REMKO JBW 260 DC IT User manual

Assembly and operating instructions
Read the instructions prior to performing any task!
REMKO JBW...DC
JBW 260 DC, JBW 350 DC, JBW 520 DC
Inverter wall-mounted room air conditioner with split design
0113-2017-07 Edition 2, en_GB

Installation and operating instructions (translation of the orig-
inal)
Read these operating instructions carefully before commis-
sioning / using this device!
These instructions are an integral part of the system and must
always be kept near or on the device.
Subject to modifications; No liability accepted for errors or mis-
prints!

Table of contents
1 Safety and usage instructions............................................................................................................. 5
1.1 General safety notes....................................................................................................................... 5
1.2 Identification of notes...................................................................................................................... 5
1.3 Personnel qualifications.................................................................................................................. 5
1.4 Dangers of failure to observe the safety notes................................................................................ 5
1.5 Safety-conscious working............................................................................................................... 5
1.6 Safety notes for the operator........................................................................................................... 6
1.7 Safety notes for installation, maintenance and inspection.............................................................. 6
1.8 Unauthorised modification and changes......................................................................................... 6
1.9 Intended use................................................................................................................................... 6
1.10 Warranty........................................................................................................................................ 6
1.11 Transport and packaging............................................................................................................... 7
1.12 Environmental protection and recycling........................................................................................ 7
2 Technical data........................................................................................................................................ 8
2.1 Unit data.......................................................................................................................................... 8
2.2 Unit dimensions............................................................................................................................. 10
3 Design and function............................................................................................................................ 11
3.1 Unit description.............................................................................................................................. 11
4 Operation............................................................................................................................................. 12
5 Installation instructions for qualified personnel.............................................................................. 19
5.1 Important notes prior to installation............................................................................................... 19
5.2 Wall openings................................................................................................................................ 19
5.3 Installation materials..................................................................................................................... 19
5.4 Selection of installation location ................................................................................................... 20
5.5 Minimum clearances..................................................................................................................... 22
5.6 Oil return measures....................................................................................................................... 23
5.7 Connection variants for the indoor unit......................................................................................... 23
5.8 Wall bracket for the indoor unit..................................................................................................... 24
6 Installation........................................................................................................................................... 24
6.1 Installation of the indoor unit......................................................................................................... 24
6.2 Connecting the refrigerant piping.................................................................................................. 25
6.3 Additional notes on connecting the refrigerant piping................................................................... 27
6.4 Leak testing................................................................................................................................... 27
6.5 Adding refrigerant.......................................................................................................................... 28
7 Condensate drainage connection and safe drainage...................................................................... 28
8 Electrical wiring................................................................................................................................... 30
8.1 General notes................................................................................................................................ 30
8.2 Connecting the indoor unit............................................................................................................ 30
8.3 Outdoor unit connection................................................................................................................ 31
8.4 Electrical wiring diagram............................................................................................................... 31
8.5 Electrical drawings........................................................................................................................ 33
9 Before commissioning....................................................................................................................... 35
10 Commissioning................................................................................................................................... 35
11 Trouble-shooting, fault analysis and customer service.................................................................. 37
11.1 Troubleshooting and customer service........................................................................................ 37
11.2 Indoor unit fault analysis.............................................................................................................. 40
3

12 Care and maintenance........................................................................................................................ 42
13 Shutdown............................................................................................................................................. 44
14 Exploded view and spare parts lists................................................................................................. 45
14.1 Exploded view - Indoor unit......................................................................................................... 45
14.2 Spare parts list - Indoor unit........................................................................................................ 46
14.3 Exploded view of the outdoor unit............................................................................................... 47
14.4 Spare parts list - Outdoor unit..................................................................................................... 48
15 Index..................................................................................................................................................... 49
REMKO JBW...DC
4

