLEEP operation is set TEMP would decrease 1 C in 1 hour and 2 C in 2 hours Indoor fan motor runs at low speed 4 Press FAN button set fan speed 3 Press SWING
9. ET FL E Test hole cover Drain vent for repair use plastic ree Mg stopper is included drain the water A J in waterspout by this outlet vent Test hole Mssespa0nS 1 Mmiti ng water from the rest hole ZEIT Plastic water pot The length of the pipe should be about 100mm N lt Immiting water from the outlet vent terminal e Warning Before obtaining access to terminals all supply circuits must be disconnected 10 3 Electric wiring 1 All field supplied parts and materials must conform to local laws and regulations 2 For electric wiring refer to WIRING DIAGRAM attached to the unit body 3 All wiring must be performed by a skilled technician 4 A circuit breaker capable of shutting down power supply to the entire system and which have at least 3 mm contact separation in each pole must be install in the fixed wiring 5 Earth properly 6 Wiring must conform to national laws and regulations 7 The fixed wiring must be installed with a protector with no more that 30 mA leakage current 8 If the supply cord is damaged it must be replaced by the manufacturer or its service agents or a similar qualified person in order to avoid a hazard Caution Take great care when carrying out the following connections so as to avoid malfunction of the air conditioning unit because of electromagnetic interference 1 The signal line of the wire controller must be separated from the power line and the conne
10. Lock Function Upon startup of the unit without malfunction or under off state of the unit press A and V buttons at the same time for 5s till the wired controller enters lock state In this case LCD displays ig After that repress these two buttons at the same time for 5s to quit lock state Under lock state any other buttons won t give any response to the press 7 15 2 Memory Function Memory switchover Under off state of the unit press Mode and A buttons at the same time for 5s to switch memory modes During setting memory mode Memory will be displayed If this function is not set the unit will be under off state after power failure and then power recovery Memory recovery If memory mode has been set for wired controller the wired controller after power failure will resume its original running state upon power recovery 22 Note It will take about 5 seconds to save all the information therefore please do not cut down the power at this time or it may fails 7 15 3 Enquiry of Outdoor Ambient Temperature Under on or off state of the unit press Enter Cancel button for 5s outdoor ambient temperature will be displayed at temperature displaying location after a sound of click This enquiry state will quit by pressing any button If there is not any operation for 20s it will automatically quit Note 1 This function will be shielded after energization of 12hr for some models of the units without outdoor ambient sensors Please
11. Setting Note 1 In Auto running mode with save function on the unit will be forcibly quit Auto running Mode and change to current operation mode After setting of save sleep function will be canceled 2 In save mode if Function button is pressed or there is not any operation within 5s after the last button operation the system will be quit from save function setting and current data won t be 18 memorized 3 After power failure and then recovery save function setting will be memorized 4 The lower limited value in cooling mode is 16 C and the upper limited value in heating mode is 30 C 5 After save setting if the setting temperature is out of the range in the mode the limited value will prevail 7 11 E HEATER Setting E HEATER In the heating mode E heater is allowed to be turned on for improvement of efficiency If heating mode is turned on by button operation auxiliary electric heating function will be automatically turned on Press Function button in heating mode to go to the auxiliary electric heating function the E HEATER blinking and press Enter cancel button to turn on this function In this case the E HEATER will be displayed which means E heater is allowed to be turned on If auxiliary electric heating function is on press Function button to confirm or press Enter cancel button to cancel In this case E HEATER won t be displayed which means E heater is prohibited to be turned on The setting of this func
12. We Flushing Dirt dust or other mm Flushing extraneous material gets into pipes from outside Leak from soldered area Use the proper materials copper pipe solder etc Adhere strictly to standard soldering work practice Air tight test in Leak from flared area Adhere strictly to standard flaring work practice Leak from flange area Adhere strictly to standard flange connection work parctice TEA The 3 principles of refrigerant piping Air gh in inside Make sure there is no moisture Make sure there is no dirt inside the Make sure the refrigerant does not inside the pipes pipe leak out M vt 146 1145 10 5 5 Pipe Preparation Cutting Tool Right wrong x a 1 Pipe amp Electrical Wire Cutting 90 Sloped Cut Rough Cut 90 gt Z Z 1 Use cutting tools easily found in the market 2 Measure precisely both outer amp inter pipes 3 The length of the pipe should be a little 5 longer than the actual measured value 4 The wire should be 1 5m longer than the refrigerant tube Refrigerant Tube 2 Reaming Reamer 1 Clean the inside of the inner refrigerant tube 2 While reaming the tube end must be on the top of the reamer to prevent f Up side any dust going back into the tube down position 3 Flaring the Pipe End Flare both ends of the pipe with flaring kits by fitting the flare nut on the pipe before flaring Set the die on the
13. by applying soapsuds on every joint and then inspect carefully After the check wipe them off completely Cover the indoor unit joint with pipe insulation and four plastic bands to prevent condensing at joints 10 5 8 Liquid Pipe and Drain Pipe If the outdoor unit is installed lower than the indoor unit See Fig 26 1 A drain pipe should be above ground and Ecalcd the end of the pipe does not dip into water All pipes must be restrained to the wall by saddles 2 Taping pipes must be done from bottom to top TAT 3 All pipes are bound together by tape and restrained to wall by saddles If the outdoor unit is installed higher than the indoor unit See Fig 27 1 Taping should be done from lower to the upper part 2 All pipes are bound and taped together and also should be trapped to prevent water from returning to the room See Fig 27 3 Restraint all pipes to the wall with saddles 54 10 5 9 Installation of Protective Layer of Connecting Pipe To avoid generation of condensate on the connecting pipe and avoid leakage the big pipe and the small pipe of the connecting pipe must be covered by thermal insulation materials be bundled by adhesive tape and be isolated from air M ANES ee 3M 2 The joint connecting to the indoor unit must be wrapped by thermal insulation material There shall be no gap between the connecting pipe joint and the wall of the indoor unit Refer to the fi
14. can realize quick cooling or heating so that room temperature can quickly approach setting temperature In cooling or heating mode press Function button till the unit enters TURBO function and then press Enter cancel button to turn on TURBO function During TURBO function press Function button till the unit enters TURBO function and then press Enter cancel button to cancel TURBO function TURBO function setting is shown in Fig 13 e Ementas Fan Mode ligga gt w sl e Funetian T Ter nl Function v Tima Gng 7 hs AF pn 7 i rn d Turn on the unil without Press Function button Press Enter Cancel button turning on Turbo function into turbo function to turn on turbo function 1 Mode v v v Ono v TM A AP Ar Press Function button Press Enter Cancel button into turbo function to turn off turbo function Fig 13 Turbo Function Setting Note 1 TURBO function will be turned off after power failure and then recovery In dry fan and auto mode TURBO function can not be set and TURBO mark won t be displayed 2 TURBO function will be automatically canceled after setting of quiet function 17 7 10 SAVE Function Setting Energy Saving Function Energy saving can make the air conditioner runs in a smaller temperature range by setting lower limited value of setting temperature in cooling or dry mode and upper limited value in heating mode Energy Saving Setting for Cooling Under on
15. insert anything into the unit air outlet If there is something abnormal eg burning smell cut off the power immeditely and con tact service center If room air is stuffy air the room by opening door and window for a while but please close the curtains when operating the unit to prevent conditioned air from leaking Warning Check whether the installed stand is still firm enough after the unit has operated for a long time If a worn out stand is left unfixed the unit may topple and do harm Do not stand on the outdoor unit or put anything on it or you may fall down or peopl aa may get hurt by the falling things e Do not spray any paint or pesticide on the unit or it may cause fire Never use wrong ampere rating fire Use of iron wire or copper wire may cause the unit to break down or cause fire iron wire NOTE Children should be supervised to ensure that they do not play with the appliance Warning Do not check or repair during the unit is Do not use other operating It is very dangerous heating equip ment near the air conditioner It will affect the cooling perfor mance Never place objects near the air intake and the air outlet of the unit It may affect performance or stop operation of the unit Do not splash water directly to indoor unit Do not bang the remote controller and do not It may cause trouble or electric shock press the button of the remote controller with pointed object or t
