Page 1
Assembly and operating instructions
REMKO MXW
MXW 202, MXW 262, MXW 352, MXW 522
Inverter wall - room air conditioner in multisplit design
0048-2015-01 Edition 2, en_GB
Read the instructions prior to performing any task!
Page 2
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!
Installation and operating instructions (translation of the original)
Page 3
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............................................................................................................... 4
1.6 Safety notes for the operator........................................................................................................... 5
1.7 Safety notes for installation, maintenance and inspection.............................................................. 5
1.8 Unauthorised modification and changes......................................................................................... 5
1.9 Intended use................................................................................................................................... 5
1.10 Warranty........................................................................................................................................ 5
1.11 Transport and packaging.............................................................................................................. 6
1.12 Environmental protection and recycling........................................................................................ 6
2 Technical data....................................................................................................................................... 7
2.1 Unit data.......................................................................................................................................... 7
2.2 Unit dimensions............................................................................................................................... 8
3 Design and function.............................................................................................................................. 9
3.1 Unit description............................................................................................................................... 9
3.2 Combinations.................................................................................................................................. 9
4 Operation............................................................................................................................................. 11
5
Installation instructions for qualified personnel.............................................................................. 20
6 Installation........................................................................................................................................... 23
7 Condensate drainage connection and safe drainage...................................................................... 24
8 Electrical wiring................................................................................................................................... 25
8.1 General information....................................................................................................................... 25
8.2 Electrical connection diagram....................................................................................................... 26
8.3 Electrical drawings........................................................................................................................ 27
9 Commissioning................................................................................................................................... 31
10 Troubleshooting and customer service............................................................................................ 32
11 Care and maintenance........................................................................................................................ 35
12 Shutdown............................................................................................................................................. 37
13 Exploded view and spare parts list................................................................................................... 38
13.1 Exploded view of the unit ........................................................................................................... 38
13.2 Spare parts list............................................................................................................................ 39
14 Index..................................................................................................................................................... 40
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REMKO MXW
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1.1
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.
1.2
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.
Safety and usage instructions
General safety notes
Identification of notes
DANGER!
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!
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.
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.
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.
Dangers of failure to observe
1.4
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 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.
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1.6
Safety notes 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.
n The units and components may only be set up,
installed and maintained by qualified personnel.
n Protective covers (grille) 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 certain unit parts or components
may lead to burns or injury.
n The units and components must not be
exposed to any mechanical load, extreme
levels of humidity or extreme temperature.
n Spaces in which refrigerant can leak sufficient
to load and vent. Otherwise there is danger of
suffocation.
n All housing parts and device openings, e.g. air
inlets and outlets, must be free from foreign
objects, fluids or gases.
n The units must be inspected by a service tech-
nician at least once annually. Visual inspections and cleaning may be performed by the
operator when the units are disconnected from
the mains.
Safety notes for installation,
1.7
maintenance and inspection
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 Local regulations and laws such as Water
Ecology Act must be observed.
n The power supply should be adapted to the
requirements of the units.
n Units may only be mounted at the points pro-
vided for this purpose at the factory. The units
may only be secured or mounted on stable
structures, walls or floors.
n Mobile units must be set up securely on suit-
able surfaces and in an upright position. Stationary units must be permanently installed for
operation.
n The units and components should not be oper-
ated in areas where there is a heightened risk
of damage. Observe the minimum clearances.
n The units and components must be kept at an
adequate distance from flammable, explosive,
combustible, abrasive and dirty areas or
atmospheres.
n Safety devices must not be altered or
bypassed.
Unauthorised modification
1.8
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
Depending on the model, the units and the additional fittings with which they are equipped are only
intended to be used as an air-conditioner for the
purpose of cooling or heating the air in an
enclosed space.
Any different or additional use is a non-intended
use. The manufacturer/supplier assumes no liability for damages arising from a 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
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.
Warranty
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REMKO MXW
1.11
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!
1.12
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.
Transport and packaging
WARNING!
Environmental protection and recycling
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.
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2.1
Technical data
Unit data
Series MXW 202 MXW 262 MXW 352 MXW 522
Operating mode Wall unit for inverter multisplit outdoor units for cooling and heating
Nominal cooling output
Nominal heat capacity
Approx. application area
(room volume)
Adjustment range,
room temperature
1)
2)
kW
kW
m
3
°C +17 to +30
2.05 2.64 3.51 4.98
2.34 2.93 3.81 5.27
60 80 110 160
Operating range °C +17 to +32
Refrigerant
R 410A
4)
Max. operating pressure kPa 4200/1500
Air flow volume per level m³/h 350/460/530 350/460/530 430/540/630 650/780/1000
Sound pressure level per
3)
stage
dB (A) 28/37/40 28/37/40 31/38/42 34/40/47
Sound power dB (A) 52 52 54 56
Power supply V/Hz 230 / 1~ / 50
Enclosure class IP X 0
Electrical rated power consumption, cooling
1)
Electrical rated power consumption, heating
2)
Electrical rated current consumption, cooling
1)
Electrical rated current consumption, heating
2)
Refrigerant connection
Liquid line
Refrigerant connection
Suction pipe
Condensate drainage connection
W 24 24 24 62
W 24 24 24 62
A 0.11 0.11 0.11 0.28
A 0.11 0.11 0.11 0.28
Inche
s
1/4 (6.35) 1/4 (6.35) 1/4 (6.35) 1/4 (6.35)
(mm)
Inche
s
3/8 (9.52) 3/8 (9.52) 3/8 (9.52) 1/2 (12.70)
(mm)
mm 18 18 18 18
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REMKO MXW
Series MXW 202 MXW 262 MXW 352 MXW 522
Dimensions
Height
Width mm 750 750 835 990
Depth mm 198 198 198 218
Weight kg 7.0 7.0 9.0 12.0
Serial number 1328... 1329... 1330... 1331...
