Page 1
Operating and
installation instructions
REMKO MKT ECO series
Local room air conditioner in compact design
MKT 255 ECO, MKT 255 ECO S-Line, MKT 295 ECO, MKT 295 ECO S-Line
0233-2020-10 Edition 1, en_GB
Read the instructions prior to performing any task!
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R290
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
Page 3
Table of contents
1 Safety and usage instructions............................................................................................................. 4
1.1 General safety notes....................................................................................................................... 4
1.2 Additional safety notes when handling refrigerant R290................................................................. 4
1.3 Identification of notes...................................................................................................................... 5
1.4 Personnel qualifications.................................................................................................................. 5
1.5 Dangers of failure to observe the safety notes................................................................................ 5
1.6 Safety-conscious working............................................................................................................... 6
1.7 Safety instructions for the operator................................................................................................. 6
1.8 Safety notes for installation, maintenance and inspection.............................................................. 7
1.9 Unauthorised modification and changes......................................................................................... 9
1.10 Intended use............................................................................................................................... 10
1.11 Warranty...................................................................................................................................... 10
1.12 Transport and packaging............................................................................................................ 10
1.13 Environmental protection and recycling...................................................................................... 10
2 Technical data...................................................................................................................................... 1
Unit data........................................................................................................................................ 11
2.1
3 Design and function............................................................................................................................ 12
4 Operation............................................................................................................................................. 13
5 Assembly and installation.................................................................................................................. 15
6 Commissioning................................................................................................................................... 17
7 Shutdown............................................................................................................................................. 17
8 Electrical wiring................................................................................................................................... 18
9 Troubleshooting and customer service............................................................................................ 19
10 Care and maintenance........................................................................................................................ 21
11 Exploded view of the unit and spare parts list................................................................................. 22
11.1 Exploded view of the unit............................................................................................................ 22
11.2 Spare parts list............................................................................................................................ 23
12 Index..................................................................................................................................................... 25
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3
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REMKO MKT ECO series
1 Safety and
usage instructions
1.1 General safety notes
n Carefully read the manual before commis-
sioning the units or their components for the
first time. It provides useful tips and notes such
as hazard warnings to prevent injury and material damage. Failure to follow the directions in
this manual can endanger persons, the environment and the equipment itself or its components and will void any claims for liability
n Store this manual and the information required
for the operation of this system (e.g. refrigerant
datasheet) in the vicinity of the units.
n This unit may only be installed and operated as
described in this manual.
n Independent conversion and/or modification of
any kind is strictly prohibited.
n National regulations in connection with installa-
tion must be observed.
n Children must not be left unsupervised when
close to the unit.
n For safety reasons, people with mental, phys-
ical or other health limitations must not operate
this unit unattended.
n The unit is not permitted to be operated with
damaged cables. The unit must be repaired by
a specialist immediately
n The unit may only be operated via a power
supply with grounding.
n The use of extension cables is not recom-
mended.
n The air filter must be cleaned at intervals of no
more than 2 weeks.
n The unit is not permitted to be operated in the
vicinity of heat sources.
n The unit must be transported upright. Residue
from the condensate must be drained off
before transport. The unit must be stood
upright for 1 hour prior to commissioning.
n Combustible substances and pressure con-
tainers must be kept at least 50 cm from the
unit.
n The unit must not be stored and operated in
rooms with oil, gas or sulphur.
n The unit must always be switched off with the
on/off switch.
n Do not place anything on the device in partic-
ular heavy or hot objects.
n Repairs may only be carried out by authorised
and certified specialist personnel.
n The unit must not be covered with plastic
sheets.
n This unit must be disposed of professionally in
accordance with environmental protection.
.
.
n The safety notes in regards to the room sizes
and the flammability of the refrigerant must not
be removed from the machine.
n The units may only be operated in well venti-
lated areas.
n The unit can be used by children 8 years and
up and by persons without physical, mental or
other health limitations if this knowledge has
been obtained via the necessary safety notes.
n Children must never play with the unit.
n Cleaning the units must not be carried out by
children without parental/guardian supervision.
Additional safety notes when
1.2
handling refrigerant R290
Warning of inflammable substances!
n The refrigerant R290 fulfils the requirements of
the European F-Gas regulation.
n The units contain 0.30 kg of the refrigerant
R290.
n The maximum permitted amount of refrigerant
R290 is 0.3 kg.
n The units must not be burned, drilled or
pierced.
n Only use cleaning agents which have been
approved by the manufacturer for cleaning.
n The unit must never be operated in rooms with
naked flames (e.g. gas heaters, open fireplaces, etc.).
n Refrigerant circuit components must not be
deformed.
n The contained refrigerant R290 is colourless
and odourless.
n The unit must not be stored or operated in
rooms which have a room area of 14.4 m2 or
less.
n The accumulation of refrigerant due to leak-
ages can lead to a fire and explosions in rooms
which are too small due to the development of
heat or ignition sources.
