REMKO LTE 120 Eco Mobile Dehumidifier Instruction Manual
- June 9, 2024
- REMKO
Table of Contents
LTE 120 Eco Mobile Dehumidifier
Operating and installation instructions
REMKO LTE Eco series Dehumidifier
LTE 120 Eco
0300-2022-04 Edition 1, en_GB
Read the instructions prior to performing any task!
R454C
Refrigerant
Read these operating instructions carefully before commissioning / using this
device! These instructions are an integral part of the system and must always
be kept near or on the device. Subject to modifications; No liability accepted
for errors or misprints!
Translation of the original
Table of contents
1 Safety and usage instructions………………………………………………………………………………………………. 4 1.1
General safety notes……………………………………………………………………………………………………….. 4 1.2
Identification of notes………………………………………………………………………………………………………. 4 1.3
Personnel qualifications…………………………………………………………………………………………………… 4 1.4 Dangers
of failure to observe the safety notes…………………………………………………………………….. 4 1.5
Safety-conscious working………………………………………………………………………………………………… 5 1.6 Safety
instructions for the operator……………………………………………………………………………………. 5 1.7 Safety
notes for installation, maintenance and inspection work……………………………………………… 5
1.8 Unauthorised modification and changes…………………………………………………………………………….. 6 1.9
Intended use………………………………………………………………………………………………………………….. 6 1.10
Warranty………………………………………………………………………………………………………………………. 6 1.11 Transport and
packaging………………………………………………………………………………………………… 6 1.12 Environmental protection
and recycling……………………………………………………………………………. 7
2 Technical Data……………………………………………………………………………………………………………………… 8 3 Design and
function……………………………………………………………………………………………………………. 10
3.1 Air dehumidification – general note…………………………………………………………………………………… 10 3.2
Unit description…………………………………………………………………………………………………………….. 13 4
Assembly…………………………………………………………………………………………………………………………… 15 4.1 Setting up the
unit…………………………………………………………………………………………………………. 15 4.2 Unit
transport………………………………………………………………………………………………………………… 15 5 Electrical
wiring………………………………………………………………………………………………………………….. 16 5.1 General
notes……………………………………………………………………………………………………………….. 16 5.2 Electrical wiring
diagram………………………………………………………………………………………………… 16 6
Commissioning………………………………………………………………………………………………………………….. 17 7 Condensate
removal…………………………………………………………………………………………………………… 22 8 Troubleshooting and
customer service……………………………………………………………………………….. 24 9
Shutdown…………………………………………………………………………………………………………………………… 25 10 Care and
maintenance………………………………………………………………………………………………………… 26 10.1 Care and
maintenance…………………………………………………………………………………………………. 26 10.2 Maintenance
protocol…………………………………………………………………………………………………… 28 11 Exploded view of unit and
spare parts………………………………………………………………………………… 29 11.1 Exploded view of the
unit……………………………………………………………………………………………… 29 11.2 Spare parts
list……………………………………………………………………………………………………………. 30 12
Index………………………………………………………………………………………………………………………………….. 32
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REMKO LTE Eco series
1 Safety and usage instructions
1.1 General safety notes
Carefully read the operating manual before commissioning the units for the
first time. It contains useful tips and notes such as hazard warnings to
prevent personal injury and material damage. Failure to follow the directions
in this manual not only presents a danger to people, the environment and the
system itself, but will void any claims for liability.
Keep this operating manual and the refrigerant data sheet near to the units.
The refrigerant used in the system is flammable. If applicable, observe the
local safety conditions.
DANGER! This combination of symbol and signal word warns of a situation in
which there is immediate danger, which if not avoided may be fatal or cause
serious injury.
WARNING! This combination of symbol and signal word warns of a potentially
hazardous situation, which if not avoided may be fatal or cause serious
injury.
CAUTION!
This combination of symbol and signal word warns of a potentially hazardous
situation, which if not avoided may cause injury or material and environmental
damage.
Caution, risk of fire
1.2 Identification of notes
This section provides an overview of all important safety aspects for proper
protection of people and safe and fault-free operation.The instructions and
safety notes contained within this manual must be observed in order to prevent
accidents, personal injury and material damage.
Notes attached directly to the units must be observed in their entirety and be
kept in a fully legible condition.
Safety notes in this manual are indicated by symbols. Safety notes are
introduced with signal words which help to highlight the magnitude of the
danger in question.
DANGER!
Contact with live parts poses an immediate danger of death due to electric
shock. Damage to the insulation or individual components may pose a danger of
death.
NOTICE! This combination of symbol and signal word warns of a potentially
hazardous situation, which if not avoided may cause material and environmental
damage.
This symbol highlights useful tips and recommendations as well as information
for efficient and fault-free operation.
1.3 Personnel qualifications
Personnel responsible for commissioning, operation, maintenance, inspection
and installation must be able to demonstrate that they hold a qualification
which proves their ability to undertake the work.
1.4 Dangers of failure to observe the safety notes
Failure to observe the safety notes may pose a risk to people, the environment
and the units. Failure to observe the safety notes may void any claims for
damages.
4
In particular, failure to observe the safety notes may pose the following
risks:
n The failure of important unit functions. n The failure of prescribed methods
of mainte-
nance and repair. n Danger to people on account of electrical and
mechanical effects.
1.5 Safety-conscious working
The safety notes contained in this manual, the existing national regulations
concerning accident prevention as well as any internal company working,
operating and safety regulations must be observed.
1.6 Safety instructions for the operator
The operational safety of the units and components is only assured providing
they are used as intended and in a fully assembled state.
