Catalogue/Engineering Data ED-FUW-2014 (50 Hz/60 Hz) Large-Sized Chilled Water Fan Coil Unit (50/60 Hz) FUW015A FUW025A FUW035A FUW050A FUW020A FUW030A FUW040A DAIKIN INDUSTRIES, LTD.
Literature No.: ED-FUW-1405A Part No.: M08039130033 Contents Nomenclature...2 Features...2 Electric Heater Power...3 Specifications...4 Components data...5 Sound data...6 Performance correction coefficient...7 Outline and dimensions...8 Electrical data...10 Wiring diagrams...11 Installation...13 Service and maintenance...15 Trouble shooting...16 Exploded view and part list...17 Note: Installation and maintenance are to be performed only by qualified personnel who are familiar with local codes and regulations, and experienced with this type of equipment. Caution: Sharp edges and coil surfaces are a potential injury hazard. Avoid contact with them. Warning: Moving machinery and electrical power hazard. May cause severe personal injury or death. Disconnect and lock off power before servicing equipment. 1
Nomenclature FUW 030 A- 4 L -A AA E E:export U:"Made in China" label Design series A:220-240V/1Ph/50Hz K:208-230V/1Ph/60Hz L-Left hand (Facing discharge) R-Right hand (Facing discharge) 4-4 coil rows; 6-6 coil rows A-Design Serial No. 030-Nominal airflow is 3000 m 3 /h FUW-Large-Sized FCU Features General Information DAIKIN for years has been committed to provide high quality air handling systems of various models and types, and has made remarkable achievements in the industry. As a new generation of products, the FUW series slim ceiling air handling units are launched by DAIKIN to adapt to the increasingly cramped building layout. In addition to the outstanding performance of previous DAIKIN air handing units, the FUW series slim ceiling air handling units feature a slim size, only 420mm in height. The airflow is adjustable within the range of three levels to meet different air flow needs. Powered by a 50 or 60Hz single-phase power supply, this series eliminates the need for users to expand the power capacity. The FUW series can be mounted in a wide variety of places, especially those with limited space and high noise. Featuring easy installation and flexible use, the FUW series helps minimize the indoor space and maximize customers benefits. Structure The high-strength galvanized steel sheets, coated with electrostatic spraying, are highly corrosion-proof. Made of a new type of PE material, the heat insulator features ideal thermal insulation, sound absorption, and no moisture permeability. The insulator is also proof against cold bridge. Fans With efficient tilted multi-blade centrifugal fans, this unit provides low noise but high reliability. The fan and the motor are coupled directly. The high-precision and quality ball bearing eliminate the need for lubricating. Multi-level Speed Control Driven by a single-phase capacitor-running asynchronous motor, the unit can be adjusted at three levels to provide different amounts of air flow. Filters The air inlet is equipped with primary nylon filters. Heat Exchanger Made on the OAK manufacturing facility the heat exchanger uses thin-walled copper tubes mechanically expanded into new-type fins, to ensure close contact between the cooper tubes and fins. This enables the coils to provide best heat exchange and the units to run reliably and efficiently. Performance FUW series products feature high external total pressure (ETP) and large cooling capacity. Slim in size and simple in structure, this series makes it easy for installation and maintenance. 2
