Originalinstructions
Usermanual
MX²30–95E
Desiccantdehumidifier
withelectricheaterforreactivation
Appliestoallunitsmanufactured
fromweek01,2015.
190TEN–1088–G1412 ©MuntersEuropeAB2015
Importantuserinformation
Intendeduse
Munters dehumidifiers are intended to be used for the
dehumidificationofair.Anyotheruseoftheunit,or
use which is contrary to the instructions given in this
manual, can cause personal injury and damage to the unit
and other proper ty.
No modification of the unit is allowed without prior
approvalby Munters. Attachment or installation
of additional devic es is only allowed after written
agreement by Munters.
Warranty
Thewarrantyp
eriodisvalidfromthedatetheunit
left our f acto
ry, unless otherw ise stated in writing.
Thewarranty
is limited to a free exchange of parts or
components w
hich have failed as a result of defects in
materials o
rworkmanship.
All war ranty claims must include proof that the
fault has occurred within the warranty period an d
that the u n it has been used in accordance with the
specifications. All claims must specify the unit type and
fabrication number. This infor m ation is stamped on the
identification plate, see section Marking.
It is a condition of the war ranty that the unit for the full
warranty period is serviced and maintained by a qualified
Munters engineer or Munter s approved engineer.
Access to specific and calibrated test equipmen t is
necessary. The service and maintenance must be
documented for the warranty to be valid.
Alway s contact Munters for ser vic e or repair. Operating
faults can o ccur if the unit is maintained insufficiently or
incorrectly.
Safety
Information about dangers are in this manual indicated
by the common hazard symbol:
WARNING!
Indicatesapossibledangerthatcanleadtopersonalinjury.
CAUTIO N!
Indicatesapossibledangerthatcanleadtodamagetothe
unitorotherproperty,orc auseenvironmentaldamage.
NOTE!
Highlightssupplementaryinformationforoptimal
useoftheunit.
ConformitywithDirectives
The dehumidifier is in conformity with the essential
safety requirements of the Machinery Directive
2006/42/EC, and in conformity with the provisions
of the Ecodesign Directive (ErP) 2009/125/EC, the
Ecodesign Directive for electric motors 2005/32/EC
and of the EMC Directive 2014/30/EU. The
dehumidifier is manufactured by an organization
certified according to ISO 9001 and ISO 14001.
Copyright
The contents of this manual can be changed without
prior notice.
NOTE!
Thismanualcontainsinformationwhichis
protectedbycopyrightlaws. Itisnotallowedtoreproduceor
transmitanypartofthismanualwithoutwrittenconsentfrom
Munters.
Please send any co mments regarding this manual to:
Munters Euro pe AB
Technical Documentation
P.O. Box 1150
SE- 164 26 KISTA Sweden
e-mail: t-doc@munters.se
ii
Importantuserinformation
190TE N–1088–G141 2
Tableofcontents
Importantuserinformation ............... ii
Intendeduse ...........................
ii
Warranty ...............................
ii
Safety ..................................
ii
ConformitywithDirectives ............
ii
Copyright ..............................
ii
Tableofcontents ........................... iii
1 Introduction ................................. 1
1.1 General ................................
1
1.2 Aboutthismanual .....................
1
1.3 Safetyandcautions ...................
1
1.3.1 Safetylabels ...................
2
1.4 Operationmonitoring .................
2
1.5 Applicationlimitations .................
3
1.6 Faultindications .......................
3
1.7 Marking ................................
4
1.7.1 Identificationplate .............
4
1.7.2 Pressuretestpoints ...........
4
2 Dehumidifierdesign ....................... 5
2.1 Productdescription ...................
5
2.2 Principleofoperation ..................
5
2.3 Maincomponents,MX²30 ............
7
2.4 Maincomponents,MX²35–95 .......
9
2.5 Hightemperaturecut-out .............
11
2.6 Configurationfeatures ................
12
2.6.1 Insulatedprocessairinlet .....
12
2.6.2 Processfancontrol ............
12
2.6.3 Bypassdamper ................
13
2.6.4 EnergyRecoveryPurgeand
EnergyEfficiencyPurge .......
