REMKO RVS 130 DC, RVS 80 DC, RVS 180 DC, RVS 50 DC Operating And Installation Instructions

Operating and
installation instructions

REMKO RVS series

Chiller

RVS 50 DC, RVS 80 DC, RVS 130 DC, RVS 180 DC

Edition EN - N12 Read the instructions prior to performing any task!

Content

Safety notes

Environmental protection and recycling

Guarantee

Transportation and packaging

Unit description

Cooling cycle

Service limits

Operation

Installation instructions for qualified personnel

Installation

Care and maintenance

Shutdown

Electrical wiring

4

4

4

5

5

6

7

8-18

19

20-25

26

26

27-28

R410A

Refrigerant

Electrical drawings

Leak testing

Before commissioning

Commissioning

Overhaul and repair

Troubleshooting and customer service

Resistance table

Dimensions

Technical data

Carefully read this original operating manual prior to commissioning/
using the units!
This operating manual is a translation of the German original.
This manual is an integral part of the unit and must always be kept
in the vicinity of the installation location or on the unit itself.

Subject to modifications. No liability accepted for errors or misprints!

29-32

33

33-34

35

36

37-40

40

41

42

3

REMKO series RVS

Safety notes

Carefully read the operating
manual before placing the unit
in service for the first time. It
contains useful tips and notes as
well as hazard warnings to prevent
injury to persons or material
damage
the directions in this manual can
endanger persons, the environment
and the equipment itself and will
void any claims for liability.

■

Keep this manual and
the refrigerant data sheet near
the unit.

■ Only qualified personnel may

set up and install the units and
components.

■ The set-up, connection, and

operation of the unit and its
components must take place
in accordance with the operating
conditions stipulated in this
manual and comply with all
applicable local regulations.

■ Stationary units must be

permanently installed for
operation.

■ Modification of the units

and components supplied by
REMKO is not permitted and
can cause malfunctions.

■ Units and components may

not be operated in areas where
there is an increased risk of
damage. Observe the minimum
clearances.

■ The electrical power

supply is to be adapted to
the requirements of the units.

■ The operational safety of

the units and components
is only assured if they are
fully assembled and used as
intended. Safety devices may
not be modified or bypassed.

. Failure to follow

■ Do not operate units or

components if there are obvious
defects or signs of damage.

■ All housing parts and unit

openings, e.g. air inlets and
outlets, must be free from
foreign objects, liquids, or gases.

■ The units and components must

be kept at an adequate distance
from flammable, explosive,
combustible, abrasive and dirty
areas or atmospheres.

■ Contact with some parts of

the unit or components can
result in burns or other injuries.

■ Installation, repair and

maintenance work may only
be carried out by authorised
specialists. Visual inspections
and cleaning can be performed
by the operator as long as
the unit is disconnected from
the power.

■ Take appropriate precautions

when performing installation,
repair or maintenance work
or cleaning the unit to make
sure the unit does not pose
a danger to persons.

■ The units and components

should not be exposed to any
mechanical load or extreme
levels of humidity.

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.

Disposing of the units
and their components

Only recyclable materials are used
in the manufacture of the units
and components.
Help protect the environment
by ensuring that the units
or components (for example
batteries) are not disposed
of in household waste, but
only in accordance with
local regulations and in an
environmentally safe manner,
e.g. using authorised disposal and
recycling specialists or council
collection points.

Guarantee

In order to make warranty claims,
it is essential that the ordering
party or their representative
complete and return the "certificate
of warranty" and “commissioning
report” to REMKO GmbH &
Co. KG at the time when the
equipment was purchased and
commissioned. The warranty
conditions are listed in the "General
terms and 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.

4

Transportation and packaging

The units are shipped in sturdy
transport packaging. Immediately
check the units on delivery and
make a note of any damage or
missing parts on the delivery note.
Inform the forwarding agent and
contractual partner.

Claims under guarantee made
at a later date will not be accepted.

Unit description

In cooling mode, the unit (an
air-cooled chiller) takes heat out
of the operating medium to be
cooled, water or a mixture of
water and glycol, within a closed
medium cycle in the evaporator
(plate heat exchanger) and passes
it on to the closed cooling cycle.
As a consequence of the heat
exchange, the medium cools and
the refrigerant in the cooling cycle
vaporises under low pressure.
The gaseous refrigerant
enters an electric compressor
(scroll construction) which
increases the pressure and the
temperature of the refrigerant.
The gaseous refrigerant is
led into a finned condenser,
which, as a consequence of
the heat exchange, condenses
the refrigerant under high
pressure to a liquid. The air
emerging at the condenser heats
the environment. The liquid
refrigerant is fed by means of
a variable injector valve back to
the evaporator where the circuit
begins again.
A return temperature dependent,
seamless controller, which ensures
the unit's operation and all of
the safety functions, is used

to control the cooling capacity.
A potential-free contact provides
for remote enabling.
The unit is designed for outdoor
installation. Under certain
circumstances, it can also be used
in indoor areas.
The unit cooling cycle comprises
an evaporator, compressor,
electronic injection valve,
condenser, condenser fan, pressure
transducer, high and low pressure
switches and a 4-way changeover
valve for heating mode.
The medium cycle comprises
a tube bundle heat exchanger,
a circulation pump and a flow
switch.

Vibration dampers, cabled remote
controls and glycol concentrate are
available as accessories.

Intended use

Depending on the model and
the unit, the units are only
intended to be used as a chiller
for the cooling of the operating
medium water or a water-glycol
mixture within a closed medium
cycle.
Any different or additional
use is a non-intended use.
The manufacturer/supplier
assumes no liability for damages
arising from 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.

Proper handling

Insofar as intervention is required
in the refrigerant circuit of the unit
during maintenance or repair
work, all work shall be carried
out exclusively by persons and
companies who have a certificate
in accordance with the prerequisites
of EC ordinance no. 517/2014
of the European Council.

Applicability

Within the course of continuous
further development of all
products, REMKO GmbH & Co.
KG reserve the right to carry
out technical changes
to the units as well as updates
to the documentation.
The documentation on the unit
(name plates, wiring diagrams,
etc.) shall be considered as part
of the overall documentation.

Ecological design directive

The regulation (EU) 2016/2281
(LOT 21) approved by
the European Commission is
the enforcement action for
the ecological design directive
2009/125/EC, whose principal
objective is to reduce the primary
energy demand in the European
Union by 2030 and to reduce
the emissions of hazardous
substances associated with this.

The chillers from REMKO
comply with the applicable
energy requirements from
the ecological design directive.
The product datasheet required
per the ordinance, to verify
ERP conformity is attached
as a separate document and is
also available for download from
www.remko.de.

5

REMKO series RVS

Cooling cycle

6

Legend:

1 Compressor
2 Schrader valve
3 High-pressure switch
4 4-way changeover valve
5 Low-pressure switch

3

4

5

2

2

7

6 Tube bundle heat exchanger
7 Filter dryer
8 Electronic expansion valve
9 Fin condenser

2

2

9

1

8

7

6

Service limits

Wassereintrittstemperatur

Wassereintrittstemperatur

RVS DC units are chillers with heat pump function. The primary purpose of the units here is cooling operation,
whilst the heating function represents an additional function by means of reverse circulation.

For trouble-free unit operation and compliance with the legal warranty conditions, it is essential that the unit
is be used within its respective operational limits. These are shown in the following diagram. Further information
on this can likewise be found in the technical data.

Service limits

30

25

20

15

10

5

0

-5

-20 -15 -10 -5 0 10 15 20 25 30 35

-25

Umgebungstemperatur

A

B

5

Ambient temperature

40 45

55

50

60

55

50

45

40

35

30

Water inlet temperature Water inlet temperature

25

-20 -15 -10 -5 0 10 15 20 25 30 35

-25

Legend

A Standard version
B Low-temperature version

A

A

5

Umgebungstemperatur

Ambient temperature

40 45

55

50

7

REMKO series RVS

Operation

Display/control unit

The controller of the chiller is to be operated with the touch pad, which is located right on the unit in a housing
protected from splashed water. To open the housing, press the "PRESS" button on the right-hand side
of the housing. After operating the controller, close the housing again in order to prevent water ingress.
If there is no activity on the controller for longer than 60 seconds, the display switches to stand-by mode and
no values are displayed. The display can be activated by touching any part of the display.

Button symbol Designation Description

Mode key

On/off key

Up arrow key Values can be adjusted and pages scrolled through with the up arrow key

Operating modes can be changed, temperature settings changed and parameters set
by pressing the mode key

The system can be switched on and off with the On/Off key. In addition, it is also
possible to cancel the current operation and return to the previous operating stage

Down arrow key Values can be adjusted and pages scrolled through with the down arrow key

Clock key The clock key is used to set up and execute timer functions

8

Button symbol Designation Description

Cooling mode Is displayed when the system is in cooling mode

Heating mode Is displayed when the system is in heating mode

Defrosting operation

Compressor Appears when the compressor is running

Circulation pump Appears when the circulation pump is running

Fan Appears when the fan is running

Timer Is displayed with the activation of a timer

Water outlet Appears when the digital display shows the water outlet temperature

Water inlet Appears when the digital display shows the water inlet temperature

Malfunction Is displayed if there is a fault present

Temperature (°C) Appears when the digital display shows the a temperature in °C

Appears during the defrosting procedure (only in heating mode)

Temperature (°F) Appears when the digital display shows the a temperature in °F

Setting Is displayed if the value is set

Seconds Appears when the digital display shows seconds

Minutes Appears when the digital display shows minutes

Hours Appears when the digital display shows hours

Pressure Appears when the digital display shows a pressure

Medium flow rate Appears when the digital display shows a medium flow rate

9

REMKO series RVS

Switching the unit on

The unit is switched on by pressing the key for 1 second.

