REMKO ML 262 DC User Manual

REMKO ML
ML 262 DC, ML 352 DC, ML 522 DC
Inverter wall mounted units in split design and frost protection function
Operation · Technology · Spare parts
Edition GB – W11
Contents
Safety notes
Warranty
Environmental protection and recycling
Intended use
Transport and packaging
Equipment description
Operation
Decommissioning
Care and maintenance
Troubleshooting and customer service
Installation instructions for qualified personnel
Installation
Monitoring for leaks
4
4
4
4
5
5
6-12
12
12-13
14-15
15-18
18-19
20
Condensate drain
Electrical connection
Electrical connection diagram
Electrical circuit diagram
Before commissioning
Add refrigerant
Commissioning
Unit dimensions
Exploded view
Spare parts list
Performance datas
Technical data
EC-Declaration Conformity
20
20-21
21
22-23
24
24
24-25
25
26-27
26-27
28-29
30
31
Made by REMKO
Read these operating instructions carefully before commissioning / using the device! These instructions are an integral part of the system and must always be kept near or on the device. This operating manual is a translation of the German original.
Subject to modifications; No liability accepted for errors or misprints!
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REMKO ML...DC - ARCTIC
Safety notes
Carefully read this manual before putting commissioning the equipment. It provides useful tips and information as well as hazard warnings to prevent injury or material damage . Failure to follow the directions in this manual can result in endangerment to persons, the environment and the equipment itself and will void any claims for liability.
Keep this manual and the
refrigerant datasheet near the unit.
The unit may only be set up and
installed by qualified personnel.
The setup, connection and
operation of the unit and its components must be in accordance with the operating conditions stipulated in this manual and comply with all applicable local regulations.
Mobile units must be set up
securely on suitable surfaces and in an upright position. Stationary units must be permanently installed for operation.
Modification of equipment
and components supplied by REMKO is not permitted and can cause malfunctions.
Equipment and components
may not be operated in areas where there is an increased risk of damage. Observe the minimum clearances.
The electrical voltage supply
is to be adapted to the requirements of the equipment.
The operational safety of
equipment and components is only assured if they are used as intended and fully assembled. Safety devices may not be modified or bypassed.
4
Do not operate equipment
or components with obvious defects or signs of damage.
All housing parts and openings,
e.g. air inlets and outlets, must be free of foreign objects, fluids or gases.
The equipment and components
must be kept an adequate distance from flammable, explosive, combustible, aggressive and dirty areas or atmospheres.
Touching equipment parts can
result in burns or injury.
Installation, repair and
maintenance work may only be carried out by authorised specialists. Visual inspections and cleaning can be performed by the operator as long as the equipment is not under voltage.
Take appropriate hazard
prevention measures when performing installation, repair or maintenance work or cleaning the equipment.
The equipment or components
are not to be exposed to any mechanical stresses, extreme levels of humidity or direct sunlight.
Warranty
Prerequisite for any warranty claims are that the purchaser or their customer has completely filled out the "warranty registration card" and commissioning report included with the unit at the time when the equipment was purchased and first put into operation and returned it to REMKO GmbH & Co. KG. The warranty conditions are listed in the "General Business and Delivery Conditions". Only the contractual parties can strike special agreements beyond these conditions. For this reason please first contact your direct contractual partner.
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. through authorised disposal and recycling specialists or at collection points.
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.
Transport and Packaging
The equipment is shipped in in sturdy transport packaging. Immediately check the equipment on delivery and make note of any damage or missing parts on the delivery note and inform the forwarding agent and your contractual partner. No warranty can be assumed for later claims.
Refrigerant circuit diagram for the outdoor component
Condenser fan
M
Reverse flow valve
Connection Manometer
M
Capillary tube throttle elementFilter dryerCondenser
Compressor
Connection valve Suction line
Connection valve Injection line
Equipment description
The ML 262-522DC room air conditioning units have a REMKO ML...DC AT outdoor component as well as an ML...DC IT indoor unit.
When in cooling mode, the outdoor component serves to release the heat extracted by the indoor unit from the room being cooled. When in heating mode,
the heat absorbed by the outdoor component can be released by the indoor unit into the room being heated.In both operating
modes, the performance of the compressor adjusts itself precisely to the demand, thereby regulating the target temperature with minimal temperature fluctuations. This "inverter-technology" results in energy savings over conventional split systems and also reduces noise emissions to a particularly low level. The outdoor component can be installed outdoors or indoors providing that certain requirements are met. The indoor unit is designed to be mounted high up on indoor walls. Operation takes place using an infrared remote control.
The outdoor component consists of a refrigerant circuit with compressor, fin condenser, condenser fan, reverse flow valve and throttle element. The outdoor component is controlled via the regulation of the indoor unit.
The indoor unit consists of a fin vaporiser, vaporiser fan, regulation system and condensation pan.
Floor consoles, wall consoles, refrigerant pipes and condensation pumps are available as accessories.
Refrigerant circuit diagram for the indoor unit
Vaporiser fan
Vaporiser
System configuration
Indoor area
Indoor unit
Condensation line
Outdoor area
Outdoor
component
Condensation line
Connection to
suction pipe
Connection to injection line
Mains cable
Control line
Injection line
Suction line
Stop valve
Condenser fan
The connection between the indoor unit and the outdoor component is made by way of the refrigerant lines.
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REMKO ML...DC - ARCTIC
Operation
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 using the remote control, it can also be manually operated.
Manual operation
The indoor units can commissioned manually. After the air inlet screen has been opened, the inner recessed button can be pressed and automatic mode can be activated. In manual operation, the following settings apply:
Cooling mode: last setting Fan speed AUTO Heating mode: last setting Fan: AUTO
Press the button on the infra-red remote control to interrupt manual operation.
Display on indoor unit
The display illuminates according to the settings.
v
Display on indoor unit
Display
Display of coded
error messages,
Automatic mode
Defrosting mode
room and target
temperature
Operation
Timer
Infrared remote control
The infrared remote control sends the programmed settings over a distance of up to 6 m to the receiver of the indoor unit. Data will only be received correctly if the remote control is pointed at the receiver and no objects obstruct the transmission path.
