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Assembly and operating instructions
REMKO BL...DC
BL 262 DC, BL 352 DC
Inverter wall-mounted room air conditioner with split design with quick-coupling system
0043-2014-03 Edition 5, 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
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REMKO BL...DC
4
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!
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 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.
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 maintenance 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 BL...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 technician 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, maintenance or cleaning work on the units.
n The setup, connection and operation of the units and its components must be undertaken in accordance with the usage and operating conditions stipulated in this manual and comply with all applicable regional regulations.
n Local regulations and laws such as Water
Ecology Act must be observed.
n The power supply should be adapted to the requirements of the units.
n Units may only be mounted at the points provided 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 suitable surfaces and in an upright position. Stationary units must be permanently installed for operation.
n The units and components should not be operated in areas where there is a heightened risk of damage. Observe the minimum clearances.
n The units and components must be kept at an adequate distance from flammable, explosive, combustible, abrasive and dirty areas or atmospheres.
n Safety devices must not be altered or bypassed.
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 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.
1.11 Transport and packaging
The devices are supplied in a sturdy shipping container. Please check the equipment immediately upon delivery and note any damage or missing parts on the delivery and inform the shipper and your contractual partner. For later complaints can not be guaranteed.
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, e.g. using certified firms and recycling specialists or at collection points.
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REMKO BL...DC
2 Technical data
2.1 Unit data
Series
Operating mode
Nominal cooling output 1)
Energy efficiency ratio SEER
1)
Electrical rated power consumption, cooling
1)
Electrical rated current consumption, cooling
1)
Power consumption, annual, Q
CE
3)
Energy efficiency ratio, cooling
1)
Nominal heat capacity
2)
Energy efficiency ratio SCOP 4)
Electrical rated power consumption, heating 2)
Electrical rated current consumption, heating 2)
Power consumption, annual, Q
HE
3)
Energy efficiency ratio, heating 2)
Max. power consumption
Max. current consumption
EDP no.
kW kW
A kWh kW kW
A kWh kW
A
BL 262 DC BL 352 DC
Inverter wall-mounted room air conditioner combination for cooling and heating
2.80 (1.10-3.70) 3.60 (1.10-4.20)
6.8
0.73
3.20
144
A++
2.90 (1.00-4.10)
3.8
0.75
3.30
1,068
A
2.2
9.5
1629262
6.1
1.18
5.10
207
A++
3.70 (1.10-4.60)
3.8
0.91
4.00
1,363
A
2.1
9.5
1629352
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
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Data specific to indoor unit
Application area (room volume), approx.
Adjustment range, room temperature
Operating range
Air flow volume per level
Sound pressure level per speed setting
5)
Sound pressure level, Silent/Turbo mode
5)
Sound power level max.
5)
Enclosure class
Condensate drainage connection
Dimensions: H/W/D
Weight
EDP no.
m
°C
°C
3 m³/h dB (A) dB (A) dB(A)
IP mm mm kg
BL 262 DC IT BL 352 DC IT
80 110
+17 to +30, +8 with "FP" function
+17 to +32
360/480/550
28/36/40
370/480/630
27/36/42
22/42
53
22/44
56
X 0
18
280/750/198
7.0
1629264
280/835/198
8.5
1629354
5) At distance of 1m in the open air; specified values are maximum values
Data specific to outdoor unit BL 262 DC AT
Power supply
Operating range, cooling
Operating range, heating
7)
Air flow rate, max.
Enclosure class
Sound power level max. 5)
Sound pressure level 5)
Refrigerant 6)
Refrigerant, basic capacity
Max. operating pressure
Refrigerant piping, max. length
Refrigerant piping, max. height
Dimensions: H/W/D
Weight
EDP no.
V/Ph/
Hz
°C
°C m³/h
IP dB (A) dB (A) kg kPa m m mm kg
1,800
60
49
1.1
3, 5, 8
5
35.0
1629263
5)
At distance of 1m in the open air; specified values are maximum values
6) Contains greenhouse gas according to Kyoto protocol, GWP 1975
7)
This can be extended to -15°C with the appropriate accessory kit
+5 to +50
+5 to +34
24
R 410A
590/760/285
BL 352 DC AT
230 / 1~ / 50
4,200 / 1,500
2,000
63
55
1.1
3, 5, 8
5
35.5
1629353
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REMKO BL...DC
2.2 Unit dimensions
Outdoor units
B
C
D
A
Fig. 1: Outdoor unit dimensions BL 262-352 DC AT
Dimensions (mm)
BL 262-352 DC AT
A
590
B
760
Indoor units
C
285
D
530
E
290
E
C
B
A
Fig. 2: Indoor unit dimensions BL 262-352 DC IT
Dimensions (mm)
BL 262 DC
BL 352 DC
A
280
280
B
750
835
C
198
198
We reserve the right to modify the dimensions and design as part of the ongoing technical development process.
