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INSTALLATION MANUAL - CARDIFF Air Conditioning

1. Over 1000 mm gt 20 m gt 20 mm lt 500m lt 500mm Over 1000 mm Top view of the outdoor unit multiple units installed Figure 13 Q NOTE 1 In case any obstacles exist above the outdoor unit such obstacles must be 2000mm above the outdoor unit 2 If miscellaneous articles are piled around the outdoor unit such articles must be 400mm below the top of the outdoor unit 5 3 Conveying outdoor unit 5 3 1 Use 4 steel ropes of a 6mm or bigger size to hoist the outdoor unit and convey it into the room 5 3 2 In order to prevent scratch and deformity the outdoor unit apply a guard board to the surface of contact between the steel wire and the air conditioner 5 3 3 Remove the cushion for use in the transport after finishing the transport Figure 14 The hole for fork truck Base bracket e The distance of the foundation bolt is shown in the following figure 1288mm Figure 15 Snow protection facilities must be installed in the snowfall areas See the figure in case the snow protection facilities are incomplete faults may occur In order to prevent influence caused by snow set up raised pavilion and install snow protection sheds at the air inlet and11 0 air outlet Snow protection Snow protection shed atthe airinlet shed atthe air outlet shed atthe airinlet Fi 16 5 4 Refrigerant pipe m 5 4 1 The refrigerant pipe adapter is located inside the outdoor unit So
2. Material name Air outlet AT 4s Air outlet S TEN Z N Air outlet eo Rectangular A IN Round sy Linear diffuser Duct wrapping tape Am 2 Aluminium adhesive tape Auxiliary materials Characteristics advantages and 1 Fixed model that diffuses air ata 360 angle 2 The outline size should increase when the air volume is over 350CMH for above 303 i e When about 9 diffusers are required the outline size should increase 3 Proper air speed For air speed of over 2 3 5m s select other diffusers with greater noise 4 Install the diffuser pipe if it is necessary to install the model of over 3 5m s 5 For purpose of cooling only model 1 The lengthwise adjustable model which diffuses airat a 360 angle 2 With the changeof the cooling heating air flow the horizontal and vertical distance of thefan can be adjusted applicable to department store and exhibition hallwhere the decorative effect isessential 1 Low noise comparedwith other air outlets Applicableto tall buildings that require along distance of air conditioning 2 Select the ventilationpipe connection calibre according tothe distance and the airspeed 3 Applicable tostorey height of ove 5m for design oftall storeys such as temple consult Midea 1 The fan is the adjustable type which can change direction of air flow It is used for deluxe decoration 2 The outline size should increase when the a
3. Sa Sa Meeting room a ee ae z aa Taa Ees E Construction and ventilation pipeline design scheme Figure 3 1 Use 10 or bigger screws The screw material is high quality carbon steel whose surface is zinc plated or undergoes other rustproof treatment or stainless steel 2 The treatment of the ceiling varies between buildings For detailed measures consult with the fitting out staff 3 Fix the pendant bolts firmly and reliably in light of the specific situation 4 Installation of the pendant bolt in different environments Wooden structure New concrete roughcast Put rectanglar sticks across the beams and set pendant bolts Set it with embedded bushes or embedded bolts Wooden span Ceiling Pendant bolt Blade plug in unit Slide plug in unit Figure 4 Figure 5 Installation manual Installation manual 11 12 METHODS OF CONFIGURING AND SELECTING INSTALLATION Material name Air inlet wooden grille Hose for absorbing noise Air outlet noise pipe eee pin Qe M me y aT aiii pe i a ae ed oe e m sae emmae mt ge ee Distributor gt ts w A i Characteristics advantages and 1 Install the filter at the main body grille in case the storey height is low and at the main body of the indoor unit in case the storey height is high 2 It cleans conveniently at the time of installing uninstalling the filter 3 The button structu
