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OPERATION MANUAL
Total Heat Exchanger English HRV (Heat Reclaim Ventilation) Español MODELS (Ceiling mounted duct type)
VAM 150GJVE Portugues VAM 250GJVE VAM 350GJVE Ðóññêèé VAM 500GJVE VAM 650GJVE VAM 800GJVE VAM 1000GJVE VAM 1500GJVE VAM 2000GJVE 00_CV_3P034927-5J.fm Page 2 Saturday, November 19, 2005 4:42 PM
HRV
HRV; Heat Reclaim Ventilation Before using the DAIKIN HRV, be sure to read this operation manual thoroughly. If you have any problems or there is a malfunction, please refer to this operation manual. Please keep this manual for your future reference whenever you do not understand how to use it when something is wrong with the unit during the operation.
HRV;Ventilación con recuperación de calor Antes de utilizar el HRV de DAIKIN, lea cuida- dosamente este manual de funcionamiento. Si tiene algún problema o hay un mal funciona- miento, consulte este manual de funcionamiento. Por favor conserve este manual para poder con- sultarlo cuando no entienda cómo utilizar la unidad o cuando algo falle durante su funciona- miento.
HRV;Ventilação de Recuperação Térmica Antes de utilizar o DAIKIN HRV, leia atentamente este manual. Caso tenha algum problema ou se existe alguma falha no funcionamento, consulte este manual. Guarde este manual para futuras consultas sem- pre que não souber como utilizar ou se existir algum problema com a unidade durante a oper- ação.
HRV; Вентиляция с реãенерацией тепла До начала работы с DAIKIN HRV внимательно изóчите данное рóêоводство по эêсплóатации. При возниêновении любых нарóшений работы или проблем обращайтесь ê данномó рóêоводствó по эêсплóатации. Сохраняйте данное рóêоводство для бóдóщих обращений при любых сложностях в работе с блоêом или нарóшениях еãо фóнêционирования.
HRV; Isý Geri Kazaným Vantilasyonu DAIKIN HRV’yi kullanmadan önce, bu kullaným kýlavuzunu tamamýyla okuduðunuzdan emin olun. Herhangi bir problemle karþýlaþmanýz veya bir arýza olmasý durumunda, lütfen bu kullaným kýlavuzuna baþvurun. Ýþletme sýrasýnda ünitede bir sorun olduðunda nasýl kullanýlacaðýný anlamadýðýnýz ileriki zamanlarda baþvurmak üzere lütfen bu kýlavuzu saklayýn. 00_CV_3P034927-5J_Illust.fm Page 1 Thursday, November 24, 2005 3:46 PM
MODELS VAM150GJVE VAM250GJVE VAM350GJVE VAM500GJVE VAM650GJVE VAM800GJVE VAM1000GJVE
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MODELS VAM1500GJVE VAM2000GJVE
(3) Exhaust fan (1) Hanger bracket (7) Maintenance cover
(2)Duct connecting flange (6) Control box
(10) Air supply fan
(5) Damper
(4) Air filter (Long life filter) (8) Heat exchange elements It exchanges the heat (temperature and humidity) from indoors with the air taken in from outdoors, changes the outside air to the same condition as indoors and then brings it indoors. (11) Remote controller Important (Optional accessory) Sometimes when first using the unit, the smell of the heat exchanging element may be noticeable, but it is not harmful. The smell will gradually go away as the unit is used.
