fisair DFRA Series User manual

FISAIR S.L. C/Uranio, 20; PoI. Ind. Aimayr, 28330 San Martín de la Vega (Madrid) España.
Tel: [phone] Fax: [phone] | [e-mail]| fisair.com
USER MANUAL
DFRA SERIES
MUSA-EN-19-2
In compliance with the Rules and Standards of the European Union on Machine Safety,
it is essential to read this protocol carefully before installing any equipment

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2
Contents
1. Introduction. ...........................................................................................3
2. Safety Instructions..................................................................................4
3. Transport and storage............................................................................5
4. Operating principle .................................................................................6
5. Identification and coding of the model or equipment...............................7
5.1 Rating plates.................................................................................................9
6. Main components.................................................................................12
7. Operating limits ....................................................................................14
8. Components technical data..................................................................15
8.1 Rotor...........................................................................................................15
9. Installation............................................................................................16
9.1 Location.......................................................................................................16
9.2 Service spaces............................................................................................16
9.3 Air ducts......................................................................................................23
9.4 Connecting thermal fluids: steam reactivation battery..................................24
9.5 Connecting the fluid fuel conduit to the gas reactivation heater...................26
9.6 Connecting thermal fluids: additional batteries.............................................28
9.7 Connection to the mains power supply........................................................31
9.8 Control and signalling connections..............................................................33
9.9 Flow adjustment..........................................................................................35
10. Commissioning.....................................................................................38
11. General maintenance...........................................................................41
12. Maintaining of the desiccant rotor.........................................................42
13. Maintaining of the air filters...................................................................43
14. Maintaining of the traction system ........................................................44
14.1 Traction belt replacement (disassembly and assembly)...............................44
14.1.1 Disassembly..........................................................................................44
14.1.2 Assembly ..............................................................................................50
15. Declaration of conformity......................................................................56
16. Guarantee............................................................................................57

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1. Introduction.
Dear Customer,
To ensure the correct operation of your DFRA dehumidifier, please read this Manual
carefully and retain it for future consultation.
If there is any part of this document that you do not understand, or if you have any
questions about your dehumidifier, please contact us:
FISAIR, S.L.U.
Tel.: [phone] –Madrid –SPAIN
Fax: [phone] –Madrid –SPAIN
Email address www[email protected]m
Or contact your local distributor.
IMPORTANT!
The correctuseofthe dehumidifier includesfollowing our instructionsfor installation, set-
up, operation and maintenance, as well as following the steps indicated in the
instructions in the correct sequence as described.
This dehumidifier may only be used by persons who are fully qualified and authorized to
do so.
Any person who transports and/or used the unit or who works with it must read and
understand the relevant section of this manual, in particular the section entitled "Safety
Instructions".
You are advised to keep a copy of the user manual in the place where the dehumidifier
is going to operate (or nearby).
Ignoring these instructions may invalidate all applicable guarantees and warranties.

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2. Safety Instructions
Please read these safety notes carefully and examine the equipment to become familiar
with it before installing, commissioning or servicing.
The following symbols or messages may appear in this document or on the equipment.
They warn of potentialhazards or provide information that may help you clarify orsimplify
a procedure.
Attention, Live Current
The presence of this symbol on a hazard or warning label indicates that there
is a risk of electrocution, which can lead to personal injury or life-threatening
conditions if the instructions are not followed.
Attention
This is a safety alert symbol. It warns of the potential of bodily injury.
Observe all safety information with this symbol to avoid any situation that could
lead to injuries and/or damage to the unit.
General points
If you notice that something is not working properly, switch off the unit
immediately and take steps to ensure that it does not switch on again. All faults
must be corrected immediately.
Use duly qualified personnel to carry out repair work. This will ensure that the unit
operates safely.
Use only original FISAIR replacement parts.
Refer to local regulations that restrict or regulate the use of this dehumidifier.
How the unit works
Do not jeopardise the safety of the unit.
Periodically check the device's protection and alert devices.
The unit's safety fittings must not be removed or disabled.
Installing, Disassembling, Maintaining and Repairing the unit
Switch off the unit's power supply when conducting maintenance work or making
repairs to the unit.
Never add components to the unit without prior written approval from FISAIR.

