OPERATION MANUAL DAIKIN INTEGRATED SYSTEM for REFRIGERATORS, FREEZERS AND AIR CONDITIONING. ZEAS-AC Outdoor unit (LRYCP14DY1) Booster unit (LCBKP1AR) Inverter box (BRR2A1R) Our many thanks for your purchasing Daikin's airconditioner. This operation manual describes those matters to be noted about the safety. Please do not fail to read this manual carefully before starting use in order for you to use the air conditioner properly. After reading, keep this manual at a place where any user can read at any time. Furthermore, make certain that this operation manual is handed to a new user when he takes over the operation. For the indoor unit (air conditioner), refer to this operation manual together with the operation manual attached to the indoor unit. The operation Manual attached to the indoor unit (air conditioner) should be retained carefully with this operation manual. Before starting use Important information regarding the refrigerant used 1 Safety considerations Be sure to follow the instructions 1 Name of each individual part 5 System structure 6 Name and function of remote controller 7 About operation Operation procedure Cooling, heating, automatic, and fan operation 9 Program dry operation 11 Adjusting the air flow direction 12 Program timer operation 13 Simultaneous operation of several indoor units 15 How to use at best condition 15 Maintenance How to maintain 16 Trouble shooting When something is wrong 17 About inspection 23 Type and specification of the products 23 After-sales Service & Warranty 24 Trouble shooting Maintenance About operation Before starting use A clever use of the unit can contribute to better energy saving.
Important information regarding the refrigerant used This product contains fluorinated greenhouse gases covered by the Kyoto Protocol. Refrigerant type : R407C GWP (1) value : 1652.5 (1) GWP = global warming potential Periodical inspections for refrigerant leaks may be required depending on European or local legislation. Please contact your local dealer for more information. SAFETY CONSIDERATIONS Be sure to follow the instructions. We recommend that you read this instruction manual carefully before use to gain full advantage of the function of the air conditioner, and to avoid malfunction due to mishandling. The precautions described below are WARNING and CAUTION. These are very important precautions concerning safety. Be sure to observe all of them without fail. WARNING CAUTION These are the matters with possibilities leading to serious consequences such as death or serious injury due to erroneous handling. These are the matters with possibilities leading to injury or material damage due to erroneous handling including probabilities leading to serious consequences in some cases. Avoid exposure of your body directly to the cold air for a long time, or avoid excessive exposure of your body to the cold air. Otherwise, your physical condition may be deteriorated and/or your health may be ruined. WARNING Precaution for operation Do not insert your finger, a stick, etc., into the air inlet, outlet, and fan blades. A fan in high-speed running may result in injury. Avoid disassembly, remodeling, and repair. Otherwise, it may result in a water leakage, electric shock, and fire. Contact your DAIKIN dealer. Never get in contact with fire, if the refrigerant should ever leak. The refrigerant used for the air conditioners is safe. Though the refrigerant does not leak under the normal condition, if it should ever leak into the room and get in contact with fire such as heaters and hot plates, it would cause generation of toxic gas. After putting out fire of a burner or heater, and ventilating the air of the room, contact your DAIKIN dealer. When the refrigerant leak is repaired, operate the unit after confirminig the serviceman that the leaked places are completely repaired. Do not use any fuse with improper capacity. The use of a piece of wire and whatnot may result in a failure and fire. When the air conditioner is in abnormal conditions (smell of something burning, etc.), unplug the power cord from the outlet, and contact the dealer where you purchased the air conditioner. Continued operation under such circumstances may result in a failure, electric shock, and fire. Consult the dealer if the air conditioner submerges owing to a natural disaster, such as a flood or typhoon. Do not operate the air conditioner in that case, or otherwise a malfunction, electric shock, or fire may result. 1
CAUTION Precaution for operation Do not use the air conditioner for other purposes. Do not use the air conditioner for a special application such as the storage of foods, animals and plants, precision machines, and art objects as otherwise the deterioration of quality may result. Do not put a vessel with water on the unit. If water leaks in the unit, it may cause deterioration of the insulating material, resulting in electric shock or fire. Do not operate the air conditioner with a wet hand. An electric shock may result. Do not remove the air outlet of the outdoor unit. The fan may get exposed and result in injury. Do not allow a child to mount on the outdoor unit or avoid placing any object on it. Falling or tumbling may result in injury. No washing in water is allowed for the outdoor unit, indoor unit, booster unit and inverter box. An electric shock may result. Before starting use Do not put any wet articles under the indoor unit. Condensed water may drop when the humidity is 80% or more, or the drain outlet has been choked. Do not touch the air inlet and aluminum fin of the indoor & outdoor units. There are cases of some injury being inflicted upon you. Neither place a flammable spray bottle near the air conditioner nor perform spraying. Doing so may result in a fire. The appliance is not intended for use by young children or infirm persons without supervision. Do not expose animals and plants directly to the wind. Adverse influence to animals and plants may result. Young children should be supervised to ensure that they do not play with the appliance. Do not place a burner or heater at a place directly exposed to the wind from the air conditioner. Incomplete combustion of the burner or heater may result. Never touch the internal parts of the remote controller. Do not remove the front panel. Some parts inside are dangerous to touch, and a machine trouble may happen. For checking and adjusting the internal parts, contact your dealer. 2
CAUTION Precaution for operation Do not wipe the surface of the remote controller operation panel, using benzine, thinner and chemical dusters, etc. Discoloration may occur and the paint may peel away. Remove stains with a waste cloth moistened in neutral detergent diluted with water and squeezed fully, then get it finished, using a dry cloth. For indoor unit internal cleaning, contact your dealer. Cleaning by a wrong method may damage the resin part, which may result in water leakage or other faults and electric shocks. When the air conditioner is used in combination with burners or heaters, perform sufficient ventilation. Insufficient ventilation may result in an oxygen deficiency accident. Check and make sure that foundation blocks are not damaged after a long use. If they are left in a damaged condition, the unit may fall and result in injury. To clean the air conditioner, stop operation, and unplug the power cord from the outlet. Otherwise, an electric shock and injury may result. Do not place objects in direct proximity of the outdoor unit and do not let leaves and other debris accumulate around the unit. Leaves are a hotbed for small animals which can enter the unit. Once in the unit, such animals can cause malfunctions, smoke or fire when making contact with electrical parts. Since this unit is of an air conditioning & refrigerating integrated system, the fan may rotate even when the operation is being stopped with the remote controller during heating operation. In case where the suction grille is removed due to air filter cleaning or the like, be sure to follow the procedure described below: ➀Set the remote controller to the fan mode or cooling mode, and stop operation with the remote controller. ➁Turn the indoor unit (air conditioner) power switch OFF. ➂According to the Indoor Unit Instruction Manual, start cleaning. Stop in the fan mode & cooling modes ➀Operation stop ➁Turn the power OFF. ➂Open the grille after fan stop. In the case of an automatic (up/down) grille, it is not necessary to turn the power switch OFF since the ( grille comes down automatically, but it should be noted that there are cases of the fan turning by inertia. ) 3 Do not conduct installation works by yourself. Incomplete installation performed by yourself may result in a water leakage, electric shock, and fire. Ask your dealer for installation of the air conditioner. WARNING Precaution for installation Do not attach any optional accessory by yourself. Be sure to use the separately sold component parts designated by our company. Incomplete installation performed by yourself may result in a water leakage, electric shock, and fire. For installation of separately sold component parts, ask a specialist.
