Haier HDU-24H03/H User's Manual
Contents
1. flaring work again the return to the beginning of 24 m INSTALLATION MANUAL FOR OUTDOOR UNIT 2 way valve Open the valve rod for the 2 way valve to and angle of anticlockwise 90 degree After 6 seconds later close the 2 way valve and male the inspection of gas leakage Seth in ai pt EE pee su eor aa If it does not stop gas leakage discharge whole refrigerants gt from the serice port flaring work again and Supe hen fil up prescribed refrigerant from the gas cylinder 1 No gas leakage 2 valve 2 way valve Ay 3 way valve Liquid pipe 9 52mm Detach the char hose from the service port open 2 way valve and 3 way Turn the valve rod anticlockwise until hitting lightly 3 way valve To prevent the gas leakage turn the service port s cap the valve cap for 2 way valve and 3 way s a lottle more than the point where the torque increases 777777777777773 i y 2 way valve suddenly Ww3 way valve After the each caps check the gas leakage NI ri Oy vaiverod cap around the caps 9 Valve rod cap Service port cap CAUTION Birnie 2 way valve If the refrigerant of the air conditioner leaks it is necessary to make Bway Vale all the refrigerant out then charge the liquid refrigerant into air conditioner according to the amount ma2. case of a new building conduct the test before it is furnished with the ceiling 4 Be sure to conduct this test even when the unit is installed in the heating season Procedures 7 Supply about 1000 cc of water to the unit through the air outlet using a feed water pump Check the drain while cooling operation 6 Installation of air suction and discharging duct muffler cavity air sending Enlarging chart of Sacking joint profile chart A Vibration resistance hook Insulation Air volume adjuster Qin La y Air suction grille with air filter 7 i Air conditioner main unit Checking meatus Please consult the after sales service worker of Haier Air Conditioner for the choosing and installation of suction inlet suction duct discharging outlet and discharging duct Calculating the design drawing and outer static pressure and choose the discharging duct with proper length and shape 31 m INSTALLATION MANUAL FOR INDOOR UNIT The length difference among every duct is limited below 2 1 Reduce the length of duct as possible as can Reduce the amount of bend as possible as can Use heat insulation material to bind and seal the part connecting main unit and the flare part of air discharging duct Perform duct installation work before the fitment
3. pe BE Oo 6 Time confirming for TIMER OFF Select OFF After time setting press SET button to confirm OFF stops flashing 3 Time setting for TIMER ON Time displayed Unit stops at X hour X min Press TIME button AE very time the button is pressed time increases 10min If button is kept depressed time will change quickly W Every time the button is pressed time decreases 10min If button is kept depressed time will change quickly Time will be shown LCD It can be adjusted within 24hours AM refers to morning and PM to afternoon To cancel TIMER mode E ust press TIMER button several times until TIMER mode disappears According to the Time setting sequence of TIMER ON or TIMER OFF either Start Stop or Stop Start can be achieved Comfortable Sleep 111111 Atnight before going to bed you can press down the SLEEP button on the controller and the air conditioner will run by the comfortable sleeping mode to make you sleep more comfortable he AR AM UU Press SLEEP button once to make the air conditioner have the previous set sleep time first pow er on is 1h the sleep symbol will appear Press time button A W you can choose the time in 1 8 hours Each press of amp the time increases reduces 1 hour and xh appears in the humidity setting part OFF
4. DUCT TYPE AIR CONDITIONER INSTRUCTION MANUAL HDU 24H03 H HDU 28H03 H HDU 42H03 H No 0010571721 e Please read this manual carefully before using TABLE OF CONTENTS CAUTIONS 2 PRECAUTIONS 3 5 oA dese Whom 6 8 OPERATION 9 14 MALF NCTION ace peace ar ete 15 16 CAREAND MAINTENANCE eee 17 FOR PREPARATION OP HEATING 2 18 ISTHE UNIT INSTALLED 19 INSTALLATION MANUAL FOR WIRE CONTROLLER 20 21 INSTALLATION MANUAL FOR OUTDOOR UNIT 22 26 INSTALLATION MANUAL FOR INDOOR UNIT 27 35 OTHER INSTRUCTION AND TEST RUN 36 CAUTIONS Disposal of the old air conditioner Before disposing an old air conditioner that goes out of use please make sure it s inoperative and safe Unplug the air conditioner in order to avoid the risk of child entrapment It must be noticed that air conditioner system contains refrigerants which require specialized waste disposal The valuable materials contained in a air conditioner can be recycled Contact your local waste disposal center for proper disposal of an old air conditioner and contact your local authority or your dealer if you have any question Please ensure that the pi
5. liquid 27 OS It could cause a fire accident D Neither stand on the air conditioner not is strictly prohibited to place a cont i mg Afot operate the system while the There are risks of falling or injury by collapsed object There is a risk of injury Do not use the power switch to turn on ori Do not touch the air outlet section whdd enot use such equipment as a water off the system the swing louver is operating heater etc around the indoor unit or the wire controller 9 8 There is a risk of injury If the system is operated at the vicinity of such equip ment which generates steam condensed water may drip during cooling operation or it could cause a fault current or short circuit It could cause a fire or water leakage When operating the system simultaneously Check occasionally the support structure not place any objects on or climb on with combustion apparatus indoor air misthe unit for any damageafter a use of unit be ventilated frequently period of time Jue Insufficient ventilation could cause an i If the structure is not repaired immediately the oxygen deficiency accident unit could topple down to causea personal injury When cleaning the system stop the operati obo not put water containers on the unit Do not try to repair or reconstruct by yourself and turn off the power switch such as a flower vase etc 1
6. 1 4 2 2 Correct Incorrect __ u 1 1 i Slant Broken Burrs Uncompleted Too long Test run The following items must be noticed carefully during installation After finishing installation performing checking After installing the refrigerant pipe drain hose and electric wire properly perform test run to ensure the system not have trouble Test run 1 Open the stop valve of gas pipe 2 Open the stop valve of liquid pipe 3 Press ON OFF button to start operation use wire controller to set to Cooling operation 4 Confirm the function of the unit according this manual 36
7. SHUT DOWN SLEEP RUN BEGINS SLEEP RUN STOPS Heat mode Cooling mode Ses Power Failure Compensation to be applied for a necessary situation After the power failure compensation is set if power failure suddenly occurs while the air conditioner is working it will resume the previous working state when the power is supplied again Setting M ethod When the wire controller is on excluding timer mode and fan mode press the Sleeping button on the remote controller 10 times within 5 seconds and after the buzzer rings 4 times the air conditioner will enter the state of power failure compensation Cancel Method Press the Sleeping button on the wire controller 10 times within 5 seconds and after the buzzer rings 2 timer the power failure compensation mode will be cancelled Notes When a power failure suddenly occurs during the air conditioner is working after the power failure compensation is set if the air conditioner will not be used for along time please cut off the power supply to prevent its operation from being resumed after the power is supplied again or press the Switch On Off button after the power comes again In this series changeover switch is set 2 0FF 3 0FF 4 0FF S442 m MALFUNCTION please check the following things about your air conditioner before making a servie call Unit fails to start 15 the power source 15 city supply power in Isn t the signal rec