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About the electrical components
Any work that affects the electrical components must be carried out by qualified
electricians.
Switch off the power supply and ensure that it does not re-connect while any
electrical component is being handled.
Switch off the unit immediately if any fault is detected in the electrical power
supply.
Use only original, correctly calibrated fuses.
Carry out periodic checks of the electrical unit.
All defects, such as loose connections or burnt cables, must be repaired
immediately.
About the risk of fire due to the use of inappropriate materials
There is a risk of fire due to the entry of combustible or infamous materials
in solid or liquid or gaseous state (in the reactivation and process air inlets).
Ignoring these instructions may invalidate all applicable guarantees and
warranties.
3. Transport and storage
When in transit, the unit must be protected from impacts of any kind, and all possible
measures must be 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 in storage.
The unit must be stored in a location where the ambient temperature is between -20ºC
y 60ºC and with a relative humidity of no more than 80%.

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4. Operating principle
The FISAIR DFRA series air dehumidifiers operate on the basis of a substance (silica
gel) which adsorbs moisture from the air, and is configured as a cylinder with many small
channels of this material in the same direction as the air advances.
The front surfaces of the bases of this cylinder aredivided into two zones: one is intended
to carry out the drying process, and the other to regenerate or reactivate the desiccant.
The large contact surface area of air/desiccant material within this configuration enables
an effective drying process to be achieved with a minimum volume of material.
The dry/process air circuit occupies 75% (270°) of the surface area of the cylinder base
in the FISAIR DFLEX 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 cylinder in the opposite direction to the process air,
and extracts moisture from the material in contact with it; thus regenerating it for a new
cycle.
A rotating device (low power gearmotor with a V-belt drive on the perimeter) ensures the
drying process is continuous and uniform.
The system design is completed with a set of joints separating the two air circuits and
rotor perimeter; thus ensuring separation between air flows.
Figure 1. Operating principle of drying by adsorption rotor.
Calentador de
reactivación
Aire
seco
Aire de
reactivación
Sector de
reactivación
Aire
mojado
Rotor
desecante
Aire de
proceso
Reactivation
sector
Reactivation
heater
Reactivation air
Dry air
Moist air
Process air
Desiccant rotor