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2.3 Performance curves for heating and cooling
Heating capacity BL 262 DC
5,00
4,00
3,00
1
2
2,00
1,00
3
0,00
12 7 2
A
0
[°C]
-7 -10 -15
Fig. 3: Performance curves, heating BL 262 DC (data for 20 °C indoor temperature)
A: Outside temperature
1: COP
2: Heating capacity in kW
3: Power consumption in kW
Outside temperature in °C
Heating capacity in kW
Power consumption in kW
COP
12
3.33
0.76
4.37
7
2.93
0.75
3.91
2
2.79
1.26
2.21
0
2.65
1.19
2.23
-7
2.36
1.11
2.12
-10
2.22
1.11
2.00
Cooling capacity BL 262 DC
6,00
5,00
4,00
3,00
2,00
1,00
0,00
1
2
21
3
25 30
A
35
[°C]
40 45 50
Fig. 4: Performance curves, cooling BL 262 DC (data for 27/19 °C indoor temperature)
A: Outside temperature
1: EER
2: Cooling capacity in kW
3: Power consumption in kW
Outside temperature in °C
Cooling capacity in kW
Power consumption in kW
EER
21
2.80
0.57
4.93
25
2.99
0.61
4.87
30
3.01
0.67
4.51
35
2.90
0.73
3.97
40
2.49
0.74
3.36
45
2.36
0.75
3.13
-15
1.91
1.05
1.82
50
2.30
0.78
2.94
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REMKO BL...DC
Heating capacity BL 352 DC
5,00
4,00
1
2
3,00
2,00
1,00
3
0,00
12 7 2
A
[°C]
0 -7 -10 -15
Fig. 5: Performance curves, heating BL 352 DC (data for 20 °C indoor temperature)
A: Outside temperature
1: COP
2: Heating capacity in kW
3: Power consumption in kW
Outside temperature in °C
Heating capacity in kW
Power consumption in kW
COP
12
4.21
0.93
4.55
7
3.70
0.91
4.07
2
3.53
1.53
2.31
0
3.35
1.44
2.33
-7
2.98
1.35
2.21
-10
2.80
1.35
2.08
Cooling capacity BL 352 DC
5,00
4,00
3,00
2,00
1,00
1
2
3
0,00
21 25 30
A
[°C]
35 40 45 50
Fig. 6: Performance curves, cooling BL 352 DC (data for 27/19 °C indoor temperature)
A: Outside temperature
1: EER
2: Cooling capacity in kW
3: Power consumption in kW
Outside temperature in °C
Cooling capacity in kW
Power consumption in kW
EER
21
3.57
0.92
3.89
25
3.81
0.99
3.84
30
3.84
1.08
3.56
35
3.70
1.18
3.14
40
3.18
1.20
2.65
45
3.01
1.22
2.47
-15
2.42
1.27
1.90
50
2.93
1.26
2.32
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3 Design and function
3.1 Unit description
The room air conditioners BL 262-352 DC have a
REMKO BL...AT outdoor unit as well as an BL...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 controller in 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.
2
3 4
7
1 5 6
Fig. 8: 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: Liquid line connection valve
8
9
1 2
3
Fig. 7: Cooling cycle diagram for indoor unit
1: Evaporator
2: Evaporator fan
3: Suction pipe connection
4: Liquid line connection
4
1
5
3 B
A
2
7
8
9
5
6
3
4
Fig. 9: 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: Liquid line
9: Control line
Refrigerant piping is used to connect the indoor unit to the outdoor unit.
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REMKO BL...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
The indoor units can be put into operation manually. After the air inlet screen has been opened, the inner recessed key can be pressed and automatic mode can be activated. In manual mode, the following settings apply:
Cooling mode: last setting
Fan speed: AUTO
Heating mode: last setting
Fan: AUTO
Press a key on the infrared remote control to interrupt manual mode.
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.
max. 6 m
Fig. 10: 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!
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Display on indoor unit
The display illuminates according to the settings.
1 2
3
4 5
Fig. 11: Display on indoor unit
1: Ionic function
2: Display of defrosting
3: Power light
4: Timer enabled / disabled
5: Signal receiver
6: Display of target value + display
6
Keys on the remote control
1
2
3
4
7
5 6 8 9
10
11
12
13
14
Fig. 12: Keys on the remote control
1
"ON/OFF" key
Press this key to put the unit into operation and take it out of operation.
2
"MODE" key
Press this key to select the operating mode. The indoor unit has 5 modes:
1. Automatic mode
In this mode, the unit works in cooling or in heating mode.
2. Cooling mode
In this mode, the warm air in the room is cooled down to the preset temperature.
3. Dehumidification mode
In this mode, the room is dehumidified, thereby the room temperature significantly lowered. Influencing temperature and fan speed in this mode not possible.
4. Heating mode
In this mode, the warm air in the room is heated up to the desired temperature.
5. Recirculation mode
In this mode, the air in the room is recirculated.
Temperature selection is not possible.
3
"FAN" key
Press this key to set the desired fan speed. 4 speeds are available:
Automatic, low, medium and high fan stage.
4
"SLEEP/FRESH" key
"SLEEP" key
Pressing this key will automatically increase or decrease the target temperature by 1 °C within an hour in cooling and heating mode respectively.
Press this key to maintain the most convenient temperature and save energy. This function is only available in "Cooling", "Heating" and "Auto" modes.
If the unit is working in "SLEEP" mode, this activity is interrupted by pressing the "MODE", "FAN",
"Speed" or ""ON/OFF" keys.
"FRESH" key
Activates the unit's ion generator. This releases negatively charged particles into the airflow, which neutralises the influences of smoke and dust, among other things.
5
"TURBO" key
The "TURBO" function allows the preset temperature to be reached in the shortest possible time.
Pressing this key in "Cooling mode" causes the unit to blow a blast of cooling air into the room at a very high fan speed.
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REMKO BL...DC
6
"SELF CLEAN" key
This key activates the self-clean function.
7
" ▲ " and " ▼ " keys
The " ▲ " key increases the desired temperature to
30°C in 1°C increments.
The " ▼ " key decreases the desired temperature to 17°C in 1°C increments .
8
"LED" key
This key switches the lighting on the indoor unit off and back on again.
9
"FOLLOW ME" key
Pressing this key initiates the "Follow Me" function.
The display on the remote control shows the actual temperature of the current location of the remote control. The remote control transmits this signal to the air conditioning unit at intervals of 3 minutes, until the "Follow Me" key is pressed again. The air conditioning unit automatically cancels the "Follow
Me" function if it has not received the signal for a period of 7 minutes.
10
"SILENT MODE" / "FP" key
This key activates/deactivates Silent mode.
The fan speed is reduced to a minimum.
In this mode, the air conditioning unit operates silently.
The "FP" (Freeze Protection) key activates a frost protection function with which the setpoint in heat mode is set to ca. 8°C.
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"TIMER ON" key
This key initiates the automatic switch-on time for the unit. Each time the key is pressed, the automatic time setting increases in increments of 30 minutes. Once the time setting shows 10.0, the automatic time setting increases in increments of
60 minutes each time the key is pressed. In order to cancel the automatic time setting, simply set the automatic switch-on time to 0.0.
