REMKO RVT 262 User manual

Assembly and operating instructions
Read the instructions prior to performing any task!
REMKO RVT-ARCTIC-WP
RVT 262, RVT 352, RVT 522, RVT 682
Inverter heat pump with split design
and frost protection function
0060-2014-11D Edition 5, en_GB

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

Table of contents
1 Safety instructions and user manual.................................................................................................. 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
2.3 Sound pressure level.................................................................................................................... 11
2.4 Characteristic curves heating and cooling.................................................................................... 12
3 Design and function............................................................................................................................ 16
3.1 Characteristics of REMKO inverter air conditioner with split design............................................. 16
3.2 Unit description............................................................................................................................. 18
4 Operation............................................................................................................................................. 19
5Installation instructions for qualified personnel.............................................................................. 27
5.1 Important notes prior to installation............................................................................................... 27
5.2 Wall openings................................................................................................................................ 27
5.3 Installation materials..................................................................................................................... 27
5.4 Installation indoor unit................................................................................................................... 27
5.5 Installation, mounting outdoor unit................................................................................................ 28
5.6 Minimum clearances..................................................................................................................... 30
5.7 Oil return measures....................................................................................................................... 31
5.8 Connection variants for the indoor unit......................................................................................... 31
5.9 Wall bracket for the indoor unit..................................................................................................... 32
6 Installation........................................................................................................................................... 33
6.1 Installation of the indoor unit......................................................................................................... 33
6.2 Connecting the refrigerant piping.................................................................................................. 33
6.3 Additional notes on connecting the refrigerant piping................................................................... 35
6.4 Leak testing................................................................................................................................... 36
6.5 Adding refrigerant.......................................................................................................................... 36
7 Condensate connection and safe drainage...................................................................................... 37
8 Electrical wiring................................................................................................................................... 39
8.1 General Information...................................................................................................................... 39
8.2 Connecting the indoor unit............................................................................................................ 39
8.3 Connecting the outdoor unit.......................................................................................................... 40
8.4 Electrical connection diagram....................................................................................................... 40
8.5 Electrical drawings........................................................................................................................ 41
9 Before commissioning....................................................................................................................... 46
3

10 Commissioning................................................................................................................................... 46
11 Troubleshooting, diagnosis and customer service......................................................................... 48
11.1 Troubleshooting and customer service....................................................................................... 48
11.2 Diagnosis and solution indoor unit.............................................................................................. 50
12 Care and maintenance........................................................................................................................ 58
13 Shutdown............................................................................................................................................. 60
14 Exploded view and spare parts lists................................................................................................. 61
14.1 Exploded view - Indoor unit......................................................................................................... 61
14.2 Spare parts list - indoor unit........................................................................................................ 62
14.3 Exploded view - Outdoor unit...................................................................................................... 63
14.4 Spare parts list - outdoor unit...................................................................................................... 64
15 Index..................................................................................................................................................... 65
REMKO RVT-ARCTIC-WP
4

