Indoor Units / Unités intérieures / Inneneinheiten / Unità interne / Unidades interiores / Εσωτερικές μονάδες / Unidades interiores

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1 INSTALLATION AND OPERATION MANUAL MANUEL D INSTALLATION ET D OPÉRATION EINBAU- UND BEDIENUNGSANLEUNG MANUALE DI INSTALLAZIONE E FUNZIONAMENTO MANUAL INSTALAÇÃO E OPERAÇÃO ΕΓΧΕΙΡΙΔΙΟ ΕΓΚΑΤΑΣΤΑΣΗΣ ΚΑΙ ΛΕΙΤΟΥΡΓΙΑΣ MANUAL INSTALACIÓN Y FUNCIONAMIENTO MULTISET System Air Conditioner for Refrigerant R40A Climatiseur Système MULTISET pour réfrigérant R40A MULTISET System-Klimaanlage für Kühlmittel R40A Condizionatore d aira con sistema MULTISET per refrigerante R40A Sistema de Ar Condicionado MULTISET para Refrigerante R40A Κλιματιστικό Σύστημα MULTISET για το ψυκτικό μέσο R40A Acondicionador de aire con sistema MULTISET para refrigerante R40A GB Indoor Units / Unités intérieures / Inneneinheiten / Unità interne / Unidades interiores / Εσωτερικές μονάδες / Unidades interiores 7 9 MPAFM MPAFM78R5I MPAFM98R5I MPAFM8R5I MPAFM : Wall-Mounted / Montage mural / Wandmontage / Montato a muro / Mural / Επιτοίχια μονάδα / Montaje en pared Outdoor Units / Unités extérieures / Außeneinheiten / Unità esterne / Unidades exteriores / Εξωτερικές μονάδες / Unidades exteriores Heat Pump Unit / Unité pompe à chaleur / Wärmepumpeneinheit / Unità pompa di calore / Unidade de bomba de calor / Μονάδα αντλίας θερμότητας / Unidad de bomba de calor FMI FMIV FMI 06R5I, FMI 406R5I, FMI 506R5I FMIV 705R, FMIV 905R, FMIV 55R, FMIV 05R, FMIV 405R * Refrigerant R40A is used in the outdoor units. * Le réfrigérant R40A est utilisé dans les unités extérieures. * In den Außeneinheiten wird das Kühlmittel R40A verwendet. * Le unità esterne usano come refrigerante l R40A. * O refrigerante R40A é utilizado nas unidades exteriores. * Το ψυκτικό μέσο R40A χρησιμοποιείται στις εξωτερικές μονάδες. * En las unidades exteriores se emplea el refrigerante R40A

2 INSTALLATION AND OPERATION MANUAL MULTISET System Air Conditioner for Refrigerant R40A GB INSTALLATION AND OPERATION MANUAL MULTISET System Air Conditioner for Refrigerant R40A For Indoor Unit MPAFM Type R40A Models Indoor Units Indoor Unit Type 7 9 MPAFM Wall-Mounted MPAFM78R5I MPAFM98R5I MPAFM8R5I Outdoor Units FMI Heat Pump Unit FMI 06R5I, FMI 406R5I, FMI 506R5I FMIV Heat Pump Unit FMIV 705R, FMIV 905R, FMIV 55R, FMIV 05R, FMIV 405R * Refrigerant R40A is used in the outdoor units

3 GB IMPORTANT! Please Read Before Starting This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently.. The standards for minimum room volume are as follows. For safe installation and trouble-free operation, you must: Carefully read this instruction booklet before beginning. Follow each installation or repair step exactly as shown. Observe all local, state, and national electrical codes. Pay close attention to all warning and caution notices given in this manual. This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death. () No partition (shaded portion) This symbol refers to a hazard or unsafe practice which can result in personal injury or product or property damage. If Necessary, Get Help These instructions are all you need for most installation sites and maintenance conditions. If you require help for a special problem, contact our sales/service outlet or your certified dealer for additional instructions. () When there is an effective opening with the adjacent room for ventilation of leaking refrigerant gas (opening without a door, or an opening 0.5% or larger than the respective floor spaces at the top or bottom of the door). In Case of Improper Installation The manufacturer shall in no way be responsible for improper installation or maintenance service, including failure to follow the instructions in this document. SPECIAL PRES Refrigerant tubing WARNING When Wiring ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR ATH. ONLY A QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEM TO WIRE THIS SYSTEM. Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked. Highly dangerous electrical voltages are used in this system. Carefully refer to the wiring diagram and these instructions when wiring. Improper connections and inadequate grounding can cause accidental injury or death. the unit following local electrical codes. Connect all wiring tightly. Loose wiring may cause overheating at connection points and a possible fire hazard. When Transporting Be careful when picking up and moving the indoor and outdoor units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin aluminum fins on the air conditioner can cut your fingers. When Installing In a Room Properly insulate any tubing run inside a room to prevent sweating that can cause dripping and water damage to walls and floors. In Moist or Uneven Locations Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the outdoor unit. This prevents water damage and abnormal vibration. In an Area with High Winds Securely anchor the outdoor unit down with bolts and a metal frame. Provide a suitable air baffle. In a Snowy Area (for Heat Pump-type Systems) Install the outdoor unit on a raised platform that is higher than drifting snow. Provide snow vents. When Connecting Refrigerant Tubing Ventilate the room well, in the event that is refrigerant gas leaks during the installation. Be careful not to allow contact of the refrigerant gas with a flame as this will cause the generation of poisonous gas. Keep all tubing runs as short as possible. Use the flare method for connecting tubing. Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them, then tighten the nut with a torque wrench for a leak-free connection. Check carefully for leaks before starting the test run. When Servicing Turn the power OFF at the main power box (mains) before opening the unit to check or repair electrical parts and wiring. Keep your fingers and clothing away from any moving parts. Clean up the site after you finish, remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced. Ventilate any enclosed areas when installing or testing the refrigeration system. Escaped refrigerant gas, on contact with fire or heat, can produce dangerously toxic gas. Confirm after installation that no refrigerant gas is leaking. If the gas comes in contact with a burning stove, gas water heater, electric room heater or other heat source, it can cause the generation of poisonous gas. WARNING () If an indoor unit is installed in each partitioned room and the refrigerant tubing is interconnected, the smallest room of course becomes the object. But when mechanical ventilation is installed interlocked with a gas leakage detector in the smallest room where the density limit is exceeded, the volume of the next smallest room becomes the object. Refrigerant tubing Very small room Large room Medium room Small room Mechanical ventilation device Gas leak detector. The minimum indoor floor space compared with the amount of refrigerant is roughly as follows: (When the ceiling is.7 m high) m Range below the density limit of 0. kg/m (countermeasures not needed) Range above the density limit of 0. kg/m (countermeasures not needed) Min. indoor floor space kg Total amount of refrigerant Check of Density Limit The room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas leaking out, its density will not exceed a set limit. The refrigerant (R40A), which is used in the air conditioner, is safe, without the toxicity or combustibility of ammonia, and is not restricted by laws imposed to protect the ozone layer. However, since it contains more than air, it poses the risk of suffocation if its density should rise excessively. Suffocation from leakage of refrigerant is almost non-existent. With the recent increase in the number of high density buildings, however, the installation of multi air conditioner systems is on the increase because of the need for effective use of floor space, individual control, energy conservation by curtailing heat and carrying power, etc. Most importantly, the multi air conditioner system is able to replenish a large amount of refrigerant compared to conventional individual air conditioners. If a single unit of the multi air conditioner system is to be installed in a small room, select a suitable model and installation procedure so that if the refrigerant accidentally leaks out, its density does not reach the limit (and in the event of an emergency, measures can be taken before injury can occur). In a room where the density may exceed the limit, create an opening with adjacent rooms, or install mechanical ventilation combined with a gas leak detection device. The density is as given below. Total amount of refrigerant (kg) Min. volume of the indoor unit installed room (m) < Density limit (kg/m) The density limit of refrigerant which is used in multi air conditioners is 0. kg/m (ISO 549).. If there are or more refrigerating systems in a single refrigerating device, the amount of refrigerant should be as charged in each independent device. For the amount of charge in this example: e.g., charged amount (5 kg) e.g., charged amount (0 kg) Room A Room B Room C Room D Room E Room F The possible amount of leaked refrigerant gas in rooms A, B and C is 0 kg. The possible amount of leaked refrigerant gas in rooms D, E and F is 5 kg.

4 -5. Additional Materials Required for Installation. Refrigeration (armored) tape. Insulated staples or clamps for connecting wire (See your local codes.). Putty 4. Refrigeration tubing lubricant 5. Clamps or saddles to secure refrigerant tubing 6. Scale for weighing. SELECTING THE INSTALLATION SE -. Indoor Unit AVOID: areas where leakage of flammable gas may be expected. places where large amounts of oil mist exist. direct sunlight. locations near heat sources which may affect the performance of the unit. locations where external air may enter the room directly. This may cause sweating on the air discharge ports, causing them to spray or drip. locations where the remote will be splashed with water or affected by dampness or humidity. installing the remote behind curtains or furniture. locations where high-frequency emissions are generated. DO: select an appropriate position from which every corner of the room can be uniformly cooled. select a location where tubing and drain pipe have the shortest run to the outdoor unit. allow room for operation and maintenance as well as unrestricted air flow around the unit. install the unit within the maximum elevation difference above or below the outdoor unit and within a total tubing length (L) from the outdoor unit as detailed in the installation manual packed with the outdoor unit. allow room for mounting the remote about m off the floor, in an area that is not in direct sunlight nor in the flow of cool air from the indoor unit. Air delivery will be degraded if the distance from the floor to the ceiling is greater than m. Wall-Mounted Type min. 5 cm min. 5 cm min. 5 cm Front View GB. GENERAL This booklet briefly outlines where and how to install the air conditioning system. Please read over the entire set of instructions for the indoor and outdoor units and make sure all accessory parts listed are with the system before beginning. -. Tools Required for Installation (not supplied). Flathend screwdriver. Phillips head screwdriver. Knife or wire stripper 4. Tape measure 5. Carpenter s level 6. Sabre saw or key hole saw 7. Hacksaw 8. Core bits 9. Hammer 0. Drill. Tube cutter. Tube flaring tool. Torque wrench 4. Adjustable wrench 5. Reamer (for deburring) -. Accessories Supplied with Unit Table Parts Figure Q ty 8 Truss-head Phillips 4 0 mm Tapping screw Clamp Packed in the indoor unit. -. Optional Copper Tubing Kit Copper tubing for connecting the outdoor unit to the indoor unit is available in kits which contain the liquid and gas tubing, fittings and insulation. Consult your nearest sales outlet or A/C workshop. -4. Type of Copper Tube and Insulation Material If you wish to purchase these materials separately from a local source, you will need:. Deoxidized annealed copper tube for refrigerant tubing as detailed in Table. Cut each tube to the appropriate lengths +0 cm to 40 cm to dampen vibration between units. Liquid Tube Gas Tube Outer Dia. Thickness Outer Dia. Thickness Table Model MPAFM78R5I 6.5 mm 0.8 mm.70 mm 0.8 mm MPAFM98R5I 6.5 mm 0.8 mm.70 mm 0.8 mm MPAFM8R5I 6.5 mm 0.8 mm.70 mm 0.8 mm. Foamed polyethylene insulation for the specified copper tubes as required to precise length of tubing. Wall thickness of the insulation should be not less than 8 mm.. Use insulated copper wire for field wiring. Wire size varies with the total length of wiring. Refer to 5. ELECTRICAL WIRING for details. Check local electrical codes and regulations before obtaining wire. Also, check any specified instructions or limitations. 