14
2.6.5 LowDewpointPurge ..........
15
2.6.6 Pre-reactivationheater ........
16
3 Installation ................................... 18
3.1 Safety ..................................
18
3.2 Movingthedehumidifier ..............
18
3.3 Inspectionofdelivery ..................
18
3.4 Storingthedehumidifier ..............
19
3.5 Siterequirements .....................
19
3.6 Foundation ............................
20
3.7 Ductinstallation .......................
21
3.7.1 Generalrecommendations ...
21
3.7.2 Ductforoutdoorairinlet .......
22
3.7.3 Ductforwetairoutlet ...........
22
3.7.4 Ductconnectiondimensions,
airinlets ........................ 23
3.7.6 Ductconnectiondimensions
(unitwithoutprocessfan) ......
24
3.7.7 Ductconnectiondimensions,
processfan ....................
25
3.7.8 Ductconnectiondimensions,
reactivationfan ................ 26
3.8 Hotwatercoilforpre-reactivation
heater ..................................
27
3.9 Steamcoilforpre-reactivation
heater ..................................
28
3.9.1 Componentsforsteam
pre-reactivationheater ........
31
3.9.2 Steamquality ..................
32
3.10 Electricalconnections ................
33
3.11 Externalhumiditytransmitter .........
33
4 Commissioning ............................. 34
4.1 Pre-startchecks ....................... 34
4.2 Airflowadjustment ....................
34
4.2.1 General .........................
34
4.2.2 Settingtheratedairflows ......
35
4.2.3 Readjustingtheairflow ........
35
4.2.4 Baseconfigurationsettings ...
36
4.3 Set-upandtestofpre-reactivation
heater ..................................
37
4.3.1 Hotwatercoil ...................
37
4.3.2 Steamcoil ......................
37
5 Operation .................................... 38
5.1 Controlpanel ..........................
38
5.2 General ................................
39
5.3 Safety ..................................
39
5.4 Quickstop ..............................
39
5.5 Operatingtheunit .....................
40
5.5.1 Initialstart-up,Manualmode
(MAN) ...........................
40
190TEN–1088–G1412
Tableofcontents
iii
5.5.2 Initialstart-up,Automaticmode
(AUTO)–regulatingtoset
point ............................
40
6 Serviceandmaintenance ................. 41
6.1 Safety ..................................
41
6.2 Regularserviceandmaintenance ...
41
6.3 Serviceoptions ........................
42
6.4 Extendedwarranty ....................
42
6.5 Serviceindicatorlamp ................
42
6.6 Serviceandmaintenanceschedule
(0–24000hours) .......................
43
6.7 Serviceandmaintenanceschedule
(28000–48000hours) .................
44
6.8 Airfilterreplacement ..................
45
6.9 Hotwatercoilforpre-reactivation
heater .................................. 47
6.10 Steamcoilforpre-reactivation
heater ..................................
48
7 Faulttracing ................................. 49
7.1 Safety ..................................
49
7.2 Faulttracinglist,dehumidifier ........
50
7.3 Faulttracinglist,steam
pre-reactivationheater ................
52
8 Technicalspecification .................... 53
8.1 Capacitydiagrams ....................
53
8.2 Noisedata ............................. 55
8.2.1 Noisetoroom ..................
55
8.2.2 Noiseinducts ..................
57
8.3 Dimensionsandservicespace ......
59
8.3.1 Dimensions ....................
59
8.3.2 Dimensions(unitwithout
processfan) ....................
60
8.3.3 Servicespace ..................
63
8.4 Technicaldata .........................
64
8.5 Technicaldata,
steampre-reactivationheater ........
66
9 Scrapping .................................... 67
10 ContactMunters ............................ 68
iv
Tableofcontents
190TE N–1088–G141 2
1 Introduction
1.1 General
Munters manufactures a w ide range of e fficient dehumidifiers designed for different uses and applications.
