INSTLLTION MNUL MNUL DE INSTLCIÓN MNUEL D INSTLLTION MNULE D INSTLLZIONE MNUL DE INSTLÇÃO INSTLLTIONS-HNDUCH E XEIPI IO E KT T H Indoor unit MH18P1(P2)-09 MH19P1(P2)-07 MH19P1(P2)-12 MH24P1(P2)-12 MH26P1(P2)-07 MH26P1(P2)-12 Outdoor unit MH18P1(P2)X MH19P1(P2)X MH24P1(P2)X MH26P1(P2)X MULTI-SPLIT TYPE ROOM IR CONDITIONER ( Cool and Heat ) CONDICIONDOR DE IRE DOMÉSTICO SISTEM MULTI SPLIT ( Refrigeración y Calefacción ) CLIMTISEUR DE TYPE MULTIPLE ( Refroidissement et Chauffage ) CONDIZIONTORE D RI PER PIÙ MIENTI D UNITÀ SEPRTE ( Raffreddamento e Riscaldamento ) R CONDICIONDO MULTI SPLIT ( Refrigeração e quecimento ) RUMKLIMGERÄT IN MEHRFCH GETEILTER USFÜHRUNG ( Kühlen und Wärmen ) IIPOYMENO K IMTI TIKO ømtioy ( æ ÍË Î È ÚÌ ÓÛË ) E HNIK DEUTSCH PORTUGUÊS ITLINO FRNÇIS ESPÑOL ENGLISH E S F I P D G D98-15935(1)
Safety Precautions The following safety precautions must be taken when using your air conditioner. WRNING Risk of electric shock. Can cause injury or death. Disconnect all remote electric power supplies before servicing, installing or cleaning. This must be done by the manufacturer or its service agent or a similar qualified person in order to avoid a hazard. INSTLLING THE UNIT The unit should not be installed by the user. sk the dealer or authorized company to install the units except room air conditioners for the U.S. and Canada area. If the unit is installed improperly, water leakage, electric shock or fire may result. The air conditioner must be installed in accordance with national wiring regulations and safety regulations wherever applicable. Mount with the lowest moving parts at least 2.5 m above the floor or grade level. (If applicable) The manufacturer does not assume responsibility for accidents or injury caused by an incorrectly installed air conditioner. If you are unsure about installation, contact an installation specialist. When installing the built-in type air conditioner, keep all electrical cables such as the power cable and the connection cord in pipe, ducts, cable channels e.t.c to protect them against liquids, outside impacts and so on. POWER SUPPLY LINE, FUSE OR CIRCUIT REKER If the power cord of this air conditioner is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard. The unit must be plugged into an independent circuit if applicable or connect the power cable to the auxiliary circuit breaker. n all pole disconnection from the power supply must be incorporated in the fixed wiring with a contact opening of >3mm. Do not use an extension cord with this product. If the unit is equipped with a power supply cord and a plug, the plug must be accessible after installation. This appliance must be installed accordance with the national wiring regulations. E-2
ENGLISH Contents PREPRING THE INSTLLTION Deciding on Where to Install the ir Conditioner... 4 ir Conditioner and ccessories... 8 INSTLLING THE INDOOR UNIT Fixing the Installation Plate... 9 Purging the Unit... 10 Connecting the ssembly Cable... 10 Installing and Connecting the Indoor Unit Drain Hose... 11 Installing and Connecting the Indoor Unit ssembly Piping... 12 Cutting/Extending the Piping... 13 INSTLLING THE OUTDOOR UNIT Connecting the Cables to the Outdoor Unit... 14 Checking Correct Earthing... 16 Installing and Connecting the Outdoor Unit Drain Hose... 17 Fixing the Unit in Position... 17 COMPLETING THE INSTLLTION Connecting Up and Purging the Circuit... 18 Refrigerant Refill... 18 Performing Leak Tests... 19 Placing the Indoor Unit in Position... 19 Checking and Testing Operations... 20 Explaining Operations to the Owner... 25 Which model air conditioner have you purchased? This Installation Manual is made for various models. Make sure what model you purchased then install your air conditioner as your type. Type MH18P1(P2)-09 MH19P1(P2)-07 MH19P1(P2)-12 Type MH24P1(P2)-12 C Type MH26P1(P2)-07 MH26P1(P2)-12 E-3