The units must be stored carefully
damage must be avoided.
. Mechanical
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n Intervention in the refrigeration circuit may only
be done by certified specialist personnel taking
into account the safety notes of the manufacturer.
n Maintenance and repairs may only be carried
out by authorised personnel which have the
corresponding knowledge in regards to flammable refrigerant.
WARNING!
Do not use anything other than the agent recommended by the manufacturer to speed up a
possible defrosting process or to clean the
units. The unit may only be operated and stored
in rooms where there are no devices with
potential ignition sources. Do not go below the
minimum room area of 14.4 m2. Note that
leaking refrigerant is colourless and odourless.
The unit must not be burned or pierced!
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.
NOTICE!
1.3 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.
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
.
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.
1.4 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.
1.5 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.
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 ef
fects.
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REMKO MKT ECO series
1.6 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.
Safety instructions for the
1.7
operator
The operational safety of the units and components is only assured providing they are used as
intended and in a fully assembled state.
n This unit may only be installed and operated as
described in this manual.
n Independent conversion and/or modification of
any kind is strictly prohibited.
n Children must not be left unsupervised when
close to the unit.
n For safety reasons, people with mental, phys-
ical or other health limitations must not operate
this unit unattended.
n The unit is not permitted to be operated with
damaged cables. The unit must be repaired by
a specialist immediately
n The unit may only be operated via a power
supply with grounding.
n The use of extension cables is not recom-
mended.
n The air filter must be cleaned at intervals of no
more than 2 weeks.
n The unit is not permitted to be operated in the
vicinity of heat sources.
n The unit must be transported upright. Residue
from the condensate must be drained of
before transport. The unit must be stood
upright for 1 hour prior to commissioning.
n Operating the units in rooms with potential igni-
tion sources (naked flames, gas or electrical
heaters, fireplaces) is prohibited.
n The unit may only be installed, operated and
stored in rooms larger than 14.4 m2.
n Protective covers (grilles) over moving parts
must not be removed from units that are in
operation.
n Do not operate units or components with
obvious defects or signs of damage.
n Contact with equipment parts or components
can lead to burns or injury.
n The units and components must not be
exposed to any mechanical load, extreme
levels of humidity or extreme temperatures.
n Never drill through the housing cover or have
the unit come into contact with fire.
n Rooms in which refrigerant may escape must
be adequately aerated and ventilated. Otherwise there is danger of suffocation.
.
f
n All housing parts and unit openings, e.g. air
inlets and outlets, must be free from foreign
objects, fluids or gases.
n The local room air conditioners are designed
for flexible use in living and work spaces. Y
round operation is not recommended. Use in
server rooms is prohibited.
n Do not leave the units running for an extended
period unsupervised.
Improper use can cause serious damage to the
unit.
Read this manual carefully before commissioning!
The unit and in particular the control panel must
not come into contact with water.
Never cover the air inlets and outlets.
Do not allow children to play with the unit
ear-
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Do not stand or sit on the unit.
Unplug the power plug before cleaning the unit.
Do not disassemble housing parts (consult a specialist company).
Unplug the power plug when not in use for a long
period.
Ensure the voltage is correct (220-240 V AC, 50
Hz).
Do not operate the unit with defective cables or
sockets.
1.8 Safety notes for installation, maintenance and inspection
n Check the work area
Before starting work on units with combustible
refrigerants, ensure that any potential ignition
sources are removed and the risk of igniting
the refrigerants is eliminated. The aforementioned safety notes for repairing the units must
be observed at all times. W
carried out by authorised specialist personnel
with knowledge of handling combustible refrigerants!
n Prepare the work area
Any persons present must be informed about
the repair process accordingly and persons not
involved must vacate the work area. W
rooms with limited space is prohibited. Ensure
that sufficient space is available at the workplace. Ensure that the ambient conditions are
suitable for working with combustible refrigerants.
n Identify refrigerant leaks, check the atmos-
phere
Refrigerant may unexpectedly escape when
working on the refrigerant circuit. Ensure that
the atmosphere in the workplace is not combustible at all times by using suitable refrigerant detectors. Be sure to ensure that the
refrigerant detector used is suitable, approved
and calibrated for use with refrigerant R290.
n Provide fire extinguishers
Provide appropriate fire extinguishers before
starting work. For this purpose, dry powder or
CO2 fire extinguishers are suitable.
n Remove any potential ignition sources
Leaking refrigerant in combination with corresponding ignition sources can lead to an explosion. All ignition sources must therefore be
kept away from the working area at all times!
