Energy-Recovery Ventilation System Service Manual( GC201110-I ) Energy-Recovery Ventilation System Service Manual Contents PRODUCT ................................................................................................ 2 1 MODELS LIST .....................................................................................................2 2 NOMENCLATURE................................................................................................2 3 FEATURES...........................................................................................................2 4 PRODUCT DATA..................................................................................................3 5 PIPING DIAGRAM................................................................................................5 CONTROL................................................................................................. 7 1 OPERATION FLOWCHART.................................................................................7 2 MAIN LOGIC........................................................................................................8 3 WIRED REMOTE CONTROLLER........................................................................9 INSTALLATION....................................................................................... 18 1 DIMENSION DATA ............................................................................................18 2 INSTALLATION SITE ........................................................................................19 3 UNIT INSTALL....................................................................................................19 4 CAUTIONS FOR INSTALLATION .....................................................................20 5 ELECTRIC WIRING WORK...............................................................................21 MAINTENANCE...................................................................................... 24 1 TROUBLE TABLE .............................................................................................24 2 FLOW CHART OF TROUBLE SHOOTING ......................................................25 3 WIRING DIADRAM ............................................................................................26 4 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS................28 5 EXPLODED VIEWS AND PART LIST................................................................30 II Energy-Recovery Ventilation System Service Manual PRODUCT 1 PRODUCT Energy-Recovery Ventilation System Service Manual PRODUCT 1 MODELS LIST 1.1 Outdoor Unit Model Code Air Flow(m3/h) H FHBQ-D3.5-K EH01100010 M L H FHBQ-D5-K EH01100020 M L H FHBQ-D8-K EH01100030 M L H FHBQ-D10-K EH01100040 M L FHBQ-D15-M FHBQ-D20-M FHBQ-D30-M EH01100050 EH01100060 EH01100070 350 260 210 500 380 300 800 600 480 1000 750 600 1500 2000 3000 External Static Pressure (Pa) H M L H M L H M L H M L 150 150 220 100 80 60 100 80 60 110 85 65 110 85 65 380V3N~ 50Hz 380V3N~ 50Hz 380V3N~ 50Hz 220V 50Hz~ Power Supply Appearance 2 NOMENCLATURE FH 1 B 2 Q 3 D 4 3.5 5 K 6 NO. 1 2 3 4 5 6 Description The symbol of energy recovery ventilation The structure of heat exchanger The diathermanous mode The mode of installation Nominal Air Flow The phase of power supply Options / board Total heat exchange Celling mounted type 3.5:350m3/h;5:500 m3/h; …… ;30:3000 m3/h K: single-phase; M:three- phase 3 FEATURES 3.1 Description Our living environments are more and more affected by modern civilization. As the application of airconditioning system and various composite materials, popularization of office equipments and development of closeness of constructions and for the purpose of energy saving and reduction of cost which cause decrease of fresh air volume, harmful gas and pollution of creature won’t be diluted properly and replaced. Healthy, energysaving, simple and reliable fresh-air system and equipment has been the focus for engineers and users. Gree energy recovery ventilation system has solved this problem. This kind of system has two-way air exchange function so that the change of indoor temp is little during air exchange. The indoor air can be efficiently filtered by the air filter. New technology and new materials and special technique applied in the unit can ensure low energy consumption, great performance ,low noise and easy installation. PRODUCT 2 0 220~240V~1Ph50Hz 440 46 832X1016X380 1087X1320X400 57 66. Low-noise Design Special low-noise ventilation fan is set.5 40 59 67 Z5N15 360-260-210 100-80-60 71-73-75 65-67-68 61-63-65 3 1. 