PREPRING THE INSTLLTION Deciding on Where to Install the ir Conditioner When deciding on the location of the air conditioner with the owner, the following restrictions must be taken into account. General Do NOT install the air conditioner in a location where it will come into contact with the following elements: Combustible gases Saline air Machine oil Sulphide gas Special environmental conditions If you must install the unit in such conditions, first consult your dealer. Indoor Unit There must be no obstacles near the air inlet and outlet. Install the indoor unit on a surface that can support its weight. Choose a position that enables the piping and cables to be easily connected to the outdoor unit and the recommended length of 7.5 metres to be respected. Leave enough clearance beneath the indoor unit to enable the filters to be removed without hindrance. Maintain sufficient clearance around the indoor unit, as indicated in the diagram on the page opposite. Make sure that the water dripping from the drain hose runs away correctly and safely. Outdoor Unit The outdoor unit must NEVER be placed on its side or upside down, as the compressor lubrication oil will run into the cooling circuit and seriously damage the unit. Choose a location that is dry and sunny, but not exposed to direct sunlight or strong winds. Do not block any passageways or thoroughfares. Choose a location where the noise of the air conditioner when running and the discharged air do not disturb any neighbours. Choose a position that enables the piping and cables to be easily connected to the indoor unit and the recommended length of 7.5 metres to be respected. Install the outdoor unit on a flat, stable surface that can support its weight and does not generate any unnecessary noise and vibration. Position the outdoor unit so that the air flow is directed towards the outside, as indicated by the arrows on the top of the unit. Maintain sufficient clearance around the outdoor unit, as indicated in the diagram on the page opposite. If the outdoor unit is installed at a height, ensure that its base is firmly fixed in position; the maximum height is 7 metres. Make sure that the water dripping from the drain hose runs away correctly and safely. CUTION You have just purchased a multi-split type room air conditioner and it has been installed by your installation specialist. This device must be installed according to the national electrical rules. Max input power & current is measured according to IEC standard and input power & current is measured according to ISO standard. E-4
PREPRING THE INSTLLTION ENGLISH 18,000tu/h 19,000tu/h Indoor unit Outdoor unit Power supply Ø, V, Hz Indoor unit Outdoor unit Power supply Ø, V, Hz MH18P1(P2)-09 MH18P1(P2)X 1,220-240~,50 MH19P1(P2)-07 MH19P1(P2)-12 MH19P1(P2)X 1,220-240~,50 Respect the clearances and maximum lengths indicated in the diagram below when installing the unit. -unit 9,000(2.63kW) or 12,000tu/h(3.51kW) 20 mm or more -unit 7,000(2.05kW) or 9,000 tu/h(2.63kw) 100 mm or more 160 mm or more 300 mm minimum 600 mm minimum 300 mm minimum (15 metres maximum) (7 metres maximum) 600 mm minimum Circuit breaker (20) Main power switch The designs of the unit and the connection valve are subject to change according to the model. Piping length and the height. 18,000tu/h Unit Pipe size Liquid GS -unit -unit 1/4" 1/4" 3/8" 3/8" 19,000tu/h MX. piping length 15 m 15 m MX. height 7 m 7 m INDOOR UNIT Unit -unit -unit Pipe size Liquid 1/4" 1/4" GS 3/8" 3/8" MX. piping length 15 m 15 m MX. height 7 m 7 m OUTDOOR UNIT E-5
PREPRING THE INSTLLTION Deciding on Where to Install the ir Conditioner (cont.) 24,000tu/h Indoor unit Outdoor unit Power supply Ø, V, Hz MH24P1(P2)-12 MH24P1(P2)X 1,220-240~,50 Respect the clearances and maximum lengths indicated in the diagram below when installing the unit. -unit 12,000 tu/h(3.51kw) 20 mm or more -unit 12,000 tu/h(3.51kw) 100 mm or more 160 mm or more 300 mm minimum 600 mm minimum 300 mm minimum (15 metres maximum) (7 metres maximum) 600 mm minimum Circuit breaker (20) Main power switch The designs of the unit and the connection valve are subject to change according to the model. Piping length and the height. INDOOR UNIT Unit -unit -unit Pipe size Liquid 1/4" 1/4" GS 3/8" 3/8" MX. piping length 15 m 15 m MX. height 7 m 7 m OUTDOOR UNIT E-6