16. liquid insecticide which may cause discoloring or warping f the air flow flap is very dirty you may remove it to clean as shown below 1 Detach the flap clean with soft cloth 2 Fix the flap Set the ribs on the sides of the air outlet to the slit of the flap and then screw together to fix the flap 1 C heck to make sure no objects obstructing the intake and outlets parts on both the indoor and outdoor units 2 Check to make sure ground wire is connected and that itis not damaged 3 Check to make sure air filter has been cleaned 4 Turn on the power 6 hours before starting the air 1 Clean the filter and the body of the unit 2 Turn off power 3 Clear outdoor unit of dust 4 1f there is any rust in the outdoor unit this should be painted over to prevent the rust from spreading The operation in detach and fix the flap is not including the 12K type 69 13 Trouble shooting Warning e n case of something abnormal such as bad smell shut of the power switch immediately and contact service center e Do not repair the air conditioner by yourself because wrong repair may cause fire please contact service center to do it for you Check item shown below before contacting service center symptom cause Corrective measures Phase opposition or fuse broken Change phase or replace fuse Power off It will restart when power is on The system does not Loose plug Put the plug into place operate at all Batter
17. refer to Instruction for details 2 If malfunction of outdoor ambient sensor occurs this function will be shielded in 12hr 7 15 4 Selection of Centigrade and Fahrenheit Under off state of the unit press Mode and W at the same time for 5s the displayer panel will switch between Centigrade and Fahrenheit 7 15 5 Master Slave Wired Controller Setting Under the off status of the unit press Enter cancel and Mode at the same time for 5 seconds to go to the master slave wired controller setting interface and then press A or V to make the adjustment In this case only in the temperature display is there numbers displayed 01 for the master wired controller and 02 for the slave wired controller After that press Enter cancel to save the setting and quit this interface If there is not any operation in 20 seconds on this interface after the last button press the system will quit automatically to the normal off status without saving the current setting Note If there is only one wired controller it only can be set as the master otherwise the unit won t run normally 7 15 6 Gate control Display Function If there is gate control system the unit can run after plugging in card and stop after pulling out the card If memory function is on the unit after plugging out of card and then plugging in will run according to the memory If the card is not plugged in or poor plugging the mark 1 s will show and the unit will be t
18. room Do not use or store flammable explosive poisonous or other dangerous substances beside the air conditioner In case of trouble e g burnt smell please immediately cut off the main power of air conditioner unit Keep air flow to avoid shortage of oxygen in the room Never insert your finger or any objects into air outlet and inlet grill Never plug or unplug the power cable directly to start or stop the air conditioning unit Please take constant care to check if the mounting rack is damaged after long use o o Never modify the air conditioner Please contact the dealer or professional installation workers for repair or relocation of the air conditioner The appliance shall not be installed in the laundry 9 Before installation please check the power supply for compliance with the ratings on nameplate Check the power safety as well Operating by professional Before use please check and confirm if the cables drainage pipes and pipelines are correctly connected hence to eliminate the risk of water leakage refrigerant leakage electric shock or fire Main power must be securely earthed to ensure effective grounding of air conditioner unit and avoid the risk of electric shock Please do not connect the earthing cable to coal gas pipe water pipe lightning rod or telephone line Once started the air conditioner shall not be stopped at least after 5 minutes or longer otherwise the oil re
19. shall be installed in accordance with relative wiring regulations Gas pipe If there is electrical leakage accidently from air conditioner it is easy to cause fire or explosion 37 10 2 Install of the cassette type indoor unit 10 2 1 Schematic diagram of installation space e CN pe ae E MN pe FE P Pb lt 3 d 4 E Pd Pa gt PA P E A N Pa Unit mm Pa Pu a P P d a F V1CI 12 VICI 18 V1ICI 24 V1CI 30 V1CI 36 VICI 45 10 2 2 Select install location of the indoor unit l N Obstruct should put away from the intake or outlet vent of the indoor unit so that the airflow can be blown though all the room Make sure that the installation had accord with the requirement of the schematic diagram of installation spaces Select the place where can stand 4 times of the weight of the indoor unit and would not increase the operating noise and oscillate The horizontally of the installation place should be guaranteed Select the place where is easy to drain out the condensate water and connect with outdoor unit Make sure that there are enough space for care and maintenance Make sure that the height between the indoor unit and ground is above 1800mm When installing the suspender bolt check if the install place can stand the weight 4 times of the unit s If not reinforce before installation Refer to the install cardboard and find where should be reinf
20. shielded cable or double twisted cable as the signal wire outdoor unit 3 Pass the cable though rubber ring 4 Connect the power cable to the terminal and earthing screws marked L1 L2 L3 amp N 5 Use cable fastener to bundle and fix the cable 10 6 Products Electric Installation Caution The unit should be reliably earthed if it is improperly earthed that may cause electric shock or fire Wiring layout x Installation should be conducted by National Wiring Regulation x The rated voltage and exclusive power supply must be adopted for the air conditioners yx The power cable should be reliable and fixed in order to avoid the wiring terminal be suffered from force And do not drag the power cable forcibly x The wire diameter of power cable should be large enough if power cable and connection wire be damaged it should be replaced by the exclusive cable x All electric installation must be done by professional personnel according to local law 60 regulation and this manual x It should be reliably earthed and it should be connected to the special earth device the installation work should be operated by the professional yw The creepage protecting switch and air switch must be installed x Air switch should have the thermal dropout and magnetic dropout function in order to avoid the short circuit and overload x The on spot connection should refer to the circuit diagram which is stuck on the unit body
21. state and in cooling or dry mode of the unit press Function button into energy saving function with SAVE blinking Press A or V button to adjust lower limited value of setting temperature in cooing mode After that press Enter Cancel button to turn on energy saving function for cooling Energy Saving Setting for Heating Under on state and in heating mode of the unit press Function button into energy saving function with SAVE blinking Press Mode button into energy saving function for heating and then press A or V button to adjust upper limited value of setting temperature in heating mode After that press Enter Cancel button to turn on energy saving function for heating After energy saving function is turned on press Function button into energy saving function and press Enter cancel to cancel this function The energy saving setting is shown in the Fig 14 Ub m F Timer ONO e Fi Y On Ott Faden Y x c ks FJ i Turn on the unit without p E ti i butt turning on sawe function Pm MG en H am into cooling save function A e Press Aor V button to change the lower limit of cooling Enter Fan EnterCancel Fan Maa I I wo wow ih E S ex i Fenton i ax d aka y Sd em prast Enter Cancel Button Press dor V Press Mode button switch to turn on air function button to change the upper to heating save function limit of heating Fig 14 Energy Saving
22. the controller which are not available to this air conditioner will not be described below Liquid crystal displayer It shows all set contents SLEEP button Press this button to set or concel SLEEP operation TIMER OFF button At operating press TIMER OFF button set OFF TIME in range of 0 to 24 hour to stop the unit automatically TIMER ON button At stopping press TIMER ON button set ON TIME in range of 0 to 24 hour to start the unit automatically Operate on unmentioned buttons would not impact on the normal use 28 COOL mode operation procedure According to difference between room temp and set temp microcomputer can control cooling on or not If room temp is higher than set temp compressor runs at COOL mode If room temp is lower than set temp compressor stops and only indoor fan motor runs Set TEMP should be in range of 16 C to 30 C 4 Press FAN button set fan speed 3 Press SWING button the louvers start to ro CP ED tate automatically and stop when repress 5 Press TEMP but ton set suitable TEMP TIMER ON TIMER OFF ANIDN SAVE 2 Press MODE button set R operatio mode 1 Plugin press ON OFF button then air conditioner is turned on 29 HEAT mode operation procedure If room temp is lower than set temp compressor runs at HE AT mode If room temp is higher than set temp compressor and outdoor fan motor stop only indoor fan mot
