User Manual - BT Commercial Malta
Contents
1. It is recommended to ON in dry period The fittings are optional 9 Fan Mode Display Gree heat recovery ventilation system Press FAN and A at the same time for 5s to switch among half half air exchange discharge and supply Refer to Fig 2 for details The fan mode is selected by the users E g plus pressure is needed in the room fan mode can be adopted and if negative pressure is needed air discharge mode can be adopted Half half air exchange is for normal station 10 Energy Saving Mode Display Press FAN and at the same time for 5s to switch between energy saving on off If under energy saving on state Energy Saving will be displayed Refer to Fig 2 for details If the unit needn t operate for a long time energy saving mode can be adopted to meet the demands of both function of fresh air exchange and quality of indoor air by users 11 Fault Display If fault happens during operation of the system ERROR and error code will be displayed in the displayer Timer can not be displayed Error Code Error E6 Communication error FO Indoor temp sensor error L1 Humidity sensor error F3 Outdoor temp sensor error Air valve and relevant fitting error or wrong LO connection of centralized control wiring of air valve 12 Intelligent On off Intelligent on off which is applied in a unit to connect air valves in many rooms is also centralized control to air valve A piece of2. 5 l 14 Reset Switch button exchange discharge and supply 6 Fan speed display high mid low 15 Timer button 7 Mode auto by pass heat exchange 16 On Off button 8 Error status display 9 Cleaning status of filter display Gree heat recovery ventilation system Notice For FHBQ D15 M and FHBQ D20 M there is no air discharge and supply function in Item 5 and the fan speed in Item 6 is unadjustable 1 Turn On Off the Unit Press ON OFF button to start the unit Fig 3 Press ON OFF button once again to stop the unit 2 Fan Speed Control Fig 4 5 The figure is about relative display area the same as below During half half air exchange With each press of FAN button the fan speed will change in the following order Fig 4 Low Med High Note No change to fan speed of FHBQ D15 M and FHBQ D20 M during control During air discharge and air supply with each N MODE f a Of SET ENV vO cny ony A D LAAs RH at hA AoRH Fan OJ Pa z E RESET 7 A ran B swith L speen W Pa HEAT TIMER O is EXCHANGE A GREE ON OFF CO 3 Fig 3 f N A MODE Orn a7 yE SET ENV YH Cc ny Dag riy L fl Dd Ao RH sf LNZRH ran CA E RESET P J con SWITH Q speen HEAT TIMER LA EXCHANGE PA O aree jonorr C
3. and maintain the equipment Notice Gree energy recovery ventilation system O GREE In order to install and use this unit correctly please read this installation and usage instruction carefully Gree Electric Appliances Inc of Zhuhai 66176036
4. gt GREE Energy Recovery Ventilation System Installation and Usage Instruction This Instruction is suitable for the following models D Series FHBQ D3 5 K FHBQ D5 K FHBQ D8 K FHBQ D10 K FHBQ D15 M FHBQ D20 M Gree Electric Appliances Inc of Zhuhai Contents Preface nnwn mene nnnnnmn nnn nce nnnnn mmen 1 Introduction to Products 1 Main Features 1 Feature of Structure 2 Main Unit mnnnnmnnnnn nnn nn nnnnnnn nnn nnn nnn nnn nnn men n nnn nnnmnnnnnnne 2 Wired Controller Standard Fitting 3 Outline and DIMENSION 9 Equipment Installation 9 General Description 9 Project Design 10 Project Construction 13 Installation of Wired Controller 13 Manufacture of Duct and Parts 14 Field Construction 16 Ele
5. timer off energy saving on and energy saving off fa and air clear can be set Press Timer button into timer setting status SET ENY TIMER Hr and letters corresponding setting will blink pag ny Cc ny DA 087 RH mt al O RH E g during timer off setting Timer Hr and OFF w FAN speen W will flash In this case the user can press Aor Wto HEAT EXCHANGE increase or decrease setting time Repress Timer button O Saree Ko to make the timer valid and the timing will be Fig 9 calculated after that When the unit is under timer state press theTimer button to cancel it The time interval is 0 5 hr The setting range of Timer on off is 0 5 24hr The setting range of Energy Saving On is 2 5hr and the default is 2hr The setting range of Energy Saving Off is 1 4hr and the default is 1hr Note press FAN and at the same time for 5s only after energy saving timer setting the energy saving function can operate The setting range of Timer Clear is 1250hr 2500hr and 00000 The default is 1250hr 7 Ambient Temp Display Under normal state only indoor ambient humidity is display at ENV Notice The humidifying function with the unit can be valid after it is started 8 Humidifying ON OFF Display Press MODE and Wat the same time for 5s to switch between humidifying ON OFF Note The unit with humidifying function can normally run The indoor humidity and setting humidity can be displayed only If this function is on The default is OFF