PREPRING THE INSTLLTION ENGLISH 26,000tu/h Indoor unit MH26P1(P2)-07 MH26P1(P2)-12 Outdoor unit Power supply Ø, V, Hz MH26P1(P2)X 1,220-240~,50 C-unit 7,000 tu/h(2.05kw) Respect the clearances and maximum lengths indicated in the diagram below when installing the unit. -unit 7,000 tu/h(2.05kw) 20 mm or more -unit 12,000 tu/h(3.51kw) 100 mm or more 160 mm or more (7metres maximum) 600 mm minimum (15 metres maximum) 300 mm minimum 300 mm minimum 600 mm minimum C Circuit breaker (20) Main power switch 220V-240V~, 50Hz The designs of the unit and the connection valve are subject to change according to the model. Piping length and the height. Unit -unit -unit C-unit Pipe size Liquid 1/4" 1/4" 1/4" GS 3/8" 3/8" 3/8" MX. piping length ( ) 15 m 15 m 15 m MX. height ( ) 7 m 7 m 7 m INDOOR UNIT OUTDOOR UNIT E-7
Climatiseur de type s par Geteilte raumklimaanlage Climatiseur de type s par Geteilte raumklimaanlage PREPRING THE INSTLLTION ir Conditioner and ccessories The following accessories are supplied with the air conditioner. ccessories in the Indoor Unit Case Installation Plate Remote Control atteries for Remote Control ccessories in the Outdoor Unit Case Drain Plug Rubber Leg Owner s Instruction ooklet Installation Manual OWNER S INSTRUCTIONS MNUL DE INSTRUCCIONES ISTRUZIONI PER L USO MNUL DE INSTRU ES MNUEL D UTILISTION GERUCHSNWEISUNG INSTLLTION MNUL MNUL DE INSTLCION MNULE D INSTLLZIONE MNUL DE INSTL O MNUEL D INSTLLTION INSTLLTIONS-HNDUCH Splut-type Room ir Conditioner ire acondicionado dom stico sistema Split Condizionatore d aria per ambienti ad unit Separate parelho de ar condicionado tipo Split Splut-type Room ir Conditioner ire acondicionado dom stico sistema Split Condizionatore d aria per ambienti ad unit Separate parelho de ar condicionado tipo Split 3-wire Power Cable (option) 4-wire ssembly Cable (option) Flare Nuts, 6.35mm outer pipe diameter Flare Nuts, 9.52mm outer pipe diameter The 3-wire power cable and the 4-wire assembly cable are optional. If these cables are not supplied, use the standard cable approved by IEC standard. The specification for cables WG Cross sectional area (mm 2 ) Three-wire power cable 14 or more 2.0 or more Four-wire assemble cable 17 or more 1.0 or more The flare nuts are only included when the air conditioner is supplied without the assembly piping illustrated below. The drain plug is supplied for heat pump model to drain the water condensed in the outdoor heat exchanger. (for installation, see page 17) The following connection accessories may be supplied, depending on the option. If they are not supplied, it is recommended that you collect them together before starting to install the air conditioner. ssembly Piping, Ø6.35mm by 7.5m ssembly Piping, Ø9.52mm by 7.5m PE T3 Foam Tube Insulation Vinyl Tape, Width 50mm Putty 100g Pipe Clamps Pipe Clamps M3.8 x 20 Screws for Wood M4 x 16 Tapped Screws Drain Hose, length 2m If these accessories are supplied, they are located in the accessory box. E-8
INSTLLING THE INDOOR UNIT Fixing the Installation Plate efore fixing the installation plate to a wall or window frame, you must determine the position of the 65 mm hole through which the cable, piping and hose pass to connect the indoor unit up to the outdoor unit. When facing the air conditioner in position on the wall, the piping and cable can be connected from the: Right Left Rear (right or left) ENGLISH 1 Determine the position of the pipe and drain hose hole using the right figure and drill the hole with an inner diameter of 65 mm so that it slants slightly downwards. Installation plate 2 If you are fixing the indoor unit to a... Then follow Steps... Wall 3. Window frame 4 to 6. 3 Fix the installation plate to the wall in a manner appropriate to the weight of the indoor unit. If you are mounting the plate on a concrete wall with anchor bolts, the anchor bolts must not project by more than 20 mm. 4 Determine the positions of the wooden uprights to be attached to the window frame. 5 ttach the wooden uprights to the window frame in a manner appropriate to the weight of the indoor unit. 6 Using tapped screws, attach the installation plate to the wooden uprights, as illustrated in the last figure opposite. 07/09 (Unit : mm) 12 (Unit : mm) Pipe hole (Ø65mm) 100 158 90 165 30mm 19 45 E-9