First insert the batteries supplied at delivery (2 x type AAA) into the remote control. To do so, remove the cover of the battery compartment and insert the batteries as indicated according to their polarisation (see markings).
Max. distance 6 m
CAUTION
Faults are shown in code (See chapter fault remedy and customer service)
max. 6 m
NOTE
Replace discharged batteries immediately with a new set in order to avoid the danger of leakage. It is recommended that the batteries are removed if the equipment is shut down for longer periods.
6
Buttons on the remote control
Buttons on the remote control
"ON/OFF" Button
Press this button to start the unit.
"" button
This button is used to
reduce the desired temperature to as low as 17 °C.
"" button
This button is used to
increase the desired temperature to up to 30 °C.
"MODE" button
Use this button to select the operating mode. The indoor unit has 4 modes:
1. Automatic mode In this mode, the unit works in cooling or in heating mode.
2. Cooling mode In this mode, the warm room air is cooled to the desired temperature.
3. Dehumidification mode In this mode the room is mainly dehumidified and the adjusted temperature is maintained.
4. Heating mode In this mode, the warm air in the room is heated up to the desired temperature.
5. Circulation mode In this mode, the air in the room is circulated with no change in temperature.
"FAN" button
Press this button to set the
desired fan speed. 4 speeds are available: Automatic, high, medium and low fan speed.
"AIR DIRECTION" button
This button sets the desired
fin position of the exhaust fins. Various fixed positions and an oscillating function are available.
Button "SLEEP"
After pressing this button,
the target temperature in cooling mode automatically increases by 1 °C within one hour. In heating mode, the target temperature is reduced by 1 °C within one hour.
"SWING" button
This button directly activates
the oscillating function of the fins for better air distribution in the room.
"TIMER ON" button
This button is used to
program the time at which the unit is automatically activated in
30 minute intervals within the following 24 hours.
"TIMER OFF" button
This button serves to program
the automatic shut-off time in 0.5 h intervals within the following 24 hours.
"RESET" button
This button resets the remote
control to its factory default configuration.
"TURBO" button
The TURBO function activates
the maximum fan speed and the compressor.
"Lock" button
This button can be used to lock
the remote control's keys. An unintentional adjustment can be prevented.
"LED DISPLAY" button
This button switches the display
on and off (no influence on unit function)
“FP” button
This button activates the “frost protection function”, which sets the nominal temperature in heating mode to 6°C. This function is used to guaranteed frost protection in unsupervised rooms. When the FP function is active, the device switches heating mode on and at 10°C switches it off again. This serves to ensure that the frost protection limit is not reached. If “FP” mode is activated, this is indicated in the display. Pressing “ON/OFF”,”MODE”, “FAN”, “TEMP ▲ ▼ “TIMER ON/OFF”, FP” will quit the function.
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REMKO ML...DC - ARCTIC
Remote control display
Indicator arrows will be displayed according to the settings.
Display on indoor unit
Automatic operation
Cooling mode
Dehumidifying mode
Heating mode
Fan speed
Temperature display
Button functions
A symbol is shown on the display to indicate that the settings are being transferred.
Remote control on/off
The remote control's on/off function is shown at the upper right of the remote control by a "wind symbol".
RESET Button
ON/OFF Button
The remote control can be reset by pressing the (counter sunk) RESET button.
Your air-conditioner is activated and deactivated by pressing the ON / OFF button. The programmed settings and adjustment values before the unit was turned off will appear on the display.
ON/OFF ON/OFF
8
▲/▼ Buttons
Using the button, the target temperature can be adjusted up or down by 1°C. The temperature range lies between 17°C and 30°C
MODE Button
Cooling mode
Automatic mode
Use the MODE button to select between individual operating modes. 5 modes are available:
1. Automatic cooling or heating operation
2. Cooling predominant operating mode for summer
3. Dehumidifying operating mode for summer or winter
4. Heating predominant operating mode in winter
5. Circulation air circulation only
Automatic Cooling Dehumidifying Heating
MODEMODEMODE
Air circulation
AUTOMATIC MODE
COOLING mode
In automatic mode, the controller autonomously selects between heat­ing and cooling operation when the unit is first switched on. The control range lies between 22 °C and 26 °C. This can be increased or decreased with the ▲/▼ buttons. Fan speed is selected automatically.
MODE
AUTOMATIC
In cooling mode, the air in the room is cooled down to the set target temperature. The desired room temperature is set with the ▲/▼ buttons in 1 °C increments. If the room temperature is 0.5 °C above the selected nominal temperature, then the interior unit starts to cool down the air in the room. If the temperature falls to approx. 1 °C below the set room temperature, the controller will switch off the cooling function. To protect the compressor, the controller will not switch off the cooling again until after a waiting period of 3 minutes.
MODE
COOLING OPERATION
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REMKO ML...DC - ARCTIC
DEHUMIDIFICATION MODE
HEATING Mode
It is recommended that the target temperature be set to 24 ° in dehumidifying mode. Due to the low temperature of the refrigerant, the dew point of the air at the condenser is undercut. The excess moisture in the air is condensed by the vaporiser, the room is dehumidified. The fan speed is permanently set to the lowest setting in order to achieve a maximum level of dehumidification. The compressor switches on and off in intervals between 17°C and 24°C.
MODE
DEHUMIFICATION MODE
In the heating mode, you can heat the room in spring or fall. The selected room temperature is set using the ▲/▼ buttons in 1 °C increments. If the room temperature is 1 °C below the selected target temperature, the indoor unit starts to heat the air in the room. If the set room temperature is exceeded by approx. 1 °C, the controller will switch off the heater function. To protect the compressor, the controller will wait 3 minutes before switching on the heating mode again.
MODE
HEATING OPERATION
FAN SPEED Button
AIR DIRECTION Button
SWING Button
The fan speed can be adjusted with this button. A selection can be made between low, medium, high and automatic fan speed.
Automatic
FAN
Speed
High Medium
FAN
Speed
FAN
Speed
Low
FAN
Speed
The air discharge fins are individually adjusted using this button. Various positions and an oscillating function can be selected.
The oscillating function of the air discharge fins can be adjusted with this button. This makes it possible to switch directly between a preset position and the oscillating function. The air distribution in the room is improved using the swing function.