23. wall When wrapping thermal insulation tape the later circle of tape must cover half of the front circle of tape Refer to the figure on right 3 Wrapped pipe must be fixed to wall using pipe clamps 10 5 10 Cautions in Connecting Pipes The layout of connecting pipeline shall comply with the following principles according to actual situation 1 The length of connecting pipe shall be short as much as possible and it is better to restrain the length within 5m 2 Shorten the height difference between indoor and outdoor unit as much as possible 3 Reduce the height difference between indoor and outdoor units as it might be 4 Lessen the quantity of elbows as much as possible 5 When the length of connecting pipe exceeds 20m check if the lubricant of the system is enough If not add some in the oil trap properly 6 Refrigerants volume inside the outdoor unit suit for connecting pipe with 7m If connecting pipe shall be prolonged refrigerants shall be added accordingly Every 1m prolonged the added volume of refrigerant can refer to Table 3 The allowable max length of pipe can be also found in the table 56 7 When installing the unit if difference in height between indoor and outdoor unit exceeds 10m one oil loop is required every 6m Please refer to Fig 29for layout of pipeline Liquid pipe thin pipe EE Gas pipe heavy pipe Outdoor i Unit s iig i Liquid Gas Pipe Pipe i Uf i A 4 6m Oil trap of MEME
24. where there is interference of electromagnetism signal line and wiring communication of wired controller must be shielded by twisted pair lines 10 7 Instruction to Operation 7 On Off Press On Off button to turn on the unit Repress this button to turn off the unit Note The state shown in Fig 5 indicates off state of the unit after energization The state shown in Fig 6 indicates on state of the unit after energization Enter Cancel A Fan Mode Enter Cancel A Fan Mode Function v Timer On Off Function v Timer On Oft X A XY Fig 5 Off state of the unit Fig 6 On state of the unit 7 2 Mode Setting Under on state of the unit press Mode button to switch the operation modes as the following sequence Auto Cooling Dry L4 Fan A 2 A 4 oe eo F Function v Timer On Off J Enter Cancel Fan Mode 11 7 3 Temperature Setting Press A or W button to increase or decrease of setting temperature under on state of the unit If press either of them continuously temperature will be increased or decreased by 1 C every 0 5s In Cooling Dry Fan and Heating mode temperature setting range is 16 C 30 C In Auto mode the setting temperature 1s un adjustable As shown in Fig 7 V X 7 4 Fan Speed Setting Press Fan button fan speed of indoor unit will change as below As shown in Fig 8 A Fan Mode w WZ Function v Timer On Off T J Fig 8 12 7 5 Swing Control Functio
25. 3 mm shall be installed in the fixed line 2 Connection of single wire 1 Use wire stripper to strip the insulation layer 25mm long from the end of the single wire 2 Remove the screw at the terminal board of the air conditioning unit 3 User pliers to bend the end of the single wire so that a loop matching the screw size is formed 4 Put the screw through the loop of the single wire and fix the loop at the terminal board A single wire B Multiple twisted wire oiling Soe terminal insulation gf layer 3 Connection of multiple twisted wires wwgZ 1 Use wire stripper to strip the insulation layer 10mm long from the end of the multiple twisted wires 2 Remove the screw at the terminal board of the air conditioning unit 3 Use crimping pliers to connect a terminal matching the size of the screw at the end of the multiple twisted wires 4 Put the screw through the terminal of the multiple twisted wires and fix the terminal at the terminal board Warning 1 If the power supply flexible line or the signal line of the equipment is damaged only use special flexible line to replace it 2 Before connecting lines read the voltages of the relevant parts on the nameplate Then carry out line connection according to the schematic diagram 59 3 The air conditioning unit shall have special power supply line which shall be equipped with electricity leakage switch and air switch so as to deal with overload co
26. AIR C 0 Di Models V1Cl 12 V1Cl 18 V1Cl 24 V1Cl 30 V1Cl 36 V1Cl 45 Cassette Type Air Conditioner With Wire Controller Owner s Manual 3 inventor Your conditions Thank you for choosing INVENTOR air conditioning system For correct use of this unit please read this manual carefully and keep it for future reference pe SAL CI de 10 Contents Names and functions of parts eee e ecce ecce eene eee eee e e tette ettet ettet eese ee 1 Safety COMSIGeratiOMs T 2 lr geli a ri A Rr M 6 Displaying Pant sasssa ar ETENEE 7 41 LED Display of Wired Controller t Cr ky play a 7 4 2 Instruction toL CD DISplay ee eic ese aaa a pese s pae nep peas ces vae a A Sa 8 lini pe R E 9 SJ 2SHKScteett of Buttons assueta snakka edt tata coude che aetas anda Forma ds Cfi aud 9 35 2 Instruction to Function of Buttons uci a kaka td P roe potere cada 9 Installation of Wired Controller ecce eere eene eee 0 10 Instruction to Op ration eios unra aan 11 FER On O PEE 11 ke Mode SGU reris a ga elites aedi eds 11 i Temperature Se IB os eter t lala 12 Tet PAM S Peed DEIN neue Co bte etes EUR V tea t LU M Pe DN E LEE 12 7 5 SWE ONTO BANN ao ed m qe toe Pers soia n tm a RU meade na 13 TO Bion derctiiutee eae OE PO 14 Te Ait Exchange SE acess sansa a p
27. Be Filled For Extra Length of Pipe Max Height Difference between Indoor Unit and Outdoor Unit m UIRS 12 VICI 12 UIRS 18 VICI 18 UIRS 24 VICI 24 UIRS 30 V1CI 30 UIRS 36 VICI 36 UIRT 36 V1CI 36 UIRS 45 V1CI 45 UIRT 45 V1CI 45 Note 1 The standard pipe length is 5m When the length L of the connecting pipe is less than or equals 7m there is no need to add refrigerant If the connecting pipe is longer than 7m it is required to add refrigerant in the above table the amounts of refrigerant to be added for the models are listed for each additional meter of pipe length 2 The pipe wall thickness shall be 0 5 1 0mm and the pipe wall shall be able to withstand the pressure of 6 0MPa 3 The longer the connecting pipe the lower the cooling effect and the heating effect 42 7 Smear freeze motoroil Nw here A Median sponge attachment Q entwine the wiring interface P with seal mat P PA Torque wrench E l RB d Heat preservation ee p sheath of liquid inlet KX x tube attachment for Ke liquid tube OO P JI ur Heat preservation va ps Spanner a sheath of gas collection ub Gas collection tube Ube attachment for Le ae gas tube Liquid inlet tube Wiring interface Fig 3 Flare nut Fig 21 xx When connect the pipe to the unit or backout it from the unit please do use both spanner and torque wrench As shown in Fig 21 yx When connect smear both inside and
28. O7RN F Power cord 3x1 0mm H05V V F 3 Communication Cords UIRS 18 VICI 18 Power cord 3x4 0mm HO7RN F Z Power cord 3x1 0mm H05V V F 3 Communication Cords UIRS 24 VICI 24 Power cord 3x4 0mm HO7RN F Power cord 3x1 5mm H05V V F Communication Cords UIRS 30 V1CI 30 UIRS 36 V1CI 36 UIRS 45 V1CI 45 Power cord 3x6 0mm HO7RN F Power cord 3x1 5mm H05V V F S Communication Cords UIRT 36 t V1CI 36 UIRT 45 V1CI 45 Power cord 5x 6 0mm HO7RN F Power cord 3x1 5mm H05V V F 3 Communication Cords 62 Test operation 11 1 Prepare for test 1 Do not turn on the power switch before all installation is finished 2 Connect wires correctly and firmly 3 Open the check valve 4 Remove all dust 11 2 Testing 1 Turn on the power switch and press ON OFF button 2 Press MODE button select COOL HEAT FAN etc to test whether it operates normally 11 3 Emergency operation When the batteries fail or when the remote controller is missing operate as shown below On stopping you can press the AUTO button on cover NO I until it is in AUTO mode The cover NO II is the part of the panel As the picture below The air conditioner select from COOL HEAT DRY FAN modes automatically On operating press the AUTO button the air conditioner will stop Note The TEST button on the cover No II is specially for testing the air conditioner When pressing it the air conditioner will be for
29. OMe Function F Timar Ouf z WS zi i E P Aj turning on blow function Inia blow funchon to turn on blow function F Fan Moda dr e A s LA Www w w Wow ow v FunEtian Timer ORO FE Ww Timer Omm x J Press Enter Cancel button Press Function button to turn off blow function inta blow function Fig 16 Blow function setting Note 1 After setting BLOW function turn off the unit by pressing On Off button on remote controller indoor fan will run at low fan speed for 10 min BLOW shows Meanwhile if BLOW function is canceled indoor fan will be turned off directly 2 There is not BLOW function in fan or heating mode 20 7 13 Quiet Function Setting Quiet function consists of two kinds QUIET and AUTO QUIET Press Function button till the unit enters quiet function setting state Quiet or Auto Quiet mark blinks In this case pressA or V button to switch between Quiet and Auto Quiet and then press Enter cancel button to turn on this function In quiet mode press Function button till the unit enters quiet function In this case Quiet or Auto Quiet icon blinks and then press Enter cancel button to cancel this function Quiet function setting is shown in Fig 17 Mcoo SS Ta uel A ka i Mv S he J4 v ox ox m4 amp amp x 4 E s j Turn on the unit without Press Function button Press A or V turning on quiet function into quiet function button switch to auto quiet function