INSTLLING THE INDOOR UNIT Purging the Unit On delivery, the indoor unit is loaded with an inert gas. ll this gas must therefore be purged before connecting the assembly piping. To purge the inert gas, proceed as follows. Unscrew the caps at the end of each pipe. Result: ll inert gas escapes from the indoor unit. To prevent dirt or foreign objects from getting into the pipes during installation, do NOT remove the caps completely until you are ready to connect the piping. Connecting the ssembly Cable The outdoor unit is powered from the indoor unit via the assembly cable. If the outdoor unit is more than 7.5 metres away from the indoor unit, the cable must first be extended to a maximum of 15 metres. 1 Extend the assembly cable if necessary. 2 Open the front grille by pulling on the tabs on the lower right and left sides of the indoor unit. 3 Remove the screw securing the connector cover. Indoor unit 1 2 3 E Earth terminal 4 When installing, remove the cables connected with. 5 Pass the assembly cable through the rear of the indoor unit and connect the assembly cable such as figure. Each wire is labelled with the corresponding terminal number. 6 Pass the other end of the cable through the 65 mm hole in the wall. Outdoor unit 1 1 (L) 2 3 E 2 (N) 3 COM Earth terminal E 7 Replace the connector cover, carefully tightening the screw. 8 Close the front grille. 9 For further details on how to plug the other end of the assembly cable into the outdoor unit, refer to pages 14 and 15. E-10
INSTLLING THE INDOOR UNIT Installing and Connecting the Indoor Unit Drain Hose ENGLISH Care must be taken when installing the drain hose for the indoor unit to ensure that any condensed water is correctly drained outside. When passing the drain hose through the 65 mm hole drilled in the wall, check that none of the following situations occur. 5 cm less Ditch The hose must NOT slope upwards. The end of the drain hose must NOT be placed in water. Do NOT bend the hose in different directions. Keep a clearance of at least 5 cm between the end of the hose and the ground. Do NOT place the end of the drain hose in a hollow. To install the drain hose, proceed as follows. 1 If necessary, connect the 2-metre extension to the drain hose. 2 If you are using the extension, insulate the inside part of the extension drain hose with a shield. 3 Pass the drain hose under the refrigerant piping, taking care to keep the drain hose tight. 4 Pass the drain hose through the hole in the wall, making sure that it is sloping downwards, as shown in the illustrations above. Shield Drain hose Extension drain hose The hose will be fixed permanently into position once the whole installation has been tested for gas leaks; refer to page 19 for further details. E-11
INSTLLING THE INDOOR UNIT Installing and Connecting the Indoor Unit ssembly Piping There are two refrigerant pipes of different diameters: smaller one for the liquid refrigerant larger one for the gas refrigerant short length of piping is already fitted to the air conditioner. You must extend this piping using assembly piping (optionally supplied). The connection procedure for the refrigerant piping varies according to the exit position of the piping from the indoor unit, as seen when facing the air conditioner in position on the wall: Right () Left () Rear 1 With a knife, cut out the appropriate knock-out piece on the rear of the indoor unit (unless you are connecting directly from the rear). 2 Smooth the cut edges. 3 Remove the protection caps on the pipes and connect the assembly piping to each pipe, tightening the nuts, first manually and then with a torque wrench, applying the following torque. Outer Diameter Torque (kgf cm) 6.35 mm 140~170 9.52 mm 250~280 If the piping must be shortened or extended, refer to page 13. 4 Cut off any excess foam insulation. 5 If necessary, bend the pipe round, along the bottom of the indoor unit and out through the appropriate hole, taking care to ensure that: The piping does not jut out from the rear of the indoor unit The bending radius is 100 mm or more 6 Pass the piping through the hole in the wall. 7 For further details on how to connect up to the outdoor unit and purge the circuit, refer to page 18. The piping will be insulated and fixed permanently into position once the whole installation has been tested for gas leaks; refer to page 19 for further details. E-12