(15) Maintenance space for the air filters, the heat exchange elements and control box
(17) SA (14) OA (Supply air) (Outdoor air) [Supply air [Fresh air to room] from outdoors]
(13) EA (Exhaust air) [Exhaust air to outdoors]
(16) RA (Retun air) [Return air from room] (12) Damper motor
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• Independent system • Centralized system HRV unit HRV unit
Centralized controller
Remote controller for Remote controller for HRV unit (BRC301B61) HRV unit (BRC301B61)
Remote controller for indoor unit
• Combined operation system with VRV systems and Sky-air series
Indoor unit HRV unit Indoor unit HRV unit
Remote controller Remote controller Remote controller for indoor unit for indoor unit for HRV unit (BRC301B61)
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25
NOT AVAILABLE
27
Remote controller for VRV BRC1A61, 62 Remote controller for HRV BRC301B61
NOT AVAILABLE
Remote controller for VRV BRC1C61
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1·4 1·4 1·4
2 2 3 3
Remote controller for HRV BRC301B61 Remote controller for VRV BRC1C61 Remote controller for VRV BRC1A61, 62
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1 1 1 3 3 2 3 2 2
Remote controller for HRV BRC301B61 Remote controller for VRV BRC1C61 Remote controller for VRV BRC1A61,62
5 MODELS VAM150GJVE - 1000GJVE MODELS VAM1500GJVE VAM2000GJVE
6 MODELS VAM150GJVE - 1000GJVE MODELS VAM1500GJVE VAM2000GJVE
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VAM150GJVE VAM650GJVE VAM250GJVE VAM800GJVE VAM350GJVE VAM1000GJVE Total Heat Exchanger HRV (Heat Reclaim Ventilation) Operation manual VAM500GJVE VAM1500GJVE VAM2000GJVE CONTENTS • Never expose little children, plants or animals directly to the air flow. ILLUSTRATIONS ...... [1]~[5] Adverse influence to little children, animals and plants may 1. SAFETY CAUTIONS ...... 1 result. 2. WHAT TO DO BEFORE OPERATION ...... 2 • Neither place a flammable spray bottle near the HRV unit 3. OPERATION PROCEDURE ...... 4 or indoor intake and outlet grills nor perform spraying. 4. MAINTENANCE (for a qualified service person only) .....7 Doing so may result in a fire. 5. TROUBLE SHOOTING ...... 8 6. AFTER-SALES SERVICE ...... 10 • Turn off the power when the unit is not to be used for long periods of time. Otherwise, the unit may get hot or catch on fire due to dust 1. SAFETY CAUTIONS accumulation. • Do not block the intake or outlet grills. Read the following cautions carefully and use your equip- ment properly. If the fan does not blow air throughout the entire room it may This unit comes under the term “appliances not accessible to cause machine trouble. the genetic public.” • Use gloves when cleaning. Cleaning without gloves may cause injury. There are two kinds of safety cautions and tips listed here as • Do not operate the remote controller with wet hands. follows: This may cause electric shock. WARNING ...... Improper handling can lead to such serious • Never touch the internal parts of the controller. consequences as death or severe injury. Do not remove the front panel. Some parts inside are danger- ous to touch, and a machine trouble may happen. For check- CAUTION...... Improper handling can lead to injury or ing and adjusting the internal parts, contact your dealer. damage. It could also have serious con- • Do not let any kind of sprays get on the remote control- sequences under certain conditions. ler (insecticides, cleaning materials, etc.) NOTE This may cause breakage, deformation, or malfunction. • These instructions will ensure proper use of the equipment. • Do not wipe the controller operation panel with benzine, Be sure to follow these important safety cautions. thinner, chemical dustcloth, etc. Keep these warning sheets handy so that you can refer to The panel may get discolored or the coating peeled off. If it them if needed. is heavily dirty, soak a cloth in water-diluted neutral deter- gent, squeeze it well and wipe the panel clean. And wipe it Also, if this equipment is transferred to a new user, make sure with another dry cloth. to hand over this user’s manual to the new user. • The appliance is not intended for use by young children or infirm persons without supervision. WARNING (During Operation) • Young children should be supervised to ensure that • When the unit is in abnormal conditions (smell of some- they do not play with the appliance. thing burning, etc.), cut off the power, and contact your • Consult with installation contractor for cleaning