10
SLEEP Button
A programming function is activated using this button, which increases the target temperature in cooling mode by 1 °C after one hour and by 2 °C after 2 hours. In heating mode, the target temperature is decreased by 1 °C after one hour by 2 °C after 2 hours. The unit switches off automatically after 8 hours.
TIMER Button
TIMER ON Button
TIMER OFF Button
The activation and switch-off time can be programmed with this button. The timer is activated and the time display is switched off by pressing the Timer on or Timer off button. The timer display on the indoor unit illuminates. The desired activation or deactivation time is set by pressing the Timer On or Timer Off buttons. When the programmed time has been reached, the device automatically switches on or off. If the indoor unit is automatically switched on, the mode, temperature and fan speed for the last setting are activated. Deleting the preset on and off time early is carried out by pressing the ON/OFF button. The timer display on the indoor unit goes out.
Timer On
Timer On
3 sec.
“FP” Button
Timer Off
Timer Off
3 sec.
This button activates the „frost protection function“, which sets the nominal temperature in heating mode to 8°C. This function is used to gu­aranteed frost protection in unsupervised rooms. When the FP function is active, the device switches heating mode on and at 8°C switches it off again. This serves to ensure that the frost protection limit is not reached. If „FP“ mode is activated, this is indicated in the display.
Pressing „ON/OFF“,“MODE“, „FAN“, „TEMP ▲ ▼„TIMER ON/OFF“, FP“ will quit the function.
MODE FP
HEATING OPERATION
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REMKO ML...DC - ARCTIC
Manual air distribution
There are individually adjustable fins for adjusting the horizontal air distribution on the air discharge side.
ATTENTION
Moving, internal parts, e.g. fans, have the potential to cause injury during operation! Only make adjustments after swing operation has been switched off.
Manual air distribution
Decommissioning
Temporary Decommissioning
1. Allow the indoor unit to run for 2 to 3 hours in air circulation mode or in cooling mode at the maximum temperature setting in order to remove any residual moisture from the unit.
2. Shut down the unit using the remote control.
3. Switch off the voltage supply to the unit.
4. Cover the unit as far as possible with plastic foil in order to protect it from the influences of weather.
Permanent Shutdown
Ensure that equipment 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 specialist companies near you.
Shift lever left
Care and maintenance
Regular care and maintenance serves to ensure trouble-free operation and long service life of the unit.
ATTENTION
Prior to performing any work, ensure the equipment is disconnected from the voltage supply and secured to prevent accidental switch-on!
Care
Ensure the indoor unit and outdoor component are protected against dirt, mould and other deposits.
Clean the equipment using a damp cloth. Do not use any caustic, abrasive or solvent­based cleaning products. Do not use a jet of water.
Clean the fins on the indoor unit and outdoor component prior to long shutdown periods.
Shift lever right
Maintenance
We recommend concluding a maintenance contract with annual service from an appropriate specialty company.
TIP
This ensures the operational reliability of your system!
NOTE
Statutory regulations require an annual leak test for the refrigerant circuit in relation to the refrigerant filling capacity. Inspection and documentation is to be carried out by special­ty technicians.
12
Cleaning the housing of the indoor unit
1. Disconnect the supply voltage to the equipment.
Type of task
Checks/Maintenance/Inspections
2. Open and fold the air inlet guard on the front side upwards.
3. Clean the guard and cover using a soft, damp cloth.
4. Switch the supply voltage back on.
Air filter for indoor unit
Clean the air filter at intervals of no more than 2 weeks. Reduce this interval in case of heavily soiled air.
Cleaning the filter of the indoor unit
1. Disconnect the supply voltage to the equipment.
2. Open the front side of the device by folding the guard upwards and allowing it to engage (figure 1).
3. Raise the filter and pull it out pulling downwards.
4. Clean the filter with a standard vacuum cleaner. Turn the dirty side upward (figure 2).
5. Dirt can also be removed by carefully cleaning with lukewarm water and mild cleaning agents. Turn the dirty side downwards(figure 3).
General Measure voltage and current Check function of compressor/fans
Check fan function Dirt on condenser/vaporiser Check refrigerant fill quantity
Check condensation drain Test insulation Check moving parts
Sealing test for refrigerant circuit
1) see note
6. If water is used, let the filter dry out before replacing it in the unit.
7. Carefully insert the filter. Make sure it is seated correctly.
8. Close the front side as described above in reverse order.
9. Switch the supply voltage back on.
10.
Switch the unit on again.
Cleaning the condensation pump (accessories)
An optional integrated or separate condensation pump may be included with the indoor unit, which pumps out any accumulated condensation into higher positioned drains. Observe the care and maintenance instructions given in the separate operating instruction manual.
Commissioning
Monthly
Six-monthly
Yearly
1 Fold the guard upwards
2 Cleaning using a vacuum cleaner
3
Cleaning with lukewarm water
1)
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REMKO ML...DC - ARCTIC
Troubleshooting and customer service
The equipment and components are manufactured using state-of-the-art production methods and tested several times to verify their correct function. If malfunctions should occur, please check the functions as detailed in the list below. Please inform your dealer if the unit is still not working correctly after all the functional checks have been performed!
Fault
Fault Possible cause Checks Remedial measures
The unit does not start or switches itself off continually
The unit does not respond to the remote control
Power outage, undervoltage, defective mains fuse / main switch in off position
Damaged mains cable
Wait time after switching on is too short
Working temperature undercut / exceeded
Electrical surges caused by thunder storms
Fault in external condensation pump
Transmission distance too far / receiver affected by interference
Defective remote control
Receiver or transmitter unit exposed to excessive solar radiation
Electromagnetic fields are interfering with transmission
Button on remote control jammed / two buttons pressed at same time
Batteries in remote control are flat
Are all other electrical installations functioning correctly?
Are all other electrical installations functioning correctly?
Have approx. 5 minutes elapsed since the restart?
Are the fans in the indoor unit and outdoor component 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 button?
Is the unit running in manual mode?
Does it function correctly in the shade?
Does it function after removing potential fault sources?
Does the “Send” symbol appear on the display?
Have new batteries been inserted? Is the display incomplete?
Check voltage if necessary wait until turned on again.