Electric Heater Power Electric Box Model Power Supply Capacity(kW) MHW-EH-020BOX 220-240V/1Ph/50Hz; 208-230V/1Ph/60Hz 2 MHW-EH-030BOX 220-240V/1Ph/50Hz; 208-230V/1Ph/60Hz 3 MHW-EH-040BOX 220-240V/1Ph/50Hz; 208-230V/1Ph/60Hz 4 MHW-EH-050BOX 220-240V/1Ph/50Hz; 208-230V/1Ph/60Hz 5 MHW-EH-060BOX 220-240V/1Ph/50Hz; 208-230V/1Ph/60Hz 6 MHW-EH-075BOX 220-240V/1Ph/50Hz; 208-230V/1Ph/60Hz 7.5 NOTES: EACH HEATER BOX CAN ONLY BE USED FOR ONE AIR DISCHARGE DUCT. 1) FUW015/20/025 - ONLY ONE HEATER BOX IS REQUIRED. 2) FUW030/035/040/050 - NEED TO SELECT TWO BOX. 3
Specifications General data MODEL FUW015A FUW020A FUW025A FUW030A FUW035A FUW040A FUW050A NOMINAL AIR FLOW m 3 /h 1500 2000 2500 3000 3500 4000 5000 EXTERNAL TOTAL PRESSURE Pa 70 100 100 120 120 150 150 POWER SOURCE V/Ph/Hz 220-240/1/50 208-230/1/60 N O M I N A L CAPACITY WATER FLOW WATER PRESSURE DROP UNIT DIMENSION COOLING HEATING COOLING HEATING COOLING HEATING PACKING DIMENSION WEIGHT 4 ROWS(RETURN AIR) 6 10 12 16 18 23 29 4 ROWS(FRESH AIR) 19 27 31 40 47 57 70 6 ROWS(RETURN AIR) 10 15 17 22 26 31 37 6 ROWS(FRESH AIR) 25 34 39 49 61 70 84 kw 4 ROWS(RETURN AIR) 11 16 19 24 28 34 42 4 ROWS(FRESH AIR) 21 30 34 43 52 61 73 6 ROWS(RETURN AIR) 15 21 23 29 36 42 50 6 ROWS(FRESH AIR) 26 36 41 51 64 74 87 4 ROWS(RETURN AIR) 1.01 1.77 2.40 3.13 3.09 3.91 5.32 4 ROWS(FRESH AIR) 3.26 4.69 6.07 7.65 8.21 9.78 12.89 6 ROWS(RETURN AIR) 1.78 2.57 3.36 4.18 4.58 5.36 7.06 6 ROWS(FRESH AIR) 4.3 5.95 7.61 9.29 10.5 12.15 15.59 m 3 /h 4 ROWS(RETURN AIR) 0.96 1.38 1.80 2.27 2.42 2.91 3.83 4 ROWS(FRESH AIR) 1.85 2.57 3.26 4.07 4.47 5.28 6.83 6 ROWS(RETURN AIR) 1.27 1.78 2.28 2.79 3.14 3.64 4.69 6 ROWS(FRESH AIR) 2.30 3.14 3.98 4.84 5.52 6.36 8.10 4 ROWS(RETURN AIR) 5 14 24 14 13 25 40 4 ROWS(FRESH AIR) 39 40 46 32 36 46 74 6 ROWS(RETURN AIR) 14 27 54 21 44 45 75 6 ROWS(FRESH AIR) 77 89 96 76 79 103 113 kpa 4 ROWS(RETURN AIR) 4 12 10 9 11 19 24 4 ROWS(FRESH AIR) 20 26 24 26 20 31 67 6 ROWS(RETURN AIR) 12 24 24 12 32 30 32 6 ROWS(FRESH AIR) 42 49 62 56 53 68 70 LENGTH 750 910 1070 1220 1370 1520 1850 WIDTH 750 750 750 750 750 750 750 HEIGHT 420 420 420 420 420 420 420 mm LENGTH 950 1110 1270 1420 1570 1720 2050 WIDTH 1030 1030 1030 1030 1030 1030 1030 HEIGHT 580 580 580 580 580 580 580 4 ROWS 76 80 86 92 96 102 108 kg 6 ROWS 79 84 90 96 101 107 113 NOTES: 1) ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY THE MANUFACTURER WITHOUT PRIOR NOTICE. 2) THE ABOVE PARAMETERS ARE FOR STANDARD PRODUCTS ONLY. 3) STANDARD AIR RETURN COOLING CONDITIONS: 27 C DB/19.5 C WB; STANDARD FRESH AIR COOLING CONDITIONS: 34 C DB/28 C WB; STANDARD COOLING WATER ENTERING/LEAVING CONDITIONS: 7 C/12 C STANDARD AIR RETURN HEATING CONDITION: 21 C DB; STANDARD FRESH AIR HEATING CONDITION: 0 C DB; STANDARD HEATING WATER ENTERING/LEAVING CONDITIONS: 60 C/50 C 4) THE PARAMETERS IN THE ABOVE TABLE ARE MEASURED AT THE ALTITUDE OF 0M ABOVE SEA LEVEL, AND MAY VARY WITH THE ALTITUDE. 4
Components data MODEL FUW015A FUW020A FUW025A FUW030A FUW035A FUW040A FUW050A STRUCTURE TYPE TYPE Galvanized steel coated with elextrostatic spraying, internal glued with insulator PE Corrugated aluminum fin mechanically bonded with copper tube TUBE DIAMETER(mm) 9.53 COIL FPI 12 WORK PRESSURE(MPa) 1.6 INLET/OUTLET PIPE CONDENSING WATER PIPE TYPE/MATERIAL R1½ R¾ Centrifugal forward curved blower and galvanized steel FAN FAN NO. 1 2 DRIVE TYPE Direct drive AIR DISCHARGE TYPE Lower horizontal air discharge Single phase capacitor running MOTOR QUANTITY 1 2 INDEX OF PROTECTION(IP) IP20 INSULATION CLASS TYPE/MATERIAL B Primary nylon FILTER SIZE THICKNESS 21 HEIGHT mm 345 LENGTH 536 696 856 1006 1156 1306 1636 TYPE/MATERIAL Cold-rolled steel plate DRAIN PAN THICKNESS(mm) 1.0 INSULATION 5mm PE NOTES: ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY THE MANUFACTURER WITHOUT PRIOR NOTICE. 5