CODING
PRODUCT
DFRA / DFLEX
SERIES DFRA- DFLEX
MODEL
REACTIVATION SYSTEM
E= Electric coil
A
=Coil for hot water
S
=Hot Water coil + electric coil
V= Coil for saturated steam
H=
Stainless steel coil for saturated steam
D= Saturated steam coil + electric coil
X= Stainless steel coil for saturated steam+ electric coil
G= Direct Gas
PROCESS AIR FILTERS
00 = Without filters
G0 = 1 Filters stage class G4 (EN779:2012)
GF = First stage class G4 filters and second stage class F9 (EN779:2012)
C0 = 1 stage of filters of a specific class other than G4 (EN779:2012)
0F = 1 Filters stage class F9 (EN779:2012)
CC = Two stages of filtering other than G4F9(EN779:2012)
REACTIVATION AIR FILTERS
00 = Without filters
G0 =1 Filter stage class G4 (EN779:2012)
GF = First stage class G4 filters and second stage class F9 (EN779:2012)
C0 = 1 stage of filters of a specific class other than G4 (EN779:2012)
0F =1 Filter stage class F9 (EN779:2012)
CC = Two stages of filtering other than G4F9(EN779:2012)
PRE-HEATING
00 =
No pre-heating
WE = ECO pre-heating coils for hot water.
WS =
STANDARD pre-heating coil for hot water.
WH = Water High Power Heating Coil
CW = Custom pre-heating coil
PRE-COOLING
00 =
No pre-cooling
WE = ECO pre-heating coil for cold water.
WS = STANDARD pre-cooling coil for cold water.
WH = High-power pre-cooling coil for cold water.
DS =
STANDARD pre-cooling coil for direct expansion.
CW = Custom pre-cooling coil
POST-COOLING
00 = No post-cooling
WE = ECO post-cooling coil for cold water.
WS = STANDARD post-cooling coil for cold water.
WH = High-power post-cooling coil for cold water.
DS =STANDARD post-cooling coil for direct expansion.
CW =
Custom Post-cooling coil
POST-HEATING
00 = No post-heating
WE = ECO post-heating coil using hot water.
WS = STANDARD post-heating coil using hot water.
WH = Water High power heating Coil
CW = Custom Post-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)
REACTIVATION AIR / MOIST AIR FAN
SF = STANDARD fan
PF = POWERED fan
DRY AIR FILTER
000  = Without final filter at dry air
H13 = HEPA H13 (EN 1822:2011) filter fitted after the process air/dry air fan (requires a Plug-Fan ventilator)
H14 = HEPA H14 (EN 1822:2011) filter fitted after the process air/dry air fan (requires a Plug-Fan ventilator)
FH3 = Class F9 EN 779: 2012 /ePM185 ISO16890 + HEPA H13 (EN 1822:2011). Filter fitted after the process air/dry air fan (requires a Plug-Fan ventilator)
FH4 = Class F9 EN 779: 2012 /ePM185 ISO16890 + HEPA H14 (EN 1822:2011). Filter fitted after the process air/dry air fan (requires a Plug-Fan ventilator)
SENSITIVE HEAT RECOVERY UNIT
0=
Without heat recuperator. No by-pass in desiccant rotor.
R= Static heat recuperator installed in the discharge of wet air.
D= By-pass air damper in descending rotor.
M= Static heat recuperator installed in the discharge of wet air. By-pass air damper in descending rotor.
FINISHING
00 = Standard production of components. Protection grade IP50 and finished with RAL7035 colour.
0R = Standard production of components. Protection grade IP50 and finished with specific colour (RAL____).
K0 = Standard production of components. Protection grade IP54 and finished with RAL7035 colour.
KR = Standard production of components. Protection grade IP54 and finished with specific colour (RAL____).
Rev01 19-12-18
CONTROL
OTHER SPECIAL
DFRA-0900
0300
0400
0500
0650
0900
0175
2100
0200
2900
0230
3500
0100
1100
0130
1300
0160
1700
E
GF
H14
R
KR
GF
WS
WS
WS
WS
405
AE04
0
FANS
DRY AIR FINAL FILTER
HEAT RECOVERY
FINISHING
ELECTRICAL POWER SUPPLY
SF
SF
REACTIV. SYST.
PROCESS AIR INITIAL FILTER
REACTV. AIR INITIAL FILTER
PRE-COILS
POST-COILS

CODING
PRODUCT
DFRA / DFLEX
POWER SUPPLY OPTIONS (NOT INCLUDED IN MECHANICAL DRAWINGS)
405
=
Standard electrical power supply at 400V ±5% /III/50Hz
N05 =Electrical power supply at 400V ±5% /III/50Hz
406
=
Electrical power supply at 400V ±5% /III/60Hz
N06 = Electrical power supply at 400V±5%/III+N/60Hz
445
=
Electrical power supply at 440V ±5% /III/50Hz
N45 = Electrical power supply at 440V±5%/III+N/50Hz
446
=
Electrical power supply at 440V ±5% /III/60Hz
N46 = Electrical power supply at 440V±5%/III+N/60Hz
466
=
Electrical power supply at 460V ±5% /III/60Hz
N66 = Electrical power supply at 460V±5%/III+N/60Hz
235
=
Electrical power supply at 230V ±5% /III/50Hz
236
=
Electrical power supply at 230V ±5% /III/60Hz
CONTROL OPTIONS (NOT INCLUDED IN MECHANICAL DRAWINGS)
BE00
= Basic ON/OFF control with electric heater for reactivation.
BV00
=
Basic ON/OFF control with saturated steam heater for reactivation.
AE13
= Advanced electrical reactivation control and one actuator. (Electrical . 0..10V)
AE27
=
Advanced electrical reactivation control and two actuators. (Electrical . 0..10V)
AE49
= Advanced electrical reactivation control and four actuators. (Electrical . 0..10V)
AE57
Advanced electrical reactivation control and five actuators. (Electrical . 0..10V)
AE79 Advanced electrical reactivation control and sevent actuators. (Electrical . 0..10V)
CE27
= Advanced electrical reactivation control and two actuators. (Electrical . (0..10V)+Profibus Gateway
CE49
= Advanced electrical reactivation control and four actuators. (Electrical . (0..10V)+Profibus Gateway
CE57
Advanced electrical reactivation control and five actuators. (Electrical . (0..10V)+Profibus Gateway
CE79 Advanced electrical reactivation control and sevent 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 control and three actuators. (Electrical . 0..10V)
AV47 Advanced steam reactivation control and four actuators. (Electrical . 0..10V)
AV69 Advanced steam reactivation control and six actuators. (Electrical . 0..10V)
CV17
= Advanced steam reactivation control and one actuator (Electrical 0..10V) + Profibus Gateway.
CV39
= Advanced steam reactivation control and three actuators. (Electrical . (0..10V)+Profibus Gateway
CV47
Advanced steam reactivation control and four actuators. (Electrical . (0..10V)+Profibus Gateway
CV69 Advanced steam reactivation control and six actuators. (Electrical . (0..10V)+Profibus Gateway
AG03
= Gas reactivation advanced control.
AG17
= Advanced gas reactivation control and one actuator. (Electrical . 0..10V)
AG39
= Advanced gas reactivation control and three actuators. (Electrical . 0..10V)
AG47 Advanced gas reactivation control and four actuators. (Electrical . 0..10V)
AG69 Advanced gas reactivation control and six actuators. (Electrical . 0..10V)
CG17
= Advanced gas reactivation control and one actuator (Electrical 0..10V) + Profibus Gateway.
CG39
= Advanced gas reactivation control and three actuators. (Electrical . (0..10V)+Profibus Gateway
CG47 Advanced gas reactivation control and four actuators. (Electrical . (0..10V)+Profibus Gateway
CG69 Advanced gas reactivation control and six actuators. (Electrical . (0..10V)+Profibus Gateway
OTHER SPECIAL OPTIONS
C = Accessories that can be built-in subject to specification and preliminary study.
Example:
DFRA-0500V GFGF 00WS WE00 SFSF 000 R00 405BV000
CONTROL
OTHER SPECIAL
FANS
DRY AIR FINAL FILTER
HEAT RECOVERY
FINISHING
ELECTRICAL POWER SUPPLY
REACTIV. SYST.
PROCESS AIR INITIAL FILTER
REACTV. AIR INITIAL FILTER
PRE-COILS
POST-COILS