Repair by a specialist
Schedule longer waiting periods
Take into account the temperature range for the indoor unit and outdoor component
Switch off the mains protection and switch 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&transmitter unit in the shade
Signal is not transmitted when interference sources are operational
Release the button / press only one button
Insert new batteries
The unit is running with reduced or without cooling or heating output
Condensation is leaking out
14
Filter is unclean / air inlet / outlet blocked by foreign objects
Windows and doors open. Heating/cooling loads increased
Neither cooling nor heating mode has been set up
Fins on outdoor component blocked by foreign objects
Leaking refrigerant circuit
Collection container drainage pipe blocked / damaged
Faulty external condensation pump or float
Condensation has collected in the condensation pipe
Condensation does not drain off
Have the filters been cleaned? Clean the filters
Have there been any constructional / application-related changes?
Is the cooling/heating symbol activated in the display?
Is the fan on the outdoor component running and are the fins unobstructed?
Are there signs of frost on the fins of the indoor unit?
Is unrestricted condensation discharge ensured?
Is the condensation tray full and the pump running?
Has the condensation pipe been laid on a slope and is not blocked?
Are the condensation lines unblocked and laid on a slope? Are the condensation pump and float switch functioning correctly?
Close windows and doors / install additional units
Correct the settings for the unit
Check the fan or winter controller, reduce the air resistance
Repair by specialist
Cleaning of drain pipe and collector reservoir.
Call out a specialist to replace the pump
Lay the condensation pipe on a slope and clean if necessary
Install the condensation pipe on a slope and clean if necessary / is the float switch or the condensation pump defective?
Problem display by blinker code
Display Cause Required action
E0 EEPROM error Contact specialty company
E1
E2 Wiring fault L/N/Pe/S Check wiring, replace IT circuit board
E3 Vaporiser fan speed too low Check wiring, check motor voltage
E5
E6 air circulation sensor / vaporiser faulty / short-circuited Check wiring, contact specialty company
P0 IGBT electrical surge protection
P1 Electrical surge / Undervoltage protection
P2
P4 IPM power board safety shutdown
Communication error between outdoor component and indoor unit
Outdoor temp. sensor / condenser temperature fault / short-circuited
Excessive compressor temperature protection (Klixon) has tripped
Disconnect from mains for 2 min, check wiring
Check wiring, contact specialty company
Check wiring, check compressor wiring contact spe­cialty company
Check voltage on the L/N/S system. Switch off and turn on again
Check refrigerant quantity, wiring, Klixon
Check wiring, switch off and on again, contact specialty company
Installation instructions for qualified personnel
Important notes prior to installation
Transport the unit in its original packaging as close as possible to the installation location. You avoid transport damages by doing so.
Check the contents of the packaging for completeness and check the unit for visible transport damage. Report any damage immediately to your contractual partner and the shipping company.
Lift the unit at the corners and not by the refrigerant or condensation connections.
The refrigerant pipes (injection and suction line), valves and connections must be insulated against vapour diffusion. If necessary, also insulate the condensation pipe.
Select an installation location which allows air to freely flow through the inlet and outlet. (See section "Minimum clearances").
Do not install the unit in the immediate vicinity of devices with intensive thermal radiation. Installation near sources of thermal radiation reduces the output of the unit.
Only open the shut-off valves of the refrigerant lines after the installation is complete.
Seal off open refrigerant lines with suitable caps or adhesive strips to avoid infiltration of moisture and never kink or compress the refrigerant lines.
Avoid unnecessary bends. You thereby minimize loss of pressure in the refrigerant lines and ensure clear return flow of the compressor oil.
Take special precautions with regard to the oil return if the exterior component is located above the indoor unit. See section "Oil return flow measures".
If the basic length of the refrigerant line exceeds 5 metres, add refrigerant. The quantity of additional refrigerant is provided in the chapter "Add refrigerant".
Only use the union nuts for the refrigerant pipes included in the delivery, and remove them only shortly before connecting the refrigerant lines.
Make electrical connections in accordance with the effective DIN and VDE standards.
Always fasten electric cables properly to the electrical terminals. Otherwise a fire could result.
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REMKO ML...DC - ARCTIC
Wall openings
A wall opening of at least 70 mm diameter and 10 mm slope from the inside to the outside must be made for each indoor unit
We recommend that the inside of the opening is padded or lined, e.g. using a PVC pipe, to prevent the lines being damaged.
After installation, the wall opening should be closed off with a suitable sealant. Do not use materials containing cement or lime!
Lines in the wall throughput
Control line
Selection of the installation location
Interior unit
The indoor unit is designed for horizontal wall installation above doors. However, it can also be used on the upper wall area can be used (min. 1.75 m above the surface of the floor).
Outdoor component
The outdoor component is designed for horizontal installation on a base in outdoor areas. It should be placed on level, flat and firm surface. The unit should also be secured against tipping over. The outdoor component can be set up outside as well as inside a building. For external installation, please observe the following notes to protect the unit from weather conditions.
Wind
If the unit is being installed in windy areas, ensure that the warm outlet air discharges in the main wind direction. If this is not the case it may be necessary to install a windbreak (provided by the customer). Ensure that the windbreak does not adversely affect the air supply to the unit.
Windbreak
Wind
PVC tube
Suction line
Condensation line
Injection line
Installation material
The indoor unit is fastened using a wall bracket and 4 threaded screws (provided by the customer).
The outdoor component is attached to the wall with 4 screws and a wall bracket or on a pedestal secured to the ground.
Rain
The unit should be at least 10 cm off the ground when mounted on the roof or ground. A pedestal is available as an accessory.
Sun
The condenser on the outdoor component gives off heat. Exposure to direct sunlight further increases the temperature of the fins and reduces the heat released by the finned heat exchanger. The outdoor component should be installed on to the north side of the building whenever possible. If necessary, take measures to provide sufficient shade (responsibility of customer). This can be accomplished with a small roof. However, the measures taken should not affect the flow of warm outlet air.
Snow
The unit should be wall-mounted in areas of heavy snowfall.
Installation should then be at least 20 cm above the expected level of snow to prevent snow from entering the outdoor component. An optional wall bracket is available as an accessory.
Minimum clearance to snow
Snow
20 cm
16
Installation inside buildings
Ensure that heat can dissipate adequately when placing the outdoor component in cellars, attics, adjoining rooms or halls (figure 4).