Sound data Unit ESP Speed 1/1 Octave Sound pressure level (db(a), ref 20μPa) 63 125 250 500 1k 2k 4k 8k Overall db(a) FUW015A FUW020A FUW025A FUW030A FUW035A FUW040A FUW050A 70Pa 100Pa 100Pa 120Pa 120Pa 150Pa 150Pa High 24 36 34 40 38 34 27 19 44.1 Medium 21 33 30 37 34 30 21 15 40.7 Low 19 31 27 34 30 27 17 14 37.7 High 28 43 43 43 46 41 33 27 50.6 Medium 27 41 41 41 42 38 30 23 48.0 Low 25 38 37 39 40 35 26 20 45.1 High 37 49 49 50 48 46 37 27 55.7 Medium 34 46 46 46 44 42 33 23 52.2 Low 28 45 40 42 39 36 28 18 48.4 High 29 45 46 46 46 40 33 25 52.5 Medium 27 43 46 44 43 37 29 21 50.5 Low 26 42 44 42 40 34 26 17 48.5 High 37 46 45 47 46 45 43 36 53.5 Medium 35 45 43 46 45 44 41 35 52.1 Low 33 43 41 44 43 42 40 33 50.2 High 30 45 44 48 49 44 35 27 53.6 Medium 29 43 42 46 47 41 32 24 51.5 Low 27 43 40 45 43 38 29 21 49.5 High 35 49 49 50 52 48 40 33 57.0 Medium 34 49 48 49 51 47 39 32 56.0 Low 31 49 47 48 49 45 37 30 54.9 NOTE: SOUND PRESSURE LEVELS ARE TESTED IN BAFFLE CHAMBER, WITH BACKGROUND NOISE LEVEL: 11.5 db(a), MICROPHONE POSITION IS 1 METER IN FRONT AND 1 METER BELOW THE UNIT. 6
Performance correction coefficient Cooling capacity performance curve The above curve shows the cooling capacity variations at different entering water temperatures. Standard return air: 27ºC DB/19.5ºC WB; Temperature difference between entering and leaving water: 5ºC The cooling capacity correction factors are based on the cooling capacity (using 1 as the coefficient) in standard cooling water entering/ leaving conditions (7ºC for entering water/12ºc for leaving water). The above curve shows the cooling capacity variations at different entering water temperatures. Standard return air: 34ºC DB/28ºC WB; Temperature difference between entering and leaving water: 5ºC The cooling capacity correction factors are based on the cooling capacity (using 1 as the coefficient) in standard cooling water entering/ leaving conditions (7ºC for entering water/12ºc for leaving water). Heating capacity performance curve The above curve shows the heating capacity variations at different entering water temperatures. Standard return air: 21ºC DB; Temperature difference between entering and leaving water: 10ºC. The heating capacity correction factors are based on the heating capacity (using 1 as the coefficient) in standard cooling water entering/ leaving conditions (60ºC for entering water/50ºc for leaving water). The above curve shows the heating capacity variations at different entering water temperatures. Standard return air: 0ºC DB; Temperature difference between entering and leaving water: 10ºC The heating capacity correction factors are based on the heating capacity (using 1 as the coefficient) in standard cooling water entering/ leaving conditions (60ºC for entering water/50ºc for leaving water). NOTES: 1) THE BLACK CURVE SHOWS THE CAPACITY OF A 4-ROW-COIL UNIT AND THE GRAY CURVE THE CAPACITY OF A 6-ROW-COIL UNIT. 2) COMPARED WITH THE COEFFICIENT (SET TO 1) OF THE UNIT IN STANDARD OPERATING CONDITIONS (ENTERING WATER AT 60ºC, AND LEAVING WATER AT 50ºC), THE VARIATION COEFFICIENT VARIES AS FOLLOWS WHEN THE ENTERING WATER TEMPERATURE RETAINS AT 45ºC AND THE LEAVING WATER TEMPERATURE AT 40ºC: STANDARD AIR RETURN CONDITION: 0.65 FOR A 4-ROW-COIL UNIT AND 0.64 FOR A 6-ROW-COIL UNIT; STANDARD FRESH AIR CONDITION: 0.8 FOR A 4-ROW-COIL UNIT AND 0.78 FOR A 6-ROW-COIL UNIT. 7