A further 1 second press of the
without being used, the display darkens.

key in the start screen will switch the unit back off again. After one minute

Setting the operating mode

Before setting the operating mode, this must be implemented by installing/removing a wire jumper
on the corresponding terminals (see chapter Electrical connection).

To set the operating mode, press the key on the start screen for 1 second. The mode can thus be set to either

cooling

or heating .

Setting the setpoint (return temperature)

To set the setpoint for the return temperature, briefly press the or key in the start screen. The display

flashes. Now the setpoint can be changed in steps of 0.5 with the same keys. Once the desired temperature is set,

confirm the input with the

If there is no activity for 20 seconds during the set-up process, the system automatically returns to the start screen

without changing any of the settings.

In order to cancel the adjustment process, press the

any of the values.

10

key. The value set will be saved and you are returned to the start screen.

key to return to the start screen without changing

Setting the time

To set the system time, briefly press the and keys simultaneously.

The

to flash. The hours can now be adjusted with the and keys.

Confirm the hours with the

The minutes can now be adjusted with the

Confirm again by briefly pressing the

If there is no activity for 20 seconds during the set-up process, the system automatically returns to the start screen

without changing any of the settings.

In order to cancel the adjustment process, press the

of the values.

key appears on the right-hand side of the screen. Press this briefly and the display for the hours starts

key and the minute display starts to flash.

and keys.

key. The settings are saved and you are returned to the start screen.

key to return to the start screen without changing any

11

REMKO series RVS

Saving timer programs

To save a timer program, briefly press the and keys simultaneously.

The

Press this for 2 seconds.

Now you can select a switch-on or switch-off point with the

ON 1 = Switch-on point for the first timer program

OFF 1 = Switch-off point for the first timer program

ON 2 = Switch-on point for the second timer program

OFF 2 = Switch-off point for the second timer program

Use the

The hours can now be adjusted with the

Confirm the hours with the

with the and keys.

Confirm again by briefly pressing the

To exit the timer menu, press the

In order to cancel the adjustment process press the

of the values.

key appears on the right-hand side of the screen.

and keys.

key to confirm your selection. The display for the hours starts to flash.

and keys.

key and the minute display starts to flash. The minutes can now be adjusted

key and the settings are saved.

key briefly

key to return to the start screen without changing any

12

If the system is deactivated and the time set for a switch-on point (ON1, ON2) is reached, the system activates
autonomously. It then carries out the operation with the settings before deactivating again.

If the system is activated and the time set for a switch-off point (OFF1, OFF2) is reached, the system de-activates
autonomously.

13

REMKO series RVS

Deleting timer programs

To delete a timer program, briefly press the and keys simultaneously.

The

Now you can select a switch-on or switch-off point that you wish to delete with the

ON 1 = Switch-on point for the first timer program

OFF 1 = Switch-off point for the first timer program

ON 2 = Switch-on point for the second timer program

OFF 2 = Switch-off point for the second timer program

Use the

The switch-on or switch-off point can now be deleted with a brief press of the

If the switch-on or switch-off point has been successfully deleted, the display shows - - : - - .

To return to the start screen, press the

key appears on the right-hand side of the screen. Press this for 2 seconds.

and keys.

key to confirm your selection. The display for the hours starts to flash.

key.

key briefly.

14

Malfunction indication

If a fault arises on the unit, the controller reports this automatically. The screen shifts to the fault display
and displays a fault code. The meanings of the various codes are listed in the Faults and fault causes chapter.

If multiple faults arise at the same time it is possible to switch between the fault displays with the
keys.

You can return to the start screen by briefly pressing the
If there is no activity for 10 seconds, the display automatically returns to the fault display.

If the fault is rectified, the controller will detect this and the fault display will disappear automatically.
If a major fault arises 3 times within a 30 minute period, the fault message must be manually reset after the cause
of the fault has been successfully removed.

A listing and definition of the major faults can be found in the Faults and fault causes chapter.

Once the cause of the fault has been removed the fault message must be manually reset by pressing the

for 2 seconds.

key.

and

key

15

REMKO series RVS

Calling up operating parameters

To display the operating parameters, briefly press the key on the start screen. Now the sensor values and other
operating conditions can be called up here. The
operating parameters.
The meaning of the individual parameters can be found in the list below.

and keys can be used to navigate between the different

ID Designation

U01 Water inlet temperature

U02 Water outlet temperature

U03 Suction gas temperature

U04 Heat gas temperature

U05 Ambient temperature

U06 Finned heat exchanger temp.

U07 Low pressure

U08 High pressure

U09 Throttle setting

Defrosting operation

ID Designation

U10 Current compressor frequency

U11 Required compressor frequency

U12 Suction gas overheating

U13 Heat gas overheating

U14 Current fan speed

U15 Not used

U16 Not used

U17 Driver status

In heating mode, condensate forms on the finned heat exchanger and this can freeze under certain conditions

and thus have an insulating effect. Because this can significantly impair the operation of the unit, the system

can switch to defrosting mode if required. The symbol for defrosting

the defrosting process. Once the defrosting process has ended, the symbol disappears and the system carries

on with normal operation.

16

is shown on the system display during

Anti-freeze protection

The anti-freeze protection is based primarily on 3 parameters:

ID Designation Factory setting

C01 Anti-freeze protection temperature 4 °C

C02 Anti-freeze protection low pressure 0 bar

C03 Anti-freeze protection temperature difference 2 °C

Cooling mode:
If the water outlet temperature (U02) is less than or equal to the anti-freeze protection temperature (C01)
or if the suction pressure (U07) is less than the anti-freeze protection low pressure (C02) for 10 seconds,
the system switches to anti-freeze protection.

Heating mode:
If the water outlet temperature (U02) is less than the water inlet temperature (U01) -2°C or less than the anti­freeze protection temperature (C01), the system switches to anti-freeze protection.

In both cases, the system only carries on with normal operation once the water outlet temperature rises
by the anti-freeze protection temperature difference or the suction pressure is higher than the anti-freeze
protection low pressure parameter.

The anti-freeze protection temperature is set to 4°C at the factory.

If glycol is used, it is possible to change the parameters to operate at lower temperatures, depending
on the glycol concentration. The table below can be helpful for this.

Adjustment is only possible after password input. For this purpose, please contact REMKO.

Glycol

content

Vol. % °C K

0 0 1 1 1 1

20 -9 0.960 0.995 1.040 1.19

35 -21 0.950 0.990 1.090 1.35

40 -26 0.925 0.985 1.105 1.51

Anti-freeze

protection

+-2°C

Correction factors when using a mixture of glycol* and

water

Cooling

capacity

L

Power

consumption

K

PE

Medium flow

rate

K

V

Pressure

loss

K

D

* We recommend using an ethylene glycol mixture. Observe the safety and product data sheets

for the type of glycol used.

! CAUTION

Use the required type
and mix ratio appropriate for
the application area to ensure
the freezing point.

! CAUTION

The product and safety data
sheets of the glycol type used
must be observed during use
and disposal.

17

REMKO series RVS

Setting the anti-freeze protection parameters

Press the key on the start screen briefly to access the operating parameters level.

Then press the

will be required for this. Now enter the password with the

Press the

Select the C01 parameter with the

The value can now be adapted to the glycol concentration with the help of the

A short press of the

key in the operating parameters level for 2 seconds to access the next level down. A password

and keys and confirm with the key.

key again on the next and next again windows.

and keys and confirm the selection with the key.

and keys.

key saves the setting.

18

Installation Instructions for qualified personnel

■

Important notes prior

to installation

■

Observe the manuals for
the indoor units and chillers
when installing the entire
system.

■

The indoor units and
chillers work independently.
A connecting line between
the two is not necessary.

■

Select an installation location
which allows air to flow
freely through the inlet and
outlet. See section "Minimum
clearances".

■

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.

■

Lift the unit only at intended
lifting points. Never apply loads
to the medium piping.

■

The medium connection lines,
valves and connections must be
insulated impervious to vapour
diffusion.

■

Seal off open lines to prevent
dirt getting in.

Comply with all regulations

governing structural and
building requirements and
conditions with regard to
the installation site.

■

In the selection of
the installation site, pay
attention to the site itself
and to any possible acoustic
reflection from surrounding
units.

■

To avoid the transmission of
vibrations to the installation
site, the units must be installed
on vibration absorbing material
or on vibration decoupled
foundations.
In doing so, make sure that
the lines are also vibration
decoupled.

■

If the installation site must
fulfil special sound emission
requirements, these must
be realised on-site when
appropriate adjustments can be
made.
In these cases, please consult an
appropriate acoustics expert.

■

The units are tested in
the factory and require
only electrical and hydraulic
installation by a suitable
specialist.

■

The unit must be kept upright
when transporting to a higher
elevation:

■

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.

■

If necessary, also insulate
the condensate drainage line
(only units with HP-function).
In dual systems with cooling
and heating modes, the
requirements of the current
Energy-Savings-Ordinance
(EnEV) are to be complied with.

Transport

■

Transport the unit in its original
packaging as close as possible
to the installation location.
You avoid transport damage
by doing so.

■

The units may only be moved
as installed (upright) using
appropriate transport gear

(Figure 1).

Secure against tipping!

■

Make all electrical connections
in accordance with applicable
DIN and VDE standards.

■

Always ensure the electrical
cables are properly connected
to the terminals.
Otherwise there is a risk of fire.

1 Standing transport

19

REMKO series RVS

Installation materials

The unit is fastened on vibration
dampers (accessories) to the floor
by means of bolts. The carrying
capacity of the bracket and
the wall must be taken into
account when fastening to
the wall.

Definition of the Danger Area

Access to the unit is only permitted
for authorised and trained persons.
If unauthorised persons can
approach the danger areas, these
areas must be identified with
corresponding signs, barriers, etc.

■

The external danger area
surrounds the unit up to
a distance of 2 m, measured
in all directions from
the unit housing.

■

The external danger area on­site can differ as a result of the
setup. The specialist company
performing the installation work
bears the responsibility for this.