8. If the structure is not repaired immediately the unit could topple down to cause apersonal injury Cleaning should never be done while the internal fans are running with high speed E CAUTIONS FOR TRANSFER OR REPAIR ANVARNI NG Modification of the systemis strictly prohibited When the the air conditioner is relocated contact your dealer or a pro needs a repair consult your dealer fessional installer Improper practice of repair could cause water leakage electric shock or fire Improper practice of installation could cause water leakage electric shock or fire 4 MSAFETY PRECAUTION The machine is adaptive in following situation 1 Applicable ambient temperature range Maximum D B W B 32T 23 Minimum D B W B 18 C 14 C Cooling Maximum D B W B 43 26 Outdoor Minimum D B 15 Maximum D B Minimum D B Heating Maximum D B 24 18 Minimum D B 7T 8C Outdoor 2 If the supply cord is damaged it must be replaced by the manufacturer its service agent or a similar qualified person 3 If the fuse on PC board is broken please change it with the type of 3 15A 250V The wiring method should be in line with the local wiring standard The power cable and connecting cable are self provided The power cable should be HO7RN F 5G2 5mm for HDU 42H03 H or HO7RN F 3G4 0mm for HDU 24H 03 H HDU 28H03 H
9. Do not twist or crush piping Be sure that no dust is mixed in piping Bend piping with as wide angle as possible K eep Insulating both gas and liquid piping Check flare connected area for gas leakage 4 Air purge a For HDU 24H03 H HDU 28H03 H Purge air out of indoor unit and piping as shown in the Fig 1 Remove the valve cap on 2 way valve in outdoor unit 2 Loosen by 1 1 5 turn the flare nut of gas pipe which is connected Gas pipe Liquid pipe 15 88mm 5 8 to 3 way valve 9 52mm 3 8 3 Loosen the valve rod of 2 way valve by 90 degrees use a hexagon wrench for about 15 seconds air will be pushed out from flare nut gas pipe 4 Open 2 way and 3 way valves using specified torque 5 Tighten the caps on the valves with specified torque 6 Conduct gas leakage using gas leakage detector or soap water Note When additional refrigerant piping is necessary first purge air out of connecting pipe by external gas then drive out the excessive refrigerant by purging method Brand new unit is charged 80g more refrigerant than spec This is only for first installation to purgeair in the indoor unit and connecting pipe b For HDU 42H03 H Carry out the air purge of the indoor unit and refrigerant piping by vacuuming Procedures 1 Tighten all the flare nuts of the piping on the side of indoor and outdoor units so that there is no leakage 2 Carry out vacuuming from the ser
10. appears in TIMER OFF display part and timer off time press SLEEP button again to cancel sleep function the sleep symbol diappears In cooling dehumidifying mode One hour after sleeping operation start the temp is 1 C higher than the setting one A fter another hour the temp rises 1 C and then run continuously for another 6 hrs and then close The actual temp is higher than the setting one which is to prevent from being too cool to your sleep In heating mode One hour after start up the temp decrease 2 C lower than the setting one After another hour decrease by more 2 C The temperature will automatically rise by 1 C after another 3 hrs operation and then automatically close after 3 hrs continuous operation The actral temperature is lower than the setting one which is to prevent from being too hot to your sleep Note e In AUTO mode unit will run SLEEP function according to the operation mode e After setting SLEEP function it is forbidden to calibrate clock f the set sleep time does not reach 8 hours the unit will stop operation automatically after set time is complete e Set TIMER OFF function first then set SLEEP and the sleep set is performance set TIM ER ON function first the sleep function can only be set before TIM ER ON if set theSLEEP function first the TIMER function can not be set SLEEP RUN BEGINS SLEEP RUN STOPS SETTINGT SHUT DOWN about 6 hrs SETTING
11. eee HDU 28H03 H iter connect ng A WARNING DO NOT CONNECT THE NEUTRAL WIRE TO OR PHASE INTERCONNECT ING WIRES MUST BE WIRED WITH SAME SYMBOLS ON THE TERMINALS OF BOTH INDOOR AND OUTDOOR UNIT INCORRECT WIRING CAUSE EQUIPMENT DAMAGE OR A FIRE 3 Wiring procedure 1 Remove set screws on the side before taking off the front panel toward the direction shown in figure 2 Connect wires to the terminal block correctly and fix the wires with a wire clamp equipped near by the terminal block 3 Route the wires in a proper way and penetrate the wires through the opening for electric wiring on the side panel Opening for electric wiring 6 Test run Front panel CAUTION THIS UNIT WILL BE STARTED INSTANTLY WITHOUT ON OPERATION WHEN ELECTRIC POWER IS SUPPLIED BE SURE TO EXECUTE OFF OPERATION BEFORE ELECTRIC POWER IS DISCONNECTED FOR SERVICING This unit has a function of automatic restart system after recovering power stoppage 1 Before starting test run for all Heat pump models Confirm whether the power source breaker main switch of the unit has been turned on for over 12 hrs to energize the crankcase heater in advance of operation 2 Test run Run the unit continuously for about 30 minutes and check the following e Suction pressure at check joint of service valve for gas pipe e Discharge pressure at check joint on the compressor discharge pipe e Temperature differenc
12. The connecting cable should be HOSRN F 4G0 75mm2 All the cables shall have got the European authentication certificate During installation when the connecting cables break off it must be assured that the grouding wire is the last one to be broken off The breaker of the air conditioner should be all pole switch and the distance between its two contacts should be no less 3mm The indoor unit installation height is at least 2 5m uo a 5 FUNCTIONS Indoor Unit Air outlet Duct Drainpipe Air inlet Outdoor Unit gt Connecting piping and electrical wiring Air inlet Air outlet Uff Air inlet Air outlet Compressor Inside of unit Drain hose HDU 42H03 H HDU 24H03 H HDU 28H03 H PARTSAND FUNCTIONS O ation Buttons and display of the wire controller CLOCK Used to set correct time TIMER Used to select TIMER ON TIMER OFF O E MODE Used to select AUTO RUN COOL DRY HEAT and FAN fed gt FAN SPEED Used to select fan rn Coe m Used to select your desired temp SET Used to confirm Timer TIME and Clock settings Used to set clock and timer setting SLEEP Power ON
13. be careful not to damage it U pper part of wire controller Lower part of wire controller 2 Install wire controller 1 For exposed installation use 2 wood screws accessory 2 For recessed installation use 2 wood Screws accessory Note Try as far as possible a flat surface for installation Don t use excessive force when tightening screws or lower part might got deformed 20 Mm INSTALLATION MANUAL FOR WIRE CONTROLLER 3 Indoor unit wiring Hint Connect terminals A B C D on lower part of When make wiring please keep wire controller to terminals A B C D on PCB a distance between wires and power supply cord of indoor unit Wiring from here Wire size Lawer partar Shield wire 4 core wire controller refer to Hint 3 4 0 33mm2 Use shielede wires for telecommunication between wire controller and indoor unit 1111 indoor unit and outdoor unit Ground shield on one side Otherwise misoperation because of noise may occur Signal wire is self provided U pper part of Shielded wire wire controller ground Hint Tread surface of the terminal well so that shielding may not contact other part 4 Replace the upper part of wire controller Be careful not to press the wiring Hint 1 Switch box and cord for wiring are not supplied 2 Don t touch PCB with hand m INSTALLATION MANUAL FOR OUTDOOR UNIT lt H e