4. pipe or valve 6 No power cable is attached to this equipment The user can select the power cable by reference to the stipulated power supply specifications No joint of wires is allowed 7 Upon completion of wire connection double check it and then connect the power supply 11 2 Specifications of power supply INDOOR UNIT OUTDOOR UNIT Model BSAH 150HR UCV 150HT Power 220 240V 50Hz 380 415V 3N 50Hz Switch capacity of the main power supply fuse A 40 20 60 50 Indoor unit power cable RVV 300 500 amy 3x2 5 mm Includes grounded wire l Outdoor unit power cable YCW 450 750 ant 5x9 mm Includes grounded wire Connective wire between indoor RVV 300 500 unit and outdoor unit mm 4x1 mm Wire controls RVVP 300 300 connective wire mm 5x0 5 mm Shielded wire 11 3 Power wires The power wires are as follows Schematic diagram Indoor unit Control wire between indoor unit and outdoor RCCB Manual switch 5 4 Refrigerant pipe Air return duct not encloused part optional part Water discharge vent p 16 Refrigerant connective pipe o 35 Refrigerant connective pipe Electric control box Remote controller LI o000 capacity box Noise mute box not encloused part optional part Air outlet duct Main unit signal connective wire between indoor unit and outdoor unit e Remote signal receiving panel Fix rate wire controller not encloused part opti
5. Open the gas valve and the liquid valve Connect the power supply to preheat the air conditioner OUO O O OUOU LI 14 3 Install the remote controller holder as required by the user The holder must be installed in a location suitable for transmitting the signals of the remote controller to the indoor unit 14 4 Trial run Use the remote controller or wire controller matched to let the air conditioner run in the cooling mode Inspect the following items against the operation manual If any fault occurs remove the fault by reference to the Section headed Faults of Air Conditioner and Causes in the Operation Manual Indoor unit 1 Check whether the switch of the remote controller or wire controller is normal 2 Check whether the functional keys of the remote controller or wire controller are normal 3 Check whether the indoor temperature conditioning is normal 4 Check whether the indicators illuminate normally 5 Check whether the manual operation buttons are normal 6 Check whether the drain function is normal 7 Check whether the connective copper pipes and the drain pipes generate condensate due to loose wrapping 8 Open the air inlet grille to check whether any penetration or leak of water occurs especially at the drain stopper 9 Check whether any vibration or abnormal sound occurs during the operation 10 Test whether the unit works normally in the heating mode Outdoor unit 1 Check w
6. a stopper and a structure that cleans up trash easily 10 2 Trial draining of the drain pipe Open the side panel of the indoor unit fill water inward and check whether the water can be drained smoothly Check water leak at the joint 10 3 Heat insulation of drain pipe 10 3 1 After making sure that the water drains smoothly and no water is leaked use adiabatic wool bushes to preserve heat of the drain pipe Otherwise condensate will occur 10 3 2 Ensure the thermal insulation material is coated on the water drain pipe which part through inside of house 10 3 3 Make sure the water drainage pipe be termal insulated 11 ELECTRIC CONNECTION 11 1 Electric wiring A CAUTION 1 Use special power supply for the air conditioner Design power supplies specific to the indoor unit and outdoor unit The supply voltage must comply with the nominal voltage 2 The external supply circuit of the air conditioner must have a ground wire and the power supply ground wire of the indoor unit must be connected with the external ground wire firmly 3 The wiring must be performed by professional technicians according to the circuit diagram 4 Distribute the wires according to the relevant electric technical standards promulgated by the State and set the Residual Current operated Circuit Breaker RCCB properly 5 The power wire and the signal wire shall be laid out neatly and properly without mutual interference or contacting the connection
7. car or cabin D Place like kitchen where oil permeates E Place where strong electromagnetic waves exist F Place where flammable gases or materials exist G Place where acid or alkali gases evaporate H Other special environments A CAUTION After installing the air conditioner properly the installer shall demonstrate how to use and maintain the air conditioner correctly to the user and then prompt the user to read the operation manual and installation manual properly A WARNING Practice shows that most problems of using the duct air conditioner are caused by improper installation Improper installation cannot ensure normal operation of the air conditioning unit and it is costly Precautions before installation Decide the correct way of conveying the equipment Try to transport this equipment with the original package to correct Msuch problems Therefore attach importance to If the air conditioner needs to be installed ona metal part of the installation building electric insulation must be performed and the installation must meet the relevant technical standards of electric devices 3 ACCESSORY INDOOR UNIT Note If in the wire control mode the accessories do not include display panel assembly remote controller or mounting bracket Accessory name Quantity Purpose Midea Commercial Air Conditioner User Service Guide OWNER S MANUAL 1 must be delivered to the customer Installation Manual This