1 Safety and
usage instructions
1.1 General safety notes
Carefully read the operating manual before com-
missioning the units for the first time. It contains
useful tips and notes such as hazard warnings to
prevent personal injury and material damage.
Failure to follow the directions in this manual not
only presents a danger to people, the environment
and the system itself, but will void any claims for
liability.
Keep this operating manual and the refrigerant
data sheet near to the units.
1.2 Identification of notes
This section provides an overview of all important
safety aspects for proper protection of people and
safe and fault-free operation.The instructions and
safety notes contained within this manual must be
observed in order to prevent accidents, personal
injury and material damage.
Notes attached directly to the units must be
observed in their entirety and be kept in a fully
legible condition.
Safety notes in this manual are indicated by sym-
bols. Safety notes are introduced with signal words
which help to highlight the magnitude of the danger
in question.
DANGER!
Contact with live parts poses an immediate
danger of death due to electric shock. Damage
to the insulation or individual components may
pose a danger of death.
DANGER!
This combination of symbol and signal word
warns of a situation in which there is immediate
danger, which if not avoided may be fatal or
cause serious injury.
WARNING!
This combination of symbol and signal word
warns of a potentially hazardous situation,
which if not avoided may be fatal or cause
serious injury.
CAUTION!
This combination of symbol and signal word
warns of a potentially hazardous situation,
which if not avoided may cause injury or mate-
rial and environmental damage.
NOTICE!
This combination of symbol and signal word
warns of a potentially hazardous situation,
which if not avoided may cause material and
environmental damage.
This symbol highlights useful tips and recom-
mendations as well as information for efficient
and fault-free operation.
1.3 Personnel qualifications
Personnel responsible for commissioning, opera-
tion, maintenance, inspection and installation must
be able to demonstrate that they hold a qualifica-
tion which proves their ability to undertake the
work.
1.4 Dangers of failure to observe
the safety notes
Failure to observe the safety notes may pose a risk
to people, the environment and the units. Failure to
observe the safety notes may void any claims for
damages.
In particular, failure to observe the safety notes
may pose the following risks:
nThe failure of important unit functions.
nThe failure of prescribed methods of mainte-
nance and repair.
nDanger to people on account of electrical and
mechanical effects.
1.5 Safety-conscious working
The safety notes contained in this manual, the
existing national regulations concerning accident
prevention as well as any internal company
working, operating and safety regulations must be
observed.
5

1.6 Safety notes for the operator
The operational safety of the units and compo-
nents is only assured providing they are used as
intended and in a fully assembled state.
nThe units and components may only be set up,
installed and maintained by qualified per-
sonnel.
nProtective covers (grille) over moving parts
must not be removed from units that are in
operation.
nDo not operate units or components with
obvious defects or signs of damage.
nContact with certain unit parts or components
may lead to burns or injury.
nThe units and components must not be
exposed to any mechanical load, extreme
levels of humidity or extreme temperature.
nSpaces in which refrigerant can leak sufficient
to load and vent. Otherwise there is danger of
suffocation.
nAll housing parts and device openings, e.g. air
inlets and outlets, must be free from foreign
objects, fluids or gases.
nThe units must be inspected by a service tech-
nician at least once annually. Visual inspec-
tions and cleaning may be performed by the
operator when the units are disconnected from
the mains.
1.7 Safety notes for installation,
maintenance and inspection
nAppropriate hazard prevention measures must
be taken to prevent risks to people when per-
forming installation, repair, maintenance or
cleaning work on the units.
nThe setup, connection and operation of the
units and its components must be undertaken
in accordance with the usage and operating
conditions stipulated in this manual and comply
with all applicable regional regulations.
nLocal regulations and laws such as Water
Ecology Act must be observed.
nThe power supply should be adapted to the
requirements of the units.
nUnits may only be mounted at the points pro-
vided for this purpose at the factory. The units
may only be secured or mounted on stable
structures, walls or floors.
nMobile units must be set up securely on suit-
able surfaces and in an upright position. Sta-
tionary units must be permanently installed for
operation.
nThe units and components should not be oper-
ated in areas where there is a heightened risk
of damage. Observe the minimum clearances.
nThe units and components must be kept at an
adequate distance from flammable, explosive,
combustible, abrasive and dirty areas or
atmospheres.
nSafety devices must not be altered or
bypassed.
1.8 Unauthorised modification
and changes
Modifications or changes to units and components
are not permitted and may cause malfunctions.
Safety devices may not be modified or bypassed.
Original replacement parts and accessories
authorised by the manufactured ensure safety. The
use of other parts may invalidate liability for
resulting consequences.
1.9 Intended use
Depending on the model, the units and the addi-
tional fittings with which they are equipped are only
intended to be used as an air-conditioner for the
purpose of cooling or heating the air in an
enclosed space.
Any different or additional use is a non-intended
use. The manufacturer/supplier assumes no lia-
bility for damages arising from a non-intended use.
The user bears the sole risk in such cases.
Intended use also includes working in accordance
with the operating and installation instructions and
complying with the maintenance requirements.
The threshold values specified in the technical
data must not be exceeded.
1.10 Warranty
For warranty claims to be considered, it is essential
that the ordering party or its representative com-
plete and return the "certificate of warranty" to
REMKO GmbH & Co. KG at the time when the
units are purchased and commissioned.
The warranty conditions are detailed in the "Gen-
eral business and delivery conditions". Further-
more, only the parties to a contract can conclude
special agreements beyond these conditions. In
this case, contact your contractual partner in the
first instance.
REMKO JBW...DC
6