6. unit and damage electrical insulator and cause electric shock Danger Never wash the main unit with water It is easy to cause electric shock Danger m Do wear gloves to clean filter and heat exchanger It is easy to cause injury Notice m Do not install the unit against fire soure or at the place where there is naked flame It is easy to cause heat or fire Forbid m Do not install the unit at the place where there is acid alkaline organic resolvent paint and other harmful or corrosive gas like chemical plant etc It is easy to cause poisoning and fire Forbid N Danger 7 Open system burning equipmets warm air for air exchange can not be used If gas or oil heater is used in the room special ventilation equipment must be used Forbid 24 Gree energy recovery ventilation system m Do not use flammable spayer near the main unit It is easy to cause fire Forbid m Never operate the switch with wet hand It is easy to cause electric N shock Forbid m Turn off the breaker if the unit will not be in use for a long time to ensure safety Too much dust will heat and cause fire Notice m Do not install the unit at the place where there is leakage of flammable gas If there is leaked gas around the unit fire is easy to result Forbid m Maintenance space must be reserved maintenace place It is convenient to clean heat exchanger core and filter
7. with tapping screws to avoid electric shock Earthing resistance should be accord with national criteria GB17790 Power supply must be reliably earthed The earthing wire can not connect with 1 Tap water pipe 2 Gas pipe 3 Blowing tube 4 Place which specialist considers unreliable Warning Cut off the power supply before installation and maintenance to avoid electric shock Arrange wirings according to requirements strictly to avoid malfunction electric shock or fire Special Notice The company won t be responsible for bad results because users self modify the electric control system without consent of the company Operation and Maintenance Check the connecting wires and perform trial run after installation work Check before trial run 1 Check of pipeline system According to design drawing and instruction check bearings of duct firmness of hanging of the equipment anticorrosion paint of hanger and the said items which should be paid attention to as well as operation space for replacement of air filter installation location of duct muffler the inside or top of the duct or equipment for sundries or mounting tool and firmness of installation of duct vent 2 Check of circuit system According to circuit diagram check the connection and voltage of power cords Trial Run 1 Power the unit on to start the unit Refer to the section of instruction to operation of wired controller 2 If the
8. O X J Fig 4 N mone C PZ ZA SET ENV v Oi cny ony Al Pits en AR ew Co RESET OA ran B SWITH OF SPEED Mf EXHAUST p HEAT timer L2 EXCHANGE ASA O GREE ON OFF p7 XS press of FAN button the fan speed with switch between high speed and low Fig 5 Gree heat recovery ventilation system speed Fig 5 pow sigh Note No this function for FHBQ D15 M and FHBQ D20 M during control 3 Humidity Adjustment Fig 6 If there is humidifying function in the unit press i humidify button A Used to increase setting humidity v Used to decrease setting humidity SET ENV Once press of this button the T ny 5 HA temperature will increase or decrease by 5 i speeD W Note Lock function Pressing A and HEAT er EXCHANGE ees CA simultaneously for 5s the place of setting humidity will SS w display EE and all response to the buttons Fig 6 will be shielded And then press A and Y simultaneously for 5s to release Lock Function When long distance monitoring or centralized control shield displayer the signals of buttons and from remote controller will be shielded and CC will be displayed in the place of setting humidity Setting range of humidity 30 70 RH 4 Reset Switch Function Setting Not having pressed Timer button long press Reset Switch button for 5s to clear operation time and icon Gree heat recovery ventilation system After pressing of