EDP no. 1623202 1623207 1623212 1623217
1)
Air intake temperature TK 27°C / FK 19°C, outside temperature TK 35°C, FK 24°C, max. air flow volume,
5m pipe length
2)
Air intake temperature TK 20°C, outside temperature TK 7°C, FK 6°C, max. air flow volume, 5m pipe
length
3)
Distance 1m free field
4)
Contains greenhouse gas according to Kyoto protocol
2.2
Unit dimensions
mm 280 280 280 315
Fig. 1: Unit dimensions MXW 202-522 (All measurements in mm)
Unit type Width Depth Height
MXW 202/262 750 198 280
MXW 352 835 198 280
MXW 522 990 218 315
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B
A
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3.1
The indoor unit on the split-design combined room
air conditioners serves to extract heat from the
indoor room being cooled. The outdoor unit then
expels this heat to the outside.
If combined heating/cooling units are operated as
heaters, the heat absorbed by the outdoor unit can
be discharged by the indoor unit into the room
being heated.
The unit is designed to be mounted high up on
indoor area. It is operated by an infra-red remote
control.
The indoor unit consists of a fin evaporator, evaporator fan, controller and condensate tray. The
indoor unit can be combined with REMKO outdoor
units from the MVT 601 DC, 901 DC and 1051 DC
series that provide sufficient cooling capacity. The
outdoor unit is controlled by the controller in the
indoor unit.
Condensate pumps are available as accessories.
Design and function
Unit description
Refrigerant piping is used to connect the indoor
unit to the outdoor unit.
Fig. 3: Cooling cycle schematic
1: Evaporator
2: Evaporator fan
3: Suction pipe connection
4: Injection pipe connection
3.2
Combinations
Indoor units
The MXW 202-522 indoor units can be used
together with the MVT 601 DC, 901 DC and 1051
DC series outdoor units. The following combinations can be selected.
Outdoor unit MVT 601 DC
Combination
One indoor unit
1
2
3
4
Fig. 2: System layout
A: Outdoor area
B: Indoor area
1: Indoor unit
2: Outdoor unit
3: Condensate drainage line
4: Condenser fan
5: Power supply
6: Shut-off valve
7: Suction pipe
8: Control line
9: Injection pipe
Two indoor units
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MXW
202
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MXW
262
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MXW
352
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MXW
522
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REMKO MXW
Outdoor unit MVT 901 DC
Combination
One indoor unit
1
2
3
4
Two indoor units
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MXW
202
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MXW
262
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MXW
352
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MXW
522
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Outdoor unit MVT 1051 DC
Combination
One indoor unit
1
2
3
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Two indoor units
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MXW
202
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MXW
262
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MXW
352
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MXW
522
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Three indoor units
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Three indoor units
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max. 6 m
Combination
32
Four indoor units
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MXW
202
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MXW
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MXW
352
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MXW
522
4
The indoor unit is easily operated using the
standard infrared remote control. The indoor unit
beeps to acknowledge the correct transmission of
data. If it is not possible to program the indoor unit
with the remote control, then it can also be manually operated.
Manual mode
The indoor units can be put into operation manually. After the air inlet screen has been opened,
the inner recessed key can be pressed and automatic mode can be activated. In manual mode, the
following settings apply:
Cooling mode: last setting
Fan speed: AUTO
Heating mode: last setting
Fan: AUTO
Press a key on the infrared remote control to interrupt manual mode.
Operation
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ll l
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Infrared remote control
The infrared remote control sends the programmed
settings a distance of up to 6 m to the receiver of
l
l
l
the indoor unit. Data will only be received correctly
if the remote control is pointed at the receiver and
no objects are obstructing the transmission path.
Two AAA batteries must be inserted into the
remote control in preparation. To do so, remove
the flap from the battery compartment and insert
the batteries the correct way around (see markings). Removing the batteries causes all stored
data to be lost. The remote control will then access
the default settings, which you are free to customise at any time.
Fig. 4: Maximum distance
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REMKO MXW
Alarms are indicated by a code (see chapter
Troubleshooting and customer service).
NOTICE!
Immediately replace flat batteries with a new
set, otherwise there is a risk of leakage. It is
recommended that the batteries are removed if
the equipment is shut down for longer periods.
Keys on the remote control
Help save on energy consumption in stand-by
mode! If the device, system or component is
not in use, we recommend disconnecting the
power supply. Components with a safety function is excluded from our recommendation!
Display on indoor unit
The display illuminates according to the settings.
Fig. 5: Display on indoor unit
1: Defrost indicator
2: Operating lamp
3: Timer activated / deactivated
4: Signal receiver
5: Display for setpoint
Fig. 6: Keys on the remote control
"ON/OFF" key
Press this key to operate the unit.
" " key
Press this key to reduce the temperature to 17 °C.
" " key
Press this key to increase the temperature to 30
°C.
"MODE" key
Press this key to select the operating mode. The
indoor unit has 5 modes:
1. Automatic mode
In this mode, the unit uses the setpoint to select
cooling or heating mode automatically.
2. Cooling mode
In this mode, the warm air in the room is cooled
down to the preset temperature.
For more, see the next page!
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"MODE" key (continued)
3. Dehumidification mode
In this mode, the room is dehumidified, thereby the
room temperature significantly lowered. Influencing
temperature and fan speed in this mode not possible.
4. Heating mode
In this mode, the cold air in the room is heated up
to the desired temperature.