12
"TIMER OFF" key
This key initiates the automatic switch-off time for the unit. Each time the key is pressed, the automatic time setting increases in increments of 30 minutes. Once the time setting shows 10.0, the automatic time setting increases in increments of
60 minutes each time the key is pressed. In order to cancel the automatic time setting, simply set the automatic switch-off time to 0.0.
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"DIRECT" key
This key sets the desired fin position of the exhaust fins. Each time the "DIRECT" key is pressed, the fins change position by 6 degrees.
In addition, this key is used to stop and start the automatic "Swing" function of the horizontal exhaust fins.
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"SWING" key
This key has no function.
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Indicators on the LCD
2 3 4
1
5
6
7
8
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 1°C.
3.
Press the "ON/OFF" key to switch on the air conditioning unit.
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Fig. 13: Indicators on the LCD
1: Mode indicator - shows the current operating modes, including Auto ( ), Cooling ( ), Dehumidification ( ), Heating ( ), Fan ( ) and back to Auto ( ) mode.
2: Signal transmission symbol. This symbol appears when signals are being transmitted from the remote control to the indoor unit.
3: ON/OFF symbol. This symbol appears when the "ON/OFF" key is pressed. Pressing this key again causes the indicator to go out.
4: TIMER ON symbol. This symbol appears when
TIMER ON is switched on.
5: TIMER OFF symbol. This symbol appears when TIMER OFF is switched on.
6: Sleep symbol. This symbol appears when the
"Sleep" function is activated. Pressing this key again causes the indicator to go out.
7: Temperature/Timer symbol. Shows the temperature setting (-17°C~30°C). If "FAN" mode is selected, the temperature setting is not displayed. In Timer mode, the ON and OFF settings appear for the TIMER.
8: FOLLOW ME symbol. This symbol appears when the "Follow me" function is activated.
9: Fan speed symbol. This is where the selected fan speeds are displayed: AUTO (no indicator) and the three fan speed settings:
(medium) and
(slow),
(fast). The fan speed is set to "Automatic" when either "Auto" or "Dehumidification" mode is activated.
3
1
Fig. 14: "Auto" mode
The illustration of the LCD with all of the symbols present is only intended to provide a clearer overview. During operation, only those symbols relevant to the respective functions appear on the display.
2
–
In "Auto" mode, the air conditioning unit is able to logically select between the
"Cooling" , "Recirculation" and "Heating" modes, specifically by detecting the difference between the actual room temperature and the temperature set on the remote control.
–
In "Auto" mode, it is not possible to set the fan speed. This is already controlled automatically.
–
If "Auto" mode is not comfortable enough for you, you can also select the desired mode manually.
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REMKO BL...DC
"Cooling", "Heating" and "Recirculation" mode
Make sure that the indoor unit is connected to the power supply, and is switched on.
1.
Press the "MODE" key to select from operating modes "Cooling", "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 1°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.
1.
Press the "MODE" key to select "Dehumidification" mode.
2.
It is not possible to set a temperature here.
3.
Press the "ON/OFF" key to switch on the air conditioning unit.
2
3
1
2
4
1
3
Fig. 16: "Dehumidification" mode
Fig. 15: "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.
"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.
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
18
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.
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 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.
–
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.
Fig. 17: "Timer" mode
1
2
19
REMKO BL...DC
Example TIMER function settings
"TIMER ON" (Auto on mode)
The "TIMER ON" function is useful if you want the unit to switch on automatically before you come home. The air conditioning unit will commence operation automatically at the set time.
Example:
You want the air conditioning unit to switch on six hours from the time it was programmed.
1.
Press the "TIMER ON" key. The last operating time setting for the timer, and the "H" symbols, appear on the display.
2.
Press the "TIMER ON" key until "6.0H" is shown in the "TIMER ON" area on the remote control.
3.
Wait for three seconds and the temperature appears again in this area of the digital display. The "TIMER ON" indicator stays lit, and this function is activated.
Fig. 18: "TIMER ON" example
"TIMER OFF" (Auto off mode)
The "TIMER OFF" function is useful if you want the unit to switch off automatically once you have gone to bed. The air conditioning unit will cease operation automatically at the set time.
Example:
You want the air conditioning unit to switch off ten hours from the time it was programmed.
1.
Press the "TIMER OFF" key. The last operating time setting for the timer, and the "H" symbols, appear on the display.
2.
Press the "TIMER OFF" key until "10H" is shown in the "TIMER OFF" area on the remote control.
3.
Wait for three seconds and the temperature appears again in this area of the digital display. The "TIMER OFF" indicator stays lit, and this function is activated.
Fig. 19: "TIMER OFF" example
Combined TIMER (setting "TIMER ON" and
"TIMER OFF" at the same time)
"TIMER OFF ð "TIMER ON"
(On ð Stop ð Start)
This function is useful if you want the unit to switch off automatically once you have gone to bed, then to switch back on automatically when you get up or come home.
Example:
You want the air conditioning unit to switch off in two hours from the time it was programmed, and switch back on ten hours later.
1.
Press the "TIMER OFF" key.
2.
Press the "TIMER OFF" key again until
"2.0H" is shown in the "TIMER OFF" area on the remote control.
3.
Press the "TIMER ON" key.
4.
Press the "TIMER ON" key again until "10H" is shown in the "TIMER ON" area on the remote control.
5.
Wait for three seconds and the temperature appears again in this area of the digital display. The "TIMER ON" and "TIMER OFF" indicators stay lit, and this function is activated.
Set time einstellen
2 hours later after setting
10 hours later after setting
Fig. 20: "TIMER OFF" / "TIMER ON" example
20
"TIMER ON ð "TIMER OFF"
(Off ð Start ð Stop)
This function is useful if you want the unit to switch on automatically before you wake up, then to switch off again once you have left the house.