This also includes the smoking of cigarettes.
Inform all persons present that this includes the
affixing of safety notes and the closing off of
the working area.
ork may only be
orking in
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REMKO MKT ECO series
n Sufficient ventilation
Before starting work, ensure that the working
area is outdoors or has sufficient ventilation. A
continuous ventilation stream is required while
working. The safety of the persons working
must be guaranteed by the exhaust air equipment: potentially leaking refrigerant must be
lead away safely and drained into the atmosphere in an optimum manner
n Checking the refrigerant circuit
If electronic components need to be replaced,
ensure that the spare parts have the same
function and identical technical specifications.
The maintenance and replacement regulations
of the manufacturer must always be observed
and complied with. Please contact the support
of the manufacturer with any problems or
queries. The following safety checks must be
carried out when using combustible refrigerants:
- The fill level adjusts to the size of the rooms
in which the unit is located.
- The exhaust air equipment and its outlets
function properly and are not blocked or
obstructed.
n Checking the electronic components
A component and safety check must be carried
out before repairing and maintaining electronic
components. If safety cannot be ensured due
to a defect on a component, installation must
not take place until safety can be guaranteed
again. If the defect on the spare part cannot be
remedied and downtime of the unit is no longer
acceptable, an adequate temporary solution
must be arranged. The owner/operator of the
unit must be informed about this. The detailed
safety check must include the following
aspects:
- Capacitors are discharged. Discharging must
be done in a safe process to prevent flying
sparks.
- There must be no electronic components
active or uninsulated wires while filling,
repairing or cleaning.
- There must be no earthing of the system.
n Repairs to closed components
Before repairing closed components/housing
parts, the unit must be free from voltage. If carrying out the repairs free from voltage cannot
be avoided, the critical points of potential refrigerant leakages must be checked using a leak
detector.
The following notes must be observed when
working on electronic components if the
housing is changed in such a way that its
safety is influenced. This also relates to cases
where the lines are damaged, there is excessive or incorrect pin assignment, connections
are not assigned in the original way or similar
deviations to the expected condition are determined.
.
n Repairing of intrinsically safe components
Do not introduce permanent inductive or
capacitive loads into the existing circuits
without ensuring that the maximum permitted
voltages and amperages of the assemblies and
lines are not exceeded. Intrinsically safe components are individual components that can be
operated in the presence of flammable substances. The test equipment must be adjusted
according to the situation-dependent conditions. Only use components which are of
approved by the manufacturer as spare parts.
Unapproved components can cause a fire in
the event of a leakage in the refrigerant circuit.
n Wiring
Lines must be checked for the following
damage:
- Damage to the insulation
- Corrosion at the contact points
- Excessive pressure on the lines
- Damage due to vibrations
- Damage due to sharp edges
- Damage due to other influences not mentioned here
Also consider the ageing of the material and
continuous vibration loads due to compressors
or fans when checking.
n Identify combustible refrigerant
Do not use any potential ignition source when
searching for refrigerant leaks under any circumstance. The use of a leak detection lamp
or other similar devices with a naked flame is
not permitted.
1. Ensure that the components are installed
correctly.
2. Ensure that sealing materials are not
changed in such a way that combustible gases
or objects could penetrate into the interior of
the components.
3. Spare parts must correspond to the manufacturer
The use of silicones can influence the ef
ness of leak detection devices! Intrinsically safe
components must not be insulated before
starting work.
’s specifications.
NOTICE!
ficially
fective-
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n Leak detection methods
The following leak detection methods are permitted for systems with combustible refrigerants. Electronic equipment must be used for
detecting leaks. These must be selected with
the sensitivity matched to the situation and
recalibrated if necessary (calibration must take
place in a refrigerant-free environment). The
leak detection device must be adjusted to the
lowest flammability limit (LFL) of the refrigerant. Liquid leakage instruments are permitted
for most refrigerants. Chlorinated substances
are the exception here as the chlorine in combination with the refrigerants can cause corrosion on the copper cables. If a leak is detected,
all potential open ignition sources must be
removed immediately. If a leak has been
detected in the system which requires
reworking of the piping in the form of soldering,
the system must be completely free of refrigerant or
nected from the system using stopcocks. The
affected system parts must be flushed with
oxygen-free nitrogen run before and during the
repair work.
n Emptying and evacuating the system
If the refrigerant circuit must be opened for
repairs or other reasons, this must be carried
out in a safe and professional way. In any
event, proceed with extreme caution since ignition may occur at any time! Stick to the following procedure:
1. Drain the refrigerant
2. Flush the system with insert gas
3. Evacuate
4. Repeat steps 2 to 3 if required
5. Opening the system by cutting or soldering
The system must be flushed with oxygen-free
nitrogen in order to guarantee safety
flushing process must be repeated multiple
times if necessary. Do not use compressed air
or oxygen for the flushing process! After evacuating, flushing takes place by filling with dried
nitrogen until the operating pressure is reached
and then the system must be evacuated again.