This unit can be used by children above the age of 8, as well as by people
with impaired physical, sensory or mental capabilities or a lack of experience
and knowledge if they are supervised or have received instruction in the safe
operation of the unit, and if they understand the associated potential
hazards. Children must never play with the device. Cleaning and user
maintenance must not be carried out by unsupervised children.
n The units and components may only be set up, installed and maintained by
qualified personnel.
n If the mains power supply line of this unit is damaged, this must be
replaced by the manufacturer or their customer services department or a
similarly qualified person in order to avoid any hazard.
n Do not operate units or components with obvious defects or signs of damage.
n The units may not be installed or operated in explosive environments.
n The units must not be installed or operated in atmospheres containing oil,
sulphur, chlorine or salt.
n The units must be installed upright and in a stable position.
n The units and components must not be exposed to any mechanical load, extreme
levels of humidity or extreme temperatures.
n All housing parts and device openings, e.g. air inlets and outlets, must be
free from foreign objects. An unobstructed air inlet and air outlet must be
guaranteed at all times.
n The units must not be covered during operation.
n Never stick foreign objects into the units.
n The units must not be transported while they are running.
n The units must only be transported when the condensate container is empty
and the evaporator is dry.
n All electrical cables on the outside of the units must be protected against
damage (e.g. by animals etc.).
n Before each change of location, the condensate container must be emptied.
n The units must be inspected by a service technician to ensure that they are
safe to use and fully functional at least once yearly. Visual inspections and
cleaning may be performed by the operator when the units are disconnected from
the mains.
n The units shall be installed, operated and stored in a room with a floor
area larger than 17 m2.
n The refrigerant R454C fulfils the requirements of the European F-Gas
regulation.
n The units must not be burned, drilled or pierced.
n The units may only be operated in well ventilated areas.
NOTICE!
Extensions to the connection cable must only be conducted by authorised
specialist electricians, taking into consideration the unit power consumption,
cable length and local use.
NOTICE!
Work on the refrigerant system and on the electrical equipment must only be
conducted by a specially-authorised specialist!
1.7 Safety notes for installation, maintenance and inspection work
n Appropriate hazard prevention measures must be taken to prevent risks to
people when performing installation, repair, maintenance or cleaning work on
the units.
n The setup, connection and operation of the units and its components must be
undertaken in accordance with the usage and operating conditions stipulated in
this manual and comply with all applicable regional regulations.
n If the mains power supply line of this unit is damaged, this must be
replaced by the manufacturer or their customer services department or a
similarly qualified person in order to avoid any hazard.
5
REMKO LTE Eco series
n The units must be installed upright and in a stable position.
n The units must not be exposed to direct jets of water, e.g. pressure washers
etc.
n Safety devices may not be modified or bypassed.
n The units and components may only be set up, installed and maintained by
qualified personnel.
n Do not operate units or components with obvious defects or signs of damage.
n The units may not be installed or operated in explosive environments.
n The units must not be installed or operated in atmospheres containing oil,
sulphur, chlorine or salt.
n The units and components must not be exposed to any mechanical load, extreme
levels of humidity or extreme temperatures.
n All housing parts and device openings, e.g. air inlets and outlets, must be
free from foreign objects. An unobstructed air inlet and air outlet must be
guaranteed at all times.
n All electrical cables on the outside of the units must be protected against
damage (e.g. by animals etc.).
n The units must be inspected by a service technician to ensure that they are
safe to use and fully functional at least once yearly. Visual inspections and
cleaning may be performed by the operator when the units are disconnected from
the mains.
n The refrigerant R454C used in the system is flammable. If applicable,
observe the local safety conditions.
n Note that refrigerant may be odourless.
1.8 Unauthorised modification and changes
Modifications or changes to units and components are not permitted and may
cause malfunctions. Safety devices may not be modified or bypassed. Original
replacement parts and accessories authorised by the manufactured ensure
safety. The use of other parts may invalidate liability for resulting
consequences.
1.9 Intended use
The units are designed exclusively for drying and dehumidification purposes in
industrial or commercial situations on the basis of their structural design
and equipment. The units must only be operated by appropriately instructed
personnel.
Any different or additional use is a non-intended use. The
manufacturer/supplier assumes no liability for damages arising from non-
intended use. The user bears the sole risk in such cases. Intended use also
includes working in accordance with the operating and installation
instructions and complying with the maintenance requirements.
The threshold values specified in the technical data must not be exceeded.
1.10 Warranty
For warranty claims to be considered, it is essential that the ordering party
or its representative complete and return the “certificate of warranty” to
REMKO GmbH & Co. KG at the time when the units are purchased and commissioned.
The warranty conditions are detailed in the “General business and delivery
conditions”. Furthermore, only the parties to a contract can conclude special
agreements beyond these conditions. In this case, contact your contractual
partner in the first instance.
1.11 Transport and packaging
The devices are supplied in a sturdy shipping container. Please check the
equipment immediately upon delivery and note any damage or missing parts on
the delivery and inform the shipper and your contractual partner. For later
complaints can not be guaranteed.
WARNING!
Plastic films and bags etc. are dangerous toys for children! Why:
– Leave packaging material are not around.
– Packaging material may not be accessible to children!
6
1.12 Environmental protection and recycling
Disposal of packaging All products are packed for transport in environmentally
friendly materials. Make a valuable contribution to reducing waste and
sustaining raw materials. Only dispose of packaging at approved collection
points.
Disposal of equipment and components Only recyclable materials are used in the
manufacture of the devices and components. Help protect the environment by
ensuring that the devices or components (for example batteries) are not
disposed in household waste, but only in accordance with local regulations and
in an environmentally safe manner, e.g. using certified firms and recycling
specialists or at collection points.
7
REMKO LTE Eco series
2 Technical Data
Unit data
Unit type Operating range, temperature Operating range, humidity
Dehumidification capacity max. At 30 °C/80 % RH At 20 °C/70 % RH At 10 °C/60 %
RH Max. airflow volume Compressor / condenser – design Refrigerant 2)
Refrigerant quantity Power supply Max. rated current consumption Max. power
consumption At 20 °C / 70 % RH Customer-provided electrical protection Type of
connection Enclosure class Sound pressure level LpA 1 m 3) Sound power level
LwA 1 m Electronic start safeguard Operating hours counter Power meters Hot
gas defrosting Hygrostat Room temperature sensor Condensate pump, built-in
Hose length (condensate pump) Delivery height (condensate pump)
°C % RH l/day l/day (DER) 1) l/day (DER) 1) l/day (DER) 1) m3/h
g V/Hz
A kW kW A
dB(A) dB(A)
m m
LTE 120 Eco 3 to 32
40 to 100 106 92,1 52,3 14,7 960
Rotary piston R454C 1300
230/1~/50 5,3 1,15 0,95 16 Y IPX4 53
61 Series Series Series Series Series Series Option 5 (10 4))
5
8
Unit type Dimensions Depth Width Height Height incl. transportation bracket Weight EDP no. EDP no. Unit with condensate pump
LTE 120 Eco
mm
750
mm
705
mm
964
mm
967
kg
70.0
618910
618915
- (DER) = Dehumidification output figure in accordance with DIN EN 810 2)
Contains greenhouse gas according to Kyoto protocol 3) Noise level measurement
DIN 3744 – KL 2 4) Max. permissible hose length
We reserve the right to modify the dimensions and design as part of the ongoing technical development process.
