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User Manual DFRA Series  |  

 
 

 

47 

 
Calculation of the flow using the differential suction pressure of the fan 

 
Calculating the flow, having configured the control mode pressure, and whenever the fan 
is a Plug-fan type, can be done with the following equation: 
 
 

𝑄 = 𝑘 ∗ √

1.2

𝜌

∗ ∆𝑃

 

Where: 

-

 

Q stands for the air flow in m

3

/h 

-

 

𝜌

 is the density of the air through the fan, in kg/m

3

 

-

 

∆𝑃

 is the differential pressure in Pa measured between the suction 

plenum of the fan and its inlet ring. 

-

 

𝑘

 is an intrinsic constant of each fan.  

 

The 

k

 values for each DFRA model are the following:  

 
 

DFRA 
model 

100 

130 

160 

175 

200  230  300 

400 

500 

650 

900 

k value 

95 

121 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Содержание DFRA Series

Страница 1: ...Espa a Tel 34 91 692 15 14 Fax 34 91 691 64 56 info fisair com fisair com USER MANUAL DFRA SERIES MUSA EN 20 0 In compliance with the Rules and Standards of the European Union on Machine Safety it is...

Страница 2: ...User Manual DFRA Series 2...

Страница 3: ...9 4 Connecting thermal fluids steam reactivation battery 33 9 5 Connecting the gas supply to the gas reactivation heater 35 9 6 Connecting thermal fluids additional batteries 37 9 7 Connection to the...

Страница 4: ...e correct use of the dehumidifier includes following our instructions for installation set up operation and maintenance as well as following the steps indicated in the instructions in the correct sequ...

Страница 5: ...from other objects security override etc GERMAN FISAIR lehnt jegliche Verantwortung ab wenn nicht alle von FISAIR zur Verf gung gestellten Montage und Betriebsanleitungen eingehalten werden oder wenn...

Страница 6: ...peligro su vida sino se respetan las instrucciones Atenci n Este es el s mbolo de una alerta de seguridad Sirve para advertirle del peligro potencial de sufrir lesiones corporales Respete todas las i...

Страница 7: ...se deben reparar inmediatamente Sobre la Instalaci n Desmontaje Mantenimiento y Reparaci n de la unidad La m quina no deber ser manipulada cuando se encuentre en funcionamiento Apague la alimentaci n...

Страница 8: ...y or death if the instructions are not respected Attention This is the symbol of a security alert It serves to warn you of the potential danger of bodily injury Observe all safety instructions that ac...

Страница 9: ...or burnt cables should be repaired immediately Installation Disassembly Maintenance and Repair of the Unit The machine must not be tampered with when in operation Turn off power to the unit when main...

Страница 10: ...Differenzialschalters an der Stromversorgungsleitung Der Installateur ist verpflichtet einen speziellen Differenzialschalter an der Stromversorgungsleitung des Ger ts anzubringen Brandgefahr bei Verw...

Страница 11: ...f nicht an dem Ger t herumhantiert werden Schalten Sie das Ger t aus wenn Wartungsarbeiten oder Reparaturen am Ger t durchgef hrt werden m ssen Nehmen Sie keine Erweiterungen vor und installieren Sie...

Страница 12: ...allation d un interrupteur diff rentiel sur la ligne d alimentation lectrique L installateur a l obligation de monter un interrupteur diff rentiel sp cifique sur la ligne d alimentation lectrique de l...

Страница 13: ...ne La machine ne devra pas tre manipul e lorsqu elle fonctionne teignez l alimentation de la machine pendant les travaux de maintenance ou de r paration N effectuez pas d agrandissement et n installez...

Страница 14: ...taken to prevent malfunctions due to improper loading or unloading of the unit When lifting the equipment always use a pallet truck or forklift Keep the unit dry and protected from the elements while...

Страница 15: ...or in the FISAIR DFRA series dehumidifiers where the material adsorbs water vapour from the air passing through it The reactivation air circuit is heated by a heating component and passes through the...

Страница 16: ...t Heating coil PROCESS AIR DRY AIR FAN 00 No process dry air fan SF STANDARD fan PF POWERED fan PS Plug Fan for DFRA serie PP Multiple Plug Fan Wall Fan PT Multipl Plug Fan Tandem Plug Fan REACTIVATIO...

Страница 17: ...actuators Electrical 0 10V Profibus Gateway AV03 Steam reactivation advanced control AV17 Advanced steam reactivation control and one actuator Electrical 0 10V AV39 Advanced steam reactivation contro...

Страница 18: ...l current for the equipment Reactivation heater type and power Reactivation heater maximum pressure if applicable Pre cooling battery BF1 fluid and temperature if applicable Pre cooling battery BF1 ma...

Страница 19: ...ctrical information Equipment model Serial number Electrical power connection Nominal power for the equipment Nominal current for the equipment Electrical wiring number Name of the PLR configuration p...