INSTLLING THE INDOOR UNIT Cutting/Extending the Piping ENGLISH 7.5 metres of piping is supplied with the air conditioner(optional). This length can if necessary be: Extended to a maximum of 15 metres Shortened as required If more than 7.5 metres of piping is required: The assembly cable must also be extended Refrigerant must be added to the circuit by an approved installer; otherwise, the indoor unit may freeze 1 Make sure that you have the required tools available (pipe cutter, reamer, flaring tool and pipe holder). 2 If you wish to shorten the piping, cut it using a pipe cutter, taking care to ensure that the cut edge remains at a 90 angle with the side of the pipe, and referring to the illustrations below for examples of edges cut correctly and incorrectly. Oblique Rough urr 90 O O x x x 3 To prevent any gas from leaking out, remove all burrs at the cut end of the pipe, using a reamer. 4 Slide a flare nut on to the pipe and modify the flare. Outer Diameter (D) Depth () 6.35 mm 1.3 mm 9.52 mm 1.8 mm 5 Check that the flaring is correct, referring to the illustrations below for examples of incorrect flaring. x x x x Inclined Damaged Surface Cracked Uneven Thickness 6 lign the pipes to be connected and tighten the flare nuts first manually and then with a torque wrench, applying the following torque. Outer Diameter Torque (kgf cm) 6.35 mm 140~170 9.52 mm 250~280 7 For further details on how to connect up to the outdoor unit and purge the circuit, refer to page 18. E-13
INSTLLING THE OUTDOOR UNIT Connecting the Cables to the Outdoor Unit Type Two electric cables must be connected to the outdoor unit: The assembly cable connecting the indoor unit to the outdoor unit. The power cable connecting the auxiliary circuit breaker to the outdoor unit. 1 Remove the terminal board cover on the side of the outdoor unit. 2 Connect the assembly cable with the power cable such as figure. Type Each wire is labelled with the corresponding terminal number. Ensure the wire number of the indoor unit and the terminal number of the outdoor unit. 3 Connect the earth wires to the earth terminals. Refer to the page opposite for further details on how to check that earthing is correct. Type C 4 Replace the terminal board cover, carefully tightening the screw. 5 Connect the power cable to the auxiliary circuit breaker. Specially for Russian and European market, before installation, the supply authority should be consulted to determine the supply system impedance to ensure compliance. E-14
INSTLLING THE OUTDOOR UNIT ENGLISH 18/19/24 Outdoor unit 1 (L) 2 (N) 3 COM 1 (L) 2 (N) 3 COM 1 (L) 2 (N ) Terminal block E Earth terminal Circuit reaker (Main Power supply cable) 1 2 3 E Earth terminal 1 2 3 E Earth terminal ssembly cable 1 2 3 E Earth terminal 1 2 3 E Earth terminal Indoor unit -unit -unit 26 Outdoor unit 3 COM 1 (L) 2 (N) 3 COM 3 COM 2 (N) 1 (L) 2 (N) Terminal block E Earth terminal Circuit reaker (Main Power supply cable) ssembly cable 1 2 3 E 1 2 Earth terminal 3 E Earth terminal 1 2 3 E Earth terminal Indoor unit 1 2 3 E 1 2 3 E 1 2 3 E Earth Earth terminal terminal Earth terminal -unit -unit C-unit E-15
INSTLLING THE OUTDOOR UNIT Checking Correct Earthing If the power distribution circuit does not have an earth or the earth does not comply with specifications, an earthing electrode must be installed. The corresponding accessories are not supplied with the air conditioner. Carbon plastic Steel core PVC-insulated green/ yellow wire, 2mm 2 x 3.5 m To earthing screw 1 Select an earthing electrode that complies with the specifications given in the illustration opposite. 2 Determine a suitable location for the earthing electrode: In damp hard soil rather than loose sandy or gravel soil that has a higher earthing resistance way from underground structures or facilities, such as gas pipes, water pipes, telephone lines and underground cables t least two metres away from a lightening conductor earthing electrode and its cable The earthing wire for the telephone line cannot be used to earth the air conditioner. 30 cm 50 cm 3 Dig a hole of the size indicated in the illustration opposite, drive the earthing electrode into position and cover the top of the electrode with the excavated soil. 4 Install a green/yellow insulated earthing wire (Ø1.6 mm, section 2 mm 2 or greater): If the earthing wire is too short, connect an extension lead, soldering the connection and wrapping it with insulating tape (do not bury the soldered connection) Secure the earthing wire in position with staples If the earthing electrode is installed in an area of heavy traffic, its wire must be connected securely. 5 Carefully check the installation, by measuring the earthing resistance with an earthing resistance tester. If the resistance is above the required level, drive the earthing electrode deeper into the ground or increase the number of earthing electrodes. 6 Connect the earthing wire to the earthing screw on the air conditioner. E-16
