REMKO RKV 13 C User manual

REMKO – powerful like a bear.
REMKO RKV 13 C / 18 C / 24 C
Ceiling Cassettes
Edition GB – P05
Operation
Technology
Spare Parts

3
Always keep these operating instructions near or on the unit! GG
Contents Page
Safety Hints 4
Description of Device 4
Transport and Packaging 4
Operation 5
Maintenance and Service 12
Shutting Down the Unit 13
Customer Service and Guarantee 13
Environment and Recycling 13
Technical Data 14
Dimensions 14
Contents Page
Troubleshooting 15
Assembly Instructions for Service Personnel 16
Installation 17
Condensation Connection 19
Electrical Connection 19
Two-Room and Fresh Air Connection 21
Prior to Initial Operation 22
Initial Operation 22
Certification for Initial Operation 23
Read these instructions carefully before setting up/operating the unit!
Our guarantee becomes null and void if the unit is used, set up
or maintained improperly, or if modifications are made to the
supplied unit without our prior consent.
Subject to alterations!
Indoor units for room air-conditioning systems
Ceiling cassettes REMKO RKV 13 C / 18 C / 24 C
Operating Instructions

4
Safety Hints
Extensive tests have been conducted on the material,
functionality and quality of these units before they were
shipped.
These units may only be used in accordance with their
intended purpose. Hazards may arise if the units are
used improperly.
Please make sure to follow these safety instructions:
àThe indoor unit is not suitable for outside operation.
àMake sure that personnel trained in the operation of
the air conditioner checks the unit for visible defects
on the operating and safety mechanisms each time
before putting it into operation!
àBefore performing any work on the unit, the power
cord must be unplugged and the unit secured
against being switched on by unauthorised persons.
àOperate the unit only when assembled and for its in-
tended purpose.
àKeep in mind that it is not permitted to remove cov-
ers protective grilles, etc., during operation; this can
lead to uncontrolled operating situations.
àOperate the unit exclusively within the permissible
operating ranges (surrounding temperatures).
àMake sure that the unit is kept at a safe distance
from flammable objects.
àDo not install the air-conditioning unit close to heat-
ers.
àEnsure that the air intake and outlet openings are not
blocked and always clear of foreign objects.
àThe unit may only be connected to a correctly in-
stalled and grounded power supply.
àNever operate or use the unit in rooms susceptible to
explosions.
àThe unit is also not suitable for operation in rooms
containing large amounts of dust or aggressive air.
àDo not use flammable sprays such as hair spray or
spray paint in the direct vicinity of the unit.
àDo not operate the unit if the atmosphere is contami-
nated by oil, sulfur or salt.
àDo not expose the unit to a direct stream of water.
àProtect the indoor unit and the remote control from
moisture.
àProtect all electric cables and connection lines from
being damaged, for example, by animals.
àProtect the air-conditioning unit and the remote con-
trol from direct and indirect sunlight.
àNever open the unit housing! This may cause an
electric shock.
àRegularly check that condensation is not blocked
from flowing out of the unit.
Description of Device
The way the air conditioning system works is quite sim-
ple: warmth is removed from the room to be cooled.
The environmentally-friendly refrigerant R 407C trans-
ports this warmth just as it does for all other REMKO
air-conditioning products.
The unit’s primary function is to air-condition rooms.
It also filters and dehumidifies the air, thus creating a
comfortable climate in the room.
The unit also has a pure ventilation and dehumidifica-
tion mode.
The unit operates fully-automatically and offers a range
of other options thanks to its microprocessor control.
It is operated using the supplied infrared remote control.
Transport
and Packaging
The unit is shipped in a stable transport box made of
cardboard. Please examine the unit when it is delivered.
Make a note of any damage or missing parts on the
shipping bill and notify the shipping company and your
contract partner.
We do not assume any liability for subsequent com-
plaints.
àNever operate the unit without an air filter.
àOptimum unit function is only guaranteed at indoor
temperatures of between 17 and 32 °C.
àThe unit is equipped with a safety mechanism which
prevents the condenser from being damaged caused
by the unit switching back on right away after it has
been switched off. It is only possible to restart after 3
minutes.
àCleaning and minor maintenance work made only be
performed by the operator or an authorised person
designated by him in accordance with the instruc-
tions contained in the section "Maintenance and
Service.
àDo not expose the remote control to strong vibra-
tions.

5
General information
àThe unit is programmed using an infrared remote
control. It can also be used to switch the unit on and
off.
àThe remote control must be protected from moisture.
àWhen the unit is switched on, each change to the
settings is transferred to the indoor unit. A beep indi-
cates that the data has been correctly received.
àThe remote control transmitter must be pointed in
the direction of the air-conditioner for changes to the
settings.
àIt is only possible for data to be properly received if
there are no objects, for example, doors, curtains,
drapes, etc. between the transmitter and receiver.
The following appears on the display:
àDirect sunlight on the remote control or receiver can
affect signal transmission and thus have a negative
effect on operation.
àThe user knows that the batteries are dead when the
display is not working properly or the battery status
indicates this on the display.
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Never use new and used batteries together! We
recommend removing the batteries if the unit is
taken out of operation for a longer period of time.
The receiver on the indoor unit
The receiver is located in one side of the air outlet grille.
It consists of the infrared sensor, the three display lights
and the emergency button.
Make sure that the polarity is correct when inserting the
batteries. Use the labelling in the slot. Close the battery
slot again. Once the reset button (20) (see page 12) is
pressed, the remote control is ready for operation.
G
Remove dead batteries immediately and replace
them with new ones that have the required quality
because otherwise there is a danger of leakage.
For normal operation, batteries last about a year,
the equivalent of one cooling season.
àWhen transmitting data, the distance between the
transmitter and receiver may not exceed 5 m.
àThe air-conditioner can only process signals that oc-
cur within an angle of 120° on the surface of the in-
frared sensor.
Green light Red light Yellow light
Infrared sensor for remote control signals
Red light (malfunction signal)
It lights up when one of the device’s protection mecha-
nism is activated. After a certain period of time, the de-
vice resumes normal operation.
Type of protection Protection mechanism
Frost protection Compressor and external fan
are shut off.
Condensation tray full The unit stays off as long as
the tray is full.
Operation
Inserting the batteries
Prior to initial operation, the batteries supplied with the
unit (2 type AAA batteries) must be inserted into the re-
mote control.
To do this, slide off the cover of the battery slot on the
back of the remote control by pressing the catch of the
cover in the direction of the arrow.
Indoor unit
Max.5m
Remote control with transmitter
BEEP

