REMKO JBW 260 DC, JBW 350 DC, JBW 350 DC IT, JBW 520 DC IT, JBW 260 DC IT Assembly And Operating Instructions Manual
...
Assembly and operating instructions
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
Read the instructions prior to performing any task!
Read these operating instructions carefully before commissioning / using this device!
These instructions are an integral part of the system and must
always be kept near or on the device.
Subject to modifications; No liability accepted for errors or misprints!
Installation and operating instructions (translation of the original)
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............................................................................................................................ 1
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
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REMKO JBW...DC
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
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1 Safety and
usage instructions
1.1 General safety notes
Carefully read the operating manual before commissioning the units for the first time. It contains
useful tips and notes such as hazard warnings to
prevent personal injury and material damage.
Failure to follow the directions in this manual not
only presents a danger to people, the environment
and the system itself, but will void any claims for
.
liability
Keep this operating manual and the refrigerant
data sheet near to the units.
1.2 Identification of notes
This section provides an overview of all important
safety aspects for proper protection of people and
safe and fault-free operation.The instructions and
safety notes contained within this manual must be
observed in order to prevent accidents, personal
injury and material damage.
Notes attached directly to the units must be
observed in their entirety and be kept in a fully
legible condition.
Safety notes in this manual are indicated by symbols. Safety notes are introduced with signal words
which help to highlight the magnitude of the danger
in question.
DANGER!
CAUTION!
This combination of symbol and signal word
warns of a potentially hazardous situation,
which if not avoided may cause injury or material and environmental damage.
NOTICE!
This combination of symbol and signal word
warns of a potentially hazardous situation,
which if not avoided may cause material and
environmental damage.
This symbol highlights useful tips and recommendations as well as information for efficient
and fault-free operation.
1.3 Personnel qualifications
Personnel responsible for commissioning, operation, maintenance, inspection and installation must
be able to demonstrate that they hold a qualification which proves their ability to undertake the
work.
Contact with live parts poses an immediate
danger of death due to electric shock. Damage
to the insulation or individual components may
pose a danger of death.
DANGER!
This combination of symbol and signal word
warns of a situation in which there is immediate
danger
cause serious injury.
This combination of symbol and signal word
warns of a potentially hazardous situation,
which if not avoided may be fatal or cause
serious injury
, which if not avoided may be fatal or
WARNING!
.
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:
n The failure of important unit functions.
n The failure of prescribed methods of mainte-
nance and repair
n Danger to people on account of electrical and
mechanical effects.
.
1.5 Safety-conscious working
The safety notes contained in this manual, the
existing national regulations concerning accident
prevention as well as any internal company
working, operating and safety regulations must be
observed.
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REMKO JBW...DC
1.6 Safety notes for the operator
The operational safety of the units and components is only assured providing they are used as
intended and in a fully assembled state.
n The units and components may only be set up,
installed and maintained by qualified personnel.
n Protective covers (grille) over moving parts
must not be removed from units that are in
operation.
n Do not operate units or components with
obvious defects or signs of damage.
n Contact with certain unit parts or components
may lead to burns or injury
n The units and components must not be
exposed to any mechanical load, extreme
levels of humidity or extreme temperature.
n Spaces in which refrigerant can leak sufficient
to load and vent. Otherwise there is danger of
suffocation.
n All housing parts and device openings, e.g. air
inlets and outlets, must be free from foreign
objects, fluids or gases.
n The units must be inspected by a service tech-
nician at least once annually. Visual inspections and cleaning may be performed by the
operator when the units are disconnected from
the mains.
.
1.7 Safety notes for installation, maintenance and inspection
n Appropriate hazard prevention measures must
be taken to prevent risks to people when performing installation, repair
cleaning work on the units.
n The setup, connection and operation of the
units and its components must be undertaken
in accordance with the usage and operating
conditions stipulated in this manual and comply
with all applicable regional regulations.
n Local regulations and laws such as Water
Ecology Act must be observed.
n The power supply should be adapted to the
requirements of the units.
n Units may only be mounted at the points pro-
vided for this purpose at the factory. The units
may only be secured or mounted on stable
structures, walls or floors.
n Mobile units must be set up securely on suit-
able surfaces and in an upright position. Stationary units must be permanently installed for
operation.
n The units and components should not be oper-
ated in areas where there is a heightened risk
of damage. Observe the minimum clearances.
, maintenance or
n The units and components must be kept at an
adequate distance from flammable, explosive,
combustible, abrasive and dirty areas or
atmospheres.
n Safety devices must not be altered or
bypassed.
Unauthorised modification
1.8
and changes
Modifications or changes to units and components
are not permitted and may cause malfunctions.
Safety devices may not be modified or bypassed.
Original replacement parts and accessories
authorised by the manufactured ensure safety
use of other parts may invalidate liability for
resulting consequences.
. The
1.9 Intended use
Depending on the model, the units and the additional fittings with which they are equipped are only
intended to be used as an air-conditioner for the
purpose of cooling or heating the air in an
enclosed space.
Any different or additional use is a non-intended
use. The manufacturer/supplier assumes no liability for damages arising from a non-intended use.
The user bears the sole risk in such cases.
Intended use also includes working in accordance
with the operating and installation instructions and
complying with the maintenance requirements.
The threshold values specified in the technical
data must not be exceeded.
1.10 Warranty
For warranty claims to be considered, it is essential
that the ordering party or its representative complete and return the "certificate of warranty" to
REMKO GmbH & Co. KG at the time when the
units are purchased and commissioned.
The warranty conditions are detailed in the "General business and delivery conditions". Furthermore, only the parties to a contract can conclude
special agreements beyond these conditions. In
this case, contact your contractual partner in the
first instance.
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1.11 Transport and packaging
The devices are supplied in a sturdy shipping con-
. Please check the equipment immediately
tainer
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 environmentally friendly materials. Make a valuable contribution to reducing waste and sustaining raw materials. Only dispose of packaging at approved
collection points.
Disposal of equipment and components
Only recyclable materials are used in the manufacture of the devices and components. Help protect
the environment by ensuring that the devices or
components (for example batteries) are not disposed in household waste, but only in accordance
with local regulations and in an environmentally
safe manner
cling specialists or at collection points.