Example:
You want the air conditioning unit to switch on in two hours from the time it was programmed, and switch back off five hours later.
1.
Press the "TIMER ON" key.
2.
Press the "TIMER ON" key again until "2.0H" is shown in the "TIMER ON" area on the remote control.
3.
Press the "TIMER OFF" key.
4.
Press the "TIMER OFF" key again until
"5.0H" is shown in the "TIMER OFF" area on the remote control.
5.
Wait for three seconds and the temperature appears again in this area of the digital display. The "TIMER ON" and "TIMER OFF" indicators stay lit, and this function is activated.
1
Fig. 22: "Sleep" function
The "SLEEP" function is only available in the
"Cooling", "Heating" and "Auto" modes.
Set time einstellen
2 hours later after setting
5 hours later after setting
Fig. 21: "TIMER ON" / "TIMER OFF" example
The timer settings ("TIMER ON" or "TIMER
OFF") which is made immediately after the set time will be activated first.
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. For 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.
Adjusting the airflow direction
Use the "SWING" and "DIRECT" keys to achieve the desired airflow direction.
1.
Press the "DIRECT" key to determine the horizontal position of the exhaust fins. Each time the "DIRECT" 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.
21
REMKO BL...DC
5 Installation instructions for qualified personnel
5.1 Important notes prior to installation
5.2 Wall openings
n Transport the unit in its original packaging as close as possible to the installation location.
You avoid transport damage by doing so.
n Check the contents of the packaging for completeness and check the unit for visible transport damage. Report any damage immediately to your contractual partner and the shipping company.
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 Perform all electrical wiring in accordance with applicable DIN and VDE standards.
n Ensure the electrical cables are properly connected 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.
n A wall opening of at least 100 mm diameter and 10mm incline from the inside to the outside must be created.
n To prevent damage to the lines, the interior of 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 (provided by the customer). Do not use cement or lime containing substances!
1 2
3 4
Fig. 23: Wall opening
1: Liquid line
2: Control line
3: Condensate drainage line
4: Suction pipe
5: PVC pipe
5
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.
22
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 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.
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.
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.
1
Fig. 24: 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. 25: 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. 26).
n Install an additional fan with a rated flow comparative to that of the outdoor unit being installed in the room and which can compensate any additional pressure loss in ventilation
n Comply with any regulations and conditions affecting the statics of the building. If necessary, fit acoustic installation.
23
REMKO BL...DC
3
2
W
K
3
1
Fig. 26: Installation inside buildings
K: Cold fresh air
W: Warm air
1: Outdoor unit
2: Additional fan
3: Air shaft
5.5 Minimum clearances
Observe the min. clearances to allow access for maintenance and repair work and facilitate optim. air distribution.
IT
E
1
AT
1
E
A
C
B
F
2
Fig. 27: Minimum clearances of the indoor unit and outdoor unit
AT: Outdoor unit / IT: Indoor unit
1: Air inlet / 2: Air outlet
Dimensions (mm)
C
D
A
B
E
F
Indoor units
BL 262-352 DC IT
120
1,500
120
-
120
200
D
A
B
2
Outdoor units
BL 262-352 DC AT
150
700
400
150
200
-
C
24
5.6 Oil return measures
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.
A
1
3
B
2
Fig. 28: Oil return measures
A: Outdoor unit
B: Indoor unit
1: One oil pump bend in suction pipe to outdoor unit every 2.5 metres of height difference
2: Radius: 50mm
3: Max. 10m
5.8 Wall bracket for the indoor unit
A
C
5.7 Connection variants for the indoor unit
The following connection variants can be used for the refrigerant, condensate and control lines.
A
B
Fig. 29: Connection variants
A: Outlet on the wall, right
B: Outlet through the wall, right
C: Outlet on the wall, left
D
B
C
I J
Fig. 30: Mounting points for wall bracket BL 262-352 DC IT (Front view, all dimensions in mm)
Unit type / dim. in mm
BL 262 DC IT
BL 352 DC IT
A
375
417.5
B
375
417.5
C
275
230
D
165
210
F
45
45
The diameter of the pipe break-through is 65 mm for all units types.
The wall bracket for the units must be attached with suitable screws and anchors.
I
346
315
F
J
100
100
25
REMKO BL...DC
6 Installation
6.1 Installation of the indoor unit
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, remove the break out opening 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. (Fig. 31)
6.2 Connecting the refrigerant piping
The refrigerant pipes should be connected by the customer on the right-hand side of the outdoor component.
1.
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).
2.
Ensure that structure-borne sound is not transferred to parts of the building. Use vibration dampers to reduce the effects of structure-borne sound!
NOTICE!
Installation should only be performed by authorised specialists.
CAUTION!
Both units are pre-filled with refrigerant at the factory. Suitable protective clothing must be worn during installation.
NOTICE!
Use only tools which are approved for use in an HVAC environment.
Fig. 31: Horizontal positioning
The wall bracket for the units must be attached with suitable screws and anchors.
26
6.3 Connection of quick-release couplings
The refrigerant pipes should be connected by the customer on the right-hand side of the outdoor component. The pre-filled refrigerant piping are connected to the outdoor component by means of the quick-connector system. Once installed, the connections should be insulated to make them vapour diffusion proof. The following instructions describe the installation of the refrigerant piping for the indoor unit on the outdoor unit.
1.
Remove the pre-installed plastic cover from
the outdoor component (Fig. 32).
Fig. 34: Remove protective caps
3.
Before connecting the refrigerant pipes, ensure that the quick-release couplings are
situated in front of one another (Fig. 35).
Fig. 32: Remove the plastic cover
2.
Remove the green/black protective caps from the quick-connectors on the outdoor component, as well as the flexible refrigerant pipes
on the indoor unit (Fig. 33 and Fig. 34).
Fig. 33: Remove protective caps
Fig. 35: Position of the quick-release couplings
4.
First connect and hand-tighten the refrigerant piping to ensure it is correctly seated.
5.
Then install the suction pipe with the largest
NOTICE!