5 CONTENTS Page Page 8. HOW TO INSTALL THE TIMER REMOTE CONTROLLER (OIONAL PART) IMPORTANT! Please Read Before Starting Check of Density Limit Refer to the Instruction Manual attached to the optional Timer Remote Control Unit.. GENERAL WHEN USING WIRELS REMOTE CONTROLLER INSTEAD OF WIRED REMOTE CONTROLLER K70D04Z for Wall-Mounted (MPAFM-Type) -. Tools Required for Installation (not supplied) -. Accessories Supplied with Unit -. Optional Copper Tubing Kit -4. Type of Copper Tube and Insulation Material -5. Additional Materials Required for Installation 0. APPENDIX Name of Parts Care and Cleaning Troubleshooting. SELECTING THE INSTALLATION SE Indoor Unit Tips for Energy Saving. HOW TO INSTALL THE INDOOR UN Remove the Rear Panel from the Unit -. Make a Hole -. Install the Rear Panel on the Wall -4. Remove the Grille to Install the Indoor Unit -5. Shape the Indoor Side Tubing -6. Wiring Instructions -7. Wiring Instructions for Inter-unit Connections -8. Mounting -9. Drain Hose 4. ADDRS SETTING AND TT RUN Emergency Operation 4-. Address Setting 4-. Test Run 5. ELECTRICAL WIRING General Precautions on Wiring 5-. Recommended Wire Length and Wire Diameter for Power Supply System 5-. Wiring System Diagram 6. HOW TO PROCS TUBING Connecting the Refrigerant Tubing 6-. Connecting Tubing Between Indoor and Outdoor Units 6-. Insulating the Refrigerant Tubing 6-4. Taping the Tubes 6-5. Finishing the Installation 7. SETTING THE MAIN REMOTE CONTROLLER AND SUB- REMOTE CONTROLLER Basic Connection 7-. In Case of Group Control 7-. Wiring System Diagram for Group Control 7-4. Meaning of Alarm Messages 4

5 GB -4. Remove the Grille to Install the Indoor Unit Basically, these models can be installed and wired without removing the grille. If access to any internal part is needed, follow the steps as given below. How to remove the grille () Grasp both ends of the air intake grille, and remove it by opening towards the front and pulling towards you. (Fig. -). HOW TO INSTALL THE INDOOR UN -. Remove the Rear Panel from the Unit () Remove and discard the set screw on the rear panel. (Fig. -) Fig. - () Press the marks on the frame cover and disengage the stationary tabs from the frame. (Fig. -) Fig. - Air intake grille Grille () Remove the rear panel. Tubing can be extended in 5 directions as shown in Fig. -. Select the direction you need providing the shortest run to the outside unit. Fig. - Fig. - When left tubing is to be done, switch the drain hose and drain cap. (For details, refer to Switching drain hose and drain cap.) () Remove the screws. (Fig. -) -. Make a Hole () Place the rear panel from the indoor unit on the wall at the location selected. Make sure the panel is horizontal, using a carpenter s level or tape measure to measure down from the ceiling. Wait until after cutting the hole before attaching the rear panel to the wall. () Determine which side of the unit you should make the hole for tubing and wiring. (Fig. -4) Fig mm Fig. -4 In the case of left-rear tubing, use the measurement points from the edge of the rear panel for precise placement of the hose outlet. (Fig. -4) () Before making the hole, check carefully that no studs or pipes are directly run behind the spot to be cut. Also avoid areas where electrical wiring or conduits are located. The above precautions are also applicable if tubing goes through the wall in any other location. (4) Using a sabre saw, key hole saw or hole-cutting drill attachment, cut a hole in the wall. (Fig. -5) Fig. -5 Table Hole Dia. (mm) MPAFM78R5I/98R5I/8R5I 65 (5) Measure the thickness of the wall from the inside edge to the outside edge and cut PVC pipe at a slight angle 6 mm shorter than the thickness of the wall. (Fig. -6) Fig. -6 Set screw only for transportation Rear panel marks Left tubing Right-rear tubing (recommended) Left-rear tubing Right tubing Downward tubing () Press the tabs at the top of the grille and the tabs on the front face to separate the grille from the frame. (Fig. -) Tab Tab Fig. - (4) Pull the grille toward you to remove it. How to replace the grille () When installing the grille, place the bottom of the grille into the frame first. (Fig. -4) Then insert the tabs on the top of the grille and on the front face into the frame. Fig. -4 () Make sure that the grille and frame are firmly fitted together by engaging the tabs. () Affix the grille with the previously removed screws. (Fig. -) (6) Place the plastic cover over the end of the pipe (for indoor side only) and insert the pipe in the wall. (Fig. -7) OUTSI INSI Wall PVC pipe Plastic cover (Locally purchased) Slight angle Fig. -7 Hole should be made at a slight downward slant to the outdoor side. -. Install the Rear Panel on the Wall Be sure to confirm that the wall is strong enough to suspend the unit. See either item a) or b) below depending on the wall type. a) If Wooden Wall () Attach the rear panel to the wall with the 8 screws provided. (Fig. -8) Fig. -8 If you are not able to line up the holes in the rear panel with the beam locations marked on the wall, use rawl plugs or toggle bolts to go through the holes on the panel or drill 5 mm dia. holes in the panel over the stud locations and then mount the rear panel. () Double check with a carpenter s level or tape measure that the panel is level. This is important to install the unit properly. (Fig. -9) Fig. -9 () Make sure the panel is flush against the wall. Any space between the wall and unit will cause noise and vibration. b) If Block, Brick, Concrete or Similar Type Wall Make 4.8 mm dia. holes in the wall. Insert rawl plugs for appropriate mounting screws. (Fig. -0) 4.8 mm dia. hole Rawl plug (Locally purchased) Fig Outdoor side Indoor side PVC pipe (Locally purchased) Cut at slight angle 4