Contact your nearest Munters office if you have any questions reg a rding the installat ion or the use of your
dehumidifier.
For product data, see section Technical specification.
1.2 Aboutthismanual
This manual contains necessary information for how to install and use the dehumidifier in a safe and
efficient way. Operation instructions for the control system can be f ound in a separate supplement, also
delivered with t he dehumidifier.
NOTE!
Makesuretoreadallrelevantpartsofthismanualbeforeoperatingorperforminganyworkonthe
dehumidifier. Thismanualshouldbestoredinapermanentlocationclosetothedehumidifier.
1.3 Safetyandcautions
Every measure has been taken in the design and manufacture of the dehumidifier to ensure that it meets the
safety requirements of the directives and standar ds listed in the EC Declaration of Conform ity.
The information in this manual shall in no way take precedence over individual responsibilities or local
regulations.
During operation and other work with a machine it is always the responsibility of the individual to consider:
■
The safety of all persons concerned.
■
The safety of the unit and other proper ty.
■
The protection of the environment.
The types of dangers that are indicated in this manual are described in section Important user information.
WARNING!
-Theunitmustnotbesplashedwithorimmersedinwater.
-Theunitmustneverbeconnectedtoavoltageorfrequencyotherthanthatforwhichitwasdesigned. Refertothe
identificationplate. Linevoltagethatistoohighcancauseanelectricalshockhazardanddamagetotheunit.
-Donotins
ertfingersoranyotherobjectsintotheairvents.
-Allelectricalinstallationsmustbecarriedoutbyaqualifiedelectricianandinaccordancewithlocalregulations.
-Thedehumidifiercanrestartautomaticallyafterapowercut. Alwayssetandlockthemainpowerswitchinthe
OFFpositionbeforecarryingoutanyservicework.
-Useonlyapprovedliftingequipmenttopreventpersonalinjuryanddamagetotheequipment.
-AlwayscontactMuntersforserviceorrepair.
190TEN–108 8–G1412
Introduction
1
1.3.1 Safetylabels
The safety labels below are attached to the unit. Make sure that all personnel working with or near the unit
are aware of the meaning of each label.
Figure 1.1 Risk of p ersonal inju ry due to electric shock. Figure 1.2 R isk of personal injury due to hot surfaces.
1.4 Operationmonitoring
Thedehumidifier is controlled and monitored from the control panel on the front of the unit, see section
5.1, Control panel. The HMI (Human M achine Interface) is used to display values and parameters, and t o
input settings and commands to the control system. The HMI is described in the separate supplement.
2
Introduction
190TEN–1088–G1412
1.5 Applicationlimitations
Thedehumidifier conforms to the emission limits of residential, commercial and light-industrial
environments except for the emission limits for harmonics emission (EN 61000-3-12).
As the equipment exceeds the limits for harmonics it must not be used in residential, commercial or
light-industrial environment without taking proper steps regarding the power installation like supplying the
equipment from a dedicated transformer connected to t he high or medium voltage network.
Thedehumidifier conforms to R
sce
33, see Table 1.1.
Harmonic, number Limit (%)
1)
Measured value (%)
18
0,32
3 4 0,24
4 10,7 4,00
5 2,67 0,05
6
7,2
2,09
7
2
0,05
9 1,6 0,02
10 3,1 0,56
11
1,33 0,01
12 2
0,54
PWHD
2)
22
3,1
1)
Measured values valid for R
sce
=33
2)
Partial Weighted Harmonic Distortion
Table 1.1
Thedehumi
difier must only be used in industrial environments (class A) when the HMI is equipped w ith a
touch pa n
el. If the HMI is equipped with a text panel, the dehumidifier can be used in all environments
since t he
text panel is approved according to class B.
Thedehumidifier is intended for indoor installation only.
1.6 Faultindications
Any faults are indicated by the red light on the control panel. The cause of the alarm is indicated on the
display.