This flushing process must often be repeated
until there is no more refrigerant in the system.
After the last flushing, the system must be
brought to the ambient pressure in order to
start work. The flushing process is indispensable when soldering work is required on the
piping. Ensure that the vacuum pump outlet is
not near an ignition source and continuous
ventilation is guaranteed.
, if possible, the affected part discon-
. The
n Filling process
The following requirements for the general
specifications must also be fulfilled during the
filling process:
- Ensure that no contamination occurs from
other refrigerants (residues in the filling equipment).
- Keep the lines as short as possible to minimise the likelihood of residues forming.
- Filling bottles and cylinders must be stood
upright.
- Ensure that the system is earthed before
filling.
- Label the system with the refrigerant type
designation after filling
- Never exceed the maximum fill level.
The system must be checked for leaks (pres-
sure test!) before filling. The system must be
checked for leaks once more after filling and
before commissioning. Check for leaks again
when leaving the work space.
n Labelling when shutting down
If a unit must be taken out of operation and the
refrigerant must be disposed of, the unit must
be labelled with the date and a signature.
Ensure that the note remains attached to the
combustible refrigerant.
n Transportation of units which contain com-
bustible refrigerants
National provisions must be observed.
n Storing of units which contain combustible
refrigerant
National provisions must be observed.
n T
ransportation without the original pack-
aging
If the units are transported without the original
packaging, they must be packed in such a way
that mechanical damage is prevented. The
units must be transported upright.
1.9 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
use of other parts may invalidate liability for
resulting consequences.
. The
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REMKO MKT ECO series
1.10 Intended use
Depending on the model, the equipment and the
additional fittings with which it is equipped is only
intended to be used as an air-conditioner for the
purpose of cooling or heating the air in an
enclosed room..
Different or additional use shall not be classed as
intended use. The manufacturer/supplier assumes
no liability for damages arising from an unintended
use of the equipment. The user bears the sole risk
in such cases.
Using the equipment as intended also includes
working in accordance with the operating manual
and installation instructions and complying with the
maintenance requirements.
Under no circumstances should the threshold
values specified in the technical data be exceeded.
1 Warranty
1.1
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.
1.13 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.
1.12 T
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.
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!
ransport and packaging
WARNING!
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2 Technical data
2.1 Unit data
Series
MKT 255
ECO
MKT 255
ECO
MKT 295
ECO
MKT 295
ECO
Operating mode Local compact air conditioning unit for cooling
Nominal cooling output
1)
kW 2.6 2.9
Energy efficiency ratio - cooling A
Energy efficiency rating EER
1)
2.6
Energy consumption, hourly kWh/60 min 1.0
Application area (room volume), approx.
m
3
80 90
Adjustment range indoor unit °C +16 to +32
Operating range - indoor unit °C/%r.H. +16 to +35/35 to 85
Refrigerant R290
Refrigerant, basic quantity kg 0.30
CO2 equivalent
t 0.00
Max. operating pressure / cooling cycle kPa 1160/4120
Air flow volume per stage
Sound pressure level per stage
m3/h
2)
dB(A) 49/50/51
230/290/325 260/330/340
Sound power level max. dB(A) 65
Power supply V/Ph/Hz 230/1~/50
Enclosure class IP X0
Electrical rated power consumption
Electrical rated power consumption
Standby operation
Electr. rated current consumption
1)
1)
1)
kW 1.0 1.1
W 0.39 0.38
A 4.49 4.54
Elec. starting current max., LRA A 17
Exhaust air hose, length / diameter mm 1500/150
Dimensions - height/width/depth mm 745/455/395
Weight kg 30.5 32.0
Standard colour white silver white silver
Serial number 1922... 1923... 1924... 1925...
EDP no. 1616255 1616256 1616295 1616296
1)
Room air temperature TK 35 °C, FK 24 °C
2)
Distance 1 m free field
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2
1
4
A
3
D
B
C
1
2
4
3
REMKO MKT ECO series
3 Design and function
Unit description
The local air conditioning unit is particularly well
suited to flexible use.