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5.1 Rating plates
The rating plates provide essential information about the technical features of the
machine.
The EC Machinery Safety Regulation requires all machinery operated within the
European Economic Community to have a rating plate indicating its main features, the
machine serial number and the manufacturer's name inscribed in a durable manner.
The DFRA series has two types of plates:
The larger main plate is located on the outside of the housing of the electrical
panel for the basic unit, near the circuit breaker. It states:
-Equipment model
-Serial number
-Electrical power connection
-Nominal power for the equipment
-Nominal 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 maximum pressure (if applicable).
-Pre-heating battery BC1 fluid and temperature (if applicable).
-Pre-heating battery BC1 maximum pressure (if applicable).
-Post-cooling battery BF2 fluid and temperature (if applicable).
-Post-cooling battery BF2 maximum pressure (if applicable).
-Post-heating battery BC2 fluid and temperature (if applicable).
-Post-heating battery BC2 maximum pressure (if applicable).
-Heat recovery maximum power (if applicable).
-Process air design flow rate.
-Dry air fan motor, maximum power and current.
-Nominal flow rate, reactivation air.
-Reactivation fan motor, maximum power and current.
-Place and date of manufacture.

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The smaller plate is inside the electrical panel and contains the most relevant
electrical information:
-Equipment model
-Serial number
-Electrical power connection
-Nominal power for the equipment
-Nominal current for the equipment.
-Electrical wiring number
-Advanced interface or programmable control components configuration
programme.
-Place and date of manufacture
Figure 2. Example of a DFRA series ratings plate

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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 opening)

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6. Main components
Figure 5. DFRA-E series main components
Figure 6. DFRA-V series main components
2
34
11
8
10
6
7
1
5
9
5
18
9
11
2
6
4
3
710

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Figure 7. DFRA-G series main components
1. Basic unit, made of painted galvanised sheet steel, with internal compartments
for air circuits and removable covers.
2. Desiccant rotor.
3. Rotor gearmotor.
4. Process/dry air fan, single ear centrifugal type air with forward curved blades,
with direct drive asynchronous motor.
5. Process air control flap.
6. G4 process air filter.
7. Reactivation/wet air fan, single ear centrifuge type with forward curved blades,
with direct drive asynchronous motor.
8. Reactivation air control flap.
9. G4 reactivation air filter.
10. Control and protection electrical board.
11. Air heater, according to the reactivation system (electric, steam, gas).
1
5
11
I
8
9
0
6
24
0
10
3
7