8. fault indicator of the outdoor electric control board will light up For details see Outdoor unit wring diagram on the cover plate of the electric control box 2 After shifting the phase sequence power on the unit until the fault indicator goes out and the compressor starts up normally Installation manual 9 9 5 Procedure of using stop valve Open the spool until it touches the stop block Do not attempt to open further e Use a spanner or a similar tool to tighten the bonnet e The bonnet tightening torque is shown in above Table Tightening torque Upon completion of installation open all valves before trial run Each unit has two valves of different sizes located at the outdoor unit side Of the two valves one is gas valve and the other is liquid valve The procedure of opening closing the valve is shown in the right figure Figure 29 1 Procedure of opening the valve Open the square head cover use a spanner to capture the square head and open it thoroughly Then tighten the square head cover 2 Procedure of closing the valve Same as the procedure of opening the valve but rotate the spanner clockwise thoroughly 9 6 Refrigerant charged volume 1 Refer to the nameplate of the unit for refrigerant volume provided that one way length of the pipe is no more than 5m 2 Please refre to the following table for refrigerant volume provided that one way length of the pipe is longer than 5m R22 additional
9. pipelines carefully lest damage to the pipes 8 2 2 Make a vacuum of connective pipeline 8 2 3 After the above steps are completed the spool of the valve of the outdoor unit should be completely open and the refrigerant pipeline of the indoor unit and the outdoor unit should be smooth 8 2 4 Use a leak detector or soap water detect leak carefully to prevent leakage 8 2 5 Put on an adiabatic envelope accessory at connective pipe adapter of the indoor unit and wrap it tight with the wrapping tape lest condensate and leakage Installation manual 6 8 3 Flare a Use a pipe cutter to cut off the pipe OXXX Slant Coarse Burr 5 Figure 23 x b Pull the pipe into the rear flare of the connective nut o N ot Kp Y lt L Figure 24 90 4 8 4 Tighten the nut Align with the connective pipe e Screw up the connection pipe nut manually and use a spanner to tighten it as shown in Figure 25 Figure 25 Q NOTE According to the installation conditions too large torque will damage the flaring and too small torque will lead to looseness and leakage Determine the tightening torque by reference to the following table To external dime Tighten torque N m Additional tighten torque NAT 24 5 2 5 kgf m 29 4 3 0 kgf m 49 0 5 0 kgf m 53 9 5 5 kgf m 78 4 8 0 kgf m 98 0 10 0 kgf m 98 0 10 0 kgf m 117 7 12 0 kgf m 9 EXPELLING AIR 9 1 From the following table select a method of e
10. remove the left front board first four M6 screws one M4 screw 5 4 2 The pipe can be connected from the front left lower side or the bottom notch of the outdoor unit 5 4 3 When the pipe is connected from the front side the pipe can be led out through the pipe amp wire panel 5 4 4 In case the pipe is connected from the bottom notch install it leftward rightward or backward after leading it out 5 4 5 When the pipe is led from the front use a cover plate to seal the bottom notch in order to prevent intrusion of dust or trash 1 Bottom plane for piping nt DIDS ett pi N 19 right PO ipe gt ax qet Pt a Figure 17 Cover plate prepared by the user X Bottom plane Figure 18 Q NOTE When welding the refrigerant pipe in order to prevent internal oxidation of the pipe nitrogen must be filled in Otherwise the oxidized chips may block refrigerating circulatory system Installation manual 4 11 4 Electric wiring diagram Indoor Unit Outdoor unit Q NOTE Display board E Fixed rate wire T controller option S koord cable 5 cord shielded cable RVV 300 500 4 1 Omm RVVP 300 300 5X0 5n 3 cord cable RWV 300 500 32 5mm Power supply 220V SOHZ 5 cord cable YCW 450 750 5 9mm Power supply 380 415V 3N 50HZ 1 Pay attention to the phase sequence of the power supply If the phase sequence is reversed the compressor will not start Meanwhile the