1.11 Transport and packaging
The devices are supplied in a sturdy shipping con-
tainer. Please check the equipment immediately
upon delivery and note any damage or missing
parts on the delivery and inform the shipper and
your contractual partner. For later complaints can
not be guaranteed.
WARNING!
Plastic films and bags etc. are dangerous
toys for children!
Why:
- Leave packaging material are not around.
- Packaging material may not be accessible to
children!
1.12 Environmental protection
and recycling
Disposal of packaging
All products are packed for transport in environ-
mentally friendly materials. Make a valuable contri-
bution to reducing waste and sustaining raw mate-
rials. Only dispose of packaging at approved
collection points.
Disposal of equipment and components
Only recyclable materials are used in the manufac-
ture of the devices and components. Help protect
the environment by ensuring that the devices or
components (for example batteries) are not dis-
posed in household waste, but only in accordance
with local regulations and in an environmentally
safe manner, e.g. using certified firms and recy-
cling specialists or at collection points.
7

2 Technical data
2.1 Unit data
Series JBW 260 DC JBW 350 DC JBW 520 DC
Operating mode Inverter wall-mounted room air conditioner combination
for cooling and heating
Nominal cooling output 1) kW 2.60 (1.0-3.5) 3.60 (1.1-4.0) 5.10 (3.0-5.8)
Energy efficiency ratio SEER 1) 6.1 6.1 6.1
Electrical rated power consumption,
cooling 1) kW 0.79 1.10 1.58
Electrical rated current consumption,
cooling 1) A3.50 4.97 7.20
Power consumption, annual, QCE 3) kWh 149 201 307
Energy efficiency ratio, cooling 1) A++ A++ A++
Nominal heat capacity 2) kW 2.7 (0.8-3.6) 3.6 (1.0-4.3) 5.4 (1.3-6.2)
Energy efficiency ratio SCOP 4) 4.0 4.0 4.0
Electrical rated power consumption,
heating 2) kW 0.73 1.00 1.58
Electrical rated current consumption,
heating 2) A3.30 4.43 6.50
Power consumption, annual, QHE 3) kWh 878 1189 1727
Energy efficiency ratio, heating 2) A+ A+ A+
Max. power consumption kW 1.80 2.30 2.55
Max. current consumption A 9.00 10.50 11.50
EDP no. 1637260 1637350 1637520
Data specific to indoor unit JBW 260 DC IT JBW 350 DC IT JBW 520 DC IT
Application area (room volume),
approx. m380 110 160
Adjustment range, room temperature °C +16 to +32
Operating range °C/
r.H.% +16 to +32 / 35-65
Air flow volume per stage m³/h 400/510/580 420/530/600 480/610/980
Sound pressure level per stage 5) dB (A) 29/32/34 30/33/35 32/35/40
Sound power level max. dB(A) 53 53 58
Enclosure class IP X0
Condensate drainage connection mm 18
Dimensions: H/W/D mm 300/800/198 300/800/198 315/970/235
REMKO JBW...DC
8