Страница 20: ...r Manual DFRA Series 20 Figure 3 DFRA series machine ratings plate location on left side visible from the outside Figure 4 DFRA series electric panel ratings plate location on control panel after open...

Страница 21: ...User Manual DFRA Series 21 6 Main components Figure 5 DFRA E series main components Figure 6 DFRA V series main components 2 3 4 11 8 10 6 7 1 5 9 5 1 8 9 11 2 6 4 3 7 10...

Страница 22: ...centrifugal type air with forward curved blades with direct drive asynchronous motor 5 Process air control damper 6 G4 process air filter 7 Reactivation wet air fan single gear centrifugal type with f...

Страница 23: ...he process intake 2 C to 55 C Relative humidity range for the process intake Without restrictions Dry Bulb temperature range of the reactivation intake 10 C to 55 C Relative humidity range for the rea...

Страница 24: ...silica gel 11 Seawater Decreases the performance of silica gel 12 High temp steam Dissolves the silica gel 13 Plasticiser Obstructs silica gel pores 14 Strong acid pH 2 3 and lower Decreases the mech...

Страница 25: ...Temperature humidity conditions in the installation area 15 C emp 50 C RH 95 9 2 Service space It is important to take due account of service space when installing the unit This space is necessary fo...

Страница 26: ...User Manual DFRA Series 26 DFRA V standard service area dimensions...

Страница 27: ...ODELO DFRA A B C D E F G H 0065 0100 0130 0160 0175 0200 0230 0300 0400 0500 0650 0900 1750 1920 1940 400 1200 400 500 500 900 1880 2050 600 1000 300 450 450 850 2070 800 1650 600 800 800 1000 2040 21...

Страница 28: ...User Manual DFRA Series 28 DFRA E standard service area dimensions...

Страница 29: ...ODELO DFRA A B C D E F G H 0065 0100 0130 0160 0175 0200 0230 0300 0400 0500 0650 0900 450 1650 1300 1350 1600 400 1200 400 500 500 900 1350 1350 600 1000 300 450 1350 800 1000 1450 1450 1000 1450 500...

Страница 30: ...User Manual DFRA Series 30 DFRA G standard service area dimensions...

Страница 31: ...User Manual DFRA Series 31 DFRA MODEL A B C D E F G H 0400 1500 500 400 600 900 2550 2375 800 0500 0650 1700 600 500 800 1000 2650 2750 1000 0900...

Страница 32: ...atter e g leaves insects and rainwater The external air intake and the wet air outlet must be kept separate minimum 3m so as not to affect the equipment performance Provision must be made for the remo...

Страница 33: ...ted water or gas the thermal fluid supply must be connected according to the regulations applicable in each case and according to good practice The fluid transport pipes will carry de aerators traps f...

Страница 34: ...6 52 32 63 17 DFRA 0500 1080 27 03 32 94 39 55 49 19 44 97 55 58 66 73 83 00 DFRA 0650 1350 35 40 42 64 50 50 62 00 58 90 71 95 85 21 104 62 DFRA 0900 1800 42 94 52 73 66 60 81 08 71 45 88 97 112 38 1...

Страница 35: ...recommended assembly diagram for the fuel gas burner supply is attached GAS BURNER INSTALLATION SCHEME 1 NATURAL GAS LPG LINE 2 GAS SUPPLY CUT OF VALVE 3 LOTO OPTIONAL SUPPLY DEVICE 4 MINIMUM GAS SAFE...

Страница 36: ...40mbar 20 40mbar 20 40mbar q v Natural gas 3 2Nm h 4 0Nm h 5 0Nm h 7 0Nm h q v Propane gas 1 4Nm h 1 8Nm h 2 2Nm h 2 9Nm h Chamber pressure 150Pa 150Pa 150Pa 150Pa Diaphragm 160x270 160 x 295 160 x 3...

Страница 37: ...air water heat exchangers with copper tubes and aluminium fins The nominal values for cooling batteries are calculated with a standard temperature jump in water of 5 C entering at 7 C and exiting at 1...

Страница 38: ...for pre cooling and post cooling heating batteries Typical installation for constant flow Typical installation for constant flow with water glycol for risk of condensed water freezing on the surface...

Страница 39: ...39 BF1 Pre heating battery BR Reactivation battery B2 Post heating cooling batteries ST Temperature probe C Temperature controller Sends a signal to the motor if adjustment is required MV Motor valve...

Страница 40: ...equipment must be connected to the mains network by a line protected against short circuits and earth faults in the cables whose cross section and sensitivity must correspond to the equipment power an...

Страница 41: ...Figure 12 Terminal block X1 for DFRA E V equipment with PLR series 650 900 Figure 13 Terminal block X1 for DFRA E equipment without PLR series 100 500 Figure 14 Terminal block X1 for DFRA V equipment...

Страница 42: ...nformation about the equipment status The SEF 013 consists of 3 relays NC NA identified on the terminal block as Rx1 Rx2 and Rx3 There is a correspondence with the SEF 013 remote signalling card and t...