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

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

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

2 Technical data
2.1 Unit data
Series RVT 262 RVT 352 RVT 522 RVT 682
Operating mode Inverter wall-mounted room air conditioner combination for
cooling and heating
Nominal heat capacity 2) kW 3,11
(1,00-4,10)
3,71
(1,00-4,60)
5,28
(1,60-6,30)
7,30
(2,90-8,40)
Energy efficiency ratio SCOP 4) 4,0 4,0 3,9 3,8
Rated elec. pwr consum. heat. 2) kW 0,74 0,90 1,25 2,03
Rated elec. curr. consum. heat. 2) A3,24 3,94 5,43 8,80
Power consump., annual, QHE 3) kWh 1050 1295 1867 2395
Energy efficiency ratio, heat. 2) A+ A+ A A
Nominal cooling output 1) kW 2,92
(1,10-3,70)
3,81
(1,10-4,20)
5,20
(1,60- 6,30)
6,80
(3,20-7,60)
Energy efficiency size SEER 1) 7,0 6,3 6,9 5,8
Rated elec. pwr consum. cool. 1) kW 0,72 1,51 1,67 2,45
Rated elec. curr. consum. cool. 1) A3,14 6,59 7,27 10,60
Power consump., annual, QCE 3) kWh 145 206 259 453
Energy efficiency ratio, cooling 1) A++ A++ A++ A+
Max. power consumption kW 2,10 2,10 2,85 3,60
Max. current consumption A 9,50 9,50 13,00 16,50
EDP no. 1623104 1623114 1623124 1623134
Data specific to indoor unit IT RVT 262 RVT 352 RVT 522 RVT 682
Approx. application area m380 110 160 230
Adjustment range, room temp. °C +17 bis +30 +8 with "FP"-function
Operating range °C +17 to +32
Air flow volume per level m³/h 420/570/650 440/580/750 750/900/1150 1050/1280/1450
Sound pressure level per level 5) dB (A) 28/36/40 32/37/42 33/38/46 42/45/50
Sound pressure level,
Silent/Turbo mode5) dB (A) 22/42 23/44 25/48 27/52
Sound power max. dB(A) 52 56 56 63
Enclosure class IP X 0
Condensate drainage connection mm 18
REMKO RVT-ARCTIC-WP
8

Data specific to indoor unit IT RVT 262 RVT 352 RVT 522 RVT 682
Dimensions: H/W/D mm 280/750/198 280/835/198 315/990/218 340/1186/258
Weight kg 7 9 12 16
EDP no. 1623109 1623119 1623129 1623139
Data specific to outdoor unit AT RVT 262 RVT 352 RVT 522 RVT 682
Power supply V/Ph/
Hz 230 / 1~ / 50
Operating range, cooling °C +5 bis +50
Operating range, heating °C -20 to +34
Air flow rate, max. m³/h 1800 1800 2200 2700
Enclosure class IP 24
Sound power max. dB (A) 59 63 61 67
Sound pressure level 5) dB (A) 48 52 50 56
Refrigerant 6) R 410A
Refrigerant, basic capacity kg 1,1 1,1 1,25 2,25
Max. operating pressure kPa 4200 / 1500
Refrigerant, additional quan. >5m g/m 20 40
Refrigerant piping, max. length m 25 25 30 45
Refrigerant piping, max. height m 10 10 15 20
Refrigerant connection
Liquid line
Zoll
(mm) 1/4 (6,35) 1/4 (6,35) 1/4 (6,35) 3/8 (9,52)
Refrigerant connection
Suction pipe
Zoll
(mm) 3/8 (9,52) 3/8 (9,52) 1/2 (12,70) 5/8 (15,90)
Dimensions: H/W/D mm 590/760/285 700/845/320
Weight kg 35 35 36 50
Ref. no. 1623108 1623118 1623128 1623138
1) Air inlet temp. TK 27°C / FK 19°C, outside temp. 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 according to Kyoto protocol, GWP 1975 (for further info, see chapter "Adding refrig.")
9

2.2 Unit dimensions
Outdoor units
A
BC
D
E
Fig. 1: Outdoor unit dimensions RVT 262-682 AT
Dimensions (mm) A B C D E
RVT 262-522 590 760 285 530 290
RVT 682 700 845 320 560 335
Indoor units
A
B
C
Fig. 2: Indoor unit dimensions RVT 262-682 IT
Dimensions (mm) A B C
RVT 262 280 750 198
RVT 352 280 835 198
RVT 522 315 990 218
RVT 682 340 1186 258
We reserve the right to modify the dimensions and design as part of the ongoing technical development
process.
REMKO RVT-ARCTIC-WP
10