11. the adiabatic pipe and then expose the pipe wrap the pipe with the wrapping tape after bending it e The radio of the elbow pipe should be as large as possible to prevent flattening or crush e Use the pipe bender to make close elbow pipe 7 AIRTIGHT TEST Charge pressure nitrogen or R22 gaseous refrigerant for airtight test after finish the connection procedure between indoor unit and outdoor unit Q NOTE 1 Airtight test empoly aerocrete pressure 2 9MPa 30kg cm G 2 Screw up the spools of high valve and low valve before gas pressurization 3 Pressure the gas from the ventilated orifice of low pressure valve 4 During the gas pressurization please keep the high pressure valve and low pressure valve in closed status 5 Application of Oxygen flammable gas or toxic gas for airtight test are forbidden 6 Please employ soapy water or leakagemeter for air leakage detection of all junctions 8 PIPING THERMAL INSULATION Prevent malfunctions from condensation by refrigerant piping and water drain tubes please be sufficiently perform the condensate prevention of thermal insulation operation Q NOTE 1 Applicate normal thermal insolution materials as well as additional thermal insulation cotton which thickness at least 10 mm 16 20 kg m for refrigerant piping and water drain tube thermal insulation provided that the ceiling temperature condition would be in high temperature and high humidity Dew point te
12. user manual Throttling assembly Connection system Drip pipe Connect to the drain pipe Display panel subassembly Receive remote controller signal Sheath of refrigerant lead in lead out pipes Remote controller T battery Installation manual Precautions of operating the remote controller 13 CONSTRUCTION AND VENTILATION PIPELINE DESIGN SCHEME e Do not throw or slam the remote controller e Operate the remote controller within the receiving scope of the indoor unit and direct the transmitting part of the remote controller to the receiver of the indoor unit e The remote controller should be over 1m away from the television or sound box Do not place the remote controller at a moist place near the heat sources such as stove or expose it directly in the sunlight e Ensure correct positive and negative poles when loading the batteries 4 INSTALLING THE INDOOR UNIT E Examples of construction and ventilation pipeline design scheme 4 1 Installation space Flowering hidden series Ensure enough space required for installation and maintenance LMLLLLLLLL LLL m 1 Maintenance space Note Ensure that the minimum drain gradient is over 1 100 Inspection orifice Corridor Document reference room Inspection orifice Figure 1 Figure 2 4 2 Install p10 pendant bolts or ground bolts
13. CONSTRUCTION AND VENTILATION PIPELINE DESIGN SCHEME 14 TRIAL RUN OUTDOOR UNIT Install the unit where enough space of installation and maintenance is available e Install the unit where the air inlet and air outlet are free from obstacles and strong wind e Install the unit in a dry and well ventilated place Install the unit where the bearing surface is level and can bear weight of the unit and is suitable for installing the unit horizontally without increasing noise or vibration e Install the unit where the operation noise and the expelling of air do not affect neighbours Install the unit where no flammable gas is leaked Install the unit where it is convenient for pipe connection and electric connection 1 PRECAUTIONS e Read this user manual carefully before installing the equipment e The air conditioner must be installed by professional technicians e When installing the indoor unit and its accessory pipes adhere to this user s manual as far as possible e Inspect and make sure the piping and cabling are correct before pair conditioner A e This information may change with the update of this machine and CAUTION no further notice will be given for such change Installing the equipment in any of the following places may lead to faults of the equipment if that is inevitable consult the supplier A The site contains mineral oils such as sulfide gas B Factories where the supply voltage fluctuates seriously C Inside a
14. INSTALLATION MANUAL 2020001A1702 Split Duct Ceiling Air Conditioner Cardiff Air Conditioning Thank you very much for purchasing our air conditioner Before using your air conditioner please read this manual carefully and keep it for future reference 14 TRIAL RUN Please conduct in accordance with Trial Run Tenor Nameplate on the electric control box A CAUTION 1 Perform the trial run only after the outdoor unit has been powered on for over 12 hours Check that all valves are opened before trial run Check the electric safety before trial run Do not perform compulsory operation in any way It is very dangerous if the protection device is not active BR WD 14 1 Perform trial run only after all installations are finished 14 2 Confirm the following issues before trial operation and J the box for the confirmed items Check whether the indoor unit and the outdoor are installed properly Check whether the piping and wiring are correct Check whether the refrigerant pipeline system is inspected for leakage Check whether the drain is smooth Check whether the heat insulation is perfect Check whether the ground cables are connected correctly Check whether the pipe length and the refrigerant amount are recorded Check whether the supply voltage is equal to the rated voltage of the air conditioner Check whether any obstacles exist at the air inlet outlet of the indoor or outdoor unit