Do not move and re-install the machine by yourself. Incomplete installation may result in a water leakage, electric shock, and fire. Ask your dealer for move and reinstall the air conditioner. Be sure to establish an earth. Do not earth the unit to a utility pipe, arrester, or telephone earth. Incomplete earth may cause electrical shock, or fire. A high surge current from lightning or other sources may cause damage to the air conditioner. Be sure to use exclusive circuit for power. Not specification power may result electric shock, generation of heat and fire. Avoid placing the remote controller in a spot splashed with water. Water coming inside the machine may cause an electric leak or may damage the internal electronic parts. WARNING Precaution for installation For refrigerant leakage, consult your dealer. If the refrigerant leaks exceeding the level of limiting concentration, an oxygen deficiency accident may happen. When the air conditioner is to be installed in a small room, it is necessary to take proper measures so that the amount of any leaked refrigerant does not exceed the limiting concentration even when it leaks. Be sure to install an earth leakage breaker. Failure to install an earth leakage breaker may result in electric shocks, or fire. CAUTION Precaution for installation Do not install the air conditioner at any place Execute complete drain piping for where flammable gas may leak out. perfect drainage. If the gas leaks out and stays around the air Incomplete piping may result in a water conditioner, a fire may break out. leakage. Before starting use About the location to install: Has the unit been installed at a place with good ventilation and no obstacle? Do not use the unit at any of the following locations: a. where mist of such mineral oil as machining oil, etc. is enveloping b. where thick salty mist is enveloping such as seaside area c. where sulfuric gas is enveloping such as hot spring area d. where frequent voltage variation is expected such as factories e. installation on a vehicle or vessel f. where large spray of oil or steam is expected such as a kitchen g. where a machine that generates electromagnetic wave is installed h. where acid or alkali steam is enveloping Install a TV set, radio and personal computer, etc. always at least 1.5 m apart from the outdoor unit, indoor unit, remote controller, inverter box, booster unit, power supply wires, control wiring and piping; otherwise the image may fall into disorder and these units may be impaired by noises. Has a proper countermeasure against snow been prepared? Please consult with your dealer for details. About electric work: Electrical works must be installed by a licensed electrician and must comply with relevant local and national regulations. Consult with your dealer and do not carry out any electric work by yourself. Has a circuit dedicated only for the integrated system for refrigerators, freezers and air conditioning been used? Please pay attention to the operation noise also. Has a location as follows been selected for installation? a. where sufficient load of the integrated system for refrigerators, freezers and air conditioning is secured and the operation noise and vibration do not expand b. where the heated air from the air outlet of the outdoor unit and operation noise do not give any trouble to the neighborhood Is there any obstacle around the air outlet inlet of the inverter box and outdoor unit? If there is, it may cause the functional deterioration or expansion of operation noise. Consult with your dealer should any abnormal sound be heard when using the unit. About draining of the drain piping: Has the drain piping been carried out so that the water can be drained without any trouble? If no water is being drained from the outdoor drain piping during cooling operation of the unit, the drain piping may be choked by dust, etc. which may invite water leakage from the booster unit and indoor unit. Stop operation immediately and consult with your dealer. Drain off the outdoor unit securely. Provide a drainage ditch and drain pan or the like around the foundation so that no water stays therearound in particular for easier draining. 4
Name of each individual part OUTDOOR UNIT LRYCP14DY1 AIR OUTLET FAN CONTROL BOX (LEFT) CONTROL BOX (RIGHT) HIGH VOLTAGE WIRING POWER SUPPLY WIRING CIRCUIT BREAKER FOR POWER SUPPLY WIRING THE WIRING AMONG THE UNITS TO THE CONTROL BOARD, ALARM BOARD LOW VOLTAGE WIRING THE WIRING AMONG THE UNITS TO THE AIR CONDITIONER, INVERTER BOX AIR INLET HEAT EXCHANGER (ALUMINIUM FIN) HEAT EXCHANGER REFRIGERANT PIPING REFRIGERATION AND FREEZING REFRIGERANT (AIR CONDITIONER SIDE) GROUNDING WIRE Conducts electricity from the unit into the ground to prevent electric shock. MANUFACTURER, S LABEL BOOSTER UNIT LCBKP1AR (Special order model) REFRIGERANT PIPING HIGH VOLTAGE WIRING (TO THE INVERTER BOX) DRAIN OUTLET DRAIN PIPE GROUNDING WIRE (TO THE INVERTER BOX) 5
INVERTER BOX BRR2A1R (Special order model) AIR OUTLET LOW BOLTAGE WIRING THE WIRING AMONG THE UNITS Outdoor unit, Control board HIGH VOLTAGE WIRING COMPRESSOR WIRING, HIGH PRESSURE SWITCH WIRING, EARTH WIRING (TO THE BOOSTER UNIT) GROUNDING WIRE HIGH VOLTAGE WIRING AIR INTLET POWER SUPPLY WIRING (CIRCUIT BREAKER FOR POWER SUPPLY WIRING) THE WIRING AMONG THE UNITS (TO THE ALARM BOARD, FREEZER SHOWCASE CABINET) Conducts electricity from the inverter box into the ground to prevent electric shock. Before starting use System structure The system structure of Convenience Pack ZEAS-AC is as follows. NAME OUTDOOR UNIT BOOSTER UNIT BOOSTER INVERTER UNIT BOX INDOOR UNIT REFRIGERATOR Freezer showcase UNIT COOLER Showcase CABINET AIR CONDITIONER SHAPE NAME DEFROST CONTROL BOARD SHOWCASE INTERFACE REMOTE ST CONTROLLER CONTROLLER FOR AIR CONDITIONER SHAPE 6
Name and function of remote controller The equipped functions vary according to the indoor unit (Air conditioner) models. When the button of a function not equipped (the button not mentioned in this manual) is operated, the display indicates NOT AVAILABLE. For details of the functions (button) confirm your Daikin dealer. There are 3 kinds of remote controllers according to the difference of remote controller display and operation. The operating method is the same to all the models. (This manual gives explanation by BRC1C61.) Before operating the remote controller, make sure to check the type of the remote controller. BRC1C61 DEFROST/HOT START DISPLAY see page 10 AIR FLOW FLAP DISPLAY see page 12 OPERATION MODE DISPLAY It indicates the operation mode. THERMOSTAT SENSOR IN REMOTE CONTROLLER Senses the room temperature around the remote controller. ON/OFF BUTTON Press the button and the system will start. Press the button again and the system will stop. OPERATION LAMP (RED) The lamp lights up during operation. CLEANING DISPLAY The display lights up when the optional built-in Air Purifier is connected. VENTILATION DISPLAY This display shows that Heat Reclaim Ventilation in operation. PROGRAMMED TIME DISPLAY This display shows the programmed time of the system start or stop. INSPECTION/TEST OPERATION DISPLAY When the inspection/test operation button is pressed, the display shows the mode in which the system actually is. Do not normally use this switch. TEST hr hr C NOT AVAILABLE L H SET TEMPERATURE DISPLAY This display shows the temperature you have set. TEST 7 DISPLAY When the total heat exchanger unit([heat Reclaim Ventilation],etc.) is connected, these buttons are used. For details, refer to the operetion manual of the total heat exchanger unit. For explanatory purpose, the above drawing shows all displays. When the unit is in actual operation the display is not as same as this.