The local room air conditioner comprises a floorstanding unit for the indoor area and an exhaust air
hose to conduct the heat away
extracts the heat from the room to be cooled by
means of an evaporator (heat exchanger) and
transfers it to the internal cooling cycle. This
releases the heat back to the outside via another
heat exchanger (condenser) by means of the flexible exhaust air hose.
The condensate arising during cooling mode is
continually drained of
of a condensate pump located in the unit - the condenser evaporates the condensate and discharges
it to the outside via the exhaust air hose.
The unit filters and dehumidifies the air thereby
creating a comfortable room climate. It works fully
automatically and offers numerous additional
options thanks to its microprocessor controller. The
operation of the unit can be conveniently operated
by means of the infra-red remote control included.
f via the condenser by means
. The indoor unit
Fig. 1: Front view
A: Air outlet, recirculation
1: Recessed grip
2: Control panel
3: Ventilation louvres
4: Transport castors
Fig. 2: Rear view
B: Air inlet, recirculation
C: Air inlet, exhaust air
D: Air outlet, exhaust air
1: Air filter, recirculation
2: Condensate drainage with stopper
3: Condensate emergency drainage with stopper
4: Exhaust air hose connection
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4 Operation
1 2 3 4
5
6
5
31
2
4
1
2
3
4
The system can be operated by means of the control panel on the unit or via the standard infrared remote
controller
must be correctly inserted before the infrared remote control is used.
. The functional operation of the keys is identical, however
, the designation may vary. The batteries
Fig. 3: Remote control and control panel
Legend
Key (On/Off)
This key switches the unit on or off.
Operating mode "MODE" key
Actuation of this key allows the operator to select
between the cooling mode (COOL), dehumidification mode (DRY) or circulated air mode (F
LEDs indicate the selected operating mode.
"FAN" speed key
With this key it is possible to set the fan speed and
therefore the air flow. It is possible to select
between the speed stages low (LO), medium
(MED) and high (HI). The LEDs show the selected
fan speed.
AN). The
"TIMER" key
This key can be used to activate a switch-on or
switch-off delay
when the unit is switched off, whilst the switch-off
delay is activated when the unit is switched on.
Using the arrow keys, it is subsequently possible to
set the desired delay in 1-hour steps. If no further
change is made for a few seconds, the unit saves
the setting and the set time is shown on the display. The LED lights up when the timer is activated.
. The switch-on delay is activated
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6
REMKO MKT ECO series
"▲/▼- THERMO/TIMER CONTROL” keys
The target temperature can be set by pressing the
"▲/▼" keys. This can be adjusted in a range of 16
to 32 °C in 1 °C steps.
"ALARM" display
The condensate arising will be collected in an
internal reservoir, fed to the condenser and evaporated there. The evaporated condensate will then
be fed to the outside via the exhaust air hose. If
the condensate cannot be fed away then a fault
shut-down is initiated along with an LED 6 signalling this. In order to put the unit back into operation
again after this fault shut-down, proceed as follows:
1. Switch the unit off with the "I/0" key and pull
out the power plug.
2. Place a suitable container underneath the
condensate drain of the internal reservoir.
The condensate drain is located on the lower
centre on the rear of the unit.
3. Pull out the stopper from the condensate
drain and collect the condensate that drains
out.
4. Then insert the stopper once again.
NOTICE!
You will achieve a pleasant room temperature if
you set the desired target temperature max. 4
to 7 °C below the outside temperature.
Infrared remote control
General notes
n With the unit switched on any change to the
settings will be automatically transferred to the
room air conditioner. The proper receipt of data
will be acknowledged with an audible "beep".
n T
o operate the infrared remote control it should
be pointed towards the receiver. The receipt of
data is only possible if there are no objects
between the transmitter and the receiver.
n If the system is shut down for an extended
period it is advisable to remove the batteries
from the remote control.
NOTICE!
Never use new and used batteries at the same
time, remove discharged batteries immediately
and replace these with new batteries of the prescribed quality as there is a danger of discharged batteries leaking.
Inserting the batteries into the remote control
Before initial commissioning, insert the supplied
batteries (2 each, type AAA) into the remote control.
1. Slide the battery compartment cover on the rear
of the remote control to open it.
2. Insert the batteries with the correct polarity.
Observe marking in the battery compartment.
3. Close the battery compartment again.
Help save on energy consumption in stand-by
mode! If the device, system or component is not
in use, we recommend disconnecting the power
. Components with a safety function is
supply
excluded from our recommendation!
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1
2
1
5 Assembly and
installation
Assembly and unit installation instructions
The unit is positioned at the desired location with
the discharge side pointing into the room. When
positioning, observe the following instructions:
n After unpacking the unit let it sit on its transport
rollers for at least 5 minutes before you switch
it on.
n Set the unit down in a stable position on a level
and firm floor. If the floor is uneven then this
can lead to vibrations and disturbing noises.
n Check whether the stopper in the condensate
drain is present and correctly installed. There is
a risk of uncontrolled condensate leakage after
commissioning.