9
REMKO LTE Eco series
3 Design and function
3.1 Air dehumidification general note
The correlations occurring when air is dehumidified are based on physical
laws. These are depicted here in graphical form in order to provide you with a
brief overview of the principles of air dehumidification
The use of REMKO air dehumidifiers
n Even if windows and doors are well insulated, water and moisture are still
capable of penetrating thick concrete walls.
n The water required for setting in the production of concrete, mortar and
plaster etc. may only be diffused after 1-2 months.
n Even moisture trapped in the masonry after high-water or a flood is released
very slowly.
n The same is also true of moisture contained in stored materials for example.
The moisture (water vapour) released from parts of a building or materials is
absorbed by the surrounding air. As a result, the moisture content increases,
which ultimately gives rise to corrosion, mould, rot, peeling of paint and
other unwanted damage. By way of example, the diagram below shows the
corrosion rate of metal in different levels of humidity.
A
1. By heating and air exchange: The air in the room is heated in order for
moisture to be removed and then this air is fed outside. All of the energy
that is involved is lost together with the moist air that is released.
2. By air dehumidification: The moist air that is present within an enclosed
space is continuously dehumidified in accordance with the condensation
principle.
With regard to energy consumption, air dehumidification has one distinct
advantage: Energy expenditure is limited exclusively to the air volumes
present. The mechanical heat that is released by the dehumidification process
is fed back into the room.
NOTICE! Under normal use, the air dehumidifier uses approximately 25% of the
energy that is required for the “heating and ventilating” principle.
B
Fig. 1: Corrosion rate in relation to relative humidity A: Corrosion rate B:
Relative humidity [%] It is evident that the corrosion rate below 50% relative
humidity (RH) is low, and below 40% is negligible. The corrosion rate
increases significantly above 60% RH. This threshold for damage as the result
of humidity also applies to other materials, such as powdery substances,
packaging, wood and electronic units. Buildings may be dried in a variety of
ways:
10
Relative air humidity
Our ambient air is a gaseous mixture which always contains a certain volume of
water in the form of water vapour. This volume of water is specified in g per
kg of dry air (absolute moisture content).
1m3 of air weighs approx. 1.2 kg at 20 °C
Depending on the temperature, each kg of air is only capable of absorbing a
certain volume of water vapour. Once this capacity has been reached, the air
is referred to as “saturated” and has a relative humidity (RH) of 100%.
Relative humidity is understood to mean the ratio between the current quantity
of water vapour in the air and the maximum possible quantity of water vapour
at the same temperature. The ability of the air to absorb water vapour
increases as the temperature rises. I.e. the maximum possible (absolute) water
content becomes greater as the temperature rises.
Temp.
°C -5 +10 +15 +20 +25 +30
Water vapour content in g/m3 at humidity of
40%
60%
1.3
1.9
3.8
5.6
5.1
7.7
6.9
10.4
9.2
13.8
12.9
18.2
°C
80%
-5
2.6
+10
7.5
+15
10.2
+20
13.8
+25
18.4
+30
24.3
100% 3.3 9.4 12.8 17.3 23.0 30.3
Drying materials Building materials and structures are capable of absorbing
considerable volumes of water, such as brick 90-190 l/m³, heavy concrete
140-190 l/m³ and limestone 180-270 l/m³. The drying of moist materials such as
masonry is effected as follows: The moisture moves from the inside of the
material to its surface.
Fig. 2: Drying damp masonry n Evaporation occurs on the surface = Transfer
of water vapour to the ambient air n The air containing water vapour is
constantly
circulated through the REMKO air dehumidifier. The air is dehumidified and,
slightly heated, leaves the unit in order to re-absorb water vapour n In this
way, the moisture contained in the material is reduced gradually The material
is dried! The accumulated condensate is collected in the unit and drained off
from there.
Fig. 3: Extracting and collecting condensate
11
REMKO LTE Eco series
Functional principle of the air dehumidifier
As it flows through or over the evaporator, the air stream is cooled to dew
point. The water vapour condenses, and is collected in a condensate trap from
where it is drained off.
1
2
A
B C
a
Fig. 4: Functional principle of the air dehumidifier
1: Evaporator 2: Condenser A: Air temperature
B: Air direction C: Humidity a: Progression
The condensation of water vapour
Because the capacity for the maximum possible volume of water vapour increases
as the air is heated, the volume of water vapour contained remains constant
and so relative humidity falls.
In contrast, because the capacity for the maximum possible volume of water
vapour decreases as the air is cooled, the volume of water vapour contained
remains constant and so relative humidity increases. If the temperature
continues to fall, the capacity for the maximum possible volume of water
vapour is reduced so much so that it is ultimately equal to the volume of
water vapour contained in the air.
This temperature is referred to as the dew point. If the air is cooled to
below dew point, the volume of water vapour in the air will become greater
than the maximum possible volume of water vapour. At this point, the water
vapour begins to precipitate. It then condenses to water. Humidity is then
removed from the air.
Examples of condensation include steamed-up window panes in winter, or the
moisture on the outside of a cold drinks bottle. As the relative humidity of
the air increases, so too does the dew point, making it easier for the
temperature to fall below it.
Condensation heat The energy transferred to the air from the condenser
consists of: 1. the amount of heat derived beforehand in the
evaporator 2. the electrical drive energy 3. the condensation heat released by
the lique-
fying of the water vapour.
12
Energy must be supplied when liquid is converted into a gas. This energy is
designated as evaporation heat. It does not cause any increase in temperature,
but is required to convert a liquid into a gas. Conversely, energy is released
when gas is liquefied, this is designated as condensation heat.