15. dded bolt Pipe pendant embedded bolt Figure 6 Steel beam and girder structure Set and use supportive angle steel Suspended bolt Pendant bolt Supportive angle steel Figure 7 4 3 Suspending the indoor unit Use a hoisting device to hoist the indoor unit align it with the installation screw adjust the horizontality and then tighten it Unit body Pendant bolt Not less than 30 Figure 8 4 4 Design and connection of duct 1 The duct design must comply with the national heating air conditioner pipeline design specifications 2 The accessories and materials must be produced by professional manufacturers 3 In order to prevent air flow shorting do not keep the air inlet pipe near the air outlet pipe 4 Install a filter at an easy to maintain place such as intake pipe Otherwise the duct will gather on the air heat exchanger and lead to fault and water leak of the air conditioner 5 In order to suppress noise effectively install noise suppression and sound insulation devices especially in the noise sensitive spaces such as meeting rooms 6 For connection of the flange plane use non flammable canvas adapter to prevent transmission of vibration For its size see the indoor unit outline diagram Use M6X20 screws configured on site for connection 7 All pipelines must be connected closely and soundly without leak of air The pipelines must be adiabatic and free from condensation Key
16. erant oil at the outer surface of the pipeline flare and the taper surface of the connection nut Screw up the nut for 3 4 circles beforehand see Figure 20 When connecting or disconnecting the pipeline be sure to use two spanners concurrently Do not rest the weight of the connective pipe on the adapter of the indoor unit Too heavy load on the adapter of the indoor unit may deform the pipe and thus affect the cooling heating effect 2 The valve of the outdoor unit should be closed completely as in the factory status Every time when connecting the pipe screw off the nut at the valve and connect the flared pipe within 5 minutes If the nut is put away for a long time after being screwed off the valve dust and other foreign substance may intrude into the pipeline system and lead to fault Before connecting the pipe use the refrigerant R 407C to expel air out of the pipe 3 After the refrigerant pipe is connected to the indoor and outdoor units expel air as instructed in the Expel air section After expelling the air screw up the nut at the maintenance orifice A Precautions for the flexible part of the pipeline e The bend angle shall not exceed 90 e The bend shall be preferably in the middle of the pipe length and higher bend radiuses are preferred e Do not bend the flexible pipe for over 3 times B Bend the thin wall connective pipe e When bending the pipe cut out a notch of the desired size at the bend of
17. frigerant for 6 seconds Detect leak for all adapters at A B C and D After making sure that no leak exists screw off the filler hose After all the filled refrigerant is expelled screw up the maintenance orifice nut of valve A quickly 6 Open the square head spools of valves A and B completely 7 Tighten the square head cover of valves A and B 9 4 Use a vacuum pump to expel the air Figure 28 For method of using the manifold valve see the operation manual of manifold valve 1 Loosen and remove the maintenance orifice nut of valve A and connect the filler hose of the manifold valve to the maintenance orifice of valve A tighte n both valve A and valve B 2 Connect the filler hose adapter to the vacuum pump 3 Open the low pressure Lo handle of the manifold valve completely 4 Start the vacuum pump to extract air At the beginning of extracting air slightly loosen the maintenance orifice nut of valve B check whether any air enters it the vacuum pump noise changes and the multimeter indicates from negative to 0 Then tighten this maintenance orifice nut 5 Upon completion of vacuuming tighten the low pressure Lo handle of the manifold valve completely and stop the vacuum pump Keep extracting air for over 15 minutes Check whether the multimeter points at 1 0X10 5Pa 76cmHg 6 Loosen and remove the square head cover of valves A and B After opening valves A and B completely tighten the square head cover of valves Aa