6 () Using a screwdriver, loosen the terminal screw on the terminal plate. () Insert the wire and tighten the terminal screw completely using a screwdriver. b) For Outdoor Unit For solid core wiring (or F-cable) () Cut the wire end with a cutting pliers, then strip the insulation to expose the solid wire about 5 mm. (Fig. -5) For outdoor unit Solid wire Loop Strip 5 mm GB (4) Install the air intake grille. (a) Allow the edge of the air intake grille to slide into the top of the indoor unit, and then insert it all the way inside. (Fig. -5) Fig. -5 (b) Press the bottom right and left corners and center of the air intake grille to attach it to the indoor unit. (Fig. -6) Fig. -6 Attach so that the round pins at the top right and left corners of the air intake grille are inserted into the grooves at the top right and left of the indoor unit. -5. Shape the Indoor Side Tubing () Arrangement of tubing by directions a) Right or left tubing Cut out the corner of the right/left frame with a hacksaw or the like. (Figs. -7 and -8) Fig. -7 Fig. -8 b) Right-rear or left-rear tubing In this case, the corner of the frame need not be cut. () To mount the indoor unit on the rear panel: Hang the mounting slots of the unit on the upper tabs of the rear panel. (Fig. -9) Fig Insulation -6. Wiring Instructions General precautions on wiring () Before wiring, confirm the rated voltage of the unit as shown on its nameplate, then carry out the wiring closely following the wiring diagram. () Provide a power outlet to be used exclusively for each unit, with a power supply disconnect and circuit breaker for overcurrent protection provided in the exclusive line. () To prevent possible hazard due to insulation failure, the unit must be grounded. (4) Each wiring connection must be done tightly and in accordance with the wiring system diagram. Wrong wiring may cause the unit to misoperate or become damaged. (5) Do not allow wiring to touch the refrigerant tubing, compressor, or any moving parts of the fan. (6) Unauthorized changes in the internal wiring can be very dangerous. The manufacturer will accept no responsibility for any damage or misoperation that occurs as a result of such unauthorized changes. -7. Wiring Instructions for Inter-unit Connections () Grasp both ends of the air intake grille, and remove it by opening toward the front and pulling it toward you. () Remove the screw on the right side cover plate and open the cover. (Fig. -0) Fig. -0 () Insert the inter-unit wiring into the through-the-wall PVC pipe. Lead the power wiring into the room allowing approx. 5 cm to extend from the wall face. (Fig. -) 5 cm Fig. - Frame Frame Left tubing outlet Fig. -5 Right tubing outlet () Using a screwdriver, remove the terminal screw(s) on the terminal plate. () Using the pliers, bend the solid wire to form a loop suitable for the terminal screw. (4) Shape the loop wire properly, place it on the terminal plate and fix it securely with the removed terminal screw using a screwdriver. For stranded wiring () Cut the wire end with a cutting pliers, then strip the insulation to expose the stranded wiring about 0 mm and tightly twist the wire ends. (Figs. -6 and -7) Twist wire ends Stranded wire Ring connector Fig. -7 Fig. -6 () Using a screwdriver, remove the terminal screw(s) on the terminal plate. () Using a ring connector fastener or pliers, securely clamp each stripped wire end with a ring connector. (Fig. -6) (4) Place the ring connector wire, and replace and tighten the removed terminal screw using a screwdriver. (Fig. -8) Special washer Screw Screw and special washer Ring connector Terminal plate Ring connector Wire Wire Fig. -8 (4) Route the inter-unit wiring from the back of the indoor unit and pull it toward the front for connection. (Fig. -) Fig. - (5) Connect the inter unit wiring to the corresponding terminals on the terminal plate (Fig. -) while referring to the wiring diagram. (6) Be sure to secure the wiring with the provided clamp. When closing the air intake grille, press the bottom right and left corners and center. (Fig. -) Strip 0 mm Fig. - Please refer to How to replace the grille for installing the air intake grille. WARNING Loose wiring may cause the terminal to overheat or result in unit malfunction. A fire hazard may also exist. Therefore, be sure all wiring is tightly connected. When connecting each power wire to the corresponding terminal, follow the instructions How to connect wiring to the terminal and fasten the wire securely tight with the fixing screw of the terminal plate. How to connect wiring to the terminal a) For Indoor Unit () Cut the wire end with a cutting pliers, then strip the insulation to expose the wire about 7 mm. See the label (Fig. -4) near the terminal plate. For indoor unit (ACTUAL SIZE) 7 mm STRIP SIZE Fig Cover Rear panel Plastic cover Wiring 5

7 GB -9. Drain Hose a) The drain hose should be slanted downward to the outdoors. (Fig. -40) Slant Drain hose -8. Mounting () To install the indoor unit, mount the indoor unit onto the tabs on the upper part of the rear plate. () Hold down the air discharge outlet and press the lower part of the indoor unit until it clicks to securely fasten to the tabs on the lower part of the rear plate. (Fig. -9) Indoor unit Fig. -0 For tubing, choose either the right or left tubing direction and follow the steps below. This work can be made easier by placing padding material (such as styrofoam) at the rear right side of the indoor unit. (Fig. -0) Right-side tubing Fig. -40 () Shape the refrigerant tubing so that it can easily go into the wall hole. (Fig. -) b) Never allow a trap to form in the course of the hose. c) If the drain hose will run in the room, insulate the hose with insulation* so that chilled condensation will not damage furniture or floors. (Fig. -4) Fig. - () Push the wiring, refrigerant tubing, and drain hose through the hole in the wall. Adjust the indoor unit so it is securely seated on the rear panel. (Fig. -) Fig. - () Carefully bend the tubing (if necessary) to run along the wall in the direction of the outdoor unit and then tape as far as the fittings. The drain hose should come straight down the wall to a point where water runoff won t stain the wall. 0 (4) Connect the refrigerant tubing to the outdoor unit. (After performing a leak test on the connecting part, insulate it with the tubing insulation. (Fig. -)) Fig. - (5) Assemble the refrigerant tubing, drain hose, and inter-unit wiring as shown in Fig. -. Left-side tubing () Lead the tubing and drain hose through the wall, allowing sufficient length for connection. Then bend the tubing using a tube bender to make the attachment. (Fig. -4) Fig. -4 () Switch the drain hose and drain cap. Switching drain hose and drain cap (a) Locate the drain hose and the drain cap. (Fig. -5) Fig. -5 (b) Remove the screws fastening the drain hose on the right side, and pull out the drain hose to remove it. (Fig. -5) (c) Apply moderate force to pull off the drain cap on the left side. (If you cannot pull it off by hand, use a longnose pliers.) (d) Reattach the drain hose to the left side and the drain cap to the right side. (Fig. -6) Padding material Push Fig. -9 Rear panel Cover Refrigerant tubing Inter-unit wiring Drain hose Condensation Fig. -4 Insulation material (locally purchased) must be used. * Foamed polyethylene or its equivalent is recommended. WARNING Do not supply power to the unit or operate it until all tubing and wiring to the outside unit are completed. Risk of Electric Shock 4. ADDRS SETTING AND TT RUN 4-. Emergency Operation Emergency operation is effective as a temporary measure when the remote is out of order or lost. Emergency Operation mode LED display ON OFF OFF () Press the OPERATION button on the indoor unit. Refer to Emergency Operation mode.