The amount of energy from evaporation heat and condensation heat is the same.
For water, this is: 2250 kJ/kg (4.18 kJ = 1kcal)
From this it is evident that the condensation of water vapour causes a large
quantity of energy to be released. With drying operations, a heat cycle is
created, whereby heat is consumed for evaporation and released for
condensation.
Generally speaking, the time required for the drying process is not only
dependent on the output of the unit, but is determined to a greater extent by
the speed at which the material or building section loses its moisture.
3.2 Unit description
The units have been designed for universal and straightforward air
dehumidification.
Their compact dimensions allow the unit to be transported and set up with
ease.
The units operate in accordance with the condensation principle and are
equipped with a hermetically sealed refrigerant system, low-noise and
lowmaintenance fan, operating hours and energy counter as well as a connection
cable with plug. Fully-automatic electronic controller, a condensate container
with integrated overflow protection in addition to connection ports for direct
condensate drainage help to ensure continuous fault-free operation.
The units conform to the fundamental health and safety requirements of the
appropriate EU stipulations. The units are dependable and offer ease of
operation.
Locations at which units are used
The units are used in all locations, where dry air is a must and where
economic consequential damage (such as that caused by mould) must be
prevented.
The units may be used for the drying and dehumidification of areas such as:
n New buildings, industrial buildings n Basements, storage rooms n Archives,
laboratories n Weekend homes, caravans n Bathrooms, wash rooms and changing
rooms
etc.
Operating sequence
Switching on the unit puts the electrical control into operation. The green
“COMP. ON” indicator light on the control panel illuminates. Due to an
automatic pressure equalisation, the units start with a time delay of around
10 seconds.
The fan extracts the moist room air through the dust filter, evaporator and
the condenser behind.
Heat is removed from the room air on the cold evaporator. The air is then
cooled to below dew point. The water vapour contained in the room air is then
deposited as condensate or rime on the evaporator fins.
If the temperature sensor here measures a pre-set minimum, it activates a
timer with a 30 minute delay. If the evaporator temperature stops increasing
during this period, the cooling cycle switches to hot gas defrosting after the
timer cycle.
The fan remains out of operation during the defrosting phase.
As soon as the rime (ice) has been defrosted and the temperature at the probe
has increased, the unit switches back to normal dehumidification mode.
If the room temperature is sufficiently high, the surface of the fins will not
be cold enough for rime formation to occur, rendering defrosting unnecessary.
Therefore, the air dehumidifiers work economically.
The cooled and dehumidified air is re-heated by the condenser (heat
exchanger), and blown back into the room through the outlet grille. The
processed, dry, heated air then re-mixes with the room air.
Continuous circulation of the room air through the unit gradually reduces the
relative humidity (% RH) in the room to the desired humidity level. Depending
on the room temperature and the humidity, only 30-40 % electrical energy is
required, in accordance with the output of the unit.
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REMKO LTE Eco series
Fig. 5: Air dehumidification operating principle
A: Dehumidified room air B: Moist room air 1: Fan
2: Condenser 3: Evaporator 4: Compressor
14
4 Assembly
4.1 Setting up the unit
For the best economic and safe use of the units, the following notes must be
followed in full:
n The units must be set up in an upright and level position, to ensure that
the condensate can drain freely
n To ensure optimum air circulation, the units should be set up in the centre
of the room, where possible
n It must be ensured that the air can be sucked in on the front of the unit
and blown out of the rear of the unit without obstruction
n Observe a minimum clearance of 50 cm from walls at all times
n Units must never be set up in the immediate vicinity of heaters or other
sources of heat
n The room being dried or dehumidified must be closed to the surrounding
atmosphere
n Air circulation is improved if the unit is set up approx. 1 m above the
ground
n Avoid having opened windows and doors etc., and avoid frequent entry to or
exit from the room as much as possible
n If the units are to be used in dusty environments, appropriate care and
maintenance measures should be taken in accordance with the relevant
conditions
n The output of the unit is entirely dependent on the conditions inside the
room, room temperature, relative humidity and observance of the set-up
instructions
n The units may not be used in environments containing a great deal of dust or
chlorine, or in places with atmospheres containing ammonia
NOTES: Keep windows and doors closed! Keep at least 0.5 m away from walls.
Maintain adequate clearance from heaters
or other sources of heat.
4.2 Unit transport
For easy transportation, the units are equipped with 2 large wheels and an
ergonomic transportation handle and protective frame. This can also be
dismantled easily if required. When transporting the units, observe the
following: 1. Before each change of location, switch off
the unit and remove the power plug from the mains socket. 2. Only transport
the units in an upright position where possible. 3. If the unit was
transported on its side, you must wait 1 hour with the unit in an upright
position before switching on.
NOTICE! Beware of dripping condensate. After switching off the units, the
evaporator may continue to defrost under the influence of the ambient
temperature.
WARNING! The mains cable must never be used as a pull cord or fixing device.
Fig. 6: Setting up the unit 15
REMKO LTE Eco series
5 Electrical wiring
5.1 General notes
n The units are operated with 220-240 V/50 Hz alternating current
n The electrical connection is made using a builtin mains cable with earthed
safety plug
WARNING!
The electrical connection to the units must be made at feed-points with
residual current devices in accordance with VDE 0100, Section 704. When
installing the units in extremely damp environments such as laundry rooms,
showers etc., the unit must secured with a residual current device provided by
the customer in accordance with the regulations.
5.2 Electrical wiring diagram
n Extensions to the connection cable may only be carried out by authorised
electricians, subject to the length of the cable, connected load of the unit
and taking into consideration how the unit is used at its location
n The LTE 120 Eco is intended for operation on a power supply network with a
system impedance Zmax at the transfer point (house connection) of max. 0.45
Ohm. The user must ensure that the unit is only operated on a power supply
network that meets these requirements. If necessary, the system impedance can
be obtained from the local power supply company
CAUTION!
All cable extensions must only be used in fully un-reeled or reeled off
condition.