9. Timer button Under On status of the unit short press Reset Switch button to switch among Timer off setting Energy saving startup setting Energy saving stop setting and Clear time setting SET ENY i cny ony Lt Lat Ao RH ml hal AO RH o SPEED E HEAT EXCHANGE L GREE Se Fig 7 5 Running Mode Setting Fig 8 Each press of this button the operation mode will change as follow Auto Bypass Heat exchange Under Auto mode the letter of Auto will light so the system will operate according to temperature and temperature difference between room and outdoors SET ENV at A i pug re ce rs Under By pass mode the letter of By Pass will light i p7 m D He so the fan will operate according to setting Fan mode w FAN E and fan speed Make this mode operate in transient aaa ae EXCHANGE season to prolong service life of the core of heat C O arce RQ exchanger Fig 8 Under Heat Exchange mode the letter of Heat Exchange will light After shutdown of air valve the fan will operate according to setting fan mode and fan speed Under this mode the total heat exchange of temperature and humidity can be realized along with exchange of fresh air which is energy saving and healthy 262 Gree heat recovery ventilation system 6 Timer Setting Fig 9 In off status of the unit timer on can be set and in on status
10. ce Warnig Install the unit strictly according to the instruction Improper operation will cause electric shock fire and so on Dangerous m The air inlet should be installed at the place far from exhaust vent for fuel gas Dangerous It s easy to cause deficiency of oxygen in the roon m The earthing wire can not connect with gas pipe water pipe lightning rod phone line and so on Improper earthing will cause electric shock Dangerous 22 E The electric project should be constructed according to national rules and constructio instruction Poor capacity of power cord or improper construction will cause electric shock fire and so on Dangerous m Install the air inlet at the place where exhausted air can not flow backwards It s easy to cause pollution of the room and damage the health Force m Turn off the switch and special circuit breaker during maintenance of the unit It s easy to cause electric shock Dangerous m Never insert finger or stick into suction or discharge vent It is easy to cause injury that the fan runs at high speed Forbid a Use the unit according to rated voltage It is easy to cause electric shock or fire Forbid N Warming m Ventilate the room by opening the window if flammable gas leaks The spark electric contact may cause explosion or fire after the unit starts Danger a Stop the unit and turn off specia
11. ctric Project 18 Electric Installation 19 Operation and Maintenance 20 Check befor Trial Run 20 Trial RUM 9 wnnnwnnnnnnnnnannnn nnn nennnnnnnnn mene nnnnnnnnnnennnennnnnacnnnnennnnnnnnns 20 Daily Maintenance 20 Fault Diagnose 21 Notice for Safety 22 Gree energy recovery ventilation system Preface Our living environments are more and more affected by modern civilization As the application of air conditioning 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 energy saving 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 duri
12. d be drilled mechanically and not with gas cutting 5 The bracket and hanger can not set at air vent valve or service door The hanger can not be directly fixed at flange The distance between horizontal duct bracket and hanger can not exceed 4m If the duct is installed vertically the distance between them should not exceed 4m 16 Gree energy recovery ventilation system and the built in fittings of each vertical duct should be more than 2 pieces The duct flange hanger and hanger for equipment should be coated with anticorrosion paint The floor plate and wall which the duct passes should be repaired after construction 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 Installation of duct and connection between air vent and duct should be firm The frame and decorative surface should be solid external surface should be level and indeformable and adjustment should be flexible 17 Gree energy recovery ventilation system Electric Project External wiring figure of the unit If this one is different from wiring figure of junction box take the wiring box of junction box as standard Hote 1 When need humidifier connect 2 terminal 220V Live Temp same time connect the humidification sensor to HUMIDITY ORRE terminal on the PCB 2 When using air valve centralized control the connection between L and I should be cancelled and t