Install an additional fan with a rated flow comparative to that of the outdoor component being installed in the room. This is used in conjunction with ventilation ducts to compensate any pressure losses (figure 4)
Ensure a continuous and unobstructed air flow from outside, preferably using sufficiently large air intakes placed opposite each other(figure 4).
4 Installation inside buildings
Warm air
Additional fan
Light well
Warm air
Comply with any regulations and conditions affecting the structure of the building. If necessary, fit acoustic installation.
Outdoor component
Cold Fresh air
Light
well
Minimum clearances
Observe the minimum clearances to allow access for maintenance and repair work and facilitate optimum air distribution.
ML 226 DC AT ML 352 DC AT ML 522 DC AT
A 150 mm
B 700 mm
C 400 mm
D 150 mm
E 200 mm
Mounting points for wall bracket
ML 226-352 DC IT
Minimum clearances
120
120
1700
Air intake
Air outlet
ML 522 DC IT
120
1500
Air intake
D
A
E
Air outlet
B
All values in mm
C
270
40
45
65
790
65
90
270
65
45
70
920
65
70
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REMKO ML...DC - ARCTIC
Installation
Oil return measures
If the outdoor component is installed at a higher level than the indoor unit, suitable oil return measures must be taken. This is normally accomplished by creating a bend in the oil line, installed at every 2.5 metres of rise.
Oil return measures
Outdoor component
Oil pump bend
in suction pipe to
outdoor component
1 x every 5.0
metres of rise in the
line
Radius: min. 50 mm
max. 8/10 m
Indoor unit
Connection variations of indoor unit
Connection variations
NOTE
Installation may only be performed by authorised specialists.
Unit installation
The indoor unit is attached by means of a wall bracket, under consideration of air discharge side located in the lower part.
1. Mark the mounting points on the structurally permissible building sections according to the dimensions of the unit.
2. Remove the housing's break out opening if necessary.
3. Connect the refrigerant lines, electrical cables and condensation line to the indoor unit as described below.
4. Hang the indoor unit onto the wall bracket by tilting it back slightly and then by pressing the bottom part of the unit against the bracket (figure 5).
5. Check that the unit is level.
Connecting the refrigerant lines
The on-site connection of the refrigerant lines is carried out at the rear of the unit.
It may be necessary to fit a reducing or extending adapter to the indoor units. These fittings are included with the indoor unit as an accessory kit. Once installed, the connections should be sealed to prevent vapour diffusion.
ATTENTION
The units are factory filled with dry nitrogen to monitor for leaks. The pressurised nitrogen is released when the union nuts are loosened.
The following instructions describe the installation of the refrigerant circuit and the assembly of the indoor unit and the outdoor component.
1.
The required pipe diameters are
given in the table "Technical data".
1
2
3
1 Outlet on the wall, right 2 Outlet through the wall, right 3 Outlet through the wall, left 4 Outlet on the wall, left
Wall bracket for indoor unit
The wall bracket for the unit must be attached with suitable screws and anchors.
18
2. Remove the factory-fitted protective caps and union nuts on the connections and use
5
Connecting
4
these during installation.
3. Before flanging the refrigerant lines, ensure that the union nut is on the pipe.
4. Prepare the refrigerant lines as shown below (Page 19, figures 6+7).
5. Verify that the shape of the flange is correct(figure 8).
6. First connect and hand-tighten the refrigerant connections to ensure they are correctly seated.
7. Now fully tighten the fittings using 2 suitably sized open­ended spanners. Use one spanner to counter the force when tightening the fitting (figure 9).
8. Use only diffusion-tight insulation hoses designed for this temperature range.
9. Lay the refrigerant lines from the indoor unit to the outdoor component. Ensure that they
are adequately fastened and take measures for the oil return, if necessary!
10.
During installation, observe guidelines on the permitted bending radius for the refrigerant lines and never bend a line twice in the same place. Brittleness and cracking can result.
NOTE
Only use tools and compo­nents designed for refrigera­tion applications.
11.
Use the wall or floor brackets to fasten the outdoor component where structurally allowed (refer to the installation instructions for the brackets).
12.
Ensure that structure-borne sound is not transferred to the building. Use vibration dampers to reduce the effects of structure-borne sound!
13.
Prepare the refrigerant lines for the outdoor component as described above.
Supplementary information for Installation
If the basic length of the refrigerant line exceeds 5 m, add refrigerant when commissioning the system for the first time. (See chapter "Add refrigerant").
6 Deburring the refrigerant line
Refrigerant line
Deburrer
8 Correct flange shape
7 Flanging the refrigerant line
Flanging tool
9 Tighten fittings
Tighten 1st Spanner
Tightening torque:
1
4
3
8
1
Counter 2nd Spanner
2
5
8
3
4
15-20 Nm
33-40 Nm
50-60 Nm
65-75 Nm
95-105 Nm
19
REMKO ML...DC - ARCTIC
Monitoring for leaks
Once all the connections have been established, the pressure gauge station is attached as follows to the Schrader valve (if fitted): red = small valve = injection pressure blue = large valve = suction pressure
Once connected, perform a leak test using dry nitrogen.
The tightness test involves spraying a leak detection spray onto the connections. If bubbles are visible, the connections have not been properly made. Tighten the connection or prepare a new flange.
If the leak test is successful, depressurise the refrigerant lines and start a vacuum pump with an absolute final partial pressure of min. 10 mbar to create a vacuum in the lines. Any moisture present in the pipes will also be removed.
ATTENTION
A vacuum of min. 20 mbar must be created!
The time required to generate the vacuum is dependent on the pipework volume of the indoor unit and the length of the refrigerant lines. The process will always take at least 60 minutes. Once any foreign gases and moisture have been completely extracted from the system, the valves on the pressure gauge station will be closed and the valves on the outdoor component will be opened as described in the chapter on "Commissioning".
Condensate connection
Due to undercutting of the dew point at the vaporiser, condensation forms during coolingand in the condenser duringheating.
Below the vaporiser is a collection tray, which must be connected to a drain. The lower section of the outdoor component's housing is designed to serve as a collection tray. The condensate connection included in the scope of delivery is to be attached here.