CHANGEOVER UNDER CONTROL DISPLAY It is impossible to changeover Heat, Cool with the remote controller when this icon is displayed. UNDER CENTRALIZED CONTROL DISPLAY When this display shows, the system is under centralized control. FAN SPEED DISPLAY This display shows the fan speed you have selected. DISPLAY OF NO FUNCTION Even if the button for a certain function is pressed, the display may indicate NOT AVAILABLE for several seconds. if the indoor unit (Air conditioner) does not have that function. In case of simultaneous operation of multiple units The display of NOT AVAILABLE is indicated only when all indoor units (Air conditioner) do not have that function. If there is a unit which has that function, the display is not indicated. TIME TO CLEAN AIR FILTER DISPLAY Refer to the indoor unit (Air conditioner) manual. NOTES To avoid malfunction, do not pull or twist the remote controller lead wires. To avoid damage and malfunction, do not press the remote controller button with a pointed article. In attaching a remote controller, avoid a place exposed to direct sunlight. The liquid crystal display unit may be discolored, ceasing to display any data or the like. TIMER MODE START/STOP BUTTON see pages 13,14 TIMER ON/OFF BUTTON see pages 13,14 AIR FLOW DIRECTION ADJUST BUTTON see page 12 FAN SPEED CONTROL BUTTON Press this button to select the fan speed of your preference. OPERATION MODE SELECTOR BUTTON Press this button to select the operation mode of your preference. Before starting use TEST INSPECTION/TEST OPERATION BUTTON FILTER SIGN RESET BUTTON This button is only used by qualified Refer to the indoor unit manual. service persons for maintenance purposes. TEMPERATURE SETTING BUTTON Don't use for normal operation. Use this button for setting the desired temperature. PROGRAMMING TIME BUTTON Use this button for programming start and/or stop time. see pages 13,14 see page 10 OPERATION PANEL The above drawing shows the display when the lid is open. 8
OPERATION PROCEDURE COOLING, HEATING, AUTOMATIC, AND FAN OPERATION OPERATION LAMP SET UP Turn on the main power switch. TEST C TEMPER- ATURE H AIR FLOW DIRECTION 2 1 FAN SPEED Press OPERATION MODE SELECTOR button several 1 times and select the OPERATION MODE of your choice as follows. COOLING OPERATION HEATING OPERATION AUTOMATIC OPERATION FAN OPERATION In Automatic operation mode, cool/heat changeover is automatically conducted. 2 Press ON/OFF button. OPERATION lamp(red) lights up and the system starts OPERATION. The above display shows "COOLING ( )" mode. SETTING THE MASTER REMOTE CONTROLLER When the system is installed two remote controller for each indoor unit, it is necessary to designate one of the remote controllers as the master remote controller. Only the master remote controller can select heating, cooling or automatic operation. The displays of slave remote controllers show (changeover under control) and they automatically follow the operation mode directed by the master remote controller. However, it is possible to changeover to program dry with slave remote controllers if the system is in cooling operation set by the master remote controller. see page 10 EXPLANATION OF HEATING OPERATION ABOUT STARTING OPERATION For heating operation, normally, some longer time is required than in cooling operation before the set temperature is reached. Pre-operation start taking advantage of timer operation is recommendable. 9 REGARDING OUTSIDE AIR TEMPERATURE AND HEATING CAPACITY The heating capacity of the air conditioner declines as the outside air temperature falls. In such a case, use the air conditioner in combination with other heating systems. Precautions taken when using this unit jointly with a burning appliance When this unit is used jointly with other burning appliances, meticulous and scrupulous ventilation is required for this purpose. Unsatisfactory ventilation may result in oxygen deficiency. Avoid using a burning appliance where it is exposed to direct indoor unit air; otherwise such direct air may cause incomplete combustion of the burning appliance. A warm air circulating system is employed, and therefore it takes some time until the entire room is warmed up after the start of operation. The indoor fan is operating automatically in the gentle air mode before the air conditioner internal temperature is increased to some extent. When the warm air stays under the ceiling and your feet are cold, we recommend that you use a circulator (a fan to circulate the air inside the room). For details, consult your dealer.