13. d compactly 7 The allowable deviation to duct and flange is as follow 14 Gree heat recovery ventilation system Allowable deviation to manufacture of duct and flange Allowable No Item deviation Check Method mm 0 i lt 30mm j External diameter 1 Diameters form 90 measured of round duct 0 by ruler gt 300mm 2 0 lt 300mm The longer edge of 1 2 Check by ruler rectangle duct 0 gt 300mm 2 2 Diameters form 90 measured 3 Diameter of round flange 0 by ruler 2 4 Diameter of rectangle flange Check by ruler 5 Difference between diagonal 3 Check by ruler lines of rectangle flange Planeness of flange 2 Put them on the platform to Planeness of weld joints of 1 check with feeler flange 10 The absolute value of difference between diagonal lines of rectangle flange should be L1 L2 S 3 as shown in fig 21 11 The verticality tolerance between the flanges at two ends of the elbow of rectangle flange should be 3 0 90 elbow the absolute value of difference between diagonal lines should be L1 L2 lt 3 as shown in fig 22 Fig 21 Rectangle duct Fig 22 Elbow 15 Gree energy recovery ventilation system Field Construction 1 Never lay wires cables and pipes with toxic inflammable or explosive gas or liquid in the duct 2 The dismountable ports and adjustable parts of duct and fittings can not be installed in the wall or floorslab 3 The sun
14. dries and filth in or on the duct and fittings should be cleaned before installation 4 The construction of bracket or hanger of the duct should accord with the following specifications 1 The build in fitting setting nail or expansion bolt for bracket or hanger should be placed correctly and firmly The inlet part should be free of oil soil and painting 2 The layout of the bracket or hanger should accord with design specifications If there is no design specification following specifications will apply a Pole bracket or inclined bracket is applicable for horizontal duct against wall or pole and support bracket for that far from wall or pole Strip hanger is applicable for the duct with diameter or length of side below 400mm b 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 The vertical pipe outside the room or on the roof should be fixed with derrick or dragline 3 The hanger s rod should be flat and its screw thread should be full and smooth Either threaded connection or welding is suitable for joint of hangers If the former one is adopted connecting thread of either end should be longer than diameter of hanger moreover anti loosing measure should be made If the later one is adopted lapping joint is applicable and its length should be 6 times longer than diameter of hanger at least at two sides 4 The holes on the bracket and hanger shoul
15. e of wired controller and then inset stopper into the holes through which the wired controller can be fixed Insert communication wire in the control board At last clasp the controller panel Note During installation of underplate of wired controller pay attention to its direction The side with 2 breaches must be kept downwards 13 Gree heat recovery ventilation system HA i AN PVC pipe U 7 y DA J Z ZZ Ay Z i IZ h Z A Z y Z iy 4 1 Z Vv ey j Y 9 Y 4 Y Z q Yj 7 7 yy Fig 18 Fig 19 Fig 20 No Name Remarks 1 Wall The appearance 2 Underplate of wire of the controller controller should be subject 3 Screw M4X10 to entity 4 Controller panel Caution The communication distance between mainboard and wired controller can be up to 20m 8m is standard Manufacture of Duct and Parts 1 The plates or sectional material used for manufacture should have factory certificate of qualification or quality identification document 2 The thickness of steel plate for manufacturing duct should accord with requirements in drawing 3 The surface of galvanized steel metal should be free of crack scar and watermark but crystal texture 4 The specification and dimension of duct must accord with design requirements 5 The joint of duct must be tight and free of defects like crack etc 6 The surface of carbon steel should be coated with anticorrosion paint evenly an
16. hen connect terminal to air valve pinboard A line to inductance coil of humidifier AC contactor At the I I I I l l 3 The part with broken line part is optional for user I Live line Manual controller Neutral line l Pinboard of air valve L a Fig23 Wiring figure suitable for FHBQ D3 5 K FHBQ D5 K FHBQ D8 K FHBQ D10 K Hote 1 When need humidifier connect 2 terminal 220V Live line to inductance coil of humidifier AC contactor At the RA sabes as ces same time connect the humidification sensor to HUMIDITY I l terminal on the PCB Temp 2 When using air valve centralized control the connection sensor l l between L and 4 should be cancelled and then connect terminal to air valve pinboard l 3 The part with broken line part is optional for user l l i I Live line Neutral line cee Pinboard of air valve l Fig24 Wiring figure suitable for FHBQ D15 M FHBQ D20 M 5 18 Gree energy recovery ventilation system Electric Installatrion Notice The AC must be reliably earthed to avoid electric shock or fire 1 Layout of Wires Layout of wires should accord with national wiring criteria The power supply must be with rated voltage and special for AC The power supply should be reliable to prevent terminals from being stressed Never pull the power cord forcibly The line width