Data specific to indoor unit JBW 260 DC IT JBW 350 DC IT JBW 520 DC IT
Weight kg 10.0 10.0 14.0
EDP no. 1637262 1637352 1637522
Data specific to outdoor unit JBW 260 DC AT JBW 350 DC AT JBW 520 DC AT
Power supply V/Ph/
Hz 230 / 1~ / 50
Operating range, cooling °C +5 to +50
Operating range, heating °C -15 to +30
Air flow rate, max. m³/h 600 1,000
Enclosure class IP 24
Sound power level max. dB (A) 59 60 65
Sound pressure level 5) dB (A) 50 60
Refrigerant 6) R 410A
Refrigerant, basic quantity kg 0.80 0.81 1.72
CO2 equivalent t 1.67 1.69 3.59
Operating pressure, max. kPa 4200 / 1500
Refrigerant, additional quantity >5m g/m 20 30
Refrigerant piping, max. length m 15
Refrigerant piping, max. height m 5
Refrigerant connection
Liquid line
Inche
s
(mm)
1/4 (6.35) 1/4 (6.35) 1/4 (6.35)
Refrigerant connection
Suction pipe
Inche
s
(mm)
3/8 (9.52) 3/8 (9.52) 1/2 (12.70)
Dimensions: H/W/D mm 540/720/260 540/720/260 535/802/298
Weight kg 26.0 27.0 38.0
EDP no. 1637261 1637351 1637521
1) Air inlet temp. TK 27°C / FK 19°C, outside temperature TK 35°C, FK 24°C, max. air flow volume,
5m pipe length
2) Air inlet temp. TK 20°C, outside temperature TK 7°C, FK 6°C, max. air flow volume, 5m pipe length
3) The specified value is based on results from standard testing.
The actual consumption depends on the use and location of the unit
4) The specified value is based on the average heating period
5) At distance of 1m in the open air; specified values are maximum values
6) Contains greenhouse gas per the Kyoto protocol, GWP 2088 (for further information, see chapter "Adding refrigerant")
9

2.2 Unit dimensions
Outdoor units
A
BC
D
E
Fig. 1: Outdoor unit dimensions JBW 260 DC AT-520 DC AT (All measurements in mm)
Measurements (mm) A B C D E
JBW 260 DC AT-350 DC AT 540 720 260 539 280
JBW 520 DC AT 535 802 298 546 316
Indoor units
A
BC
Fig. 2: Indoor unit dimensions JBW 260 DC IT-520 DC IT (All measurements in mm)
Measurements (mm) A B C
JBW 260 DC IT-350 DC IT 300 800 198
JBW 520 DC IT 315 970 298
We reserve the right to modify the dimensions and design as part of the ongoing technical development
process.
REMKO JBW...DC
10

3 Design and function
3.1 Unit description
The room air conditioners JBW 260 DC-520 DC
have a REMKO JBW...AT outdoor unit as well as a
JBW...IT indoor unit.
In cooling mode, the outdoor unit serves to output
the heat extracted by the indoor unit from the room
being cooled. In heating mode, the heat taken up
by the outdoor unit can be discharged by the
indoor unit into the room to be heated. In both
operating modes, the output produced by the com-
pressor precisely matches requirements, and
thereby regulates the nominal temperature with
minimal temperature deviations. This "inverter
technology" results in energy savings over conven-
tional split systems and also reduces noise emis-
sions to a particularly low level. The outdoor unit
can be installed in an outdoor area or, providing
that certain requirements are met, an indoor area.
The indoor unit is designed to be mounted high up
on the wall, in indoor areas. It is operated by an
infrared remote control.
The outdoor unit consists of a cooling cycle with
compressor, fin condenser, condenser fan,
reversing valve and throttle element. The outdoor
unit is controlled by the regulation of the indoor
unit.
The indoor unit consists of a fin evaporator, evapo-
rator fan, controller and condensate tray.
Floor brackets, wall brackets, refrigerant piping and
condensate pumps are available as accessories.
21
4
3
Fig. 3: Cooling cycle diagram for indoor unit
1: Evaporator
2: Evaporator fan
3: Suction pipe connection
4: Injection pipe connection
2
1
4
3
5
7
8
9
6
Fig. 4: Cooling cycle diagram for outdoor unit
1: Condenser
2: Condenser fan
3: Reversing valve
4: Compressor
5: Filter dryer
6: Capillary tube throttle element
7: Pressure gauge connection
8: Suction pipe connection valve
9: Injection pipe connection valve
1
7
8
9
B
A
4
3
5
6
2
3
5
Fig. 5: System layout
A: Outdoor area
B: Indoor area
1: Indoor unit
2: Outdoor unit
3: Condensate drainage line
4: Condenser fan
5: Power supply
6: Shut-off valve
7: Suction pipe
8: Injection pipe
9: Control line
Refrigerant piping is used to connect the indoor
unit to the outdoor unit.
11