B C
A
9
10
12 34 56 78
PE PE PE PE
3
5
6
78
11 PE L N
1
2
4
Fig. 7: Electrical wiring diagram
A: Control board B: Display circuit board C: Optional 1: Power supply 2: Compressor 3: Solenoid valve 4: Fan motor
5: Evaporator probe 6: Condenser probe 7: RESET button 8: Humidity probe 9: Fuse 3.15A 250V 10: Fuse 1A 11: Condensate pump
We reserve the right to modify the dimensions and design as part of the ongoing technical development process.
16
6 Commissioning
Before commissioning the unit or if local requirements dictate, the air-inlet
grille and air-outlet grille must be checked for contamination.
NOTICE!
A contaminated grille or filter must be cleaned or replaced immediately.
Important notes prior to commissioning n All extensions to the electrical
connection must
be of a sufficient cable size and must only be used fully rolled out or
unrolled. n Never use the power supply connection cable as a pull cord. n
After being switched on, the units operate fullyautomatically until switched
off by the float when the condensate container is full. n The condensate
container must be inserted properly. n In order to prevent damage to the
condenser, the units are equipped with a mechanism that prevents the
compressor from being immediately switched back on after it is switched off
The compressor only switches back on after a waiting time of approx. 1 minute!
NOTICE!
In room temperatures below 10 °C and relative humidity below 40%, economical
use of the unit can no longer be guaranteed.
Starting the unit
Start the unit as follows:
1. Plug the unit’s power plug into a properly installed and fused mains
socket (230V/50 Hz).
If you connect the dehumidifier to the mains, the unit should be switched off
(not operating). The segment display and LED indicators illuminate for 3
seconds (the humidity display shows “88” and the hour counter display shows
“88888.8”). After that the segment display for the humidity [3] shows the
environmental humidity and the display for the operating hours counter and the
energy counter [6] shows the operating hours counted for the compressor.
2. Set up a collection container or transfer the condensate hose to a
suitable drain.
3. Actuate the “ON / OFF” key.
The green “COMP. ON” indicator light illuminates. The unit switches on with a
time delay of around 10 seconds and then runs in continuous operating mode.
The unit will now operate fully-automatically until the desired relative
humidity (% RH) has been reached.
Automatic restart after power failure:
If the electrical power fails or if the power plug is pulled out during
operation, the unit switches off. When the unit is switched back on again or
if the power plug is put back in again the unit starts up again automatically
after a safety delay time of 70 seconds.
17
REMKO LTE Eco series
Control and display panel:
12 11 10
987
kWh
13
6
5
Fig. 8: Control panel
1 ON / OFF key:
After actuating the ON / OFF key whilst switched off, the unit starts as soon
as the humidity in the room (RH) is 4 % higher than the target value set for
the humidity in the room. The start sequence is: Fan motor ON solenoid valve
ON 10 seconds and then OFF compressor ON. If the room humidity is lower than
the target value set for the humidity in the room, then the “COMP. ON”
indicator flashes and the unit is in standby mode (not operating).
If the ON / OFF key is actuated during operation, the unit and the COMP ON”
display switch off. The ON / OFF delay time of the compressor is 1 minute.
2 SET HUMIDITY – Desired humidity setting:
After the unit is switched on, the target room humidity can be adjusted up or
down by pressing the arrow keys. As soon as the room humidity reaches the
target humidity set, the compressor and the fan motor stop. The target room
humidity set is displayed for 3 seconds during the adjustment and then reverts
to the current measured room humidity.
NOTE:
n If the unit is restarted it reverts to the previous setting
n The adjustment steps for the target humidity are 5 % ( RH) per key press.
The adjustment range for the target humidity should lie between 30 % and 70 %
( RH)
4
3
2
1
If the humidity lies below the target humidity set (i.e.: rRH < -3%), the
compressor and the fan motor stop. If the humidity is higher than the target
humidity set (i.e.: rRH > +4%), the unit restarts with a 3 minute delay.
Example: If the target humidity = 50 % RH, but the room humidity is 47 % RH,
then the compressor and fan motor stop and the “COMP. ON” indicator flashes
(standby display!). While the room humidity rises to 54 % RH, the unit
restarts with a 3 minute delay time in accordance with the start function
sequence.
The target room humidity value must be set within 3 seconds by pressing the up
arrow or down arrow keys. Then the current room humidity is displayed again.
3 Segment display for humidity, room temperature and malfunction code:
The standard display is the current measured room humidity. The humidity value
to be changed is displayed for 3 seconds by pressing one of the arrow keys [2]
to set the target room humidity. If the ROOM TEMP key is pressed, the current
measured room temperature is shown in the display for 5 seconds and then the
display automatically switches back to the current measured room humidity.
18
Function or situation Power plug is plugged in, the unit is switched off The
unit starts During the adjustment of the target room humidity
Upon actuation of the ROOM TEMP. Key
Is a malfunction is present
Segment display
Current measured room humidity is displayed
Current measured room humidity is displayed The target room humidity set is
displayed
The current measured room temperature is displayed for 5 secs Error code is
displayed
4 Room temperature key (RT) – To display the room temperature:
By actuating the “ROOM TEMP.” key, the red RT °C indicator illuminates and the
current room temperature is displayed for 5 seconds in the segment display
[3]. Then the current measured room humidity appears again automatically.
5 COUNTED key – to display the electrical power consumed or the compressor
run-time counted:
By actuating the “COUNTED” key, the “kWh” indicator illuminates and the
electrical power (kW) consumed by the unit is displayed in the segment display
[6].
Actuating the “COUNTED” key again switches off the “kWh” indicator and the
operating hours (h) of the compressor are displayed in the segment display
[6].
6 Segment display – display of the electrical power consumed or the compressor
run-time counted:
In standby mode, the current compressor run-time (h) is displayed in the
segment display [6] or, by actuating the “COUNTED” key, the electrical power
consumed (kWh).
The segment display [6] shows the operating hours of the compressor or the
electrical power consumed by the unit. The display shows values from “0.0” to
“99999.9”
7 COMP. ON INDICATOR:
If the compressor is running, this indicator is illuminated. If the compressor
is stops, the indicator flashes.
The unit has a 3 minute restart delay for the compressor as a safety function.