Outlines and dimensions FUW015A, FUW020A, FUW025A Model Unit: mm Dimensions A B C D FUW015A 750 540 238 667 FUW020A 910 700 318 827 FUW025A 1070 860 398 987 FUW030A, FUW035A, FUW040A, FUW050A Model Unit: mm Dimension A B C D E FUW030A 1220 1010 268 176 1137 FUW035A 1370 1160 323 216 1287 FUW040A 1520 1310 333 346 1437 FUW050A 1850 1640 398 546 1767 8
Electric Box Scheme of Electric Box Installation Electrical Heater Flexile Pipe Connection FUW Unit NOTE: THE FLEXIBLE PIPE CONNECTION NEEDS FIELD SUPPLIED. 9
Electrical data MODEL FUW015A FUW020A FUW025A FUW030A FUW035A FUW040A FUW050A POWER SOURCE TYPE INSULATION CLASS PROTECTION CLASS 220-240V/1Ph/50Hz Asynchronous single phase B IP20 MOTOR RATED INPUT POWER 4 ROWS 373 614 787 797 905 1248 1533 W 6 ROWS 397 653 823 845 1016 1362 1699 RATED INPUT CURRENT 4 ROWS 1.72 2.96 3.61 3.62 4.22 5.68 6.98 A 6 ROWS 1.81 3.01 3.78 3.96 5.10 6.29 7.86 NOTES: 1) ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY THE MANUFACTURER WITHOUT PRIOR NOTICE. 2) ALL DATA ARE BASED ON HIGH SPEED,STANDARD ESP. MODEL FUW015A FUW020A FUW025A FUW030A FUW035A FUW040A FUW050A POWER SOURCE TYPE INSULATION CLASS PROTECTION CLASS 208-230V/1Ph/60Hz Asynchronous single phase B IP20 MOTOR RATED INPUT POWER 4 ROWS 279 387 945 619 733 1584 2063 W 6 ROWS 273 445 1137 681 1222 1607 2134 RATED INPUT CURRENT 4 ROWS 1.28 1.79 4.35 2.83 3.41 7.59 9.55 A 6 ROWS 1.25 2.03 5.29 3.19 5.97 7.73 9.89 NOTES: 1) ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY THE MANUFACTURER WITHOUT PRIOR NOTICE. 2) ALL DATA ARE BASED ON HIGH SPEED,STANDARD ESP. 10
Wiring diagrams FUW015A, FUW020A, FUW025A MODEL: FUW015A/020A/025A HF MF M~ LF N FUW030A, FUW035A, FUW040A, FUW050A MODEL: FUW030A/035A/040A/050A HF MF M~ LF N M~ 11
WIRING OF ELE-HEATER 12
Installation Important Notice Installation and maintenance are to be performed only by technicians who are familiar with local rules and regulations, and experienced with this type of equipment. Make sure that the rated voltage of the power supply conforms to the voltage stated on the unit nameplate. Cut off all power supplies before mounting or maintaining the unit. Electric connections must conform to local laws and regulations. The voltage should fluctuate within the range of ± 10% of the rated voltage. The unit must be well earthed to prevent insulation failures. All the wires must be securely connected. The design of water pipes and ducts must conform to the specifications of heating, ventilation and air conditioning norms and regulations. Mounting Location Make sure it s convenient to connect wires and pipes in the selected mounting location. The minimum space reserved around FUW units is shown in Figure 1. Figure 1 13