When connecting the refrigerant piping, take note of the "Outdoor unit, top" and
"Outdoor unit bottom" labelling and not the colour-coding of the sealing caps.
Note the diameter of the lines. In order to guarantee the function of the unit, the line must be connected with other lines of identical diameter!
27
REMKO BL...DC
Pipe dimension in inches
1/4"
3/8"
1/2"
5/8"
3/4"
Tightening torque in Nm
15-20
33-40
50-60
65-75
95-105
Fig. 36: Installation on the outdoor unit
Fig. 37: Installation on the indoor unit
6.
Then tighten the fittings with 2 appropriatelysized open-ended spanners. Use one spanner to counter the force when tightening
1
2
CAUTION!
Only open the stop cocks following complete installation of the quick-release couplings and
before switching the system on!
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
Leak testing involves spraying a leak detection spray onto the connections. If bubbles are visible, the connections have not been made properly.
Then tighten the screw connection.
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 1975. That means the escape of 1 kg of this refrigerant has an effect on global warming that is 1975 times greater than 1 kg CO
2
, based on 100 years. Do not conduct any work on the refrigerant circuit or dismantle the device - always enlist the help of qualified experts.
Fig. 38: Tightening the fitting
1: Tighten with the first open-ended spanner
2: Counter with the second open-ended spanner
7.
Open the stop cocks with an Allen key before switch the system on!
28
7 Condensate drainage connection and safe drainage
A D
B
5
1
E
B
5
1
9
8
3
1
4
100
5 6 5
7
8
2
3
9
10 10
12
11
12
Fig. 39: 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 = 300x200x800mm
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
11
C
Fig. 40: Dimensions for the strip foundation (bird's eye view)
For the designations of 1,3,5,8,9 and 11, please
refer to the legend for the Fig. 39
dimensioning of the strip foundation
Value in mm
C
D
E
A
B
Dimension
800
200
530
290
330
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 incline of min. 2%. This is the responsibility of the customer. If necessary, fit vapour-diffusionproof insulation.
n When operating the unit at outside temperatures 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 condensate run off is unobstructed and ensure that the line is durably leak tight.
29
REMKO BL...DC
min. 2%
Fig. 41: 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 Water 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.
30
8 Electrical wiring
8.1 General Information
A protected power supply cable is to be connected to the outdoor unit and a 5-wire control line to the indoor 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.
The units' scope of delivery includes a ten metre long, four-core control line for connecting the indoor unit to the outdoor unit. The control line to the outdoor unit contains a data cable which is used to establish communication between the indoor unit and the outdoor unit. This is used for controlling the cooling and heating performance and for forwarding malfunction messages to the indoor unit. If the length is insufficient, you can extend the control lines on the indoor unit.
Make the connection as follows:
1.
Open the air inlet grill.
2.
Remove the covers on the right-hand side
3.
Disconnect the control line from the terminal block and remove the control line.
4.
Connect the customer-laid control line to the
5.
Join the customer-laid control line to the supplied control line in a professional manner.
6.
Insert the control line plug into the corresponding socket on the outdoor unit.
7.
Re-assemble the unit.
We recommend using shielded wires for the control lines.
1
3
4
Check all plugged and clamped terminals to verify that they are seated correctly and make permanent contact. Tighten as required.
8.2 Connecting the indoor unit
n We recommend that a mains/repair switch be 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 an optional condensate pump is used as an accessory in conjunction with the unit, it may be necessary to install an additional relay with a higher contact rating after the switch-off contact on the pump to switch off the compressor.
2
Fig. 42: Connecting the indoor unit
1: Cover
2: Strain relief
3: Terminal block for control line
4: Control line from outdoor unit
1
31
REMKO BL...DC
8.3 Outdoor unit connection
Proceed as follows to connect the line:
1.
Remove the side-panel cover.
2.
Choose the cable cross-section in accordance with the relevant specifications.
3.
Connect the lines as shown on the electrical connection diagram.
4.
Fix the line in the strain relief and reassemble the unit.
8.4 Electrical wiring diagram
Connection BL 262-352 DC
A
Fig. 43: Outdoor unit connection
B
L N PE L(1) 1 2(N) S PE
1
230V/1~/50 Hz
Fig. 44: Electrical wiring diagram
A: Outdoor unit BL 262-352 DC AT
B: Indoor unit BL 262-352 DC IT
2
1: Power supply
2: Communication line
L(1) 1 2(N) S PE
32
Connection of optional condensate pump KP 6 / KP 8
L(1) 1 2(N) S
PE
B
2
3
L
N
WH
BK
C
L(1) 1 2(N) S
PE
A
L N PE
1
L N PE
Fig. 45: 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
33
REMKO BL...DC
8.5 Electrical drawings
Indoor units BL 262-352 DC IT
1
CE-KFR26G/BP3N1Y-11M.D.11.NP2-1
2
3
CN8
CN9
CN5
SW1
4
Fig. 46: Electrical drawings
A: Supply line (L_IN = 1, L_OUT = L)
B: Supply line (CN = N)
1: Display
2: Air circulation probe
CN12_2
CN4
5
3: Evaporator probe
4: Swing motor 2
5: Evaporator fan motor
6: Ion generator
CN11
6
202302130860
CN12_1
A
B
34
Outdoor units BL 262-352 DC AT
1
CN13
CN8
CN9
A
CN12
X
CE-KFR26W/BP3(PFC).D.13.WP2-1
CN15
3
4
202302130906
2
3
4
5
CN301
CN302
CN303
CN11
CN10
6
7
Fig. 47: Electrical drawings
A: Supply and indoor unit supply
1: 4-way valve
2: Condenser fan
3: Injection valve
4: Heat gas probe
5: Outside air probe, Condenser probe
6: Reactor
7: Compressor
35
REMKO BL...DC
9 Before commissioning
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 leaktightness 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-off valves and valve caps are tight after carrying out any work on the cooling cycle. Use appropriate sealant products as necessary.