5. Recirculation mode
In this mode, the air in the room is recirculated
without changing the temperature.
"FAN" key
Press this key to set the desired fan speed. 4
speeds are available:
Automatic, low, medium and high fan stage.
"LED/FOLLOW ME" key
Pressing this key for a short time activates/deactivates the LED display on the indoor unit.
If this key is pressed for more than 2 seconds, the
room temperature is detected by the remote control, rather than the indoor unit. The temperature
measured by the remote control is then transmitted
to the indoor unit at certain intervals.
"SLEEP" key
Pressing this key will increase or decrease the
target temperature by 1 °C within an hour in
cooling and heating mode respectively.
"TIMER ON" key
This key initiates the automatic switch-on time for
the unit. Each time the key is pressed, the automatic time setting increases in increments of 30
minutes. Once the setting shows 10.0, the automatic time setting increases in increments of 60
minutes each time the key is pressed. In order to
cancel the automatic time setting, simply set the
switch-on time to 0.0.
"TIMER OFF" key
This key initiates the automatic switch-off time for
the unit. Each time the key is pressed, the automatic time setting increases in increments of 30
minutes. Once the setting shows 10.0, the automatic time setting increases in increments of 60
minutes each time the key is pressed. In order to
cancel the automatic time setting, simply set the
switch-off time to 0.0.
"TURBO/SELF CLEAN" key
The "TURBO/SELF CLEAN" key allows the preset
temperature to be reached in the shortest possible
time. Pressing this key in "Cooling mode" causes
the unit to blow a blast of cooling air into the room
at a very high fan speed. The "Self-Clean" key has
not been assigned a function.
"SHORTCUT" key
Pressing this key for the first time sets the setpoint
to 24 °C and the fan speed to automatic. If this key
is pressed during operation when the remote control is activated, the unit is reset to the last operating mode that was set.
"SWING" key
"LOCK" key
Pressing this key suspends the remote control
This key starts and stops the process to move the
horizontal air exhaust fins up and down automati-
function. After this button is pressed again, the
remote control can be used again.
cally.
"RESET" key
"DIRECT" key
Pressing the "RESET" key resets all settings to
This key sets the desired fin position of the
their factory setting.
exhaust fins. Each time the "DIRECT" key is
pressed, the fins change position by 6°.
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REMKO MXW
Remote control display
Fig. 7: Remote control display
1: Automatic mode
2: Cooling mode
3: Dehumidification mode
4: Heating mode
5: Recirculation mode
6: Transmission signal indicator
7: Display for temperature/timer
8: Timer activated/deactivated
9: Display of fan speed
10: Sleep mode activated
11: Follow-me function activated
12: Remote control locked
13: Display on/off
Remote control on/off
The on/off status is shown by the circular symbol
on the bottom right of the remote control's display
field.
Key functions
A symbol is shown on the display for a short time
to indicate that the settings are being transferred.
Fig. 8: Key functions
Fig. 9: Remote control on/off
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4
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1
MODE
MODE
MODE
MODE
" " and " " keys
These keys can be used to adjust the target temperature up or down by 1 °C at a time. The temperature range can be changed to anywhere between
17℃ and 30℃.
"MODE" key
Use the "Mode" key to select between the individual operating modes.
A total of 5 modes are available:
1. Automatic
2. Cooling
3. Dehumidification
4. Heating
5. Recirculation
Fig. 10: " " and " " keys
Fig. 11: Mode key
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REMKO MXW
"Automatic" mode
In "automatic mode", the controller autonomously
selects between heating, recirculation or cooling
mode based on the room temperature Tr and the
selected setpoint Ts.
The setpoint can be adjusted using the "
" " keys
between 17 °C and 30 °C. The fan speed is
selected automatically.
Fig. 12: "Automatic" mode
Function:
Tr<Ts=1 °C: "Heating" operating mode is
selected.
Tr>Ts=2 °C: "Cooling" operating mode is
selected.
Tr<-1 °C...Ts...+2 °C: "Recirculation" operating
mode is selected.
After the compressor is shut down and not
required for more than 15 minutes within an operating mode, if the room temperature deviates, the
appropriate mode (heating, cooling or recircula-
tion) is selected again.
" and
"Dehumidification" mode
We recommend setting the target temperature to
24 °C in dehumidification mode. The air is cooled
to below its dew point due to the refrigerant's low
temperature. The excess moisture in the air is condensed by the evaporator, the room is dehumidified.
Fig. 13: "Dehumidification" mode
"Cooling" mode
In "Cooling" mode, the air in the room is cooled to
the set target temperature. The desired room temperature is set using the "Temp" keys in 1 °C increments. If the room temperature is 0.5 °C above the
selected target temperature, the indoor unit starts
to cool the air in the room. If the temperature falls
to approx. 1 °C below the set room temperature,
the controller will switch off cooling mode. To protect the compressor, the controller only turns
cooling on again after a wait time of 3 minutes.
The heating mode has priority!
Turns on the indoor unit to the heating mode,
switch off the other indoor units from which are
in cooling mode, the cooling. During heating
operation can not be cooled.
Fig. 14: "Cooling" mode
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1
FAN
FAN
FAN
FAN
"Heating" mode
In "Heating" mode, you can heat the room in spring
or autumn. The selected room temperature is set
using the "Temp" keys in 1 °C increments. If the
room temperature is 1°C below the selected target
temperature, the indoor unit will start to heat the air
in the room. If the set room temperature is
exceeded by approx. 1°C, the controller will switch
off heating mode. To protect the compressor, the
controller will wait 3 minutes before switching on
heating mode again. The fan does not start to
operate until the temperature on the heat
exchanger is 32 °C.