17. inals Check the connecting wire between displayer and mainboard Check by pass door and drive structure of the unit and fix it Connect CONTROPL port of mainboard with live line or pinboard of air valve 21 Notice for Safety others Gree energy recovery ventilation system Before installation please carefully read Notice for Safety Be sure to conform to the following items to prevent damage to users or The damage and degrees resulted from incorrect operation are as follow A Danger This mark means that dangerous cases like death or grievous harm will happen A Warning This mark means that dangerous cases like death or grievous harm may happen A Notice This mark means that injury or damage to property may happen The contents needed to be conformed are defined as follows S This mark means that something can not be performed O These marks mean that something must be performed m lease ask professionals for installation Never install move or refit the unit by yourself Improper operation will cause falling electric shock fire and so on Forbid m Install bird net and suchlike things at air exchange vent Clean up sundries like nest to avoid deficiency of oxygen in the roon Notice m The unit should be installed at the place with enough strength and reliability Some places are not strong enough for structure of the buildings Noti
18. l breaker once paticular smell occurs Continuous operation in abnormal state may cause malfunction Danger electric shock or fire m Make insulated layer between pipe and wall if metal pipe goes through metal sheet or mesh of wooden building It is easy to cause electric shock or leakage Must Gree energy recovery ventilation system m Never refit disassemble or repair the unit by yourself Improper repair may cause electric shock or fire Forbid m Never put animals or plants against air vent It may cause bad effect to animals and plants Notice For easy repair and cleaning of filter and heat exchanger core in the unit make sure to reserve proper maintenance space DDS m Do not put the buruning appliances at the place against the air vent It is easy to cause insufficient burning of the burning appliances Forbid If water leaks it will enter into the unit and damage electrical insulator m Operate the switch correctly Never quickly repeat It is easy to cause incorrect operation and result in bad effect to switch and internal relay Notice Periodically clean the filter Too much dust attached on the filter will cause hypoxia in the room Notice m Do not install the unit at the wet place like bathroom etc It is easy to cause electric shock or leakage Forbid Notice m Take waterproof mesures for the unit If water leaks it will enter into the
19. led with long acting sealing materials to prevent leakage of case The case is made of hot galvanized steel plate and the surface of it is bound with insulating sponge to resist noise resulted from operation of ventilation fan and prevent condensate in summer or winter Fig 1 is the sketch of main structure service door has been taken out 1 Room air outlet 2 Case 3 Fresh air inlet 4 Lifting lug 5 Air filter 6 Heat exchanger 7 Electric box 8 Fresh air outlet 9 Room air inlet Fig 1 FHBQ D series heat recovery ventilation system standard Gree energy recovery ventilation system Wired Controller Standard fitting Instruction to Wired Controller Notice Never install it in the place with water leakage Never knock drop or frequently turn on off it 8 9 10 TIMER ri Pie 1 onor Al 14 123 MON TUE WED THU FRI SAT SUN 2 12 SET save ENV 3 FG EG Sf ERROR EG EGS f Kits R A AA S W uy gt 6 FAN SPEED Mf EXHAUST P 15 HEAT TIMER _4 7 _ AUTO BYPASS EXCHANGE a O GREE Fig 2 Front panel of wired controller Constitution of wired controller 1 Timer display 10 Mode button Setting humidity increase 2 Energy saving status display 11 g d button Setti humidity d 3 Setting humidity display 12 E ee ee button 4 Ambient humidity display 13 Fan speed button Air exchange mode half half air