14. circuit is activated Unitdoes R During this time air conditioner operates in fan mode Air does not blow or the fan When it is excessively cooled during dehumidifying the blower speed can not be changed during automatically repeats reducing and lowering the fan speed dehumidifying During operation operation mode sn t the AUTO mode selected has changed over automatically In the case of AUTO mode operation mode is changed automati cally from cooling to heating or vise versa according to the room temperature Water or steam generates from This results when frost accumulated on the outdoor unit is removed the outdoor unit during heating during defrosting operation AND MAINTENANCE Points to observe Turn off the power supply switch Do not touch with wet hand Do not use hot water or volatileliquid Dono on S e ACAUTION e Do not open the inlet grill until fan stops completely Fan will continue rotating for a while by the law of inertia after operation is being stopped Cleaning 1 Clean the air filter by lightly tapping it or with the cleaner It is more effective to clean the air filter with water If the air filter is very dirty dissolve neutral detergent in the lukewarm water approx 30 C rinse the air filter in the water and thoroughly wash the air filter off the detergent in the plain water 2 After drying the air filt
15. it is liable to frost the heating operation is stopped automatically for 5 to 12 minutes once per approx one hour and defrosting is operated After defrosting is completed operation mode is automatically changed to ordinary heating operation When the room thermostat is actuated W hen room temperature increases and room temperature controller actu ates the fan speed is automatically changed to stop under low temperature condition of indoor heat exchanger W hen room temperature decreases air conditioner automatically changes over to ordinary heating operation WARMING OPERATION Heat pump type warming With the heat pump type warming the mechanism of heat pump that concentrate heat of outdoor air with the help of refrigerant to warm the indoor space is utilized Defrosting operation When a room is warmed with a heat pump type air conditioner frost accumulates on the heat ex changer of outdoor unit along with the drop of indoor temperature Since the accumulated frost re duces the effect of warming it is necessery to automatically switch the operation to the defrosting mode During the defrosting operation heating operation is interrupted Atmospheric temperature and warming capacity Warming capacity of heat pump type air conditioner decreases along with the drop of outdoor temperature W hen the warming capacity is not sufficient it is recommended to use another heating implement Period of warm up Since
16. of ceiling Bad example Bad example Good example 5 2 7 7 Calculation method of the dimension of the simple quadrate air duct Presuming the unit length friction impedance of the duct is 1Pa m when the dimension of one side of the air duct is fixed as 250mm as shown below Air volume Duct mmxmm Air volume Duct mmxmm Air conditioner 2400 h 1200 h asoxs60 250x310 600m h h 1 250x190 250 120 HDU 42H03 H HDU 24H03 H D Q Static Equipped with HDU 28H03 H air filter bought Thecalculation of duct resistance the simple calculation is as follow table Air inlet grille with air filter The chosen chart of simple duct Note 0 1mmAg Square duct Square duct Dimension Dimension X X X X X X X X X X 32 m INSTALLATION MANUAL FOR INDOOR UNIT 8 The attentive matters in installation of air suction and discharging duct Recommend to use anti frost and sound absorbing duct locally bought Special air discharging outlet Use screw bolt to fix The duct installation work should be finished before the fitment of ceiling The duct must be heat insulated The specific air discharging outlet should be installed at the place where the airflow can be reasonably distributed The surface sh
17. operation mode displayed on LCD than temp setting unit will run intermittently at LOW Stop display at your desired mode speed regardless of FAN setting 3 Select temp setting 5 Unit stop Press TEM P button Press ON OFF button A Every time the button is pressed temp setting Only time and room temp remains on LCD All indicators go out increases 1 C Vertical flap closes automatically If button is kept depressed temp setting will increase quickly Every time the button is pressed temp setting Hints decreases Wire controller can memorize each operation If button is kept depressed temp setting will status When starting it next time just press decrease quickly ON OFF button and unit will run in previous Unit will start running to reach the temp setting status onLCD 10 TIMER operation Set Clock correctly before starting Timer operation You can let unit start or stop automatically at following time Before you wake up in the morning or get back from outside or after you fall asleep at night TIMER ON OFF 1 unit start select your desired Operation mode Operation mode will be displayed on LCD Power indicator lights up 2 TIMER mode selection Press TIMER button to change TIMER mode Every time the button is pressed display changes as follows gt c gt blank Select your desir
18. rily high The place where near the machine which radiates the electromagnetic wave For details consult your sales dealer The place where voltage variation is con siderably large Electric work The electric work must be burden on the authorized engineer with qualification for electric work and grounding work and the work must be conducted in accordance with electric equipment technical standard The power source for the unit is to be of exclusive use An earth leakage breaker should be installed This is necessary to prevent electric shock The unit must be grounded When you change your address or the installation place Special technology is required for removal or reinstallation of air conditioner consult the sales dealer Besides construction expense is charged for removal or reinstallation For inspection and maintenance The capacity of air conditioner will decrease by contamination of inside of unit when it is used for about three years although depending upon the circumstances under which it is used and so in addition to the usual maintenance service special inspection maintenance service is necessary It is recommended to make a maintenance contract charged by consulting your sales dealer as INSTALLATION MANUAL FOR WIRE CONTROLLER 1 Remove upper part of wire controller Remove upper part of wire controller by press PCB is mounted on lower part of wire controller