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 suction 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.
36
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-off valves on the outdoor 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-off 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.
Use the remote control to switch on the unit and select the cooling mode, maximum fan speed and lowest target temperature.
7.
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.
8.
Check the unit control system using the functions described in the chapter "Operation".
Timer, temperature setting, fan speeds and switching to ventilation or dehumidification mode.
9.
Check the correct function of the condensate drainage line by pouring distilled water into the condensate tray. A bottle with a spout is recommended for pouring the water into the condensate tray.
10.
Switch the indoor unit to heating mode.
11.
During the test run, check the functionality of all of the previously described safety devices.
12.
Record the measured values into the commissioning report and familiarise the operator with the system.
13.
Remove the pressure gauge. Check that seals have been fitted in the sealing caps.
14.
Re-install all disassembled parts.
37
REMKO BL...DC
11 Troubleshooting, 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 their correct function. However, if alarms should occur, please check the functions as detailed in the list below. For systems with an indoor unit and outdoor unit, refer to the chapter "Troubleshooting and customer service" in both operating manuals. Please inform your dealer if the unit is still not working correctly after all function checks have been performed!
Operational malfunctions
Malfunction
The unit does not start or switches itself off.
Possible causes
Power failure, undervoltage, defective mains fuse / main switch in
OFF position
Temperature outside operating range.
Electrical surges caused by thunderstorms
Checks
Does all other electrical equipment function correctly?
Damaged power supply Does all other elec.
equipment function correctly?
Wait time after switching on is too short
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?
Remedial measures
Check the voltage and if necessary, wait for it to 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
The unit does not respond to the remote control
Malfunction of the external condensate pump
High-pressure / low-pressure switches have triggered
Transmission distance too far / receiver affected by interference
Has the pump shut down due to a malfunction?
Check refrigerant pressure and look for leaks if necessary
Does the indoor unit beep when pressing a key?
Defective remote control Is the unit running in manual mode?
Receiver or transmitter unit exposed to excessive solar radiation
Does it function correctly in the shade?
Electromagnetic fields are interfering with transmission
Button in remote control jammed / two buttons pressed at same time
Batteries in remote control are flat
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?
Rectify leakage and restart
Reduce the distance to less than 6m or change position
Replace the remote control
Place the receiver and/or transmitter unit in the shade
Signal is not transmitted when interference sources are operational
Release the key / only press one key
Insert new batteries
38
Malfunction
The unit is running but only provides reduced or no cooling or heating output.
Condensate discharge on unit
Possible causes
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
Checks
Have the filters been cleaned?
Have structural / usage modifications been made?
Does the cooling symbol appear on the display?
Leaking cooling cycle
Outdoor unit iced up
Drainage pipe on collection container clogged / damaged
Faulty external condensate pump or float
Condensate has not drained away and has collected in the condensate drainage line
Condensate does not drain off
Float is stuck or jammed due to excessive dirt.
Does the fan of the outdoor unit work? Are the exchanger fins unobstructed?
Are there signs of frost on the exchanger fins of the indoor unit?
Check outdoor unit. Has the cassette probe on the outdoor unit been correctly positioned?
Can the condensate drain off without any obstruction?
Is the collection tray full of water and the pump not running?
Is there an incline on the condensate drainage line? Check there is no blockage in the pipe.
Are the condensate drainage lines unblocked and is there a steady incline? Are the condensate pump and liquid level switch functioning correctly?
Are the LEDs on the receiver unit of the indoor unit flashing?
Remedial measures
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
Call out a specialist to replace the pump
Ensure there is an incline when laying the condensate drainage line and clean the pipe.
Route the condensate drainage line with an incline and clean it. If the liquid level switch or the condensate pump is defective, have them replaced.
Should be cleaned by specialist firm
39
REMKO BL...DC
F4
F5
P0
P1
Malfunction on the indoor unit
E1
E2
E3
E4
Indication
E0
E5
EC
F1
F2
F3
P2
P3
Cause Required action
EEPROM error
Communication error between outdoor and indoor unit
See error analysis
Contact specialist dealer
Phase monitoring has responded Check wiring
Evaporator fan motor speed too low / defective See error analysis
Ambient air probe on indoor unit defective / connection interrupted (T1)
Register probe on indoor unit defective / connection interrupted (T2)
Cooling mode: no cooling output after 30 min.
Heating mode: no heating output after 30 min.
Check connection and plug
Check connection and plug
Contact specialist dealer
Ambient air probe for outdoor unit faulty / connection interrupted (T4)
Register probe on outdoor unit defective / connection interrupted (T3)
Heat gas probe on outdoor unit faulty / connection interrupted (T5)
Check connection and plug
Check connection and plug
Check connection and plug
EEPROM error on outdoor unit
Switch off power to unit for 1 min.
Contact specialist dealer.
See error analysis Condenser fan speed not alright
Rotational speed monitoring on compressor has responded (inverter module)
Check connections CN4 and CN1 on the outdoor unit PCB / Contact specialist dealer
Overload switch on outdoor unit tripped (250V) Check the voltage of the power supply
Excessive temperature (Klixon) compressor has tripped
Compressor overcurrent protection has responded
Check the refrigerant quantity / Check the resistance of the compressor sensor (normal
0Ω)
Check winding resistance of the compressor
(1Ω = U-V / U-W / V-W)
11.2 Diagnosis and solution indoor unit
Error E0: EEPROM parameter error
Shut off the power supply and turn it on 5 seconds later. Is it still displaying the error code?
YES
NO
Is the EEPROM chip plugged in PCB well?
YES
Replace the ind.
Correct the connection.
40
Error E1: Indoor/outdoor units communication error
Power off, then turn on the unit 5 seconds later
(reconnect the power wire). Is the erorr still displaying after several minutes?
YES
Check all the wirings between indoor and outdoor, indoor PCB and outdoor PCB following the wiring diagram. Are all the wirings connected correctly?
YES
Is -24V<Vs<+24V?
(Vs is the voltage between S and N of outdoor unit).