Страница 43: ...nfigurations S P M H1 Terminals 22 23 Terminals 24 27 H2 Terminals 24 25 Terminals 24 28 H3 Terminals 24 29 If the equipment has PLR please refer to the MMCSA DFRA Series Operating and Control Manual...

Страница 44: ...ure drop table to obtain the nominal process air flow B Plug type fan variable speed The air flow rate is adjusted manually using the potentiometer installed in the unit panel Use the pressure taps on...

Страница 45: ...810 213 DFRA 0500 3600 228 1080 296 DFRA 0650 4500 167 1350 223 DFRA 0900 6000 243 1800 314 IMPORTANT The reactivation fan has been designed to overcome a certain pressure or load loss If this pressu...

Страница 46: ...gement depends on the pressure differential to be measured either between the plenum and suction side of the fan pressure difference for calculating volume flow or between drive plenum and P atm Pa Th...

Страница 47: ...n type can be done with the following equation 1 2 Where Q stands for the air flow in m3 h is the density of the air through the fan in kg m3 is the differential pressure in Pa measured between the su...

Страница 48: ...nd easier operation of the management and supervision of the dehumidifier Figure 18 Types of control panels I1 Isolator switch depending on model and size I2 MANual 0 AUTOmatic switch SEF 004 Status s...

Страница 49: ...ehumidifier 3 The SEF 004 status signal card is as follows 1 Yellow equipment is live 2 Red alarm fault equipment failure 3 Green equipment is running 4 Green reactivation motor fan is operating 5 Red...

Страница 50: ...has reached its operating levels at least 30 minutes make the relevant temperature and humidity measurements It is very important to verify the direction of rotation of the rotor shown in figure 1 of...

Страница 51: ...eration Inspection of the dry air fan impeller process Every 2000 hours of operation Internal inspection desiccant rotor surfaces tension belt presence of foreign bodies etc Every 8900 hours of operat...

Страница 52: ...scopic salt desiccant rotor Lithium Chloride that it can be washed with water Normally ordinary dust particles must be removed with a vacuum cleaner when necessary The frequency of cleaning will depen...

Страница 53: ...washing them correctly or by replacing them since dirty filters will affect the dehumidifier s performance Follow these steps when cleaning or replacing the filters 1 Turn off the dehumidifier and wai...

Страница 54: ...t is operating it must be stopped To do this set selector I2 to zero stop and wait five minutes until the two fans stop completely Then set the switch I1 to position 0 to turn off the power supply See...

Страница 55: ...e varies with the model as indicated below DFRA 100 130 160 175 200 230 and 300 The power cord and the ground wire must be disconnected if applicable Remove the tension spring with its attachment scre...

Страница 56: ...User Manual DFRA Series 56 DFRA 400 and 500 Remove the tension spring with its attachment screw 7 Turn the entire geared motor unit on the shaft A until the belt 9 is released from the pulley 10...

Страница 57: ...User Manual DFRA Series 57 DFRA 650 and 900 Before releasing the tension spring with its attachment screw the screws 13 of the support bracket 14 must be loosened See figure 2...

Страница 58: ...g with its attachment screw 7 Then turn the support bracket 14 to release the belt 9 Turn the entire geared motor unit on the shaft A until the belt 9 is released from the pulley 10 Figure 2 Sheave pu...

Страница 59: ...inally locate the metal articulated joint 8 that joins the two ends of the belt 9 which can be released or cut The belt and the articulated joint should be replaced Remove the equipment belt This step...

Страница 60: ...s should not protrude more than 1 mm to avoid rubbing against the rotor 2 The belt 9 must then be wound around the rotor See specific belt length L according to model in Table 1 Table 1 To finish coup...

Страница 61: ...the belt 9 around the pulley channel 10 in reverse order to the disassembly section step 3 no 14 1 1 The belt should be aligned parallel to the seals 5 Position the tension spring using the attachment...

Страница 62: ...red motor for a few seconds 7 Stop the machine by setting selector I2 to position 0 stop Wait until the fans come to a complete stop Turn off isolator I1 8 Remove the cover again and check whether the...

Страница 63: ...and 14 1 2 8 must be repeated until the right dimensions are obtained in the spring tensioner If not the process should be repeated until they are obtained 10 Reconnect the earth cable and power cabl...

Страница 64: ...und the pulley channel 10 in reverse order to the disassembly section step 3 14 1 1 The belt should be aligned parallel to the seals 3 Position the tension spring using the attachment screw 7 so that...

Страница 65: ...he support bracket bolts 13 until the belt is properly tensioned See table 3 Table 3 5 Replace the front cover on the base unit 6 Position the front cover by moving it with the handles and screwing it...

Страница 66: ...User Manual DFRA Series 66 15 Declaration of conformity...

Страница 67: ...User Manual DFRA Series 67 16 Guarantee...

Страница 68: ...User Manual DFRA Series 68...

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