2.3 Sound pressure level
1m1m 5m 10m
1m 5m 10m
Fig. 3: Distance-dependent sound pressure level for the outdoor unit in relation to installation type, in accord-
ance with the drawing
Distance-dependent sound pressure level *)
Unit type Sound power max.
[dB(A)]
Installation type, in
accordance with the
drawing
1m
[dB(A)]
5m
[dB(A)]
10m
[dB(A)]
15m
[dB(A)]
RVT 262 59 In free field 51,0 37,0 31,0 27,5
In front of a wall 54,0 40,0 34,0 30,5
RVT 352 63 In free field 55,0 41,0 35,0 31,5
In front of a wall 58,0 44,0 38,0 34,5
RVT 522 61 In free field 53,0 39,0 33,0 29,5
In front of a wall 56,0 42,0 36,0 32,5
RVT 682 67 In free field 59,0 45,0 39,0 35,5
In front of a wall 62,0 48,0 42,0 38,5
*) All information without guarantee. Exact sound values must be determined by an expert!
11

2.4 Characteristic curves heating and cooling
Heating capacity RVT 262
0,00
1,00
2,00
3,00
4,00
5,00
12 7 2 0 -7 -10 -15
2
1
3
A[°C]
Fig. 4: Characteristic curves heating RVT 262 (specification at indoor temperature 20 °C)
A: Outdoor temperature
1: COP
2: Heating capacity in kW
3: Power consumption in kW
Outdoor temperature in °C 12 7 2 0 -7 -10 -15
Heating capacity in kW 3,33 2,93 2,79 2,65 2,36 2,22 1,91
Power consumption in kW 0,76 0,75 1,26 1,19 1,11 1,11 1,05
COP 4,37 3,91 2,21 2,23 2,12 2,00 1,82
Cooling capacity RVT 262
0,00
1,00
2,00
3,00
4,00
5,00
6,00
21 25 30 35 40 45 50
2
1
3
A[°C]
Fig. 5: Characteristic curves cooling RVT 262 (specification at indoor temperature 27/19 °C)
A: Outdoor temperature
1: EER
2: Cooling capacity in kW
3: Power consumption in kW
Outdoor temperature in °C 21 25 30 35 40 45 50
Cooling capacity in kW 2,80 2,99 3,01 2,90 2,49 2,36 2,30
Power consumption in kW 0,57 0,61 0,67 0,73 0,74 0,75 0,78
EER 4,93 4,87 4,51 3,97 3,36 3,13 2,94
REMKO RVT-ARCTIC-WP
12

Heating capacity RVT 352
0,00
1,00
2,00
3,00
4,00
5,00
12 7 2 0 -7 -10 -15
2
1
3
A[°C]
Fig. 6: Characteristic curves heating RVT 352 (specification at indoor temperature 20 °C)
A: Outdoor temperature
1: COP
2: Heating capacity in kW
3: Power consumption in kW
Outdoor temperature in °C 12 7 2 0 -7 -10 -15
Heating capacity in kW 4,21 3,70 3,53 3,35 2,98 2,80 2,42
Power consumption in kW 0,93 0,91 1,53 1,44 1,35 1,35 1,27
COP 4,55 4,07 2,31 2,33 2,21 2,08 1,90
Cooling capacity RVT 352
0,00
1,00
2,00
3,00
4,00
5,00
21 25 30 35 40 45 50
2
1
3
A[°C]
Fig. 7: Characteristic curves cooling RVT 352 (specification at indoor temperature 27/19 °C)
A: Outdoor temperature
1: EER
2: Cooling capacity in kW
3: Power consumption in kW
Outdoor temperature in °C 21 25 30 35 40 45 50
Cooling capacity in kW 3,57 3,81 3,84 3,70 3,18 3,01 2,93
Power consumption in kW 0,92 0,99 1,08 1,18 1,20 1,22 1,26
EER 3,89 3,84 3,56 3,14 2,65 2,47 2,32
13