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The remote control
1 = Signal transmission display
2 = Operating mode display
3 = Temperature display
4 = Fan operation display
5 = Clock / timer display
6 = Operating mode selection button
7 = On / Off button
8 = Lower temperature button
Clock or Shorten timer program button
9 = Raise temperature button
Clock or Lengthen timer program button
10 = Fan speed selection button
11 = Customisation entry button
12 = Customisation activation button
13 = Air distribution button
14 = Timer ON button
15 = Timer DAILY button
16 = Timer DELETE button
17 = Timer night operation button
18 = Timer OFF button
19 = Clock setting button
20 = Reset button
Yellow light (timer signal)
It lights up if the timer is activated.
It blinks after a power outage, e.g. after the power sup-
ply has been interrupted or if the unit was restarted right
after being switched off in timer mode.
Alarm code (in 5 second intervals Description of problem
Blinks 2 times
The float regulator of the conden-
sation tray has been switched off
for longer than approx. 4 min.
Blinks 3 times
The temperature sensor of the fan
is defective or outside of its regu-
lation range.
Blinks 4 times The frost protection mechanism
has been activated.
Blinks 10 times EEPROM defective
Green light (ON / OFF signal)
It lights up when the unit is in operation.
It blinks in five second intervals when there is a unit
malfunction.
The blink intervals are an alarm code. Unit operation is
blocked and can only be resumed once the problem has
been fixed and the unit unplugged from the power sup-
ply for a moment.
“Manual emergency operation” sensor
This sensor can be used when the remote control has
been lost or is not working.
After the grating has been opened, a metal protection
plate with the activation opening for the indented sensor
becomes visible.
When the indented sensor is pressed with a suitable
tool for 5 seconds when the unit is shut off, the unit runs
in “manual emergency operation”.
The air-conditioning unit switches on and keeps the
room temperature constant at +22 °C. The fan speed
and air distribution are automatically set. The timer
mode is not activated.
If the infrared sensor receives a signal from the remote
control, the unit operates in accordance with this signal.
= Sensor
20
18
19
15
6
4
5
7
8
11
17
10
13
16
14
12
9
1
2
3
A
AM
PM
A
B
1
2F

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Multifunctional display
The display is divided into 4 areas.
The operating mode is displayed in the upper area.
Operating mode display:
Dehumidification
Cooling (+ dehumidification)
Not assigned
Not assigned
Ventilation (only ventilation mode)
In the 3 lower areas, the following is displayed:
1. Selected temperature 2. Fan operation
3. Clock / Timer functions
Important information about switching off the unit.
àUnder certain circumstances, the fan continues to
run for approx. 30 seconds after the unit has been
switched off. In this case, the red light on the unit is
illuminated.
àAfter the unit has been switched off, the condensa-
tion pump continues to run for approx. 7 minutes.
Checking signal transmission
Point the remote control at the receiver of the indoor
unit. Press the ON/OFF button once. The air-
conditioning unit now indicates proper reception by
beeping. At same time, the green light on the receiver
lights up.
Fan operation display
Customisation active?
Fan speed
Plate fin setting
Temperature display
Temperature
measurement unit
Selected temperature
Unit configuration
Unit address
Battery status
Clock / timer functions display
Daily program
Programmed shut-down
Programmed start-up
Time of day or programmed
on/off time
Night program
Switching the unit off - Button (7)
The air-conditioning unit is switched off with the button
(7) . To do this, the current settings must be illumi-
nated on the remote control display. If only the clock
can be seen, the button (7) must be pressed first. If
the unit does not switch off, this process must be re-
peated.
Switching the unit on - Button (7)
If the air-conditioning unit is to be switched on, only the
clock may be visible on the remote control display. If
other symbols are displayed, first press the button (7)
and then only the clock is visible.
To switch the unit on, press the button (7) and the
green light on the indoor unit lights up. The functions
stored in the remote control are displayed. The unit is
operated according to these functions.
The condensation pump switches after a brief delay and
is in continuous operation during cooling mode.
A beep indicates that signals are being transmitted from
the remote control to the unit. If, when the unit is
switched on, there is no acoustic signal and the green
light does not light up, this process must be repeated
(switch off the remote control / switch on the unit).
The following section describes how to adjust the re-
mote control and the indoor unit to the operator’s needs.
Setting the clock - Button 19
To use the Timer program, you must set the clock on
the remote control beforehand.
To do this, the button (19) must be pressed and held
down once for at least 5 seconds. The hours blink and
can be adjusted with the buttons and . The min-
utes are set the same way after the button (19) has
been pressed.
The clock is activated by pressing the button (19) again.
Important information about switching on the unit.
àThe compressor starts approximately 3 min. after a
safety period has elapsed to prevent damage.
àTo protect the compressor from further damage, it
always runs for at least 3 minutes before it switches
off.
àThe air-conditioning unit only beeps when the signal
has been properly transmitted.