20. m fresh air inlet 10 Gree heat recovery ventilation system lt 1000mm gt 1000mm x X x v Fig 13 Outdoor vent Fig 14 Distance between outdoor vents If the user intends to lower the indoor noise as much as possible muffler can be concatenate with duct and be installed with the guidance of professionals The noise at vent of unit can usually be decreased by 4 6 dB after setup of suitable muffler If electric heater is set in the duct its switch should be interlocked with that of ventilation system i e it only can start after ventilation fan start to run The duct had better adopt incombustible materials The air filter core should be replaced periodically so maintenance space should be reserved at one side of fresh air ventilation system during installation The steel hanger should be pre built in the ceiling for cassette energy recovery ventilation system according to its specification and weight to ensure firmness and reliability of installation If the project is reconstructed the hanger should be put after drilling holes in the ceiling as shown in Fig 15 a If it is not convenient to drill holes through chiseling the concrete find out the inner steel bars which can hang the hanger as shown in fig 15 b Inner steel bar Hanger Ceiling Hanger Ceiling ELLLLEKLELLLL LD Fig 15 a Fig 15 b 11 Gree heat recovery ventilatio
21. n system The damaged ceiling during installation of hanger should be repaired and recovered before completion of the project Installation Sketch of FHBQ D Series Energy Recovery Ventilation System Fig 16 Installation Sketch of FHBQ D Gree heat recovery ventilation system During installation the two ducts fresh air inlet and indoor airoutlet outside the room must be installed with anti condensate and heat insulating materials and the ones inside the room should also be installed with them if temperature and humidity in the ceiling is high The ducts outside the room should be kept inclined 1 50 1 30 to avoid water into room In order to clean and maintain the filter and heat exchanger core in the system do keep service space as shown in fig 17 Service space Fresh air outlet Dirty air inlet Fig 17 Maintenance space figure Project Construction Installation of Wired Controller 1 Locate the installation position firstly and then reserve a groove or hole for embedding of communication wire according to its dimension 2 If wired controller and indoor communication wire are mounted visibly 1 PVC pipe can be used and corresponding grooves should be set in the wall fig 18 If in hidden 1 PVC pipe can be used as shown in fig 19 3 Whether mounted visibly or in hidden drill two holes keep level in the wall as the distance 60mm between the two holes in underplat
22. ng 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 Introduction to Products Main Features 1 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 2 Energy recovery Function Internal heat exchanger makes the discharged air and introduced air for cooling and heating exchange Energy recovery rate above 70 keeps heat preservation and ventilation realized 3 Low noise Design Special low noise ventilation fan is set 4 Air Filtration and Purge Function Internal air filter keeps the fresh air introduced into room pure and dustless 5 Various Series and Multiple Specifications There are various series to match with the buildings of various structures Gree energy recovery ventilation system Features of Structure Gree heat recovery ventilation system consists of main unit wired controller standard fitting etc Main Unit Some parts like low noise centrifugal fan heat exchanger and so on are set in the main unit The air can be filtered effectively against dust particles fibre etc before entering into heat exchanger The filter in the unit can be taken out after opening the service door The bonded place between case and service door is sea
23. of power cord must be large enough Replace the broken power cord or connecting wire with special cable All of the electric installation must be performed by professionals according to local laws and regulations and instructions The earthing wire should be reliably connected with special earthing device and be performs by professionals Air switch and leakage switch which can cut off the general power supply should be installed The air switch should integrate the functions of magnetic release and hot release to protect it for short circuit or overload The field wiring should be subject to circuit diagram attached on the unit Recommended Air Switch and Power Cord Applied Power Capacity of Min sectional area Min sectional area models supply air switch of earthing wire of power cord A mm mm FHBQ D3 5 K 220V 6 1 0 1 0 50Hz FHBQ D5 K 220V 6 1 0 1 0 50Hz FHBQ D8 K 220V 6 1 0 1 0 50Hz FHBQ D10 K 220V 6 1 0 1 0 50Hz FHBQ D15 M 380V 3N 6 1 0 1 0 50Hz FHBQ D20 M 380V 3N 6 1 0 1 0 50Hz Note The power cord of the unit must be copper cored cable and working temp can not exceed specified value b Increase the sectional area of power cord above 15 meters to avoid overload 19 Gree energy recovery ventilation system 2 Earthing Requirements Reliable earthing measure must be adopted The yellow green earthing wire with the only use never can be cut off and fixed