Fig. 15: "Heating" mode
"FAN" key
Function
1. Automatic
2. Low
3. Medium
4. High
Automatic function:
< approx. 1.5 °C = lower level
> approx. 1.5 °C = middle level
> approx. 3.5 °C = high level
The heating mode has priority!
Turns on the indoor unit to the heating mode,
switch off the other indoor units from which are
in cooling mode, the cooling. During heating
operation can not be cooled.
Fig. 16: "Fan" key
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LED
FOLLOW ME
> 2 sec.
SLEEP
3 sec.
TIMER
ON
TIMER
ON
REMKO MXW
"Follow me" function
If this function is selected, the room temperature is
detected by the remote control, rather than the
indoor unit. The temperature measured by the
remote control is then transmitted to the indoor unit
at certain intervals.
"TIMER ON" key
This key enables a switched off unit to be
switched on in 30 minute intervals (half an
hour).
Fig. 17: "Follow me" function
"SLEEP" key
This key activates programming function, which
reduces the target temperature in cooling mode by
1°C after one hour and by 2°C after two hours. The
unit is switched off automatically after eight hours.
Fig. 19: "Timer On" key
Fig. 18: "Sleep" key
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3 sec.
TIMER
OFF
TIMER
OFF
TURBO
SELF CLEAN
LOCK
"TIMER OFF" key
This key enables a switched on unit to be
switched off in 30 minute intervals (half an
hour).
"TURBO/SELFCLEAN" key
Pressing the "TURBO/SELFCLEAN" key activates
the maximum fan stage and the compressor.
Fig. 21: "Turbo" key
Fig. 20: "Timer Off" key
"LOCK" key
This indented key can be used to lock the remote
control's functions. This prevents the set values
from being adjusted inadvertently.
Fig. 22: "Lock" key
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RESET
REMKO MXW
"RESET" key
This indented key can be used to reset the remote
control.
Fig. 23: "Reset" key
5
Important notes prior to installation
Observe the operating manuals for the indoor unit
and the outdoor unit when installing the entire
system.
n Transport the unit in its original packaging as
n Check the contents of the packaging for com-
n Lift the unit on the corners and not on the
n The refrigerant piping (injection and suction
n Select an installation location which allows air
n Do not install the unit in the immediate vicinity
n Install the refrigerant piping from the indoor unit
n Seal off open refrigerant piping with suitable
n Only use the union nuts supplied with the
n Carry out all electrical wiring in accordance
n Ensure the electrical cables are properly con-
Installation instructions for qualified personnel
close as possible to the installation location.
You avoid transport damage by doing so.
pleteness and check the unit for visible transport damage. Report any damage immediately
to your contractual partner and the shipping
company.
refrigerant or condensate drainage connections.
pipe), valves and connections must be insulated against vapour density. If necessary also
insulate the condensate drainage line.
to freely flow through the air inlet and outlet
(see section "Minimum clearances")
of devices which generate intensive thermal
radiation. Installation in the vicinity of thermal
radiation reduces the unit output.
to the outdoor unit.
caps or adhesive strips to prevent the infiltration of moisture and never kink or compress
the refrigerant piping.
refrigerant piping. These should only be
removed shortly before connecting the refrigerant piping.
with applicable DIN and VDE standards.
nected to the terminals. Otherwise there is a
risk of fire.
Installation materials
The indoor unit is attached to the wall by a wall
bracket and 4 screws (to be provided by the customer).
Selection of installation location
The indoor unit is designed for horizontal wall
installation above doors. However, it can also be
used in the upper wall area (min. 1.75 m above the
floor).
20
Page 21
B
200
120
1500
120
120
A
A
D
C
B
Minimum clearances
Observe the minimum clearances to allow access
for maintenance and repair work and facilitate
optimum air distribution.
Fig. 24: Minimum clearances (All measurements in
mm)
A: Air inlet
B: Air outlet
Connection variants
The following connection variants can be used for
the refrigerant, condensate and control lines.
Fig. 25: Connection variants
A: Outlet on the wall, right
B: Outlet through the wall, right
C: Outlet through the wall, left
D: Outlet on the wall, left
21
Page 22
A
B
C
D
E
F
G H I
J
A
B
C
D
E
F
G H I J
REMKO MXW
Wall bracket for the indoor unit
Fig. 26: Mounting points for the wall brackets MXW 202/262 and MXW 352 (front view, all dimensions in mm)
Fig. 27: Mounting points for the wall bracket MXW 522 (front view, all dimensions in mm)
Gerätetyp/Maß A B C D E F G H I J
MXW 202/262 375 375 165 275 45 45 70 305 280 95
MXW 352 417,5 417,5 210 230 45 45 70 347,5 317,5 100
MXW 522 497,5 497,5 183 227 45 45 100 397,5 357,5 140
All dimensions in mm. Diameter pipe breakthrough is Ø 65 mm.
The wall bracket for the units must be attached with suitable screws and anchors.
22
Page 23
6
Unit installation
The unit is attached by means of a wall bracket,
considering the air discharge side located in the
lower part.
1. Mark the mounting points on the structurally
2. If necessary, remove the break out opening
3. Connect the refrigerant piping, electrical
4. Hang the indoor unit onto the wall bracket by
5. Check again that the unit is level. (
Installation
NOTICE!
Installation should only be performed by
authorised specialists.
permissible building sections according to the
dimensions of the wall bracket.
of the housing.
cables and condensate drainage line to the
indoor unit as described below.
tilting it back slightly and by pressing the
bottom part of the unit against the bracket.
Fig. 28)
Connecting the refrigerant piping
The refrigerant piping is connected (responsibility
of the customer) on the back side of the unit.