Suspending Installation During suspending installation, please handle the unit or packing case with care, to avoid damage to any part. Before leaving the factory, the unit or its packing case already has forklift handling holes or hoisting holes. During the hoisting, the lifting poles should be strong enough to bear the unit weight. Please handle the FUW unit as shown in Figure 2. Storage When a unit is placed outdoors before it is installed in an equipment room, please protect it from dirt, rain, snow and even animals. Be sure not to damage the protective film on its surface. Base Setup Figure 2 Adjust the base level. The base, if not on a level surface, may result in water leakage or break the dynamic balance of the fan due to poor drainage of condensing water, or cause the bearing malfunction or vibrate. The base height should match the U-shaped pipe bend. The drain pipe should be connected with the U-shaped water seal, as shown in Figure 3. TRAP INSTALLATION DRAIN PIPE H NOT MORE THAN 1/2H DRAIN PLUG H is more than the negative pressure of unit + 20 mm 1mm H2O = 9.8 Pa Figure 3 14
Service and maintenance Notices Responsibilities and Obligations This product comes to you with the DAIKIN service warranty. Only DAIKIN technicians or experienced technicians authorized by DAIKIN are allowed to install, test or maintain these products. Use the Unit After installing the piping system, please first flush the pipes. To do so, be sure to shut off the valve connected to the unit, to prevent contamination in the pipes from entering the coils or blocking the loop. After the installation, please check there is anything sundries inside the fan. Turn the blades by hand. If no unusual noise is heard, turn on the fan, to see if it is running properly. Before turning on the water flow, please open the exhaust valve to let the air out of the pipe till water flows from the pipe. When the unit stops running, fill the coil with water or by other means to prevent pipe corrosion. When the environment temperature falls below 0 C in the winter, drain the pipe to prevent it from freezing. Clean the coils at regular intervals, to remove the dust from the coils. Clean the scale inside the coils every 2 or 3 years. If possible, please use soft water in the coils. Check the unit filter for dust regularly; if possible, please use a pressure difference gauge. Once the resistance reaches the limit, wash or replace the filter media in time. After the unit runs for a week, please readjust the V-belt. Afterwards, check the belt every three months. Service and Maintenance A good maintenance schedule helps reduce operational failures. A dirty filter may worsen the performance and air flow of the unit. Thus, replace or wash the filter in time. Be sure to check the filter every month to see if it is clean enough. Wash the coils with compressed air or water. Brush the coil surface gently with a soft brush or use a vacuum cleaner to clean the dust. Do the following on a regular basis: Clean up the fans every 6 months, to keep them in good balance. Check and clean the drain pan. Check the drain pipe in case dust or sundries block the pipes. Clean the dirt in the water coils at regular intervals. 15
Trouble shooting Common failures Abnormal sound Fan operates normally but the air flow is insufficient Location Possible causes Solutions 1. Blower Blower offset Loose bearing due to big gap Blower is loose Blower is damaged The fastening fan screw is loose There are sundries inside fans Contact the dealer Contact the dealer Contact the dealer Contact the dealer Fasten the screw Remove sundries 2. Drive The screw fixing the motor to the motor base is loose Fasten the screw 3. Fan housing 4. Electric appliances 5. Shaft 6. Air speed is too high 7. Periodical vibration 8. Noise caused by hi-speed wind passing the gap & holes 9. When blocked, the high-speed air rattles