This means that the compressor requires 3 minutes to restart after it has
stopped due to having reached the target room humidity set. The “COMP. ON”
indicator flashes during the 3-minute protection period
8 DEFROST INDICATOR:
If the temperature of the evaporator (Te) is <= 1 °C and the compressor runs
for more than 5 minutes, the DEFROST indicator flashes and the 30-minute delay
timer for the defrost function starts.
Defrost function: Compressor still ON, fan motor OFF, solenoid valve ON,
DEFROST indicator illuminates. If the temperature of the evaporator (Te) is >=
3 °C then the defrost function stops and the DEFROST indicator extinguishes.
Function of the unit after defrost: Compressor ON, fan motor ON, solenoid
valve OFF, DEFROST indicator off
9 “CHECK” indicator:
If there is an abnormal situation (malfunction), the CHECK indicator [9]
illuminates or flashes. If the temperature probe (Te or Tc) or the humidity
probe is defective, the unit switches off and the indicator light [9]
illuminates. Then the error code (E1, E2, E4 or E5) is displayed in the
segment display [3].
If the temperature of the condenser (Tc) is over 50 °C while the unit is
running, the indicator light (CHECK) flashes.
There are two types of protective function for the Tc over-temperature (50
°C):
19
REMKO LTE Eco series
If Tc is >50 °C and the compressor runs within 5 minutes, the unit switches
off and the error code “E3” is shown in the segment display [3] and the CHECK
indicator [9] flashes. In this case, the fault cannot be reset with a key
press. The unit power plug must be removed from the socket so that the unit is
completely de-energised. Then, the dehumidifier can be restarted after a
restart delay of 70 seconds.
If Tc is > 50 °C and the compressor runs over 5 minutes, the compressor stops
but the fan motor continues to run for a further 30 minutes. The segment
display flashes with fault code E3 during this time. After 30 minutes the unit
is restarted for normal function with the previous setting.
NOTE:
n Within this 30 minute protective period, the “ON / OFF” key can be pressed
in order to switch the unit off. If the “ON / OFF” key is then pressed, the
unit restarts after a delay time of 1 minute.
10 RT °C INDICATOR: If the “ROOM TEMP” key is pressed, the RT indicator [10]
illuminates for 5 seconds.
11 “FULL TANK” DISPLAY: Is not used
12 kWh INDICATOR: By actuating the “COUNTED” key, the “kWh” indicator
illuminates and the electrical power in kW consumed by the unit is displayed
in the segment display [6].
13 kWh key: By pressing the “kWh” key, the control panel can be activated in a
de-energised state. This allows the consumed electrical power or the counted
compressor running time to be displayed without current.
20
Function table:
Functions
Comp. ON LED Check LED Defrost LED Full Tank LED Solenoid valve
Fan motor
Compressor Humidity segment display [3] Operating hours / power consumption
segment display [6]
Power plug inserted OFF
(no operation) OFF OFF OFF
OFF
OFF
OFF
Operating status: Unit operating or in standby
Standby (no operation) r RH <-3 %
The unit starts r RH >+4 %
Flashes OFF
ON OFF
OFF
OFF
OFF OFF OFF
Is not used
ON for 10 sec. then OFF
ON after 10 sec.
ON after 10+0.5 sec
Defrost function
30 min. timer expires if Te<=1 °C ON OFF
Flashes
After the 30 mins. defrost timer function has passed
ON
OFF
ON
If
Te >=3 °C,
then OFF
OFF ON
ON If Te >=3 °C, then OFF OFF If Te >=3 °C, then ON
ON
ON
Current room humidity is displayed
Operating hours or power consumption are displayed (changeover by actuating the “h/kWh” key)
21
REMKO LTE Eco series
7 Condensate removal
Depending on the air temperature and the relative humidity, condensed water
will drip into the condensate trap either continuously or only during the
defrosting phases and can drain through the hose connection. Unit operation
with hose connection Due to its high dehumidification performance, the unit is
designed to drain the condensate directly into a suitable collection container
via a sloping hose.
NOTICE! There is no overflow protection here.
NOTICE! Be sure to ensure that the edge of the collection container is not
higher than the angled probe.
The hose is connected directly to the Ø 14 mm angled probe, which protrudes
from the front of the device flap when delivered.
Fig. 10: Angled probe with extension
2. Ensure that there are no kinks in the hose!
In unattended permanent operating mode, the condensate should preferably be
drained into a lowerlevel drain. If using a collection container (pan, bucket,
etc.), the unit must be placed at a correct height.
Unit operation with condensate pump (optional)
The built-in condensate pump is located in the lower part of the device behind
the cover flap. This is already connected via a hose with the shortened angled
probe. Due to the shortened angled probe, the rubber passage is now free. The
drain hose can be routed either directly through the base plate or over the
free rubber passage to the outside.
Fig. 9: Hose connection
Connect the hose as follows:
1. Plug hose with inside diameter 14 mm onto the angled probe and secure this
with a hose clamp to prevent it slipping off.
Fig. 11: Drain hose passage through the cover flap
22
Fig. 12: Drain hose passage through the base plate
NOTICE! Unit operation with condensate pump is only possible with units that
were shipped with the pump installed.
NOTICE! If the condensate pump runs for an extended period of time, the
condensate trap and the hoses must be checked for contamination at regular
intervals.
Unit operation without pump is possible at any time.
23
REMKO LTE Eco series
8 Troubleshooting and customer service
The unit and components are manufactured using state-of-the-art production
methods and tested several times to verify that they function correctly.
However, if malfunctions do occur, please check the functions as detailed in
the list below. Please inform your dealer if the unit is still not working
correctly after all function checks have been performed!
Operational malfunctions
Malfunction
Remedial measures
Check the setting of the “ON / OFF” switch. The green “COMP. “ON” indicator
must illuminate
The unit does not start
Check the power supply and the power fuse provided by the customer 230V/1~/50
Hz
Check the power plug and the cable for damage
Check the setting of the desired humidity. The pre-set value must be lower
than the relative humidity in the room
The red CHECK (malfunction) indicator light illuminates
The cooling cycle is overloaded or overheated (see “CHECK” indicator in
chapter “Commissioning”)
Before starting the unit again, first identify the cause of the malfunction.