■

The internal danger area is
located inside the machine
and can only be reached with
the use of an appropriate
tool. Access is prohibited for
unauthorised persons!

Installation

NOTE

Installation should only
be performed by authorised
specialists.

Disassembly of the transport
pallets

The units are supplied with
transport pallets for the purpose
of transportation. Remove these
before installation.

Transport packaging

Transport pallet

Unit installation

1. Install the vibration dampers
(accessories) under the unit
(accessories).

4. Ensure that structure-borne
sound is not transferred to parts
of the building.

5. Connect the medium piping.

6. Connect the unit electrically.

NOTE

The electrical connection
of the unit is to be established
by suitable specialist personnel
and in compliance with all
electrical safety regulations.
Compliance with VDE
regulations is essential.

NOTE

The dimensioning of the supply
line and the selection of
the customer-side unit safeguard(s)
is the responsibility of the specialist
company carrying out the work.
The unit manufacturer provides
no information regarding
the dimensioning of pipework
or the selection of fuses/breakers
as these are subject to local
conditions. All of the data required
for the selection can be found
in the technical data for the unit.

NOTE

20

2. Attach the unit to the building
where structurally permitted.
Refer to the Selecting
the installation location
chapter for this.

3. When installing the unit,
ensure that the minimum
clearances described
hereafter are complied with.
Any infringement of these
stipulated clearances can result
in a functional impairment
of the unit operation.

The selection of the RCD
breaker is the responsibility
of the specialist company
carrying out the work. Based
on theprovisions per VDE 0160,
E VDE 0100 Part 530 as well
as the guidelines of VdS 3501
and the safety regulations from
BGI 608, the use of an AC/
DC-sensitive, type-B RCD
is recommended for ensuring
standards-compliant personnel
and fire protection.

Selecting the installation location

The 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.

For external installation, please
observe the following instructions
to protect the unit from
the influence of the weather.

It is also possible to install
the unit in the interior of
the building. However, in this case
the circulation of the required air
flow volume (see technical data)
must be assured. Any change
to the air flow volume can result
in faults or damage to the unit.

Rain

Sun

The finned condenser gives
off heat in cooling mode.

Exposure to sunlight further
increases the temperature of
the fins and reduces the heat
released by the finned heat
exchanger.

The unit should, whenever
possible, be installed on the north
side of the building.

If necessary, take measures
to provide sufficient shade
(responsibility of customer).
This could be a small roof.

However, the discharging warm
air flow must not be affected by
the measures.

NOTE

Cooling capacity changes as
a consequence of ambient
conditions influenced by rain, sun,
wind, and snow, for example.

2 Minimum clearance to snow

Snow

20 cm

The unit should be at least 10 cm
off the ground when mounted on
the roof or ground.

Snow

The unit should be wall-mounted
in areas of heavy snowfall.

Installation should be at least
20 cm above the expected
level of snow to prevent snow
from entering the outdoor unit

(Figure 2).

Sun

The finned condenser gives off
heat in cooling mode.

Wind

3 Windbreak

If the unit is being installed
inwindy areas, ensure that
the warm outlet air is discharged
in the prevailing wind direction.
If this is not possible, it may be
necessary to install a windbreak
on-site (Figure 3).

Ensure that the windbreak does

Wind

not adversely affect the air intake
to the unit.

4 Installation inside buildings (cooling mode)

Warm air

Additional
fan

Light well

Warm air

Cold
fresh air

Light well

Exposure to sunlight further
increases the temperature
of the fins and reduces the heat
released by the finned heat
exchanger.

Chiller

21

REMKO series RVS

Connection of
the medium piping

■

The connection of the lines
on-site takes place on the front
side of the unit (operating side).

■

For the purpose of servicing,
connections must be equipped
with shut-off valves and flow
volumes adjusted using valves
for hydronic balancing.

■

Additional automatic bleed
valves are to be provided
in the supply and return at
the installation's highest point.

■

The medium piping may not
exert any structural load on
the unit.

■

The line connections may
not generate any thermal or
mechanical stresses on the unit
(cool lines or hold in place with
a second tool if required).

■

If the unit is at first to be
operated with only a part of
the entire system, the medium
flow for the missing system
components is to be simulated
using valves for hydronic
balancing.

■

The pipe sizing is to be
designed such that the
stipulated minimum flow
volume is achieved.

Observe minimum flow volume of
the chiller.
The lines are to be insulated against
vapour diffusion and, if necessary,
the current German energy-saving
ordinance (EnEV) must be observed.
UV resistance must be realised outdoors

Minimum/maximum flow volume

The cold water generator's
circulation pump generates
a constant medium flow.
The result is a loss of pressure in
the system and in the cold water
generator. The differential pressure
or flow switch in the chiller
measures the pressure loss over
the evaporator or the flow
of the medium and switches
the unit off if the flow rate drops
below the minimum medium
volume.
The medium flow rate limit
may likewise not be exceeded
(maximum flow volume). A 3-way
valve with bypass and a hydraulic
compensator to establish a primary
and secondary circuit or a volume
dependent bypass are necessary to
ensure a constant flow volume.

Pressure and temperature displays

The pressure and temperature
displays to be installed on-site
at the intake and outlet serve
to set the medium flow rate.

The display should be able to be
shut off.
Temperature sensors are located
in the chiller's medium inlet
and outlet. Sensor values can
be queried via the controller.

Valves for hydronic balancing

The calculated individual pressure
losses in the pipeline network
layout for each individual unit are
adjusted to the entire system with
valves for hydronic balancing to
be provided on-site. The nominal
flow rates for the medium
adjust to the necessary values as
a consequence of the pressure loss.

NOTE

To adjust the circulation pump, we
recommend that a main hydronic
balancing valve is provided in
the vicinity of the unit.

Fill and drain connection

A connection should be
provided in an area safe from
frost for the draining of pipe
lines (especially if water is
used as a medium). Applicable
local disposal ordinances must
be observed if glycol is used.

Medium piping

Medium piping can be made of
copper, steel or plastic. To minimise
pressure losses, only streamlined
fittings should be used.
When designing the layout,
the large flow volumes in cold
water systems, high pressure
losses in connection with water­glycol mixtures and the cold water
generator's minimum flow volume
must be taken into account.

22

Ensuring the minimum flow volume

Incorrect

installation

2-way valve 3-way valve

Correct

installation

Diaphragm expansion vessel (MAG)

Air bleeding valves

External medium storage tank

To avoid pressure fluctuations
during standstill because of
temperature changes, diaphragm
expansion vessels filled with
nitrogen (moisture neutral) must
be integrated in the system.

The unit's standard equipment includes
one diaphragm expansion vessel.
The preliminary pressure must be set
on the system; an increase in volume
or, in the event of the realisation of a
cooling-heating system, the installation
of another diaphragm expansion vessel
may be necessary.

Compensators

Compensators are used to connect
lines to the unit to prevent vibration
in the chiller from transmitting
to other system components.

Compensators

Shut-off valve Compensator

Static fasten­ing

Unit connection

Safety valve

Safety valves limit excess operating
pressure due to excess warming
or overfilling of the operating
medium. The valve outlet requires
unobstructed draining into a drain
line. Applicable local disposal
ordinances must be observed
if glycol is used.
The standard scope of delivery
for the unit includes a safety
valve; an additional valve may
be necessary at a suitable point.

The unit has manual air bleeding
valves. The unit can be bled here
after the system has been filled.
Automatic bleeding valves must
also be installed at the highest
point in the collector line.

CAUTION

!

Glycol-tolerant air bleeding
valves are necessary when
using media that contain
glycol.

Shut-off valves

As a rule, in cold water systems,
shut-off valves with full admission
should be used. For the purpose
of servicing, medium inlet and
medium outlet must be equipped
with shut-off valves (if necessary
safety valves).

Dirt trap

A rinsable dirt trap must be
installed upstream from the unit
intake. The mesh size should not
be less than 10 mesh/cm². Shut­off valves should be installed
upstream and downstream from
the dirt trap.

CAUTION

!

Improperly installed or missing
dirt traps can cause fouling
of the plate heat exchanger.

If, for example, the required
capacity of the cold water
consumer is significantly less
than the cooling capacity
generated by the chiller, an
increase in the medium content
is recommended. As an example,
the medium piping can be
oversized or an additional
storage tank installed to increase
compressor operating time.
A storage tank should, as a rule,
be provided if the minimum
medium volume is not reached.

Anti-freeze protection (accessories)

As a medium for a cold water
system, a water-glycol mixture
is used as a rule. Depending on
the use to which the glycol type
and quantity is put, the viscosity
changes, the loss in pressure
increases and the unit's cooling
or heating capacity reduces.
All system components must be
approved for use with glycol.
As a rule, the addition to the
water of ethylene glycol, in a
proportion of 34%, with inhibitors
for corrosion protection is
recommended.

CAUTION

!

During use and
disposal, product and safety
data sheets for the glycol
type being used as well
as applicable local ordinances
(e.g. Water Resources Act)
must be observed.

CAUTION

!

Use the required type and
mix ratio appropriate for
the application area to ensure
the freezing point.

23

+

+

+

+

REMKO series RVS

Condensate drainage connection
and secure discharge

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.

■

The condensate drainage line
should have an incline of min.
2%. This is the responsibility
of the customer.
If necessary, fit vapour­diffusion-proof insulation.

■

When operating the unit at
outdoor temperatures below
4 °C, care must be taken
that the condensate drainage
line is anti-freeze protected.
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.

Condensate drain

+

+

Condensate tray

Condensate drainage

NOTE

Cumulative ice formation
in the lower part of the
finned heated exchanger can
develop under certain weather
conditions. To prevent this ice
formation, we recommend
keeping the heat exchanger
frost free on both sides using a
heating band for example.