The condensation line is to be installed with a minimum slope of 2 %. (figure 10). If necessary, fit vapour diffusion tight insulation.
Lead the condensation line freely to the run-off line. If the condensation runs directly into a sewer pipe, fit a trap to prevent any unpleasant odours.
When operating the unit at outdoor temperatures below +4 °C, make sure to route the condensation to prevent freezing. The lower part of the housing is also to be kept frost free by the user, in order to ensure permanent draining of the condensate. If necessary, fit supplementary pipe heating.
After completed installation, check for unobstructed condensation run off and ensure that a permanent seal is provided.
10
Slope of the condensation line
at least 2% slope
The condensation hose is designed to be installed on the left side (viewed from the front).
Electrical connection
A mains cable must be installed as voltage supply to the Indoor unit and a control cable to the outdoor unit, with appropriate safeguards.
ATTENTION
All electrical installation work is to be performed by specialty companies. Disconnect the voltage supply when connecting the electrical terminals.
We recommend that a mains/ repair switch be installed near the outdoor component.
If an optionally available condensation pump is used on the unit, then an additional relay for the shut-off contact of the pump will be needed to increase the switching power to shut off the compressor.
Control cables should be screened if laid in areas exposed to strong magnetic fields.
Electrical protection is provided in accordance with the technical data.
20
Connecting the indoor unit
Connecting the outdoor component
Make the connection as follows:
1. Open the air intake grill.
2. Loosen the cover to the terminal strip on the right side. (figure 11).
3. Connect the unit to the control cable from the outdoor component. See electrical connection diagram.
4. Re-assemble the unit.
11
Connecting the indoor unit
Proceed as follows to connect the cable:
1. Remove the plastic panel at the connector.
2. Select the cable cross-section according to the relevant standards.
3. Feed both cables through the edge protection rings on the fixed connection panel.
4. Connect the cables as shown on the electrical connection diagram.
5. Anchor the cable in the strain relief and re-assemble the unit. (figure 12).
ATTENTION
Check all plugged and clamped terminals to verify they are seated correctly and make a permanent contact. Tighten as required.
12
Connecting the outdoor component
Control cable and voltage supply to the outdoor unit
Cover
Terminal strip
Electrical connection diagram
Connection ML 262 DC to ML 522 DC
Outdoor component
L1
N
S
Indoor unit Mains cable
L1
Exterior conductor
N
Neutral conductor
S
Data cable
Earth conductor
Indoor unit
230 V~, 50 Hz, L1 / N / PE
21
N
U
V
~
~
~
~
+ +
-
-
Y/G
3
4
7
FILTER
HL1
LH 2
H 1N
H 2N
N
L
U V
CN7
CN28
CN26
CN10
N-B
CN3
CN2
CN14
CN4
N
S
L
CN31
CN33
CN34
U V
W
CN6
6
REMKO ML...DC - ARCTIC
Electrical circuit diagram
ML 262-352 DC AT
S1
C1
S2
ST
V1
C1 = Compressor
S1 = Condenser feeler
S2 = Air-intake sensor S3 = Heated gas sensor
S4 = Compressor sensor (Klixon) V1 = Reverse flow valve F1 = Condenser fan LP = Power board ST = Control board GL = Rectifier
ML 522 DC AT
C1
GL
GL
F1
22
V1
F1
GL
Electrical circuit diagram
S
N
L
Y/G
CN3
S
Y/G
3
4
RY1
CN6
CN5 CN1
N
CN12
CN8 CN11
CN9
CN7
3
2
2
4
L N S
JX1
I ON
2
3
CN4
CN14
CN13
CN10
P_1
3
7
2
2
5
CN2
CN17
ML 262-522 DC IT
to outdoor component
T1
M1
M2
S1
S2
Display
Manual On/Off
M1 = Swing motor M2 = Fan motor
T1 = Transformer S1 = Air circulation sensor
S2 = Vaporiser sensor V1 = Board display F1 = Manual On/Off
23
REMKO ML...DC - ARCTIC
Before Commissioning
After the tightness check has been successfully completed, connect the vacuum pump via the pressure gauge station to the valve connections on the outdoor component (see chapter "Tightness check") and create a vacuum.
Perform the following checks prior to putting the unit into operation for the first time and after any work on the refrigeration circuit. Record the results in the commissioning report:
Check all refrigerant lines and valves using leak detection spray or soapy water for leaks and for inadvertent reversal of the suction and injection lines, with the unit at a standstill.
Check refrigerant lines and insulation for damage.
Check electrical connection between indoor unit and outdoor component for correct polarity.
Check that all fastenings, mountings etc. are firm and at the correct level.
ATTENTION
Make sure that the refrigerant which is used is always filled in liquid form!
NOTE
Check the refrigerant fill quantity in the event of overheating
Add refrigerant
ATTENTION
Wear protective clothing when handling refrigerant.
The equipment contains a basic quantity of refrigerant. Furthermore, for refrigerant line lengths of more than 5 metres per circuit, an additional amount of refrigerant must be added, in accordance with the following chart:
ML
ML
tity
30
g/m
ML
522
30
g/m
Basic line length
Up to and incl. 5 m
5 m to max. 20 m
262
352
Additional fill quan-
0 g/m
30
g/m
Commissioning
NOTE
Commissioning is only to be performed and documented by specially trained personnel.
Once all the components have been connected and tested, the system can be commissioned. A functional check should be performed to verify its correct function and identify any unusual operational behaviour prior to handing it over to the operator.
NOTE
Check that the stop valves and valve caps are tight after carrying out any work on the refrigerant circuit. Use appropriate sealant products as necessary.
Function test and test run
Check the following points:
Leak tightness of refrigerant lines.
Compressor and fan running smoothly.
In cooling mode, cold air output by the indoor unit, and warm air output by the outdoor component.
Functional test of the indoor unit and all program sequences.
Check of the surface temperature of the suction pipe and determination of vaporiser overheating. To measure the temperature, hold the thermometer to the suction pipe and subtract the boiling point temperature reading on the pressure gauge from the measured temperature.
Documentation of the measured temperatures in the commissioning report.
Functional test for the cooling and heating modes
1. Remove the caps from the valves.
2. Begin the commissioning process by briefly opening the shut-off valves of the external unit until the manometer displays a pressure of approx. 2 bar.