(see “CHECK” indicator in chapter “Commissioning”)
Check the room temperature. The operating range of the unit is between 3°C and
32°C
The unit runs but does not form any condensate
Check humidity of the air, min. 40 % RH required
Check the dust filter for contamination and clean or replace if necessary
Check the evaporator and condenser fins for contamination and clean if
necessary
Check the evaporator for ice or rime formation. If ice has formed, check the
functionality of the automatic defrost and the temperature sensor
If the unit fails to function correctly after the checks have been carried
out, contact an authorised specialist
WARNING!
Work on the refrigerant system and on the electrical equipment must only be
conducted by a speciallyauthorised specialist!
24
Display of error codes Error codes are displayed in the segment display [1].
1
Fig. 13: Segment display
Error code description:
Error code E1 E2 E3
Error description Evaporator temperature probe (Te) defective Condensate temperature probe (Tc) defective Compressor runs within 5 minutes and the condenser temperature (Tc) > 50 °C
E3 flashes E4 E5
Compressor runs over 5 minutes and the condenser temperature (Tc) > 50 °C Humidity / temperature probe (hygrostat) defective (room humidity measured > 100 % RH) Humidity / temperature probe (room temperature Rt)
9 Shutdown
Actuate the “ON / OFF” key, the “COMP. ON” indicator must extinguish.
If the units are inactive for longer periods, disconnect them from the mains
power supply.
Dry the condensate trap with a clean cloth. Remove the hose parts and flush
with air.
Beware of dripping condensate!
When storing the unit, cover with a plastic sheet / foil if necessary and
store in an upright position in a sheltered and dry location.
The units are not suitable for stacking.
Fig. 14: Do not stack the units!
25
REMKO LTE Eco series
10 Care and maintenance
10.1 Care and maintenance
General notes
Regular care and maintenance is fundamental to a long service life and fault-
free operation of the unit.
All moving parts have a low-maintenance permanent coat of lubricant. The
refrigerant system is designed as a hermetically sealed system and may only be
repaired by a specialist.
DANGER!
Before undertaking any work on the units, the mains plug must be removed from
the mains socket.
n Observe the regular care and maintenance intervals
NOTICE! Check the inlet and outlet grille for contamination on a regular
basis.
n In accordance with the operating conditions, the units must be checked as
and when required, but at least once per year, by a specialist to ensure that
they are in a condition that is safe to use
n Keep the units free of dust and other debris n Only clean the units with a
dry or moistened
cloth n Never subject to direct jets of water
(e.g. pressure washers etc.) n Never use abrasive or solvent-based cleaners n
Even with heavy contamination, use only suit-
able cleaners
Cleaning the dust filter
NOTICE! Check the inlet and outlet grille and the dust filter for
contamination on a regular basis.
Pull the protection grid forwards and then remove upwards. Then remove the
dust filter which has now been released. Light contamination of the dust
filter may be remedied with careful blowing or suction. Heavier contamination
may be remedied by rinsing the filter in a lukewarm (max. 40 °C) soap
solution. Finally, always rinse the filter carefully with clear water and
allow to dry! Before refitting the dust filter, ensure that its fully dry and
that no damage has been sustained.
NOTICE! Heavily contaminated dust filters must be replaced with new parts.
Only original replacement parts may be used.
The units may only be operated with the dust filter in place.
26
Cleaning the units The unit housing must be opened to allow the inside of the
unit to be cleaned and to provide access to electrical components.
NOTICE! Adjustment and maintenance work may only be carried out by authorised
qualified technicians.
1. Loosen the two fastening screws [C]. 2. Lift up the service flap and
unhook the top
lugs.
4. Clean the evaporator fins, for example with a lukewarm soap solution (or
similar).
NOTICE! When cleaning the exchanger, particular care must be taken because the
fine aluminium fins bend very easily.
5. Never subject to direct jets of water. 6. Rinse with clean water to remove
any
remaining soap. 7. Clean the internal surfaces of the unit and
the fan blade. 8. Clean the condensate trap and the connec-
tion nozzle. 9. Once cleaning has been completed, the unit
should be dried. Take particular care with electrical components! 10. Re-
install all dismantled components in reverse order. 11. Carry out a unit
function check and electrical safety check.
C
3. Clean the condenser fins by blowing, with suction or using a smooth brush.
WARNING!
An electrical safety check must be carried out in accordance with VDE 0701
after any work on the units.
27
REMKO LTE Eco series
10.2 Maintenance protocol
Unit type: ——————————–
Unit number: —————————————
Unit cleaned – outside Unit cleaned – inside Fan blade cleaned Fan housing cleaned Condenser cleaned Evaporator cleaned Fan function checked Air-inlet grid with filter cleaned Unit checked for damage Safety devices checked All fastening screws checked Electrical safety check Test run
00000000011111111112 12345678901234567890
Comments: ………………………………………………………………………………………………………………………………… ………………………………………………………………………………………………………………………………………………………..
01. Date: …………. …………………………. Signature
02. Date: …………. …………………………. Signature
03. Date: …………. …………………………. Signature
04. Date: …………. …………………………. Signature
05. Date: …………. …………………………. Signature
06. Date: ………… …………………………. Signature
07. Date: …………. …………………………. Signature
08. Date: …………. …………………………. Signature
09. Date: …………. …………………………. Signature
10. Date: …………. …………………………. Signature
11. Date: ………… …………………………. Signature
12. Date: …………. …………………………. Signature
13. Date: …………. …………………………. Signature
14. Date: …………. …………………………. Signature
15. Date: …………. …………………………. Signature
16. Date: ………… …………………………. Signature
17. Date: …………. …………………………. Signature
18. Date: …………. …………………………. Signature
19. Date: …………. …………………………. Signature
20. Date: …………. …………………………. Signature
Unit to be maintained only by authorised specialists in accordance with the statutory regulations.
28
30 29
49
17
41 51
28 45 46 47 48
16
27
26
14
52
25
44
42 43
24
13 12
10
41
50
11
23
8 9
11 Exploded view of unit and spare parts
11.1 Exploded view of the unit
We reserve the right to modify the dimensions and design as part of the
ongoing technical development process.