19. shocks and fires Accurately connect wiring using the proper cable and insure that the external force of the cable is not conducted to the terminal connection part through properly securing it Improper connection or securing can result in heat generation or fire Take care that wiring does not rise upward and accurately install the lid service panel Its improper installation can also result in heat generation or fire W hen setting up or moving the location of the air conditioner do not mix air etc or anything other than the designated refrigerant 22 within the refrigeration cycle Rupture and injury caused by abnormal high pressure can result from such mixing Always use accessory parts and authorized parts for installation construction U sing parts not authorized by this company can result in water leakage electric shock fire and refrigerant leakage CAUTION e Execute proper grounding Do not connect the ground wire to a gas pipe water pipe lightning rod or a telephone ground wire Improper placement of ground wires can result in electric shock e The installation of an earth leakage breaker is necessary depending on the established location of the unit Not installing an earth leakage breaker may result in electric shock e Do not install the unit where there is a concern about leakage of combustible gas The rare event of leaked gas collecting around the unit could result in an outbreak of fire For the drain pipe follow
20. strict compliance with the relative instructions set forth in the User s Guide e Installation shall be done by professional people don t install unit by yourself e For the purpose of safety the air conditioner must be properly grounded in accordance with specifications e Always remember to unplug the air conditioner before opening inlet grill N ever unplug your air conditioner by pulling on the power cord Always grip plug firmly and pull straight out from the outlet All electrical ropairs must be carried out by qualified electricians Inadequate repairs may result in a major source of danger for the user of the air conditoiner e Do not damage any parts of the air conditioner that carry refrigerant by piercing or perforating the air conditioner s tubes with sharp or pointed items crushing or twisting any tubes or scraping the coatings off the surfaces If the refrigerant spurts out and gets into eyes it may result in serious eye injuries Do not obstruct or cover the ventilation grille of the air conditioner Do not put fingers or any other things into the inlet outlet and swing louver Do not allow children to play with the air conditioner no case should children be allowed to sit on the outdoor unit MSAFETY PRECATIONS e Before starting to use the system read carefully this SAFETY PRECAUTIONS to ensure a proper operation of the system Safety precautions described here ar
21. the heat pump type air conditioner employs a method to circulate warm winds to warm the entire space of aroom it takes time before the room tem perature rises It is recommendable to start the operation a little earlier in a very cold morning MISTHE UNIT INSTALLED CORRECTLY Confirm the following items for safe and comfortable use of air conditioner The installation work is to be burden on the sales dealer and do not conduct it by yourself Installation place Avoid installing the air conditioner Install the unit at well ventilated Install the air conditioner firmly on near the place where possibility of place the foundation that can fully support inflammable gas leakage exists the weight of the unit Explosion Ignition may occur If some obstacle exist it may cause If not it may cause vibration or noise capacity reduction or noise increase Select the place so as not to annoy Snow protection work is necessary Itis advisable not to install the air con neighbor with the hot air or noise where outdoor unit is blocked up ditioner at the following special place by snow It may cause malfunction consult the sales dealer when you have to install the unit on such a place place where corrosive gas generates Hot spring area etc The place where salt breeze blows Seaside etc The place where dense soot smoke exists The place where humidity is extraordina
22. the installation manual to insure that it allows proper drainage and thermally insulate it to prevent condensation Inadequate plumbing can result in water leakage and water damage to interior items 26 m INSTALLATION MANUAL FOR INDOOR UNIT ANOTICE All Wiring of this installation must comply with NATIONAL STATE AND LOCAL REGULATIONS These instructions do not cover all variations for every kind of installation circumstance Should further information be desired or should particular problems occur the matter should be referred to your local distributor A WARNING BE SURE TO READ THESE INSTRUCTIONS CAREFULLY BEFORE BEGINNING INSTALLATION FAI LURE TO FOLLOW THESE INSTRUCTIONS COULD CAUSE SERIOUS INJURY OR DEATH EQUIPM ENT MALFUNCTION AND OR PROPERTY DAMAGE 1 Before installation Before finishing installation do not throw the attached parts installation needs Confirm the way to move the unit to the installation place Before moving the unit to the installation place do not remove their packages When have to remove the package use a soft material or protection board with rope to lift the unit assembly to avoid unit damage or bumping a scrape 2 Choose installation place 1 The chosen installation place should meet the following requirements and get the 5 consent Place ensures ideal airflow distribution e The passage of airflow has no obstacles When importing o
23. OFF Used to select sleep mode Used for unit start and stop Cautions Note On cooling only unit heating The above information is the explanation of mode is not available the displayed information therefore varies with those displayed in actual operation mPARTSAND FUNCTIONS O ation Buttons and display of the wire controller MODE FAN SWNG FAN SPEED TIMER ON OPERATING LAMP EAT FAN OPERATION CLOCK TEMP O O When unit is started for the first time clock should be adjusted as follows Press CLOCK button PM flashes e Press w to set correct time Each press will increase or decrease 1min If the button is kept depressed time will change quickly e After time setting is confirmed press SET AM PM stop flashing while clock starts working m OPERATION Theair conditioner has the function of POWER FAILURE RESUME Fan operation Enjoy yourself by just a gentle press 1 Unit start Press ON OFF button unit starts Previous operation status appears on display Not Timer setting Power indicator lights up 2 Select operation mode Press M ODE button For each press operation mode changes as follows COOL DRY HEAT FAN Unit will run in selected mode stop display at FAN For cooling only
24. affect your physical condition or cause some If you continue the operation without removing the health problems cause it could result in a trouble electric shock or fire AXCAUTI ON The system should never be used for Do not handle switches with a wet hand Combustion apparatus should not be placed Bodily injury could result by a collapse Bodily injury could result by a careless installation Since the internal fan is operating with a high speed it could cause an injury other purposes than intended such as for allowing a direct exposure to wind of air con preservation of food flora and fauna pre ditioner cision deices or work of art It could cause deterioration of food or other problems It could cause electric shocks Incomplete combustion could occur on the apparatus 3 m SAFETY PRECAUTIONS ASCAUTI ON Do not wash the air conditioner with wat Domina thesystemeretheal route Make sure to use a fuse of proper electric reaches directly the fl ora and fauna rating S 7 i i i It could cause electric shocks i i i i Use of steel or copper wire in place of a fuse is strictly prohibited because it could result in a trouble or fire accident It will not be good for their health A place something on it gas or liquid near the air condisir outlet grill is removed tioner or to spray it directly with the gas