INSTLLING THE OUTDOOR UNIT Installing and Connecting the Outdoor Unit Drain Hose ENGLISH When using the air conditioner in the heating mode, ice may accumulate. During de-icing, the condensed water must be drained off safely. Consequently, you must install a drain hose on the outdoor unit, following the instructions below. 1 Insert the drain plug into the drain hole on the underside of the outdoor unit. 2 Connect the drain hose to the drain plug. Drain hole 3 Ensure that the drained water runs off correctly and safely. The designs and shape are subject to change according to the model. Fixing the Unit in Position The outdoor unit must be installed on a rigid and stable base to avoid any increase in the noise level and vibration, particularly if the outdoor unit is to be installed close to a neighbour. If it is to be installed in a location exposed to strong winds or at a height, the unit must be fixed to an appropriate support (wall or ground). 1 Position the outdoor unit so that the air flow is directed towards the outside, as indicated by the arrows on the top of the unit. 2 ttach the outdoor unit to the appropriate support using anchor bolts. 3 If the outdoor unit is exposed to strong winds, install shield plates around the outdoor unit, so that the fan can operate correctly. 340 mm 660 mm Rubber leg Certainly fix up its rubber leg in order to prevent its vibration and noise. E-17
COMPLETING THE INSTLLTION Connecting Up and Purging the Circuit CUTION The air in the indoor unit and in the pipe must be purged. If air remains in the refrigeration pipes, it will affect the compressor, reduce to cooling/heating capacity and could lead to a malfuction. Refrigerant for air purging is not charged in the outdoor unit. Use Vacuum Pump as shown at the right figure. Each unit must be purged in turn. 1 Check the piping connections. 2 Connect the charging hose of low pressure side of manifold gauge to the packed valve having a service port (3/8 service valve) as shown at the figure. Indoor -unit Indoor -unit Vacuum Pump The designs and shape are subject to change according to the model. 3 Open the valve of the low pressure side of manifold gauge counter-clockwise. 4 Purge the air from the system using vacuum pump for about 10 minutes. - Close the valve of the low pressure side of manifold gauge clockwise. - Make sure that pressure gauge show -0.1MPa(-76cmHg) after about 10 minutes. This procedure is very important in order to avoid gas leak. - Turn off the vacuum pump - Remove the hose of the low pressure side of manifold gauge. Liquid side Gas side Valve stem Service port Stem cap 5 Set valve cork of both liquid side and gas side of packed valve to the open position. 6 Mount the valve stem nuts and the service port cap to the valve, and tighten them at the torque of 183kgf cm with a torque wrench. 7 Check for gas leakage. - t this time, especially check for gas leakage from the 3-way valve s stem nuts, and from the service port cap. Refrigerant Refill If connecting pipe of more than 7.5 metres is installed, additional refrigerant should be charged by extra metre. You don t have to charge additional refrigerant up to 7.5 metres of connecting pipe. When length of the pipe is over 7.5 meters by the unit, you should charge the refrigerant according to the formulas below. MH18P1(P2)X, MH19P1(P2)X, MH24P1(P2)X MH26P1(P2)X - La: the length of -unit's pipe(meter) -unit -unit -unit /C-unit α x (La - 7.5) α x (La - 15) - Lb: the length of -unit's pipe & C-unit's pipe(meter) α (Unit:g/m) MH18P1(P2)X MH19P1(P2)X MH24P1(P2)X MH26P1(P2)X Remarks -unit 20 /C-unit 20 18 25 16 16 16 21 R410 E-18