Fig. 6: Condensate drain
1: Condensate drainage with stopper
2: Condensate emergency drainage with stopper
n Never operate the unit without the air inlet filter.
Otherwise, the fins of the heat exchanger can
become dirty and the unit loses performance.
Fig. 4: Unit installation
NOTICE!
There must be a minimum clearance of 20 cm
between the rear of the unit and the wall.
n All extensions to the power supply must be of a
sufficient cable size and must only be used
fully rolled out.
Fig. 7: Recirculated air filter
1: Recirculated air filter
n Ensure that persons and sensitive objects,
such as plants, are not placed directly in the air
flow emerging from the unit.
In addition, with direct solar radiation close the
curtains and blinds and keep the windows and
doors closed during operation.
Fig. 5: Power supply
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Page 16
REMKO MKT ECO series
Conduct the warm exhaust air away
NOTICE!
The exhaust air hose should always be laid
rising in the direction of air flow and must not be
extended!
In cooling mode the unit creates warm moist
exhaust air, which must be conducted away from
the room to be cooled. For this reason it is necessary to plug the exhaust air hose into the outlet
opening on the rear of the unit.
n Ensure that the catches for the exhaust air
hose latch securely into the two openings of
the connection aperture. Do not lay the flexible
exhaust air hose with tight bends and do not
kink it in order to be sure of effective operation
and to avoid this causing damage to air ducting
components!
Via a wall pass-through
The hose supplied is firmly attached to a wall passthrough. A suitable wall pass-through is available
as an accessory (Fig. 1
Fig. 9: Exhaust air with open window
1).
Fig. 8: Latch the hose into place
n The exhaust air of the unit contains a certain
amount of moisture. For this reason it is advisable to feed the exhaust air to the outdoor area
or to outdoors.
Exhaust air routing variants
You can route the exhaust air out of the building as
follows:
Via a flat nozzle
The flat nozzle supplied can be used in various different ways. It is possible to feed the flat nozzle
through an open window and fasten it by means of
Velcro and a window suction cup (Fig. 9). Likewise
the flat nozzle can be hung in a tilted window
(Fig. 10).
Fig. 10: Exhaust air with tilted window
Fig. 11: Wall pass-though
NOTICE!
In some circumstances routing the exhaust air
via a firmly attached exhaust air hose, e.g.
through closed doors or windows, can lead to
negative pressure in the room in which the unit
is being used. If this should reduce the performance of the unit then arrange for the pressure to
be equalised (provide ventilation if necessary
on-site).
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Page 17
6 Commissioning
Before every commissioning the air inlet and outlet
openings should be checked for foreign bodies and
the air inlet filter must be checked for dirt. Blocked
or soiled grills and filters must be cleaned immediately, see "Care and maintenance" chapter.
Cooling mode
1. Switch the unit on with the "I/O" key
2. Select cooling mode with the "MODE" key
3. Set the desired target temperature with the
"THERMO/TIMER CONTROL" keys. The
selected target temperature will be shown in
the display
large or too small then this can be adjusted
with the "F
Recirculation mode
1. Switch the unit on with the "I/O" key
2. Select recirculation mode with the "MODE"
key
.
. If the fan speed selected is too
AN" key.
.
.
.
7
Temporary shutdown
If it is planned to shut down the unit for longer
periods e.g. during the winter, proceed as follows:
1. Let the unit run in recirculating operation for
2. Switch the unit off with the "I/O" key
3. Place a suitable container underneath the
4. Pull out the stopper from the condensate
5. Then insert the stopper once again. A
6. Store the unit in an upright position in a cool,
Shutdown
NOTICE!
Never switch off the equipment by pulling out
the mains plug.
ca. 2 hours in order to dry the surfaces of the
evaporator fins. This will transport the
remaining moisture out of the unit and this
will avoid unpleasant odours when the unit is
re-commissioned.
, pull out
the power plug and wind up the power
supply. Ensure that the cable is not kinked or
too severely bent. The line can be fastened
to the rear of the unit.
condensate drain of the internal reservoir.
The condensate drain is located on the lower
rear side of the unit.
drain and collect the condensate that drains
out.
missing stopper or an incorrectly inserted
stopper will result in condensate leaking out
after re-commissioning.
dry and dust-free location protected from
direct sunlight. Cover the unit with a synthetic
cover to protect it against dust if desired.