It may be necessary to fit a reducer or flared
adapter to the indoor unit. These fittings are
included as standard with the indoor unit.
Once installed, the connections should be insulated to make them vapour diffusion proof.
NOTICE!
The unit is factory filled with dry nitrogen for
leak testing purposes. The pressurised
nitrogen is released when the union nuts are
undone.
Fig. 28: Horizontal positioning
The wall bracket for the units must be attached
with suitable screws and anchors.
23
Page 24
min. 2%
REMKO MXW
7
Condensate drainage connection
If the temperature falls below the dew point on the
evaporator, condensation will form on the indoor
unit during cooling.
Below the evaporator is a collection tray, which
must be connected to a drain.
n The condensate drainage line provided by the
n Route the unit's condensate drainage line
n When operating the unit at outside tempera-
n Following installation, check that the conden-
Condensate drainage
connection and safe
drainage
customer should have an incline of at least 2%
(Fig. 29). If necessary, fit vapour-diffusionproof insulation.
freely into the drain line. If the condensate runs
directly into a sewer pipe, fit a trap to prevent
any unpleasant odours.
tures below 0 °C, ensure the condensate
drainage line is laid to protect it against frost. If
necessary, fit a pipe heater.
sate run off is unobstructed and ensure that the
line is durably leak tight.
Fig. 29: Condensate drainage connection
The condensate hose is designed to be connected
on the left-hand side (as viewed from the front).
Safe drainage in the event of leakages
Local regulations or environmental laws, for
example the German Water Resource Act (WHG),
can require suitable precautions to protect against
uncontrolled drainage in case of leakage to provide
for safe disposal of escaping air conditioning fluid
or hazardous media.
24
Page 25
2
1
4
3
1
8
8.1
A protected power supply cable is to be connected
to the outdoor unit and 4-core control line is to be
connected to the indoor unit respectively.
Electrical wiring
General information
DANGER!
All electrical installation work is to be performed by specialist companies. Disconnect
the power supply when connecting the electrical terminals.
NOTICE!
The electrical connection for the units must be
made at a separate feedpoint with a residual
current device in accordance with local regulations and should be laid out by an electrician.
Make the connection as follows:
1. Open the air inlet grill.
2. Remove the covers on the right-hand side
(Fig. 30).
3. Connect the customer-laid control line to the
terminals (Fig. 30).
4. Join the customer-laid control line to the sup-
plied control line in a professional manner.
5. Insert the control line plug into the corre-
sponding socket on the outdoor unit.
6. Re-assemble the unit.
n We recommend installing a main / repair switch
on the building close to the unit. This is the
responsibility of the customer.
n The terminal blocks for making the connections
are located at the rear of the unit. When the
unit is installed, measurements can be made
from the front by removing the cover.
n If an optional condensate pump is used in con-
junction with the unit, it may be necessary to
install an additional relay with a higher contact
rating after the switch-off contact on the pump
to switch off the compressor.
The control line to the outdoor unit contains a data
cable which serves to realise communication
between the indoor unit and the outdoor unit. This
is used for controlling the cooling and heating
capacity and for forwarding malfunction codes to
the indoor unit. If the length is insufficient, you can
extend the control lines on the indoor unit.
Fig. 30: Connecting the indoor unit
1: Cover
2: Strain relief
3: Terminal block for control line
4: Control line from outdoor unit
25
Page 26
230V/1~/50 Hz
L(A) N(A) S(A) L N
L(B)
N(B) S(B)
L(1) 1 2(N) S
L(C) N(C) S(C)
L(D)
N(D) S(D)
L(1) 1 2(N) S L(1) 1 2(N) S
L(1) 1 2(N) S
A
1
B1 B2
B3 B4
2
2
REMKO MXW
8.2
Electrical connection diagram
Connection MXW 202-522
Fig. 31: Electrical connection diagram
A: Outdoor unit MVT 601 DC-1051 DC
B: Indoor unit MXW 202-522
1: Power supply
2: Communication lines
26
Page 27
3
4
CE-KFR26G/BP3N1Y-11M.D.11.NP2-1
202302130860
CN16
CN12_1
CN12_2
N
CN11
CN4
SW1
CN5
CN9
CN8
CN10A
B
C
D
A 1 2
3
4
6
5
8.3
Electrical drawings
MXW 202
Fig. 32: Electrical drawings
A: Connection to the terminal block indoor unit
(Contact: S)
B: Connection to the terminal block indoor unit
(Contact: N)
C: Connection to the terminal block indoor unit
2: Swing motor
3: Probe evaporator
4: Air circulation probe
5: Display
6: Ion generator
(Contact: 1)
D: Connection to the terminal block indoor unit
(Contact: L)
1: Evaporator fan motor
27
Page 28
3
4
CE-KFR26G/BP3N1Y-11M.D.11.NP2-1
202302130860
CN16
CN12_1
CN12_2
N
CN11
CN4
SW1
CN5
CN9
CN8
CN10A
B
C
D
A 1 2
3
4
6
5
REMKO MXW
MXW 262
Fig. 33: Electrical drawings
A: Connection to the terminal block indoor unit
(Contact: S)
B: Connection to the terminal block indoor unit
(Contact: N)
C: Connection to the terminal block indoor unit
D: Connection to the terminal block indoor unit
(Contact: 1)
(Contact: L)
1: Evaporator fan motor
2: Swing motor
3: Probe evaporator
4: Air circulation probe
5: Display
6: Ion generator
28
Page 29
MXW 352
3
4
CE-KFR26G/BP3N1Y-11M.D.11.NP2-1
202302130860
CN16
CN12_1
CN12_2
N
CN11
CN4
SW1
CN5
CN9
CN8
CN10A
B
C
D
A 1 2
3
4
6
5
Fig. 34: Electrical drawings
A: Connection to the terminal block indoor unit
(Contact: S)
B: Connection to the terminal block indoor unit
(Contact: N)
C: Connection to the terminal block indoor unit
(Contact: 1)
D: Connection to the terminal block indoor unit
(Contact: L)
2: Swing motor
3: Probe evaporator
4: Air circulation probe
5: Display
6: Ion generator
1: Evaporator fan motor
29
Page 30
3
4
CE-KFR50G/BP3N1Y-11M.D.11.NP2-1
202302130861
CN9
CN11
CN10A
CN12-2
CN8
CN12-1
SW1
L_IN
L_OUT
CN5
CN16
1
2
A 3
4
B
D
C
5 6
REMKO MXW
MXW 522
Fig. 35: Electrical drawings
A: Connection to the terminal block indoor unit
(Contact: N)
B: Connection to the terminal block indoor unit
(Contact: S)
C: Connection to the terminal block indoor unit
(Contact: 1)
D: Connection to the terminal block indoor unit
(Contact: L)