TEMPERATURE, FAN SPEED, AIR FLOW DIRECTION TEMPERATURE Press TEMPERATURE SETTING ( ) button and program the setting temperature. [ ] Each time this button is pressed, setting temperature rises 1 C. [ ] Each time this button is pressed, setting temperature lowers 1 C. OPERATION RANGE Outdoor temperature Cooling 5~43 C Indoor temperature 21~32 C Indoor humidity 80% or below The setting is impossible for fan operation. Heating 15~21 C 15~27 C FAN SPEED Press FAN SPEED CONTROL ( ) button. High( ), and Low( ), fan speed can be selected. Fan speed may be automatically changed in response to the room temperature. Sometimes the fan may stop but it is not a malfunction. Sometimes it may take time to finish changing fan speed, but it is not a malfunction. AIR FLOW DIRECTION STOP Press AIR FLOW DIRECTION ( ) button. see page 12 Press ON/OFF ( ) button once again. OPERATION lamp goes off, and the system stops OPERATION. Depending on the situation, the fan operation may continue for one minute after the heating operation is stopped. If the temperature or the humidity is beyond the following conditions, safety devices may work and the air conditioner may not operate, or sometimes, water may drop from the indoor unit. NOTES To avoid water leakage and malfuction ; Do not turn off the power supply immediately after the operation is stopped. Make sure to wait for 5 minutes or more. How to designate the master remote controller 1. Press the operation mode selector button of the current master remote controller for 4 seconds. The display showing (changeover under control) of all slave remote controllers connected to the same outdoor unit flash. 2. Press the operation mode selector button of the controller that you wish to designate as the master remote controller. Then designation is completed. This remote controller is designated as the master remote controller and the display showing (changeover under control) vanishes. The displays of other remote controllers show (changeover under control). About operation EXPLANATION OF HEATING OPERATION In order to prevent heating capacity from reducing or cool air from discharging, the following operations are done. DEFROST OPERATION HOT START As the frost on the coil of an outdoor unit increases, heating effect decreases and the system goes into DEFROST OPERATION. The indoor unit fan stops and the remote controller display shows " ". After 6 to 8 minutes (maximum 10 minutes) of DEFROST OPERATION, the system returns to HEATING OPERATION. The system stops FAN to prevent FAN off cold air at the beginning of heating operation. At that time, the remote controller indicates DEFROST/HOT START " ". After 6 to 8 minutes (maximum 10 minutes) of DEFROST OPERATION, the system returns to HEATING OPERATION. 10
PROGRAM DRY OPERATION OPERATION LAMP 2 SET UP 1 Turn on the main power switch. Press OPERATION MODE SELECTOR ( ) button several times and select PROGRAM DRY ( ) the OPERATION MODE of your choice as follows. TEST AIR FLOW DIRECTION 1 2 Press ON/OFF ( ) button. OPERATION lamp(red) lights up and the system starts OPERATION. TO CHANGE THE AIR FLOW DIRECTION AIR FLOW DIRECTION Press AIR FLOW DIRECTION ( ) button. see page 12 STOP Press ON/OFF ( ) button again. OPERATION lamp goes off, and the system stops OPERATION. OPERATION MODE AND ITS FUNCTIONS Program Dry This operation mode removes humidity without lowering the room temperature. The microcomputer automatically sets the temperature and the fan speed. Then, it repeats Operation and Stop. Program Dry Operation Since the microcomputer controls the temperature and the fan speed, you can not set them with the remote controller. The unit will not run when the room temperature under 20 C. 11
ADJUSTING THE AIR FLOW DIRECTION Press the AIR FLOW DIRECTION ADJUST ( ) button to select the air direction as shown below. Press AIR FLOW DIRECTION ADJUST button to select the air direction of your choice. C H The AIR FLOW FLAP The AIR FLOW FLAP display stops swinging display swings as shown and the air flow direction below and the air flow is fixed. direction continuously varies. (Fixed air flow direction (Automatic swing setting) setting) TEST 1 2 For automatic air flow direction change 1 Press the AIR FLOW DIRECTION ADJUST ( ) button and change the display to AIR FLOW SWING. The display will automatically start moving. For fixing the air flow direction 2 When the moves to the position you desire, press the AIR FLOW DIRECTION ADJUST ( ) button. The air flow direction will be fixed. NOTES Avoid horizontal air flow setting, which may cause dew condensation or dust adhesion on the ceiling. About operation OPERATION MODE AND ITS FUNCTIONS Air flow control operation includes the following two modes. Air flow swing The unit automatically moves the air flow adjusting blades. Air flow direction Airflow can be fixed at Swing automatically your desired direction. Desired direction Indoor Unit Swing automatically Indoor Unit Desired direction The range of fixing position of the air flow adjusting blades can be changed depending on the models of the indoor unit. Consult your dealer for details. MOVEMENT OF THE AIR FLOW FLAP For the following conditions, micro computer controls the air flow direction so it may be different from the display. Operation mode Cooling Heating Operation conditions When room temperature is lower than the set When room temperature is higher than the set temperature temperature At defrost operation When operating continuously at horizontal or vertical air flow direction 12
PROGRAM TIMER OPERATION 1 3 TEST hr C 2 H 1 2 Press the TIMER MODE START/STOP button several times and select the mode on the display. The display flashes For setting the timer stop ( ) ( ) For setting the timer start ( ) Press the PROGRAMMING TIME ( ) button and set the time for stopping or starting the system. [ ] When this button is pressed, the time advances by 1 hour. [ ] When this button is pressed, the time goes backward by 1 hour. The timer can be programmed a maximum of 72 hours. The above display indicates " after 8 hours cut off ". 3 Press the TIMER ON/OFF ( ) button. The timer setting procedure ends. The display o changes from flashing light to a constant light. After the timer is programmed, the display shows the remaining time. To cancel program timer CANCEL Press the TIMER ON/OFF ( ) button once again to cancel programming. The display vanishes. OPERATION MODE AND ITS FUNCTIONS When you want to stop the system after operating it for a time you desire After hours CUT OFF Example If you adjust the time to It indicates "after 8 hours cut off " After 8 hours from making a reservation, the operation stops. After the operation stops, the reservation is cancelled. When you want to start the system after a time you desire elapses After hours TURN ON Example If you adjust the time to It indicates after 8 hours turn on " After 8 hours from making a reservation, the operation starts. After the operation starts, the reservation is cancelled. 13
When you want to make a reservation of AFTER HOURS CUT OFF ( ) and AFTER HOURS TURN ON ( ) simultaneously Operate the controller referring to the following example. Example ➀ Stop the system after 3 hours and then start the system after one hour. hr Set to after 3 hours CUT OFF and after 1 hour TURN ON. ➀ ➁ Press the button TIMER SETTING ON/OFF. Select AFTER HOURS CUT OFF ( ). Press the button TIME OF TIMER ( ). Set the time to 3. ( ) ➁ ➂ hr ➂ ➃ ➄ ➅ Press the button RESERVE/ CANCEL ( ). AFTER 3 HOURS CUT OFF ( ) will be set. Next, press the button TIMER SETTING ON/ OFF. Select AFTER HOURS TURN ON ( ). Press the button TIME OF TIMER ( ). Set the time to 4. Press the button RESERVE/ CANCEL ( ). hr AFTER 4 HOURS TURN ON ( ) will be set. This completes the simultaneous reservation. ( ) ➃ ➄ ➅ hr hr About operation When AFTER HOURS CUT OFF ( ) and AFTER HOURS TURN ON ( ) are reserved simultaneously, As soon as the reservation is completed, it starts counting the remaining time. Example "After 3 hours CUT OFF" "After 4 hours TURN ON" Reserved After 3 hours, the operation stops. After 1 hour from the stop, the operation starts. The reservation is cancelled after the start of operation. hr hr hr hr 14