190TEN–108 8–G1412
Introduction
3
1.7 Marking
1.7.1 Identificationplate
MX² 35E-55E
MX² 60E-95E
MX² 30E
Figur e 1.3 Position of identification plat e
1005 170XXX XXXXX
4,1 kW
Max
40,6 kW
Munters Europe AB
Isafjordsgatan 1
164 26 Kista, Sweden
M
36 kW
Made in Sweden
Fabr. No.
Fabr. year 2010
3 ~ 400V 50 Hz
Type
IP33
MX² 55E
Figure 1.4 Identification plate, example
Explanation of "Fabr. No" on the identification plate:
10 Year of manufacture 170XXX Article number
05 Week of manufacture XXXXX Serial number
1.7.2 Pressuretestpoints
The built-in pressure t est points are used for measuring pressure drop across components during
basic installation work and inspection of the rotor condition. For airflow adjustment, refer to section
4.2, Airflow adjustment .
MX² 35-55E
MX² 60-95E
MX² 30E
Figure 1.5 Label position
TP1
TP2
TP3
TP4
Figure 1.6 Pressu re test points
TP1. Process a ir TP1–TP4. Differential pressure, process air
TP2. Wet air TP2–TP3. Differential pressure, reactivation air
TP3. Reactivation air
TP4. Dry air
4
Introduction
190TEN–1088–G1412
2 Dehumidifierdesign
2.1 Productdescription
The desiccant dehumidifier has been designed to effectively dehumidify the air in environments requiring
low air humidity.
All functional components are enclosed in a corrosion resistant Aluzink
®
casing (standard) or stainless steel
casing (option) which makes installation and maintenance easy. The unit is constructed on a steel base frame
which allows the use of a fork-lift truck during transportation and installation.
The electrical control system complies with standard EN 60204-1. The electrical components are mounted
on bus bars. The dehumidifier is manufactured according to E uropean standards and the established
requirements for CE-marking.
2.2 Principleofoperation
1
4
2
3
Figure 2.1 R otor principle
1. Process air
2. Dr y air
3. Reactivation air
4. Wet air
The desiccant rotor is the adsorption dehumidifying component in the unit. The rot or structure is
comprised of a large number of small air channels.
The desiccant rotor is made of a composite material that is highly effective in attracting and retaining water
vapour. T he rotor is divided in two zones. The airflow to be dehumidified, process air, passes through the
largest zone of the rotor and then leaves the rotor as dry air. Since the rotor rotates slowly, the incoming air
always meets a dry zone on the rotor, thus creating a continuous dehumidification process.
Theairflow tha t is used to dry t he rotor, r e a c tivation air, is heated. The reactivation air passes through
the rotor in the opposite direction to the process air and leaves the rotor a s wet air (warm, moist air). This
principle enables t he dehumidifier to work effectively, even at freezing temperatures.
190TEN–108 8–G1412
Dehumidifierdesign
5
A
4
A
3
A
2
A
1
A
5
A
6
A
7
Figur e 2.2 Airflow overview
1. Process air
2. Dry air
3. Reactivation air
4. We t air
5. Reactivation fan
6. Rotor
7. Process fan
6
Dehumidifierdesign
190TEN–1088–G1412
2.3 Maincomponents,MX²30
4
13
3
1
2
6
7
8
10
9
16
17
11
12
14
5
15
Figur e 2.3 Exploded view
18
19
15
Figure 2.4 Front view
190TEN–108 8–G1412
Dehumidifierdesign
7
Item No.
Description
1.
Reactivation fan
2.
Filter, reactivation air
3. Filter, process air
4.
Reactivation heater
5.
Cooling fan with filter
6.
Filter, cooling fan
7.
Connector, RJ45
8.
Main power switch
9.
Pressure sensor
1)
10.
Process fan
11.
Duct, bypass damper
1)
12. Rotor
13. Drive m otor, rotor
14.
Safety thermostat (HTCO)
15.
Electrical panel
16.
Control syste
mdisplay
17.
Control panel
18.