Permanent shutdown
The entire system should only be dismantled by a
specialist firm familiar with all environmental
aspects involved. REMKO GmbH & Co. KG or your
contractual partner will be pleased to provide a list
of refrigerant specialists in your area.
17
Page 18
CN 5
COM
NO
CN 1
CN 2
CN 4
CN 6
M
CN 3
CN1
CN
2
L
N
PE
M
M
M
A
2
1
4
3
5
6
3
7
8
REMKO MKT ECO series
8 Electrical wiring
Electrical wiring diagram
Fig. 12: Electrical wiring diagram
A: Power supply
1: Infrared receiver
2: Liquid level switch
3: Temperature probe
4: Condensate pump
5: Fan motor, evaporator
6: Compressor
7: Compressor overheating protection
8: Fan motor, condenser
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Page 19
9 Troubleshooting and customer service
The unit has been manufactured using state-of-the-art production methods and has been tested several
times to ensure that it works properly
list below. Please inform your dealer if the unit is still not working correctly after all the function checks have
been performed.
Operational malfunctions
Fault description Cause Remedy
. If malfunctions should occur
, please check the unit as detailed in the
The unit does not start or switches
itself off.
The unit does not work or works at
reduced cooling capacity
.
Master switch of
Power failure Check voltage and if neces-
Defective mains fuse Arrange to have exchanged
Power supply defective Repair by specialist firm.
Operational temperature range too
low or exceeded.
Internal reservoir full. Empty reservoir.
The ambient temperature of the
unit lies outside the operating
range (16 to 35 °C).
Exhaust air hose kinked, extended,
routed downwards or blocked.
Filter contamination, inlet and/or
outlet blower openings blocked by
foreign bodies.
Minimum clearances too small. Observe minimum clearances.
Windows and doors open/heat load
was increased.
f. Switch on the master switch.
sary wait until turned on again
Observe operational temperature range 16 to 35 °C.
Do not operate the unit outside
the operating range.
Ensure that there is a clear
path for the exhaust air.
Clean filter
Close doors and windows/
reduce heat load.
.
The unit does not respond to the
infra-red remote control.
Negative pressure in the installation room whilst the unit is operating with wall pass-through.
"Cooling" operating mode is not
selected.
Unit will be switched by means of
the timer function.
Temperature setting too high. Reduce temperature.
Overvoltage due to local lightning
strike.
Batteries in the remote control are
empty or the distance to the
receiver is too great.
After battery exchange, incorrect
polarity of batteries.
Balance out pressure in the
installation room.
Set "Cooling" operating mode.
Press "I/0" key again.
Switch unit off and separate
from the power supply for 5
mins., then start anew
Insert new batteries/reduce
distance.
Insert the batteries with the
correct polarity
marking.
. Observe
.
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Page 20
REMKO MKT ECO series
Fault description Cause Remedy
Condensate discharge on unit. Unit standing at an angle. Stand vertically.
The stopper for the condensate drain is not
correctly inserted or is damaged.
Error indication by code
Error code Error description Error elimination
E1 Ambient temperature probe defec-
tive
E2 Probe, evaporator defective Replace probe
E5 Control board defective Replace the control board
Insert stopper correctly or
replace if necessary
Replace probe
.
20
Page 21
1
10 Care and maintenance
Regular care and observation of some basic points
will ensure trouble-free operation and a long
service life.
DANGER!
Prior to performing any work, ensure the equipment is disconnected from the voltage supply
and secured to prevent accidental switch-on!
Filter cleaning
The unit is equipped with an air filter. This can be
withdrawn from the rear of the unit. The filters must
be cleaned at regular intervals. Clean the air filters
at intervals of no more than 100 operating hours.
Reduce this interval in the case of heavily contaminated air
Please proceed as follows in order to clean the
unit:
1. Switch the unit of
2. Pull the filter out of the unit (Fig. 13).
3. Clean the dust of
4. In the case of heavy soiling clean the filter
5. Then allow the filter to dry in the air
6. Insert the filter back into the unit.
7. Ensure that the filter is dry and undamaged.
.
f and pull out the power
plug.
f the filter
cleaner in the event of slight soiling.
carefully in lukewarm water
. Use a vacuum
.
.
Fig. 13: Filter removal
1: Recirculated air filter
n Clean the unit using a damp cloth. Do not use
a jet of water.
n Do not use any caustic, abrasive or solvent-
based cleaning products.
n Only use suitable cleaning agents, even in the
event of severe soiling.
n Ensure that no moisture gets into the unit.
Clean the exhaust air and outlet openings regularly and thoroughly
often collects first
NOTICE!