5 Minimum clearances

RVS 50 - 180 DC

1000mm

Minimum clearances

Fig. 5 shows the minimum
clearances for trouble-free
operation of the units.
The protective zones serve to
provide unhindered air intake and
outlet, as well as providing sufficient
room for performing maintenance
and repairs and preventing the unit
from being damaged.

NOTE

Failure to comply with
the minimum clearances
is considered a breach of
intended use. The manufacturer
assumes no liability for damage
or malfunctions arising from
this.

500mm

■

Following installation, check
that the condensate drain is
unobstructed and ensure that
the line is permanently leak
tight.

Safe drainage in the event
of leakages

Local regulations or environmental
laws, for example the German
Water Resource Act (WHG),
can require suitable precautions
to protect against uncontrolled
drainage in case of leakage
to provide for safe disposal
of escaping air conditioning fluid
or hazardous media.

500mm

1500mm

24

Necessary system components

6

System components

3

1

Legend:

1 Expansion pipe coupling
2 Safety valve
3 Manometer

1

1

4 Shut-off valve
5 Dirt trap
6 Diaphragm expansion vessel

2

4

3

4

8

3

5

4

7 Fill and drain device
8 Valve for hydronic balancing

7

NOTE

The system layout shown above shows the recommended pipework components to be established on­site. The detailed planning, layout and design of all components as well as the complete hydraulic system
is the responsibility of the specialist company carrying out the work.

Medium storage tank

The units have integrated high-efficiency components, which adapt the cooling capacity of the unit
to the respective load situation in accordance with the internal controller logic. This prevents cycled operation
of the compressor, which can be caused through too little water in the complete system.

As a result, the use of a medium storage tank is not absolutely essential with RVS DC type units. However,
the use of an external medium storage tank serves to increase the total water volume and thus contributes
to an increase in the quality of regulation. For this reason, a system layout with an external medium storage
tank is advisable as a matter of principle.

25

REMKO series RVS

Care and maintenance Shutdown

Regular care and observation
of some basic points will ensure
trouble-free operation and a long
service life.

CAUTION

!

Prior to performing any work,
ensure that the equipment
is isolated from the power
supply and secured to prevent
accidental switch-on!

Care

■

Ensure the unit is protected
against dirt, mould and other
deposits.

■

Clean the unit using a damp
cloth.
Do not use a jet of water.

■

Do not use any caustic, abrasive
or solvent-based cleaning
products.

■

Clean the fins on the unit prior
to long shutdown periods.

Type of task

Checks / Maintenance/Inspection

Maintenance/leak testing

■ We recommend that you take

out a maintenance contract
with an annual service from
an appropriate specialist firm.

■ The legally stipulated

maintenance intervals are
defined in EC ordinance no.
517/2014 of the European
Council.

! CAUTION

Wearing appropriate
protective clothing is necessary
when working on the units.

NOTE

Statutory regulations require
a leak test for the cooling cycle
dependent on the GWP value.
Inspection and documentation
of the work performed is
to be carried out by specialist
technicians.

Commis-

sioning

Monthly

Half-yearly

Yearly

Temporary shutdown

1.

Shut down the cold water

consumers connected
to the system.

2. Switch the unit off via
the internal controller in
the chiller (or using the remote
control).

3. Check the percentage
concentration of glycol.

4. Check the unit for visible signs
of damage and clean it as
described in the "Care and
maintenance" chapter.

5. As much as possible, cover
the unit with a plastic foil
to protect it against the
weather.

CAUTION

!

If only water and not a
mixture of water and glycol
is used, in regions subject
to freezing, water must be
drained from components
when these are at standstill.
The drained water volume
must be replaced when
components are put back into
operation!

General
Clean dirt traps

Check medium filling

Check circulation pump

Dirt/damage condenser

Check quality of the glycol

Measure voltage and current

Check direction of rotation

Check compressor

Check fan

Check the refrigerant volume

Check condensate drainage

Check insulation
Sealing test for cooling cycle

1) see note

26

•

• •

• •

• •

• •

• •

• •

• •

• •

• •

• •

• •

• •

• •

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.

1)

Electrical wiring

CAUTION

!

All electrical installation
work is to be performed
by specialist companies.
Disconnect the power supply
when connecting the electrical
terminals.

■

The power supply is made
at the chiller; a control cable
to the interior unit is not
necessary.

■

An all-pole isolating switch,

which trips in the event of a
failure of any of the individual
phase conductors, must be
installed in the supply line
upstream of the unit.

■

Electric connections must be

carried out as fixed connections
in accordance with the
applicable regulations.

■

Check all terminal points for

stability.

■

The supply line must be

adequately insulated on-site
and the voltage drop may not
exceed permissible values.

■

Make sure that the electrical

system is adequate for the
operation of the unit and can
supply the operating current
necessary for other already
operated units.

■

Determine before installation,

when connecting to existing
system components, whether
the unit's supply line is
adequately dimensioned
for the unit's rated power
consumption.

■ The connection of the units

must always be carried out with
adequately dimensioned, low­resistance earth conductors, and,
if necessary, carried out several
times (especially with plastic
pipes).

■

When installing the units on

flat roofs, lightning protection
measures may be necessary.

■

All electrical connections

such as network supply, cable
remote control etc. must be
carried out in the unit's switch
cabinet.

■

The lines to be installed are to

be fed into the switch cabinet
through the cable glands
provided.

■

An electrician must determine

the sizing and selection of the
fuses and the cross section of
the lines to be installed.
Note that starting current may
be up to 10 times nominal
current.

Carry out the following electrical
connections:

■

Connection of the power

supply.

■

Possible enabling contact for

the set mode or stand-by.

■

Possible operating mode

contact for cooling or heating
mode.

■

Possible connection of cabled

remote control (accessory).

■

Possible connection of the

GLT to the unit controller via
Modbus.

NOTE

The selection of the RCD
breaker is the responsibility
of the specialist company
carrying out the work. Based
on the provisions per VDE
0160, E VDE 0100 Part 530
as well as the guidelines of
VdS 3501 and the safety
regulations from BGI 608,
the use of an AC/DC-sensitive,
type-B RCD is recommended
for ensuring standards­compliant personnel and
fire protection.

Power supply

The units require a fixed AC or
three-phase current connection.
The power supply line must
be connected in accordance with
the wiring diagram.

CAUTION

!

Check all plug and terminal
connections to verify that
they are tight and make
a permanent contact. Tighten
as required.

Proceed as follows to connect:

1. Open the control panel and
switch cabinet cover by
removing the screws and
lifting off the cover.

2. Feed the voltage-free cable
through the glands into
the switch cabinet and clamp
the cable to the strain relief.

3. Then connect the cable
in accordance with
the connection diagram.

4. Ensure a correct rotating field.

5. Mount all removed parts.

NOTE

We recommend the use of safety
fuses.

27

REMKO series RVS

External enabling contact
Operation/Standby

In addition to being operated
with the controller or the cabled
remote control, the unit can be
switched on (normal operation)
and switched off (Stand-By) via
an external potential-free contact
(normally-closed).

The contact is equipped with
a wire jumper in the factory.
The unit is enabled in this
condition.

If the contact is opened, the unit
is disabled and OFF is shown
in the display.

Terminal blocks

RVS 80 DC

RVS 50, 130, 180 DC

General alarm signal ALARM
230V

The connection of a general
alarm signal, for example, for
signalling or for further processing
to a building control system
is possible as standard equipment.
230V is output here.

There is no voltage present at
this contact during normal unit
operation. As soon as a fault is
diagnosed on the unit, 230V
is present on the respective
terminals of the alarm contact.

Modbus interface RS485

The unit has a Modbus interface
RS485 as standard. This enables
the querying or stipulation of
setpoints, system temperatures,
operating modes etc. A detailed
list of all necessary information
can be obtained on request.

Changeover
cooling/heating mode

This changeover contact enables
the unit to be switched to cooling
mode or heating mode from
a remote location.

The changeover of operating
mode must be implemented
both through the connection/
disconnection of the external
changeover contact and through
the setting in the controller display.

If the contact is closed and the unit
is switched to heating mode (sun)
via the setting in the controller
display, the unit operates
in heating mode.

28

If the contact is open and
the unit is switched to cooling
mode (snowflake) via the setting
in the controller display, the unit
operates in cooling mode.

Electrical drawings RVS 50 DC

A

L

N

7

8

N

N

N

N

N

5

6

01

L

L

H C

L

MTS

N

N

PH

N

N

1 3

2 4

L

L1

2A

FU

B

7

8

NNN

N

5

6

02

1 3

2 4

N

K2

K2

N

4V

4V

CH

N

CH

EEV

N

P

P

K2

33

BRN

31

PUMPE

BLU

Y/G

C

N

N

L

L

RO 01

RO 02

K2

RO 03

4V

RO 04

RO 05

RO 06

RO 07

CH

RO 08

RO 09

17

RO 10

20

Ha uptp lat ine

RO 11

RO 12

RO 13

RO 14

RO 15

RO 16

RO 17

RO 18

CN3 CN4

5

CN1 CN2

12V

12V

WHT

12V

GND

GND

485-B3

485-A3

485-B2

485-A2

BLK

BLU

YEL

YEL

RED

BLK

4

4

30

485-A1

D

GND

AI 01

IT

5K

t

GND

OT

AI 02

AI 03 (50K)

AI 04 (50K)
AI 05
AI 06
AI 07
AI 08
AI 09
AI 10
AI 11
AI 12
AI 13
AI 14
AI 15
AI 16
AI 17
AI 18
AI 19
AI 20
AI 21
AI 22
DI 01
DI 02
DI 03
DI 04
DI 05
DI 06
DI 07
DI 08
DI 09
DI 10