* () When the OPERATION button is pressed again, the operation stops and the LED indicators go off. If the indoor temperature is over 4 C when operating, Cooling mode is selected. If the indoor temperature is below 4 C, Heating mode is selected with the Fast fan speed. If the automatic cooling and heating control is not activated, cooling or heating operation is selected after comparing the indoor temperature with the preset temperature. In case of the cooling unit, it only functions as Cooling mode. Drain hose Slide the drain hose fully onto the drain pan outlet until the drain hose edge is pushed into the insulation. Check that the screw holes in the drain bracket and the drain pan outlet are aligned and securely in contact, then fasten them with the screw. (After attaching the drain hose, check that it is attached securely.) (Fig. -7) Screw hole Drain pan outlet Insulation Drain hose Fig. -7 Drain bracket Drain bracket Drain hose Screw Drain cap Use a Phillips screwdriver to push the drain cap in firmly. (If it is difficult to push in, wet the cap with water first.) () Install the indoor unit on the rear panel. (4) Connect the tubing and wiring led inside from outdoors. (5) After completing a leak test, bundle the tubing together with armoring tape and store it inside the tubing storage area at the back of the indoor unit and hold it with clamps. (Fig. -8) Refrigerant tubing Inter-unit wiring Fig. -8 To unmount indoor unit Press the marks on the lower part of the indoor unit and unlatch the tabs. Then lift the indoor unit and unmount. (Fig. -9) Push Fig. -9 Insulation Rear panel Hole in wall Gas tube Liquid tube Bent part Drain cap Drain hose Drain hose Clamp Drain cap Fig. -6 6

8 GB 4-. Address Setting Address setting is effective to prevent interference when there are more than two indoor units with the wireless remote functioning in the same room. Set the indoor unit to Address Setting mode. Press and hold the ADR (Address) button for at least 4 seconds to set the unit in Address Setting mode. Address Setting mode LED display Lamps,, and turn ON -> OFF in sequence. Each is ON for second. () Press and hold the ADR (Address) button on the wireless remote to start the Address indicator blinking. () Press and hold the ADR button to start the address number blinking. () Select the desired address number by pressing the ADR button on the wireless remote. (4) Press any button other than the ADR button on the wireless remote. (5) The buzzer sounds on the indoor unit. (6) Press the OPERATION button to cancel Address Setting mode. After minutes, Address Setting mode is automatically cancelled. At the time of shipment, the address setting is set to ALL. In this case, operation is possible regardless of the remote s address setting. Also, if the remote s address is set to ALL, operation is possible regardless of the indoor unit s address setting. 4-. Test Run Test Run mode LED display Blinking () Press and hold the OPERATION button on the indoor unit for at least 4 seconds to set the unit in Address Setting mode. Confirm that all LED indicators are blinking. () Press and hold the OPERATION button to set the unit in Test Run mode. Test Run mode will continue for an hour and then stop automatically. If you wish to stop Test Run, press the OPERATION button. IMPORTANT 5-. Recommended Wire Length and Wire Diameter for Power Supply System After the test run is completed, be sure to press the RET button to return the system to normal operation. The air conditioner will not operate correctly if this is not done. (B) Power supply Time delay fuse or.5 mm circuit capacity Type MPAFM Max. 50 m 0 6 A (D) Remote control wiring *Emergency Operation Mode This mode functions under the following: ) temperature set at 4 C; ) Fast fan speed; and ) automatic cooling and heating operation. If automatic cooling and heating control is not activated, cooling or heating operation is selected after comparing the indoor temperature with the preset 4 C. In case of only cooling function, cooling operation is started. Do not hold the OPERATION button of the indoor unit down while the indoor unit s indicator lamps are blinking one after another. Be sure to operate Address Setting while the indoor unit is stopped. The address of the indoor unit is set to ALL at the time of shipment. 5. ELECTRICAL WIRING 5-. General Precautions on Wiring () Before wiring, confirm the rated voltage of the unit as shown on its nameplate, then carry out the wiring closely following the wiring diagram. () Provide a power outlet to be used exclusively for each unit, and a power supply disconnect and circuit breaker for overcurrent protection should be provided in the exclusive line. () To prevent possible hazards from insulation failure, the unit must be grounded. (4) Each wiring connection must be done in accordance with the wiring system diagram. Wrong wiring may cause the unit to misoperate or become damaged. (5) Do not allow wiring to touch the refrigerant tubing, compressor, or any moving parts of the fan. (6) Unauthorized changes in the internal wiring can be very dangerous. The manufacturer will accept no responsibility for any damage or misoperation that occurs as a result of such unauthorized changes. (7) Regulations on wire diameters differ from locality to locality. For field wiring rules, please refer to your LOCAL ELECTRICAL COS before beginning. You