1: Evaporator fan motor
2: Ion generator
3: Display
4: Swing motor 1
5: Air circulation probe
6: Probe evaporator
30
Page 31
9
Function test of cooling operating mode
1. Switch the power supply on.
2. Use the remote control to switch on the unit
3. Measure and record all the required values in
4. Check the unit control system using the fol-
5. Check the correct function of the condensate
Commissioning
NOTICE!
Commissioning should only be performed by
specially trained personnel and documented
after the certificate has been issued. Observe
the operating manuals for the indoor unit and
outdoor unit when commissioning the entire
system.
NOTICE!
Observe the operating manuals for the indoor
unit and outdoor unit when commissioning the
entire system.
and select the cooling mode, maximum fan
speed and lowest target temperature.
the commissioning report and check the
safety functions.
lowing functions described in the "Operation"
chapter: "Timer", "Temperature setting", "Fan
speeds" and switching to recirculation or
dehumidification mode.
drainage line by pouring distilled water into
the condensate tray. A bottle with a spout is
recommended for pouring the water into the
condensate tray.
Final tasks
n Re-install all disassembled parts.
n Familiarise the operator with the system.
NOTICE!
Check that the shut-off valves and valve caps
are tight after carrying out any work on the
cooling cycle. Use appropriate sealant products as necessary.
Function test of heating operating mode
1. Switch the power supply on.
2. Use the remote control to switch on the unit
and select the heating mode, maximum fan
speed and highest target temperature.
3. Measure and record all the required values in
the commissioning report and check the
safety functions.
4. Check the unit control system using the functions described in the "Operation" chapter
(timer, temperature setting, fan speeds).
31
Page 32
REMKO MXW
10
The unit and components are manufactured using state-of-the-art production methods and tested several
times to verify their correct function. However, if malfunctions should occur, please check the functions as
detailed in the list below. For systems with an indoor unit and outdoor unit, refer to the chapter "Troubleshooting and customer service" in both operating manuals. Please inform your dealer if the unit is still not
working correctly after all function checks have been performed!
Operational malfunctions
Malfunction Possible causes Checks Remedial measures
The unit does not
start or switches
itself off.
Troubleshooting and customer service
Another indoor unit is in
heating mode.
Power failure, undervoltage
Defective mains fuse /
main switch turned off
Damaged power supply Does all other electrical
Wait time after switching on
is too short
Check the mode of the
other indoor units.
Does all other electrical
equipment function correctly?
Are all lighting circuits functioning correctly?
equipment function correctly?
Does a restart occur after
around 5 minutes?
Operate all indoor units in
cooling mode or switch
them off.
Check voltage and if necessary wait until turned on
again.
Replace mains fuse, switch
main switch on
Repair by specialist firm
Schedule longer wait times
The unit does not
respond to the
remote control
Operational temperature
range too low or exceeded
Electrical surges caused by
thunderstorms
Malfunction of the external
condensate pump
Transmission distance too
far / receiver affected by
interference
Defective remote control Is the unit running in
Receiver or transmitter unit
exposed to excessive solar
radiation
Electromagnetic fields are
interfering with transmission
Key in remote control
jammed / two buttons
pressed at same time
Are the fans in the indoor
unit and outdoor unit
working correctly?
Have there been lightning
strikes in the area recently?
Did the pump shut down
due to a fault?
Does the indoor unit beep
when pressing a key?
manual mode?
Does it function correctly in
the shade?
Does it function after
removing potential sources
of interference?
Does the “Transmitting”
symbol appear on the display?
Take into account the temperature range for the
indoor unit and outdoor unit
Turn the main fuse off and
turn it on again. Have it
inspected by a specialist
Check and if necessary
clean the pump
Reduce the distance to
less than 6 m or change
position
Replace the remote control
Place the receiver and/or
transmitter unit in the
shade
Signal is not transmitted
when interference sources
are operational
Release the key / only
press one key
Batteries in remote control
are flat
Have new batteries been
inserted? Is the display
incomplete?
Insert new batteries
32
Page 33
Malfunction Possible causes Checks Remedial measures
The unit is running
but only provides
reduced or no
cooling or heating
capacity.
Condensate discharge on unit
Filter is dirty / air inlet /
outlet opening is blocked
by debris.
Windows and doors open.
Heating / cooling load has
increased
Neither cooling nor heating
mode has been set
Fins on outdoor unit
blocked by foreign objects
Leaking cooling cycle Are there signs of frost on
Drainage pipe on collection
container clogged / damaged
Faulty external condensate
pump or float
Condensate has not
drained away and has collected in the condensate
drainage line
Condensate does not drain
off
Have the filters been
cleaned?