or howls There are sundries inside housing Housing is loose Air intake housing is damaged Remove sundries Contact the dealer Contact the dealer Incoming wire is loose Fasten the incoming wire Motor gives AC hum Bent or distorted Balance weight is loose Shaft is loose Duct is too small Static pressure doesn't reach the designed ESP value Duct is too small System is unstable Duct vibrates as the fan pulsates Duct leaks Duct bends abruptly Duct expands sharply Duct shrinks sharply Air speed is too high inside duct Anti-vibration joint is too high Contact the dealer Replace shaft Fasten the balance weight Fasten shaft Re-design the duct Use the lower fan speed. Re-design the duct Adjust the system Adjust the fan speed Seal it with glue Re-design duct Re-design duct Re-design duct Re-design duct Re-adjust the damping connector 1. Fan Blower is mounted incorrectly Contact the dealer. 2. Duct system Actual resistance exceeds the designed value. Duct is poorly sealed Fireproof damper is shut off Re-design the system Seal it with glue Turn on the fireproof damper 3. Filter Too dirty or blocked Clean or replace the filter 4. Coil Too dirty or blocked Clean coils 5. Air flow is short-circuited. The fan is functioning 1. System but the air supply is too large 6. Fan inlet is blocked 7. No straight tube at the fan air outlet 8. There are sundries inside fan system The air inlet and air outlet are not properly isolated. Thus, the air runs directly to the air inlet Elbow at the air return area fan outlet are too close to the unit wallboard The fan outlet is blocked Add air separator Move the fan Remove the obstructions A length of straight tube is mounted at the fan outlet during fan testing. Without straight tube, the fan performance might be worsened. Thus, the fan may run faster to overcome the resistance Install straight tube (check the fan speed) The fan outlet is blocked There is an elbow tube at the fan outlet Improper duct size The access door is open The system is not well balanced and the actual resistance is lower than the set resistance No air damper or air damper blade Filter falls off or no filter installed Remove the obstructions Re-design duct Re-design Close the access door Re-design the system Install air damper or air damper blade. Re-mount the filter 2. Duct Return duct leaks Seal with glue 1. Filter Filter is too dirty or blocked Clean or replace filter The air in the airconditioned room is 2. Fresh air No enough fresh air Supply more fresh air not fresh enough 16
The air conditioners manufactured by Daikin Industries have received ISO 9001 series certification for quality assurance. Certificate Number. 9601019 The airconditioning factories of Daikin Industries have received environmental management system standard ISO 14001 certification. Certificate Number. EMS80362 Cautions on product corrosion 1. The units should not be installed in areas where corrosive gases, such as acid gas or alkaline gas, are produced. 2. If the unit is to be installed close to the sea shore, direct exposure to the sea breeze should be avoided. If you need to install the unit close to the sea shore, contact your local distributor. DAIKIN INDUSTRIES, LTD. Head Office: Umeda Center Bldg., 2-4-12, Nakazaki-Nishi, Kita-ku, Osaka, 530-8323 Japan Tokyo Office: JR Shinagawa East Bldg., 2-18-1, Konan, Minato-ku, Tokyo, 108-0075 Japan http://www.daikin.com/global_ac/ All rights reserved Printed with soy ink. Literature No.: ED-FUW-1405A