, e.g. using certified firms and recy-
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REMKO JBW...DC
2 Technical data
2.1 Unit data
Series JBW 260 DC JBW 350 DC JBW 520 DC
Operating mode
Nominal cooling output
Energy efficiency ratio SEER
1)
1)
Electrical rated power consumption,
cooling
1)
kW
kW
Electrical rated current consumption,
cooling
Power consumption, annual, QCE
Energy efficiency ratio, cooling
Nominal heat capacity
Energy efficiency ratio SCOP
Electrical rated power consumption,
heating
1)
3)
1)
2)
4)
2)
kWh 149 201 307
kW
kW
Electrical rated current consumption,
heating
Power consumption, annual, QHE
Energy efficiency ratio, heating
2)
3)
2)
kWh 878 1189 1727
Inverter wall-mounted room air conditioner combination
for cooling and heating
2.60 (1.0-3.5) 3.60 (1.1-4.0) 5.10 (3.0-5.8)
6.1 6.1 6.1
0.79 1.10 1.58
A
3.50 4.97 7.20
A++ A++ A++
2.7 (0.8-3.6) 3.6 (1.0-4.3) 5.4 (1.3-6.2)
4.0 4.0 4.0
0.73 1.00 1.58
A
3.30 4.43 6.50
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.
m
3
80 110 160
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
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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
Refrigerant
6)
5)
dB (A) 50 60
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")
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B
C
D
E
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B
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2.2 Unit dimensions
Outdoor units
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
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.
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3 Design and function
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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 compressor precisely matches requirements, and
thereby regulates the nominal temperature with
minimal temperature deviations. This "inverter
technology" results in energy savings over conventional split systems and also reduces noise emissions 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, evaporator fan, controller and condensate tray.
Floor brackets, wall brackets, refrigerant piping and
condensate pumps are available as accessories.
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
Fig. 5: System layout
A: Outdoor area
B: Indoor area
1: Indoor unit
2: Outdoor unit
Fig. 3: Cooling cycle diagram for indoor unit
1: Evaporator
2: Evaporator fan
3: Suction pipe connection
4: Injection pipe connection
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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.
max. 6 m
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REMKO JBW...DC
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 manually operated.
Manual mode
If the infrared remote control is not functioning, you
can switch the unit to automatic mode manually
and switch it of
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 markings). Removing the batteries causes all stored
data to be lost. The remote control will then access
the default settings, which you are free to customise at any time.
f. To do so, press the "Auto" key
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.
Fig. 6: Maximum distance
Alarms are indicated by a code (see chapter
T
roubleshooting and customer service).
Fig. 7: Display on indoor unit
1: Set setpoint/fault indicator
12
1
3
4
19
17 18
20
1
3
4
17
18
19
20
Keys on the remote control
„COOL“ key
Activates the cooling mode of the unit.
aste „HEAT“
T
Activates the heating mode of the unit.
„SWING key(horizontal)“
Activates the horizontal swing mode of the unit.
„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. 8: Keys on the remote control
"ON/OFF" key
This key switches the unit on and of
f. This also
deactivates recently used functions such as the
timer or the "Sleep" mode.
"SPEED" key
Press this key to select the fan speed. The following stages are available:
Automatic (Auto), low (Low), medium (Mid) and
high (High) fan stage.
" ▲ " 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.
Fig. 9: Remote control open
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3
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7
9
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14
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8
10
11
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16
1
2
3
4
5
6
7
8
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REMKO JBW...DC
Extended functionality of the remote control
Fig. 10: Keys on the remote control
" ▲ " 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.
"TURBO" key
Press this key in cooling and heating mode to activate and deactivate the "TURBO" function. The
configured setpoints can be reached more quickly
by using this function.
"HEAL
TH" 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.
"SILENCE" key
"SILENCE" mode is activated/deactivated by
pressing this key. By lowering the fan speed to a
minimum, the noise emissions are reduced significantly.
"ON/OFF" key
This key switches the unit on and of
f. This also
deactivates recently used functions such as the
timer or the "Sleep" mode.
"MODE" key
This key is used to select a mode. Press this key to
change between the following operating modes:
1. Automatic mode (AUT
2. Cooling mode (COOL)
O)
3. Dehumidification mode (DRY)
4. Heating mode (HEAT)
5. Recirculation mode (FAN)
"SPEED" key
Press this key to select the fan speed. The following stages are available:
Automatic (Auto), low (Low), medium (Mid) and
high (High) fan stage.
"SLEEP" key
When you press the "SLEEP" key
, the corresponding 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 temperature.
"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 preselected. If you do not press a key while "H on/
(off)" is flashing, the remote control will reset automatically after 10 seconds. To deactivate the timer,
you must press the "Timer" key again.
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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
3 546
7
8
9
11
12
13
10
"iFEEL" key
Once you press this key
perature probe is active and the "current temperature" appears on the display. This function is suitable for ensuring as consistent a room temperature
as possible in large rooms. The temperature measured 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.
"iCLEAN" key
Press this key to activate the unit’
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.
"DISPLA
This key switches the indoor unit’s LCD display on
and off.
Y" key
, the remote control tem-
s self-clean func-
Infrared sensor
Indicators on the LCD
"Anti-F" (anti-fungus) key
Use this key to activate or deactivate the fan stopping 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.
“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.
"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.
"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.
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 symbols present is only intended to provide a
clearer overview
symbols relevant to the respective functions
appear on the display.
. During operation, only those
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REMKO JBW...DC
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.
1. Press the "MODE" key to select from operating modes "Automatic", "Cooling", "Dehumidification", "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 "F
AN" 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.
In "automatic" mode, the cooling unit automatically 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.
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.
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9
"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 "Dehumidification" 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.
"Timer" mode
Press the "TIMER ON" key to set the "Auto on"
time and the "TIMER OFF" key to set the "Auto of
time for the unit.
Setting the "Auto on" time
1. Press the "TIMER ON" key
. The remote control 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 control 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.
f"
Fig. 12: "Dehumidification" mode
In "Dehumidification" mode, it is not possible to
set the fan speed. This is already controlled
automatically
.
Fig. 13: "Timer" mode
17
8
REMKO JBW...DC
Setting the "Auto off" time
1. Press the "TIMER OFF" key
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 of
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 control transmits the signal to the indoor unit.
Then, after approx. two seconds, the "H"
symbol disappears from the LCD display
the set temperature appears again on the
display.
f" time. Each time the key is
. The remote
, and
Fig. 14: "Sleep" function
– When T
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 temperature in the first two hours by 1°C an hour
the next five hours, the temperature is them kept
constant. Then this function is stopped.
The function maintains the most comfortable temperature while saving energy.
imer mode is selected, the remote
. For
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 airflow 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. Y
ou 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
.
18
5 Installation instructions for qualified personnel
21 5
3 4
5.1 Important notes prior to installation
ransport the unit in its original packaging as
n T
close as possible to the installation location.