25. at Pump model C ooling Only model gt A WARNING BE SURE TO READ THESE INSTRUCTIONS CAREFULLY BEFORE BEGINNING INSTALLATION FAILURE TO FOLLOW THESE INSTRUCTIONS COULD CAUSE SERIOUS INJURY OR DEATH EQUIPMENT MALFUNCTION AND OR PROPERTY DAMAGE BE SURE TO READ INSTALLATION MANUAL FOR INDOOR UNIT WITH THIS MANUAL 1 Accessories Edging Edging for protection of electric wires from an opening edge 2 Selection of the place of installation Select the place of installation satisfying the following conditions and at the same time obtain a consent from the client or user Place where air circulates Place free from heat radiation from other heat sources Place where drain water may be discharged Place where noise and hot air may not disturb the neighborhood Place where there is not heavy snowfall in the winter time Place where obstacles do not exist near the air inlet and air outlet Place where the air outlet may not be exposed to a strong wind Place surrounded at four sides are not suitable for installation A 1m or more of overhead space is needed for the unit M ount guide louvers to place where short circuit is a possibility e When installing several units secure sufficient suction space to avoid short circuiting 1 Open space requirement around the unit Servicing space outlet gt 11 2 Installation where the area with strong winds Install the unit so that the air outlet se
26. ation Pipe cover small field purchased for insulation accessory 30 m INSTALLATION MANUAL FOR INDOOR UNIT 9 When constructing drain piping for several units possible position the common pipe about 100 mm below approx 100 mm the drain outlet of each unit as shown in the sketch Use V P 30 11 4 or thicker pipe for this purpose The stiff pipe put indoor side should be heat insulated downhill grade of VP 30 1 100 or more f Avoid putting the outlet of drain hose in the places with irritant gas generated Do not insert the drain 9 hose directly into drainage where the gas with sulfur may be generated Backwater bend Because the drain spout is at the position which negative pressure may occur So with the rise of water level in the drain pan water leakage may occur In order to prevent water leakage we designed a backwater bend The structure of backwater bend should be able to be cleaned As the below figure shown use T type joint The backwater bend is set near the air conditioner As figure shown set a backwater bend the middle of drain hose H1 100mm or the static pressure of air sending motor H2 1 2H 1 or between 50 100mm Drainage Test Conduct a drainage test after completion of the electrical work 2 During the trial make sure that drain flows properly through the piping and that no water leaks from connections
27. ction of the unit must NOT be faced toward wind direction 3 Installation of outdoor unit 1 Installation Wind direction Fix the unit in a proper way according to the condition of a place where it is installed by referring to the following a Concrete foundation Foundation anchor Anchor bolt Concrete foundation To fix by bolts Note 1 Give enough room for the concrete Note 1 Place the concrete foundation deep enough foundation to fix by anchor bolts e Install the unit so that the angle of inclination must be less than 3 degrees 292 m INSTALLATION MANUAL FOR OUTDOOR UNIT Check joint Flare connection 4 Refrigerant piping 1 Outline piping Indoor H Outdoor unit unit lt pk 2 Piping size pipe connection _ HDU 24H03 H M odel HDU 42H03 H HDU 28H03 H Gas piping 19 05 3 4 1 15 88 5 8 x1 0mm Liquid piping 9 52 3 8 x0 8mm_ 9 52 3 8 0 8 e Install the removed flared nuts to the pipes to be connected then flare the pipes 3 Limitations for one way piping length and vertical height difference One way piping length less than 30m HDU 24H03 H HDU 28H03 H less than 50m for HDU 42H03 H Vertical height difference Less than 15m for HDU 24H03 H HDU 28H03 H less than 30m for HDU 42H03 H Precautions for refrigerant piping
28. e electric shocks and fires Execute the installation accurately based on following the installation manual A gain improper installations can result in water leakage electric shocks and fires When a large air conditioning system is installed to a small room it is necessary to have a prior planned countermeasure for the rare case of a refrigerant leakage to prevent the exceeding of threshold concentration In regards to preparing this countermeasure consult with the company from which you perchased the equipment and make the installation accordingly In the rare event that a refrigerant leakage and exceeding of threshold concentration does occur there is the danger of resultant oxygen deficiency accident For installation confirm that the installation site can sufficiently support heavy weight When strength is insufficient injury can result from a falling of the unit Execute the prescribed installation construction to prepare for earthquakes and the strong winds of typhoons and hurricanes etc Improper installations can result in accidents due to a violent falling over of the unit For electrical work please see that a licensed electrician executes the work while following the safety standards related to electrical equipment and local regulations as well as the installation instructions and that only exclusive use circuits are used Insufficient power source circuit capacity and defective installation execution can be the cause of electric
29. e between return air and supply air for indoor unit 26 m INSTALLATION MANUAL FOR INDOOR UNIT E E Safety precautions e Please read these Safety Precautions first then accurately execute the installation work e Though the precautionary points indicated herein are divided under two headings and CAUTION those points which are related to the strong possibility of an installation done in error resulting in death or serious injury are listed in WARNING section However there is also a possibility of serious consequences in relationship to the points listed in the CAUTION J section as well In either case important safety related information is indicated so by all means properly observe all that is mentioned e After completing the installation along with confirming that no abnormalities were seen from the operation tests please explain operating methods as well as maintenance methods to the user customer of this equipment based on the owner s manual Moreover ask the customer to keep this sheet together with the owner s manual A WARNING e This system should be applied to places as office restaurant residence and the like A pplication to inferior environment such as engineering shop could cause equipment malfunction Please entrust installation to either the company which sold you the equipment or to a professional contractor Defects from improper installations can be the cause of water leakag
30. e classified to AWARNING and AACAUTION Precautions which are shown in the column of AWANING means that an improper handing could lead to a grave result like a death serious injury etc However even if precautions are shown the column of A CAUTION avery serious problem could occur depending on situation ake sure to observe these safety precautions faithfully because they are very important information to ensure the safety e Symbols which appear frequently in the text have following meanings Strictly prohibited Q Observe instructions faithfully 6 Provide a positive grounding When you have read through the manual keep it always at hand for read consultation If the operator is replaced make sure to hand over this manual to the new operator E CAUTIONS FOR INSTALLATION A WARNI NG The system should be applied to places as The system should be installed by your Vhenyouneedsone opti onal devi ces such as a hu office restaurant residence and the likedealer or a professional installer ridifi er electri cheater etc besuretousetheproducts vhi ch are recommended by us These devi ces shoul d be attached by a professional installer Installation by yourself is not encouraged because it could cause such problems as water leakage electrical shock or fire accident by some improper handing Application to inferior environment such as an engi neering shop could cause eq