COMPLETING THE INSTLLTION Performing Leak Tests efore completing the installation (insulation of the cables, hose and piping and fixing of the indoor unit to the installation plate), you must check that there are no gas leaks. ENGLISH To check for gas leaks on the... Then, using a leak detector, check the... C D Indoor unit Flare nuts at the end of sections C and D. Outdoor unit Valves on sections and. The designs and shape are subject to change according to the model. Placing the Indoor Unit in Position Once you have checked that there are no leaks in the system, you can insulate the piping, hose and cables and place the indoor unit on the installation plate. 1 To avoid condensation problems, place heat-resistant polyethylene foam separately around each refrigerant pipe in the lower part of the indoor unit. 2 Wind insulating tape around the pipes, assembly cable and drain hose. 3 Place the resulting bundle carefully in the lower part of the indoor unit, making sure that it does not jut out from the rear of the indoor unit. 4 Hook the indoor unit on to the installation plate and move the unit to the right and left until you are sure that it is securely in place. 5 Finish wrapping vinyl tape around the rest of the piping leading to the outdoor unit. Installation plate 6 Using clamps (optionally supplied), attach the piping to the wall wherever possible. E-19
COMPLETING THE INSTLLTION Checking and Testing Operations To complete the installation, perform the following checks and tests to ensure that the air conditioner is operating correctly. INDOOR UNIT Room select switch(,, C unit) 1 Review all the following elements in the installation: Installation site strength Piping connection tightness to detect any gas leakages Connection wiring Heat-resistant insulation of the piping Drainage Earthing wire connection Correct operations (follow the steps below) Room select switch in the indoor unit ROOM NO Room select switch 1(#51) 2(#52) unit ON ON unit ON OFF unit OFF OFF C unit OFF ON 2 pply the power to the outdoor unit. - Check the fuse (250V~, 5) : The fuse is opened when the power line (L, N) is short. E-20
COMPLETING THE INSTLLTION ENGLISH 3 Check the connection of PC communication of outdoor unit. (Check whether the red LED of outdoor unit PC is flickering.) The communication lamp is flickering after the display of each unit on the outdoor PC display part. (every one second). LED is not flickering, if the connection is bad or the room select switch is located in the wrong position. - LED lamp (red) flickering after display of (0.5 sec) - LED lamp (red) flickering after display of (0.5 sec) - LED lamp (red) flickering after display of C (0.5 sec) Note : PC switch C is used for triple split multi air conditioner. Result: If all of three units display lamps are flickering, the connection wires and the room option connections are good. If the lamp is not flickering, check as follows:. Check the display part of indoor unit of each unit (,) after outdoor unit PC switch S/W- is on. Check the status of each unit indoor room select switch. (djust the select switch suitable to the unit,.) - unit : - unit : - C unit : Type, Type OUTDOOR UNIT : PC display : Red LED C : PC switch Type C OUTDOOR UNIT TEST OPERTING C C. Check the communication connection of outdoor unit PC (Check whether the red LED of outdoor unit PC is flickering). The communication lamp is flickering after the display of each unit on the outdoor unit PC. (every one second) - LED lamp (red) is flickering after display of (0.5 sec) - LED lamp (red) is flickering after display of (0.5 sec) - LED lamp (red) is flickering after display of C (0.5 sec) Result: If all of three units display lamps are flickering, the connection wires and the room option connections are good. : PC display : Red LED C : PC switch S/W- S/W- S/W-C TEST OPERTING C E-21
COMPLETING THE INSTLLTION Checking and Testing Operations (Cont.) The error indicated on the display panel of indoor unit DISPLY LL LMP is flickering EXPLNTION Indoor unit room temperature sensor error IN sensor of indoor unit heat exchanger error Indoor unit fan motor Indoor unit communication error Indoor unit EEPROM error Indoor unit EEPROM option error outdoor unit, C cools and heats simultaneously outdoor unit pipe is wrong connected outdoor unit sensor error(short/open) outdoor unit sensor error(short/open) outdoor unit sensor error(short/open) Error in setting indoor unit's address & outdoor unit communication error REMRK When inputting MICOM over 4.9V and below 0.4V 15 seconds after the fan operating below 450RPM Wrong data for 60 seconds Cool and heat mode is operating simultaneously. The pipes or the cables are wrong connected. Check the temperature sensor of condenser pipe. Check the temperature sensor of condenser pipe. Check the outdoor temperature sensor. E-22