SIMULTANEOUS OPERATION OF SEVERAL INDOOR UNITS Group control system One remote controller controls up to 2 indoor units. All indoor units are equally set. Two remote controller control system Two remote controllers control one indoor unit (In case of group control system, one group of indoor units) The unit is individually operated. NOTES Regarding combinations or setting of group control and two-remote controller operation, be sure to check with your dealer. Contact your Daikin dealer in case of changing the combination or setting of group control and two remote controller control systems. HOW TO USE AT BEST CONDITION The machine should not be exposed to direct sunlight during cooling operation. Hang a curtain or a window shade on the window. Carry out frequent cleaning of the airfilter. If you continue to use the unit with dirty air-filter, deterioration of capacity or trouble may be invited. Refer to this operation manual together with the operation manual attached to the indoor unit. Do not leave the door or window open. Opearational efficiency becomes poor. Keep a TV, radio, personal computer, etc. 1.5 m or more apart from the indoor unit and remote controller. Otherwise the screen may flutter or flicker, and noises may intrude into the unit. Do not put anything nearby the air outlet and air inlet. Otherwise the capacity may deteriorate or the operation may stop. Use the air direction control cleverly. Cold air will stay in the lower part, while warm air will stay in the upper part. With the air direction control made level in the cooling & dry mode and turned downward in the heating mode, make arrangements so that your body is not exposed to such air. Be sure that the room is not made too cool and too warm. Otherwise electricity is to be wasted. Set the air conditioner to 26 to 28 C in the cooling mode. Set the air conditioner to 18 to 23 C in the heating mode. Use the timer operation mode effectively. It takes some time for the room temperature to reach the set temperature. By taking advantage of this operation with the timer, start air conditioning operation in advance. 15
HOW TO MAINTAIN Do not wash the outdoor unit, indoor unit, booster unit and inverter box, using water. Electric shocks and fire may result. During air filter cleaning, exercise due care to the scaffolding. Since this work is to be conducted in an elevated place, take special care in case where the scaffolding is unstable. Since the system is such that the air conditioning and refrigerating functions are assembled into one unit, the fan may turn even if the operation is being suspended with the remote controller during heating operation. When detaching the suction grille for air filter cleaning, etc., be sure to do this according to the procedure described below. ➀Set the remote controller to the fan mode or cooling mode, and stop operation with the remote controller. ➁Turn the indoor unit (air conditioner) power switch OFF. ➂According to the Indoor Unit Instruction Manual, start cleaning. Stop in the fan mode & cooling modes CAUTION To clean the air conditioner, stop operation, and unplug the power cord from the outlet. Otherwise, an elctric shock and injury may result. ➀Operation stop ➁Turn the power OFF. ➂Open the grille after fan stop. In the case of an automatic (up/down) grille, it is not necessary to turn the power switch OFF since the grille comes down automatically, but it should be noted that there are cases of the fan turning by inertia. ( ) Fin Corrosion Prevention & Cleaning or Scrubbing The fin will corrode and scales will adhere, depending on the peripheral environment. You are, therefore, requested to ask the dealer to take proper action; for example, periodical fin cleaning. Maintenance 16
WHEN SOMETHING IS WRONG The following symptoms do not indicate air conditioner malfunction 17 The system does not operate. The unit is stopping, but warm air comes out. During operation stop, the indoor fan may rotate. The unit stops operation from time to time. Although FAN only operation is performed, cooling/heating operation cannot be started. The air flow rate is not as preset. The air direction is not as preset. White mist comes out of a unit. Symptoms The system does not restart immediately after the ON/OFF button is pressed. The system does not restart immediately when TEMPERATURE SETTING button is returned to the former position after pushing the button. The system does not start when the display shows (UNDER CENTRALIZED CONTROL) and it flashes for few seconds after pressing an operation button. The system does not start immediately after the power supply is turned on. During heating stop, the fan rotates, and warm air is felt. The fan rotates even when the operation is stopped with the remote controller. With U4 U5 displayed on the remote controller, the unit stops, but it resumes operation in a few minutes. Immediately after turning the power on. Even when the fan speed control button is depressed, the gentle air mode operation is maintained, and the air flow rate remains unchanged. The air direction differs from that displayed on the remote controller. No blade swinging is possible. <Indoor unit> When humidity is high during cooling operation (In oily or dusty places) <Indoor unit> Immediately after cooling operation stop when the room temperature and humidity are low Causes If the OPERATION lamp lights, the system is in normal condition. It does not restart immediately because a safety device operates to prevent overload of the system. After 5 minutes, the system will turn on again automatically. This is because the system is under centralized control. Flashes on the display indicates that the system cannot be controlled by the remote controller. Wait two minutes until the micro computer is prepared for operation. Since this system is such that it is operated with the air conditioning and refrigerating functions assembled into one body, a small amount of refrigerant is flowing into the air conditioner when the showcase is in operation. This is because oil and refrigerant are prevented from staying inside the air conditioner when the showcase is being operated since this system is such that it is operated with both air conditioning and refrigerating functions assembled into one body. Since electric noises produced from other equipment than the air conditioner interrupt communication between the units, the unit stops operation. If these electric noises subside, operation is restarted automatically. The micro computer is preparing for starting operation. Wait about 10 minutes. When the room temperature has reached the set temperature during heating, the indoor unit (air conditioner) enters the gentle air operation state. This is because provision is made not to expose the human body to direct cold air. Also, even if the fan speed mode is selected when other indoor units (air conditioner) are performing heating operation, gentle air operation is to be carried out. This is because the air direction is controlled automatically. see page 12 If the inside of an indoor unit is extremely contaminated, the temperature distribution inside a room becomes uneven. This is caused by the fact that hot gas (refrigerant) flows into the indoor unit and it generates steam.