31. ed TIMER mode or OFF To cancel TIMER mode 3 Timer setting PressTIME button A Every time the button is pressed time increases 10min If button is kept depressed time will change quickly W Every time the button is pressed time decreases 10min If button is kept depressed time will change quickly Time will be shown on LCD It can be adjusted within 24hours 4 Confirming your setting After setting correct time press SET button to confirm ON or OFF stops flashing Time displayed U nit starts or stops at x hour x min ON or OFF Timer mode indicator lights up Just press TIMER button several times until TIMER mode disappears Hints Wire controller possesses memory function when use TIMER mode next time just press SET button after mode selecting if timer setting is the same as previous one ll mOPERATION mann M uu TIMER ON OFF 1 A fter unit start select your desired 4 Time confirming for TIMER ON operation mode After time setting press TIMER button to confirm Operation mode will be displayed on LCD ON stops blinking While OFF starts blinking Power indicator lights up 2 Press button to change TIMER Time displayed Unit starts at X hour X min mode 5 Time setting for TIMER OFF Every time the button is pressed display changes as follows Follow the same procedures in Time setting for TIMER ON L
32. eiving Isn t the earth leakage switch adjust cut in normal section exposed to the breaker in action direct sunlight or strong illumination Itis dangerous Turn off the power supply switch Power supply switch is immediately and contact not ON the sales dealer Cooling or heating is not sufficient Is the thermostat adjust Isn t the air filter dirty Isn t any doors or windows Doesn t any obstacle as required left open exist at the air inlet or outlet Isn t the swing louver Cooling is not sufficient horizontal At HEATING mode Isn t sun shine invading Isn t any unexpected Isn t the room much If swing louver is horizontal direct heating load generated crowded the blow wind does not reach floor The wind does not blow during heating operation Isn t it warming up page 9 W hen the air conditioner does not operate properly after you have checked the above mentioned items or when the following phenomenon is observed stop the operation of the air conditioner and contact your sales dealer The fuse or breaker often shuts down Water drops off during cooling operation There is airregularity in operation or abnormal sound is audible When CHECK lamp red flickers an irregularity has occurred in the air conditioner E9 outdoor board communication N ote This unit has a function of automatic restart system after recoverin
33. er set it up on the air conditioner ACAUTION Do not dry the air filter with fire Do air conditioner without the air filter Careand Cleaning of the unit e Clean with soft and dry cloth If itis very dirty dissolve neutral detergent the lukewarm water make the cloth wet with the water After wiping clean off the detergent using clean water Post Season Operate the unit with FAN mode on a fair day for about half a day to dry the inside of the unit well Stop operation and turn off the power supply switch Electric power is consumed even the air conditioner 15 in stop Clean the air filter and set it in the place Care See that there are no obstacles blocking the air inlet and air outlet of both indoor and outdoor units Make sure that the air filter is not dirty Cutin the power supply switch 12 hours before starting run aTe FOR PREPARATION OF HEATING HOT KEEP HOT 15 operated in the following cases When heating is started In order to prevent blowing out of cool wind the indoor unit fan stopped according to the room temperature which heating operation is started Wait for approx 2 to 3 minute and the operation will be automatically changed to the ordinary heating mode Defrosting operation in the heating mode When
34. g power stoppage Please contact the sales dealer if it is not required 15 m MALFUNCTION The followings are malfunction When the air conditioner is started when the compressor starts or Water flowing Sp gt his stops during operation or when the air conditioner is stopped it 0 sound is heard sometimes sounds shuru shuru or gobo gobo It is the flowing sound of the refrigerant and it is not a trouble Cracking sound is heard This is caused by heat expansion or contraction of plastics It smells Air which blows out from the indoor unit sometimes smells The smell results from residents of tobacco smoke or cosmetics stuck inside of unit white fog comes edible oil fume is always exists white fog sometimes blows out out of indoor unit of air outlet during operation In this case consult sales dealer for cleaning the heat exchanger During operation W hen the air conditioner is used at restaurant etc where dense Itis switched into the FAN mode To prevent frost from being accumulated on the indoor unit heat during cooling exchanger it is sometimes automatically switched to the FAN mode but it will soon return to the cooling mode The air conditioner can not be Even if the operation switch is turned on cooling dehumidifying restarted soon after it stops or heating is not operable for three minutes after the conditioner is stopped Because the protecting
35. l charge amount calculation ae the additional charge amount when the piping length is 25 m 0 a 12 Additional charge amount kg charge amount per 1m kg m that additional refrigerant charge is not required Total length of the piping one way Additional charge amount of refrigerant 0 70kg Calculate the amount any case If air perge with the refrigerant is forbidden at the local please use the vacuum method Please see the below figure 2 way valve 2 way valve To use vacuum pump Detach the service port s cap of 3 way valve the eu EY 5 valve rod s cap for 2 way valve and 3 way s connect KA se Gaugemanifold the service port into the projection of charge hose low for gaugemanifold Then connect the projection of charge hose center for gaugemanifold into vacuum pump Vacuum pump Open the handle at low in gaugemanifold operate vacuum pump If the scale moves of gause low reach vacuum condition in a moment check again Vacuumize for over 15min And check the level gauge which should read 0 1 M Pa 76 cm Hg at low pressure side After the completion of vacuumizing close the handle L o in gaugemanifold and stop the operation of the vacuum pump Check the condition of the scale and hold it for 1 2min If the scale moves back in spite of tightening make