D01- PWM

A01
DI1- PWM

D02- PWM

A02

DI2- PWM

D03- PWM
DI3- PWM
D04- PWM
DI4- PWM

D05- PWM

DI5- PWM

12V

GND

CAN-L

CAN-H

485-B1

5K

t

GND

4

1

GND
GND

SUT

5K

t

SUT

GND

CT

5K

t

CT

GND

AT

5K

t

AT

GND
GND

GND
GND

GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND

GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND

5V

GND

GND

33

31

HP
HP
LP
LP
FS
FS

12 11 6
14

16

17

20

E

4
1

5

10
9 8

26

21 22

23 24

A B

23 24

21 22

20

17

16

14

12

11

10

8 9

6

5

1 4

22 2 3

21

19 20

N

17 18

16 24 25

A

15

B

13 14

12

11

10

8 9

7

6

5

4

3

1 2

F

485B-

485A+

Remote

Heat/Cool

Remote

ON/OFF

out

Alarm

220V~

220V~

relay coil

Electric hea t

WHT

4

YEL

BLK RED

BLK RED RED WHT WHT BLK

EP

EP

ET

ET

Controller

（ET)

Pressure sensor

（SUT）

Pressure sensor

ET EP

t

50K

30

4

WHT

YEL

BLK

12V

GND

485A1

485B1

CN4

In vert er- Pla tine

L2

CN1

L

N

Pl atin e Dre hzah lre gel ung

L

L

L

Ge räte sch utz scha lte r

Q

0 1 2 3 4 5 6 7 8

P02P01P00

ACN-IN

AC-N

AC-N

AC-L

ACL-IN

ACN-OUT

ACL-OUT

CN2

Fi lter pla tin e

A

N

N

N

N

L

CN1

B

FM1

黄/绿

Y/G

N

BLU

L N

L

RED

230V~/50Hz

L1

CN607

L2L1

Ver dic hter -

Gl eich ric hte r

C

B

A

12V

GND

CN708

W UV

AC-N

AC-L

CN604

AC-NAC-L

U V W

W

V

COMP

U

U V W

Y/G

D

/Outlet wat er temperature

Sammels törm eld. potentialfrei/Alar m out

Umschalt kontakt K/H p otentia lfrei/REM OTE HEAT/COOL

Freigab ekontakt potenti alfrei/REMOTE ON/OF F

OT：Sen sor Medium Aust ritt

COMP：Kom pressor/Com pressor

CH：KW-H eizung/Compres sor heater

E

IT：Sen sor Mediu m Eintritt/ Inlet water tempe rature

FS：Ström ungswächter/F low switch

LP：ND-Sc halter/Low pres sure protection

HP：HD-Sc halter/High pres sure protect ion

FU：Sicheru ngen/Fuse

CT：Sen sor Verflüssiger/C oil temperature

K2： R elais Umwälzpumpe /Relay of Pump

EP：Überhit zungsschutz Kompressor /Ex haust protection

MTS：T ermperaturregler Abtaueizung/ Tem perature switch

PS：Druc kaufnehmer/Pre ssure sensor

SUT：Sau ggaste mperatur

TC：Trans formator/Transf ormer

PH：Abtauh eizung / Def rost heater

F

Relaiss pule der elektrische n Zusatzh eizung/Elec tric heat rela y coil

4V： Um kehrventil / 4 way valve

29

REMKO series RVS

Electrical drawings RVS 80 DC

A

L

N

7

8

N

N

N

5

6

01

L

L

H C

L

MTS

N

PH

N

1 3

2 4

L

L1

2A

FU

B

7

8

NNN

N

5

6

02

1 3

2 4

N

N

N

N

N

K2

K2

N

4V

4V

N

CH

EEV

N

P

P

K2

33

BRN

31

PUMPE

BLU

Y/G

C

N

N

L

L

RO 01

RO 02

K2

RO 03

4V

RO 04

RO 05

RO 06

RO 07

CH CH

RO 08

RO 09

17

RO 10

20

RO 11

Hau ptp lat ine

RO 12

RO 13

RO 14

RO 15

RO 16

RO 17

RO 18

CN3 CN4

5

CN1 CN2

12V

WHT

12V

12V

GND

GND

485-B3

485-A3

485-B2

485-A2

BLK

BLU

YEL

YEL

RED

BLK

4

4

30

D

GND

AI 01

IT

5K

t

GND

OT

AI 02

AI 03 (50K)

AI 04 (50K)
AI 05
AI 06
AI 07
AI 08
AI 09
AI 10
AI 11
AI 12
AI 13
AI 14
AI 15
AI 16
AI 17
AI 18
AI 19
AI 20
AI 21
AI 22
DI 01
DI 02
DI 03
DI 04
DI 05
DI 06
DI 07
DI 08
DI 09
DI 10

D01- PWM

A01
DI1- PWM

D02- PWM

A02

DI2- PWM

D03- PWM
DI3- PWM
D04- PWM
DI4- PWM
D05- PWM

DI5- PWM

12V

GND

CAN-L

CAN-H

485-A1

485-B1

5K

t

GND

4

1

GND
GND

SUT

5K

t

SUT

GND

CT

5K

t

CT
AT

GND

5K

t

AT

GND
GND

GND
GND

GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND

GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND

5V

GND

33

31

HP
HP

LP
LP
FS
FS

GND

12 11 6
14

16

17

20

E

4
1

5

10
9 8

22
21
24
23

23 24

21 22

20

17

16

14

12

11

10

8 9

6

5

1 4

26

A B

22 23

21

19 20

N

17 18

16 24 25

A

15

B

13 14

12

11

10

8 9

7

6

5

4

3

1 2

F

485B-

485A+

Remote

Heat/Cool

Remote

ON/OFF

out

Alarm

220V~

220V~

relay coil

Electric heat

WHT

4

YEL

BLK RED

BLK RED RED WHT WHT BLK

Controller

（ET)

Pressure sensor

（SUT）

Pressure sensor

EP

EP

ET

ET EP

t

ET

50K

30

30

4

WHT

YEL

BLK

12V

GND

485B1

485A1

CN4

CN1

L

N

Pla tin e Dre hzah lre gel ung

L

L

L

Ger äte sch utz scha lte r

Q

0 1 2 3 4 5 6 7 8

P02P01P00

ACN-IN

AC-N

AC-N

AC-L

ACL-IN

ACN-OUT

ACL-OUT

CN2

Fil ter pla tin e

A

N

N

N

N

L

CN1

B

FM1

黄/绿

Y/G

N

BLU

L N

L

RED

Inv ert er- Pla tine

L2

L1

CN607

AC-NAC-L

L2L1

Ver dic hter -

Gle ich ric hte r

230V~/50Hz

C

B

A

12V

GND

CN708

W UV

AC-N

AC-L

CN604

U V W

W

V

COMP

U

U V W

Y/G

EP：Überhit zungsschutz Kompressor /Exhaus t protection

CT：Sen sor Verflüssiger/Coil temperature

COMP： Kompressor/C ompressor

FS：St römungswäc hter/Flow swi tch

CH：KW- Heizung/Compres sor heater

D

E

/Outlet wat er temperat ure

Sammels törmeld. potentialf rei/Alarm out

Umsc haltkontakt K/H poten tialfrei/R EMOTE HEAT/COO L

Freigab ekontakt potenti alfrei/REMOTE ON/OF F

K2： R elais Umwälz pumpe/Relay o f Pump

LP：ND-Sc halter/Low pres sure protection

SUT：Sa uggaste mperat ur

FU：Sicheru ngen/Fuse

IT：Sen sor Medium Eintr itt/ Inlet water tempe rature

HP：HD-Sc halter/High pres sure protect ion

TC：Trans formator/Transf ormer

PS：Druc kaufnehmer/Pre ssure sensor

MTS：T ermperaturregler Abtauheizung/ Temperature s witch

OT：Sen sor Mediu m Au stritt

PH：Abt auheizung / Def rost heater

F

Relaiss pule der elektrisc hen Zusatzh eizung/Elec tric heat rela y coil

4V： U mkehrventil / 4 way valv e

Electrical drawings RVS 130 DC

A

B

C

D

E

F

9

GND

AI 01

IT

5K

N

N

L

L

8

N

N

4V

L

RO 01

RO 02

K2

K2

K2

4V

RO 03

4V

RO 04

RO 05

RO 06

RO 07

CH

7

7

8

N

N

N

N

N

5

6

02

1 3

2 4

6

L

L

7

N

N

5

H C

PH

N

1 3

MTS

5

L

4

L

L

FU

30

4

WHT

YEL

BLK

12V

GND

485B1

485A1

CN4

CN1

L

N

Pl atin e Dre hzah lre gel ung

L

N

N

CH

8

N

N

N

6

01

N

N

N

2 4

N

P

L1

3.15A

PUMPE

K2

Y/G

FM2

FM1

CH

RO 08

RO 09

13

RO 10

16

RO 11

Ha uptp lat ine

RO 12

RO 13

RO 14

RO 15

RO 16

RO 17

RO 18

CN3 CN4

5

EEV

CN1 CN2

12V

12V

GND

485-B3

485-A3

YEL

YEL

BLK

RED

WHT

4

30

AI 02

AI 03 (50K)

AI 04 (50K)
AI 05
AI 06
AI 07
AI 08
AI 09
AI 10
AI 11
AI 12
AI 13
AI 14
AI 15
AI 16
AI 17
AI 18
AI 19
AI 20
AI 21
AI 22
DI 01
DI 02
DI 03
DI 04
DI 05
DI 06