2. Energy-recovery rate above 70% keeps heat preservation and ventilation realized. Various Series and Multiple Specifications There are various series to match with the buildings of various structures. Air Filtration and Purge Function Internal air filter keeps the fresh air introduced into room pure and dustless.5-K EH01100010 m /h Pa % % % 3 FHBQ-D5-K EH01100020 500-380-300 100-80-60 68-70-72 62-64-65 57-59-61 3 1.0 220~240V~1Ph50Hz 165 37 800X879X306 1050X1165X315 45 53 63 147 168 Z5N15 3 PRODUCT .2 Standard Features 1.5 40 85 104 Z5N15 FHBQ-D10-K EH01100040 1000-750-600 110-85-65 75-77-79 66-68-70 62-64-65 3 1.0 220~240V~1Ph50Hz 400 45 832X1016X380 1087X1320X400 57 66. 4 PRODUCT DATA 4. 5.0 220~240V~1Ph50Hz 262 39 800X879X306 1050X1165X315 45 53 63 147 168 Z5N15 FHBQ-D8-K EH01100030 800-600-480 110-85-65 70-72-74 63-65-67 60-62-64 3 1. 4. Energy-recovery Function Internal heat exchanger makes the discharged air and introduced air for cooling and heating exchange. Replacement and Ventilation Function It introduces fresh air into room and discharges indoor airout of room to make you feel comfortable as in the nature. 3. Weight Gross weight W dB(A) mm mm kg kg 20'GP Loading quantity 40'GP 40'HQ Standard wired remote controller mm 2 FHBQ-D3.Energy-Recovery Ventilation System Service Manual 3.1 Product Data at Rated Condition Model Code Air flow Volume External Statics Pressure Temperature exchange efficiency Enthalpy exchange Heating efficiency Enthalpy exchange Cooling efficiency Recommended wiring H-M-L H-M-L H-M-L H-M-L H-M-L Quantity Area Power Supply Power Input Sound Pressure level Outline Dimension (W X D X H) Package Dimension (WX D X H) Net. Weight Gross weight W dB(A) mm mm kg kg 20'GP Loading quantity 40'GP 40'HQ Standard wired remote controller mm 2 FHBQ-D15-M EH01100050 m /h Pa % % % 3 FHBQ-D20-M EH01100060 2000 150 71 62 58 5 1. PRODUCT 4 . 2. The models of 220v power supply type has 3types of fan speed and the models of 380V have one fan speed. outdoor temperature 35℃ DB.relevate humidity less than 80％ RH. Outdoor air temperature: 5 ℃ DB.5m distance. 2℃ WB.Energy-Recovery Ventilation System Service Manual Model Code Air flow Volume External Statics Pressure Temperature exchange efficiency Enthalpy exchange Heating efficiency Enthalpy exchange Cooling efficiency Recommended wiring H-M-L H-M-L H-M-L H-M-L H-M-L Quantity Area Power Supply Power Input Sound Pressure level Outline Dimension (W X D X H) Package Dimension (WX D X H) Net. Operation condition:ambient temperature-15℃ -50℃ . The temperature exchange efficiency and enthalpy exchange efficiency are tested under these testing conditions as below: (1) Cooling efficiency:Indoor air 27 ℃ DB. Sound power level according to ISO 5151-sound pressure calculated at 1.5 380~415V 3N~50Hz 950 50 1210X1215X452 1550X1540X470 100 115 15 37 44 Z5N15 FHBQ-D30-M EH01100070 3000 220 70 62 58 5 1. 4.5 380~415V 3N~50Hz 2800 54 1340X1550X572 1710X1610X700 240 280 9 24 24 N/A 1500 150 73 65 60 5 1.13℃ WB.5℃ WB. 28℃ WB.5 380~415V 3N~50Hz 600 48 1210X1215X452 1550X1540X470 100 115 15 37 44 Z5N15 Note: 1. 3. (2) Heating efficiency:21 ℃ DB. 19. 2A×2 Max. Fuse Breaker Size Amperes 2. RLA:Rated load amperes . Disconnect Size Amperes 1.25A 3.Hz FHBQ-D3. 5 PIPING DIAGRAM Outdoor Air discharge Indoor Air supply Heat exchanger Fresh air Room air 5 PRODUCT .71A 1.71A 2.76A×2 0.5-K FHBQ-D5-K FHBQ-D8-K FHBQ-D10-K FHBQ-D15-M FHBQ-D20-M FHBQ-D30-M 380V 3N~50Hz 220V~50Hz Model Fan Motor FLA Each 0.25A 2.Ph.2 Electrical Data Power Supply V. FLA:Full load current . LRA:Locked rotor amperes .55A 13.25A 3.25A 4.0A×2 1.4A×2 4.76A×2 1.0A×2 1.55A 4.15A 9.65A Min. 2.45A Notes: 1.4A×2 1.47A 2.Energy-Recovery Ventilation System Service Manual 4. 3.47A 3.15A 3. Energy-Recovery Ventilation System Service Manual CONTROL CONTROL 6 . Humidity sensor error display L 1 Judge running mode? 1 Auto mode By Pass mode Heat Exchange mode 7 CONTROL .Energy-Recovery Ventilation System Service Manual CONTROL 1 OPERATION FLOWCHART Bengin Initialize Air valve checked OK N L0 Error Y Air valve interface with electricity? N Y Energy-saving function on Y Energy-saving on N Timer function on Y Timer on N Cleaning Y Remind until the time setting come N Humidifying function on? Y Stop or move according to the opposite humidity. the air discharge fan and air supply fan will operate according to setting fan speed. The air discharge fan and air supply fan will stop if the air valve is open. CONTROL 8 . or they will operate according to setting fan speed .1 Auto mode Detect the temperature indoor and outdoor for durative a period of time. The system will operate as such request: If the air valve is close.2 By Pass mode 1. 