3. Use leak detection spray or suitable devices to check that all the connections are leak tight.
24
4. If no leaks are found, open the stop valves by turning them anti-clockwise as far as they will turn using a hexagon spanner. If leaks are found, repair the faulty connection. It is imperative that the vacuum creation and drying steps are repeated!
5. Switch on the mains switch or circuit breaker.
6. Use the remote control to switch on the unit and select the cooling mode, maximum fan speed and lowest target temperature.
7. Measure and record all the required values in the commissioning report and check the safety functions.
8. Check the unit's control element using the functions described in the chapter "Operation".
Timer, temperature setting,
fan speeds and switching to ventilation or dehumidifying mode.
9. Check the correct function of the condensation line by pouring distilled water into the condensation tray. A bottle with a spout is recommended for pouring the water into the condensation tray.
10.
Switch the indoor unit to cooling mode.
11.
Check the correct function and settings of all control and safety devices during the test run.
12.
Check the control system in the indoor unit using the functions described in the operating manual. Timer, temperature settings and all mode settings.
13.
Check the overheating, outdoor, indoor, outlet and vaporisation temperatures and record the measured values in the commissioning report.
14.
Switch the indoor unit to heating mode.
15.
Check all the previously described safety devices and functions during the test run.
16.
Enter the measured data in the commissioning report.
17.
Remove the pressure gauge. Check that seals have been fitted in the sealing caps.
Final tasks
Reassemble all disassembled parts.
Familiarise the operator with the system.
Unit dimensions
ML 262 DC AT to ML 352 DC AT
760
ML 522 DC AT
770
We reserve the right to modify the dimensions and constructional design as part of the ongoing technical development process.
268
270
590
590
295
530
530
ML 262 DC IT / ML 352 DC IT
790
ML 522 DC IT
290
940
275
190
275
200
All values in mm
25
REMKO ML...DC - ARCTIC
Exploded view ML 262 DC IT to ML 522 DC IT
11
7
10
9
1
6
4
8
5
12
Spare parts list
No. Designation ML 262 DC IT ML 352 DC IT ML 522 DC IT
From Serial number
1 Complete front panel
2 Air filter, set
3 Board, display
4 Swing motor
5 Air outlet fins, set
6 Condensation tray
7 Vaporiser
8 Fan wheel
9 Fan motor
10 Control board
11 Transformer
12 IR remote control
Spare parts (not illustrated)
Air circulation sensor
Vaporiser sensor
When ordering spare parts, please state the computerised part no., device unit number and type of device (see identification plate)!
2
3
We reserve the right to modify the dimensions and constructional
design as part of the ongoing technical development process.
802W6001... 808W6001... 809W6001...
1111150 1111150 1111151
1111152 1111152 1111153
1111180 1111182 1111183
1111156 1111156 1111156
1111157 1111157 1111158
1111159 1111159 1111160
1111161 1111162 1111163
1111164 1111164 1111165
1111166 1111166 1111167
1111181 1111181 1111181
1111171 1111171 1111172
1111180 1111180 1111180
1111216 1111174 1111174
1111179 1111175 1111175
26
Exploded view ML 262 DC AT to ML 522 DC AT
13
11
4
Spare parts list
12
6
5
2
3
9
8
1
10
7
No. Designation ML 262 DC AT ML 352 DC AT ML 522 DC AT
From Serial number
1 Front panel
2 Fan blade, condenser
3 Fan motor, condenser
4 Condenser
5 Cover panel
6 Side panel
7 Compressor, cpl.
8 Stop valve, suction line
9 Stop valve, injection line
10 Reverse flow valve 1111208 1111248 1111249
11 Control board
12 Condenser, compressor
13 IPM inverter power drive
Spare parts (not illustrated)
E-Box, complete
Temperature sensors, set
Electrical heater cable
802W9001... 808W9001... 809W9001...
1111190 1111230 1111231
1111193 1111232 1111233
1111195 1111234 1111235
1111197 1111236 1111237
1111200 1111238 1111239
1111203 1111240 1111241
1111204 1111242 1111243
1111206 1111244 1111245
1111207 1111246 1111247
1111210 1111250 1111251
1111213 1111252 1111253
1111214 - -
1111216 1111254 1111218
1111219 1111255 1111219
1111256 1111256 1111256
When ordering spare parts, please state the computerised part no., device number and type of device (see identification plate)!
27
REMKO ML...DC - ARCTIC
35 37 3 9 4325 29 31 33
2. 56
2. 50
2. 38
2. 44
2. 62
2. 68
2. 74
2. 32
41 27
0. 81
0. 82
0. 83
0. 84
0. 78
0. 80
3, 2
3, 0
2. 6
2, 8
3, 4
3, 6
3, 8
2. 4
3 5 7 9 11 -7 -5 -3 -1
1
0. 78
0. 80
0. 82
0, 84
0. 72
0. 74
0. 76
4, 0
3. 4
3. 3
3. 1
3. 2
3. 5
3. 6
3. 7
3. 0
35 37 39 41 43 25 27 29 31 33
1, 07
1, 12
1, 17
1, 22
0, 92
0, 97
1, 02
4, 2
4, 0
3. 6
3, 8
4, 4
4, 6
4, 8
3. 4
3 5 7 9 1 1 -7 -5 -3 -1
1
1. 15
1. 20
1. 25
1. 30
1. 00
1. 05
1. 10
Performance data ML 262 DC
Cooling Heating
Nominal cooling outputElec. power consumption
Nominal heat output
Elec. power consumption
Outdoor temperature
Performance data ML 352 DC
Cooling Heating
Outdoor temperature
28
Nominal cooling output
Elec. power consumption
Elec. power consumption Nominal heat output
Outdoor temperature Outdoor temperature
Performance data ML 522 DC
5. 0
4. 9
4. 7
4. 8
5. 1
5. 2
5. 3
4. 6
35 37 39 41 43 25 27 29 31 33
1. 60
1. 64
1. 68
1. 72