24. pinboard can be used to connect with up to 8 air valves Many pieces of Gree heat recovery ventilation system pinborad can also be used to connect with more air valves Outline and Dimension The pinboard is special fitting Fig 10 Outline and Dimension FHBQ D3 5 K 879 823 800 852 306 125 90 125 175 36 416 197 FHBQ D5 K 879 823 800 852 B06 125 90 125 175 136 416 197 FHBQ D8 K 1016 960 832 884 B80 165 90 150 230 155 72 246 FHBQ D10 K 1016 960 832 884 B80 165 90 150 230 155 72 246 FHBQ D15 M 1215 1159 1210 1262 452 200 100 190 P77 78 737 297 FHBQ D20 M 1215 1159 1210 1262 452 200 100 190 P77 78 737 297 Equipment Installation General Description Models selection and project design should be performed by professional engineer in terms of heating and ventilation and the project should be constructed by experienced construction organizations according to national criteria and rules Once the unit can not operate normally because the user fails to conform to the requirements for installation our company will charge the user for after sales service Gree heat recovery ventilation system Project Design This unit should be equipped with two ventilating ducts for two way ventilation between room and outdoors One duct is used to introduce fresh air into room and the other one is used to discharge indoor airout of room Some resistance will re
25. re is any malfunction cut off the power supply and refer to fault diagnosis and check Daily Maintenance Air filter must be installed if not heat exchange core will be covered with feculence and dust so that its performance will be reduced If airflow volume or discharge air volume is obviously decreased filter should be replaced for overmany dust Setting of replacement period may be displayed in the displayer or according to actual condition in each area 20 Fault Diagnose After debugging and trial run the unit can be normally used by the user If any fault occurs remove it Gree energy recovery ventilation system firstly by yourself according to the following table before you contact us Phenomenon Possible causes Solutions Airflow volume at air outlet inlet is obviously decreased after a period of time Too much dust gathers on the air filter Replace or clean air filter Noise occurs at air vent The system can not be started Installation of air vent is loose No power supply or power cord is incorrectly connected Terminals of mainboard transformer are loose Communication fault E6 Air valve and relative fittings are faulted LO The centralized controller of air valve of mainboard is not connected LO Re fix the collecting place of air vent Repair the power supply and check power cord according to circuit diagram on the unit Re insert and connect transformer term
26. sult to the air through the duct The greater the resistance is the lower the ventilation quantity is so long duct small caliber or big quantities of elbows will result in great resistance to the air in the duct and low ventilation quantity Please perform design and installation according to the following principles 1 Either of the ducts can not exceed 15 30m long according to models Internal cross sectional area of the duct is decided by internal fan speed about 8m s in main pipe and about 5m s in branch pipe If rectangular duct is used the scale of length between two sides can not exceed 4 The duct should be made of noncombustible materials 2 Use elbows as few as possible which should be within 3 for either duct The bending part can never be 90 but arc as shown in fig 12 13 Fig 11 Elbow type Fig 12 Arrangement of duct 3 The inwall of the duct should be slick dustless and unfolding 4 Keep air resistance of decorative vent on outdoor wall and indoor ceiling low It is better to install rectangular aluminum alloy diffuser or two layer louver with caliber of above 200x200mm If the outdoor vent is waterproof louver its caliber area should be 3 4 times bigger than cross sectional area of duct connecting with it The air flow can pass through the louver smoothly The selection of outdoor vent is shown as fig 13 5 The distance between the two vents should be above 1000 mm to prevent exhausted air from returning into room fro
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