1. air valve is open.3 Heat Exchange mode 1. Under By pass mode. The system will operate as such request: Electrify the air valve motor. the air valve is close 2. judge the position of the air valve. 2. 3. 2. When the air valve is open . The system will operate under heat exchange mode according to temperature and temperature difference between room and outdoors is large in transient season. The system will operate under by pass mode according to temperature and temperature difference between room and outdoors is little in transient season. the air discharge fan and air supply fan will stop. Under Heat Exchange mode. The system will operate according to the primary mode before the system was off.Energy-Recovery Ventilation System Service Manual 2 MAIN LOGIC 2. the fan will operate according to setting fan speed . The system will operate as such request: By Pass air valve closes. The system will operate as such request: By Pass air valve opens. 2. the air discharge fan and air supply fan will operate according to setting fan speed. 2. Fig.discharge and supply) Fan speed display (high. Press ON/OFF button once again to stop the unit. (Fig.2 9 CONTROL .1 Operation View Fig. by-pass. mid.2) 2.Energy-Recovery Ventilation System Service Manual 3 WIRED REMOTE CONTROLLER 3. Press ON/OFF button to start the unit. heat exchange) Error status display 9 10 11 12 13 14 15 16 Cleaning status of filter display Mode button Setting humidity increase button Setting humidity decrease button Fan speed button Reset/Switch button Timer button On/Off button 1) Turn On / Off the Unit 1. low) Mode(auto.1 Front panel of wired controller Constitution of wired controller 1 2 3 4 5 6 7 8 Timer display Energy-saving status display Setting humidity display Ambient humidity display Air exchange mode (half-half air exchange . With each press of FAN button.3 2. with each press of FAN button. the temperature will increase or decrease by 5%.4 If there is humidifying function in the unit.4). press humidify button: ▲: Used to increase setting humidity. the same as below) 1. During half-half air exchange. During air discharge and air supply. Fig.5) Fig.5 Note: Lock function: Pressing ▲ and ▼simultaneously for 5s. ▼: Used to decrease setting humidity. Once press of this button. the fan speed will change in the following order(Fig.4)(The figureis about relative display area .3): Fig. Low High 3) Humidity Adjustment (Fig. the fan speed with switch between high speed and low peed(Fig. the place of setting humidity will display EE CONTROL 10 .Energy-Recovery Ventilation System Service Manual 2) Fan Speed Control (Fig.3. 2. so the system will operate according to temperature and temperature difference between room and outdoors.6 will be shielded. the letter of Auto will light. When long-distance monitoring or centralized control shield displayed. 5) Running Mode Setting (Fig. and CC will be displayed in the place of setting humidity. the letter of Heat Exchangewill light. the total heat exchange of temperature and humidity can be realized along with exchange of fresh air.7) Fig. which is energy saving and healthy. Under By pass mode. the signals of buttons and from remote controller will be shielded. After shutdown of air valve. 11 CONTROL . Setting range of humidity: 40%~60%RH. long press Reset/ Switch button for 5s to clear operation time and icon. Make this mode operate in transient season to prolong service life of the core of heat exchanger. Under Auto mode. 4) Reset/ Switch Function Setting ( Fig.6) Not having pressed Timer button. the fan will operate according to setting fan mode and fan speed.Energy saving stop setting and Clear time setting. Energy saving startup setting. the letter of By Pass will light. 3. And then press ▲ and ▼ simultaneously for 5s to release Lock Function. so the fan will operate according to setting Fan mode and fan speed. Each press of this button. the operation mode will change as follow. 4. ♦♦ After pressing of Timer button: Under On status of the unit: Short press Reset/ Switch button to switch among Timer off setting.6 1.Energy-Recovery Ventilation System Service Manual and all response to the buttons Fig. Under Heat Exchange mode. Under this mode. 2. It is recommended to ON in dry period.Energy-Recovery Ventilation System Service Manual 6) Timer Setting(Fig.5-24hr. Repress Timer button to make the timer valid and the timing will be Fig. The setting range of Timer on/off is 0. timer off.In this case. In off status of the unit. 6. 