Heating capacity RVT 522
0,00
1,00
2,00
3,00
4,00
5,00
6,00
7,00
12 7 2 0 -7 -10 -15
2
1
3
A[°C]
Fig. 8: Characteristic curves heating RVT 522 (specification at indoor temperature 20 °C)
A: Outdoor temperature
1: COP
2: Heating capacity in kW
3: Power consumption in kW
Outdoor temperature in °C 12 7 2 0 -7 -10 -15
Heating capacity in kW 5,84 5,13 4,89 4,64 4,13 3,88 3,35
Power consumption in kW 1,30 1,28 2,15 2,02 1,89 1,89 1,79
COP 4,49 4,01 2,27 2,29 2,18 2,05 1,87
Cooling capacity RVT 522
0,00
1,00
2,00
3,00
4,00
5,00
6,00
21 25 30 35 40 45 50
2
1
3
A[°C]
Fig. 9: Characteristic curves cooling RVT 522 (specification at indoor temperature 27/19 °C)
A: Outdoor temperature
1: EER
2: Cooling capacity in kW
3: Power consumption in kW
Outdoor temperature in °C 21 25 30 35 40 45 50
Cooling capacity in kW 4,92 5,25 5,30 5,10 4,38 4,15 4,04
Power consumption in kW 1,21 1,30 1,42 1,55 1,57 1,60 1,66
EER 4,08 4,03 3,73 3,29 2,78 2,59 2,43
REMKO RVT-ARCTIC-WP
14

Heating capacity RVT 682
0,00
1,00
2,00
3,00
4,00
5,00
6,00
7,00
8,00
9,00
12 7 2 0 -7 -10 -15
2
1
3
A[°C]
Fig. 10: Characteristic curves heating RVT 682 (specification at indoor temperature 20 °C)
A: Outdoor temperature
1: COP
2: Heating capacity in kW
3: Power consumption in kW
Outdoor temperature in °C 12 7 2 0 -7 -10 -15
Heating capacity in kW 8,34 7,33 6,99 6,63 5,90 5,55 4,79
Power consumption in kW 2,06 2,03 3,41 3,21 3,00 3,00 2,84
COP 4,04 3,61 2,05 2,07 1,96 1,85 1,69
Cooling capacity RVT 682
0,00
1,00
2,00
3,00
4,00
5,00
6,00
7,00
8,00
21 25 30 35 40 45 50
2
1
3
A[°C]
Fig. 11: Characteristic curves cooling RVT 682 (specification at indoor temperature 27/19 °C)
A: Outdoor temperature
1: EER
2: Cooling capacity in kW
3: Power consumption in kW
Outdoor temperature in °C 21 25 30 35 40 45 50
Cooling capacity in kW 6,79 7,24 7,30 7,03 6,03 5,72 5,57
Power consumption in kW 1,71 1,84 2,00 2,19 2,22 2,26 2,35
EER 3,98 3,93 3,64 3,21 2,72 2,53 2,37
15

3 Design and function
3.1 Characteristics of REMKO
inverter air conditioner with
split design
REMKO inverter technology
The air conditioner's condenser is equipped with a
requirement-dependent speed control system. The
power control on conventional air conditioners pro-
vides only two states, either ON (full output) or
OFF (no output). The air conditioner turns on
below a specified temperature and turns off when
this temperature is reached. This kind of heat regu-
lation is very inefficient. Heat regulation in the
Remko inverter air conditioner is modulated to the
actual need. The electronics system has an inte-
grated frequency-converter which serves to modify
the condenser speed and the speed of the blower
as required. The condenser works at a higher
speed when under full load than under partial load.
The lower speeds ensure a longer operational life-
time for the components, improved coefficient of
performance and lower noise. Lower speeds also
result in lower energy consumption (electricity) and
longer service life. I.e.: inverter air conditioner will
run practically throughout the cooling season. In
all, the highest efficiency possible.
Thanks to innovative inverter technology, this
air conditioner will almost always operate by
adapting its cooling capacity to the actual
requirements of the cooling season, and will in
fact turn itself off when heat is removed. The
same applies in the opposite direction with
heating.
1/3 When it is switched on, the inverter only requires
one-third of the time of conventional systems
Time
Minimal temperature fluctuations
mean energy savings
Conventional
Inverter
Temperature
Fig. 12: Modern inverter technology
REMKO RVT-ARCTIC-WP
16