Filter guard
19. Sensor, rotor stop
1)
Option
Table 2.1 Main components, MX² 30
8
Dehumidifierdesign
190TEN–1088–G1412
2.4 Maincomponents,MX²35–95
3
14
13
12
10
8
7
6
5
2
11
1
18
17
16
15
4
9
Figur e 2.5 Exploded view
19
20
22
21
Figure 2.6 Front view
190TEN–108 8–G1412
Dehumidifierdesign
9
Item No.
Description
1.
Filter, reactivation air
2.
Control system display
3.
Control panel
4.
Power supply infeed b ox (MX² 60–95E)
5.
Process fan
6.
Duct, bypass damper
1)
7.
Duct, purg e, right
1)
8.
Reactivation heater
9.
Safety thermostat (HTCO)
10.
Electrical panel
11.
Drive motor, rotor
12. Rotor cassette
13.
Duct, purge, left
1)
14.
Filter guard
15.
Plate, bypass
16.
Filter, process air
17.
Reactivation fan (left)
2)
18.
Reactivation fan
19. Connector, RJ45
20.
Main power switch
21. Pressure sensor
1)
22.
Sensor, rotor stop
1)
Option
2)
Only used for reversed assemblies
Tab
le 2.2 Main components, MX² 35–95
10
Dehumidifierdesign
190TEN–1088–G1412
2.5 Hightemperaturecut-out
Thedehumidifier is equipped with safety therm ostats (HTC O:s) w hich prevents it from being overheated
and damaged if the reactivation air becomes too hot.
A thermostat with sensing bulb and capillary tube measures the temperature in the reactivation air duct, in
front of the rotor. The therm ostat has a reset butt on on the t hermostat housing. In a ddition, one (MX² 30,
35) or two bimetal disc thermostats are located on top of the reactivation heater elements.
If the reactivation air temperature exc eeds the therm ostat setting s, the reac tivation heater is switched off an d
the alarm message “React Heater H TC O” is shown on the control panel display.
After an alarm, the safety thermostats must be reset according to the following:
■
Reset the circuit breakers for the reactivation heater on the electrical panel.
■
Press the reset button on the therm ostat housing. See Figure 2.7 for how to access the ther mostat
housing.
Figure 2.7 Location of thermostat housing
190TEN–108 8–G1412
Dehumidifierdesign
11
2.6 Configurationfeatures
This chapter includes infor mation about functions and components that can be added w hen ordering an
MX² dehumidifier.
2.6.1 Insulatedprocessairinlet
All dehumidifier units supplied with pre-cooled process air should have insulated process air inlet. The
process air sector in front of the rotor has an internal lining of isolation to prevent condensation on the unit.
2.6.2 Processfancontrol
The process fan is equippe
d with a frequency converter for controlling the f an speed. The process fan
control can be configure
dasfixed speed or variable speed according to below:
Fixed speed
The frequency conve rter for the process fan is pre-set at t he factory and the process fan always runs with a
constant speed that gives the rated process airflow.
Variable sp eed
The frequency conver
ter for the process fan is controlled either by flow or pressure.
At flow control, a pressure sensor measures the pressure difference over the inlet cone on the process fan. At
pressure control, a pressure sensor measures the air pressure in the dry air duct.
Th e a ctual value from the pressure sensor is calcula ted, tog e the r with the fan coefficient, by the PLC in the
control system. The PLC compares the actual value w ith the set point value and changes the command
signal to the frequency converter if there is a difference b etween the values.
12
Dehumidifierdesign
190TEN–1088–G1412
2.6.3 Bypassdamper
MX² 30
MX² 35-95
Figure 2.8 Handle for bypass damper
An installed bypass damper kit allows a fixed airflow to be us ed when the process airflow exceeds t he
maximum rotor flow capacity. The bypass function consists of an adjustable damper positioned in the
bypass airflow channel. The bypass airflow channel is integ rated with the unit and passes under the rotor.
NOTE!
Thebypassdampershouldonlybeadjustedbyspeciallytrainedpersonnel.