the dealer. inside of the air conditioner. Continued operation under such circumstances may result Wrong cleaning may make the plastics parts broken or in a failure, electric shock, and fire. cause failure of water leakage or electric shock. • It is not good for your health to expose your body to the • Do not place objects in direct proximity of the outdoor air flow for a long time. unit and do not let leaves and other debris accumulate • Do not operate the unit with a wet hand. around the unit. An electric shock may result. Leaves are a hotbed for small animals which can enter the • Open the windows and ventilate the room if flammable unit. Once in the unit, such animals can cause malfunctions, gas is leaked. smoke or fire when making contact with electrical parts. Insufficient ventilation when the unit is turned on or off may cause an explosion from sparks at the electrical connection. • Do not wash the HRV unit with water. WARNING (For installation) Electric shock or fire may result. (Not including air filters, etc.) • Do not attempt to install the unit yourself. • Be sure to stop the unit and turn off the power when Ask your dealer for installation of the unit. cleaning or inspecting it. Incomplete installation performed by yourself may result in a As the fan is rotating at high speed, it will cause injury. water leakage, electric shock, and fire. • Never inspect or service the unit by yourself. • Installation should be done following the installation Ask a qualified service person to perform this work. manual. (The qualified service person) Incorrect installation may cause leaking, electric shock, or fire. Injuries may result if the unit falls. • Do not allow exhaust air to enter the outside air intake CAUTION (During Operation) vent. • Do not use the HRV unit for other purposes. This may cause the interior of the room to become contami- In order to avoid any quality deterioration, do not use the nated and harming the health. unit for cooling precision instruments, food, plants, animals • Locate the outside air intake vent so that it does not or works of art. take in exhaust air which contains combustion air, etc. • Do not use burning appliances directly in the path of the Incorrect installation may cause a loss of oxygen in the air from the unit. room, leading to serious accidents. Incomplete combustion of the burning appliances may occur.
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• All wiring must be performed by an authorized electrician. • Install the two outdoor ducts with down slope to pre- To do wiring, ask your dealer. Never do it yourself. vent rainwater from entering the unit. • Make sure that a separate power supply circuit is pro- If this is not done completely, water may enter the building, vided for this unit and that all electrical work is carried damaging furniture, and cause electric shock and fire. out by qualified personnel according to local lows and • Insulate the two outdoor ducts to prevent dew conden- regulations. sation (and the indoor duct as well if needed). Insufficient power circuit capacity or incorrect work may If this is not done completely, water may enter the building, cause electric shock or fires. damaging furniture, etc. • Install the unit on a foundation strong enough to with- • Use electric insulation between the duct and the wall stand the weight of the unit. when using metal ducts to pass metal or wire laths or A foundation of in sufficient strongth may result in the unit metal plating into wooden buildings. falling and causing injuries. This may cause electric shock, short circuits, or fire. • Connect the remote controller to the correct model. • Arrange the drain hose to ensure smooth drainage. This may cause electric shock or fire. Incomplete drainage may cause wetting of the building, fur- • Do not connect additional electric wirings. niture etc. This may cause fire. • Avoid placing the controller in a spot splashed with water. • Do not install the HRV unit at any place where flamma- Water coming inside the controller may cause an electric ble gas may leak out. leak or may damage the internal electronic parts. If the gas leaks out and stays around the unit, a fire may • Never pull or twist the electric wire of a remote controller. break out. It may cause the unit to malfunction. • Be sure to establish an earth. Do not earth the unit to a utility pipe, arrester, or telephone (For moving and reinstalling/ earth. WARNING repairing) Incomplete earth may cause