YES
Is the wiring to the outdoor PCB connected correctly?
YES
Change the outdoor main PCB.
NO
NO
Is the wiring to the indoor PCB connected correctly?
YES
Change the indoor PCB.
Power on. Is the error extinguished?
Error E2: Zero crossing detection error
Check if the connections and power supply is normal?
YES
Indoor PCB is defective. Replace indoor PCB.
NO
Correct the connections. Turn on the unit when the power supply is good.
41
REMKO BL...DC
Error E3: Indoor fan speed has been out of control
Shut off the power supply and turn it on
5 seconds later. Is it still displaying the error code?
YES
Shut off the power sopply, rotate the cross fan by hand.
Does it rotate properly?
YES
Check the wires of fan motor. Are all the connections good?
YES
Check the resistance value of indoor fan motor, is it normal?
YES
Replace indoor
PCB.
NO
NO
NO
NO
Correct the connections.
Replace indoor fan motor.
The unit operates normally.
Disassembly the connection between fan and motor, check if the bearing is normal?
YES
Replace indoor fan motor.
NO
Replace the bearing.
Error E3-E4 and F1-F3 : sensor error
Check the connections between temperature sensor and PCB. Are the connections good?
YES
Check the resistance of the sensor. Use the resistance-sensor. Does the Resistance of the sensor with the value in the table match?
YES
Replace indoor or outdoor PCB.
NO
NO
Correct the connetions.
Replace the sensor.
42
Error EC: Refrigerant leakage detection
Shut off the power supply and turn it on 5 seconds later. Is it still displaying the error code?
YES
Is there cool air blowing out from indoor air outlet?
YES
NO
Is there any leakage? Especially the connections parts, such as the gas valve and the liquid valve.
YES
NO
Is there any blocking? (such as the capillary or the welded points of the pipes).
YES
Clear the blocking.
Check if T2 sensor is well fixed. Correct the installation or replace T2 sensor. Does the problem remain again?
YES
Replace indoor PCB.
Repair the leakage and recharge the refrigerant.
43
REMKO BL...DC
Error F5: Condenser fan speed not alright
Shut off the power supply and turn it on 5 seconds later. Is it still displaying the error code?
YES
NO
Shut off the power sopply, rotate the cross fan by hand. Does it rotate properly?
NO
YES
Check the wires of fan motor. Are all the connections good?
YES
Pull the CN 400 plug from the circuit board. Check the resistance between U-V,
U-W and V-W. Are the resistances the same?
YES
Measure the voltage at pins 4 and 5 of the signal cable. Is the value ~5V?
NO
Correct the connections.
NO
NO
Replace indoor fan motor.
Replace the outdoor unit's control board.
YES
Contact your specialist dealer
The unit operates normally.
Disassembly the connection between fan and motor, check if the bearing is normal?
YES NO
Replace indoor fan motor.
Replace the bearing.
44
Error P0: IPM malfunction or IGBT over strong current protection
Check if the wiring between module PCB and compressor connected correctly.
YES
IPM continuity check. Check if the IPM terminal resistance values are uniform.
YES
NO
NO
Correct the connection.
Replace the module PCB.
Check if the IPM installed correctly. Check if the outdoor fan can run properly
NO
Correct the installation, tighten the screws and apply silicon grease. Correct the connection of fan motor or reolace the fan motor.
YES
Replace outdoor control PCB. Does the problem still remain?
YES
Replace the compressor.
Error P1: Over voltage or over low voltage protection
Check if the power supply is normal.
YES
Check if all the connections are good
YES
Check if the voltage between P and N is around
DC 320V
YES
Replace outdoor control PCB.
NO
Disconnect the unit with power supply and try to restart the unit when power supply gets normal.
NO
Correct the connections.
45
REMKO BL...DC
Error P2: High temperature protection of compressor top
Check if the air flow system of indoor and outdoor units are obstructed?
NO
Turn off the power supply and turn it on 10 minutes later.
YES
Check if the unit can start normally
YES
Clear up the air inlet and outlet or the heat exchanger of indoor and outdoor units.
NO
Check if all the connection, especially the connection of OLP (Over Load Protector) sensor is good.
YES
Refrigerant system is blocked, such as capillary or weled point of pipes.
Error P3: Compressor drive error
Check all the wires between control PCB, module PCB and compressor.
YES
IPM continuity check. Check if the IPM terminal resistance values are uniform.
NO
Replace the compressor.
NO
Correct the connections.
46
Resistance values of the sensors T1, T2, T3 and T4
Temperature (°C)
Resistance value (k
W)
5
26,9
Resistance value of the sensor T5
10
20,7
15
16,1
20
12,6
Temperature (°C) 5
Resistance value (k
W)
141,6
Temperature / resistance
15
88
25
56,1
35
36,6
25
10,0
60
13,8
W
30
8,0
70
9,7
40
5,2
80
6,9
50
3,5
60
2,4
90
5,0
100
3,7
T1, T2, T3, T4
T5
T
Fig. 48: Temperature / resistance
W: Resistance (k
W)
T: Temperature (°C)
47
REMKO BL...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 shutdown periods.
Maintenance
n It is recommended that you take out a maintenance contract with an annual service from an appropriate specialist firm.
This enables you to ensure the operational reliability of the plant at all times!
NOTICE!
Statutory regulations require an annual leak test for the cooling cycle dependant on the refrigerant quantity. Inspection and documentation of the work performed is to be carried out by specialist technicians.
Type of task
Checks/maintenance/inspection
General
Check voltage and current
Check function of compressor/fans
Dirt on condenser/evaporator
Check refrigerant fill quantity
Check condensate drainage
Check insulation
Check moving parts
Sealing test for cooling cycle
1)
See note
Commissioning
l l l l l l l l l
Monthly
l
Every 6 months
l l
Yearly
l l l l l l 1)
48
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
3.
Raise the filter and pull it out in a downwards
4.