4 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
with the remote control, then it can also be man-
ually operated.
Manual mode
If the infrared remote control is not functioning, you
can switch the unit to automatic mode manually
and switch it off. To do so, press the "Auto" key
behind the air inlet grill.
Infrared remote control
The infrared remote control sends the programmed
settings 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 are obstructing the transmission path.
Two AAA batteries must be inserted into the
remote control in preparation. To do so, remove
the flap from the battery compartment and insert
the batteries the correct way around (see mark-
ings). Removing the batteries causes all stored
data to be lost. The remote control will then access
the default settings, which you are free to cus-
tomise at any time.
max. 6 m
Fig. 6: Maximum distance
Alarms are indicated by a code (see chapter
Troubleshooting and customer service).
NOTICE!
Immediately replace flat batteries with a new
set, otherwise there is a risk of leakage. It is
recommended that the batteries are removed if
the equipment is shut down for longer periods.
Help save on energy consumption in stand-by
mode! If the device, system or component is not
in use, we recommend disconnecting the power
supply. Components with a safety function is
excluded from our recommendation!
Display on indoor unit
The display illuminates according to the settings.
1
Fig. 7: Display on indoor unit
1: Set setpoint/fault indicator
REMKO JBW...DC
12

Keys on the remote control
13
4
19
17 18
20
Fig. 8: Keys on the remote control
1
"ON/OFF" key
This key switches the unit on and off. This also
deactivates recently used functions such as the
timer or the "Sleep" mode.
3
"SPEED" key
Press this key to select the fan speed. The fol-
lowing stages are available:
Automatic (Auto), low (Low), medium (Mid) and
high (High) fan stage.
4
" ▲ " and " ▼ " keys
The " ▲ " key increases the desired temperature to
32 °C in 0.5°C increments.
The " ▼ " key decreases the desired temperature
to 16 °C in 0.5°C increments.
17
„COOL“ key
Activates the cooling mode of the unit.
18
Taste „HEAT“
Activates the heating mode of the unit.
19
„SWING key(horizontal)“
Activates the horizontal swing mode of the unit.
20
„SWING key(vertical)“
Activates the vertical swing mode of the unit.
The scope of functions of the remote control
can be extended by unfolding:
Fig. 9: Remote control open
13

Extended functionality of the remote control
2
1
4
3
5
7
9
12
14
6
8
10
11
13
21
15
16
Fig. 10: Keys on the remote control
1
"ON/OFF" key
This key switches the unit on and off. This also
deactivates recently used functions such as the
timer or the "Sleep" mode.
2
"MODE" key
This key is used to select a mode. Press this key to
change between the following operating modes:
1. Automatic mode (AUTO)
2. Cooling mode (COOL)
3. Dehumidification mode (DRY)
4. Heating mode (HEAT)
5. Recirculation mode (FAN)
3
"SPEED" key
Press this key to select the fan speed. The fol-
lowing stages are available:
Automatic (Auto), low (Low), medium (Mid) and
high (High) fan stage.
4
" ▲ " and " ▼ " keys
The " ▲ " key increases the desired temperature to
32 °C in 0.5°C increments.
The " ▼ " key decreases the desired temperature
to 16 °C in 0.5°C increments.
5
"TURBO" key
Press this key in cooling and heating mode to acti-
vate and deactivate the "TURBO" function. The
configured setpoints can be reached more quickly
by using this function.
6
"HEALTH" key
When you activate the "HEALTH" function, the unit
selects the fan speed and air outlet temperature
that is ideal for the user’s well-being based on the
current room temperature.
7
"SILENCE" key
"SILENCE" mode is activated/deactivated by
pressing this key. By lowering the fan speed to a
minimum, the noise emissions are reduced signifi-
cantly.
8
"SLEEP" key
When you press the "SLEEP" key, the corre-
sponding symbol appears on the display of the
indoor unit and the "SLEEP" function is activated
for 10 seconds. When you activate this mode, the
room temperature is adjusted automatically within
10 seconds to ensure the optimum sleeping tem-
perature.
9
"TIMER" key
The start/stop timer can be programmed with this
key. A flashing "H on/(off)" appears on the display
when you press the key once. If you would like to
program the start time, select "H on", for the stop
time, select "H off". You can now use the arrow
keys to preselect the time in increments of 0.5
hours at which the unit should switch on/off. Press
the key again to confirm. "H on/(off)" stops
flashing. The start or stop time has now been pre-
selected. If you do not press a key while "H on/
(off)" is flashing, the remote control will reset auto-
matically after 10 seconds. To deactivate the timer,
you must press the "Timer" key again.
REMKO JBW...DC
14