must ensure that installation complies with all relevant rules and regulations. (8) To prevent malfunction of the air conditioner caused by electrical noise, care must be taken when wiring as follows: The remote control wiring and the inter-unit control wiring should be wired apart from the inter-unit power wiring. Use shielded wires for inter-unit control wiring between units and ground the shield on both sides. (9) If the power supply cord of this appliance is damaged, it must be replaced by a repair shop appointed by the manufacturer, because special-purpose tools are required. Blinking Blinking All lamps blink at -second intervals. OPERATION lamp TIMER lamp STANDBY lamp OPERATION button 0.75 mm(awg #8) Use shielded wiring Control wiring (C) Inter-unit (between outdoor and indoor units) control wiring 0.75 mm(awg #8) Use shielded wiring* Max.,000 m Max. 500 m (F) Inter-outdoor unit control wiring 0.75 mm(awg #8) Use shielded wiring (E) Control wiring for group control 0.75 mm(awg #8) Use shielded wiring Max. 500 m (Total) Max. 500 m * With ring-type wire terminal. 7

9 GB 5-. Wiring System Diagram (for -Phase Outdoor Unit) L N L N L N D E B U U U U U U C L N U Except MPAFM-type Power supply 0-40V ~ 50/60Hz Remote WHT BLK Power supply 0-40V ~ 50/60Hz Remote WHT BLK Power supply 0-40V ~ 50/60Hz Group control: U () Refer to Section 5-. Recommended Wire Length and Wire Diameter for Power Supply System for the explanation of A, B, C, D, E and F in the above diagram. () The basic connection diagram of the indoor unit shows the 5P terminal board, so the terminal boards in your equipment may differ from the diagram. () Refrigerant Circuit (R.C.) address should be set before turning the power on. (4) Regarding R.C. address setting, refer to the installation manual supplied with the outdoor unit. Auto address setting can be executed by remote automatically. Refer to the installation manual supplied with the outdoor unit. 4 U U A L L L N () When linking outdoor units in a network (S-net link system), disconnect the terminal extended from the short plug (CN00, P Black, location: bottom right of outdoor main control PCB) from all outdoor units except any one of the outdoor units. (When shipping: In shorted condition.) Otherwise the communication of S-net link system is not performed. For a system without link (no connection wiring between outdoor units), do not remove the short plug. () Do not install the inter-unit control wiring in a way that forms a loop. (Fig. 5-) Prohibited Prohibited Fig. 5- () Do not install inter-unit control wiring such as star branch wiring. Star branch wiring causes mis-address setting. (Fig. 5-) Branch point NO Fig. 5- (4) If branching the inter-unit control wiring, the number of branch points should be 6 or fewer. (Branches less than m are not included in the total branch number.) (Fig. 5-) more than m Branch point 6 or fewer more than m less than m Fig. 5- (5) Use shielded wires for inter-unit control wiring (c) and ground the shield on both sides, otherwise misoperation from noise may occur. (Fig. 5-4) Connect wiring as shown in Section 5-. Wiring System Diagram. Shielded wire Fig. 5-4 D B B Indoor unit (No. ) C C D B C F A L L L N WARNING Indoor unit (No. ) Indoor unit (No. ) MPAFM-type Power supply 0-40V ~ 50/60Hz Remote WHT BLK Loose wiring may cause the terminal to overheat or result in unit malfunction. A fire hazard may also exist. Therefore, ensure that all wiring is tightly connected. When connecting each power wire to the terminal, follow the instructions in How to connect wiring to the terminal and fasten the wire securely with the fixing screw of the terminal plate. Indoor unit (No. n) INV unit Power supply 80-45V-N ~ 50Hz Inter-outdoor-unit control wiring INV unit Power supply 80-45V-N ~ 50Hz 5P terminal board (L) (N) 4 5 L N U U Power Unit control line supply MPAFM Type

10 When tightening the flare nut on the liquid tube, use a monkey wrench with a nominal handle length of 00 mm. 6-. Insulating the Refrigerant Tubing Tubing Insulation Thermal insulation must be applied to all unit tubing, including distribution joint (purchased separately). (Fig. 6-7) Two tubes arranged together Liquid tubing Gas tubing Insulation Fig. 6-7 * For gas tubing, the insulation material must be heat resistant to 0 C or above. For other tubing, it must be heat resistant to 80 C or above. Insulation material thickness must be 0 mm or greater. If the conditions inside the ceiling exceed DB 0 C and RH 70%, increase the thickness of the gas tubing insulation material by step. GB How to connect wiring to the terminal For stranded wiring () Cut the wire end with cutting pliers, then strip the insulation to expose the stranded wiring about 0 mm and tightly twist the wire ends. (Fig. 5-5) Fig. 5-5 () Using a Phillips head screwdriver, remove the terminal screw(s) on the terminal plate. () Using a ring connector fastener or pliers, securely clamp each stripped wire end with a ring pressure terminal. (4) Place the ring pressure terminal, and replace and tighten the removed terminal screw using a screwdriver. (Fig. 5-6) Fig HOW TO PROCS TUBING 6-. Connecting the Refrigerant Tubing Use of the Flaring Method Many of conventional split system air conditioners employ the flaring method to connect refrigerant tubes which run between indoor and outdoor units. In this method, the copper tubes are flared at each end and connected with flare nuts. Flaring Procedure with a Flare Tool () Cut the copper tube to the required length with a tube cutter. It is recommended to cut approx cm longer than the tubing length you estimate. () Remove burrs at the end of the copper tube with a tube reamer or file. This process is important and should be done carefully to make a good flare. (Fig. 6-) Deburring Fig. 6-6 When reaming, hold the tube end downward and be sure that no copper scraps fall into the tube. (Fig. 6-) Fig. 6- () Remove the flare nut from the unit and be sure to mount it on the copper tube. (4) Make a flare at the end of copper tube with a flare tool. (Fig. 6-) Fig. 6- A good flare should have the following characteristics: inside surface is glossy and smooth edge is smooth tapered sides are of uniform length Caution Before Connecting Tubes Tightly () Apply a sealing cap or water-proof tape to prevent dust or water from entering the tubes