COMPLETING THE INSTLLTION ENGLISH The error indicated on the PC display of outdoor unit DISPLY EXPLNTION Outdoor sensor error (Short/Open) Outdoor cond pipe sensor error (Short/Open) Outdoor cond pipe sensor error (Short/Open) REMRK e sure to check after applying the power to the outdoor unit. Outdoor C cond pipe sensor error (Short/Open) unit test operation error unit test operation error C unit test operation error unit test communication error unit test communication error Display when the test operation finishes. When the pipe temperature difference of indoor unit (pipe temperature 4 minutes before - ctual pipe temperature) is less than 5 C. e sure to check during the test operation. C unit test communication error,,c unit all communication error room test operation OK Display of power application. Display 4 minutes after the COMP is on. room test operation OK C room test operation OK Communication unit number display : unit Communication unit number display : unit Communication unit number display : C unit (In case of triple split multi air conditioner) High temperature of the cond Normal operation Unit, and C are changed every one second. C The communication lamp is flickering after display of each unit. (possibility to check the communication status) During the test operation the unit under test is on and off every 0.25s. High temperature of the cond Refrigerant leaks E-23
COMPLETING THE INSTLLTION Checking and Testing Operations Type, Type OUTDOOR UNIT TEST OPERTING C 4 Check the test operation status by pressing the PC switch S/W- and S/W- of outdoor unit. Check the operation status by pushing the switch one at time. Perform the test operation only for the unit selected last. Check the pipe pressure and the other operation status during the test operation. Check items when the error occurs during the test operation (each unit) - Check there is enough refrigerant. - Check pipe connections. : PC display : Red LED C : PC switch Type C OUTDOOR UNIT : PC display : Red LED C : PC switch C S/W- S/W- S/W-C TEST OPERTING C EXMPLE In case of unit test, push once the PC switch S/W- (same for unit ). - In such a case, the indoor unit of unit is operated automatically by the outdoor unit. - In case the unit test stops, push once more the switch S/W-. < Operation > 1. Once the test is started, the COMP is on and Good (displayed Gd) or Error (displayed Er) is displayed after 4 minutes. : Taking difference between the present temperature of indoor heat exchanger and the temperature 4 minutes later, if the temperature difference is over 5 C, the connection is good or if the temperature difference is below 5 C, the connection is bad. 2. If the result of the test operation is good operation, is possible for 30 minutes max. If there is an error, the outdoor unit shall be stopped immediately. If an error occurs, push switch S/W- or S/W- once to resume from the error status. Restart is then possible. 3. Once the test operation is completed, push switch S/W- or S/W- to finish the test. 4. Once the test is completed, operate the indoor unit normally. 5. Check the operation is normal. Start up is over. E-24
COMPLETING THE INSTLLTION Explaining Operations to the Owner efore leaving the premises on which you have installed the air conditioner, you should explain the following operations to the owner, making reference to the appropriate pages in the owner s instruction booklet. ENGLISH 1 How to start and stop the air conditioner. 2 How to select the operating mode and adjust the temperature and fan settings. 3 How to adjust the air flow direction. 4 How to set the timers. 5 How to remove and clean the filters. Once the owner is happy with the basic operations, hand over the owner s instruction booklet and this installation manual for storage in a handy and safe place. E-25
THIS IR CONDITIONER IS MNUFCTURED Y: ESTE IRE CONDICIONDO H SIDO FRICDO POR: CE CLIMTISEUR EST FRIQUE PR: QUESTO CONDIZIONTORE D RI È PRODOTTO D: ESTE PRELHO DE R CONDICIONDO É FRICDO POR: DIESE KLIMNLGE IST FRIZIERT VON: YTH H Y KEYH KT KEY THKE O: ELECTRONICS