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Optimum cooling mode
In “Cooling” mode, the air in the room is suctioned in by
the air-conditioning unit, filtered and then returned in a
cooled state back to the room. The warmth removed
from the room is guided to the outdoor part and expelled
to the surrounding air.
To keep the periods of operation of the outdoor part as
short as possible, the temperature setting of the room to
be cooled should only be kept as low as necessary.
Very low room temperatures mean longer periods of op-
eration and increase the amount of electricity used.
Temperature differences of 6 degrees or more below
the surrounding temperature of the room can give peo-
ple colds.
Optimum dehumidification mode
In “Dehumidification” mode, the air in the room is suc-
tioned in by the air-conditioning unit at periodic intervals,
filtered and returned to the room in a slightly cooled
state.
In this operating mode, the air is more dehumidified
than in normal cooling mode. The warmth removed
from the room is guided to the outdoor part and ex-
pelled to the surrounding air.
The ventilation capacity cannot be changed in this oper-
ating mode (constant preset fan speed).
Additional instructions for all operating modes
àThe indoor unit works most effectively with a clean
filter. The filter should be checked and, if necessary,
cleaned, 2 times a month.
àThe outdoor part must be checked for dirt and, if ap-
plicable, plants. Here as well, a decrease in the
quantity of air causes the cooling capacity to be low-
ered and hence to an increase in electricity con-
sumption.
Operating mode button (6)
There are 3 operating modes available for using the
ceiling cassettes. The operating mode button can be
used to program the following functions:
– Ventilation (+ filtering)
– Heating (no function)
– Automatic (no function)
– Cooling (+ dehumidification)
– Dehumidification
The (6) button is pressed as many times as necessary
until the desired symbol appears on the display.
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“Cooling” mode
In this operating mode, the room in the air is cooled and
slightly dehumidified. The following section
“Temperature selection buttons” describes how to set
the desired room temperature.
“Ventilation” mode
In this operating mode, the air in the room is not cooled.
The purpose of this function is to filter the air and/or cre-
ate a comfortable circulation of air. In the winter, warmth
that accumulates below the ceiling can be circulated.
“Dehumidification” mode
In this operating mode, the air in the room is dehumidi-
fied and slightly cooled. It is not possible to set the room
temperature in this mode.
Temperature selection buttons (8) (9)
The desired room temperature is set using the (8)
and (9) buttons.
The indoor unit confirms that the signal has been re-
ceived by beeping. The new temperature is displayed
on the remote control.
A temperature between 17 °C and 32 °C can be set in
1 °C increments.
If the room temperature is lower than the set tempera-
ture, the unit does not start.
If the room temperature is higher than the set tempera-
ture, a safety period of approximately 3 min. elapses be-
fore the unit starts. Only then does it begin.
If the unit has cooled the air in the room to the set value,
cooling mode switches off. The condensation pump
switches off after running for approx. 7 minutes.
Fan speed selection button (10)
By pressing the button (10), the fan speed and the air
quantity of the fan dependent on it can be selected. The
currently selected speed is shown on the display.
Optimum ventilation mode
The pure ventilation mode circulates the “standing” air in
the room.
It is often not necessary to lower the temperature. If this
is the case, the effect is similar to a ceiling fan. On cool
days, warmth that accumulates on the ceiling can be
transported downwards in this operating mode.
In ventilation mode, the air in the room is also filtered,
as already mentioned.
The following fan speeds are available:
Low (especially quiet)
Medium
High (greatest cooling effect)
Automatic mode (the fan speed
is adjusted to the respective
need for cold air)

9
Position of the air outlet plate fins
The plate fins can be positioned in accordance with the
following illustrations.
The illustration below shows the plate fins when they
are closed.
Closed plate fins
When the plate fins are completely open, the stream of
air is blown in a downwards direction.
This setting is unfavourable for cooling mode because it
creates drafts. In winter, this plate fin position can be
used to regain warm air on the ceiling of the room.
Stream of air going downwards
In cooling mode, the plate fins should be in a “half open”
position (see figure below) or the oscillating mode
should be selected.
Stream of air to the ceiling
The air distribution can be changed by pressing the but-
ton (13) .
The line on the display indicates the position of the plate
fins.
If the distribution is to be set to oscillating, the corre-
sponding symbol must be visible on the display after
pressing the button (13) several times.
The air outlet plate fins are automatically
set depending on the operating mode.
There are six different positions that the air
outlet plate fins can be set to.
The air outlet plate fins are set for oscillat-
ing air distribution.
Symbols on the display
The positions and settings of the air outlet plate fins are
represented by the following symbols.
Air distribution button (13)
The ceiling cassette has 4 air outlet openings to distrib-
ute the cooled air in the room.
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Customisation button (11) and (12)
Proceed as follows if you want to save a personal oper-
ating mode that can be called up at any time:
1. When the remote control is switched on or off, press
the button (11) and hold it down for 5 seconds.
The customisation symbol begins to blink on the
display.
2. Press the button (6) and select the operating mode
you want.
3. Select the desired temperature by pressing the button
(8) or (9) .
4. Select the fan speed with the button (10) .
5. Select the mode for the air direction plate fins with the
button (13) .
6. To save, press the button (11) after you have en-
tered all options .
7. Exit customisation mode after completing entry by
pressing one of the buttons again.
8. If you want to change one or more of the saved pa-
rameters, begin again with Step 1.
9. Activate all selected and saved functions by pressing
the button (12) regardless of which operating mode
the unit is in.
Air outlet plate fins
Air outlet plate fins