4. The time interval is 0. press theTimer button to cancel it. energy-saving on and energy – saving off and air clear can be set. TIMER. 3.Hr and OFF will flash). The setting range of Energy Saving Off is 1-4hr and the default is 1hr. The setting range of Timer Clear is 1250hr. Timer.8 7) Ambient Temp Display Under normal state. The setting range of Energy Saving On is 2-5hr and the default is 2hr. Notice: The humidifying function with the unit can be valid after it is started.8) Fig.The default is 1250hr.7 1. Press Timer button into timer setting status. The indoor humidity and setting humidity can be displayed only If this function is on.during timer off setting.9 calculated after that. the energy saving function can operate. 8) Humidifying ON/OFF Display Press MODE and ▼at the same time for 5s to switch between humidifying ON/OFF. 7. 2500hr and 00000. the user can press ▲or ▼to increase or decrease setting time. Fig.5 hr. CONTROL 12 .Hr and letters corresponding setting will blink. (Note: press FAN and ▼ at the same time for 5s only after energy saving timer setting. The default is OFF. Note:The unit with humidifying function can normally run. timer on can be set and in on status. When the unit is under timer state. The fittings are optional.g. only indoor ambient humidity is display at ENV. 5. (E. Energy Saving will be displayed. 10) Energy Saving Mode Display Press FAN and ▼ at the same time for 5s to switch between energy saving on/off. Refer to Fig. discharge and supply. plus pressure is needed in the room. Refer to Fig. 3. Half-half air exchange is for normal station.2 for details.2 for details. energy saving mode can be adopted to meet the demands of both function of fresh air exchange and quality of indoor air by users. E.g.Energy-Recovery Ventilation System Service Manual 9) Fan Mode Display Press FAN and ▲ at the same time for 5s to switch among half-half air exchange.3 Dimension 6 Panel Dimension and Installation Dimension 13 CONTROL . If under energy saving on state. If the unit needn’t operate for a long time. fan mode can be adopted and if negative pressure is needed. air discharge mode can be adopted. The fan mode is selected by the users. If in hidden. Note: During installation of underplate of wired controller. Name Remarks CONTROL 14 . Insert communication wire in the control board. drill two holes (keep level) in the wall as the distance (60mm ) between the two holes in underplate of wired controller. and then reserve a groove or hole for embedding of communication wire according to its dimension. clasp the controller panel.Energy-Recovery Ventilation System Service Manual Bottom Panel Dimension and Installation Dimension 3. 3. The side with 2 breaches must be kept downwards. If wired controller and indoor communication wire are mounted visibly. At last. Whether mounted visibly or in hidden. 1 ＃ PVC pipe can be used. and then inset stopper into the holes through which the wired controller can be fixed. pay attention to its direction. Locate the installation position firstly.4 Installation 1. 2. PVC pipe No. 1 ＃ PVC pipe can be used and corresponding grooves should be set in the wall. Energy-Recovery Ventilation System Service Manual 1 2 3 4 Wall Underplate of wire controller Screw M4X10 Controller panel The appearance of the controller should be subject to entity. We must not tear down the panel in these wrong ways as: From above From below From right From left When you want to check the panel .you need use a screwdriver to tear down it like this: 15 CONTROL . the same to the other side.Energy-Recovery Ventilation System Service Manual Insert this position with a screwdriver Screwdriver Clip button ① Circumrotate the screwdriver clockwise or anticlockwise. ② ③ ④ ⑤ Pull the display board to make the clip break off. ⑥ Display board and Bottom panel are separate absolutely. 