White mist comes out of a unit. Noise of air Conditioners Symptoms <Indoor unit, Outdoor unit (Air conditioners)> When the system is changed over to HEATING OPERATION after DEFROST OPERATION. <Indoor unit (Air conditioner)> The noise Zeeen which is generated immediately after the power supply is turned on. <Indoor unit/outdoor unit, Booster unit> A continuous flow Shuh sound is heard when the systems is in COOLING or DEFROST OPERATION. <Indoor unit, Outdoor unit, Booster unit> A Shuh sound which is heard at the start or immediately after the stop of operation or which is heard at the start or immediately after the stop of DEFROST OPERATION. <Indoor unit (Air conditioner)> A continuous low Shah sound is heard when the system is in COOLING OPERATION or at a stop. <Indoor unit (Air conditioner)> A Pishi-pishi squeaking sound is heard when the system is in HEATING OPERATION or after the stop of operation. <Indoor unit> Faint sound produced while the unit is stopping, such as Saa and Choro-choro Causes Moisture generated by DEFROST OPERATION becomes steam and exists. This is a sound generated when the electronic expansion valve ( 2) of the indoor unit (Air conditioner) is working. The sound will be reduced in about a minute. This is a sound generated when the gas (refrigerant) is being flowed into each indoor unit and outdoor booster unit. This is the noise of refrigerant caused by flow stop and flow change. The noise is heard when the drain outlet device is in operation. Expansion and contraction of plastic parts caused by temperature change makes this noise. Since this system is such that several units are operated, noises are generated when other indoor units are in operation. This sound is for preventing oil and refrigerant from getting stagnant. Dust from the units. The units give off odors. No outdoor fan turns. The liquid crystal of the remote controller shows. The compressor of the outdoor unit does not stop. No favorable cooling is achieved. <Outdoor and Booster unit> The tone of the operation noise changes. Dust may blow out from the unit after starting operation from long resting time. During operation. During operation, there arises temporary stoppage. It happens immediately after the main power supply switch is turned on. When the unit has been stopped after heating operation for a short time. The unit is in microcomputer-controlled dry operation. This is because the compressor changes the frequency. Dust absorbed by the indoor unit blows out. This is because the smell of outdoor unit or cigarettes odor stuck to inner part of the indoor unit is being blown out. ( 1) This is because the fan revolution speed is controlled in order to place the product operation in the optimum state. This shows that the remote controller is in normal condition. It appears for about one minute at longest. This is for preventing the oil or refrigerant from staying. It stops in about 5 to 10 minutes. Microcomputer-controlled dry operation is carried out to perform operation such that the room temperature is not decreased as much as possible. see page 11 Trouble shooting 1. Cleaning of the inner part of the indoor unit is necessary. As special technique is required for such cleaning, please consult with your dealer. 2. This is a valve to regulate the flow rate of gas (refrigerant) flowing in the indoor unit (air conditioner). 18
If the system does not properly operate except for the above mentioned case, and none of the above mentioned malfunctions is evident, investigate the system according to the following procedures. Symptoms Causes Remedy If the system does not operate at all. Check if the fuse has blown. Check to see if no breaker is OFF. Cut off the power. Turn the power ON when the breaker handle is set at OFF position. In case where the breaker handle is set at TRIP, do not turn the power switch ON. (Contact the dealer.) Handle ON TRIP Circuit breaker OFF If the system stops operating after operating the system. The system operates but it does not sufficiently cool or heat. (when cooling) (when cooling) (when cooling) Check if the breaker has worked. Check if the air inlet or outlet of outdoor or indoor unit is blocked by obstacles. Check if the air filter is clogged. Chack if the air inlet or outlet of outdoor or indoor unit is blocked with obstacles. Chack if the air filter is clogged. Check to see if no outdoor unit is enclosed. Chack if the set temperature is proper or not. Check to see if the set air flow rate is not set to LOW. Check to see if the air discharge direction is adequate. Chack if the doors or the windows are open. Chack if direct sunlight enters the room. Chack if there are too many inhabitants in the room. Chack if the heat source (office Automation) of the room is excessive. After power recovery, restart operation. Remove the obstacle and make it well-ventilated. Clean the air filter. For this cleaning, refer to the instruction manual attached to the indoor unit (air conditioner). Remove the obstacle and make it well-ventilated. Clean the air filter. For this cleaning, refer to the instruction manual attached to the indoor unit (air conditioner). Remove the enclosure. see page 10 see page 10 see page 12 Shut doors or windows to prevent wind from coming in. Use curtains or blinds. 19
Symptoms Causes Remedy Cooling efficiency is low. Unit cooler & ( cabinet ) Check to see if the indoor unit (unit cooler & showcase) is not covered with a heavy frost. Check to see if there are not too many products. Check to see if cold air in the indoor unit (unit cooler & showcase) is being circulated favorably. Check to see if no heat exchanger of outdoor unit becomes dusty. Defrost the unit manually or reduce the defrosting cycle. Reduce the number of products. Change the product layout. Remove dust with a brush or cleaner, etc. without using water or ask the dealer for this cleaning. Water leaks from the booster unit. Check to see if the temperature of indoor unit (unit cooler & showcase) is not set to too high a level. Check to see if no high-temperature products are contained. Check to see if the drain pipe is not clogged. Check to see if the drain pipe inclination is correct. Set the temperature correctly. Always store the products after cooling them down to the low temperature once. Clean the drain pipe. For this cleaning, ( ask the dealer. ) Set the drain pipe to the downward pitch. (Contact the dealer.) After checking each item described above, contact the dealer without repairing any defectives by yourself when your product is still out of order. At this time, let us know the symptom of malfunctioning and model name. (See the machine nameplate given on page 5.) After contacting the dealer, do not open the showcase door. Also, when product decay caused by temperature rise is predicted, transfer the product to another warehouse or use dry ice or the like to prevent the temperature from increasing. Trouble shooting 20
If one of the following malfunctions occurs, take the measures shown below and contact your Daikin dealer. WARNING Precaution for operation When the air conditioner is in abnormal conditions (smell of something burning, etc.), stop the operation and unplug the powercord from the outlet, and contact your dealer Continued operation under such circumstances may result in a failure, electric shock, and fire. 21 Symptoms If a safety device such as a fuse, a breaker or an earth leakage breaker frequently actuates. If the ON/OFF switch does not properly work. If water leaks from indoor (Air conditioner) unit. If the display (INSPECTION), UNIT No., and the OPERATION lamp flash and the MALFUNCTION CODE appears. OPERATION lamp UNIT No. INSPECTION display MALFUNCTION CODE C Abnormality Code Table Run Checking Unit Abnormality Lamp Indicator No Code Abnormal Contents Flashing Flashing Flashing A0 Indoor unit External protection device abnormal Flashing Flashing Flashing A1 Indoor unit Printed circuit board (PCB) EEPROM setting failure Lighting Turn-OFF Flashing A1 Indoor unit Printed circuit board faulty Flashing Flashing Flashing A3 Indoor unit Drain water level system abnormal Flashing Flashing Flashing A6 Indoor unit Fan motor locking & connector detached Lighting Turn-OFF Flashing A7 Indoor unit Air flow direction adjusting motor abnormal Flashing Flashing Flashing A9 Indoor unit Electronic expansion valve drive part abnormal Lighting Turn-OFF Flashing AF Indoor unit Abnormal drain Lighting Turn-OFF Flashing AH Indoor unit Dust collector abnormal Flashing Flashing Flashing AJ Indoor unit Capacity setting failure H INDOOR UNIT No. in which a malfunction occurs After taking the following measures, contact your Daikin dealer. Do not turn on the main power switch. Turn off the main power switch. Stop the operation. Since the operating condition is being monitored through Air Net, our serviceman will visit you urgently for repair whenever necessary. If this Air Net contract is not concluded, contact our dealer representative or distributor according to the following procedure: Referring to Abnormality Code Table described below, inform us of the remote controller display contents. If operation is restarted when the unit came to a halt due to an abnormal condition, the unit may be able to perform operation for a few hours thanks to the backup operation function, but you are always requested to contact the local sales shop in this case.