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àIf the timer function is activated, the unit checks the
room temperature one hour before the programmed
start-up time. Based on the start-up time, the unit
can start between 0 and 40 minutes ahead of time
depending on the temperature difference between
the room temperature and the selected temperature.
Timer off button (18)
To program the timer shut-down time, press the button
(18) . The corresponding display symbol and the time
begin to blink on the display. This function can also be
selected when the remote control is switched off.
Use the buttons (8) and (9) to set the time at which
the unit should switch off. Press the button (18) to
switch from hours to minutes and, to confirm the setting,
press the button (18) again.
Combined timer program
The timer on/off program can be combined with the
Timer daily function.
1. To do this, activate the programs as already de-
scribed.
The corresponding symbols appear on the display.
Timer on button (14)
A timed program can be set and activated for unit op-
eration with the (14) button. The “Timer in Function”
mode is indicated when the yellow light on the reception
display of the ceiling cassette lights up.
Timer daily button (15)
The saved program to switch the unit on or off is re-
peated on a daily basis with the Timer daily button.
1. Press the button (15) while a timer on/off program
is activated.
The corresponding symbol appears on the display.
Timer delete button (16)
The timer settings are deleted as follows:
1. To delete a start-up program, press the button (14)
and then the button (16) .
The corresponding symbol disappears from the dis-
play.
2. To delete a shut-down program, press first he button
(18) and then the button (16) .
The corresponding symbol disappears from the dis-
play.
3. Remember: if the unit is already switched on, it is
only possible to program another start-up time.
The current settings of the unit are transferred for
this start-up time.
M
4. When the unit is switched off, set the time for the
unit to switch on using the temperature selection but-
tons (8) and (9) .
5. First select the hours and once you have confirmed
the entry by pressing the button (14) , enter the
minutes also with the button (8) or (9) .
To complete entry of the timer program, press the
button (14) again.
6. Select the operating mode of the unit with the button
(6) .
The operating mode symbols blink.
7. Confirm the operating mode you want by pressing
the button (14) .
The symbol for this operating mode no longer blinks.
8. To select the temperature you want, confirm either
by pressing the buttons (8) or (9) and confirm
your selection with the button (14) .
The temperature display no longer blinks after confir-
mation.
9. Select the fan speed with the button (10) and con-
firm your entry with the button (14) .
The symbol no longer blinks.
10.Select the last position of the air direction plate fins
with the button (13) and confirm your selection
with the button (14) .
The symbols of the air direction plate fins no longer
blink after confirmation.
11.Press the button (16) if you want to delete the pre-
viously saved settings or press the button (14) and
then the button (16) if you want to delete all timer
settings.
2. Press the button (15) again to deactivate the
Timer daily function.
The corresponding symbol disappears from the dis-
play.
Proceed as follows to set the timer program:
1. Press the (14) button.
Also possible when the remote control is switched
off.
2. Remember: the corresponding symbol and the time
specification begin to blink on the display. If a button
is not pressed within ten seconds, the timer function
is automatically deactivated.

11
Night shut-down button (17)
The night shut-down function is a convenient function
that lets the room temperature rise gradually which has
health benefits. One hour after this function has been
activated, the selected temperature is increased by 1 °C
per hour. The fan of the indoor unit runs at low speed to
keep the noise level to a minimum.
1. Set the period of operation of the night shut-down
function by pressing the buttons (8) and (9) .
Depending on the selection, the displays shows:
1:hr, 2:hr, 3:hr, 4:hr, 5:hr, 6:hr, 7:hr or 9:hr .
2. Press the button (17) again to confirm your selec-
tion.
After the set time has elapsed, the unit switches off.
3. Press the (17) button to deactivate the night shut-
down function. G
If no button is pressed for 30 seconds, the configu-
ration menu is automatically exited and program-
ming must be started from the beginning.
Configuring the remote control for cooling mode:
1. Insert the batteries into the remote control but do not
switch it on yet.
2. Connect the unit to the power supply and switch the
power on.
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System configuration
These units are configured at the production site as
heat pumps. This preinstalled configuration must be
changed when the units are installed in a cooling sys-
tem. This change is made as follows:
Configuring the device as a cooling unit:
1. Check all electrical connections.
Follow the instructions and wiring diagrams.
2. Insert the batteries into the remote control but do not
switch it on yet.
3. Connect the unit to the power supply and switch the
power on.
4. Press down the buttons (6) and (13) on the re-
mote control for 5 seconds.
The display is deleted. The time display shows the
first configuration entry “rAdr“, the temperature dis-
play shows the preset value of this configuration en-
try “Ab“ (regulation of both indoor units).
5. Press the button (6) repeatedly until “UCFG“ ap-
pears on the display.
6. Press either the button (8) or (9) to change the
preset from heating pump “HP“ to air-conditioning
unit “AC”.
7. Press the button (13) to transfer the new configu-
ration to the unit and then press the button (7) to
exit the configuration menu.
You can find further options for configuring the unit in
Table I.
Time
display
Temperature
display Description
“rAdr“
“A“ Address indoor unit A
“b“ Address indoor unit B
“Ab“ Address for both indoor units
Preinstalled setting
“UCFG“ “HP“ Setting as heat pump
Preinstalled setting without function
“AC“ Setting as an air-conditioning unit
“A St“
“OF“ Unit shut-down after power supply
interruption
“On“ Automatic restart after power supply
interruption
Table I: Unit configuration
Temperature
display
Time
display Description
“CH“
“A“ Address indoor unit A
“b“ Address indoor unit B
“Ab“ Address for both indoor units
“tU“
“C“ Temperature unit degrees Celsius
Preinstalled setting
“F“ Temperature unit degrees Fahren-
heit
”rc“ “HP“ Setting as heat pump
Preinstalled setting without function
“AC“ Setting as an air-conditioning unit
“CR“
“17-32“ Temperature range cooling in °C
min. and max.
“63-90“ Temperature range cooling in °F
min. and max.
“CL“ “12:12“ Time format 12 hour clock (AM/PM)
Preinstalled setting
“24:24“ Time format 24 hour clock
Table II: Remote control configuration
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3. Press down the buttons (6) and (13) on the re-
mote control for 5 seconds.
The display is deleted. The temperature display
shows the present value of this configuration entry
“CH”, The time display shows the present value of
this configuration entry “Ab” (regulation of both in-
door units).
4. Press the (6) button repeatedly until (rc) appears
on the display.
5. Press either the button (8) or (9) to change the
preset from heat pump “HP“ to air-conditioning unit
“AC“.
6. Press the button (13) to transfer the new configu-
ration to the unit and then press the button (7) to
exit the configuration menu.
You can find further options for configuring the unit in
Table II.