18. gure 35 Measures against crossing of the refrigerant density threshold 1 In order to decrease the refrigerant density and keep it within the density threshold please install a mechanic ventilation device keep ventilating 2 In case frequent ventilation is impossible please install the leakage detection alarm device linked with the mechanical ventilation device a k a Ventilation orifice part The leakage detection alarm device should be installed at the place vulnerable to retention of the refrigerant Figure 36 Installation manual 12 CONTENTS PAGE 2 INSTALLING SITE INDOOR UNIT 1 PRECAUTIONS 2 INSTALLING SITE 3 ACCESSORY INDOOR UNIT 4 INSTALLING THE INDOOR UNIT o INSTALLING THE OUTDOOR UNIT 6 INSTALL THE CONNECTIVE PIPE e Install the unit where enough space of installation and maintenance is available e Install the unit where the ceiling is horizontal and enough for bearing the weight of the indoor unit e Install the unit where the air inlet and outlet are not baffled and are 7 AIRTIGHT TEST the least affected by external air 8 PIPING THERMAL INSULATION e Install the unit where the supply air flow can be sent to all parts in 9 EXPELLING AIR the room 10 INSTALL THE DRAIN PIPE e Install the unit where it is easy to lead out the connective pipe and 12 METHODS OF CONFIGURING AND SELECTING INSTALLATION e Install the unit where no heat is emitted from a heat source directly 13
19. hether any vibration or abnormal sound occurs during the operation 2 Check whether the air noise and condensate generated by the unit affect the neighbors 3 Check whether any refrigerant is leaked Q NOTE When you start the air conditioner immediately after connecting the power supply or restarting the air conditioner after shutting it down the air conditioner is protected and the compressor will be started 3 minutes later 14 5 Refrigerant leak precautions This air conditioner uses refrigerant R22 The R22 is safe refrigerant which is harmless and non flammable The room for placing the air conditioner should have a proper space Even if refrigerant leakage occurs the density threshold will not be crossed Additional measures may also be taken Density threshold Density of the Freon gas not harmful human body Density threshold of R22 0 3 kg m Check the density threshold in the following sequence and take the corresponding measures 1 Calculate the quantity of refrigerant to be replenished A kg Total refrigerant quantity refrigerant replenishment quantity upon shipment 12 kg additional refrigerant replenishment corresponding to the pipe length 2 Calculate out the indoor volume B m according to the minimum volume 3 Calculate out the refrigerant density Alkgl lt Density threshold 0 3 kg m B m Outdoor unit Room in which refrigerant is leaked All refrigerant is leaked Fi
20. ir volume is over 450CMH 3 or 4SOLT When about 6 diffusers are required the outline size should increase 3 Ifthe proper airspeed is 2 5 5m s and actual airspeed reaches over 5m s it is necessary to choose othe diffusers with higher noise values 1 Low noise comparedwith other air outlets Applicableto tall buildings that require along distance of air conditioning 2 Select the ventilationpipe connection calibre according tothe distance and the airspeed 3 Applicable tostorey height of ove 5m for design oftall storeys such as temple consult Midea 1 Flanges and pipelinesconnected to the ventilation pipes 2 When the noisepipe is connected with the hose theventilation pipe tape must be applied otherwise with only adhesive tape the adhesion will be weakeneddue to change of temperature 1 It is used to prevent glass wool leak and seal the gas at the time of connecting the flanges and pipelines of the ventilation pipes 2 Entwine for over 3 circles 3 Use ventilation pipe specific tapes instead of ordinary adhesive tapes In order to ensure the installation quality and durability it is necessary to use auxiliary materials of standard specifications provided by Midea Electronics and the auxiliary products of the specified manufacturers Installation manual 10 Old concrete roughcast Use embedded bolts embedded pulling plugs and embedded stick harness Steel bar Embe