electrical shock, or fire. • Do not modify the unit. A high surge current from lightning or other sources may This may cause electric shock or fire. cause damage to the air conditioner. • Ask your dealer to move and reinstall the unit. • Be sure to install an earth leakage breaker. Incomplete installation may result in electric shock, and fire. Failure to install an earth leakage breaker may result in elec- • Do not disassemble or repair the unit yourself. tric shocks, or fire. This may cause electric shock or fire. Contact your dealer to have such work done. CAUTION (For installation) • When removing the unit, be sure not to tip it. • Do not use the HRV unit or an air suction/discharge The water inside the unit may drip or leak out, and get on grille in the following places. furniture, etc. a. Place subjected to high temperature or direct flame. • Do not move or attempt to re-install the remote control- Avoid a place where the temperature near the HRV unit ler yourself. and the air suction/discharge air grille exceeds 40°C. If Incorrect installation, may cause electric shock or fire. Con- the unit is used at high temperature, deformed air filter tact your dealer to have such work done. and heat exchange element or burned motor result. b. Place such as kitchens or other places where oil fumes are present. 2. WHAT TO DO BEFORE OPERATION This may cause fire. This operation manual is for the following systems with standard c. Place such as machinery plant and chemical plant control. Before initiating operation, contact your Daikin dealer for where gas, which contains noxius gas or corrosive the operation that corresponds to your system type and mark. components of materials such as acid, alkali, organic If your installation has a customized control system, ask your solvent and paint, is generated. dealer for the operation that corresponds to your system. Place where combustible gas leakage is likely. This may cause gas poisoning or fires. 2-1 NAMES OF PARTS (Refer to figure 1) d. Place such as bathroom subjected to moisture. (1) Hanger bracket Electric leak or electric shock and other failure can be (2) Duct connecting flange caused. e. Locations below freezing point. (3) Exhaust fan f. Near machinery emitting electromagnetic waves. (4) Air filter (Long life filter) Electromagnetic waves may disturb the operation of the (5) Damper control system and result in a malfunction of the equipment. (6) Electric parts box g. Place subjected to much carbon black. (7) Maintenance cover Carbon black attaches to air filter and heat exchange ele- (8) Heat exchanger elements ment, marking them unable to use. • Is a snow protection measure taken? (9) Name plate For detail, consult your dealer. (10)Air supply fan • Make sure the temperature and the humidity of the (11)Remote controller (Optional accessory) installation location is within the usage range, not (12)Damper motor exceed the limit. (13)EA Exhaust air to outdoors Do not install in cold storage or other locations with low tem- peratures or near heated pools. This may cause fires or (14)OA Fresh air from outdoors short circuits. (15)Maintenance space for the air filters, the heat exchange elements and control box. (16)RA Return air from room (17)SA Supply air to room
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2-2 REMOTE CONTROLLER AND CHANGEOVER 13 Display “” (defrost/hot start) SWITCH: NAME AND FUNCTION OF EACH It may be displayed when the combined air conditioner is SWITCH AND DISPLAY (Refer to figure 3) in heating mode. • Only the items marked with an asterisk (∗ mark) are expla- ∗∗∗14 Timer mode start/stop button nation relating to the functions and display of the unit. Refer to the chapter “Operation procedure - Unmarked items are functions of the combined air condition- Programming start and stop of the system with timer.” (3-2) ers. When using buttons for functions which are not avail- ∗∗∗15 Timer on/off button able (buttons which are not described in the text) will cause Refer to the chapter “Operation procedure - “NOT AVAILABLE” to be displayed. Programming start and stop of the system with timer.” (3-2) Contact your dealer for more detailed descriptions of those ∗∗∗16 Inspection/test operation button functions (buttons). Pressed during inspection or “test run.” ∗ 1 On/off button • Do not use under usual use. Press the button and the system will start. Press the but- (service person/installer only) ton again and the system will stop. ∗∗∗17 Programming time button ∗∗∗ 2 Operation lamp (red) Use this button for programming start and/or stop time. The lamp lights up during operation. 