DI 07
DI 08
DI 09

DI 10

D01- PWM

A01
DI1- PWM

D02- PWM

A02

DI2- PWM

D03- PWM

DI3- PWM

D04- PWM

DI4- PWM

D05- PWM

DI5- PWM

12V

12V

GND

GND

485- A2

485-B2

CAN-H

485-A1

485-B1

BLK

BLU

4

3

L

t

GND

OT

5K

t

GND

ET

50K

t

ET

GND
GND

SUT

5K

t

SUT

GND

CT

5K

t

CT

AT

GND

5K

t

AT

GND

GND
GND

GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND

HP
HP

GND

LP
LP

GND

FS
FS

GND

GND

GND
GND

GND
GND
GND

GND
GND
GND
GND

GND
GND
GND

GND
GND
GND
GND
GND

5V

GND

GND

CAN-L

1

6
5 4

485B-

22

17 18

19 20

8 7 2

10

12

13

16

A B

19 20

18

17

16

N

13

12

A

10

B

8

7

6

4 5

2

1

485A+

21

Remote

19 20

17 18

13 14 15 16

12

11

10

8 9

7

6

5

4

3

1 2

Heat/Cool

Remote

ON/OFF

out

Alarm

220V~

220V~

relay coil

Electric heat

WHT

4

YEL

BLK RED

BLK RED RED WHT WHT BLK

Controller

（ET)

Pressure sensor

（SUT）

Pressure sensor

2

Ge räte sch utz scha lte r

Q

N

N

N-in

N-out

L

L

N N

L-in

L-out

L

Fi lter pla tin e

Y/G

N

BLU

L

L N

RED

230V~/50Hz

0 1

A

B

CN617

In vert er- Pla tine

CN618

PE ACN ACL L1 L2

CN607

P2

P1

CN608

B

A

12V

GND

CN614

W UV

CN604

C

N

L

L1 L2

Ver dic hter -

Gl eich ric hte r

L4

L

PTC

L4

L

L4

K1

P2

N

P2

P1

U

V

W

N

N

P1

K1

D

W

W

V

V

U

COMP

U

/Outlet wat er temperature

：Luf tschalter /Air switc h

CT：Sen sor Verflüssiger/Coil temperature

HP：HD-Sc halter/High pres sure protect ion

FU：Sicheru ngen/Fuse

COM P：Kompre ssor/Compres sor

CH：KW-H eizung/Com pressor heater

FS：Ström ungswächter/F low switch

E

PH：Abtauh eizung / Def rost heater

K2： R elais Umwälzpum pe/Relay of Pum p

SUT：Sau ggastemperat ur

OT：Sen sor Medium Aust ritt

LP：ND-Sc halter/Low pres sure protec tion

IT：Sen sor Mediu m Eintr itt/ Inlet wat er tempera ture

Freigab ekontakt potenti alfrei/REMOTE ON/OF F

Umsc haltkont akt K/H poten tialfrei/R EMOTE HEAT/C OOL

4V： Um kehrventil / 4 way valve

Q

TC：Trans formator/Transf ormer

PS：Druc kaufnehmer/Pre ssure sensor

MTS：T ermperaturregler Abtauheizung/ Tem perature swi tch

Sammels törm eld. potentialfrei/Alar m out

F

Relaiss pule der elekt rische n Zusatzheizung/Elec tric heat rela y coil

31

REMKO series RVS

Electrical drawings RVS 180 DC

A

B

C

D

E

F

9

N

L1

8

L2

L3

L1

7

N

N

L1

6

5

4

L1

N

L3

L2

3

L1

L1

L2

L3

N14

N

14

12

L2(B)

L1(A) 11

L3(C)

L1

1A

FU

L2L3

Pha sen fol ger elai s

N

N14

L

L1

RO 01

N

N1

K2

K2

7

8

N

H C

L1

MTS

N

N

N

5

6

01

PH

1 3

2 4

FR

N

4V

4V

N

CH

9

16

RO 02

K2

RO 03

4V

RO 04

RO 05

RO 06

RO 07

CH CH

RO 08

RO 09

Hau ptp lat ine

RO 10

RO 11

RO 12

RO 13

30

4

WHT

YEL

BLK

12V

GND

485A1

485B1

CN4

CN1

L

N

Pla tin e Dre hzah lre gel ung

L1

N

L3

L2

L1

K2

FR

FM2

FM1

5

EEV

W

V

3

U

PUMPE

BRN BLK BLU

Y/G

RO 14

RO 15

RO 16

RO 17

RO 18

CN3 C N4

12V

12V

CN1 CN2

12V

GND

GND

485-B3

485-B2

485- A2

485- A3

BLU

BLK

YEL

YEL

RED

BLK

WHT

4

4

30

GND

AI 01

IT

5K

t

IT

GND

OT

AI 02

AI 03 (50K)
AI 04 (50K)

AI 05
AI 06
AI 07
AI 08
AI 09
AI 10
AI 11
AI 12
AI 13
AI 14
AI 15
AI 16
AI 17
AI 18
AI 19
AI 20
AI 21
AI 22
DI 01
DI 02
DI 03
DI 04
DI 05
DI 06

DI 07
DI 08
DI 09

DI 10

D01- PWM

A01

DI1- PWM

D02- PWM

A02

DI2- PWM

D03- PWM
DI3- PWM

D04- PWM

DI4- PWM

D05- PWM

DI5- PWM

12V

GND

CAN-L

CAN-H

485-A1

485-B1

5K

t

OT

GND

ET

50K

t

ET

GND
GND

SUT

5K

t

SUT

GND

CT

5K

t

CT

GND

AT

5K

t

AT

GND

GND
GND

GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND

GND
GND
GND

GND

GND
GND

GND
GND
GND

GND
GND
GND
GND

GND
GND
GND

GND
GND
GND
GND
GND

5V

GND

3

6

5 4

HP
HP

LP
LP

FS
FS

17 18

19 20

GND

10 7 1

8

12

485B-

485A+

19 20

17 18

16

N9

485B-

10 12

485A+

6

3 4 5

1 7 8

485B-

22

485A+

21

20

Remote

19

18

17

16

15

14

13

7 8 9 1 0 1 1 1 2

6

2 3 4 5

1

Heat/Cool

Remote

ON/OFF

out

Alarm

220V~

220V~

relay coil

Electric heat

RED

4

Controller

BLK

WHT

BLK BLK WHT YEL

RED RED WHT

（ET)

Pressure sensor

（SUT）

Pressure sensor

32

B

A

2

N

Ger äte sch utz scha lte r

1

Q

L3N

L1L2

Y/G

BLU

L3 N

WHT

L3 N

L2

BLK

0

L1

L2

C B A

L3

Fil ter pla tin e

N

N

N- C- B- A-

A

L2

L1

RED

400V/3N~/50Hz

L1

B

CN602

Inv ert er- Pla tine

CN613

DCN-IN

CN614

DCP-IN

39K

39K

N

1 3

2 45678

C

5V

12V

GND

GND

CN605

JP601

CN617

DCP-OUT

U V W

L3

L2

L1

R S T

CN615

DCN-OU T

W

WHT

V

BLK

RED

COMP

U

/Outlet wat er temperature

02

Electronic expand valve

FR：M otorschu tzscha lter/Ther mal relay

EEV：

ET：Exhaus t temperature

CH：KW-H eizung/Compres sor heater

Ver dich ter -

Gle ich ric hte r

D

COMP：Kom pressor/Com pressor

FU：Sicheru ngen/Fuse

CT：Sen sor Verflüssiger/Coil temperature

FS：Ström ungswächter/F low switch

E

MTS：T ermperaturregler Heizung/ Tem perature switch

HP：HD-Sc halter/High pres sure protect ion

IT：Sen sor Medium Eint ritt/ Inlet water temperature

LP：ND-Sc halter/Low pres sure protection

SUT：Suc tion temperat ure

OT：Sen sor Medium Aust ritt

K2：Schüt z Umwälzpump e /Contactor Circ ulation Pump

Sammels törm eld. potentialfrei/Alar m out

Umschalt kontakt K/H p otentialfrei/REM OTE HEAT/C OOL

Freigab ekontakt potenti alfrei/REMOTE ON/OF F

4V： Um kehrventil / 4 way valve

PH：Abtauh eizung / Def rost heater

F

Relaiss pule der elektrische n Zusatzheizu ng/Electric heat rela y coil

Leak testing

Before
commissioning

The leak test is carried out after
the connection has been made.

1. Flush the system twice with
clean tap water.

2. Clean the sieve insert of the dirt
trap provided by customer.

3. Fill the system with water
again and bleed the unit
at the manual bleed valves.

4. Adjust the test pressure to
at least 250 kPa (2.5 bar).

5. Check the connections for
leaking water after a period
of at least 24 hours . If leaks are
visible, the connection has not
been properly made. Tighten
the connection or establish
a new connection.

6. After a successful leak test,
remove the excess pressure
from the medium piping if a
water-glycol mixture is used
or adjust the non-circulating
pressure to the required system
pressure.

6 Unit preliminary pressure

Filling the system

The system is filled at
the customer-provided filling and
draining connections.

Anti-freeze protection for the medium

If a water-glycol mixture is used,
it is to be pre-mixed before being
put in the system. The desired
concentration is then to be checked.

Unit preliminary pressure for
the medium

The preliminary pressure of
the medium (without operation of
the circulation pump) varies within
the system. From the highest
point, the pressure increases by
approx.10 kPa (0.1bar) per metre
difference in altitude (geodetic
altitude). The value measured at
the highest point is identified as
the non-circulating pressure.

The position of the unit in the
system is decisive in the calculation
of the unit's preliminary pressure
(pressure of the manometer on
the unit installed by the customer).
The pressure must be set to at least
70 kPa (0.7 bar)

.

■

If the unit is positioned
at the lowest point in
the system, the unit preliminary
pressure (=non-circulating
pressure+geodetic system
altitude) must be set to at

least 70 kPa (0.7 bar) + 10 kPa
(0.1bar) x geodetic system
altitude.

■

If the unit is positioned at
the highest point in the system,
the unit preliminary pressure
(=non-circulating pressure) to
at least 70 kPa (0.7 bar). Please
note that the system pressure at
the lowest point is increased by
the geodetic system altitude!

Bleeding the system

■

Air may still be in the pipe
lines after the leak test.
The operation of the circulation
pump transports this to
the next highest point or to
the cold water consumer. Here
it is necessary to vent again
(Figure 7).