1. 48
1. 52
1. 56
5, 80
5. 70
5. 50
5. 60
5. 90
6. 00
6. 10
5. 40
3 5 7 9 11 -7 - 5 -3 - 1
1
1. 40
1. 50
1. 60
1. 70
1. 10
1. 20
1. 30
Cooling Heating
Nominal cooling output
Elec. power consumption
Elec. power consumption Nominal heat output
Outdoor temperature Outdoor temperature
29
REMKO ML...DC - ARCTIC
Technical data
Series
ML 262 DC ML 352 DC ML 522 DC
Operational mode Wall / room air conditioner combination for cooling and heating
Nominal cooling output Nominal heating output
1)
2)
Energy efficiency class, cooling Energy efficiency ratio EER
1)
Energy efficiency class, heating Coefficient of performance COP
1)
2)
2)
kW 2,68 (0,67-3,52) 3,52 (0,72-3,96) 5,24 (1,49-6,45) kW 3,15 (0,70-3,75) 4,29 (0,82-4,69) 5,94 (1,55-6,74)
A A A
3,31 3,29 3,23
A A A
3,71 3,67 3,61 Power consumption, annual, (500h) K / H 405 / 400 535 / 580 510 / 960 Operating range (room volume), approx. 80 110 160 Refrigerant R 410A
4)
Power supply V/Hz 230 / 1~ / 50
1)
Nom. electrical power consumption, cooling Nom. electrical power consumption, heating Elec. nominal power consumption cooling
kW 0,81 ( 0,19-1,18) 1,07 (0,21-1,38) 1,62 (0,38-2,32)
2)
kW 0,81 (0,19-1,10) 1,17 (0,21-1,18) 1,64 (0,35-2,05)
1)
A 3,70 (0,9-5,2) 4,40 (1,0-6,2) 7,09 (1,8-10,2) Elec. nominal power consumption heating 2)A 3,60 (0,9-5,0) 4,5 (1,0-6,6) 7,25 (1,6-9,2) Elec. starting current, max. A 8 10 10
Refrigerant connection - injection line
Coolant connection - suction line
Inches
(mm)
Inches
(mm)
1/4 (6,35) 1/4 (6,35) 1/4 (6,35)
3/8 (9,52) 3/8 (9,52) 1/2 (12,70)
Max. operating pressure kPa 4200 / 4200
Corresponding indoor unit
ML 262 DC IT ML 352 DC IT ML 522 DC IT
Serial number 802W6000 -... 808W6000 -... 809W6000 -... Adjustment range, room temperature °C +17 to +30 Operating range °C +16 to +31 Air flow volume per speed setting m³/h 500/420/350 550/450/370 800/700/600 Sound pressure level per speed setting
3)
dB(A) 29/34/39 31/37/40 37/39/42 Protection class IP X0 Condensate connection mm 14 14 14 Dimensions - Height mm 275 275 275
Width mm 790 790 940 Depth mm 190 190 200
Weight kg 8,5 8,5 11,0
Corresponding outdoor component
ML 262 DC AT ML 352 DC AT ML 522 DC AT
Operating range - cooling °C +5 to +50 Operating range - heating °C -7 to +25 Air flow rate, max. m³/h 1700 1850 1500/2200 Protection class IP 24 Sound pressure level, max.
3)
dB(A) 50 51 54 Refrigerant, basic quantity kg 0,83 0,94 1,10 Refrigerant, additional quantity > 5 m g/m 30 30 30 Refrigerant line, max. length m 20 20 25 Refrigerant line, max. height m 8 8 10 Dimensions - Height mm 590 540 590
Width mm 760 730 760
Depth mm 270 270 270 Weight kg 38,0 39,0 39,5 Serial number 802W9000-... 808W9000-... 809W9000-... EDP no. 1632265 1632355 1632525
1) Air inlet temperature TK 27°C / FK 19°C, outdoor temperature TK 35 °C, FK 24 °C, max. air flow volume, 5m line length
2) Air inlet temperature TK 20°C, outdoor temperature TK 7°C, FK 6°C, max. air flow volume, 5m line length
3) Distance 1 m free field
4) Contains greenhouse gas according to Kyoto protocol
30
EC – Declaration of Conformity
in accordance with the Machinery Directive, Annex II 1A
Original Declaration of Conformity
We hereby declate that the devices described in the following section conform to the require­ments of the specified applicable EC directives due to their design and type in the version as marketed by us.
Name of Manufacturer: REMKO GmbH & Co. KG Klima- und Wärmetechnik Im Seelenkamp 12 D - 32791 Lage
Name of Authorised Agent: REMKO GmbH & Co. KG Klima- und Wärmetechnik Im Seelenkamp 12 D - 32791 Lage
Equipment (machinery) - Implementation: Inverter wall mounted units in split design and frost protection function
Series / Model:
Series / Class Number: 802..., 808..., 809
Applicable regulations: MA DIR. 2006/42/EC Machinery Directive LV DIR. 2006/95/EC Low-Voltage Directive EMC DIR. 2004/108 EEC Electromagnetic Compatibility Directive EnCLB DIR. 92/75/EEC Energy Consumption Labelling Directive EC 97/23/EC Pressure Equipment Directive
Applicable Standards: DIN EN ISO 12100-1-2 :2004-04; DIN EN ISO 13857, EN 14511 T1-4; DIN 45635 - 1; EN 378 – 1-4; EN 55014 - 1; EN 55014 - 2; EN 55104 EN 60204 - 1; EN 60335 - 1; EN 60335 - 2 - 40; EN 61000 - 3 - 2; EN 61000 - 3 - 3;
REMKO ML 262DC, ML 352DC, ML 522DC
Lage, 22nd January 2010 REMKO GmbH & Co. KG
..............................................
Signature, Product Manager
31
REMKO INTERNATIONAL
… and also right in your neighbourhood! Make use of our experience and advice
REMKO GmbH & Co. KG Air conditioning and heating technology
Im Seelenkamp 12 D-32791 Lage Postfach 1827 D-32777 Lage Telephone +49 5232 606-0 Telefax +49 5232 6 06-260 E-mail info@remko.de Website www.remko.de
Hotline
+49 5232 606-0
Export
+49 5232 606-130
Consultation
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 highly
qualified 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.
Customer service
Our equipment operates
precisely and reliably. However,
in the event of a fault, REMKO
customer service is quickly on
the scene. Our comprehensive
network of experienced dealers
always guarantees quick and
reliable service.
Subject to technical modifications, no liability assumed!
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