18 Temperature setting button ∗∗∗ 3 Display “ ” (changeover under control) Use this button for setting the desired temperature of air May be displayed when combined with a VRV-system air conditioner combined with this unit. conditioner. ∗∗∗19 Filter sign reset button While the indication is shown, the ON/OFF of HRVs can- Refer to “4-1 HOW TO CLEAN THE AIR FILTER”. not be operated by the HRV remote controller. 20 Fan speed control button It is impossible to changeover heat/cool with the remote Press this button to select the fan speed of air conditioner controller when this icon is displayed. combined with this unit. 4 Display “ ” (air flow flap) ∗21 Operation mode selector button This displays the direction and mode of the air flow flap of Press this button to select the operation mode of air con- the combined air conditioner. ditioner combined with this unit. 5 Display “ ” (ventilation/air cleaning) 22 Air flow direction adjust button This display shows that the total heat exchange and the Press this button to select the air flow direction of air con- air cleaning unit are in operation. (These are optional ditioner combined with this unit. accessories.) 23 Fan only/air conditioning selector switch
6Display “”C (set temperature) Set the switch to “” for fan only operation or to “” This displays the set temperature of the combined air for heating or cooling operation. conditioner. 24 Cool/heat changeover switch It is not displayed when the unit is used as an indepen- Set the switch to “ ” for cooling or to “ ” for heating dent system. operation. 7Display “” “” “” “” “” 25 Remote controller thermo (operation mode) This detects the temperature around the remote control- This displays the operating status of the combined air ler. This is not the same as the temperature of return air conditioner. from room (RA) by heat exchanger unit. • There is no “heating” for the VRVII system ∗ (Cooling only type). 26 Display “ ” “ ” “ ” • “ ” is only available for systems operating in cool- This displays the ventilation mode. ing and heating at the same time. (BRC301B61, BRC1C61 and so on.) (This is not displayed on the controller BRC1A61, 1A62) ∗∗∗8Display “” (programmed time) ∗27 Display “NOT AVAILABLE” This display shows the programmed time of the system • “NOT AVAILABLE” may be displayed for a few sec- start or stop. onds if the function for the button pressed is not avail- 9Display “”TEST (inspection/test operation) able for the unit or the air conditioner. When the inspection/test operation button is pressed, the • “NOT AVAILABLE” is only displayed when none of the display shows the mode in which the system actually is. indoor units is equipped with the function in question • Do not use under usual use when running several units simultaneously. It is not dis- (service person/installer only). played if the function is available on even one of the units. 10 Display “ ” (under centralized control) ∗28 Ventilation fan mode selector button When this display shows, the system is under centralized (available only connecting the HRV unit) control. (This is not a standard specification.) This is pressed to switch the fan mode of the HRV unit. ∗ During this indication appears on the display, the ON/ 29 Ventilation fan speed control button OFF and timer operation may not be possible with the (available only connecting the HRV unit) HRV remote controllers. This is pressed to control the fan speed of the HRV unit. (Refer to item 11) ∗∗∗11 Display “” (fan speed) ∗30 Display “” (operation standby) This display shows the fan speed you have selected. It indicates the pre-cooling/pre-heating operation. This This is always displayed when you use the remote con- unit is at stop and will start operation after the pre-cool- troller BRC301B61. ing/pre-heating operation is over. But, this is only displayed when the fan speed selection Pre-cooling/pre-heating operation means the operation of button is pressed. It normally displays the set fan HRVs is delayed during the startup operation of linked air strength of the combined air conditioner. (only to use conditioners such a before the office hours. BRC1C61, BRC1A61, A62) During this period the cooling or heating load is reduced ∗∗∗12 Display “” (time to clean air filter) to bring the room temperature to the set temperature in a Refer to “4-1 HOW TO CLEAN THE AIR FILTER”. short time.