You avoid transport damage by doing so.
n Check the contents of the packaging for com-
pleteness and check the unit for visible transport damage. Report any damage immediately
to your contractual partner and the shipping
company.
n Lift the unit on the corners and not on the
refrigerant or condensate drainage connections.
n The 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.
n Select an installation location which allows air
to freely flow through the air inlet and outlet
(see section "Minimum clearances")
n Do 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.
n Only open the shut-off valves on the refrigerant
piping after installation is complete.
n Seal off open refrigerant piping with suitable
caps or adhesive strips to prevent the infiltration of moisture and never kink or compress
the refrigerant piping.
n Avoid unnecessary bends. This minimises the
pressure loss in the refrigerant piping and
ensures that the compressor oil can flow back
without obstruction.
n Make special preparations regarding the oil
return if the outdoor unit is located above the
indoor unit (see section "Oil return measures").
n Add refrigerant if the basic length of the refrig-
erant piping exceeds 5 metres. For the quantity
of additional refrigerant, refer to chapter
"Adding refrigerant".
n Perform all electrical wiring in accordance with
applicable DIN and VDE standards.
n Ensure the electrical cables are properly con-
nected to the terminals, otherwise there is a
risk of fire.
n Only use the fasteners contained in the scope
of delivery with the units.
n Use four supports and the associated hooks to
attach the ceiling cassette (only applies to
ceiling cassettes).
n Use the insulated condensate hose in the
scope of delivery as a junction piece to the
continuing condensate drain. Secure the condensate drain with the supplied clamps.
5.2 Wall openings
n A wall opening of at least 70mm diameter and
10mm incline from the inside to the outside
must be created.
o prevent damage to the lines, the interior of
n T
the wall opening should be padded or, for
example, lined with PVC pipe (see figure).
n After installation has been completed, use a
suitable sealing compound to close off the wall
opening, taking account of fire protection regulations (responsibility of customer). Do not use
cement or lime containing substances!
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 customer).
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
1
20 cm
1
REMKO JBW...DC
5.4 Selection of installation location
Indoor unit
The indoor unit is designed for horizontal wall
installation above doors. However
used in the upper wall area (min. 1.75m above the
floor).
Outdoor unit
The outdoor unit is designed for horizontal installation 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.
, it can also be
Wind
If the unit is being installed in windy areas, ensure
that the warm outlet air is discharged in the prevailing wind direction. If this is not the possible, it
may be necessary to install a windbreak (to be provided 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.
Fig. 16: Windbreak
1: Wind
Sun
The condenser on the outdoor unit emits heat.
Exposure to sunlight further increases the temperature 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 customer). One possible solution is to build a small
roofed area over the unit. These measures should
not affect the flow of warm outlet air.
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
Fig. 17: Minimum clearance to snow
1: Snow
Installation inside buildings
n Ensure that heat can dissipate adequately
when placing the outdoor unit in cellars, lofts,
adjoining rooms or halls (
Fig. 18).
.
n Install an additional fan with a rated flow com-
parative to that of the outdoor unit being
installed in the room and which can compensate any additional pressure loss in ventilation
ducts (Fig. 18).
n Comply with any regulations and conditions
fecting the statics of the building. If neces-
af
sary, fit acoustic installation.
20
2
1
K
3
W
3
Fig. 18: Installation inside buildings
K: Cold fresh air
W: Warm air
1: Outdoor unit
2: Additional fan
3: Air shaft
21
2
1
2
1
A
B
C
D
E
E
C
A
B
F
IT AT
REMKO JBW...DC
5.5 Minimum clearances
Observe the minimum clearances to allow access for maintenance and repair work and facilitate optimum air
distribution.
Fig. 19: Minimum clearances of the indoor unit and outdoor unit
AT: Outdoor unit
IT: Indoor unit
1: Air inlet
2: Air outlet
Indoor units Outdoor units
Measure-
ments (mm)
A 120 150
B 1,500 700
C 120 400
D - 150
E 120 200
F 1700 -
JBW 260 DC IT-520 DC IT JBW 260 DC AT-520 DC AT
22
5.6 Oil return measures
2
1
A
B
3
A
D
C
B
1
2
If the outdoor unit is installed at a higher level than the indoor unit, suitable oil return measures must be
taken. Usually
, an oil pump bend is installed for every 2.5 metres of height difference.
Fig. 20: Oil return measures
A: Outdoor unit / B: Indoor unit
1: One oil pump bend in suction pipe to outdoor unit
every 5 metres of height dif
2: Radius: 50 mm / 3: Max. 5 m
ference
5.7 Connection variants for the indoor unit
The following connection variants can be used for the refrigerant, condensate and control lines:
Fig. 21: Connection variants
A: Outlet on the wall, right
B: Outlet through the wall, right
C: Infeed of the refrigerant piping through the wall,
left
Please note that the refrigerant piping ends on the left side if the unit is viewed from the front. For a
straightforward connection, route it into the indoor unit from the left side.
D: Infeed of the refrigerant piping at the wall, left
1: Unit-side refrigerant piping (bendable)
2: Unit-side condensate drainage hose
23
A
B
D
F
E
C
G
H
REMKO JBW...DC
5.8 Wall bracket for the indoor unit
Fig. 22: Wall bracket mounting points JBW 260 DC-520 DC (rear view)
Unit type / dimensions in
mm
JBW 260 DC-350 DC 420 350 90 60 60 225 615 120
JBW 520 DC 495 455 70 50 120 325 745 150
All dimensions in mm. In each case the diameter of the pipe break-through is Ø
The wall bracket for the units must be attached with suitable screws and anchors.
A B C D E F G H
65 mm
6 Installation
Installation of the indoor unit
6.1
The indoor unit is attached by means of a wall
bracket, taking into consideration the air outlet side
located in the lower part.
1. Mark the mounting points on the structurally
permissible building sections according to the
dimensions of the wall bracket.
2. If necessary
of the housing.
3. Connect the refrigerant piping, electrical
cables and condensate drainage line to the
indoor unit as described below
4. Hang the indoor unit onto the wall bracket by
tilting it back slightly and by pressing the
bottom part of the unit against the bracket.
5. Check again that the unit is level. (
, remove the break out opening
.
Fig. 23)
Fig. 23: Horizontal positioning
The wall bracket for the units must be attached
with suitable screws and anchors.
24
6.2 Connecting the refrigerant
piping
The refrigerant piping is connected (responsibility
of the customer) on the back side of the units.
Please note that a flare connection is only permissible outside the enclosed room. If this is not possible on site, the connection of the indoor unit must
be established as a permanent connection (e.g.
soldered).
It may be necessary to fit a reducer or flared
adapter to the indoor unit. These fittings are
included with the indoor unit as an accessory kit.
Once installed, the connections should be insulated to make them vapour dif
NOTICE!
Installation should only be performed by authorised specialists.
NOTICE!
The unit is factory filled with dry nitrogen for
leak testing purposes. The pressurised nitrogen
is released when the union nuts are undone.