10
"iFEEL" key
Once you press this key, the remote control tem-
perature probe is active and the "current tempera-
ture" appears on the display. This function is suit-
able for ensuring as consistent a room temperature
as possible in large rooms. The temperature meas-
ured by the remote control is then transmitted to
the indoor unit. Please keep in mind that there
must be a direct radio connection between the
remote control and the indoor unit at all times.
Press the key again to deactivate the function.
11
"iCLEAN" key
Press this key to activate the unit’s self-clean func-
tion. This lasts approx. 30 minutes. Once the time
has elapsed the unit switches off automatically.
This function dries the evaporator to prevent the
build-up of odour.
12
"DISPLAY" key
This key switches the indoor unit’s LCD display on
and off.
13
"Anti-F" (anti-fungus) key
Use this key to activate or deactivate the fan stop-
ping time. When this mode is activated, the fan
runs for a further 3 minutes after the unit has been
switched off. This allows the heat exchanger to dry,
thus preventing the build-up of odour.
This function can only be activated when the unit is
switched off. The "Anti-F" symbol appears on the
display of the remote control.
14
“ELE.H" key
When the remote control is clapped shut, this key
is used to adjust the vertical air control fins and to
activate the vertical swing operation. If the remote
control is still open, this key will not work.
15
"SPOT SWING" key
Pressing this key will activate the swing function of
the horizontal air exhaust fins. If you press the key
again, the fins will remain in the required position.
16
"ECO" key
The unit will run in "ECO" mode if you press the
key in cooling mode. Activating this function will
reduce the current consumption of the unit. Keep
in mind that the full cooling capacity will not be
available when the "ECO" function is active.
17
Infrared sensor
Indicators on the LCD
1
TURBO
C
H
ON
SLEEP
HEALTH
ECO
DISPLAY
AUTO
COOL
DRY
HEAT
FAN
RUN ROOM
PIR
AUTO SILE
POWERCON
iFEEL
SWING
SPEED
OFF
Anti-F
iCLEAN
LOCK ELE.H
2
3 5
46
7
8
9
11
12
13
10
1: Display of the selected operating mode
2: "Special function" active display
3: Unit operation indicator
4: Room temperature indicator
5: Infrared transmission active
6: Battery status
7: Temperature unit
8: Temperature display
9: Fan speed display
10: Horizontal swing mode active
11: Vertical swing mode active
12: Timer on/off
13: Hour indicator for timer setting
The illustration of the LCD with all of the sym-
bols present is only intended to provide a
clearer overview. During operation, only those
symbols relevant to the respective functions
appear on the display.
15

Key functions
A symbol is shown on the display to indicate that
the settings are being transferred.
"Auto" mode
Make sure that the indoor unit is connected to the
power supply, and is switched on.
The operating mode indicator on the display of the
indoor unit begins to flash.
1. Press the "MODE" key to select "Auto"
mode.
2. Press the "UP/DOWN" key to set the desired
temperature. The temperature can be set
between 17 and 30°C, in increments of
0.5°C.
3. Press the "ON/OFF" key to switch on the air
conditioning unit.
2
1
4
In "automatic" mode, the cooling unit automati-
cally selects among cooling, recirculation and
heating operation and tries to reach the setpoint
set on the remote control
"Automatic", "Cooling", "Dehumidification",
"Heating" and "Recirculation" modes
Make sure that the indoor unit is connected to the
power supply, and is switched on.
1. Press the "MODE" key to select from oper-
ating modes "Automatic", "Cooling", "Dehu-
midification", "Heating" or "Recirculation".
2. Press the "UP/DOWN" key to set the desired
temperature. The temperature can be set
between 17 and 30°C, in increments of
0.5°C.
3. Press the "FAN" key to select from the four
fan speeds (Auto, slow, medium and fast).
4. Press the "ON/OFF" key to switch on the air
conditioning unit.
2
1
4
3
Fig. 11: "Cooling", "Heating" and "Recirculation"
mode
–In "Fan" mode, the temperature setting is
not shown on the remote control, and it is
not possible to check the room temperature.
In this case steps 1, 3 and 4 can be carried
out.
REMKO JBW...DC
16