21. mperature not less than 23 C e g Inside the ceiliing which constructed by moorstone or the outdoor temperature is the same as the one inside of the ceiling 2 Please use heat resistant material for themal insulate material on gas side piping 3 Coat thermal insulation materials on liquid side and gas side separately more over the gas side piping inside of the indoor unit must be kept thermal insulation soundly do not drip water outside of the unit casing 4 Please seal piping by ethylene resin band for prevent water leakage after add axiliary thermal insualtion material into piping 8 1 Use purchased copper pipe When the cooper pipe is purchased from the market be sure to use the heat insulation materials of the same type with a thickness of over 9mm Apply refrigerant oil Figure 20 Use a thumb to bend the pipe Min radius 100mm Figure 21 _ D Method of unleashing the spooled pipe Straighten the pipe end Figure 23 8 2 Deploy the pipelines 8 2 1 1 Drill a porthole on the wall and put the hole sheath and hole cover through the wall 8 2 1 2 Place the connective pipe together with the indoor amp outdoor connection wires Use wrapping tape to tie them tight Do not let air penetrate into it lest condensation and drips of moist 8 2 1 3 Pull the connective wrapped connective pipe from outdoor through the sheath which gets through the wall and lead it into the room Lay out the
22. nd B 7 Remove the filler hose off the maintenance orifice of valve A and then tighten the nut Manifold valve Multimeter manometer TecmHg 1 Lo handle Lo pressure valve Figure 28 Installation manual
23. onal part Outdoor unit Electric control box of outdoor unit Figure 30 z Indoor unit powersupply 5 220 240V 50Hz O g l A a RCCB Manual switch Figure 19 Outdoor unit powersupply 380 415V 3N 50Hz ye Ug ee rr ee E E EE E a ee oy P ona Installation manual Installation manual 8 5 6 INSTALL THE CONNECTIVE PIPE Check the height difference between the indoor unit and the outdoor unit and check the length and number of bends of the refrigerant pipeline which must meet the following requirements Max height difference If the height difference is greater than 5m it is best to put the outdoor unit above the indoor unit Max pipeline length Max number of bends ein the process of installing the connective pipe do not let the air dust or foreign substance intrude into the pipeline system elnstall the connective pipe only after fixing the indoor and outdoor units eKeep dry when installing the connective pipe Do not let moist intrude into the pipeline system Procedure of connecting pipes 1 Measure the required length of the connective pipe and make the connective pipes in the following procedure 1 Connect the indoor unit first and then connect the outdoor unit The pipe bend should be handled carefully without damaging the pipe Q NOTE Before screwing up the flared nut apply refrig
24. ording to the actual length of the pipe Installation manual 3 e Record the refrigerant replenishment quantity actual length of pipe and the height difference of the indoor amp outdoor units onto the operation confirmation table on the electric control box of the outdoor unit in advance for future reference 5 1 6 Electric wiring Select the power supply capacity and wire size according to the design manual The power wire size of the air conditioner should be greater than that of ordinary motors In order to prevent misoperation of the air conditioner do not interleave or entwine the power cable 380V 3N 50Hz with the connection wires low voltage wires of the indoor outdoor unit e Power on the indoor unit after performing the airtight test and making a vacuum 5 1 7 Trial run Perform the trial run only after the outdoor unit has been powered on for over 12 hours 5 2 Installation space 1 When installing the unit leave a space for maintenance shown in the following figure Install the power supply at the side of the outdoor unit For installation procedure see the relevant installation manual 2 Ensure enough space for installation and maintenance see the following figure 4s Air outlet Air inlet HI 2 Air inlet M Installation amp maintenance surface Figure 12
25. points of duct connection Canvas adapter Canvas adapter y Noise suppression room Air inlet Air filter Figure 9 NOTE Prepare the assemblies other than air conditioner gas on the site Air outlet duct connection screw hole location diagram Figure 10 1828 Gy al L Hl 144 4 213 315 315 214 315 315 lt gt Return air duct rivet screw hole location diagram Figure 11 9 INSTALLING THE OUTDOOR UNIT 5 1 Construction checkpoints 5 1 1 Installation eCheck the model and name to avoid mistaken installation 5 1 2 Refrigerant pipe eThe refrigerant pipes must have the specified diameter e Nitrogen of a certain pressure must be filled into the refrigerant pipe before welding eThe refrigerant pipe must undergo heat insulation treatment eAfter the refrigerant pipe is installed completely the indoor unit cannot be powered on before performing the airtight test and creating a vacuum 5 1 3 Airtight test e The refrigerant pipe must undergo the airtight test With 2 94MPa 30kgf cm G nitrogen 5 1 4 Creating a vacuum eBe sure to use the vacuum pump to create a vacuum of the connective pipe at both air side and liquid side concurrently 5 1 5 Refrigerant replenishment elf the pipe is longer than the reference pipe the refrigerant replenishment quantity for each outdoor unit should be calculated through the formula obtained acc