29
40
37
39
36 35
38
33
34
6 7
22
5
21
20
4
32
3
18 19 31
2
1
REMKO LTE Eco series
11.2 Spare parts list
No. Designation 1 Lock for sealing flap 2 Protective intake grille 3 Dust
filter 4 Unit housing 5 Control panel 6 Filter grill, interior 7 Evaporator
fin package cpl. 8 NTC evaporator probe 9 NTC condenser probe 10 Top
separating panel 11 Reinforcement plate above, left 12 Carrier frame above 13
Reinforcement plate above, right 14 Drying filter 16 Solenoid valve 17 Side
covering, right 18 Rubber ring for condensate passage 19 Sealing flap 20
Angled probe 21 Extension for angled probe 22 Condensate tray 23 Reinforcement
plate below, left 24 Carrier frame below 25 Reinforcement plate below, right
26 Fan blade 27 Engine mounting cpl. 28 Drive clutch 29 Fan motor 30
Transportation bracket 31 Stand 32 Rubber stopper, stand (2 pieces / set) 33
Side covering, left 34 Humidity / temp. probe cover 35 Humidity / temp. probe
LTE 120 Eco
On request by providing the serial number
30
No. Designation 36 Humidity / temp. probe holder 37 Base plate 38 Hub cover
cap 39 Wheel screw 40 Wheel 41 Wheel 42 Axle 43 Axle fastening 44 Compressor,
cpl. 45 Housing cover 46 Operating condenser 47 Control board 48 Switch
cabinet housing 49 Rear wall, housing parts 50 Strain relief 51 Mains cable
with plug 52 Vapor-liquid separator
Spare parts not illustrated Condensate pump Fuse holder for 5 x 20 mm fuse
Fuse 5 x 20 mm, 1A Condensate hose 45 cm Hose clip Condensate hose 5 m
LTE 120 Eco
On request by providing the serial number
On request by providing the serial number
To ensure the correct delivery of spare parts, please always provide the unit type with its corresponding serial number (see name plate).
31
REMKO LTE Eco series
12 Index
A
Air dehumidification, description . . . . . . . . . . . . 10 Automatic restart
after power failure . . . . . . . . . 17
C
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Care
and maintenance . . . . . . . . . . . . . . . . . . . 26 Clean dust filter . .
. . . . . . . . . . . . . . . . . . . . . . . 26 Clean units . . . . . . . . .
. . . . . . . . . . . . . . . . . . . 27 Cleaning the dust filter . . . . . .
. . . . . . . . . . . . . 26 Cleaning the units . . . . . . . . . . . . . . .
. . . . . . . . 27 Commissioning . . . . . . . . . . . . . . . . . . . . . . .
. . 17 Condensate removal . . . . . . . . . . . . . . . . . . . . . 22
Condensate trap, function . . . . . . . . . . . . . . . . . 12 Condensation
heat . . . . . . . . . . . . . . . . . . . . . . 12 Condensation of water
vapour . . . . . . . . . . . . . . 12 Control and display panel: . . . . . . .
. . . . . . . . . . 18 Customer service . . . . . . . . . . . . . . . . . . .
. . . . 24
D
Display of error codes . . . . . . . . . . . . . . . . . . . . 25 Disposal of
equipment . . . . . . . . . . . . . . . . . . . . . 7 Drying materials . . . .
. . . . . . . . . . . . . . . . . . . . 11
E
Electrical wiring . . . . . . . . . . . . . . . . . . . . . . . . . 16
Electrical wiring diagram . . . . . . . . . . . . . . . . . . 16 Environmental
protection . . . . . . . . . . . . . . . . . . . 7 Error codes, display and
description . . . . . . . . . 25 Exploded view drawing . . . . . . . . . . . .
. . . . . . . 29 Exploded view of the unit . . . . . . . . . . . . . . . . .
29
L
Locations for use . . . . . . . . . . . . . . . . . . . . . . . . 13
M
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
O
Operating sequence . . . . . . . . . . . . . . . . . . . . . 13 Operational
malfunctions . . . . . . . . . . . . . . . . . . 24 Ordering spare parts . . .
. . . . . . . . . . . . . . . . . . 30
R
Relative air humidity . . . . . . . . . . . . . . . . . . . . . 11
S
Safety Dangers of failure to observe the safety notes . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . 4 General . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . 4 Identification of notes . . . . . . . . . . . .
. . . . . . . 4 Instructions for the operator . . . . . . . . . . . . . . 5
Note for inspection work . . . . . . . . . . . . . . . . . 5 Note for
installation work . . . . . . . . . . . . . . . . 5 Note for maintenance work
. . . . . . . . . . . . . . 5 Personnel qualifications . . . . . . . . . . . .
. . . . . 4 Safety-conscious working . . . . . . . . . . . . . . . . 5
Unauthorised modification . . . . . . . . . . . . . . . 6 Unauthorised
replacement part manufacture . 6
Setting up the unit . . . . . . . . . . . . . . . . . . . . . . . 15 Shutdown
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Spare parts list
. . . . . . . . . . . . . . . . . . . . . . . . . 30 Starting the unit . . . .
. . . . . . . . . . . . . . . . . . . . . 17
T
Transporting the unit . . . . . . . . . . . . . . . . . . . . . 15
Troubleshooting and customer service . . . . . . . 24
U
Unit transport . . . . . . . . . . . . . . . . . . . . . . . . . . 15
W
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Water
vapour content . . . . . . . . . . . . . . . . . . . . 11 Water vapour,
condensation . . . . . . . . . . . . . . . 12
32
33
REMKO LTE Eco series
34
REMKO QUALITY WITH SYSTEMS
Air-Conditioning | Heating | New Energies
REMKO GmbH & Co. KG Klima- und Wärmetechnik
Im Seelenkamp 12 32791 Lage
Telephone +49 (0) 5232 606-0 Telefax +49 (0) 5232 606-260
E-mail URL
info@remko.de www.remko.de
Hotline within Germany +49 (0) 5232 6 06-0
Hotline International +49 (0) 5232 606-130
We reserve the right to make technical changes, and provide no guarantee as to the accuracy of this data!