■

Also vent the pump if
necessary.

■

The non-circulating pressure
must then be adjusted to
the required system pressure.

Unit preliminary
pressure

Non-circulating
pressure

7 Manual bleeding

Unit preliminary
pressure

Geodetic system
altitude

Manual
bleeding

33

REMKO series RVS

Diaphragm expansion vessel

■ The preliminary pressure for

the diaphragm expansion vessel
must be adjusted individually to
the system layout, the volume of
the medium and the installation site.

■

If necessary, change the installation
site. For this, the manufacturer's
authorisation is required.

■

For cooling and heating systems,
the volume and the preliminary
pressure for the diaphragm
expansion vessel must be adjusted
to both operating modes; integrate
an additional diaphragm expansion
vessel in the system if necessary.

Valves for hydronic balancing

■

The calculated excess pressure
in the pipe network layout at
the individual cold water outlets
must be adjusted at the valves
for hydronic balancing.

Additional checks

General checks

■

Checking that minimum
clearances are correct.

■

Checking the transfer of cooling
and heating capacity via
the cold or hot water consumer
(indoor unit).

Electrical checks

■

Checking electrical connections
for correct phase sequencing.

■

Functional check of the cooling
mode/heating mode enable
(option).

■

Functional check of the enable
mode/Stand-By (option).

Checking the medium cycle

NOTE

The units are equipped
with a phase sequence relay
which prevents the operation
of the controller if the direction
of rotation of the electric
power supply is wrong.
The rotary field must be
replaced if the controller
is not activated during
commissioning of the unit.

NOTE

During manual bleeding,
any glycol mixtures which
escape must be disposed
of separately.

Safety valve

■

The safety valves and their
correct function must be
checked.

■

The drain line for the valves is
to be checked for function and
leak tightness.

■

If necessary, change
the installation site. For
this, the manufacturer's
authorisation is required.

■

Checking the circulation pump
for freedom of movement.

■

Checking whether all valves are
open.

■

Checking the medium circuit.

■

Setting the circulation pump's
nominal flow rate.

Checking the cooling circuit

■

Checking the cooling circuit for
adequate oil/refrigerant.

■

Checking the cooling circuit for
leak tightness.

34

Commissioning

NOTE

Commissioning should only be
performed by specially trained
personnel and documented
after the certificate has been
issued.

■

Observe the manuals
for the unit and all other
components when
commissioning the entire
system.

Functional test for
Cooling mode:

1. Switch the power supply on.

2. Open all shut-off valves
if necessary.

3. Switch the unit and
the corresponding circulation
pump on to the highest level.
The outlet temperature must
be between +4 and +18°C.

4. Switch the unit on and select
the cooling operating mode.
If the return temperature
is warmer than the setting,
the compressor display will flash
and the compressor will begin
to work after approx. 3 to
5 minutes.

- The circulation pump starts
and the controller checks
the medium flow rate via
the differential pressure/flow
switch.
If the volume is insufficient,
a fault shut-off will be carried
out and the cooling cycle will
not be enabled.

6. Measure and record all
the required values in
the commissioning report and
check the safety functions.

7. Check the unit control system
using the functions described
in the "Operation" chapter.

Functional test for
Heating mode

1. Switch the power supply on.

2. Open all shut-off valves if
necessary.

3. The voltage supply is made
at the chiller; a control cable
to the interior unit is not
necessary.
The outlet temperature must be
between +35 and +45°C.

- The circulation pump starts
and the controller checks
the medium flow rate via
the differential pressure/flow
switch.
If the volume is insufficient,
a fault shut-off will be carried
out and the cooling cycle will
not be enabled.

6. Measure and record all
the required values in
the commissioning report
and check the safety functions.

7. Check the unit control system
using the functions described
in the "Operation" chapter.

Final tasks

■

Reassemble all disassembled
parts.

■

Familiarise the operator
with the system.

5. Please note that the inlet
temperature at the nominal
flow rate of the medium lies
approx. 5 K below the return
temperature.

- If the supply temperature falls

below the factory setting of
4°C, a fault triggers.
If this is the case, a higher
return temperature must be
selected. If the spread is too
great or too small, the medium
flow rate must be checked.

4. Switch the unit on and select the
heating operating mode.
If the return temperature
is colder than the setting,
the compressor display will
flash and the compressor will
begin to work after approx.
3 minutes.

5. Please note that the supply
temperature at the nominal
flow volume of the medium
lies approx. 5 K above
the return temperature.

35

REMKO series RVS

Overhaul and repair

NOTE

Overhaul and repairs should
only be performed and
documented by specially
trained personnel.

Cooling circuit

Repairs on the cooling cycle are
to be documented in the operating
manual. The following measures
must be observed:

■

Environmentally correct

collection and disposal of
refrigerant and defective
components

■

Repairs carried out properly and

permanently with original spare
parts and connecting materials
appropriate to the task

■

Long-lasting leak-testing

with the maximum occurring
pressure

■

Long-lasting and properly

implemented evacuation and
drying of the refrigerant circuit

■

Proper filling with pure

refrigerant and corresponding
quantity per operating
instructions/name plate

■

Functional check of safety

components

! CAUTION

Wear protective clothing when
handling refrigerant.

! CAUTION

Only refrigerant in a liquid
state may be used to fill
the cooling cycle.

Medium cycle

Repairs on the medium cycle are
to be carried out and documented
in accordance with the current
regulations and/or regional
guidelines. The following measures
must be observed:

■

Environmentally correct

collection and disposal
of operating medium and
defective components

■

Repairs carried out properly and

permanently with original spare
parts and connecting materials
appropriate to the task

■

Long-lasting leak-testing

with the maximum occurring
pressure

■

Functional check of safety

components

■

Proper filling with pure

operating medium

NOTE

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 unit contains refrigerant
with a greenhouse potential
of 2088. That means the
escape of 1 kg of this
refrigerant has an effect
on global warming that is
2088 times greater than 1
kg CO2

based on 100 years.
Do not conduct any work on
the cooling cycle or dismantle
the unit - always enlist
the help of qualified experts.

Electrical components

Repairs on electrical components
and parts are to be carried out and
documented in accordance with
the current regulations and/or
regional guidelines. The following
measures must be observed:

■

Environmentally correct disposal

of defective components

■

Repairs carried out properly and

permanently with original spare
parts

■

Inspection of the unit or system

in accordance with the currently
applicable regulations and
guidelines, e.g. protection
against direct contact, damage
to components, defective
components, changes to
factory-delivered components,
etc.

■

Testing of the unit or system

in accordance with the currently
applicable regulations and
guidelines, e.g. devices for
protection against electric
shock/overvoltage/incorrect
rotating field, overcurrent
protection devices, display and
fault devices, interlocks, etc.

■

Measurement and assessment

of the unit or system in
accordance with the currently
applicable regulations and
guidelines, e.g. insulation
resistance, loop impedance,
residual current protective
devices, low-resistance
connection of the earth
conductor, earthing resistance,
incorporation into the lightning
protection system, etc.

! CAUTION

All overhaul/repairs to be
carried out in electrically de­energised condition.

36

Troubleshooting and customer service

The unit has been manufactured using state-of-the-art production methods and has been tested several times
to ensure that it works properly. If malfunctions should occur, please check the unit as detailed in the list
below. Please inform your dealer if the unit is still not working correctly after all the function checks have been
performed.

Operational malfunctions

Malfunction Possible cause Checks Remedial measures Major

P01 Medium inlet probe defective

P02

P04

P07

P08

PP1 "Low-pressure probe fault"

PP2 "High-pressure probe fault"

E01

Medium outlet sensor
defective

Probe defective, ambient
temperature probe

Probe defective, suction gas
temperature probe

Probe defective, heat gas
temperature probe

High-pressure switch, high­pressure alarm

- Check:

- Probe resistance

- Connections of the probe cable

- Check:

- Probe resistance

- Connections of the probe cable

- Check:

- Probe resistance

- Connections of the probe cable

- Check:

- Probe resistance

- Connections of the probe cable

- Check:

- Probe resistance

- Connections of the probe cable

- Check:

- Probe resistance

- Connections of the probe cable

- Check:

- Probe resistance

- Connections of the probe cable

In cooling mode:
Finned heat exchanger
blocked, dirty or exposed to
excessive sunlight? Condenser
fan or high-pressure switch
defective?

In heating mode:
Medium flow rate too low,
Medium temperature on
the plate heat exchanger too
high, High-pressure switch
defective.

- Replace defective probe

- Renew connections

- Replace defective probe

- Renew connections

- Replace defective probe

- Renew connections

- Replace defective probe

- Renew connections

- Replace defective probe

- Renew connections

- Replace defective probe

- Renew connections

- Replace defective probe

- Renew connections

In cooling mode:
Clear finned heat exchanger,
clean, shade, have condenser
fan checked by specialist
personnel, check high­pressure switch.

In heating mode:
Check medium flow rate and
medium temperature, check
high-pressure switch

X

In cooling mode:
Insufficient refrigerant,
Medium flow rate too low,
low-pressure switch defective.

In heating mode:
Insufficient refrigerant,
Finned heat exchanger
blocked or dirty? Evaporator
fan or low-pressure switch
defective?

E02

Low-pressure probe low-pres­sure alarm

Please note that this troubleshooting table continues on the next pages

In cooling mode:
Insufficient Refrigerant, check
medium flow rate and low­pressure switch.

In heating mode:
Clear and clean finned heat
exchanger, have evaporator
fan checked by specialist
personnel, check low-pressure
switch.

X

37

REMKO series RVS

Malfunction Possible cause Checks Remedial measures Major

E03 Medium flow disturbance

E07 Frost protection triggered

P81 Heat gas overtemperature

E44

E21 Low voltage fuse triggered

E22/23 Overflow protection

Heating system dropped below
bottom operating limit

Check:

- Air in the medium piping

- Open shut-off devices

- Medium pressure

- Circulation pump capacity

- Medium flow rate

- Flow monitor

Is the supply temperature
greater than or less than 4°C?