36. le of the method of choosing capacity number 1 If the unit is in high speed operation needing take outer static pressure is 180Pa in capacity air volume 34m min as working condition point according to Figure II 1 The characteristic chart of air volume the capacity number of fan controller is No 2 2 If the unit is in low speed operation needing take outer static pressure is 60Pa in capacity air volume 32m min as working condition point according to Figure II 1 The characteristic chart of air volumei the capacity number of fan controller is No 4 34 m INSTALLATION MANUAL FOR INDOOR UNIT 11 Refrigerant pipe The air side pipe liquid side pipe must be faithfully heat insulated if no heat insulation it may cause water leakage The outdoor unit has been charged with refrigerant When connect the pipe to the unit or dismantling the pipe from the unit please follow the figure shown use spanner and torque spanner together When connect cone nut the inner side and outside of cone nut should paste with refrigerant oil Use hand to twist 3 4 rings then fasten with spanner Referring to Table to confirm the fasten torque too tight may damage nut leading to leakage Check if the connection pipe leaks then do heat insulation treatment as below figure shown Only use seal cushion to bind the joint part of air pipe and heat insulation parts Paste the refrigerant oil here Middle size seal cushion acce
37. nt so that the relation between 0 5 mm the lower surface of the unit proper and water 0 0 2 level in the hose becomes as given below Bring the piping side slightly lower b Unless the adjustment to the levelness is made properly malfunctioning or failure of the float switch may occur PVC hose 5 Drain Piping a Drain piping should always be in a downhill grade 1 50 1 100 and avoid riding across an elevation or making traps e Good piping Inproper piping Suspension 2 Avoid riding across elevation bolts 1 5m 2 Air vent free from traps Do not pipe under water Heat A downhill grade insulation of 1 100 or b When connecting the drain pipe to unit pay suffcient attention not to apply excess force to the piping on the unit side A Iso fix the piping at a point as close as possible to the unit Stage For drain pipe use hard PVC general purpose pipe V P 25 1 D 1 which can be purchased locally W hen connecting insert a PV pipe end securely into the VP 25 joint drain socket before tightening securely using the cman attached drain hose and clamp Adhesive must not Mainunit accesso ziz zz be used connection of the drain socket and drain a Drain socket Er i vb 25 hose accessory i Drein hose accessory Adhesion Pipe cover for insul
38. ould leave a checking meatus for checking and maintenance 9 The examples of improper installation Do not use air in duct and take the ceiling inner side instead The result is because of the irregular outer air mass strong wind and sunshine the humidity is increased There may be water drop on the outside of duct For cement and other new constructions even if not taking ceiling inner side as duct the humidity will also be so high At this time use glass fiber to perform heat preservation to the whole use iron net to bind the glass fiber exceeding the unit operation limit for example when indoor dry bulb temperature is 35 C wet bulb temperature 24 it may lead to overload of compressor Affected by the capacity of air discharging fan the strong wind in the outer duct and wind direction when unit air sending volume exceeds the limit the discharged water of heat exchanger will overflow leading to water leakage ox N VY Air discharging fan Improper example 33 m INSTALLATION MANUAL FOR INDOOR UNIT 10 The operation method of fan controller Through the fan controller switch in the electric box the air volume of this unit can be continuously adjusted Itis unnecessary to adjust air volume through the duct side wind level unit outside static adju
39. pework of your air conditioner does not get damaged prior to being picked up by the relevant waste disposal center and contribute to environmental awareness by insisting on an appropriate anti pollution method of disposal Disposal of the packaging of your new air conditioner All the packaging materials employed in the package of your new air conditioner may be disposed without any danger to the environment The cardboard box may be broken or cut into smaller pieces and given to a waste paper disposal service The wrapping bag made of polyethylene and the polyethylene foam pads contain no fluorochloric hydrocarbon All these valuable materials may be taken to a waste collecting center and used again after adequate recycling Consult your local authorities for the name and address of the waste materials collecting centers and waste paper disposal services nearest to your house Safety Instructions and Warnings Before starting the air conditioner read the information given in the User s Guide carefully The User s Guide contains very important observations relating to the assembly operation and maintenance of the air conditioner The manufacturer does not accept responsibility for any damages that may arise due to non observation of the following instruction Damaged air conditioners are not to be put into operation In case of doubt consult your Supplier e Use of the air conditioner is to be carried out in
40. rked on the name plate Valve rod cap ervice port 5 Electric wiring of aoe A WARNING DANGER OF BODILY INJURY OR DEATH TURN OFF ELECTRIC POWER AT CIRCUIT BREAKER OR POWER SOURCE BEFORE MAKING ANY ELECTRIC CONNECTIONS GROUND CONNECTIONS MUST BE COMPLETED BEFORE MAKING LINE VOLTAGE CONNECTIONS 1 Selection of size of power supply and interconnecting wires Precautions for Electric wiring e Electric wiring work should be conducted only by authorized personnel Do not connect more than three wires to the terminal block Always use round type crimped terminal lugs with insulated grip on the ends of the wires e Use copper conductor only Select wire sizes and circuit protection from table below This table shows 20 m length wires with less than 2 voltage drop Circuit breaker Earth leakage breaker Power source Phase Switch breaker Overcurrent protector wire size Switch Leak rated capacity A minimum breaker current HDU 42H03 H HDU 24H03 H HDU 28H03 H m INSTALLATION MANUAL FOR OUTDOOR UNIT 2 Wiring connection M ake wiring to supply power to the outdoor unit so that the power for the indoor unit is supplied by and terminals Circuit breaker Earth leakage ndoor breaker 9 unit Outdogr Outdoor Circuit breaker unit Earth leakage Indoor breaker unit FH 2 HDU 24H03 H es
41. ssory Use seal cushion to _ x lt bind the pipe joint 24 Clamp H eat insulation accessory A 2K for liquid pipe 2 insulation accessory for gas pipe Gas pipe Liquid pipe 80 510 Gas pipe Electric box gt Air inlet Air outlet gt Drain hose connection mouth VP25 PVC pipe Specification of pipe Tighten torque Cone dimension mm A mm 9 5 3270 3990 333 407 kgf cm 120712 4 P15 88 9720 11860 N cm 990 1210 kgf cm 22 9 23 3 35 OTHER INSTRUCTION AND TEST RUN Other instruction 1 Power supply e The air conditioner must use a special power circuit The user should provide by himself with special switch 25A 30A grounding wire The wiring should be done by a qualified electrician according to the wiring rules specified by national standard e An creepage breaker should be installed The grounding wire and null wire of the power cord should be strictly separated It is incorrect to connect the null wire with grounding wire 2 Cut and flaring method A Flarer Use pipe cutter to cut the pipe the burrs must be removed 77 After inserting the flarer perform flared nut Pipe diameter Dimension A mm Liquid pipe 9 52mm 3 8 1 0 1 2 19 05 3 4 1 4 2 2 Gas pipe 15 88mm 5 8