Cooling mode
Because of circuit reversal, heating is also pos-
sible. In heating mode, the components of the
refrigeration circuit are used to produce warm air
thus in the building can be heated.
The comfort zone in the illustration below shows
which values for temperature and humidity are
considered comfortable for people. This range
should ideally be met when heating or air-condi-
tioning buildings.
10 12 14 16 18 20 22 24 26 28 30
uncomfortably
humid
comfortable
still comfortable
uncomfortably
dry
Relative humidity in %
Room air temperature in °C
Fig. 13: Comfort zone
17

3.2 Unit description
The RVT 262-682 room air conditioners have a
REMKO RVT...AT outdoor unit as well as an
RVT...IT indoor unit.
In cooling mode, the outdoor unit serves to output
the heat extracted by the indoor unit from the room
being cooled. In heating mode, the heat taken up
by the outdoor unit can be discharged by the
indoor unit into the room to be heated. In both
operating modes, the output produced by the com-
pressor precisely matches requirements, and
thereby regulates the nominal temperature with
minimal temperature deviations. This "inverter
technology" results in energy savings over conven-
tional split systems and also reduces noise emis-
sions to a particularly low level. The outdoor unit
can be installed in an outdoor area or, providing
that certain requirements are met, an indoor area.
The indoor unit is designed to be mounted high up
on the wall, in indoor areas. It is operated by an
infrared remote control.
The outdoor unit consists of a cooling cycle with
compressor, fin condenser, condenser fan,
reversing valve and throttle element. The outdoor
unit is controlled by the controller in the indoor unit.
The indoor unit consists of a fin evaporator, evapo-
rator fan, controller and condensate tray.
Floor brackets, wall brackets, refrigerant piping and
condensate pumps are available as accessories.
21
4
3
Fig. 14: Cooling cycle diagram for indoor unit
1: Evaporator
2: Evaporator fan
3: Suction pipe connection
4: Liquid line connection
2
1
4
3
5
7
8
9
6
Fig. 15: 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
1
7
8
9
B
A
4
3
5
6
2
3
5
Fig. 16: 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.
REMKO RVT-ARCTIC-WP
18

4 Operation
The indoor unit is easily operated using the
standard infrared remote control. The indoor unit
beeps to acknowledge the correct transmission of
data. If it is not possible to program the indoor unit
with the remote control, then it can also be man-
ually operated.
Manual mode
The indoor units can be put into operation man-
ually. After the air inlet screen has been opened,
the inner recessed key can be pressed and auto-
matic 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 inter-
rupt manual mode.
Infrared remote control
The infrared remote control sends the programmed
settings a distance of up to 6m to the receiver of
the indoor unit. Data will only be received correctly
if the remote control is pointed at the receiver and
no objects are obstructing the transmission path.
Two AAA batteries must be inserted into the
remote control in preparation. To do so, remove
the flap from the battery compartment and insert
the batteries the correct way around (see mark-
ings). Removing the batteries causes all stored
data to be lost. The remote control will then access
the default settings, which you are free to cus-
tomise at any time.
max. 6 m
Fig. 17: 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 func-
tion is excluded from our recommendation!
19

Display on indoor unit
The display illuminates according to the settings.
2
14
365
Fig. 18: Display on indoor unit
1: Ionic function
2: Defrost indicator
3: Operating lamp
4: Timer activated / deactivated
5: Signal receiver
6: Display for setpoint
Keys on the remote control
2
1
4
3
5
7
9
12
14
6 8
10
11
13
Fig. 19: 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 pos-
sible.
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 speed.
4
"SLEEP/FRESH" key
"SLEEP" key
Pressing this button 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.
REMKO RVT-ARCTIC-WP
20