30. Pd T drain hose to insulate heat d xx Heat insulation should be done to AY V indoor drain hose l l SETEN RE e Note of drainage raising pipe yr The install height of the drain raising pipe should less than 280mm yr The drain raising pipe should form a upright angle with the unit and distance to unit should not beyond 300mm PIII III III LIII a aa a a Ro z PED Path Within 300mm 1 1 5m Hanger bracket Within 280mm eee aa Gee Drainage hose D 74 attachment li Drainage raising pipe li inc 5 PE Within 500mm 7 220mm nrimn 1 i hu QII Ceiling Clamp Cattachment 2 Instruction xx The slant gradient of the attached OES Drain hose attachment C mg E drain hose should be within 75mm Em iz E so that the drain hole doesn t has to nz E E A i o endure the unnecessary outside F1 E TS 7S force xx Please install the drain hose according to the following process if several drain hoses join together 44 _T tie in join drain hose Abovel00mm uL n Fw af OOL The specs of the selected join drain hose should fits the running capacity of the unit yx Check the smoothness of drain after installation yw Check the drain state by immitting 600cc water slowly from the outlet vent or test hole yx Check the drain in the state of refrigerating after installation of the electric circuit Way of immiting Drain hose
31. Setting Sleep on Press Function button under on state of the unit into sleep function and then press Enter cancel button to turn on sleeping function Sleep off During sleep on state press Function button to go to the sleep function and then press Enter cancel button to turn off this function Sleep setting is shown as Fig 12 Enievtance Fan Minds d vo ow A ul i 7 n j Function v Timar Cam m om Y T avom Fosciion v ha Ls P ke p p g d ES oe F Turn on the unit without Press Function button Press Enter Cancel button turning on sleep function into sleep function to turn on sleep function Enteric i hi be ww Nw E Funelien v x ono pr X Ter OnO e Le Press Enter Cancel button Press Function button to turn off sleep function into sleep function Fig 12 Sleep setting Sleep setting is clear after power failure and then power recovery There is not sleep function in fan and auto mode Note In cooling and dry mode if the unit with sleep function has run for 1 hour the preset temperature will be increased by 1 C and 1 C in another 1 hour After that the unit will run at this temperature In heating mode if the unit with sleep function has run for 1 hour the preset temperature will be decreased by 1 C and 1 C in another 1 hour After that the unit will run at this temperature 16 7 9 Turbo Function Setting TURBO function The unit at high fun speed
32. al value 7 14 1 Ambient Temperature Sensor Setting In field setting mode press Mode button to adjust the temperature displayed location displaying 00 and press A or V button to adjust setting state at timer displayed location There are 3 types for selection 1 Indoor ambient temperature is that at return air inlet 01 is displayed at timer displayed location 2 Indoor ambient temperature is that at the place of screen 02 is displayed at timer displayed location 3 Return air inlet temperature sensor shall be selected for cooling dry and fan modes and wired controller temperature sensor 03 is displayed at timer displayed location shall be selected for heating and auto modes 7 14 2 Three Grades of Speed for Indoor Fan In field setting mode press Mode button to adjust the temperature displayed location displaying 01 and press A or V button to adjust setting state at timer displayed location There are 2 types for selection 1 3 low grades LCD displays 01 2 3 high grades LCD displays 02 Three low grades indicate high medium and low grades and 3 high grades indicate super high high and medium grades Press Enter Cancel button to save the setting and quit after setting If there is not any operation within 20s after the system responds to the last button operation in this interface the system will quit this menu and display normal off state meanwhile current setting won t be saved 7 15 Other Functions 7 15 1
33. ation panel to the piping position of the indoor unit as shown in Fig 22 eInstall the decoration panel 1 Hang the latch which is located on the opposite side of the swing flap motor on the panel temporarily to the hook of the indoor unit 2 Positions 2 Temporarily hang the remaining 2 latches to the hooks on the sides of the indoor unit Be careful not to let the swing motor lead wire get caught in the sealing material Oo Screw all 4 hexagon head screws located right beneath the latches in approximately 15mm Panel will rise 4 Adjust the panel by turning it to the arrowed direction in Fig 22 so that the ceiling opening is completely covered ON Tighten the screws until the thickness of the sealing material between the panel and the indoor unit 46 body is reduced to 5 8 mm 1 Hook Latch i E c Piping ps sition 2 DN A JER Am Fee X ye i a V1 i L Lei dU r1 t 1 A 4 h ro i Ll ET 1 1 2 r dt 3 QD j j j i S 1 Swing flap moter 2 f Y eo 9 Im 3 up _ gt d u Fa mah Sealing material Se z Y Ceiling PELA S Hmm rt Th Air outlet Panel Fig 22 Precautions 1 Improper screwing of the screws may cause the troubles shown in Fig 23 Air leak Air leak from ceiling A IIIA AD d Contamination dew condensation dew dripping Fig 23 2 If gap is s
34. button the louvers start to rotate automatically and stop when repress SLEEP button Press itto set SLEEP operation 5 Press TEMP but ton set suitable TEMP A Press MODE button set il or EF op eration mode 1 Plug in press ON OFF button then air conditioner is turned on 35 How to inser t batteries 1 Remove the cover from the back of the remote control ler 2 Insert the two batteries Two AAA dry cell batteries and press but ton ACL 3 Re attach the cover Note Don t confuse the new and worn or different batteries Remove batteries when not in usefor a long time a The remote control signal can be received at a distance of up to about 10m 2in ertthe AAA dry cell batteries Remove the cover 3 Re attach the cover 36 10 Instructions of Unit Installation 10 1 Installation notes The air conditioner must be firmly installed and 3 4 liability checks must be done every year Avoid place whthin easy reach of young children Avoid other heat sources or dircect sun light Install indoor unit away from TV set or radio Avoid where inflammable gas is likely to leak e Atsalty coastal areas or special areas such as the vicinity of a sulphurous hot spring please contact dealer before installation to make sure it is safe to use the unit Not to be installed in laundries s Installation and transportation of the unit must be done by skilled pers
35. ced to operate or stop Do not press it when air conditioner is in normal operation 63 For the following items take special care during construction and check after installation is finished Does the power supply voltage correspond The unit may malfunction or the components to that shown on the nameplate burn out The unit may malfunction or the components Are wiring and piping correct burn out Is the unit safely grounded Risk of electric leakage The unit may malfunction or the components Is wiring size according to specifications burn out Is something blocking the air outlet or m It may result in insufficient cooling intake of either the indoor or outdoor unit Have records of refrigerant piping length Volume of refrigerant change in the system is not and additional refrigerant change been clear made Note to the installer Be sure to instruct the customer how to operate the system and show him her the attached operation manual Be sure the electric supply that user applies is beyond the bounds of tolerances 10 4 1 Hz The ambient temperature should be at 5 40 C and the humidity is 30965 9596 Transport storage temperature should be at 25 55 C and for short period not exceeding 24h at up to 70 C The installation altitude is beyond the height of 1000m 64 11 Optimum operation Adjust the room temperature properly for a comfortable environment Water may drop from the indoor unit w
36. cooling Air flow flap at air outlet Refrigerant piping connection electric wire a Refrigerant pipe The built in air filter Remote controller removes dust and dirt Air intake grille Outdoor unit Air outlet RI HP e E Air intake E rx Indoor Unit Outdoor Unit V1CI 12 UIRS 12 V1CI 18 UIRS 18 V1CI 24 UIRS 24 V1CI 30 UIRS 30 VICI 36 UIRT 36 VICIS UIRTAS 2 Safety Considerations Please read this manual carefully before use and operate correctly as instructed in the manual You are specially warned to note the two symbols below WARNING A symbol indicating that improper operation might cause human death or severe injury R WARNING A symbol indicating that improper operation might cause human property damage This unit shall be used in offices restaurants residences or similar places WARNING Please seek an authorized repair station for installation work Improper installation might cause water leakage electric shock or fire Please install at a place strong enough to support the weight of air conditioner unit If not the air conditioner unit might fall down and cause human injury or death To ensure proper drainage the drainage pipe shall be correctly installed according to installation instructions Take proper measures for heat preservation to prevent condensing Improper installation of pipes might cause leakage and wet the articles in the