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31 Display “FRESH UP” 3. OPERATION PROCEDURE This displays the status of two fans. Refer to “OPERA- TION PROCEDURE” 3-1 INDEPENDENT, COMBINED OPERATION (Refer to figure 4) NOTE • In contradistinction to actual operating situations, the display For non-independent systems, starting/stopping operation on figure 3 shows all possible indications. and timer operation may not be possible. • If the filter sign lamp lights up, clean the air filter as Use the air conditioner remote control or the Centralized explained in the chapter “MAINTENANCE”. After cleaning controller in such cases. and reinstalling the air filter: press the filter sign reset button 1 Press the on/off button. Operation lamp lights up and the on the remote controller. The filter sign lamp on the display system will start operation. will go out. 2 Press ventilation mode button if you wish to change the mode. 2-3 Explanation for SYSTEMS The display rotates through the following selections This unit can be made a part of two different systems: as every time the button is pressed. part of the combined operation system used together with VRVII SYSTEM Air Conditioners or Sky-air series and as the independent system using only the HRV. An operating remote controller is required when using the unit as an Automatic mode Heat exchange mode Bypass mode independent system. Ask your dealer what kind of system your system is set up for before operation. For the operation of the remote controller for indoor unit 3 Press ventilation fan speed button if you wish to change and centralized controller, refer to the instruction manual the fan speed. provided with each unit. The display rotates through the following selections See the included operating manuals for details on how to every time the button is pressed. operate each remote control.
OPERATION for EACH SYSTEM Low High Low High Sample system (Refer to figure 2) LHFresh up L Fresh up H Independent system FRESH UP FRESH UP [Operation] The display doesn’t disapper. The HRV unit can be started and stopped using the remote
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EXPLANATION OF VENTILATION MODE Example 1: Automatic mode :When combined with a VRVΙΙΙΙΙΙ-system In case of the remote controller “BRC1C61” and as equivalent. air conditioner Display changes as below. The unit automatically switches When air conditioner and HRV between “” and “” based on unit are not connected via duct information from the VRVΙΙΙΙΙΙ system air conditioner (heating, cooling, fan, and set temperature) and information from
When air conditioner and HRV unit are connected via duct
(HC0007)
Independent duct system VRV: Cooling mode HRV: Heat exchange mode
(HC0008) VRV: Fan mode The HRV unit cannot be operated independently when the HRV: Heat exchange mode air conditioner is connected to the HRV unit via a duct. When using the HRV unit, set the air conditioner to “fan” mode on weak fan strength.
Operation mode display “Ventilation” is displayed. NOTE) Current Ventilation mode can be visible and selected on the remote controller.
Operation mode hr selector button hr NOT TEST AVAILABLE
TEST
Remote controller for indoor unit • Each time you press the operation selection button, the operation mode display will change as shown in the figure below.
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Example 2: In case of the remote controller “BRC1A61,62” “No indication” Display changes as below. When air conditioner and HRV unit are not connected via duct
VRV: Cooling mode 2 Press the programming time button and set the time for HRV: stopping or starting the system. Heat exchange mode Each time this button is pressed, the time advances or goes backward by 1 hour.
VRV: • The timer can be programmed for a maximum of 72 hours. Fan mode HRV: • Each time when “” is pushed, the time advances one hour. Heat exchange mode Each time when “” is pushed, the time goes back one hour.
3 Press the timer on/off button. The timer setting procedure ends. The display “” or “” changes from flashing light to VRV: constant light. Stopping HRV: • After the timer is programmed, the display shows the Heat exchange mode remaining time. For cancelling the timer operation, push the timer on/off button “” once again. The indication disappears.
NOTE When air conditioner and HRV unit are connected via duct • When setting the timer off and on at the same time, repeat the above procedure (from “”1 to “”3 ) once again.