12
Reset button (20)
If the batteries were replaced (page 5) or if the remote
control is not working properly, the indented button (20)
must be pressed once with a pointed object (pencil, etc.).
All remote control settings are deleted and must be re-
programmed.
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Address selection display
If there are two indoor units installed in a room and if
they are to be operated independently of one another,
each unit must have its own address assigned so that it
can be operated with the correct remote control. This is
programmed as follows:
Address configuration of the unit
1. Press down the buttons (6) and (13) of the re-
mote control for five seconds.
The display is deleted. The time display shows the
first configuration entry “rAdr“, the temperature dis-
play shows the preset value of this configuration en-
try “Ab“ (regulation of both indoor units).
2. Press either the button (8) or (9) to change the
preset from “Ab“ to the new selection “A“ or “b“.
3. Press the button (13) to transfer the new configu-
ration to the unit and then press the button (7) to
exit the configuration menu.
Address configuration of the remote control
1. Press down the buttons (6) and (13) of the re-
mote control for 5 seconds.
The display is deleted. The temperature display
shows the first configuration entry “CH“, the time dis-
play shows the preset value of this configuration en-
try “Ab“ (regulation of both indoor units).
2. Press either the button (8) or (9) to change the
preset from “Ab“ to the new selection “A“ or “b“.
3. Press the button (13) to transfer the new configu-
ration to the unit and then press the (7) button to
quit the configuration menu.
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If no button is pressed for 30 seconds, the configu-
ration menu is automatically exited and program-
ming must be started from the beginning.
àKeep the unit free of dirt, plants and other deposits.
àOnly clean the unit with a damp cloth.
àDo not use an abrasive cleaning agent or one that
contains solvent.
àIf the unit is extremely dirty, only use suitable clean-
ing materials.
àClean the air filters of the indoor unit at regular inter-
vals, more often if necessary, in line with the operat-
ing instructions.
àBefore and after the operating season, check
whether the diameter of the condensation lines has
become smaller as a result of dirt.
If so, they must be cleaned.
àWe recommend concluding a maintenance agree-
ment with an authorised service centre.
This is the best way to guarantee that the unit is op-
erated safely!
Note:
Never operate the unit without the original filters. Other-
wise the heat-exchanger fins would become dirty and
the performance of the unit would suffer. Dirty fins are
difficult to clean.
G
Before any work on the units is performed, they
must be disconnected from the power supply and
prevented from being inadvertently switched on!
Maintenance and Service
Regular care and the observation of a number of basic
rules will ensure the unit’s long service life and reliable
operation.
Cleaning the filter
Clean the air filter at intervals of no longer than 2 weeks.
If the air is extremely dirty, shorten this timeframe ac-
cordingly.
Proceed as follows to clean the filter:
1. First rotate both plastic cross-head screws on the
grating by 90°.
The air intake grille cannot fall out because it is sus-
pended on the other side and attached to the grating.

13
GWhen using water, the filter must first be com-
pletely air dried before it can be reinserted into the
unit.
5. Reinsert the filter carefully.
Make sure it is securely in place.
6. Close the air intake grille.
7. Switch the unit back on.
Shutting Down the Unit
Temporary shutdown
1. Switch all indoor units off using the remote control.
2. Disconnect the system with the main switch or fuse
protection from the power supply.
3. Check the indoor unit and outdoor part for visible
damage.
4. Clean the indoor unit and outdoor parts as described
in the “Maintenance and Service” section. Cover the
outdoor part if possible with a plastic cover to protect
it from weather conditions such as snow.
Permanent shutdown
For environmental safety reasons, the air conditioners
may only be deinstalled by authorised service centres.
REMKO GmbH & Co. KG or your contract partner would
be happy to provide you with the name of a service cen-
tre in your area.
2. Open the air intake grille
and pull the filter out.
3. Clean the filter using a
standard vacuum cleaner.
Rotate the dirty side to the
top.
4. Heavy dirt can be re-
moved carefully with
lukewarm water and a
mild cleaning agent.
Rotate the dirty side to
the bottom.
Customer Service and
Guarantee
For the guarantee to be valid, the purchaser or his cus-
tomer must completely fill out the "guarantee certificate"
enclosed with all units and send it back to REMKO GmbH
& Co. KG.
The units are repeatedly tested at the production site to
ensure that they are working properly. If a malfunction
occurs that cannot be eliminated by the operating per-
sonnel, please contact your dealer or contract partner.
Operation/handling which does not comply with
these instructions is prohibited!
In cases of non-compliance, we assume no liability
and the guarantee becomes null and void.
G
Proper use
The manufacturer assumes no liability for damage re-
sulting from non-compliance with manufacturer specifi-
cations and legal requirements, or if modifications are
made to the units.
Only authorised personnel may come into contact with
the cold cycle. This ensures that refrigerant does not es-
cape into the environment when the unit is being re-
paired.
Both the refrigerant and the system parts are subject to
special requirements for disposal.
The refrigerant in use is a safety refrigerant. This means
that, should damage occur, the quantities released will
not cause injury to the respiratory systems of people
and animals.
Important information about recycling!
Environment and
Recycling
G
Do not touch the liquid refrigerant as it can freeze the
skin!

14
* Capacities based on ISO R 859A; room temperature of TK 27°C/FK 19°C - outside temperature 35°C
** Noise measurement DIN 45635 - 01 - KL3
Technical Data
RKV 13 C RKV 18 C RKV 24 C
Cooling capacity* W See outdoor part
Refrigerant R 407 C R 407 C R 407 C
Operating range °C +17 °C to + 32 °C in 1 °C increments
Injection line Inch (mm) 1/4(6.35) 1/4(6.35) 1/4(6.35)
Suction line Inch (mm) 1/2(12.7) 1/2(12.7) 1/2(12.7)
Dehumidification capacity l/h 0.8 1.9 2.5
Power supply 230 V, 50 Hz supplied via control line (outdoor part)
Power consumption *W 75 80 105
Current consumption *A 0.4 0.4 0.5
Fan capacity W 63 68 93
Fan speeds 3 + automatic 3 + automatic 3 + automatic
Air volume current per speed m³/h 550 / 600 / 660 560 / 630 / 700 680 / 770 / 900
Unit dimensions H / W / D mm 575 / 575 / 298 575 / 575 / 298 575 / 575 / 298
Cover dimensions H / W / D mm 720 / 720 / 30 720/ 720 / 30 720 / 720 / 30
Weight unit / cover kg 17.5 / 2.5 19 / 2.5 19 / 2.5
Sound pressure level ** dB (A) 27 / 31 / 34 30 / 33 / 36 35 / 38 / 42
Ref. no. 1613524 1613525 1613526
4800 6800
Dimensions
575
225
280
298
150
120
158
70
575 91
52
56
550
720
515
50
30
25
We reserve the right to make changes to dimensions and design in the interest of technical progress.