16 . Energy-Recovery Ventilation System Service Manual INSTALLATION 17 . Energy-Recovery Ventilation System Service Manual INSTALLATION 1 DIMENSION DATA Fresh air outlet Fresh air intlet Room air inlet Room air outlet Uint: mm Model FHBQ-D3.5-K FHBQ-D5-K FHBQ-D8-K FHBQ-D10-K FHBQ-D15-M FHBQ-D20-M A 879 879 1016 1016 1215 1215 A1 823 823 960 960 1159 1159 B 800 800 832 832 1210 1210 B1 852 852 884 884 1262 1262 C 306 306 380 380 452 452 C1 125 125 165 165 200 200 D 90 90 90 90 100 100 E 125 125 150 150 190 190 F 175 175 230 230 277 277 G 136 136 155 155 178 178 H 416 416 372 372 737 737 N 197 197 246 246 297 297 L W electric box H H1 L1 W2 fresh air inlet room air inlet flange dimention B1 B2 room air outlet W1 B fresh air outlet A2 A A3 A1 Uint: mm Model FHBQ-D30-M L 1550 L1 1650 W 1340 W1 1310 W2 670 H 572 H1 249 A 346 A1 386 A2 180 A3 366 B 332 B1 372 B2 352 18 . . as shown in the fig.Energy-Recovery Ventilation System Service Manual 2 INSTALLATION SITE Roomair outlet Fresh air inlet Service space During installation. and the ones inside the room should also be installed with them if temperature and humidity in the ceiling is high. In order to clean and maintain the filter and heat exchanger core in the system. The ducts outside the room should be kept inclined 1/50~1/30 to avoid water into room. Fresh air outlet Room air inlet 3 UNIT INSTALL Fresh air duct Air discharge duct Fresh air inlet Room air outlet Insulation materia Exhanst air duct Room air inlet Indoor air return Indoor air supply Fresh air outlet 19 . do keep service space. the two ducts (fresh air inlet and indoor air outlet) outside the room must be installed with anti-condensate and heat insulating materials. the distance between them should not exceed 4m and the built-in fittings of each vertical duct should be more than 2 pieces. Arm bracket or inclined bracket is applicable for vetical duct against wall or pole and anchor ear bracket for that far from wall or pole . Pole bracket or inclined bracket is applicable for horizontal duct against wall or pole and support bracket for that far from wall or pole. The hanger can not be directly fixed at flange. hanger and hanger for equipment should be coated with anticorrosion paint. The sundries and filth in or on the duct and fittings should be cleaned before installation. inflammable or explosive gas or liquid in the duct. The duct flange. If there is no design specification. If the later one is adopted. connecting thread of either end should be longer than diameter of hanger.Energy-Recovery Ventilation System Service Manual A A-A inner steer bar A 16hanger ceiling air return window room air inletf diffused set resh air outle t outdoor indoor air duct muffler room air outle t fresh air inle t air duct muffler examine and repair inle t 4 CAUTIONS FOR INSTALLATION 1. The floor plate and wall which the duct passes should be repaired after construction.If the duct is installed vertically. The holes on the external wall should be kept 2/100 gradient at level direction (the internal is higher) to avoid rainwater into the room.The vertical pipe outside the room or on the roof should be fixed with derrick or dragline. a. 4. external surface should be level and indeformable and adjustment should be flexible. Strip hanger is applicable for the duct with diameter or length of side below 400mm. The frame and decorative surface should be solid. moreover. setting nail or expansion bolt for bracket or hanger should be placed correctly and firmly . 2. 20 . lapping joint is applicable and its length should be 6 times longer than diameter of hanger at least at two sides. Never lay wires. anti-loosing measure should be made. The construction of bracket or hanger of the duct should accord with the following specifications: 1) The build-in fitting. 4) The holes on the bracket and hanger should be drilled mechanically and not with gas cutting. The distance between horizontal duct bracket and hanger can not exceed 4m. b. Installation of duct and connection between air vent and duct should be firm. 3. 3) The hanger’s rod should be flat and its screw thread should be full and smooth. If the former one is adopted. 8. 6. 2) The layout of the bracket or hanger should accord with design specifications. The bracket and hanger can not set at air vent. The dismountable ports and adjustable parts of duct and fittings can not be installed in the wall or floorslab. Either threaded connection or welding is suitable for joint of hangers. valve or service door. 5. following specifications will apply.The inlet part should be free of oil soil and painting. 7. cables and pipes with toxic. Reliable earthing measure must be adopted. 5. sensor signal Transformer 21 . 6. 4. 8. Replace the broken power cord or connecting wire with special cable. The air switch should integrate the functions of magnetic release and hot release to protect it for short circuit or overload. Power supply must be reliably earthed. b. d. Place which specialist considers unreliable.2 Electric Wiring Design One phase units 220V~ Terminal board Aire vavle Reactive Signal In-phase Motor Main Board Wire controller Temp. 5. The earthing wire should be reliably connected with special earthing device and be performs by professionals.1 Wiring Principle ♦♦ Layout of Wires 1. The power supply should be reliable to prevent terminals from being stressed. All of the electric installation must be performed by professionals according to local laws and regulations and instructions. 