Check the level of dirt on the on the exchanger
fins.
n Clean the air filter on the indoor unit at regular
intervals, and more frequently if necessary.
n It is recommended that you take out a mainte-
nance contract with an appropriate specialist
firm.
. This is where dirt most
NOTICE!
Never operate the indoor unit without the original filter. The heat exchanger fins on the indoor
unit with soil up if operated without a filter and
the device will suf
fer performance loss.
This enables you to ensure the operational reliability of the plant at all times!
21
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REMKO MKT ECO series
11 Exploded view of the unit and spare parts list
11.1 Exploded view of the unit
MKT 255 ECO, MKT 255 ECO , MKT 295 ECO, MKT 295 ECO
Fig. 14: Exploded view
22
Page 23
11.2 Spare parts list
Please contact REMKO GmbH & Co. KG directly to order spare parts.
All the spare part numbers for your unit
IMPORTANT!
T
o ensure the correct delivery of spare parts, please always the device type with the corresponding serial
number (see type plate)
can be found in the download area at www.remko.de.
No. Designation
1 Base plate
2 Conveyor rollers
3 Rubber stopper
4 Sealing cap
5 Condensate pump
6 Protective cap
7 Condensate tray cover
8 Protection grid hose connection
9 Exhaust air hose connection nozzle
10 Liquid level switch
11 Compressor
12 Vibration dampers
13 Hot gas line
14 Suction pipe
15 Power supply cable strain relief
MKT 255 ECO, MKT 255 ECO ,
MKT 295 ECO, MKT 295 ECO
On request by providing the serial number
16 Power supply cable with Schuko plug
17 Exhaust air hose interlock
18 Capacitor cover
19 Capacitor box fastening
20 Condenser
21 Venturi distributor
22 Capillary tube injection
23 Housing part, exhaust air fan right
24 Exhaust air fan motor
25 Exhaust air fan wheel
26 Housing part, exhaust air fan left
27 Capacitor for exhaust air fan motor
28 Housing intermediate part
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REMKO MKT ECO series
No. Designation
29 Housing part, recirculating fan motor bottom
30 Protection grid recirculating fan
31 Recirculating fan motor
32 Fan bearing
33 Housing part, recirculating fan motor top
34 Evaporator
35 Temperature probe, recirculation
36 Recirculation probe fastening
37 Power supply cover
38 Air filter
39 Air filter cover
40 Unit rear
41 Display board
42 Operating panel
MKT 255 ECO, MKT 255 ECO ,
MKT 295 ECO, MKT 295 ECO
43 Display circuit board
44 Display board cover
45 Housing front
46 Board housing cover
47 Board housing
48 Control board
49 Compressor capacitor
50 Capacitor compressor fastening clip
51 Housing part air outlet, recirculation
52 Air deflection blade, horizontal
53 Air deflection blade, vertical
54 Shift lever for air deflection blade
55 Capacitor, recirculating fan motor
56 Air humidity probe
57 Exhaust air hose
58 Window nozzle
On request by providing the serial number
59 Infrared remote control
We reserve the right to modify the dimensions and design as part of the ongoing technical development
process.
24
Page 25
12 Index
A
Assembly ............................. 15
C
Care and maintenance ................... 21
Cleaning the filter ....................... 21
Condensate drain ....................... 15
Conduct the warm exhaust air away ......... 16
D
Disposal of equipment ....................10
E
Electrical wiring diagram .................. 18
Environmental protection ..................10
Exhaust air routing variants
Via a flat nozzle ...................... 16
ia a wall pass-through ................ 16
V
Exploded view ..........................22
Exploded view of the unit ................. 22
I
Installation .............................15
M
Maintenance ........................... 21
O
Operation
Control panel ........................ 13
R
Recirculated air filter ..................... 15
S
Safety
Dangers of failure to observe the safety
notes ............................... 5
General ............................. 4
Identification of notes ................... 5
Note for inspection work .................7
Note for installation work ................ 7
Note for maintenance work .............. 7
Notes for the operator .................. 6
Personnel qualifications ................. 5
Refrigerant R290 ...................... 4
Safety-conscious working ................6
Unauthorised modification ...............9
Unauthorised replacement part manufacture . 9
Set-up ................................ 15
W
Warranty .............................. 10
25
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REMKO MKT ECO series
26
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Page 28
REMKO QUALITY WITH SYSTEMS
Air-Conditioning | Heating | New Energies
Telephone +49 (0) 5232 606-0
Telefax +49 (0) 5232 606-260
E-mail info@remko.de
URL www.remko.de
REMKO GmbH & Co. KG
Klima- und Wärmetechnik
Im Seelenkamp 12
32791 Lage
Hotline within Germany
+49 (0) 5232 606-0
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!
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