37. cting line signal wire between the indoor unit and the outdoor unit 2 In case the unit is installed in a place vulnerable by electromagnetic interference it is better to use shielded cable or double twisted cable as the signal wire 45 10 3 1 Wiring of the indoor unit Remove the control box lid pull the wires inside through rubber bush and wiring according to the WIRING DIAGRAM then tighten it with clamp 1 Remove the control box lid pull wires inside through rubber bush 2 Connect the power supply cable to the L N terminals and the grounding screw 3 Use cable fastener to bundle and fix the cable 4 After wiring tighten it with clamp and fix the control box lid J lx Power 220V SOHz i Clamp gt TW i Rubber bush II A Control box lid 2 J Seal here to avoid leakage Rubber bush I Control box lid 1 e Precautions Be sure to connect the indoor unit and outdoor unit at right poles 10 3 2 Connection of Signal Line of Wire Controller 1 Open the cover of the electric box of the indoor unit 2 Pull the signal cable of the wire controller through the rubber ring 3 Plug the signal line of the wire controller onto the 4 bit pin socket at the circuit board of the indoor unit 4 Use cable fastener to bundle and fix the signal cable of the wire controller 10 4 Installation of panel eSet the panel to the indoor unit body by matching the position of the swing flap motor of the decor
38. d fresh air valve runs for 36 min 1 The unit continuously runs for 60min and fresh air valve runs for 42 min 8 The unit continuously runs for 60min and fresh air valve runs for 48 min 9 The unit continuously runs for 60min and fresh air valve runs for 54 min 10 The unit continuously runs for 60min and fresh air valve always runs Turn off air Exchange function During Air function press Function button to go to the Air function In this case air mark is blinking and then press Enter cancel button to turn off this function Air mark will subsequently disappear Air Exchange setting is shown as in Fig 11 Enter dance A Fan Mode Ss f w fae V d owen w OW ome 0 runes VW timer ONOn X E iN J iw Turn on the unit without Press Function button Press Aor V turning on AIR Exchange into AIR Exchange button to adjust the type of AIR Exchange Enter A Mode et En ww o TE d E bu R4 q v lu E v nt cue j e Funetion v Tuer Onon Press Enter Cancel button Press Function button Press Enter Cancel button to turn off AIR Exchange into AIR Exchange to turn on AIR Exchange Fig 11 Air exchange device 15 Note In air exchange mode press Function button or there is not any operation within 5s after the last button operation the system will be quit from air exchange setting and current energy saving data won t be memorized 7 8 Sleep
39. e dash receiver of the cassette type unit Timer Indicating Lamp yellow it flashes when the timer is on and goes out when the timer is off It flashes when an error about the temperature sensing bulb occurs It flashes once when the indoor temperature sensing bulb fails It flashes twice when the evaporator temperature sensing bulb fails It flashes three times when the condenser temperature sensing bulb fails It flashes four times when the outdoor temperature sensing bulb fails It flashes five times when the air discharge temperature sensing bulb fails Compressor Indicating Lamp green it flashes when the compressor is on and goes out when the compressor is off It flashes when an error about the defrosting or the compressor occurs It flashes once on the condition of the mode conflict It flashes twice on the condition of defrosting It flashes three times on the condition of the high pressure It flashes four times on the condition of the low pressure It flashes five times on the condition of the overload It flashes six times on the condition of the air discharge Running Indicating Lamp red it flashes when the unit is on and goes out when the unit is off It flashes when an error about the indoor unit occurs It flashes once when the communication works It flashes twice when the water overflow error occurs It flashes three times when the anti freezing error occurs It flashes four times when the hi temperature err
40. eeping states hee UC he tile t a pa S Shielding state buttons temperature on off mode or save is shielded by long distance monitoring Memory H Indoor unit resumes original setting state after power failure and then power recovery Notes The functions with are reserved for other models and are not applicable for the models listed in this manual 5 Buttons 5 1 Silk Screen of Buttons Fig 3 Silk screen of buttons 5 2 Instruction to Function of Buttons Table 2 Instruction to Function of Buttons D Function selection and canceling 1 Enter cancel 2 Press it for 5s to enquiry the outdoor ambient temperature EN D Running temperature setting of indoor unit range 16 30 C 2 Timer setting range 0 5 24hr S Switchover between quiet auto quiet Setting of high middle low auto fan speed Setting of cooling heating fan dry mode of indoor unit Switchover among these functions of air sleep turbo save e heater blow quite EN On off Turn on off indoor unit Press Mode and A for 5s under off state of the unit to enter cancel key memory Memory function If memory is set indoor unit will resumer original setting state after function power failure and then power recovery If not indoor unit is defaulted to be off after power recovery Memory function is defaulted to be off before outgoing Upon startup of the unit without malfunction or under off state of the unit press A V key at t
41. gure on right Caution 1 After the pipes are wrapped by protective materials never bend the pipes to form very small angle and otherwise the pipes may crack or break 2 Do not wrap the protective tape too tight and otherwise the efficiency of thermal insulation may be decreased Ensure that the condensate drainage flexible tube is separate from the bundled pipes 3 After the protective work is completed and the pipes are wrapped use seal material to block the hole in the wall so as to prevent rain and wind from entering the room 55 Example of incorrect work Example of correct work e Gas and liquid piping should not be Insulation of gas pipe Insulation of both gas Insulation of support insulated together only and liquid pipes brackets Gas pip Gas pipe as pipe Liquid pipe Nee Control Control Insulation Insulation oA ENS cable cable 6 Finishing tape Thermal insulation Jointed areas must also be thoroughly insulated This part has not r3 M Copper pipe EM been insulated tomes a A SS MO bracket 3 Use adhesive tape to wrap the pipes 1 Use adhesive tape to bundle the connecting pipe and the cables together To prevent condensate from overflowing out from the drainage pipe separate the drainage pipe firm the connecting pipe and the cables 2 Use thermal insulation tape to wrap the pipes from the bottom of the outdoor unit until the upper end of the pipe where the pipe enters the
42. he remote controller may be damaged NOTE This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety User Notice x Ensure unified power supply for each indoor unit xx Never install wired controller in wet place or under sunlight directly x Shielding twisted pair line must be adopted as signal line or wiring communication of wired controller once the unit is installed in the place where there is electromagnetic interference x Make sure communication line is connected into correct port to avoid communication malfunction yx Never knock throw or frequently disassemble the wired controller xx Never operate the wired controller with wet hand 4 Displaying Part Enter Cancel JA Fan Mode Function me XS J Fig 1 Outline of wired controller v 4 1 LCD Display of Wired Controller 12 3 4 5 6 v 8 9 1n AE AUTO TURBO at A T Pi HOUR am s LILI LI ONOFF SHIELD MEMORY MASTER Sue E HEATER JB ow co Jouer E i O 1 1 9 zj E 2 121314 1516 17 18 19 20 Fig 2 LCD display 4 2 Instruction to LCD Display Table 1 Instruction to LCD Display Instruction to Displaying Contents Airoxctange tomen Air Air exchange function Sleep Sl
43. he same time for 5s in to lock state In this case any other buttons won t respond the press Repress A V key for 5s to quit lock state 6 Installation of Wired Controller Front panel of controller Screw ST2 2X6 5 Fig 4 Sketch for Installation of Wired Controller Pay attention to the following items during installation of wired controller 1 Cut off power supply of heavy current wire embedded in mounting hole in the wall before installation It is prohibited to perform the whole procedure with electricity 2 Pull out 4 core twisted pair line in mounting hole and then make it through the rectangle hole at the back of controller s soleplate 3 Joint the controller s soleplate on wall face and then fix it in mounting hole with screws M4X25 4 Insert the 4 core twisted pair line through rectangle hole into controller s slot and buckle the front panel and soleplate of controller together 5 At last fix the controller s front panel and soleplate with screws ST2 2X6 5 Caution During connection of wirings pay special attention to the following items to avoid interference of electromagnetism to unit and even failure of it 1 To ensure normal communication of the unit signal line and wiring communication of wired controller should be separate from power cord and indoor outdoor connection lines The distance between them should be kept 20cm in min 2 If the unit is installed at the place
44. hen the humidity is over 80 or when the drainage outlet is clogged When the main power switch is truned on some watts of electricity is being used even if the system is not operating Turn off the main power supply switch to save energy Cooling and heating performance will beaffected if the doors and windows are open for a long time It may cause interference in the picture or sound It may do harm to them 65 12 Care and maintenance It should be done by professionals Please pull out the power plug after you used the air conditioner E Pull out the power plug before cleaning 1 Open the suction grille Use screwdriver screws the two screws Slide both knobs simultaneously as shown and then pull them downward slowly 2 Remove the air filters Slide knobs on the back of the suction grille outward and remove the air filter Then romove three air cleaners on it 3 Clean the air filter Use vacuum or wash the air filter with water when the air filter is very dirty use neutral detergent and water L et the filter dry naturally at shady place N ote Do not clean with hot water Do not dry over fire Do not run the air conditioner without the air filter The suction grille must be opened by skilled personnel 66 4 Fix the air filters Fix three air cleaner on the air filter and then fix the air filter to the suction grille by hanging it to the projected portion above suction grille e Set air filter by sl