Check:

- Heat gas temperature (U04)

- Heat gas temperature probe,
probe resistance

- Refrigerant quantity

Outside temperature below

-20°C?

Check:

- Voltage on R/S/T on
the inverter board
(min 300V)

Check:

- Current consumption of
the complete system

- Bleed medium cycle

- Open shut-off valves

- Increase medium pressure

- Have circulation pump,
medium flow rate and
flow monitor checked by
a specialist company.

Raise return flow
temperature, increase
medium flow rate, adjust
anti-freeze temperature to
the operating medium.

- Replace heat gas
temperature probe

- Fill refrigerant to operational
levels after rectifying

the cause of the problem

Establish stable power supply
on the supply line

- Replace inverter board

- Restart system

X

X

X

E24

E25

E27 IPM overcurrent protection

E28 IPM overheating protection

E30 / E31

DC bus overvoltage protection
triggered

Inverter board low voltage
protection device triggered

Overheating of the control
electronics

Check:

- Voltage at R/S/T on
the inverter board
(max 500V)

- Voltage between DCP-IN
and DCN-IN on the inverter
board (max 800V)

Check:

- Voltage at R/S/T on the
inverter board
(min 210V)

- Voltage between DCP-IN
and DCN-IN on the inverter
board (min 300V)

Check:
Compressor current draw,
Pressure difference, high/low
pressure

Check:

- Function of the fan

- Air throughput

Check:

- Function of the fan

- Air throughput

Establish stable power supply
on the supply line

- Replace inverter board

Establish stable power supply
on the supply line

- Replace inverter board

- Reduce pressure difference
by raising the low pressure or
lowering the high pressure

- Ensure that there is
adequate distance at the fan
inlet and outlet

- Clean the finned heat
exchanger

- Ensure that there is
adequate distance at the fan
inlet and outlet

- Clean the finned heat
exchanger

38

Malfunction Possible cause Checks Remedial measures Major

Check:

E32 IPM current probe

E33 / E34

E35 Faulty input voltage

E36 Compressor start-up fault

E37 DSP communications fault - Replace inverter board

Compressor overcurrent
protection

Compressor current draw,
Pressure difference, high/low
pressure

Check:
Compressor current draw,
Pressure difference, high/low
pressure

Check:

- Voltage between U&V, U&W
and V&W (380V (+-10%))

Check:

- U/V/W connections on
compressor

- U/V/W connections on the
inverter board

- Voltage between U&V, U&W
and V&W
(380V (+-10%))

- Compressor motor windings

- Operating pressures in the
refrigerant circuit

- Reduce pressure difference
by raising the low pressure or
lowering the high pressure

- Replace inverter board

- Reduce pressure difference
by raising the low pressure or
lowering the high pressure

Establish stable power supply
on the supply line

- Replace inverter board

- Renew connections

- Replace compressor

- Replace inverter board

E38 PFC communications fault - Replace inverter board

E39 Supply voltage check

E40 EEPROM error

E41

E45 PFC communications fault - Replace inverter board

E46 Fan motor 1 defective

E47 Fan motor 1 defective

EE8

Faulty compressor start-up
voltage

Communication fault between
motherboard and inverter
board

Check:

- Voltage on the supply line

Check:
Correct seating of the
EEPROM

Check:

- Voltage between U&V, U&W
and V&W (380V (+-10%))

Check:

- Fan motor operation

- Fan motor current draw

Check:

- Fan motor operation

- Fan motor current draw

Check:

- Connections between
motherboard and inverter
board

Establish stable power supply
on the supply line

- Replace inverter board

- Correct the seating of
the EEPROM

- Replace inverter board

Establish stable power supply
on the supply line

- Replace inverter board

- Replace the fan motor.

- Replace the fan motor.

- Renew connections

- Replace inverter board

- Replace motherboard

E08

Communication fault between
motherboard and display

Check:

- Communications between
motherboard and display

- Renew connections

- Replace display

- Replace motherboard

39

REMKO series RVS

Malfunction Possible cause Checks Remedial measures Major

Check:

F032 Fan motor 1 defective

- Fan motor operation

- Fan motor current draw

- Replace the fan motor. X

Check:

- Connections between
motherboard and fan speed
controller

- Replace fan speed controller

- Replace motherboard

E081

Communication fault between
motherboard and fan speed
controller

Resistance table

The resistance values for the probes: AT (ambient), CT (register), SUT (suction gas), OT (medium outlet), IT
(medium inlet) are shown in the following table.
The ET (compressor outlet) probe is an NTC 50.

Temperature

[°C]

-30 63.73

-29 60.32

-28 57.12

-27 57.12

-26 51.27

-25 48.60

Resistance

(kΩ)

Temperature

Resistance

[°C]

-5 17.91

-4 17.10

-3 16.32

-2 15.59

-1 14.89

0 14.23

(kΩ)

Temperature

Resistance

[°C]

20 6.09

21 5.85

22 5.62

23 5.40

24 5.20

25 5.00

(kΩ)

-24 46.09

-23 43.72

-22 41.49

-21 39.38

-20 37.40

-19 35.53

-18 33.76

-17 32.09

-16 30.52

-15 29.03

-14 27.62

-13 26.29

-12 25.03

-11 23.84

-10 22.72

-9 21.65

1 13.60

2 13.01

3 12.44

4 11.90

5 11.39

6 10.90

7 10.44

8 10.00

9 9.58

10 9.18

11 8.80

12 8.44

13 8.09

14 7.76

15 7.45

16 7.15

26 4.81

27 4.63

28 4.46

29 4.29

30 4.13

31 3.98

32 3.83

33 3.70

34 3.56

35 3.43

36 3.31

37 3.19

38 3.08

39 2.97

40 2.97

41 2.77

-8 20.64

-7 19.68

-6 18.77

40

17 6.87

18 6.59

19 6.33

42 2.67

43 2.58

44 2.49

Dimensions

Unit dimensions

RVS 50 DC

RVS 130 DC

RVS 80 DC

RVS 180 DC

41

REMKO series RVS

Technical data

Series RVS 50 DC RVS 80 DC RVS 130 DC RVS 180 DC

Operating mode

Nominal cooling output kW 4.7

1)

(1.6 - 5.6) 7.6 1) (2.0 - 10.0) 13.5 1) (5.0 - 14.5) 16.9 1) (7.0 - 20.0)

Compact air-cooled chiller for external installation

with seamless power regulation for cooling and heating

SEER 3.88 4.33 5.01 4.15
Annual room cooling efficiency n

s,c

Setting range return temp. Cooling °C

% 152 170 195 163

+10 to +20 / +3 to +20

4)

Setting range return temp. Heating °C +30 to +50
Operating range, cooling °C -15 to +45
Operating range, heating °C -20 to +52
Cooling circuits, number 1

Refrigerant R410A

7)

GWP value 2088
Refrigerant filling quantity
CO

equivalent 5.22 5.01 6.68 9.19

2

6)

kg 2.5 2.4 3.2 4.4

Compressor, number/type 1/Rotary piston
Air flow rate, max. m³/h 3,900 3,900 7,800 8,600
Nominal airflow volume m³/h 3,650 3,650 7,300 8,100
Number of fans 1 2
Power consumption, fan kW 0.11 0.11 0.22 0.25
Current consumption, fan A 0.5 0.5 1.0 1.1
Sound pressure level

3)

dB(A) 37.3 37.3 41.7 46.2
Sound power level dB(A) 68.5 68.5 73.1 77.6
Power supply V/Hz 230/1~/50 400/3~N / 50
Enclosure class IP X4
Electr. power consumption, max.
Elec. current consumption, max.
Electr. rated power consumption

Cooling
Electr. rated current consumption

Cooling

1)

1)

4)

4)

kW 2.1 3.4 5.6 9.0

A 9.2 18.0 27.0 14.0

kW 1.3 2.3 4.5 5.5

A 5.6 10.4 20.7 9.5

Electr. starting current, max. A Not applicable as the unit starts with min. frequency
Operating medium Water; max. 35% ethylene glycol, max. 35% propylene glycol
Operating pressure, medium, max. kPa 600
Nominal flow rate, medium

Cooling

m³/h 1.0 1.6 2.8 4.2

Minimum flow volume, medium m³/h 0.62 1.00 1.75 2.63
Maximum flow volume, medium m³/h 1.68 2.70 4.70 7.00
Pressure loss, indoor kPa 10.0 24.0 105.0 71.0
Nominal pump pressure, max. kPa 60.8 122.6 206.0 220.7
Equipment pressure, available kPa 50.8 98.6 101.0 149.7
Power consumption, pump kW 0.05 0.18 0.50 0.65
Current consumption, pump A 0.4 0.7 2.8 1.7
Medium connection, inlet Inches 1 1 1 1/4 1 1/4
Medium connection, outlet Inches 1 1 1 1/4 1 1/4
Dimensions - Height mm 790 910 1320 1592

Width mm 1008 953 996 1175

Depth mm 463 445 395 400
Weight kg 95 110 148 219
Standard colour similar to RAL 9018

1) Air inlet temperature TK 35°C, medium inlet 12°C, medium outlet 7°C, 0% glycol concentration

3) Distance 10 m free field

4) With low temperature accessories

6) The refrigerant filling quantity is subject to continuous optimisation. Therefore, the exact filling quantity can be found on the name plate

42

43

REMKO QUALITY WITH SYSTEMS

Air-Conditioning | Heating | New Energies

REMKO GmbH & Co. KG
Klima- und Wärmetechnik

Im Seelenkamp 12
32791 Lage

Telephone [phone]
Telefax [phone]

E-mail [email protected]
URL www.remko.de

Hotline within Germany

[phone]

Hotline International

[phone]

We reserve the right to make technical changes, and provide no guarantee as to the accuracy of this data!