NOTICE!
Use only tools which are approved for use in an
HVAC environment. (z. B.: bending pliers, pipe/
tubing cutters, de-burrers and flaring tools). Do
not cut refrigerant pipes with a saw.
NOTICE!
All work must be carried out in a way that prevents dirt, particles, water etc. from entering,
refrigerant lines!
fusion proof.
The following instructions describe the installation
of the cooling cycle and the assembly of the indoor
unit and the outdoor unit.
1. The required pipe diameters are given in the
table "T
2. Install the indoor unit and connect the refrigerant piping as described in the operating
manual for the indoor unit.
3. Use the wall or floor brackets to fit the outdoor unit against structural parts approved to
support the static load (refer to the installation instructions for the brackets).
4. Ensure that structure-borne sound is not
transferred to parts of the building. Use vibration dampers to reduce the ef
ture-borne sound!
5. Lay the refrigerant piping from the indoor unit
to the outdoor unit. Ensure that the fastenings are adequate and if necessary
appropriate oil return measures!
6. Remove the factory-fitted protective caps and
union nuts on the connections. These should
be used later in the installation process.
7. Before flanging the refrigerant piping, ensure
that the union nut is fitted on the pipe.
8. Prepare the laid refrigerant pipings as shown
below (
9. V
(Fig. 26).
10. First connect and hand-tighten the refrigerant
piping to ensure it is correctly seated.
11. Then tighten the fittings with 2 appropriatelysized open-ended spanners. Use one
spanner to counter the force when tightening
the fitting (Fig. 27).
12. Use insulation hoses which are designed for
this temperature range and are dif
proof.
13. Observe the permitted bending radius for the
refrigerant piping during installation. Never
bend a pipe twice in the same place. Brittleness and cracking can result.
14. Apply appropriate heat insulation to the
installed refrigerant piping, including connector
15. T
for all subsequent refrigerant piping.
echnical data".
fects of struc-
, take
Fig. 24 and Fig. 25).
erify that the shape of the flange is correct
fusion
.
ake the same action at the shut-off valves
25
2
1
1
REMKO JBW...DC
Label the refrigerant piping (injection and suction pipes) as well as the associated electrical
control lines of each interior unit with a letter
Only connect the lines to their associated connections.
NOTICE!
.
Always pay attention to the af
electrical lines and refrigerant piping! The connections of the individual circuits must not be
mixed up. Mixing up the assignment of control
lines and refrigerant piping can have fatal consequences (compressor damage)!
Commissioning of the individual circuits must
be carried out successively.
filiation of the
Fig. 25: Flanging the refrigerant piping
1: Flanging tool
Fig. 24: Deburring the refrigerant piping
1: Refrigerant piping
2: Deburrer
Fig. 26: Correct flange shape
26
2
1
Fig. 27: Tightening the fitting
1: Tighten with the first open-ended spanner
2: Counter with the second open-ended spanner
Pipe dimension in
inches
1/4" 15-20
Tightening torque in Nm
6.4 Leak testing
Once all the connections have been made, the
pressure gauge station is attached to the Schrader
valve as follows (if fitted):
red = small valve = high pressure
blue = large valve = suction pressure
Once the connection has been made successfully
the leak test is carried out with dry nitrogen.
Leak testing involves spraying a leak detection
spray onto the connections. If bubbles are visible,
the connections have not been made properly. In
that case, tighten the connection or, if necessary,
create a new flange.
After completing a successful leak test, the excess
pressure in the refrigerant piping is removed and a
vacuum pump with an absolute final partial pressure of min. 10 mbar is used to remove all of the
air and empty the pipes. Any moisture present in
the pipes will also be removed.
NOTICE!
A vacuum of at least 20 mbar must be produced!
,
3/8" 33-40
1/2" 50-60
5/8" 65-75
3/4" 95-105
6.3 Additional notes on connecting the refrigerant piping
n When combining the outdoor unit with some
indoor units, the procedure for connecting the
refrigerant piping may dif
vided reducer or expansion fittings to the
indoor unit.
n If the basic length of the connecting line
exceeds 5m, add refrigerant when commissioning the system for the first time (see
chapter "Adding refrigerant").
fer. Install the pro-
The time required to generate the vacuum is
dependent on the final pressure pipe volume of the
indoor units and the length of the refrigerant piping.
However
minutes. Once any foreign gases and humidity
have been completely extracted from the system,
the valves on the pressure gauge station are
closed and the valves on the outdoor unit are
opened as described in the "Commissioning" section.
, the process will take at least 60
27
3
2
4
9
5 5
11
100
6
8
7
10 10
12 12
1
REMKO JBW...DC
6.5 Adding refrigerant
The units contain a basic quantity of refrigerant. In
addition, an additional amount of refrigerant must
be added for refrigerant piping lengths exceeding 5
metres per circuit. Refer to the following chart:
Up to and
incl. 5m
JBW 260 DC
JBW 350 DC 20 g/m
JBW 520 DC 30 g/m
CAUTION!
W
ear protective clothing when handling refrig-
erant.
DANGER!
0 g/m
From 5m to
max. length
20 g/m
7 Condensate drainage
connection and safe
drainage
Only refrigerant in a liquid state may be used to
fill the cooling cycle!
NOTICE!
Check the overheating to determine the refrigerant fill quantity.
NOTICE!
The escape of refrigerant contributes to climatic
change. In the event of escape, refrigerant with
a low greenhouse potential has a lesser impact
on global warming than those with a high
greenhouse potential. This device contains
refrigerant with a greenhouse potential of 2088.
That means the escape of 1 kg of this refrigerant has an ef
2088 times greater than 1 kg CO2, based on
100 years. Do not conduct any work on the
refrigerant circuit or dismantle the device always enlist the help of qualified experts.
fect on global warming that is
Fig. 28: Condensate drainage, seepage of condensate and strip foundation (cross-section)
1: Outdoor unit
2: Leg
3: Condensate collection tray
4: Floor bracket
5: Reinforced strip foundation
HxWxD = 300x200x800 mm
6: Gravel layer for seepage
7: Condensate drainage heating
8: Drainage channel
9: Conduit for refrigerant piping and electrical
connecting line (temperature-resistant up to at
least 60°C)
10: Frost line
11: Drainage pipe
12: Soil
28
B
B
A
D
C
11
1
5
5
8
1
9
3
Fig. 29: Dimensions for the strip foundation (bird's
min. 2%
eye view)
For the designations of 1,3,5,8,9 and 11, please
refer to the legend for the Fig. 28
dimensioning of the strip foundation (in mm)
Dimension
JBW 260DCJBW 350DCJBW 520
DC
A 800
B 200
C 539 546
D 280 316
Fig. 30: Condensate drainage connection - Indoor
unit
Safe drainage in the event of leakages
The REMKO oil separator OA 2.2 fulfils the following list of requirements from regional regulations and laws.