45. iding the knob on the back of the suction grille inward Shut the suction grille Refer to step 1 Open the suction grille See step 1 of How to clean the air filter 3 R emove the suction grille Open the suction grille at 45 and then lift 2 R emove the air filters See step 2 of How to clean the air filter NN 4 Wash with water When the suction grille is very dirty use soft brush and neutral detergent Shake off water and dry in a shady place Notes Do not wash with hot water Refer to step 3 Seestep4 of How to clean the air filter Refer to step 1 67 changing air cleaner 1 Open the suction grille See step 1 of How to clean the air filter 2 Remove the air cleaner Remove the air filter and remove the air cleaner after unscrewing 3 Take off packing bag and put in new static electricity fiber filter then fix them on the air filter XT A QUE Ge pus aes DU Nm i Lx a EL eee a Fix the air filter see step 4 of How to clean the air filter Air clearner functions and service cycle time Absorbs bad smell in air such as carbon monoxide carbon dioxide benzol gasoline and so on Absorbs harmful objects bigger than 1 0um in air such as dust germ virus and so on It can be used for about half a year to one year 68 How to clean the air outlet and case e Clean with soft cloth or use water and neutral detergent Do not use gasoline benzene thiner polishing powder
46. ies of remote controlling fall Replace batteries Out of the remote controlling range u the distance in 10mm The system stops right Object at the air intake and air i Remove Removethem 00000 after it is started outlet of the air conditioner Object at the air intake and air outlet of the air conditioner Remove them Cooling and heating is malfunctioning Too many people in herom S Note If trouble still exists after checking the above items please contact service center If your air conditioning unit suffers from abnormal operation or failure please first check the following points before repair The power supply is not connected Electrical leakage of air conditioning unit causes tripping of leakage switch The voltage of electrical line is too low The operating keys are locked The control loop has failure There is obstacle in front of the condenser The unit operates for a while The control loop is abnormal and then stops Cooling operation is selected when the outdoor ambient temperature is above 52 C The air filter is dirty or blocked There is heat source or too many people inside the room The door or window is open There is obstacle at the air intake or outlet The set temperature is too high thus cooling is hindered There is refrigerant leakage The performance of room temperature sensor becomes worse The air filter is dirty or blocked The door or window is not firmly closed The set r
47. installation holes in the bottom plate of the wired controller Then insert a wood plug into each hole fix the bottom plate of the wire controller to the way through these two holes plug the control wire onto the control panel and lastly install the panel of the wire controller Refer to Fig 4 57 Fig 30 Fig 31 During the installation of the bottom plate of the wired controller pay attention to the direction of the bottom plate The plate s side with two notches must be at the lower position otherwise the panel of the wired controller cannot be correctly installed Caution 1 The communication distance between the main board and the wired controller can be as far as 20m The standard distance is 8m 2 The wired controller shall not be installed in a place where there is water drop or large amount of water vapor 58 10 5 12 Power Cable Connection Caution Before installing the electrical equipment please pay attention to the following matters which have been specially pointed out by our designers 1 Check that if the power supply used conforms to the rated power supply specified on the nameplate 2 The capacity of the power supply must be large enough The section area of fitting line in the room shall be larger than that of Table 6 shows 3 The lines must be installed by professional personnel An electricity leakage protection switch and an air switch with gap between electrode heads larger than
48. jar Side facing Nun Downward facing 5 Wrap connecting pipe and the joints that have not insulated with sponge and bind them up with plastic tape 10 5 7 Air Purging The purpose of the air purging is to get rid of moisture and air in the system otherwise moisture and air may cause ineffectiveness of the compressor which directly affects the cooling capacity 1 Purging by Using Vacuum 1 Take out the nut cover of the inlet for refrigerant 53 2 Connect the tube of the vacuum watch with the vacuum pump having A Low pressure gauge the low pressure end linking to the inlet for ENES QS E i E ES refrigerant As shown in figure on right T Gauge Manifold Kit si bs FJ tw va udi 3 Starting the vacuum pump when the indicator turns p M Cap Ls to 1 bar closing the low pressure handle and jo VA Cvalve Pac L stopping vacuum Keep for 15 minutes ensuring d is the pressure of the vacuum watch remains Vacuum Purr 4 Take out the valve cover of the gas valve together with the liquid valve 5 Loosing the cord of liquid valve until the pressure rise to 0 bar 6 Dismantle the tube from the cover of the inlet for refrigerant then tighten the cover 7 Loose the valve cord of the gas valve as well as the liquid valve entirely 8 Tighten the valve cover of the gas valve and liquid valve so as to check whether leakage occurred 2 Gap Leakage Check Check if it leaks or not
49. n Under on state of unit press Function button till the unit enters swing control function and then press Enter Cancel button to turn on swing control function During swing function press Function button till the unit enters swing control function and then press Enter Cancel button to cancel swing control function Swing control function setting 1s shown in Fig 9 A Mode v v v wv Fonction V Tuner owon function Y Timer OwOf j C j x 4 Turn on the unit without Press Function button into Press Enter Cancel button turning on swing function swing function turn on swing function Press Function button into Press Enter Cancel button swing function turn off swing function Fig 9 13 7 6 Timer Setting Press Timer button to set timer off of the unit Under off state of the unit press Timer button to settimer on of the unit in the same way Timer on setting Under off state of the unit without timer setting if Timer button is pressed LCD will display xx Hour with ON blinking In this case press A or V button to adjust timer on and then press Timer to confirm If Mode button is pressed before pressing Timer button to confirm timer mode will be switched to timer off setting mode In this case LCD displays xx Hour with OFF blinking In this case press or V button to adjust timer off and then press Timer to confirm When LCD displays xx Hour on off xx Hour means time of timer on but time of timer off wo
50. n t be displayed Timer off setting Under on state of the unit without timer setting if Timer button is pressed LCD will display xx Hour with OFF blinking In this case press A or V button to adjust timer on and then press Timer to confirm If Mode button is pressed before pressing Timer button to confirm timer mode will be switched to timer on setting mode In this case LCD displays xx Hour with ON blinking In this case press or V button to adjust timer on and then press Timer button to confirm When LCD displays xx Hour On Off xx Hour means time of timer off but time of timer on won t be displayed Cancel timer After setting of timer if Timer button is pressed LCD won t display xx Hour so that timer setting is canceled Timer off setting under on state of the unit is shown as Fig 10 Mode eui w owt Fung inn Timer oor Function y Timer ls d z A P Turn on the unit without ies E Press Aor setting timer Press Timer to set button to adjust time Entercancel A Fan Mode Ene canos l an Miet s eil e al eu Ww m wv E ex 4 Function v Timar Com j Function F Timar Oso j k d Ld Ht A E m z Press A or Y Press Mode switch to Press Timer to confirm button to adjust time time on setting timer setting Fig 10 Timer setting under on state of the unit Timer range 0 5 24hr Every press of A or V button will make setting time increased or decrea
51. nditions 4 The air conditioning unit must have grounding to avoid hazard owing to insulation failure 5 All fitting lines must use crimp terminals or single wire If multiple twisted wires are connected to terminal board arc may arise 6 All line connections must conform to the schematic diagram of lines Wrong connection may cause abnormal operation or damage of the air conditioning unit 7 Do not let any cable contact the refrigerant pipe the compressor and moving parts such as fan 8 Do not change the internal line connections inside the air conditioning unit The manufacturer shall not be liable for any loss or abnormal operation arising from wrong line connections 10 5 13 Connection of the Power Cable 1 Air conditioning unit with single phase power supply 1 Remove the front side panel of the outdoor unit 2 Pass the cable though rubber ring 3 Connect the power supply cable to the L N terminals and the grounding screw 4 Use cable fastener to bundle and fix the cable 2 Air conditioning unit with 3 phase power supply 1 Remove the front side panel of the outdoor unit 2 Attach rubber ring to the cable cross hole of the Caution Take great care when carrying out the following connections so as to avoid malfunction of the air conditioning unit because of electromagnetic interference In case the unit is installed ina place vulnerable by electromagnetic interference it is better to use