15
GGBefore any work on the unit is performed, it must be disconnected from the power supply (fuse or
repair switch) and prevented from being inadvertently switched on!
Troubleshooting
This unit has been designed based on state-of-the-art manufacturing methods and it has been tested repeatedly to
ensure that it is working properly. However, should problems occur, refer to the following list.
Should the unit still not work after performing these functional checks, please contact the closest dealer or REMKO
GmbH & Co KG. directly. See also section “Customer Service and Guarantee”.
Problem Possible cause Check Remedy
The unit does not
start or it switches
itself off automatically.
Power failure Are all other electrical components
working?
Check current and wait for the device to
start again
Power fuse / power supply defective Are all currents for lighting func-
tional?
Replace power fuse /
Switch on main switch
Power supply line damaged Are all other electrical components
working?
Maintenance by authorised personnel
Amount of time waited after switch-
ing unit on was too short
Plan for longer waiting periods Restart after approx. 5 minutes
Operating temperature too low / too
high
Is the fan still working? Stay within temperature range of be-
tween 17 and 32° C
The cassette is not
responding to the
remote control
Timer set to “ON” Delete programming Wait for the unit to start
Excess current caused by thunder-
storms
Was there recently lightning in the
region ?
Switch the system off and then back on
again
Polarity of batteries incorrect after
replacement
Is the polarity correct? Insert batteries with the correct polarity
Transmission distance too great /
reception blocked
Is the transmission signal at a dis-
tance of approx. 3 m when the but-
ton is pressed?
Reduce distance to under 5 m and
change location
Remote control defective Does the unit work in manual
mode? See page 6
Replace remote control
Too much direct sunlight on the re-
ceiver or transmitter
Does the unit function in the shade? Place the transmitter or receiver in the
shade
Electromagnetic fields are disrupt-
ing transmission
Does the unit work when devices in
the vicinity are switched off?
No signal transmission when sources of
disruption are operated simultaneously
The Stop button was pressed but
cassette fan keeps running
Does the unit automatically switch
off after 30 seconds?
Unit function OK, continuous operation
of heat-exchanger plate fins too dry
Remote control buttons stuck / two
buttons pressed at once
Does the symbol appear on the dis-
play?
Unstick button / only press one button
Dead batteries in the remote control Are the batteries new? Is the display
completely readable?
Insert new batteries
Temperature setting too high Is the selected temperature above
the room temperature?
Reduce temperature
The device is either
not cooling at all or
only a little bit.
Filter is dirty/ intake / outlet opening
is blocked by foreign bodies
Open grating and check filter? Clean filter
Windows and doors are opened /
increased amount of warm air or
cold air
Have there been changes in design
or use?
Close the windows and doors / mount
additional systems
Air circulation blocked for cooling
two rooms
Is the connection between the air
outlet and air intake opening clear?
Make sure that air can circulate freely
Cool mode is not set Does the cool symbol appear on the
display?
Correct the unit settings
The drainage line of the condensa-
tion collector is blocked / damaged
Can condensation drain freely? Clean the drainage line and the conden-
sation collector
External condensation pump or float
regulator is defective
Is the collector filled with water and
the pump is not working?
Have pump checked by authorised
service centre
Condensation water
is leaking from the
indoor unit.
One of the unit’s safety mecha-
nisms was triggered.
Is the red light on the receiver of the
indoor unit lit up?
See the section “The receiver on the
indoor unit”
There is a unit malfunction. Is the green light on the receiver of
the indoor unit blinking?
Fix the problem. Disconnect the unit
from the power supply to start it again
without a malfunction display. See page 5
One of the unit’s safety mecha-
nisms was triggered.
Is the red light on the receiver of the
indoor unit lit up?
See the section “The receiver on the
indoor unit”

16
Assembly Instructions for
Service Personnel
Important instructions prior to installation
Prior to actual assembly, the following items have to be
checked and complied with:
àEnsure that the contents of the package are com-
plete and that the units have no visible damage re-
sulting from transport.
Any problems must be communicated directly to
your contract partner and the shipping company.
àPlace the unit in its original packaging as close as
possible to the location where it will be assembled to
prevent damage from transport.
àSelect a location to set up the unit where air can flow
freely in and out of the device, where the unit is not
in direct sunlight and is not close to other sources of
heat.
àAir should be distributed optimally throughout all ar-
eas of the room to be cooled and no drafts should be
created.
àPrior to installation, check that the electrical connec-
tion values and the data on the type plate are consis-
tent.
àMake sure that all electrical connections meet the
DIN-VDE requirements.
àLift the cassette on the corners and not with the re-
frigerant or condensation connections.
àPrior to unit assembly, the connection adaptors for
the adjacent room connection and the fresh air con-
nection must be attached.
àCarefully plan where the condensation line will be
laid.
àMake sure that, if laid horizontally, there is an ade-
quate incline.
At least 2 %.
àThe integrated pump can bridge a maximum height
difference of 250 mm on top of the unit.
But only if the condensation line flows immediately in
a vertical direction after leaving the unit and then
continues at an incline.
àRemove the protective caps of the unit connections
just before connecting the refrigerant lines.
àThe power supply is only connected to the outdoor
part. The control lines to the indoor unit should be
placed together with the refrigerant lines.
Common installation mistakes
When performing the installation, make sure to observe
the following to ensure smooth operation:
àDo not install the unit in the direct vicinity of objects
that emit intense heat (e.g. lights). Install it in the
middle of the room instead.
Wall lead-throughs
Wall lead-throughs are necessary to establish the con-
nection between the indoor unit and the outdoor part.
Please observe the following:
àFor the connection line to the outdoor part, a lead-
through of at least 70 mm in diameter must be cre-
ated.
àThe lead-through must be placed at an incline of at
least 2% from the inside to the outside.
àMake sure that there are no supply lines located in
the vicinity of the wall lead-through.
àThe air intake and outlet openings may not be
blocked by furniture, curtains, etc.
àPrevent unnecessary bends in the refrigeration lines
to minimise the pressure loss and ensure that the
compressor oil can recirculate properly.
àIf the outdoor part is mounted above the indoor unit,
take steps to recirculate the oil.
àIf this line is connected to the drainage line, an odour
seal must be installed the upper edge of which may
not extend beyond the lower edge of the indoor unit.
àThe refrigerant lines may not be bent or pressed.
àProtect open refrigerant lines from moisture with
suitable caps or adhesive.
àMake sure that all refrigerant lines including all con-
nectors and valves are adequately insulated against
heat.
àMount the outdoor part in such a way that the differ-
ence height to the indoor unit is not more than 10 m.
àMake sure that the maximum length of 15 m for the
basic length of the refrigerant line is not exceeded.
àUse a balance to position the unit precisely which will
prevent condensation from leaking out.
àEquip the ventilation lines for adjacent room cooling
and/or the fresh air connection including the connec-
tor piece with diffusion-sealed heat insulation.
àMake sure that the electrical connections have been
properly attached to the terminals.
Control line
Refrigerant
intake line
Condensation line
Refrigerant
injection line
àWe recommend cushioning the inside of the hole or
lining it to prevent the lines from being damaged.
Suitable materials are, for example, PVC pipes with
an inner diameter of 70 mm.
àAfter assembly is complete, the wall lead-through
must be sealed with a suitable sealing compound.
Do not use any materials containing cement or lime!