NOTICE!
Local regulations or environmental laws, for
example the German W
ater Resource Law
(WHG), can require suitable precautions to protect against uncontrolled draining in case of
leakage to provide for safe disposal of escaping
refrigerator oil or hazardous media.
Condensate drainage connection
If the temperature falls below the dew point, condensation will form on the finned condenser during
heating mode.
A condensate tray should be installed on the
underside of the unit to drain any condensate.
n The condensate drainage line should have an
NOTICE!
If condensate is removed via a duct in accordance with DIN EN 1717, ensure that any microbiological contamination present on the wastewater side (bacteria, fungi, viruses) cannot
enter the unit connected to it.
incline of min. 2%. This is the responsibility of
the customer
. If necessary, fit vapour-diffusion-
proof insulation.
n When operating the unit at outside tempera-
tures below 4 °C, ensure the condensate
drainage line is laid to protect it against frost.
The lower part of the housing and condensate
tray is also to be kept frost free in order to
ensure permanent draining of the condensate.
If necessary, fit a pipe heater.
n Following installation, check that the conden-
sate run off is unobstructed and ensure that the
line is durably leak tight.
29
2
1
4
3
1
REMKO JBW...DC
8 Electrical wiring
8.1 General notes
A protected power supply cable is to be connected
to the indoor unit and a five-core control line to the
outdoor unit respectively
DANGER!
All electrical installation work is to be performed
by specialist companies. Disconnect the power
supply when connecting the electrical terminals.
WARNING!
All electric lines are in accordance VDE regulations to dimension and to lay
NOTICE!
The electrical connection for the units must be
made at a separate feedpoint with a residual
current device in accordance with local regulations and should be laid out by an electrician.
.
.
8.2 Connecting the indoor unit
e recommend that a mains/repair switch be
n W
installed near the outdoor unit.
n The terminal blocks for making the connections
are located at the rear of the unit. When the
unit is installed, measurements can be made
from the front by removing the cover.
n If a condensate pump, which is available as an
accessory, is used in conjunction with the unit,
refer to the electrical wiring diagram (Fig. 34).
Make the connection as follows:
1. Choose the power supply cross-section in
accordance with the specifications!
2. Open the air inlet grill.
3. Remove the covers on the right-hand side
(Fig. 31).
4. Connect the customer-laid power supply and
control line to the terminals (
also the “Electrical wiring diagram” (Fig. 33).
5. Re-assemble the unit.
Fig. 31). See
e recommend using shielded wires for the
W
control lines.
Check all plugged and clamped terminals to
verify that they are seated correctly and make
permanent contact. T
ighten as required.
Fig. 31: Connecting the indoor unit
1: Cover
2: Strain relief
3: Terminal block for the power supply and control
line
4: Control line to outdoor unit
30
BA
230V/1~/50 Hz
L N S L N S PE PE
2
1
8.3 Outdoor unit connection
Proceed as follows to connect the line:
1. Remove the side-panel cover
2. Connect the lines as shown on the electrical
wiring diagram.
.
8.4 Electrical wiring diagram
Connection JBW 260 DC-520 DC
3. Fix the line in the strain relief and re-
assemble the unit.
Fig. 32: Outdoor unit connection
Fig. 33: Electrical wiring diagram
A: Outdoor unit JBW 260 DC AT-520 DC AT
B: Indoor unit JBW 260 DC IT-520 DC IT
1: Power supply
2: Power supply/control line to outdoor unit
NOTICE!
The indoor unit is delivered with a Schuko test plug. For permanent installations, this must be removed by
a specialist company!
31
L N PE
L N PE
L N S
L
N
S
L
N
WH
BK
PE
PE
B
A
C
1
2
3
REMKO JBW...DC
Connection of optional condensate pump KP 6 / KP 8
Fig. 34: Electrical wiring diagram
A: Outdoor unit
B: Indoor unit
C: Condensate pump KP 6 / KP 8
1: Power supply
2: Condensate pump supply
3: Condensate pump fault contact
BK: black
WH: white
32
8.5 Electrical drawings
Force Switch
M1
5
M2
M4 M3
FUSE
3.15A 250V
o2o1
1(L) 2(N)
braun
blau
schwarz
g/g
S
g/g
blau
2
3
4 5
1
B
6
A
7 8
9
10 11
Indoor units JBW 260 DC IT-520 DC IT
Fig. 35: Electrical drawings
A: Power supply 230V/1~/50 Hz
B: Connection to the outdoor unit
1: DC evaporator fan motor
2: AC evaporator fan motor
3: WiFi module (not available)
4: Display board
5: Swing motor, vertical
6: Swing motor, horizontal
7: Temperature probe, indoor air
8: Temperature probe, evaporator
9: Transformer
10: Ion generator (not available)
11: Duster (not available)
33
AC-M
M1 M2
2[4]
5
DC-M
M3
6
ELV
4WV
M4
OLP
e1e2e3e4
EXHAUSTPIPEROOMSUCTION U V WL-IL-OGNDAC-LAC-NS
1(L) 2(N)4(S)
U (R) rot
V (S) blau
W (T) schwarz
braun
blau
schwarz
g/g
2
A
1
3
4
5
6 7 8 9
10
11
REMKO JBW...DC
Outdoor units JBW 260 DC AT-520 DC AT
Fig. 36: Electrical drawings
A: Connection to indoor unit
1: AC evaporator fan motor
2: DC evaporator fan motor
3: 4-way valve
4: Drainage heater
5: Injection valve, electronic
6: Reactor
7: Temperature probe, suction pipe
8: Temperature probe for condenser air inlet
9: Condenser pipe placement probe
10: Compressor
34
9 Before commissioning
After leak testing has been successfully completed, connect the vacuum pump via the pressure
gauge station to the valve connections on the outdoor unit (see chapter "Leak testing") and create a
vacuum.
Perform the following checks prior to putting the
unit into operation for the first time and after any
work on the cooling cycle. Record the results in the
commissioning report:
n Check all refrigerant piping and valves for leak-
tightness using leak detection spray or soapy
water
.
n Check the refrigerant piping and insulation for
damage.
n Check the electrical connection between the
indoor unit and the outdoor unit for correct
polarity.
n Check that all fastenings, mountings, etc. are
firm and at the correct level.
10 Commissioning
NOTICE!
Commissioning should only be performed by
specially trained personnel and documented
after the certificate has been issued. Observe
the operating manuals for the indoor unit and
outdoor unit when commissioning the entire
system.