52. onnel Be sure to use only the specified accessories and parts for installation failure to use may lead to electric shock leakage or fire e Carry out installation with consideration of strong wi nds typhoons or earthquakes mproper installation work may result in accidents due to fall of equipment e If the unit is to be moved to other place please consult dealer first Water pipe Some parts of the water pipe are made of plastic materials and not suitable for earthing ek Select a place with good ventilation or it may affect performance or increase noise Install the air conditioner on a foundation that can withstand its weight insufficient strength may result in the fall of equipment and cause injury Select a place so as not to annoy neighbor with the hot air or noise Never place objects near the air outlet or the unit it may affect performance or increase noise e If there is abnormal noise during the operating contact dealer immediately e Make sure wiring is carried out by qualified personnel according to laws and regulations and this manual using a separate circuit and suitable fuse Be sure to install an earth leakage breaker Diameter of power supply cord must be big enough Refer to P24 about the sizes of diameter e If the supply cord is damaged it must be replaced by the manufacturer or its service agent or a similary qualified person in order to avoid a hazard The appliance
53. oom temperature is too low thus heating is Poor heating effect hindered There is refrigerant leakage The outdoor ambient temperature is lower than 7 C Control line is abnormal The unit cannot be started Poor cooling effect 70 continued The installation site of the tube sensor is not proper The indoor fan does not start Tube sensor is not correctly plugged under the heating mode The connecting line of the tube sensor is broken The capacitance has leakage Note 1 After carrying out the check of the above items and taking relevant measures to solve the problems found but the air conditioning unit still does not function well please stop the operation of the unit immediately and contact the local service agency Only ask professional serviceman to check and repair the unit The following are not troubles The unit does nat operate when Mistis emitted Outdoor unit is hot ia erre un el z p a r a e I e Gea m ry GR v ad Rane A continuous low shah sound is heard when the system is in cooling operation or Mime ecc pe cL E UE rs etal RENE ER TOT Un Leder Ap of defrosting o Dust from the units Starting operation after not using for a long ate Wind from the outlet smalls 71 14 Appendix Air conditioner nominal working condition and working range Indoor side Nominalheating 20 J 7 Low temp heating 5 7 8 8 4 E oom Note 1
54. or occurs It flashes five times when the test runs forcibly 26 9 Remote control operation procedure standard fitting Name and Function Remote Control Note Be sure that there are no obstructions between receiver and remote controller Don t drop or throw the remote controller Don t let any liquid in the remote controller and put the remote controller directly under the sunlight or any place where is very hot SWING button When itis pressed the louvers start to rotate automatically and stop when repressed FAN button Press this button to change the fan speed of SWING FAN AUTO FAN 4 al at AUTO FAN a OPER TEMP button TEMP increases C by pressing CD button once and decreases 1C by pressing button ance At COOL mode operation SET TEMP can be selected from 16 C to 30 C AtDRY mode operation SET TEMP can be selected from 16 C to 30 C t HEAT mode operation SET TEMP can be selected from 16 C to 30 C uM SWING HUMID LIGHT SAVE T TIMER t J CN OFF Ow OQ UH S COOL mode I DRY mode 8f FAN mode e HEAT mode ON OFF button Press this button to turn on or turn off the unit MODE button Press this button to change the operation mode in order of Uro S pue 2 Name and Function Remote Control Remove the cover Note This type of remote controller is a kind of new current controller Some buttons of
55. or runs Set TEMP should be in range of 16 Cto 30 C louvers start to rotate automatically and stop when repress it SWING FAN d AUTO FAN oven 5 Press TEMP but ton set suitable TEMP Plug in press ON OFF button then air conditioner is turned on 2 Press MODE button set operation 30 DRY mode operation procedure If room Temp is more than 2 C below Set TEMP compressor and outdoor unit fan motor stop indoor unit fan motor runs at low speed If room Temp is between 2 C of Set TEMP the compressor and outdoor unit fan motor will run for 6 minutes and stop for 4 minutes and always in such a cycle the indoor unit fan motor will run at low speed If room Temp is more than 2 C above Set TEMP compressor and outdoor unit fan motor run as COOL mode the indoor unit fan motor runs at low speed 3 Press SWING button the louvers start to ro s 3 tate automatically and Lines indi stop when repress it SWING FAN AUTO FAN CG h OPER 4 Press T E MP button set suitable TEMP TIMER OW TIMER CFF ANJON BAVE 2 Press MODE button set M operation mode 1 Plug in press ON OFF button then air conditioner s turned on 3l AUTO mode operation procedure According to room temp microcomputer can automatically set COOL HEAT DRY operation mode so as far best effect At AUTO mode operation standard TEMP is 26 C for COOL mode
56. orced Note There will be lots of lampblack and dust stick on the acentric fan heat exchanger and water pump 38 in dining room and kitchen which would reduce the capacity of heat exchanger lead water leakage and abnormal operation of the water pump The following treatment should be taken under this circumstance 1 Ensure that the smoke trap above cooker has enough capacity to obviate lampblack to prevent the indraft of the lampblack by the air conditioner 2 Keep the air conditioner far from the kitchen so that the lampblack would not be indraft by the air conditioner 10 2 3 Important notice yx To guarantee the good performance the unit must be installed by professional personnel according with this instruction Please contact the local INVENTOR special nominated repair department before installation Any malfunction caused by the unit that is installed by the department that is not special nominated by INVENTOR would not deal with on time by the inconvenience of the business contact 10 2 4 Dimension of ceiling opening and location of the hoisting screw M10 650mm Grille measurement 1 25 15 32 650mm ER Hanging bolt position 15 3 4 400mm els 15 3 c ore a pe a B 5 d aS gt sg P sie ih FE o0 N V EE Jm o0 N re a E re L Y C3 62 XK b SC VICI 12 22197 32 66mm a 39
57. outside of the flare nut with freeze motor oil screw it by hand and then tighten it with spanner xx Refer to Table 4 to check if the wrench had been tightened too tight would mangle the nut and lead leakage Table 4 the tightening torque needed for tightening nut Diameter Inch Surface thickness mm Tightening torque N m 30 40 45 50 60 65 70 75 yx Examine the connection pipe to see if it had gas leakage and then take the treatment of heat insulation as shown in the Fig 21 yx Only use median sponge to entwine the wiring interface of the gas pipe and heat preservation sheath of the gas collection tube 43 10 2 7 Drainage hose 1 Install the drain hose xx The diameter of the drain hose should be equal or bigger than the connection pipe s The diameter of polythene pipe Outer diameter 25mm Surface thickness gt 1 5mm yr Drain hose should be short and drooping gradient should at less 1 100 to prevent the formation of air bubble xx If drain hose cannot has enough drooping gradient drain raising pipe should be added X To prevent bent of the drain hose the distance between hoisting stand should is 1 to 1 5m f ge foo ge f ga n NL 9 At o y O Correct 1 100 or more gradient x Use the drain hose and clamp attached Sponge attachment Insert the drain hose to the drain vent and then tighten the clamp Qamp Qampatadwmen 7 yx Entwine the big sponge on the clamp of
58. pipe in the way that the pipe Refrigerant Tube end is 0 5mm above the top of the die Then check if the pipe end is even and perfectly Uneven Poor Skin Cracked Uneven Slope Thickness 30 40mm Low Pressure Refrigerant Tube 4 Wire Connecting and Taping i l See the figure on right ues Connecting Wire High Pressure Refrigerant Tube To Indoor Unit Tosenidoor Vinis 32 10 5 6 Connecting Pipe 1 Match the flaring of copper pipe to the center of screwed connection and then screw the flared nut up by hands 2 Screw flaring nut with torque wrench until the spanner clatters which is shown in the figure below Copper piping Oil applied to reduce friction with the flare nut Torque wrench SM NATUR sv Spanner i Es Flare nut Oil applied improves seal air tightness PAM Flare nut Pipingunion Refer to Table 5 to check if the wrench had been tightened too tight would mangle the nut and lead leakage Table 5 the tightening torque needed for tightening nut Diameter Inch Surface thickness mm Tightening torque N m 93 8 30 40 91 2 45 50 95 8 60 65 93 4 70 75 3 Degree of curvature of the tubing cannot be too small or the pipe might be broken up When bend the piping bending apparatus shall be applied 4 Brazing port shall be downward or horizontal when brazing the pipeline Try to avoid the upward brazing as shown in figure below which easily affects welding quality and causes leakage O sok