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7. Operating limits
The unit's performance features will be affected by the working conditions. If your
unit needs to be operated under other working conditions, please contact FISAIR
S.L.U.
Parameters
FISAIR Dehumidifier Series
DFRA
Temperature range of the process
intake dry bulb.
2°C to 55°C
Relative humidity range for the
process intake
Without restrictions
Temperature range of the
reactivation intake dry bulb.
-10°C to 55°C
Relative humidity range for the
reactivation intake
Without restrictions
Designed to be installed in locations
exposed to sunlight and rain.
(3)
Temperature range in the area
where the unit is to be installed
-10°C to 50°C
Relative humidity range in the area
where the unit is to be installed
< 95%
(3) Available on special order.

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8. Components technical data
8.1 Rotor
Rotor desiccant (Silica Gel) chemical resistance
Attention: The following chemicals will damage the ROTOR DESICCANT
(SILICA GEL) or reduce its dehumidifying capacity.
Note: Using the belowchemicals with FISAIR DFLEX air dehumidifiers may
invalidate the guarantee.
INORGANIC COMPONENTS
COMPONENTS
FORMULA
EFFECT
1
Lithium Chloride
LiCl
Obstruction of pores by absorption
2
Sodium Hydroxide
NaOH
Dissolves the silica gel
3
Potassium hydroxide
KOH
Dissolves the silica gel
4
Sodium chloride
NaCl
Decreases the performance of silica
gel
5
Potassium chloride
KCl
Decreases the performance of silica
gel
6
Calcium chloride
CaCl2
Decreases the performance of silica
gel
7
Magnesium chloride
MgCl2
Decreases the performance of silica
gel
8
Ammonia
NH3
Basic gas
9
Hydrogen Fluoride
HF
Fluoride
10
Aluminium chloride
AICl3
Decreases the performance of 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 mechanical properties
of ceramics
ORGANIC COMPONENTS
Please note that you must be careful with the use of the following volatile organic
components, which have a high boiling temperature and a low vapour pressure. Once
the silica gel absorbs these volatile components, it does not release them. This means
that silica gel will not work to remove moisture.
COMPOUND
FORMULA
EFFECT
1
Oil spray
--
Obstructs silica gel pores
2
Cyclohexanone
C6H10O
Decreases the performance of silica gel
3
Isopropyl alcohol
(CH3)2CHOH
Decreases the performance of silica gel
4
o-Xylene
--
Decreases the performance of silica gel
5
m-Xylene
C6H4(CH2)2
Decreases the performance of silica gel
6
p-Xylene
Decreases the performance of silica gel
7
Phenol
C6H5OH
Decreases the performance of silica gel
8
o-Dichlorobenzene
C6H4CL2
Decreases the performance of silica gel
9
Methyl bromide
CH3Br
Decreases the performance of silica gel

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9. Installation
9.1 Location
Before starting to install the unit, the following points need to be considered:
Check the degree of protection with which it is made in the dehumidifier reference
(IP50 run for indoor installation, IP54 run for outdoor installation).
The place selected must be suitable to install the unit. When selecting the place
where the unit is going to be installed, one must take due account of the
dehumidifier's external dimensions and the spaces required for its inspection and
maintenance.
Temperature/humidity conditions in the installation area:
-15°C < Ƭemp < 50ºC // RH <95%
9.2 Service spaces
It is important to take due account of the service spaces when installing the unit. These
spaces are necessary as the following need to be carried out on a periodic basis:
Clean/replace the process and reactivation air filters.
Check the status of the desiccant rotorfan surfaces, air circuit sealing joints, drive
belt and reducer-motor (and, where required, their repair or replacement).
Check that the dry air and moist air motor-fans are working correctly.
Check the reactivation air heater is working correctly.
Gain access to the inside of the control and protection electrical board, and, if
required, carry out repairs

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-DFRA-V standard service area dimensions:

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MODELO 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
2150
1000
1450
500
600
600
900

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-DFRA-E standard service area dimensions

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MODELO 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
600
600
900
850
800
800
600