Once all the components have been connected
and tested, the system can be put into operation. A
functional check should be performed to verify its
correct function and identify any unusual operating
behaviour prior to handing it over to the operator
NOTICE!
Check that the shut-of
are tight after carrying out any work on the
cooling cycle. Use appropriate sealant products
as necessary.
f valves and valve caps
.
Functional checks and test run
Check the following points:
n Leak-tightness of the refrigerant piping.
n Compressor and fan running smoothly.
n In cooling mode, cold air output by the indoor
unit, and warm air output by the outdoor unit.
n Function test of the indoor unit and all program
sequences.
n Check of the surface temperature of the suc-
tion pipe and that the vaporiser is not overheating. To measure the temperature, hold the
thermometer to the suction pipe and subtract
the boiling point temperature reading on the
pressure gauge from the measured temperature.
n Record the measured temperatures in the
commissioning report.
35
REMKO JBW...DC
Function test of the cooling and heating modes
1. Remove the protective caps from the valves.
2. Start the commissioning procedure by briefly
opening the shut-of
unit until the pressure gauge indicates a
pressure of approx. 2 bar.
3. Check all connections for leaks with leak
detection spray and suitable leak detectors.
4. If no leaks are found, fully open the shut-of
valves by turning them anti-clockwise using a
spanner. If leaks are found, remedy the faulty
connection. It is imperative that the vacuum
creation and drying steps are repeated.
5. Activate the main circuit breaker or fuse (to
be provided by the customer).
6. Press the test knob on the outdoor unit and
wait until a frequency of min. 50 Hz is established.
7. Use the remote control to switch on the unit
and select the cooling mode, maximum fan
speed and lowest target temperature.
8. Check the overheating, outside, inside, outlet
and vaporisation temperatures and record
the measured values in the commissioning
report. Check the correct function and settings of all regulation, control and safety
devices.
9. Check the unit control system using the functions described in the chapter "Operation".
T
imer, temperature setting, fan speeds and
switching to ventilation or dehumidification
mode.
10. Check the correct function of the condensate
drainage by pouring distilled water into the
condensate tray
ommended for pouring the water into the
condensation tray.
11. Switch the indoor unit to heating mode.
12. During the test run, check the functionality of
all of the previously described safety devices.
13. Record the measured values into the commissioning report and familiarise the operator
with the system.
14. Remove the pressure gauge. Check that
seals have been fitted in the sealing caps.
15. Re-install all disassembled parts.
f valves on the outdoor
f
. A bottle with a spout is rec-
36
11 Trouble-shooting, fault analysis and customer service
11.1 Troubleshooting and customer service
The unit and components are manufactured using state-of-the-art production methods and tested several
times to verify that they function correctly
detailed in the list below. For systems with an indoor unit and outdoor unit, refer to the chapter "Troubleshooting and customer service" in both operating manuals. Please inform your dealer if the unit is still not
working correctly after all function checks have been performed!
Operational malfunctions
Malfunction Possible causes Checks Remedial measures
. However, if malfunctions do occur, please check the functions as
The unit does not start or
switches itself of
f
Power failure, undervoltage, defective mains
fuse / main switch in
OFF position
Damaged power supply Does all other elec.
Wait time after switching
on is too short
Temperature outside
operating range
Electrical surges caused
by thunderstorms
Malfunction of the
external condensate
pump
Transmission distance
too far / receiver af
by interference
fected
Does all other electrical
equipment function correctly?
equipment function correctly?
Have approx. 5 minutes
elapsed since the
restart?
Are the fans in the indoor
unit and outdoor unit
working correctly?
Have there been lightning strikes in the area
recently?
Has the pump shut down
due to a malfunction?
Does the indoor unit
beep when pressing a
key?
Check the voltage and if
necessary
come back on
Repair by specialist firm
Schedule longer wait
times
Observe temperature
ranges of indoor unit and
outdoor unit
Switch off the mains
breaker and switch it
back on. Have it
inspected by a specialist
Check and if necessary
clean the pump
Reduce the distance to
less than 6 m or change
position
, wait for it to
Remote control is faulty Is the unit running in
manual mode?
Receiver or transmitter
unit exposed to exces-
The unit does not
respond to the remote
control
37
sive solar radiation
Electromagnetic fields
are interfering with transmission
Key on remote control
stuck / dual key operation
Batteries in remote control are flat
Does it function correctly
in the shade?
Does it function after
removing potential
sources of interference?
Does the "Transmitting"
symbol appear on the
display?
Have new batteries been
inserted? Is the display
incomplete?
Replace the remote control
Place the receiver and/or
transmitter unit in the
shade
Signal is not transmitted
when interference
sources are operational
Release the key / only
press one key
Insert new batteries
REMKO JBW...DC
Operational malfunctions (continued)
Malfunction Possible causes Checks Remedial measures
The unit is running but
only provides reduced or
no cooling or heating
capacity
Filter is dirty / air inlet /
outlet opening is blocked
by debris
Windows and doors
open. Heating / cooling
load has increased
Neither cooling nor
heating mode has been
set
Fins on outdoor unit
blocked by foreign
objects
Leaking cooling cycle Are there signs of frost
Outdoor unit iced up Check outdoor unit. Has
Drainage pipe on collection container clogged /
damaged
Have the filters been
cleaned?
Have structural / usage
modifications been
made?
Does the cooling symbol
appear on the display?
Does the fan of the outdoor unit work? Are the
exchanger fins unobstructed?
on the exchanger fins of
the indoor unit?
the cassette probe on
the outdoor unit been
correctly positioned?
Can the condensate
drain of
obstruction?
f without any
Clean the filters
Close windows and
doors / install additional
units
Correct the settings for
the unit
Check the fan or winter
fan speed control,
reduce the air resistance
Repair by specialist
De-ice and fit the probe
at the point where the
most ice forms
Clean the drainage pipe
and collection container
Condensate discharge
on unit
Faulty external condensate pump or float
Condensate has not
drained away and has
collected in the condensate drainage line
Condensate does not
drain of
Float is stuck or jammed
due to excessive dirt
f
Is the collection tray full
of water and the pump
not running?
Is there an incline on the
condensate drainage line
and is it clear?
Are the condensate
drainage lines unblocked
and is there a steady
incline? Are the condensate pump and liquid
level switch functioning
correctly?
Are the LEDs on the
receiver unit of the
indoor unit flashing?