Have structural / usage
modifications been made?
Is the "Cooling"/"Heating"
symbol shown on the display?
Is the fan on the outdoor
component running? Are
the fins unobstructed?
the exchanger fins of the
indoor unit?
Can the condensate drain
off without any obstruction?
Is the collection tray full of
water and the pump not
running?
Is there an incline on the
condensate drainage line?
Check there is no blockage
in the pipe.
Are the condensate
drainage lines unblocked
and is there a steady
incline? Are the condensate pump and liquid level
switch functioning correctly?
Clean the filters
Close windows and doors /
install additional units
Correct the settings for the
unit
Check the fan or winter fan
speed control, reduce the
air resistance
Repair by specialist
Clean the drainage pipe
and collection container
Call out a specialist to
replace the pump
Ensure there is an incline
when laying the condensate drainage line and
clean the pipe.
Route the condensate
drainage line with an
incline and clean it. If the
liquid level switch or the
condensate pump is defective, have them replaced.
Leaking cooling cycle Are there signs of frost on
the exchanger fins of the
indoor unit?
33
Repair by specialist
Page 34
REMKO MXW
Fault indicated on indoor unit MXW 202-522
Display Cause Required action
E0 EEPROM error
E1
E2 Phase monitoring has responded Check wiring
E3 Evaporator fan motor speed too low / defective Contact specialist dealer
E4
E5
EC
F1
F2
F3
Communication error between outdoor and
indoor unit
Ambient air probe on indoor unit defective /
connection interrupted (T1)
Register probe on indoor unit defective /
connection interrupted (T2)
Cooling mode: no cooling output after 30 min.
Heating mode: no heating capacity after
30 min.
Ambient air probe for outdoor unit faulty /
connection interrupted (T4)
Register probe on outdoor unit defective /
connection interrupted (T3)
Heat gas probe on outdoor unit faulty /
connection interrupted (T5)
Switch off power to unit for 1 min. Contact specialist dealer
Contact specialist dealer
Check connection and plug
Check connection and plug
Contact specialist dealer
Check connection and plug
Check connection and plug
Check connection and plug
F4 EEPROM error on outdoor unit
P0
P1 Overload switch on outdoor unit tripped (250V) Check the voltage of the power supply
P2
P3
P5 Mode conflict
See the operating instructions of the relevant outdoor unit for fault diagnosis and troubleshooting.
Rotational speed monitoring on compressor
has responded (inverter module)
Excessive temperature (Klixon) compressor
has tripped
Compressor overcurrent protection
has responded
Switch off power to unit for 1 min.
Contact specialist dealer.
Check connections CN4 and CN1 on the outdoor unit PCB / Contact specialist dealer
Check the refrigerant quantity / Check the
resistance of the compressor sensor (normal
0Ω)
Check winding resistance of the compressor
(1Ω = U-V / U-W / V-W)
The indoor units operate in different operation
modes (e.g. an indoor unit in cooling mode and
another in automatic mode). Please select the
same mode!
34
Page 35
11
Regular care and observation of some basic points
will ensure trouble-free operation and a long
service life.
Prior to performing any work, ensure the equipment is disconnected from the voltage supply
and secured to prevent accidental switch-on!
Care
n Ensure the unit is protected against dirt, mould
and other deposits.
n Only clean the unit using a damp cloth. Do not
use any caustic, abrasive or solvent-based
cleaning products. Do not use a jet of water.
n Clean the fins on the unit prior to long shut-
down periods.
Care and maintenance
DANGER!
Maintenance
n It is recommended that you take out a mainte-
nance contract with an annual service from an
appropriate specialist firm.
This enables you to ensure the operational reliability of the plant at all times!
NOTICE!
Statutory regulations require an annual leak
test for the cooling cycle dependant on the
refrigerant quantity. Inspection and documentation of the work performed is to be carried out
by specialist technicians.
Type of task
Checks/maintenance/inspection
General
Check voltage and current
Check function of compressor/fans
Dirt on condenser/evaporator
Check refrigerant fill quantity
Check condensate drainage
Check insulation
Check moving parts
Sealing test for cooling cycle
1)
See note
Commis-
sioning
l
l
l
l l
l
l
l
l
l
Monthly Every 6
months
l
l
Yearly
l
l
l
l
l
1)
l
35
Page 36
REMKO MXW
Cleaning the housing
1. Disconnect the power supply to the unit.
2. Open and fold the air inlet grill on the front
side upwards.
3. Clean the grill and cover with a soft, damp
cloth.
4. Switch the power supply back on.
Air filter for indoor unit
Clean the air filter at intervals of no more than 2
weeks. Reduce this interval if the air is especially
dirty.
Cleaning the filter
1. Disconnect the power supply to the unit.
2. Open the front side of the unit by folding the
grill upwards and allowing it to engage
(Fig. 36).
3. Raise the filter and pull it out in a downwards
direction (Fig. 36).
4. Clean the filter with a commercially available
vacuum cleaner (Fig. 37
dirty side so it is facing upwards.
5. Dirt can also be removed by carefully
cleaning with lukewarm water and mild
cleaning agents (
should be face down.
6. If water is used, let the filter dry out properly
in the air before fitting it back into the unit.
Fig. 38). The dirty side
). To do so, turn the
Fig. 36: Folding the grill upwards
Fig. 37: Cleaning with a vacuum cleaner
7. Carefully insert the filter. Ensure that it
locates correctly.
8. Close the front side as described above in
reverse order.