before they are used. () Be sure to apply refrigerant lubricant to the matching surfaces of the flare and union before connecting them together. This is effective for reducing gas leaks. (Fig. 6-4) Fig. 6-4 () For proper connection, align the union tube and flare tube straight with each other, then screw in the flare nut lightly at first to obtain a smooth match. (Fig. 6-5) Fig. 6-5 Adjust the shape of the liquid tube using a tube bender at the installation site and connect it to the liquid tubing side valve using a flare. Stranded wire Ring pressure terminal If the exterior of the outdoor unit valves has been finished with square duct covering, make sure you allow sufficient space to use the valves and to allow the panels to be attached and removed. Strip 0 mm Special washer Screw Gas Leakage Detector Note that the gas leakage detector should be capable of detecting the refrigerant R40A. Wire Air Purging Refer to AIR PURGING in the separate Installation Instructions for the outdoor unit in regard to air purging with a vacuum pump (for test run) preparation. Ring pressure terminal Terminal plate Insulation material The material used for insulation must have good insulation characteristics, be easy to use, be age resistant, and must not easily absorb moisture. Screw and Special washer Ring pressure terminal Wire After a tube has been insulated, never try to bend it into a narrow curve because it can cause the tube to break or crack. Before After 6-4. Taping the Tubes () At this time, the refrigerant tubes (and electrical wiring if local codes permit) should be taped together with armoring tape in bundle. To prevent the condensation from overflowing the drain pan, keep the drain hose separate from the refrigerant tubing. () Wrap the armoring tape from the bottom of the outdoor unit to the top of the tubing where it enters the wall. As you wrap the tubing, overlap half of each previous tape turn. () Clamp the tubing bundle to the wall, using clamp approx. each meter. (Fig. 6-8) Cautions During Brazing Replace air inside the tube with nitrogen gas to prevent copper oxide film from forming during the brazing process. (Oxygen, carbon dioxide and Freon are not acceptable.) Do not allow the tubing to get too hot during brazing. The nitrogen gas inside the tubing may overheat, causing refrigerant system valves to become damaged. Therefore allow the tubing to cool when brazing. Use a reducing valve for the nitrogen cylinder. Do not use agents intended to prevent the formation of oxide film. These agents adversely affect the refrigerant and refrigerant oil, and may cause damage or malfunctions. 6-. Connecting Tubing Between Indoor and Outdoor Units () Tightly connect the indoor-side refrigerant tubing extended from the wall with the outdoor-side tubing. () To fasten the flare nuts, apply specified torque. Indoor Unit Tubing Connection (,... n- ) 8 6 type Gas tubing ø.7 Liquid tubing ø6.5 Unit: mm When removing the flare nuts from the tubing connections, or when tightening them after connecting the tubing, be sure to use monkey wrenches or spanners as shown. (Fig. 6-6) Torque wrench Spanner Fig. 6-6 If the flare nuts are over-tightened, the flare may be damaged, which could result in refrigerant leakage and cause injury or asphyxiation to room occupants. For the flare nuts at tubing connections, be sure to use the flare nuts that were supplied with the unit, or else flare nuts for R40A (type ). The refrigerant tubing that is used must be of the correct wall thickness as shown in the table. Tube thickness Tightening torque, approximate Tube diameter 0.8 mm 4 8 N m (40 80 kgf cm) ø6.5 (/4") 0.8 mm 4 4 N m (40 40 kgf cm) ø9.5 (/8") 0.8 mm 49 6 N m ( kgf cm) ø.7 (/").0 mm 68 8 N m ( kgf cm) ø5.88 (5/8").0 mm 00 0 N m ( kgf cm) ø9.05 (/4") Because the pressure is approximately.6 times higher than conventional refrigerant pressure, the use of ordinary flare nuts (type ) or thin-walled tubes may result in tube rupture, injury, or asphyxiation caused by refrigerant leakage. In order to prevent damage to the flare caused by overtightening of the flare nuts, use the table as a guide when tightening. 7 Copper tubing Reamer Flare nut Copper tubing Flare tool Apply refrigerant lubricant Union Flare nut 9

11 GB Remote <Example > Connection wiring for group control 7-. In Case of Group Control When putting a MPAFM-type model indoor unit under group control, set all indoor units to sub remote control except for one unit. If the wireless receiver (sub remote ) is used, set the S switch on the Control PCB to OFF. When shipped, the S switch is set to the ON position. Terminal P No. 8 No. No. No. Inter-unit control wiring Clamp Insulated tubes Drain hose 7-. Basic Connection Fig. 6-8 Do not wind the armoring tape too tightly since this will decrease the heat insulation effect. Also ensure that the condensation drain hose splits away from the bundle and drips clear of the unit and the tubing Finishing the Installation After finishing insulating and taping over the tubing, use sealing putty to seal off the hole in the wall to prevent rain and draft from entering. (Fig. 6-9) Apply putty here Tubing Fig SETTING THE MAIN REMOTE CONTROLLER AND SUB-REMOTE CONTROLLER A built-in wireless receiver is provided with the MPAFM-type model indoor unit. Therefore, choose which one of the two indoor units is to function as the main remote control when being operated by the wired remote. If the main remote control is not indicated, an alarm will sound and the unit will not function. () When using the sensor of the wired remote, set the wired remote to function as the main remote and set the wireless remote control to function as the sub remote. () When using the sensor of the wireless remote, set the wireless remote to function as the main remote. () When changing the remote control address of the indoor unit, refer to section 4-. Address Setting. (4) When changing the remote control address of the wired remote, refer to the Installation Manual supplied with the remote. 