Call out a specialist to
replace the pump
Route the condensate
drainage line with an
incline and clean it
Route the condensate
drainage line with an
incline and clean it. If the
liquid level switch or the
condensate pump is
defective, have them
replaced
Should be cleaned by
specialist firm
38
Fault indicated on indoor unit
Display Cause Required action
E1
E2
E3
E4
E5 / 5E
F1
F2
F3 Compressor fault
Indoor unit probe air
circulation defective
Outdoor unit register
probe defective
Indoor unit register
probe defective
Indoor unit fan
motor fault
Communication
error between
indoor unit and outdoor unit
Indoor unit circuit
board fault
Outdoor unit circuit
board fault
Check that the probe is positioned correctly and if it is mounted on the circuit board correctly
it.
Check that the probe is positioned correctly and if it is mounted on the circuit board correctly
it.
Check that the probe is positioned correctly and if it is mounted on the circuit board correctly
it.
Check the electrical wiring of the motor. Does the fan cylinder rotate?
Replace the motor
Has the communication line between the outdoor unit and indoor unit
been correctly implemented? Contact specialist dealer
Switch off the power supply to the unit and switch it on again. Is the fault
still present? Contact specialist company
Switch off the power supply to the unit and switch it on again. Is the fault
still present? Contact specialist company
Is the compressor faulty? Check the winding resistances. Has the electrical wiring to the circuit board been correctly implemented?
. Check the probe’s resistor and, if necessary, replace
. Check the probe’s resistor and, if necessary, replace
. Check the probe’s resistor and, if necessary, replace
.
.
.
.
Exhaust air temper-
F4
F5
F6
F7
F8
F9
F0 Fan fault
FA
ature probe defective
Compressor overtemperature has
tripped
Outdoor unit air circulation probe
defective
Overvoltage or
undervoltage protection has tripped
Outdoor unit communication error
EEPROM error, outdoor unit
Outdoor unit suction
pipe probe defective
Check that the probe is positioned correctly and if it is mounted on the circuit board correctly
it.
Check the hot gas temperature at the compressor outlet. Is there a lack of
refrigerant?
Check that the probe is positioned correctly and if it is mounted on the circuit board correctly
it.
Check the voltage of the power supply
Check wiring, contact specialist company
Switch off the power supply to the unit for one minute, contact specialist
company
Check the electrical wiring of the motor. Does the fan blade rotate?
Replace the motor
Check that the probe is positioned correctly and if it is mounted on the circuit board correctly
it.
. Check the probe’s resistor and, if necessary, replace
. Check the probe’s resistor and, if necessary, replace
.
. Check the probe’s resistor and, if necessary, replace
39
NO
YES
NO
YES
NO
NO
YES
NO
YES
NO
YES
REMKO JBW...DC
11.2 Indoor unit fault analysis
Faults E1, E2, E3, E6, F4 and FA: Probe fault
Check the connection of the respective probe to
the circuit board. Are these correctly imple-
mented?
Replace the respective control board.
Fault F3: Overcurrent protection on the compressor
Establish a proper connection.
Check all electrical connections. Are these cor-
rectly implemented?
Check the compressor windings. Are they OK?
Replace the compressor.
Fault F5: Compressor overtemperature has tripped
Check the indoor unit and outdoor unit heat
exchangers for cleanliness. Is the air exchange
guaranteed?
Switch the unit off for 10 minutes. Check
whether the unit starts up again normally
.
Replace the connections.
Clean the respective heat exchanger.
Check all electrical connections and the heat
gas probe.
Check the fill level of the refrigerant. Is this cor-
rect?
Refrigerant cannot circulate. Possibly due to
internal contamination or kinked lines.
Check the unit for leaks and fill with new refrig-
erant.
40
Fault F7: The outdoor unit overvoltage or undervoltage protection has tripped
NO
YES
NO
YES
YES
NO
YES
Check whether the power supply is present and
correct. Is this normal?
Check all electrical connections. Are they OK?
Replace the outdoor unit motherboard.
Fault F9: EEPROM error
Switch the unit off for 5 seconds. Is the fault still
shown on the display?
Is the EEPROM chip properly seated on the cir-
cuit board?
Switch the supply and try again as soon as this
is normal again.
Correct the electrical connections.
Insert the chip properly.
Replace the outdoor unit circuit board.
41
REMKO JBW...DC
12 Care and maintenance
Regular care and observation of some basic points
will ensure trouble-free operation and a long
service life.
DANGER!
Prior to performing any work, ensure the equipment is disconnected from the voltage supply
and secured to prevent accidental switch-on!
Care
n Ensure the unit is protected against dirt, mould
and other deposits.
n Only clean the unit using a damp cloth. Do not
use any caustic, abrasive or solvent-based
cleaning products. Do not use a jet of water.
n Clean the fins on the unit prior to long shut-
down periods.
Maintenance
n It is recommended that you take out a mainte-
nance contract with an annual service from an
appropriate specialist firm.
This enables you to ensure the operational reliability of the plant at all times!
NOTICE!
Statutory regulations require an annual leak test
for the cooling cycle dependant on the refrigerant quantity
the work performed is to be carried out by specialist technicians.
. Inspection and documentation of
Type of task
Checks/maintenance/inspection
General
Check voltage and current
Check function of compressor/fans
Dirt on condenser/evaporator
Check the refrigerant volume
Check condensate drainage
Check insulation
Check moving parts
Sealing test for cooling cycle
1)
see note
Commis-
sioning
l
l
l
l l
l
l
l
l
l
Monthly Half-
yearly
l
l
Yearly
l
l
l
l
l
1)
l
42
Cleaning the housing
1. Disconnect the power supply to the unit.
2. Open and fold the air inlet grill on the front
side upwards.
3. Clean the grill and cover with a soft, damp
cloth.
4. Switch the power supply back on.
Air filter for indoor unit
Clean the air filter at intervals of no more than 2
weeks. Reduce this interval if the air is especially
dirty
.
Cleaning the filter
1. Disconnect the power supply to the unit.
2. Open the front side of the unit by folding the
grill upwards and allowing it to engage
(Fig. 37).
3. Raise the filter and pull it out in a downwards
direction (
4. Clean the filter with a commercially available
vacuum cleaner (
dirty side so it is facing upwards.
5. Dirt can also be removed by carefully
cleaning with lukewarm water and mild
cleaning agents (
should be face down.
6. If water is used, let the filter dry out properly
in the air before fitting it back into the unit.
Fig. 37).
Fig. 38). To do so, turn the
Fig. 39). The dirty side
Fig. 37: Folding the grill upwards
Fig. 38: Cleaning with a vacuum cleaner
7. Carefully insert the filter
locates correctly.
8. Close the front side as described above in
reverse order
9. Switch the power supply back on.
10. Switch the unit back on.
Cleaning the condensate pump (accessories)
The indoor unit may contain an optional integrated
or separate condensate pump, which pumps out
any accumulated condensate into higher positioned drains.
Observe the care and maintenance instructions in
the separate operating manual.
.