"Dehumidification" mode
Make sure that the indoor unit is connected to the
power supply, and is switched on.
The operating mode indicator on the display of the
indoor unit begins to flash.
1. Press the "MODE" key to select "Dehumidifi-
cation" mode. "Dry" appears on the display.
2. The temperature and fan settings have no
function.
3. Press the "ON/OFF" key to switch on the air
conditioning unit.
2
1
Fig. 12: "Dehumidification" mode
In "Dehumidification" mode, it is not possible to
set the fan speed. This is already controlled
automatically.
"Timer" mode
Press the "TIMER ON" key to set the "Auto on"
time and the "TIMER OFF" key to set the "Auto off"
time for the unit.
Setting the "Auto on" time
1. Press the "TIMER ON" key. The remote con-
trol shows "TIMER ON", the last "Auto on"
time setting and the symbol "H" appears on
the display. The unit is now ready to reset the
"Auto on" time and to start "TIMER ON"
mode.
2. Press the "TIMER ON" key again to set the
desired "Auto on" time. Each time the key is
pressed, the time is increased by half an
hour between 0 and 10 hours, and by an
hour between 10 and 24 hours.
3. Once these settings have been made, there
is a one second delay before the remote con-
trol transmits the signal to the indoor unit.
Then, after approx. two seconds, the "H"
symbol disappears from the LCD display, and
the set temperature appears again on the
display.
9
Fig. 13: "Timer" mode
17

Setting the "Auto off" time
1. Press the "TIMER OFF" key. The remote
control shows "TIMER OFF", the last "Auto
off" time setting and the symbol "H" appears
on the display. The unit is now ready to reset
the "Auto off" time and to stop "TIMER OFF"
mode.
2. Press the "TIMER OFF" key again to set the
desired "Auto off" time. Each time the key is
pressed, the time is increased by half an
hour between 0 and 10 hours, and by an
hour between 10 and 24 hours.
3. Once these settings have been made, there
is a one second delay before the remote con-
trol transmits the signal to the indoor unit.
Then, after approx. two seconds, the "H"
symbol disappears from the LCD display, and
the set temperature appears again on the
display.
–When Timer mode is selected, the remote
control automatically transfers the timer
signal to the indoor unit for the specified
period of time. Therefore, you should hold
the remote control in a location where it can
transfer the signal to the indoor unit without
interference.
–The effective operation for the time settings
by the remote control for the timer function
is restricted to the following settings:
0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0,
5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10,
11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,
22, 23 and 24.
SLEEP function
In this function, the unit automatically increases (in
cooling mode) or reduces (in heat mode) the tem-
perature in the first two hours by 1°C an hour. For
the next five hours, the temperature is them kept
constant. Then this function is stopped.
The function maintains the most comfortable tem-
perature while saving energy.
8
Fig. 14: "Sleep" function
The "SLEEP" function is only available in the
"Cooling", "Heating" and "Auto" modes.
Adjusting the airflow direction
Use the "SWING" (up/down arrows) and "SWING"
(left/right arrows) keys to achieve the desired air-
flow direction.
1. Press the relevant "SWING" key to determine
the horizontal or vertical position of the
exhaust fins. Each time the "SWING" key is
pressed, the fins change position by 6
degrees.
2. You can activate the "SWING" function by
pressing the same key for longer. This
causes the exhaust fins to move up and
down automatically.
If the fins are moved to a position which would
influence the cooling or heating effect of the air
conditioning unit, they change their direction of
movement automatically.
REMKO JBW...DC
18