59. sed by 0 5hr If press either of them continuously setting time will automatically increase decrease by 0 5hr every 0 5s Note 14 1 If both timer on and timer off are set in unit on interface the wired controller only display time of time off If both of them are set in unit off state only time of timer on is displayed 2 Timer on in unit on state is timed from the time of unit off and timer off in unit off state is timed from the time of unit on 7 7 Air Exchange Setting Turn on air Exchange function Under on state of the unit press Function button to go to the this function setting Air mark blinks AIR 1 displayed at the ambient temperature displayed location 888 is defaulted the last type of AIR will be displayed after adjustment Press A or V button to adjust air type Press Enter Cancel button to turn on off air function After turning on this function the air mark shows There are 10 types of AIR but only 1 2 types are for remote control Refer to the following details The unit continuously runs for 60min and fresh air valve runs for 6 min 2 The unit continuously runs for 60min and fresh air valve runs for 12 min 3 The unit continuously runs for 60min and fresh air valve runs for 18 min 4 The unit continuously runs for 60min and fresh air valve runs for 2 4 min 5 The unit continuously runs for 60min and fresh air valve runs for 30 min 6 The unit continuously runs for 60min an
60. till left between the ceiling and the panel after screwing the screws readjust the height of the indoor unit body Refer to Fig 24 A diustreenvt of the rebar enit Exochy Tror he holes in the corner of the panel is possible if the indoor unit is kept leveled and the ciralbrunc o pn pod pou rcg ete is anal Tasc tec el I et KIA E No gap is allowed E FAR F Fig 24 e After fixing make sure there is no gap between the ceiling and panel 47 3 Wiring of the decoration panel Connect the joints for swing flap motor lead wire at 2 places installed on the panel Refer to the figure below NOTE Two butted terminals of the air deflector fan must be placed inside the electric box Refer to Fig 25 48 Fig 25 49 10 5 Install of outdoor unit 10 5 1 Profile Dimensions of Outdoor Unit F cc cc C Cc Cc c c pM c co cc UIRS 36 UIRT 36 UIRS 45 10 5 3 Precautions on Installation of Outdoor Unit To ensure the unit in proper function selection of installation location must be in accordance with following principles 1 Outdoor unit shall be installed so that the air discharged by outdoor unit will not return and that sufficient space for repair shall be provided around the machine 2 The installation site must have good ventilation so that the outdoor unit can take in and exha
61. tion is shown as Fig 15 below EnleCamcH Fas Mode Enlai A Fan Mode Enter A Fan Mode gt ba y ld wow L Y i Jr uu gt ww e Function Tier anan Eg a T Taser Onion Funct T Timar a X Fi ls I a x r Auxiliary electric heating Press Function button Press Enter Cancel button function will be automatically to turn off E Heater function turn on under heating mode into E Heater function el O Oi si r at ar 7 Timer E nf hs I F Press Enter Cancel button to turn on E Heater function Press Function button into E Heater function Fig 15 Auxiliary Electric Heating Function Setting Note E HEATER can not be set in cooling dry and fan mode E HEATER mark won t be displayed The setting is shown in Fig 15 19 7 12 Blow Function Setting BLOW function After the unit is turned off water in evaporator of indoor unit will be automatically evaporated to avoid mildew In cooling and dry mode press Function button till the unit enters BLOW function with BLOW blinking and then press Enter cancel button to turn on this function In BLOW mode press Function button till the unit enters BLOW function and then press Enter cancel button to cancel this function BLOW function setting is shown in Fig 16 Fan Meda EmevCencet Fan Moon Enber Cancal Fan Mode eal LR Ad sil i T hel E v o v y o v v 3S3 Function Y Tmar Onion m v Timar
62. turn to compressor may be affected Do not let the child to operate the air conditioner unit Do not operate the air conditioner unit with wet hand Please disconnect the main power before cleaning the air conditioner or replacing the air filter Operating by professional Please disconnect the main power if to put the air conditioner unit out of use for a long period Please do not expose the air conditioner unit directly under corrosive environment with water or moisture Please do not foot on or place any goods on air conditioner unit 2 After electrical installation the air conditioner unit shall be energized for electrical leakage test Operating by professional If the supply cord is damaged it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard An all pole disconnection switch having a contact separation of at least 3mm in all poles should be connected in fixed wiring The appliance shall be installed in accordance with national wiring regulations The temperature of refrigerant circuit will be high please keep the interconnection cable away from the copper tube Read the following carefully to assure safe use Avoid direct air flow to your body and avoid excessive heating or cooling which may make you feel uncomfortable and do harm to your health Do not remove protection grill nets from the outdoor unit Do not reach hands or
63. unit ambient sensor malfunction at air return opening E0 El E2 3 E4 ES E6 E9 FO F1 F2 F3 F4 F5 24 Definition of Malfunction Codes of DC Inverter General Outdoor Unit V1 6 Malfunction lem Outdoor unit display of dual 8 Indoor Unit numeral tube Display E E E Low voltage protection Compressor startup failure PFC abnormality Compressor clogged Drive resetting Deere Sensor connection protection Temperature drift protection AC contactor protection High pressure protection Low pressure protection Exhaust protection Compressor overload protection Communication malfunction among indoor unit outdoor unit and E6 ired controller Outdoor ambient temperature sensor malfunction Coil pipe intermediate temperature sensor malfunction of icc o o nit Exhaust temperature sensor malfunction Defrosting non malfunction defrost Oil return non malfunction no display Mismatch of indoor unit model no display AC current protection input side Driver board environment temperature sensor malfunction AC input voltage abnormality Electrification loop malfunction 25 Instructions to the Error Indicating Lamps on the Panel of the Cassette Type Unit Instructions to the error indicating lamps on the dash receiver of the cassette type unit are described below Once the handheld controller works the error code will be displayed on it Instructions to three indicating lamps on th
64. urned off If memory function is off the unit after plugging out the out will be turned off and the mark LE will show If re plugging in the card the mark will disappear and the unit enter will enter off state Note 1 During long distance monitoring the unit on off cannot be controlled by the card but the mark led will also show after plugging in the card 2 The unit cannot be controlled by button operation after plugging out the card 23 8 Error Display If there is malfunction during running of the system LCD will display error code at temperature displayed location Once there is more than one malfunction error codes will be displayed circularly If there are multiple circuit systems the system number of failed system will be displayed before the colon not for single system If malfunction occurs turn off the unit and contact nearest dealer for help As shown in Fig 18 it means high pressure protection of system 2 under unit on Enter Cancel Fan Mode 7 c uw Function Y Timer On O T Fig 18 Error code meaning Malfunction BO Water Pump Malfunction Eb High pressure protection of compressor E Indoor anti freezing protection E Low pressure protection of compressor High discharge temperature protection of compressor Compressor overload protection Communication malfunction Water overflow protection FS Ambient sensor malfunction on Displayer or LED board FO Indoor
65. ust enough air Ensure that there is no obstacle for the air intake and exhaust of the outdoor unit If there is any obstacle blocking the air intake or exhaust remove it 3 Place of installation shall be strong enough to support the weight of outdoor unit and it shall be able to insulate noise and prevent vibration Ensure that the wind and noise from the unit will not affect your neighbors 4 Avoid direct sunshine over the unit It is better to set up a sun shield as the protection 5 Place of installation must be able to drain the rainwater and defrosting water 6 Place of installation must ensure the machine will not be buried under snow or subject to the 50 influence of rubbish or oil fog 7 The installation site must be at a place where the air exhaust outlet does not face strong wind 10 5 4 The three principles of refrigerant piping Operational steps Fit pipes Install indoor unit Cut pipes to size provisionally Replace nitrogen Solder Flushing Air tight test Vacuum drying The 3 Principles The 3 principles of refrigerant piping must be strictly observed of Refrigerant Piping Ea Cause of problem Actoin to avoid problem Hainwater work water 1 etc gets into pipes from outside Pipe covering Flushing Moisture generated inside pipes due to condensation Formation of oxides inside E pipes during soldering Replace nitrogen

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