42. stment The air volume set should be in the operation air volume range Figure shows the position of fan controller in the electric box and operation method After finishing the electric work perform test run A ccording to the main points in Figure II making the chosen switch No accordant And confirm if it reaches the needed air volume N ote 1 When operating the fan controller it is possible to touch the electric charging part so do cut off the power supply 2 Do not set the dial at the position less than 1 3 The figure circled in Figure II indicate the capacity number of fan controller The non listed capacity number may exceed the permitted operation capacity range so it is impossible to operate 4 When delivering from factory the capacity number of fan controller is set ati 5 Rotate this switch capacity number setting No 1 No 8 High Condition of standard air volume Low air volume 100Pa Example of duct Once the fan controller has trouble this linker can perform emergency assistant control When this linker is connected to the linker from the g 100 Z PCB it can operate with total load When this linker is connected to the linker cs Emi from the PCB through Lower limit Upper limit the fan speed adjustment panel speed Figure 1 Standard air volume m min Figure 2 The examp
43. type HEAT function Hints MODE FAN SWNG SET a SLEEP FILTER RESET RESET 3 Fan Press FAN button For each press fan speed changes as follows Unit will run at selected fan speed 4 Unit stop Press ON OFF button Only time and room temp remains on LCD All indicators go out Vertical flap closed automatically Wire controller can memorize settings in each operation mode To run it next time just select the operation mode and it will start with the previous setting reselecting is needed TIMER ON OFF needs reselecting In FAN mode temp can t be set AUTO RUN COOL HEAT and DRY operation Recommendations e Use COOL in summer Use HEAT in winter e Use DRY spring autumn and in damp climate 1 Unit start 4 Fan speed selection press ANIRE l Press FAN button For each press fan speed changes Previous operation status appears on display as follows Not Timer setting Power indicator lights up AUTO 2 Select operation mode Press MODE button For each press operation mode LOW MID HIGH AUTO changes as follows Unit runs at the speed displayed on LCD In HEAT mode warm air will blow out after a short 7 3 F period of time due to cold draft prevention function AUTO COOL DRY HEAT FAN In DRY mode when room temp becomes 2 higher Unit will run in
44. uipment malfunction and Installation by yoursaf is not encouraged because it serious injury or death could cause such problems as water leakage electrical shock or fire accident by some improper handing AXCAUTI ON Do not install nearby the place where Depending on the place of installation Brain pipe should be arranged to provide a have leakage of flammable gas circuit breaker may be necessary positive draining 1 Unless the circuit breaker is installed could If the pipe is arranged improperly furniture or the If the gas leakes and gathers around it may cause the fire cause elecrical shocks likes may be damaged by leaked water Where strong winds may prevail the Install on the place where can endure Make sure the systemis grounded system should be fixed securely to preventthe weight of air conditioner a collapse Grounding cable should never be connected to a gas pipe city water pipe lightning conductor rod or grounding cable of telephone If the grounding cable E CAUTIONS FOR OPERATION is not set properly it could cause electric shocks A WARNI NG You should refrain from exposing your Do not poke the air inlet or outlet withWhen any abnormal condition scorching smell or oth directly to cool wind for a long time etc ers is found stop the operation immediately and turn off the power switch Then consult your dealer It could
45. utside air it should be imported directly from outdoors if the pipe can not be extended it also can not be imported from top e Place ensures enough space for maintenance e The pne between indoor and outdoor unit is in the permitted limit referring to outdoor unit installation part The indoor unit outdoor unit electric wire and connection wire is at least 1m away from television and radio This is to avoid the image disturbance and noise caused by the above mentioned home appliance Even if 1m away if the electromagnetic wave is too strong it can also cause noise 2 The height of ceiling The indoor unit can install on the ceiling which height is no more than 3m 3 Install and use the hoisting screw Check if the installation place can bear the weight of unit assembly e f not certain strengthen it before install the unit Over 100 Over 900 Checking meatus Air outa 600x600 Over 300 Over 200 Airin Ceiling 28 m INSTALLATION MANUAL FOR INDOOR UNIT 3 Preparation before installation 1 The position relation among hoisting screw unit mm 360 890 HDU 24H03 H HDU 28H03 H Down side 360 250 HDU 42H03 H Down side Up side 1103 2 If necessary cut the opening installation and checking needed on the ceiling If has ceiling Before installation finish the preparation work of all the pipes refrigerant drainage and
46. vice valve charge port with the service valves both liquid and gas side of the outdoor unit fully closed 3 After vacuuming remove the cap nut for the valve stem and tighten the cap nuts cap nuts for valve stem and charge port with service valve both liquid and gas fully opened 5 M ethod of opening and closing service valve of outdoor unit Open 1 Remove the hexagonal cap nut 2 Operate the valve using a hexagonal wrench to open by left turn and to close by right turn i 3 Tighten the hexagonal cap nut after the piping works Hexagon wrench attachment 23 m INSTALLATION MANUAL FOR OUTDOOR UNIT 6 Additional charge of refrigerant Outdoor unit is precharged at a factory for the piping length up to 5m charge is not required up to 5m Basic Factory charge amount Additional Length that Maximum refrigerant ofrefrigerant charge additional piping charge amount chargeisnot amount Outdoor unit Indoor unit per meter required HDU 42H03 H Ma Heat pump HDU 24H03 H HDU 28H 03 H 3 2 4 viii Notes i Basic refrigerant charge amount means refrigerant amount when refrigerant piping length is 5m ii When the refrigerant piping length exceeds the length that additional refrigerant charge is not required charge additional refrigerant based on to the calculated amount of refrigerant per unit piping length Example of additiona
47. wire wire controller connection wire indoor and outdoor unit connection wire of indoor unit so that after installation they can be immediately connected with outdoor unit Cut the opening on the ceiling aybe it needs to strengthen the ceiling to keep the ceiling even and flat and prevent the ceiling from vibration For details please consult to the builder 3 Hanger bolts installation Use care of the piping direction when the unit is installed Use M 10 screw bolt Hole in anchor Insert In order to bear the weight of the unit for existed plug ceiling using foundation screw bolt for new ceiling 2 using burying embedded screw bolt burying screw bolt or spot supplied other parts Before going on installation adjust the gaps with ceiling hr Concrete Hanging bolt M 10 29 m INSTALLATION MANUAL FOR INDOOR UNIT 4 Installation of indoor unit e Fix the indoor unit to the hanger bolts If required it is possible to suspend the unit to the beam etc Directly by use of the bolts without using the hanger bolts W hen the dimensions of main unit and ceiling holes does not match it can be adjusted with the slot holes of hanging bracket Adjusting to the levelness Piping side Supply water Hanging bolt M 10 washer M 10 nut Main unit M 10 spring washer a Adjust the out of levelness using a level or by the following method Water level e Make adjustme
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