8 : : Wireless remote Remote (main) (sub) <Example > MPAFM-type Wireless receiver (Remote : main) Connection wiring for group control P terminal base for remote control wiring No. 8 No. No. No. MPAFM-type Wireless receiver (Remote : sub) (earth) Wired remote (sub) Group control wiring Fig. 7- Group control using remote s It does not matter which of the remote s you set as the main. When using multiple remote s (up to can be used), one serves as the main remote and the other as the sub-remote. (Fig. 7-) MPAFM-type Terminal P No. Fig. 7- Wireless receiver (Remote : sub) Cautions on Group Control Group control within the same refrigerant tubing system is recommended. [Tubing system which is NOT recommended] Wired remote (sub) s Tubing system Group address Tubing system MPAFM-type Wireless receiver (Remote : main) Fig. 7- Group Group Group Remote Indoor Units Group Wiring System Diagram for Group Control This diagram shows when several units (maximum of 8) are controlled by a remote (main unit). In this case, the remote can be connected at any indoor unit. <Example > In the MULTISET system, group control extending over tubing systems becomes impossible to set, which means the indoor units cannot operate. While Group 4 is in heating operation, if later Group begins cooling operation, indoor units, of Group can be operated, but the indoor units -6 of Group 4 cannot operate. Wiring procedure Wire according to the diagram (Fig. 7-). Each successive unit will respond at -second intervals following the order of the group address when the remote is operated. 9 MPAFM-type MPAFM-type Wireless receiver (Remote : sub) Wireless receiver (Remote : main) Wired remote (main) Wireless remote Remote control wiring Multiple remote control Standard remote control Group control Connection wiring for group control No. 8 No. No. Inter-unit control wiring 0

12 7-4. Meaning of Alarm Messages Table of Self-Diagnostics Functions and Description of Alarm Displays Alarm messages are indicated by the blinking of LED and (D7, D75) on the outdoor unit PCB. They are also displayed on the wired remote. Viewing the LED and (D7 and D75) alarm displays LED LED Alarm contents Alarm display Alternating LED blinks M times, then LED blinks N times. The cycle then repeats. M = : P alarm : H alarm 4: E alarm 5: F alarm 6: L alarm N = Alarm No. Example: LED blinks times, then LED blinks 7 times. The cycle then repeats. Alarm is "P7." ( : Blinking) Possible cause of malfunction Alarm message Remote is detecting Error in receiving serial communication signal. error signal from indoor unit. (Signal from main indoor unit in case of group control) <E0> Ex: Auto address is not completed. Error in transmitting serial communication signal. <E0> is detecting error signal from remote (and system ). <<E0>> Serial communication errors Mis-setting Error in receiving serial communication signal. When turning on the power supply, the number of connected indoor units does not correspond to the number set. (Except R.C. address E04 is 0. ) Error of the main outdoor unit in receiving serial communication signal from the indoor unit. <E06> address setting is duplicated. E08 Remote address connector (RCU. ADR) is duplicated. (Duplication of main remote ) <<E09>> is detecting error signal from main outdoor unit. Improper setting of indoor unit or remote. Starting auto address setting is prohibited. This alarm message shows that the auto address connector CN00 E is shorted while other RC line is executing auto address operation. Error in auto address setting. (Number of connected indoor units is less than the number set) E5 Error in auto address setting. (Number of connected indoor units is more than the number set) E6 No indoor unit is connected during auto address setting. E0 Main outdoor unit is detecting error signal from sub outdoor unit. E4 Error of outdoor unit address setting. E5 The number of connected main and sub outdoor units do not correspond to the number set at main outdoor unit PCB. E6 Error of sub outdoor unit in receiving serial communication signal from main outdoor unit. E9 During auto address setting, number of connected units does not correspond to number set. When turning on the power supply, number of connected units does not correspond to number set. (Except R.C. address is 0. ) E8 Improper setting. This alarm message shows when the indoor unit for multiple-use is not connected to the outdoor unit. L0 Duplication of main indoor unit address setting in group control. <L0> Duplication of outdoor R.C. address setting. L04 There are or more indoor units Priority set remote L05 s which have operation mode priority in refrigerant circuit. Non-priority set remote L06 Group control wiring is connected to individual control indoor unit. L07 address is not set. L08 Capacity code of indoor unit is not set. <<L09>> Capacity code of outdoor unit is not set. L0 Mis-matched connection of outdoor units which have different kinds of refrigerant. L7 4-way valve operation failure L8 Error of main indoor unit in receiving serial communication signal from sub indoor units. communication error of group control wiring. Thermal protector in indoor unit fan motor is activated. <<P0>> Improper wiring connections of ceiling panel. <<P09>> Float switch is activated. <<P0>> Continued Protective device in indoor unit is activated. Activation of protective device GB List of Alarm Messages on the Remote Controller Display LED Display of Wireless Remote Controller OFF ON Alarm Messages are shown in brackets [ ]. Blinking (0.5 sec.) Standby Operation Timer Blinking mode for heating Serial communication error on remote [E0 - E0, E08 - E4, E7, E8] Serial communication error of indoor/outdoor control wiring or outdoor unit s sub-bus [E04 - E07, E5, E6, E9 - E] Operation of indoor unit s protective device [P0, P09 - P4] Alternating Operation of outdoor unit s protective device [P0 - P08, P5 - P] Alternating Thermistor error on indoor unit [F0 - F0, F0 - F] Alternating Thermistor error on outdoor unit [F04 - F09, F - F8] Alternating EEPROM error on indoor unit [F9] Simultaneous EEPROM error on outdoor unit [F0, F] Simultaneous Compressor error [H0 - H] Engine error [A0 - A] Simultaneous Absorption circuit error [J0 - J] Simultaneous Setting error on indoor unit [L0 - L0, L05 - L09] Simultaneous Setting error on outdoor unit [L04, L0 - L] Simultaneous Alternating Cooling & heating mismatch [Automatic control setting for automatic cooling and heating models] Oil alarm [equivalent to actuation of outdoor unit s protective device] Alternating Test run Simultaneous Note: Blinking time should be 0.5 second ON and 0.5 second OFF. 0