Run Checking Unit Abnormality Lamp Indicator No Code Flashing Flashing Flashing C4 Flashing Flashing Flashing C5 Flashing Flashing Flashing C9 Flashing Flashing Flashing CA Lighting Lighting Lighting CJ Lighting Turn-OFF Flashing E0 Flashing Flashing Flashing Lighting Turn-OFF Flashing Flashing Flashing Flashing Lighting Turn-OFF Flashing Lighting Turn-OFF Flashing E1 E3 E4 E5 E7 Flashing Flashing Flashing E9 Lighting Turn-OFF Flashing EJ Lighting Turn-OFF Flashing F3 Flashing Flashing Flashing H0 Lighting Turn-OFF Flashing H3 Lighting Turn-OFF Flashing H4 Lighting Turn-OFF Flashing H9 Lighting Turn-OFF Flashing J2 Lighting Turn-OFF Flashing J3 Lighting Turn-OFF Flashing J5 Lighting Turn-OFF Flashing JA Lighting Turn-OFF Flashing JC Flashing Flashing Flashing L0 Lighting Turn-OFF Flashing L3 Lighting Turn-OFF Flashing L4 Lighting Turn-OFF Flashing L5 Lighting Turn-OFF Flashing L8 Lighting Turn-OFF Flashing L9 Lighting Turn-OFF Flashing LA Lighting Turn-OFF Flashing LC Lighting Turn-OFF Flashing P1 Lighting Turn-OFF Flashing P4 Lighting Lighting Lighting U0 Flashing Flashing Flashing U1 Lighting Turn-OFF Flashing U2 Flashing Flashing Flashing U4 Flashing Flashing Flashing Flashing Flashing Turn-OFF Flashing Flashing Flashing Flashing Flashing Flashing U5 U8 U9 UA Transmission abnormal between remote controller and indoor unit Remote controller PCB faulty or poor setting during remote controller control Transmission abnormal between main remote controller and sub-remote controller (Sub-remote controller abnormal) Transmission abnormal between other indoor units in the same system and outdoor heat source unit Indoor & outdoor units combination failure (Model (applicable refrigerant error), number of units, etc.) Indoor unit & remote controller combination failure (corresponding remote controller) & PCB class setting error (auxiliary printed circuit board) Lighting Lighting Lighting UC Concentrated address overlapped Flashing Flashing Flashing UE Transmission abnormal between indoor unit and centralized controller Flashing Flashing Flashing UF System not set yet Flashing Flashing Flashing UH System series faulty Abnormal Contents Indoor unit thermistor for liquid pipe abnormal (Poor contact wire disconnection short circuit fault) Indoor unit thermistor for gas pipe abnormal (Poor contact wire disconnection short circuit fault) Indoor unit thermistor for suction air abnormal (Poor contact wire disconnection short circuit fault) Indoor unit thermistor for discharge air abnormal (Poor contact wire disconnection short circuit fault) Indoor unit remote controller sensor abnormal Outdoor unit protection device operation constant-speed compressor trouble (electric leak) Outdoor unit printed circuit board faulty Outdoor unit high-pressure switch operation Outdoor unit low pressure abnormal Outdoor unit inverter compressor trouble (Locking & electric leak) Outdoor unit fan motor locking & connector coming off Outdoor unit electronic expansion valve drive part abnormal Outdoor unit freezing abnormal Outdoor unit discharge pipe temperature abnormal Outdoor unit several sensors abnormal Outdoor unit high-pressure switch faulty Outdoor unit low-pressure switch faulty Outdoor unit thermistor for outdoor air abnormal (Poor contact wire disconnection short circuit fault) Outdoor unit current sensor abnormal Outdoor unit thermistor for discharge pipe (primary side) abnormal (Poor contact wire disconnection short circuit fault) Outdoor unit thermistor for suction pipe (primary side) abnormal (Poor contact wire disconnection short circuit fault) Outdoor unit pressure sensor for discharge pipe abnormal pressure sensor for liquid pipe (secondary side) abnormal Outdoor unit suction pipe pressure sensor abnormal Outdoor unit inverter system faulty Outdoor unit switch box internal temperature abnormal Outdoor unit inverter cooling failure Outdoor unit compressor motor ground fault, short circuit & power unit short circuit Outdoor unit compressor overload & compressor motor disconnection (burnout) Outdoor unit compressor locked Outdoor unit power unit abnormal Outdoor unit inverter-to-outdoor control unit signal transmission abnormal Outdoor unit supply voltage imbalance & open phase Outdoor unit power unit temperature sensor abnormal Lower pressure caused by refrigerant shortage, electronic expansion valve failure and stop valve opening error or the like Reverse phase open phase Supply voltage abnormal and occasional power failure Transmission abnormal between indoor unit and outdoor unit In the case of an abnormality code with white characters on the black base, the system works, but you are always required to check the indicated contents and contact the dealer. In the case of an abnormality marked at the right end of the column above, the operation is carried out only for the Freezer and Refrigerator. Since the outdoor unit is checked for electric leak with power ON, do not turn the earth leakage breaker OFF within 10 seconds after power ON. The indoor unit described above refers to the air conditioner. Trouble shooting 22
ABOUT INSPECTION To protect a product against damage, preventive maintenance is required; you are, therefore, requested to ask the subcontractor appointed by our company for this checking. 24 Periodic Inspection (See the Maintenance check paragraph given on page.) TYPE AND SPECIFICATION OF THE PRODUCTS DESIGN PRESSURE OPERATING CONDITIONS CAPACITY ITEM MODEL NAME POWER SOURCE REFRIGERANT HIGH SIDE (bar) LOW SIDE (bar) MASS MOTOR OUTPUT OPERATING SOUND REFRIGERANT PIPING Working Temperature indoor(cool) ( CWB) Working Temperature indoor(heat) ( CDB) Working Temp. inside Refrigerator OUTDOOR TEMPERATURE COOLING HEATING Air conditioner Refrigerator Freezer Air conditioner Refrigerator Freezer LIQUID GAS ( C) ( C) (kg) (kw) (kw) (kw) (kw) (kw) (kw) (kw) (db) AIR CONDITIONING REFRIGERATION LRYCP14DY1 380 415V 3N~ 50Hz R407C 33.0 17.8 14~25 15~27 0~20 15~43 330 2.2+3.6+4.5 14.0 16.5 24.0 16.5 57 φ 15.9 φ 28.6 (AIR CONDITIONING). φ 28.6 (REFRIGERATION) FREEZING LCBKP1AR / BRR2A1R 380/400/415V 3N~ 50Hz 18.0 17.8 25~ 14 28 (BOOSTER) / 80 (INVERTER) 1.0 1.1 1.1 42 (BOOSTER) / 43 (INVERTER) φ 9.5 (DISCHARGE PIPE), φ 15.9 (SUCTION PIPE) NOTES; Indoor unit (air conditioner) operating conditions: 19 CWB (in cooling). 20 CDB (in heating) Outdoor unit operating conditions: Refrigerant evaporating temperature 10 C / Outdoor temperature 32 C Booster unit operating conditions: Refrigerant evaporating temperature; 40 C The refrigerating & cooling capacity indicates the value in using a refrigerating display case (for 7 feet showcase). The operating sound is the anechoic chamber conversion value. Each value measured at 1 m ahead of the main body, 1 m in height, at 1 m ahead of the main body, 0.75 m in height, and at 1 m ahead of the main body (unit center) is indicated for the outdoor unit, booster unit and inverter box respectively. If the operating sound is measured with each unit actually installed, it is common that the measurement is larger than the indicated value due to ambient noises and reflection. These values are subject to change without prior notice for product improvements. 23