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• Setting “off after 3 hours” and “on after 4 hours” will • To clean the HRV, or maintenance be sure to stop operation, ↓ and turn the power switch off. It may cause electrical shock • Operation will stop after 3 hours. and it is very dangerous to touch the rotating part. Operation will then start in 1 hour from the time it stopped. • Do not wash the HRV with water. Doing so may result in an electric shock. 3-3 NIGHTTIME FREE COOLING OPERATION 〈〈〈AUTOMATIC HEAT PORGE FUNCTION AT NIGHT〉〉〉 CAUTION The nighttime free cooling is an energy-conserving function which works at night when the air conditioners is off, reducing • Use gloves when cleaning. the cooling load in the morning when the air conditioner is Cleaning without gloves may cause injury. turned on by ventilating rooms which contain office equipment • Watch your step. which raises the room temperature. Use caution, as this requires working in high places. • Nighttime free cooling only works during cooling and when • Do not use benzene or thinner to clean the outside surfaces connected to Building Multi or VRV systems. of the air conditioner. • Nighttime free cooling is set to “off” in the factory settings; This may cause cracks, discoloration, or machine trouble. so request your dealer to turn it on if you intend to use it. Operation image 4-1 HOW TO CLEAN THE AIR FILTER Clean the air filter when the display shows “” 40 (TIME TO CLEAN AIR FILTER). (a) It will display that it will operate for a set amount of time. 30 CLEANING FREQUENCY AT LEAST ONCE EVERY YEARS (c) (FOR GENERAL OFFICE USE) (b) 20 (CLEAN THE MORE FREQUENTLY IF NECESSARY.) OFF ON OFF • Increase the frequency of cleaning if the unit is installed in a Nighttime free cooling operation room where the air is etermely contaminated. • If the dirt becomes impossible to clean, change the air filter OFF (Air filter for exchange is optional).
(d) (e) 1. Detach the maintenance cover. Operating state Temperature (˚C) Temperature state Operating 22:00 24:00 (time) Go into ceiling through the inspection hatch, remove Following morning binding metal of maintenance cover and take it off. (Refer to figure 7) (a) Outside temperature 2. Detach the air filter. (b) Indoor temperature Take out from the heat exchange elements. (Refer to figure 7) (c) Set temperature 3. Clean the air filter. (Refer to figure 8) (d) Operating state of Air conditioner Use vacuum cleaner A) or wash the air filter with water B). (e) Operating state of Total heat exchanger A) Using a vacuum cleaner B) Washing with water EXPLANATION OF NIGHTTIME FREE COOL- When the air filter is very dirty, use soft brush and ING OPERATION IMAGE neutral detergent. After cleaning, remove water and dry in the shade. The unit compares the indoor and outdoor temperatures after the air conditioning operation stops for the night. If the following condi- NOTE tions are satisfied, the operation starts, and when the indoor tem- • Do not wash the air filter with hot water of more than 50°C, perature reaches the air conditioning setting, the operation stops. as doing so may result in discoloration and/or deformation.
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NOTE • Lightly contact the brush on the surface of the heat • Do not remove the air filter except when cleaning. exchange element when cleaning. Breakdown may occur. (Do not crush the heat exchange element while clean- ing.) 4-2 OPTIMUM OPERATION CAUTION (During Operation) Observe the following precautions to ensure the system oper- ates. • Do not clean touching strongly with a vacuum cleaner. This • When the display shows “ ”, ask a qualified service may crush the mesh of the heat exchange elements. person to clean the filters (Refer to MAINTENANCE). • Never wash the heat exchange element with water. • Do not operate the HRV unit in Bypass mode when the • Have your dealer professionally clean the filter if it is very dirty. room air is under heating in winter or when the outside 5. Put the heat exchange element on the rail and insert it temperature is 30°C or higher. securely in place. This may cause condensation to form on the main unit or on discharge grill, or around air supply opening. 6. Install the air filter securely in place. (Refer to the section (4-1, 4)) • Keep the indoor unit and the remote controller at least 1 m away from televisions, radios, stereos, and other 7. Install the maintenance cover securely in place. similar equipments. (Refer to the section (4-1, 5)) This may cause distorted picture or noise. CAUTION • Turn off the main power supply switch when it is not used for long periods of time. When the main power • Always use the air filter. switch is turned on, some watts of electricity is being If the air filter is not used, heat exchange elements will be used even if the system is not operating. clogged, possibly causing poor performance and subse- • Do not install the remote controller where the indoor quent failure. temperature and humidity, respectively, are out of the range of 0-35°C and RH 40-80%. 