. Ensure that it
Fig. 39: Cleaning with lukewarm water
43
REMKO JBW...DC
13 Shutdown
Temporary shutdown
1. Let the indoor unit run for 2 to 3 hours in
recirculation mode, or in cooling mode at
maximum temperature, to extract any
residual humidity from the unit.
2. Shut down the system using the remote control.
3. Switch of
unit.
4. Cover the unit as far as possible with plastic
foil in order to protect it from the influences of
weather
Permanent shutdown
Ensure that units and components are disposed of
in accordance with local regulations, e.g. through
authorised disposal and recycling specialists or at
collection points.
REMKO GmbH & Co. KG or your contractual
partner will be pleased to provide a list of certified
firms in your area.
f the electrical power supply to the
.
44
14 Exploded view and spare parts lists
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
17
DISPLAY
TIMER
SWING
ELE.H
ECO
TURBO
C
H
ON
LRSWING
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
SPOT
iFEEL
iCLEAN
Anti-F
SLEEP
SILENCE
TURBO
HEALTH
SPEED
ON/OFF
MODE
14.1 Exploded view - Indoor unit
Fig. 40: Exploded view of the unit JBW 260 DC IT-520 DC IT
We reserve the right to modify the dimensions and design as part of the ongoing technical development
process.
45
REMKO JBW...DC
14.2 Spare parts list - Indoor unit
Please contact REMKO GmbH & Co. KG directly to order spare parts. All of the spare parts numbers for your
unit can be found in the download area at www
No. Designation JBW 260 DCITJBW 350 DCITJBW 520 DC
1 Unit trim
2 Housing front
3 Air filter
4 Display board
5 Trim
6 Side section, housing, left
7 Side section, housing, right
.remko.de
IT
8 Air outlet fins, horizontal
9 Air outlet fins, vertical
10 Evaporator
11 Fan wheel
12 Rubber mount fan rotor
13 Housing rear wall including condensate tray
14 Fan motor
15 Swing motor
16 Wall bracket
17 IR remote control
Spare parts not illustrated
Control board On request by providing the serial number
To ensure the correct delivery of spare parts, please always provide the unit type with its corresponding
serial number (see name plate).
On request by providing the serial number
46
14.3 Exploded view of the outdoor unit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Fig. 41: Exploded view of the unit JBW 260 DC AT-520 DC AT
We reserve the right to modify the dimensions and design as part of the ongoing technical development
process.
47
REMKO JBW...DC
14.4 Spare parts list - Outdoor unit
Please contact REMKO GmbH & Co. KG directly to order spare parts. All of the spare parts numbers for your
unit can be found in the download area at www
No. Designation JBW 260 DC AT JBW 350 DC AT JBW 520 DC AT
1 Protection grid, front plate
2 Front plate
3 Fan blade, condenser
4 Fan motor, condenser
5 Side section, housing, left
6 Reactor
7 Partitioning panel
8 Cover panel
.remko.de
9 Condenser
10 Compressor, cpl.
11 Base plate
12 Control board
13 4-way valve
14 Shut-off valve, injection pipe
15 Shut-off valve, suction pipe
16 Shut-off valve mounting plate
17 Plastic covering, terminal block
18 Side section, housing, right
Spare parts not illustrated
Crankcase heating
Condensate tray heating
To ensure the correct delivery of spare parts, please always provide the unit type with its corresponding
serial number (see name plate).
On request by providing the serial number
On request by providing the serial number
48
15 Index
A
Assembly
Strip foundation ...................... 28
C
Care and maintenance ................... 42
Cleaning
Air filter for indoor unit ................. 43
Condensate pump .................... 43
Housing ............................ 43
Condensate drainage connection and safe
drainage .............................. 28
Condensate pump, electrical wiring diagram ... 32
Connection variants ..................... 23
Customer service ....................... 37
D
Disposal of equipment .....................7
E
Electrical drawings ................... 33
Electrical wiring ......................... 30
Electrical wiring diagram .................. 31
Electrical wiring diagram, condensate pump ... 32
Environmental protection ...................7
Exploded view of the unit .............. 45, 47
, 34
F
Fault indicated on indoor unit .............. 39
Function test of the cooling and heating modes 36
Functional checks ....................... 35
I
Infrared remote control ................... 12
Installation location, selection .............. 20
Installation materials ..................... 19
Intended use ............................ 6
K
Keys on the remote control ............. 13, 14
M
Maintenance ........................... 42
Malfunctions
Checks .............................37
Possible causes ...................... 37
Remedial measures ................... 37
Manual mode .......................... 12
Minimum clearances ..................... 22
O
Oil return measures ......................23
Ordering spare parts .................. 46, 48
P
Propellant in accordance with Kyoto Protocol ... 9
R
Remote control
Keys ............................13
, 14
S
Safe drainage in the event of leakages ....... 29
Safety
Dangers of failure to observe the safety
notes ............................... 5
General ............................. 5
Identification of notes ................... 5
Notes for inspection .................... 6
Notes for installation ....................6
Notes for maintenance .................. 6
Personnel qualifications ................. 5
Safety notes for the operator ............. 6
Safety-conscious working ................5
Unauthorised modification ...............6
Unauthorised replacement part manufacture . 6
Selection of installation location ............ 20
Shutdown
Permanent .......................... 44
Temporary .......................... 44
Spare parts list ...................... 46, 48
T
Test run ............................... 35
Troubleshooting and customer service ....... 37
U
Unit installation ......................... 24
W
Wall opening ........................... 19
Warranty ............................... 6
49
REMKO JBW...DC
50
Consulting
Thanks to intensive training,
our consultants are always
completely up-to-date in terms
of technical knowledge. This has
given us the reputation of being
more than just an excellent,
reliable supplier:
REMKO, a partner
helping you find solutions to
your problems.
Distribution
REMKO offers not just a well
established sales network both
nationally and internationally, but
also has exceptionally highlyqualified sales specialists.
REMKO field staff are more than
just sales representatives: above
all, they must act as advisers to
our customers in air conditioning
and heating technology.
SFlbCustomer Service
Our equipment operates
precisely and reliably. However,
in the event of a fault, REMKO
customer service is quickly at
the scene. Our comprehensive
network of experienced dealers
always guarantees quick and
reliable service.
REMKO INTERNATIONAL
… and also right in your neighbourhood!
Make use of our experience and advice
We reserve the right to make technical changes, and provide no guarantee as to the accuracy of this data!
REMKO GmbH & Co. KG
Air conditioning and heating technology
Im Seelenkamp 12 D-32791 Lage
Postfach 1827 D-32777 Lage
Telephone +49 5232 606-0
Telefax +49 5232 6 06-2 60
E-mail info@remko.de
Website www.remko.de
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