26. re is easy to install and uninstall 1 For purpose ofair inlet 2 Must adopt fire resistant materials Those materials other than specified by Midea shall not be applied 3 The heatinsulation material must be glass wool 1 For purpose ofair outlet 2 Must adopt fire resistant materials Those materials other than specified by Midea shall not be applied 3 The heatinsulation material must be glass wool 1 Install the unit at the air inlet so that the air flows smoothly and the noise is lower 2 The noise value varies with the length 3 The hose joint should be bent lest detachment of the pipe 1 Install the unit at the air outlet so that the air flows smoothly and the noise is lower 2 The noise value varies with the length 3 The hose joint should be bent les detachment of the pipe 1 Install the unitat a diffuserso that the air flowssmoothly and the noise is lower 2 Select 1BY2 or1BY3 according to the quantity ofthe diffusers 3 The diffuserpipes should preferably have the samelength after branching and theminimum length of the ventilationpipes is 5 1 Fixed model thatdiffuses air at a 360 angle 2 The outlinesize should increase when the air volumeis over 350CMH for above 303 i e when about 9 diffusers are required the outline sizeshould increase 3 The diffuserpipes should preferably have the samelength after branching and theminimum length of the ventilationpipes is 5m
27. refrigerant volume caculated method Unit kg E E cininerdionieten Additional refrigerant volume is q Peng equivalent to the length of piping Q NOTE 1 As per to the pipe circuit length for additional refrigerant If the pipe length is exceed to the sstandard length 2 Please take note of the refrigerant charged volume perpare for your future maintain and repair L Liquid side length m 10 INSTALL THE DRAIN PIPE 10 1 Install the drain pipe of the indoor unit In order to prevent drain overflow install a drainage controller at place 1 of the drain pipe The drainage controller is designed to smoothen the drainage when the static pressure outside the unit is high especially at the air inlet in addition to remove stink through the drain pipe The drain of water is natural In the construction the external pipe of the outdoor unit slants downward at a gradient of 1 50 1 100 The number of bends and folds of the drain pipe should not exceed 2 Try to avoid bends in order to prevent trash accumulation In the construction do not drop trash into the drip tray or drain pipe of the indoor unit Upon completion of installing the drain pipe remove the inspection panel Put water into the drip tray to check whether the water can be drained levelly and steadily Inspection panel Drain pipe inspection and sweep orifice Q NOTE Drain pipe trash gains easily at the drainage controller Be sure to install
28. xpelling air angi of connective pipe Procedure of expelling air single pass Less than 5m Use refrigerant in the outdoor unit Use vacuum pump or refrigerant tank 9 2 Use the refrigerant in the outdoor unit to expel air see Figure 26 and Figure 27 1 Screw up the pipe nuts at A B C and D completely 2 Loosen and remove the square head cover of valves A and B rotate the square head spool of valve B counterclockwise for 45 degrees and stay for about 10 seconds and then close the spool of valve B tightly 3 Detect leak for all adapters at A B C and D After making sure that no leak exists open the maintenance orifice nut of valve A After all air is expelled tighten the maintenance orifice nut of valve A 4 Open the spools of valves A and B completely 5 Tighten the square head cover of valves A and B completely Outdoor unit eu side qlee unit a re A Pipe adapter Figure 26 Figure 27 9 3 Use refrigerant tank to expel air see Figure 26 and Figure 27 1 Screw up the pipe nuts at A B C and D completely 2 Loosen and remove the square head cover and the maintenance orifice nut of valves A and B 3 Connect the filler hose of the refrigerant tank with the maintenance orifice of valve A 4 Lon the valve of the refrigerant tank continue filling refrigerant for 6 seconds to expel the air and tighten the nut of valve B quickly 5 Loosen the valve of the refrigerant tank again and fill the re

INSTALLATION MANUAL - CARDIFF Air Conditioning

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