9. Switch the power supply back on.
10. Switch the unit back on.
Cleaning the condensate pump (accessories)
The indoor unit may contain an optional integrated
or separate condensate pump, which pumps out
any accumulated condensate into higher positioned drains.
Observe the care and maintenance instructions in
the separate operating manual.
Fig. 38: Cleaning with lukewarm water
36
Page 37
12
Temporary shutdown
1. Let the indoor unit run for 2 to 3 hours in
2. Shut down the system using the remote con-
3. Switch off the electrical power supply to the
4. Check the unit for visible signs of damage
Shutdown
recirculation mode, or in cooling mode at
maximum temperature, to extract any
residual humidity from the unit.
trol.
unit.
and clean it as described in the "Care and
maintenance" chapter.
Permanent shutdown
Ensure that units and components are disposed of
in accordance with local regulations, e.g. through
authorised disposal and recycling specialists or at
collection points.
REMKO GmbH & Co. KG or your contractual
partner will be pleased to provide a list of certified
firms in your area.
37
Page 38
11
REMKO MXW
13
13.1
Exploded view and spare parts list
Exploded view of the unit
Fig. 39: Exploded view of the unit MXW 202-522
We reserve the right to modify the dimensions and design as part of the ongoing technical development
process.
38
Page 39
13.2
No. Designation MXW 202 MXW 262 MXW 352 MXW 522
1 Front panel, complete 1112000 1112000 1112014 1112025
2 Air filter, set 1112001 1112001 1112015 1112026
3 Circuit board, display 1112002 1112002 1112002 1112002
4 Swing motor 1112003 1112003 1112003 1112003
5 Air exhaust fins, set 1112004 1112004 1112016 1112027
6 Condensate tray 1112005 1112005 1112017 1112028
7 Evaporator 1112006 1112006 1112018 1112029
8 Fan wheel 1112007 1112007 1112019 1112030
9 Fan motor 1112081 1112040 1112040 1112044
10 Control board 1112082 1112041 1112043 1112045
11 IR remote control 1112080 1112080 1112080 1112080
12 Ambient air probe 1112012 1112012 1112012 1112012
Spare parts list
From serial number: 1328... 1329... 1330... 1331...
13 Evaporator probe 1112013 1112013 1112013 1112013
Spare parts not illustrated
Ion generator module 1112046 1112046 1112046 1112059
When ordering spare parts, please always state the EDP no., unit number and unit type (see name plate)!
39
Page 40
REMKO MXW
14
A
Alarms
C
Care and maintenance....................................... 35
Cleaning
Combination possibilities..................................... 9
Condensate drainage connection...................... 24
Connecting the refrigerant piping....................... 23
Customer service............................................... 32
D
Disposal of equipment......................................... 6
E
Electrical connection diagram............................ 26
Electrical drawings........................... 27, 28, 29, 30
Electrical wiring.................................................. 25
Environmental protection..................................... 6
Exploded view of the unit................................... 38
F
Fault indicator ................................................... 34
Function test
I
Infrared remote control....................................... 11
Installation location, selection............................ 20
Installation materials.......................................... 20
Intended use........................................................ 5
K
Keys on the remote control................................ 12
M
Maintenance...................................................... 35
Manual mode..................................................... 11
Index
Checks.......................................................... 32
Possible causes............................................ 32
Remedial measures...................................... 32
Air filter for indoor unit .................................. 36
Condensate pump
Housing......................................................... 36
cooling mode................................................. 31
heating mode................................................ 31
........................................ 36
Minimum clearances.......................................... 21
O
Ordering spare parts.......................................... 39
P
Propellant according to Kyoto Protocol................ 8
R
Refrigerant piping, connection........................... 23
Remote control
Keys.............................................................. 12
S
Safe drainage in the event of leakages.............. 24
Safety
Dangers of failure to observe the safety
notes............................................................... 4
General........................................................... 4
Identification of notes...................................... 4
Notes for inspection........................................ 5
Notes for installation....................................... 5
Notes for maintenance.................................... 5
Personnel qualifications.................................. 4
Safety-conscious working............................... 4
Safety notes for the operator.......................... 5
Unauthorised modification ............................. 5
Unauthorised replacement part manufacture.. 5
Selection of installation location......................... 20
Shutdown
Permanent.................................................... 37
Temporary..................................................... 37
Spare parts list................................................... 39
T
Troubleshooting and customer service.............. 32
U
Unit installation................................................... 23
W
Wall bracket....................................................... 22
Warranty.............................................................. 5
40
Page 41
41
Page 42
REMKO MXW
42
Page 43
Page 44
Consulting
Thanks to intensive training,
our consultants are always
completely up-to-date in terms
of technical knowledge. This has
given us the reputation of being
more than just an excellent,
reliable supplier:
REMKO, a partner
helping you find solutions to
your problems.
Distribution
REMKO offers not just a well
established sales network both
nationally and internationally, but
also has exceptionally highlyqualified sales specialists.
REMKO field staff are more than
just sales representatives: above
all, they must act as advisers to
our customers in air conditioning
and heating technology.
SFlbCustomer Service
Our equipment operates
precisely and reliably. However,
in the event of a fault, REMKO
customer service is quickly at
the scene. Our comprehensive
network of experienced dealers
always guarantees quick and
reliable service.
REMKO INTERNATIONAL
… and also right in your neighbourhood!
Make use of our experience and advice
We reserve the right to make technical changes, and provide no guarantee as to the accuracy of this data!
REMKO GmbH & Co. KG
Air conditioning and heating technology
Im Seelenkamp 12 D-32791 Lage
Postfach 1827 D-32777 Lage
Telephone +49 52 32 606-0
Telefax +49 5232 6 06-260
E-mail [email protected]
Website www.remko.de
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