AFTER-SALES SERVICE & WARRANTY After-Sales Service Do not disassemble, modify or remodel and repair any product. Water leak, electric shocks or fire may result. Always ask the dealer where purchased for these operations. Be careful of flammables if refrigerant leaks. When asking for a repair, specify the following: WARNING Do not move and re-install any product by yourself. Deficiency in installation may result in water leak, electric shocks and fire. Always ask the local sales shop where purchased for these operations. The refrigerant used in an air conditioner is safe, which will not leak normally. If refrigerant should leak into the room, coming into contact with flammables on a fan heater, stove and kitchen range or the like, it causes poisonous gas to generate. Turn the burning appliance OFF and ventilate the room, then contact your dealer. When the refrigerant leakage was repaired, be sure to confirm to the serviceman that the leaking portion has been repaired securely before starting operation. (1) Model name (2) Serial No. and date of installation (3) Failure condition Describe this condition in details if possible. (Also, inform us of the contents displayed on the remote controller.) (4) Address, name and phone No. Repair after a lapse of in-warranty service period Contact the dealer where purchased. If the function can be maintained after repair, the defectives will be repaired upon customer s request, the repair cost of which is charged to you. Maintenance check If the integrated system for refrigerators, freezers and air conditioning is used in several seasons, the interior may be contaminated, downgrading the performance. Since professional techniques are required for this disassembly and internal cleaning or washing, concluding the maintenance check contract (chargeable) is recommendable apart from normal maintenance. For details, contact your dealer where purchased. Also, it should be noted that any malfunction or defect attributable to illegal disassembly and internal cleaning or the like that was conducted by other than the subcontractor designated by our company may be out of warranty. Transfer or re-location and disposal When the integrated system for refrigerators, freezers and air conditioning is moved re-located due to a change of abode or the like, professional techniques are required for such operations; you are, therefore, requested to contact the local sales shop where purchased. In case where the integrated system for refrigerators, freezers and air conditioning is disposed of, contact the dealer where purchased since the refrigerant is mandatory for recovery, transportation and destruction, based on Fluorocarbon Recovery & Destruction Law. If you have any unclear point or question: For after-sales service, contact the dealer where purchased. Secondary Warranty We are not in a position to give any secondary guarantee for problems attributable to product accidents, such as cooled articles and sales guarantee. In case where there is a fear of secondary disasters, carry out periodical temperature control and also, after contacting the dealer where purchased, provide an alarm system and auxiliary equipment or the like. Furthermore, you are requested to conclude a non-life insurance contract in advance. Trouble shooting 24
25 When the defectives cannot be repaired free of charge (Outside the range of warranty) 1. Accident arising due to use outside the operation criteria Use not falling within the operating criteria When a product was used for other than the specified applications and remodeled or modified 2. When mis-selection, mis-installation, work failure and other nonconformities occurred as described below: (Note) Shows specific example (1) Poor model selection When model selection not suitable for storage applications was carried out: Cooling a product not in the storage temperature When our company judges that the model selected is too large or too small for the cooling load The frequency of start and stop is more than 6 times/hour or the unit does not cool down to the set temperature. (2) Installation nonconformity (Setup & mounting environment) When a unit is not installed in a horizontal and stable place No unit is fixed. When the atmosphere at the installation site differs from the normal atmospheric conditions Sea breeze atmosphere, coastal area, oil mist atmosphere, near or around the kitchen exhaust duct or port, other corrosive gases and viscous mist atmosphere When the room is not well-ventilated and filled with hot air, leading to poor heat discharge Exhaust air is sucked again by the machine. (3) Work nonconformity When in-system vacuum drying is not sufficient Clogging caused by water freezing in the fine part When in-system air-tightness is unsatisfactory Refrigerant gas leaking When foreign matter intrudes into the system Clogging in the in-system fine part When the modification works on the field side adversely affected a product When a product was used outside the range of working temperature due to field modification or remodelling When an accident occurred due to mis-handling during installation works Outside panel looseness, chattering, broken piping and bent pipe (4) Operational nonconformity When the temperature was mis-set for a product to be stored Storage of vegetables below 0 C When periodic maintenance was neglected: Air heat exchanger clogging, rusting in each part, gas leak, indoor unit (showcase & unit cooler) freezing (5) Miscellaneous When no product was improved in spite of the prior demand of our company persons concerned for improvements: For example, simultaneous start & stop when several units are installed Damage caused by disasters and fire: Electrical parts damage caused by falling of thunderbolts When a product is installed and operated while deviating from general common sense: Use of this unit without piping heat insulation works When the operations work was conducted without observing the following showcase restrictions: <Showcase Restrictions> Install a thermostatic expansion valve and liquid solenoid valve in each showcase. (Both for R407C) Heat insulation in the feeler bulb part of thermostatic expansion valve The [ Refrigerating ] side should not be heat-insulated. The [ Freezing ] side should be heat-insulated. The showcase connected to a single outdoor unit should be installed on the same floor. The heat exchanger piping used should be such that its outlet is on the lower side. (See the figure on the right.) Heat exchanger Inlet (Upper side) Outlet (Lower side)
DAIKIN INDUSTRIES, LTD. Noboru Murata Manager Quality Control Department 1st of July 2005 DAIKIN.TCF.023 TNO 0502240101 Umeda Center Bldg., 4-12, Nakazaki-Nishi 2-chome, Kita-ku, Osaka, 530-8323 Japan LRYCP14DY1, LRYCP14DY1E EN60335-2-40, 3P162770-1