1
2
3
4
6
5
Figur e 2.9 Bypass principle
1. Reactivation air
2. Heated reactivation air
3. Wet air
4. Pr ocess air
5. Dry air
6. Bypassed process air
190TEN–108 8–G1412
Dehumidifierdesign
13
2.6.4 EnergyRecoveryPurgeandEnergyEfficiencyPurge
1
2
3
4
7
6
5
6
Figure 2.10 Principle for Ener gy Recover y Purge and Ener gy Ef ficiency
Purge
1. Reactivation air
2. Heated reactivation air
3. Wet air
4. Pr ocess air
5. Dry air
6. Purge air
7. Warm purge air
Energy Recover y Purge (ERP) and Energ y Efficiency Purge (EEP) are two energy saving solutions that
recycles heat f rom the rotor, after the reactivation section in the rotational direction of the rotor. A minor
part of the reactivation airflow is bypassed to the war m sector of the rotor, before the airflow enters the
reactivation heater. T he airflow is heated up by the rotor and then mixed with the reactivation airflow, after
the r eactivation heater. The recycled heat from the rotor increases the efficiency and reduces the energy
consumption.
Compared to a standard unit, ERP will give the same dehumidification capacity with reduced reactivation
heater energ y. With EEP, the reactivat ion heater energy is the same as in a standard unit, while the
dehumidification capacity is increased.
Thepurge airflow duct on MX² 30 is installed on the rear side of the unit. The purge airflow (ERP, EEP,
LDP)canbeadjustedwithadamperinstalledontheduct.
MX² 30
Figure 2.11 Purge airflow duct
Thepurge airflow duct on MX² 35–95 is located inside the unit and the purge airflow (ERP, EEP) cannot be
adjusted. An a djustable damper for Low Dewpoint Purge is located on top of the unit.
14
Dehumidifierdesign
190TEN–1088–G1412
2.6.5 LowDewpointPurge
2
5
3
6
4
1
7
Figure 2.12 Low Dewpoint Purge principle
1. Reactivation air
2. Heated reactivation a ir
3. Wet air
4. Process air
5. Dry air
6. Warm purge air
7. Adjustable damper
Low Dewpoint Purge (L
DP) is used to enable e xtra low dewpoints. A minor part of the process airflow is
forced through a sma
ller sector of the rotor which, according to the rotor rotation direction, is positioned
directly after the r
eactivation sector. The result is that a part of the process air is taken off (purge air) and the
rotor ma terial is c
ooled down before it is exposed to the dry air outlet sector. The warm purge airflow which
is drawn from the s
maller sector of the rotor passes an adjustable damper and enters the reactivation air just
before the react
ivation heater. This makes drying of the rotor more efficient.
NOTE!
Thepurge
airflowsettingisapplicationdependentandshouldonlybeadjustedbyspeciallytrained
personnelduri
ngthecommissioningtoobtainthedesireddryairdewpoint. Ageneralrecommendationisthatthe
purgeairflowre
presents10%ofthetotalprocessairflow.
MX² 30
MX² 35-95
Figure 2.13 Adjustable damper for Low Dewpoint Pur ge
NOTE!
Theadjustabledamperissetfromthefactoryandshouldonlybeadjustedbyspeciallytrainedpersonnel.
190TEN–108 8–G1412
Dehumidifierdesign
15
2.6.6 Pre-reactivationheater
A pre-reactivat ion heater is an additional heater which fur ther reduces energy costs. It is installed on t he
reactivation air inlet and consists of a heating coil and a control valve with actuator. The heating coil uses
steam or hot water as heating medium and is connected to the plant steam supply or district heating system.
During normal operating conditions the pre-reactivation heater functions as the main heater whereas the
electric reactivation heater is not in use. During peak load periods that require more dehumidification
capacity, or if the heating medium supply becomes insufficient, the built-in regulation equipment s tarts
the electric reactivation heater.
The control valve and a ctuato
r are delivered separately if ord ered, a nd must be installed.
1
2
Figure 2.14 MX² 30 with pre-reactivation heater
1. Filter box, reactivation air
2. Pre-reactivation heater
16
Dehumidifierdesign
190TEN–1088–G1412
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