Clean the filter with a commercially available
vacuum cleaner (Fig. 50). To do so, turn the
dirty side so it is facing upwards.
5.
Dirt can also be removed by carefully cleaning with lukewarm water and mild
cleaning agents (Fig. 51). The dirty side
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.
7.
Carefully insert the filter. Ensure that it locates correctly.
8.
Close the front side as described above in reverse order.
9.
Switch the power supply back on.
10.
Switch the unit back on.
Cleaning the condensate pump (accessories)
The indoor unit may contain an optional integrated or separate condensate pump, which pumps out any accumulated condensate into higher positioned drains.
Observe the care and maintenance instructions in the separate operating manual.
Fig. 49: Folding the grill upwards
Fig. 50: Cleaning with a vacuum cleaner
Fig. 51: Cleaning with lukewarm water
49
REMKO BL...DC
13 Exploded view and spare parts lists
13.1 Exploded view - Indoor unit
Fig. 52: Exploded view of the unit BL 262-352 DC IT
We reserve the right to modify the dimensions and design as part of the ongoing technical development process.
50
13.2 Spare parts list - Indoor unit
No. Designation
1 Front panel, complete
2 Air filter, set
3 Circuit board, display
4 Swing motor
5 Air exhaust fins, set
6 Housing incl. condensate tray
7 Evaporator
8 Fan wheel
9 Fan motor
10 Control board
11 IR remote control
12 Ambient air probe
13 Evaporator probe
14 Quick-release coupling set, indoor unit
Spare parts not illustrated
BL 262 DC IT BL 352 DC IT
On request by providing the serial number
Ion generator module
On request by providing the serial number
When ordering spare parts, please always state the serial no., unit number and unit type (see name plate)!
51
REMKO BL...DC
13.3 Exploded view - Outdoor unit
Fig. 53: Exploded view of the unit BL 262-352 DC AT
We reserve the right to modify the dimensions and design as part of the ongoing technical development process.
52
13.4 Spare parts list - Outdoor unit
No. Designation
1 Front panel
2 Fan blade, condenser
3 Fan motor, condenser
4 Condenser
5 Cover panel
6 Side part
7 Compressor, cpl.
8 Shut-off valve, suction pipe
9 Shut-off valve, liquid pipe
10 Reversing valve
11 E-box, cpl., incl. control board
12 Choke
13 Temperature probes, set
14 Quick-release coupling set, outdoor unit
15 Refrigerant piping incl. quick-release coupling 3m
15 Refrigerant piping incl. quick-release coupling 5m
15 Refrigerant piping incl. quick-release coupling 8m
BL 262 DC AT BL 352 DC AT
On request by providing the serial number
When ordering spare parts, please always state the serial no., unit number and unit type (see name plate)!
14 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 off the electrical power supply to the unit.
4.
Cover the unit as far as possible with plastic foil in order to protect it from the influences of weather.
Permanent shutdown
Ensure that 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.
53
REMKO BL...DC
15 Index
A
Alarms
Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Possible causes . . . . . . . . . . . . . . . . . . . . . . 38
Remedial measures . . . . . . . . . . . . . . . . . . . 38
Assembly
Strip foundation . . . . . . . . . . . . . . . . . . . . . . 29
C
Care and maintenance . . . . . . . . . . . . . . . . . . . 48
Cleaning
Air filter for indoor unit . . . . . . . . . . . . . . . . . 49
Condensate pump . . . . . . . . . . . . . . . . . . . . 49
Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Condensate drainage connection and safe
drainage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Condensate pump, electrical wiring diagram . . 33
Customer service . . . . . . . . . . . . . . . . . . . . . . . 38
D
Disposal of equipment . . . . . . . . . . . . . . . . . . . . . 7
E
Electrical drawings . . . . . . . . . . . . . . . . . . . 34, 35
Electrical wiring . . . . . . . . . . . . . . . . . . . . . . . . . 31
Electrical wiring diagram . . . . . . . . . . . . . . . . . . 32
Electrical wiring diagram, condensate pump . . 33
Environmental protection . . . . . . . . . . . . . . . . . . . 7
Exploded view of the unit . . . . . . . . . . . . . . 50, 52
F
Function test of the cooling and heating modes 37
Functional checks . . . . . . . . . . . . . . . . . . . . . . . 36
I
Infrared remote control . . . . . . . . . . . . . . . . . . . 14
Installation location, selection . . . . . . . . . . . . . . 23
Installation materials . . . . . . . . . . . . . . . . . . . . . 22
Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
K
Keys on the remote control . . . . . . . . . . . . . . . . 15
M
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Malfunction on the indoor unit . . . . . . . . . . . . . . 40
Manual mode . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Minimum clearances . . . . . . . . . . . . . . . . . . . . . 24
O
Oil return measures . . . . . . . . . . . . . . . . . . . . . . 25
Operation
Infrared remote control . . . . . . . . . . . . . . . . . 14
Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Ordering spare parts . . . . . . . . . . . . . . . . . . 51, 53
P
Performance charts
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . 11, 12
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . 11, 12
Propellant in accordance with Kyoto Protocol . . . 9
Q
Quick-release couplings . . . . . . . . . . . . . . . . . . 27
R
Remote control
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
S
Safe drainage in the event of leakages . . . . . . . 30
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 . . . . . . . . . . . . 23
Shutdown
Permanent . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Temporary . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Spare parts list . . . . . . . . . . . . . . . . . . . . . . 51, 53
T
Test run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Troubleshooting and customer service . . . . . . . 38
U
Unit installation . . . . . . . . . . . . . . . . . . . . . . . . . 26
W
Wall bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Wall opening . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
54
REMKO INTERNATIONAL
… and also right in your neighbourhood!
Make use of our experience and advice
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.
SFlb
Customer 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 GmbH & Co. KG
Air conditioning and heating technology
Im Seelenkamp 12 D-32791 Lage
Postfach 1827
Telephone
Telefax
Website
D-32777 Lage
+49 5232 606-0
+49 5232 606-260 [email protected]
www.remko.de
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