5 Installation instructions for qualified personnel
5.1 Important notes prior to instal-
lation
nTransport the unit in its original packaging as
close as possible to the installation location.
You avoid transport damage by doing so.
nCheck the contents of the packaging for com-
pleteness and check the unit for visible trans-
port damage. Report any damage immediately
to your contractual partner and the shipping
company.
nLift the unit on the corners and not on the
refrigerant or condensate drainage connec-
tions.
nThe refrigerant piping (liquid and suction pipe),
valves and connections must be insulated to
make them vapour diffusion proof. If necessary
also insulate the condensate drainage line.
nSelect an installation location which allows air
to freely flow through the air inlet and outlet
(see section "Minimum clearances")
nDo not install the unit in the immediate vicinity
of devices which generate intensive thermal
radiation. Installation in the vicinity of thermal
radiation reduces the unit output.
nOnly open the shut-off valves on the refrigerant
piping after installation is complete.
nSeal off open refrigerant piping with suitable
caps or adhesive strips to prevent the infiltra-
tion of moisture and never kink or compress
the refrigerant piping.
nAvoid unnecessary bends. This minimises the
pressure loss in the refrigerant piping and
ensures that the compressor oil can flow back
without obstruction.
nMake special preparations regarding the oil
return if the outdoor unit is located above the
indoor unit (see section "Oil return measures").
nAdd refrigerant if the basic length of the refrig-
erant piping exceeds 5 metres. For the quantity
of additional refrigerant, refer to chapter
"Adding refrigerant".
nPerform all electrical wiring in accordance with
applicable DIN and VDE standards.
nEnsure the electrical cables are properly con-
nected to the terminals, otherwise there is a
risk of fire.
nOnly use the fasteners contained in the scope
of delivery with the units.
nUse four supports and the associated hooks to
attach the ceiling cassette (only applies to
ceiling cassettes).
nUse the insulated condensate hose in the
scope of delivery as a junction piece to the
continuing condensate drain. Secure the con-
densate drain with the supplied clamps.
5.2 Wall openings
nA wall opening of at least 70mm diameter and
10mm incline from the inside to the outside
must be created.
nTo prevent damage to the lines, the interior of
the wall opening should be padded or, for
example, lined with PVC pipe (see figure).
nAfter installation has been completed, use a
suitable sealing compound to close off the wall
opening, taking account of fire protection regu-
lations (responsibility of customer). Do not use
cement or lime containing substances!
21 5
3 4
Fig. 15: Wall opening
1: Liquid line
2: Control line
3: Condensate drainage line
4: Suction pipe
5: PVC pipe
5.3 Installation materials
The indoor unit is attached to the wall by a wall
bracket and 4 screws (to be provided by the cus-
tomer).
The outdoor unit is attached by 4 screws and a
wall bracket to the wall or fixed by a floor bracket to
the ground.
19

5.4 Selection of installation
location
Indoor unit
The indoor unit is designed for horizontal wall
installation above doors. However, it can also be
used in the upper wall area (min. 1.75m above the
floor).
Outdoor unit
The outdoor unit is designed for horizontal installa-
tion on a base in outdoor areas. The installation
site must be level, flat and firm. The unit should
also be secured to prevent it from tipping over. The
outdoor unit can be set up outside as well as inside
a building. For external installation, please observe
the following notes to protect the unit from the
influence of the weather.
Rain
For floor or roof set-up, the unit should be installed
with at least 10cm ground clearance. A floor
bracket is available as an optional accessory.
Sun
The condenser on the outdoor unit emits heat.
Exposure to sunlight further increases the temper-
ature of the fins and reduces the heat released by
the finned heat exchanger. The outdoor unit should
be installed on to the north side of the building
whenever possible. If necessary, take measures to
provide sufficient shade (responsibility of cus-
tomer). One possible solution is to build a small
roofed area over the unit. These measures should
not affect the flow of warm outlet air.
Wind
If the unit is being installed in windy areas, ensure
that the warm outlet air is discharged in the pre-
vailing wind direction. If this is not the possible, it
may be necessary to install a windbreak (to be pro-
vided by the customer). Ensure that the windbreak
does not adversely affect the air intake to the unit.
An additional stabilization is recommended. This
can, for example, be realized with ropes or other
structures.
1
Fig. 16: Windbreak
1: Wind
Snow
The unit should be wall-mounted in areas of heavy
snowfall. Installation should be at least 20cm
above the expected level of snow to prevent snow
from entering the outdoor unit. An optional wall
bracket is available as an accessory.
20 cm
1
Fig. 17: Minimum clearance to snow
1: Snow
Installation inside buildings
nEnsure that heat can dissipate adequately
when placing the outdoor unit in cellars, lofts,
adjoining rooms or halls (Fig. 18).
nInstall an additional fan with a rated flow com-
parative to that of the outdoor unit being
installed in the room and which can compen-
sate any additional pressure loss in ventilation
ducts (Fig. 18).
nComply with any regulations and conditions
affecting the statics of the building. If neces-
sary, fit acoustic installation.
REMKO JBW...DC
20