17
Installation
The indoor unit is attached by means of four threaded
rods to be provided by the customer. The supplied card-
board stencil makes it easier to position the holes to drill.
Assembly material
To complete installation from start to finish, the following
materials are required: suitable dowels, trapezoidal sheet
suspension / sectional steel, clamps for refrigerant and
condensation lines (or piping ducts), connection pieces
for the condensation line (sanitary).
Unit installation
The unit is installed on the four threaded rods with the
grating down taking into account the ceiling design and
any possible fixtures.
Determine where you will attach the threaded rods for
the unit suspension mount by holding the cardboard
stencil under the ceiling depending on the position of the
ceiling design and mark the attachment points.
Only attach the threaded rods to statically permissible
building parts above the intermediate ceiling.
If two-room and fresh air connections are to be inte-
grated, mount the appropriate connection pieces prior to
installation.
To ensure that the condensation drains into the collec-
tion tray, insert the indoor units into the threaded rods
and bring the units into a horizontal position with the
lower screws.
Maintain a distance of 75 mm between the bottom of
the suspension mount and the bottom of the intermedi-
ate ceiling (see figure above).
Connect the refrigerant, control and condensation lines
to the indoor unit as described below and check again
hat the unit is positioned horizontally.
Finally, tighten the counter screws and assemble the
grating.
75 mm
Static building part
Assembling the connection line
1. Position the cassette in such a way that all sides are
freely accessible.
To ensure the best air distribution in the room, the
indoor unit should be installed in the middle of the
room.
2. The required line cross-sections are provided in the
"Technical Data” table.
3. When assembling the unit, observe the bending radii
of the refrigerant lines and never bend the hose in
the same place twice.
This may cause the line to become brittle or crack.
4. Use only the tools below for assembly.
5. Remove the preinstalled swivel nuts of the units.
6. Only use the swivel nuts supplied for further as-
sembly or use the supplied accessories of the
indoor units if necessary.
7. Before you flare the refrigerant lines, ensure that
there is a swivel nut on the hose.
8. Work with the refrigerant lines as shown in the fig-
ure below:
Deburrer
Refrigerant line Flare tool
G
Only tools approved for use in cold conditions may
be used.
9. Make sure that the flare has the correct shape.
10. First manually connect the refrigerant lines with the
shut-off valves and the bolts to ensure that they are
in the proper position.
uneven
thickness
formation
of cracks
formation
of cracks
rippled CORRECT

18
11. Now tighten the bolts using 2 hexagonal wrenches
that have a large enough opening.
12. Use a second wrench to apply counterpressure
when tightening.
13. Insulate the installed refrigerant lines including the
connector against heat.
Only use insulation hoses sealed against diffusion
that are suitable for this temperature range.
14. Connect the condensation and control lines.
If you also need a condensation pump, install it be-
forehand.
15. If it is not possible to run the condensation line
through the same guideway, make sure that the
condensation can drain freely at all times.
16. Lay the refrigerant lines from the indoor unit to the
outdoor part.
Make sure that they are adequately secured. Take
steps, if necessary, to ensure oil recirculation!
17. Place the control line in the same line guideway.
18. Remove the protective caps supplied and the swivel
nut caps of the shut-off valves and use these for
continued assembly.
19. Before you flare the refrigerant lines, ensure that
there is a swivel nut on the hose.
Only use the factory-installed swivel nuts.
20. Connect the refrigerant lines to the outdoor part as
described above.
G
If the length of the connection line is longer than 5
m, refrigerant must be added to the system during
initial operation.
See the section Adding Refrigerant.
Oil recirculation
If the outdoor part is set up at a higher level than the in-
door unit, appropriate steps must be taken for oil recir-
culation.
This is usually accomplished by creating an oil elevation
arc that is installed every 2.5 meters of line going up.
Impermeability test
Once all connections have been made, the manometer
station is connected to the corresponding valve connec-
tions as described below:
blue = large valve = suction pressure,
After the connection has been made, an impermeability
test is conducted using dry nitrogen.
The connections that have been established are
sprayed with a leak locator spray to test for imperme-
ability. If bubbles appear, the connection was not made
properly. Tighten the bolts more firmly or, if necessary,
create a new flare.
After the impermeability test has been successfully con-
ducted, any excess pressure is removed from the refrig-
erant lines and the vacuum pump put into operation to
create a vacuum in the lines.
We recommend using a two-speed vacuum pump with
an absolute final partial pressure of at least 0.01 mbar
at a pump capacity of a min. of 1.5 m³/h.
Procedure:
1. Remove the vacuum pump and connect the filling
cylinder or the refrigerant container.
2. Place the open cylinder/container on a scale and
calibrate the scale to zero.
3. Create a vacuum in the hose at the height of the ma-
nometer distribution pipe.
4. Determine the required amount based on the infor-
mation in the table above and open the suction pres-
sure side of the manometer to begin the filling proc-
ess.
5. Close the manometer valve when the appropriate
amount has been added.
Length of the line Diameter of the
injection line
Additional quantity
per m
5 m up to and
including a max.
of 15 m
9.52 mm Ø / 3/8‘‘ 18 g for RKS
9.52 mm Ø / 3/8‘‘ 30 g for RKM
Adding refrigerant
The additional refrigerant amount required is based on
the length (5 m and higher) and the diameter of the
pressure line.
Counterpressure
open-end wrench 1
Counterpressure
open-end wrench 2
G
A vacuum with a minimum of 0.05 mbar must be
created!
How long it takes to create the vacuum is based on the
hose line volume of the indoor unit and the length of the
refrigerant lines. However, this process takes a mini-
mum of 30 minutes.
Once foreign gases and moisture have been completely
removed from the system, the manometer station
valves are closed and the valves of the outdoor part are
opened.
Radius
min. 50 mm
Oil elevation arc in the
suction line to the outdoor
part 1x for every 2.5 m
Outdoor part
Indoor unit