7. 2. The field wiring should be subject to circuit diagram attache d on the unit. The earthing wire can not connect with: a. The power supply must be with rated voltage and special for AC. 3.Energy-Recovery Ventilation System Service Manual 5 ELECTRIC WIRING WORK 5. The line width of power cord must be large enough. c. 2. Air switch and leakage switch which can cut off the general power supply should be installed. Layout of wires should accord with national wiring criteria. Gas pipe. ♦♦ Earthing Requirements 1. Earthing resistance should be accord with the criteria.Tap water pipe. 3. Never pull the power cord forcibly. The yellow green earthing wire with the only use never can be cut off and fixed with tapping screws to avoid electric shock. Blowing tube. 0 1.0 1.50Hz 220V~.0 1.0 1.50Hz 380V 3N~.0 1.0 1.50Hz Capacity of air switch (A) 6 6 6 6 6 6 6 Min. b.0 1.3 Specification of Power Supply Wire and Air Switch Applied models FHBQ-D3.5-K FHBQ-D5-K FHBQ-D8-K FHBQ-D10-K FHBQ-D15-M FHBQ-D20-M FHBQ-D30-M Power supply 220V~. Increase the sectional area of power cord above 15 meters to avoid overload.Energy-Recovery Ventilation System Service Manual Three phase Units 380V 3N~ Terminal board Contactor loop 2 AC contactor 1 AC contactor 2 Contactor loop 1 Fan motor heat relay Fan motor heat relay Wire controller 5.50Hz 380V 3N~.0 1.50Hz 220V~.0 1.0 1.0 Note: a.sectional area of earthing wire (mm2) 1.0 Min. The power cord of the unit must be copper cored cable.50Hz 220V~. 22 .50Hz 380V 3N~. and working temp can not exceed specified value.0 1. sectional area of power cord (mm2) 1.0 1. Energy-Recovery Ventilation System Service Manual MAINTENANCE 23 . Re-insert and connect transformer terminals. the unit can be normally used by the user. 2. Te r m i n a l s o f m a i n b o a r d transformer are loose. Humidity sensor is not connected or communication is in trouble. If any fault occurs. Re-fix the collecting place of air vent. 24 . Noise occurs at air vent. Repair the power supply and check power cord according to circuit diagram on the unit. Solutions 1 Re-fix the collecting place of air vent. No power supply or power cord is incorrectly connected. Something is wrong with temp sensor or the temperature is overstep the range of the temp sensor. Repair the power supply and check power cord according . 2 Installation of air vent is loose. 1. Possible causes Too much dust gathers on the air filter. Outdoor temp sensor error. Air valve and relative fittings are faulted(L0). The centralized controller of air valve of main board is not connected(L0). 2.with live line or pinboard of air valve. No power supply or power cord is incorrectly connected. Connect CONTROPL port of main board. Check the connecting line between operational box and main unit. remove it firstly by yourself according to the following table before you contact us. Control wire is not or incorrectly connected. Fault Diagnose After debugging and trial run. Check the connecting wire between displayer and main board. Communication fault (E6). Check power and power supply 2. By-pass door and drive structure of the unit loose. 3 The system can not be started 4 There is not air from indoor or outdoor vent after opening the switch. No. Air valve and relevant fitting error or wrong connection of centralized control wiring of air valve. Indoor temp sensor error. Error Code E6 F0 L1 F3 L0 Logic Communication between the main board and the wire remote controller is in trouble. Phenomenon Airflow volume at air outlet/ inlet is obviously decreased after a period of time.Energy-Recovery Ventilation System Service Manual MAINTENANCE 1 TROUBLE TABLE Error Communication error. Check by-pass door and drive structure of the unit and fix it. 1. Something is wrong with temp sensor or the temperature is overstep the range of the temp sensor. Humidity sensor error. Energy-Recovery Ventilation System Service Manual 2 FLOW CHART OF TROUBLE SHOOTING Fan stops opperating Wired remote controller display normally? Power on ? N Maintain and Power the unit on Y Error Code dispalyed? Y The transfirmer is normal ? N Change the transformer Y Refer to the Operarting Instruction Manual Y N The main borad can supply power ? N N