4-4 INSPECTION OF THE FAN MOTER This may cause malfunction. • Do not install the remote controller where direct sun- NOTE light may fall on it. • When the fan motor fails, the remote controller does not dis- This may cause discoloration or deformation. play any error code. Usage under that status will lead to insufficient ventilation. NOTE The air supply and exhaust fans should be checked once • When the fan motor fails, the remote controller does not dis- every one or two months. play any error code. You can make a simple check such as below way. Usage under that status will lead to insufficient ventilation. To check the wind flow, hold a bar of which the end has a The air supply and exhaust fans should be checked once string or other similar lightweight item over the supply grille every one or two months. and exhaust grille. You can make a simple check such as below way. To check the wind flow, hold a bar of which the end has a string or other similar lightweight item over the supply grille 5. TROUBLE SHOOTING and exhaust grille. 5-1 THE FOLLOWING SITUATIONS ARE NOT 4-3 HOW TO CLEAN THE HEAT EXCHANGE MALFUNCTIONS ELEMENT • Operation does not start. CLEANING FREQUENCY
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•“ ” is displayed on the remote controller. List of malfunction codes of Remote controller of the HRV-system
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5-5 IF THE SYSTEM DOES NOT PROPERLY Recommendations for maintenance and inspection OPERATE EXCEPT FOR THE ABOVE Since dust collects after using the unit for several years, the MENTIONED CASE, AND NONE OF THE ABOVE performance will be deteriorated to some extent. MENTIONED MALFUNCTIONS IS EVIDENT, Taking apart and cleaning inside require technical expertise, CONTACT YOUR DEALER, AND REQUEST FOR so we recommend entering a maintenance and inspection INVESTIGATION THE SYSTEM ACCORDING TO contract (at a cost) separate from normal maintenance. THE FOLLOWING PROCEDURES BY A Recommended inspection and maintenance cycles QUALIFIED SERVICE PERSON [Note: The maintenance cycle is not the same as The following malfunctions must be cheched by a qualified the warranty period.] service person. Do not check by yourself. Table 1 assumes the following usage conditions. • The unit does not operate at all. • Normal use without frequent starting and stopping of the a. Check if there is a power failure. machine. After power has been restored, start operation again. (Although it varies with the model, we recommend not start- b. Check if the fuse has blown. ing and stopping the machine more than 6 times/hour for Change the fuse. normal use.) c. Check if breaker has worked. • Operation of the product is assumed to be 10 hours/day, Contact your dealer. 2500 hours/year. d. Are there any problems with the power or wiring? Inspect the power and wiring. e. Are there any problems with the fan unit? Inspect the fan motor and fan. • Amount of discharged air is small and the discharging sound is high. a. Check if the air filter and heat exchange element are clogged. (Check both SA and RA air filter. Check both sides of elements.) Clean the air filter and heat exchange element. • Amount of discharged air is large and so is the sound. a. Check if the air filter and heat exchange element are not installed. Install the air filter and heat exchange element.
6. AFTER-SALES SERVICE After-sales service:
WARNING • Do not modify the unit. This may cause electric shock or fire. • Do not disassemble or repair the unit. This may cause electric shock or fire. Contact your dealer. • Do not remove or reinstall the unit by yourself. Incomplete installation may cause a water leakage electric shock and fire. Contact your dealer.
When asking your dealer to repair, inform related staff of the details as follows: • Shipping date and installation date: • Malfunction: Inform the staff of the defective details. (Malfunction code being displayed on the remote controller.) • Name, address, telephone number Repair where the warranty term is expired Contact your dealer. If necessary to repair, pay service is available. Minimum storage period of important parts Even after a certain type of the HRV unit is discontinued, we have the related important parts in stock for 6 years at least. The important parts indicate parts essential to operate the HRV unit.
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3P034927-5J EM03A029 (0511) FS HT