19
Condensation Connection
Condensation forms on the evaporator during cooling
operation because temperatures below the dew point
are reached. The collection tray of the indoor unit is
equipped with a condensation hose. The transport
height of the condensation pump is a max. of 250 mm
above the upper edge of the unit.
The condensation pump switches on after a brief delay
following the start of the unit. During cooling mode, it is
in continuous operation. After the unit is switched off,
the pump continues to run for approx. 7 minutes.
To ensure that the condensation can flow freely, the
condensation hose must be laid at an incline of at least
2 % to a drain or to the outside.
àHose extensions can be purchased as accessories.
àIf the condensation is being guided to a drainage
line, please install a siphon-like hose guideway which
acts as an odour seal.
àTo keep water from dripping, the condensation line
should be equipped with heat insulation.
àIf the unit is being operated at outside temperatures
below 0°C, the lines must be placed in such a way
that they are protected from frost.
àIf the drains or the collection trays are more than 250
mm from the mounted cassette, a second condensa-
tion pump purchased as an accessory should be
used.
àAfter the hose has been laid, check to make sure
that condensation can drain freely.
Electric Connection
The electrical connections may only be made by author-
ised service personnel. Prior to installing the electrical
connections on the indoor unit, the system must be cur-
rent-free.
The electrical connections of the indoor unit and the ter-
minals of the control line to the outdoor part are located
on the regulating panel. The regulating panel is hidden
behind the grating on the indoor unit.
The complete unit control is located in the regulating
panel. The power supply is only connected to the out-
door part. The indoor unit is supplied with power from
the outdoor part via the control line.
1. Open the cover of the regulating panel by removing
the 3 screws and taking off the cover.
2. Guide the line through the edge protection rings on
the fresh air connections sides into the unit and lock
into place in the line clamp.
3. Begin wiring by connecting the protective conductor
and connect the contacts of the control, neutral and
external conductors.
Connecting the RKV 13 C indoor unit
L = External conductor power supply indoor unit
N = Neutral conductor power supply indoor unit
Y = Control conductor to outdoor part (compr. on / off)
0 = NO connection
W2 = NO connection planned
Connecting the RKV 18 C and RKV 24 C indoor units
R = External conductor power supply indoor unit
C = Neutral conductor power supply indoor unit
Y = Control conductor to outdoor part (compr. on / off)
0 = NO connection
W2 = NO connection planned
S = NO connection planned
4. Attach the connection plugs CLR and CAto their
counterparts.
It is not possible to switch them.
Cable clamp
Connection plug
CLR and CAfrom
the frame
Frame mounting screws
Connection plug
CLR and CAfrom
the unit
Indoor unit
Outdoor part
Power connection
230V~ 50 Hz
Connecting all indoor units to the RKS outdoor part
R = A
C = N
Y = 2
Indoor unit
Outdoor part
Power connection
230V~ 50 Hz

20
When connecting to RKS:
L = A
N = N
Y = 2
L = External conductor
N = Neutral conductor
Y = Compressor operation (relay)
O = No function
W2 = No function
A = Wire colour BROWN
B = Wire colour BLUE
C = Wire colour BLACK
G = Wire colour GRAY
Y-G = Wire colour YELLOW / GREEN
O = Wire colour ORANGE
R = Wire colour RED
W = Wire colour WHITE
Y = Wire colour GELB Outdoor part
connections
Main board
Fan motor
Micro float regulator
Condensation pump
LED / IR
connection
Plate fin motor and
micro plate fin switch
Transformer
Compressor No function No function Neutral conduct. External conduct. No function Protection conduct.
Wiring diagram RKV 13 C
Main board
Fan
motor
Micro float
regulator
Condensation pump
LED / IR
connection
Plate fin motor and
micro plate fin switch
Transformer
Compressor No function No function
Neutral conduct.
External conduct. No function Protection conduct.
Outdoor part
connections
When connecting to the RKS:
L = A
N = N
Y = 2
L = External conductor
N = Neutral conductor
Y = Compressor operation (relay)
O = No function
W2 = No function
S = No function
A = Wire colour BROWN
B = Wire colour BLUE
C = Wire colour BLACK
G = Wire colour GRAY
Y-G = Wire colour YELLOW / GREEN
O = Wire colour ORANGE
R = Wire colour RED
W = Wire colour WHITE
Y = Wire colour GELB
Wiring diagram RKV 18 C
and RKV 24 C