Motor connection is normal ? Check the connction of the wires Change the main borad Y Y Change the motor or the capacitance Maintain or change the wired temote controller 25 . FHBQ-D10-K. Humidity sensor POWER PE L1 L2 L3 N Humidifier AC Contactor Coil Wired controller Remote Control Note: 1.Wire the CN9 on the main board to the united control to access a center control to the air valves.5-K.Energy-Recovery Ventilation System Service Manual 3 WIRING DIADRAM External wiring figure of the unit(If this one is different from wiring figure of junction box.FHBQ-D20-M.When need humidifier.connect "1" and "2" terminal (220V～，1A) to the contactor coil of the humidifier.Meanwhile.FHBQ-D5-K.Wire the CN9 on the main board to the united control to access a center control to the air valves.FHBQ-D8-K.connect the humidification sensor to HUMIDITY terminal on the main board. 2.The part with broken line is optional for user. 3.connect the humidification sensor to HUMIDITY terminal on the main board.connect "1" and "2" terminal (220V～，1A) to the contactor coil of the humidifier.Meanwhile. 3. 26 United control . 2) Model:FHBQ-D15-M.The part with broken line is optional for user.When need humidifier. 2. 1) Model:FHBQ-D3. Humidity sensor POWER PE L N Humidifier AC Contactor Coil United control Wired controller Remote Control Note: 1. take the wiring box of junction box as standard) . WH WH YE GNRD YE GN RD WH WH Exhaust OFF POWER Fan Motor YEGN YEGN Blower Motor Exchange ON Note: 1. Controlling switch (back side) 27 .Press "OFF" or "Exhaust". 2. 3. L is connected with L2.disconnected with L2. disconnected with L1.L is connected with L1.The broken line part is connected by user.Energy-Recovery Ventilation System Service Manual 3) FHBQ-D30-M.Press "ON" or "Exchange". Make the air flow. 4. The important Sub-Assy that make the fresh air and room air exchange energy. Bolt Name: Electric Box’s teardown Fig. Heat Exchange core.1 Main parts introduce Main parts dismantle and install Name: Service door’s teardown Fig. and then take down the buckle. show Discharge the two bolts on the right of the Service door.Energy-Recovery Ventilation System Service Manual 4 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS Picture Name Function Acentric Motor Sub-Assy. show 28 . Take out the core and the filter beforehand. show and take out the fixing board assy.Energy-Recovery Ventilation System Service Manual Remove the two bolts and then circumgyrate the Electric Box to open it. show Motor Sub-Assy 1.Opening the top cover. Disentwine the nut that used to fix the fan and pedestal. Bolt 29 . we could be able to take out the core and the filter. Air path foam 2. Remove the bolt that used to fix the fan and side panel. show After removing the service door. 3. Take out the air path foam. The core should be washed by cleaner or other special dust catcher equipments except water. Remove the bolt as the fig. Heat Exchange core Filter Name: Motor Sub-Assy’s teardown Fig. Capacitance Bolt Name:Change the heat exchange core and filter Fig. FHBQ-D5-K. 2 1 1 1 1 1 2 2 1 1 1 4 2 1 1 2 2 1 2 1 1 1 1 Code 12208928 12208916 01318902 01398902 02208901 01288901 01848903 76718901 12319813 01396159 01311115 01491142 12319811 12208920 07138901 11128901 00908901 12319812 15408901 01268901 1220890103 `01311116 30295007 30 . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Name sponge 1( Left Side Plate) sponge 2( Left Side Plate) Assy 2 of Left Side Plate Assy of overhauling door Door Holder Base Plate Assy Retaining Plate Assy Rubber Sheet Foam Assy 3 Electric Box Assy Sub-assy of Right Side Plate flange Sub-assy Foam Assy 1 sponge(Side of Bottom Plate) By-pass assy Filter Sub-assy heat exchanger assy Foam Assy 2 Motor Sub-Assy Cover Plate Assy sponge Sub-assy 1 of Left Side Plate Display board Num.FHBQ-D20-M. Exploded View FHBQ-D3.Energy-Recovery Ventilation System Service Manual 5 EXPLODED VIEWS AND PART LIST 1) Model:FHBQ-D3.FHBQ-D10-K FHBQ-D15-M.5-K.FHBQ-D8-K.5-K( EH01100010)Parts List No. 2 1 1 1 1 1 2 2 1 1 1 4 2 1 1 2 2 1 2 1 1 1 1 Code 12208928 12208916 01318902 01398902 02208901 01288901 01848903 76718901 12319813 01396159 01311115 01491142 12319811 12208920 07138901 11128901 00908901 12319812 15408901 01268901 1220890103 `01311116 30295007 31 . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Name sponge 1( Left Side Plate) sponge 2( Left Side Plate) Assy 2 of Left Side Plate Assy of overhauling door Door Holder Base Plate Assy Retaining Plate Assy Rubber Sheet Foam Assy 3 Electric Box Assy Sub-assy of Right Side Plate flange Sub-assy Foam Assy 1 sponge(Side of Bottom Plate) By-pass assy Filter Sub-assy heat exchanger assy Foam Assy 2 Motor Sub-Assy Cover Plate Assy sponge Sub-assy 1 of Left Side Plate Display board Num.Energy-Recovery Ventilation System Service Manual FHBQ-D5-K (EH01100020) No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Name sponge 1( Left Side Plate) sponge 2( Left Side Plate) Assy of Left Side Plate Assy of overhauling door Door Holder Base Plate Assy Retaining Plate Assy Rubber Sheet Foam Assy 3 Electric Box Assy Sub-assy of Right Side Plate flange Sub-assy Foam Assy 1 sponge(Side of Bottom Plate) By-pass assy Filter Sub-assy heat exchanger assy Foam Assy 2 Motor Sub-Assy Cover Plate Assy sponge Sub-assy of Left Side Plate Display board Num.Energy-Recovery Ventilation System Service Manual FHBQ-D8-K(EH01100030) No. 2 1 1 1 1 1 2 2 1 1 1 4 2 1 1 2 2 1 2 1 1 1 1 Code 12201137 12201138 01311123 01391128 02208901 02221124 01841108 76718901 12311101 01396160 01311125 01491139 12311103 12201141 04631124 1112800101 00901101 12311102 15401109 01261109 1220113504 01311116 30295007 32 . 2 1 1 1 1 1 2 2 1 1 1 4 2 1 1 2 2 1 2 1 1 1 1 Code 12201137 12201138 01311123 01391128 02208901 02221124 01841108 76718901 12311101 01396160 01311125 01491139 12311103 12201141 04631124 1112800101 00901101 12311102 15401109 01261109 1220113504 01311116 30295007 33 .Energy-Recovery Ventilation System Service Manual FHBQ-D10-K(EH01100040) No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Name sponge 1( Left Side Plate) sponge 2( Left Side Plate) Assy of Left Side Plate Assy of overhauling door Door Holder Base Plate Assy Retaining Plate Assy Rubber Sheet Foam Assy 3 Electric Box Assy Sub-assy of Right Side Plate flange Sub-assy Foam Assy 1 sponge(Side of Bottom Plate) By-pass assy Filter Sub-assy heat exchanger assy Foam Assy 2 Motor Sub-Assy Cover Plate Assy sponge Sub-assy of Left Side Plate Display board Num. 2 1 1 1 1 1 2 2 1 1 1 4 2 1 1 2 2 1 2 1 1 1 1 Code 12201137 12201138 01311123 01391128 02208901 02221124 01841108 76718901 12311101 01396160 01311125 01491139 12311103 12201141 04631124 1112800101 00901101 12311102 15401109 01261109 1220113504 01311116 30295007 34 .Energy-Recovery Ventilation System Service Manual FHBQ-D15-M(EH01100050) No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Name sponge 1( Left Side Plate) sponge 2( Left Side Plate) Assy of Left Side Plate Assy of overhauling door Door Holder Base Plate Assy Retaining Plate Assy Rubber Sheet Foam Assy 3 Electric Box Assy Sub-assy of Right Side Plate flange Sub-assy Foam Assy 1 sponge(Side of Bottom Plate) By-pass assy Filter Sub-assy heat exchanger assy Foam Assy 2 Motor Sub-Assy Cover Plate Assy sponge / Display board Num. 2 1 1 1 1 1 2 2 1 1 1 4 2 1 1 2 2 1 2 1 1 1 1 Code 12201137 12201138 01311123 01391128 02208901 02221124 01841108 76718901 12311101 01396160 01311125 01491139 12311103 12201141 04631124 1112800101 00901101 12311102 15401109 01261109 1220113504 01311116 30295007 35 .Energy-Recovery Ventilation System Service Manual FHBQ-D20-M(EH01100060) No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Name sponge 1( Left Side Plate) sponge 2( Left Side Plate) Assy of Left Side Plate Assy of overhauling door Door Holder Base Plate Assy Retaining Plate Assy Rubber Sheet Foam Assy 3 Electric Box Assy Sub-assy of Right Side Plate flange Sub-assy Foam Assy 1 sponge(Side of Bottom Plate) By-pass assy Filter Sub-assy heat exchanger assy Foam Assy 2 Motor Sub-Assy Cover Plate Assy sponge / Display board Num. Energy-Recovery Ventilation System Service Manual Model:FHBQ-D30-M Exploded View 36 . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Name Front side plate assy 1 Assy of overhauling door Electric Box Assy Filter Sub-ass Front side plate assy 2 Hanger crossbeam Bottom plate assy Rubber gasket Hanger longeron Sub-assy Acentric motor Air inlet/outlet assy Side plate(air outlet) Clapboard assy 1 Back side plate assy Top cover plate 1 Top cover plate 2 Middle clapboard assy 1 Clapboard assy 2 Connection plate(top cover) Guide groove(top cover) Heat exchange core Fan retaining rack Sub-assy Guide groove(filter) Num. 1 1 1 4 1 2 1 8 2 2 4 2 1 1 1 1 1 1 1 1 2 2 1 Code 01398904 01318912 01396168 11128001 01316080 01871226 02228904 76018401 01871224 15706001 01491143 01318918 01248901 01318909 01268906 01268907 01248909 01248905 01341105 02281115 49018903 01848905 02281112 37 .Energy-Recovery Ventilation System Service Manual FHBQ-D30-M(EH01100070) Parts List No. JF00300198 .
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