REMKO CMF
REMKO CMF - DUO
CMF 320 DUO
Inverter heat pump
Planning Guide and Installation Manual
Instructions for the Technician
Edition GB – W11
Contents
Safety notes
4
Environmental protection and recycling
5
Warranty
5
Care and maintenance
5
Temporary shut-down
5
Intended use
6
Heat pumps in general and layout
Layout of the Indoor unit
Installation instructions
6-10
11
12-16
Hydraulic connection
17
Corrosion protection
18
Electrical connection
19-22
Connection of refrigerant lines
23
Placing the refrigeration system in service
24
Control panel
25
Notes on commissioning
26
Setting instructions for indoor unit charge pump
27
Heat pump manager Multi-Talent Plus (heat flow meter)
28
Troubleshooting and customer service
29-32
Unit dimensions
33
Electrical system layout
34
Connection diagram: terminal configuration / circuit diagrams
35-44
Heat-output characteristics and COP
45-47
Pump characteristics and sound-pressure levels
48
Sound-power levels
49
Annual performance numbers (n. VDI 4650)
Technical data
50-51
52
Exploded view and parts lists
53-55
EC-Declaration of conformity
56
General terms
57-58
Read these operating instructions carefully
before commissioning / using this device!
These instructions are an integral part of the system and must always
be kept near or on the device.
This operating manual is a translation of the German original.
Made by REMKO
Subject to modifications; No liability accepted for errors or misprints!
3
REMKO CMF - DUO
Safety notes
Carefully read the operating
instruction before placing the
equipment in service. It provides
useful tips and information as
well as hazard warnings to prevent
injury or material damage ! .
Failure to follow the directions
in this manual can result in
endangerment to 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.
■ The electrical supply is to be
adapted to the requirements of
the equipment.
■
■
■
■ The unit should be set up
and installed only by qualified
personnel.
■
■ The set-up, connection, and
operation of the unit and
its components must be in
accordance with the operating
conditions stipulated in this
manual and comply with all
applicable local regulations.
■ Mobile units must be set up
securely on suitable surfaces and
in an upright position. Stationary
units must be permanently
installed for operation.
All housing parts and openings
in the device, e.g. air inlets and
outlets, must be free of foreign
objects, fluids, or gases.
The equipment and components
must be kept an adequate
distance from flammable,
explosive, combustible, abrasive
and dirty areas or atmospheres.
■
If refrigerant has leaked from
the inside module, the room
must be properly ventilated
before re-starting the
equipment. Otherwise there is
danger of suffocation.
■
Burned-out fuses may be
replaced only by those of
identical construction.
■
The units must be inspected by
a service technician at least once
annually
■
In case of defects that endanger
the operational safety of the
unit, it must be taken out of
service.
Touching some parts of the
equipment can result in burns or
other injury.
■
Units may be mounted only
at the points provided for this
purpose at the factory.
■
Installation, repair and
maintenance work may be
carried out only by authorised
specialists. Visual inspections
and cleaning can be performed
by the operator as long as
power is disconnected from the
equipment.
■
The devices may be attached
only to load-bearing structures
or walls.
■
Regulations such as the regional
building codes and the Water
Ecology Act must be followed.
■
4
Do not operate equipment
or components with obvious
defects or signs of damage.
The equipment or components
are not to be exposed to any
mechanical stresses, extreme
levels of humidity or direct
sunlight.
■
■ Modification of equipment
and components supplied by
REMKO is not permitted and
can cause malfunctions.
■ Equipment and components
may not be operated in areas
where there is an increased
risk of damage. Observe the
minimum clearances.
The operational safety of
equipment and components
is only assured if they are
fully assembled and used as
intended. Safety devices may
not be modified or bypassed.
■
To preclude any danger from
the equipment, take appropriate
hazard-prevention measures
when performing installation,
repair or maintenance work or
cleaning the equipment.
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.
Care and maintenance
Regular care and maintenance
serves to ensure trouble-free
operation and long service-life of
the heat-pump system.
Care
■
Disposal of equipment and components
■
Only recyclable materials are used
in the manufacture of the devices
and components.
Help protect the environment
by ensuring that the devices
or components (for example
batteries) are not disposed in
household waste, but only in
accordance with local regulations
and in an environmentally safe
manner, e.g. using certified firms
and recycling specialists or at
collection points.
■
The indoor and outdoor
modules must be kept free
of soiling, vegetation and other
deposits.
The device is to be cleaned with
a damp cloth. In doing so, it is
to be ensured that no caustic,
abrasive or solvent-based
cleaning products are used. Use
of powerful water jets is to be
avoided.
The fins on the outdoor module
are to be cleaned at least once
a year.
Maintenance
Warranty
Prerequisites for possible warranty
claims are that the customer or
his accepting representative has
completely filled out the "warranty
registration card" supplied with
the unit and returned it to REMKO
GmbH & Co. KG REMKO GmbH
& Co. KG and placing the unit in
service.
The warranty conditions are listed
in the "General Business and
Delivery Conditions". Furthermore,
only the parties to a contract
can strike special agreements
beyond these conditions. For this
reason please contact your direct
contractual partner first.
■
To perform the statutory seal
test, it is necessary to arrange
an annual maintenance contract
with an appropriate specialist
firm.
NOTE
As the refrigerant capacity
exceeds 3kg, an annual seal
inspection must be made
of the refrigerant circuit by
a firm specializing in this
field. A heating system should
always be serviced annually.
Therefore, we recommend
arranging for a service
contract that includes the seal
inspection.
Temporary
shut-down
The system may not be switched
off at the mains power supply even
if the heating system is not used for
heating purposes over an extended
period (e.g. holidays)!
■
The system is to be switched
to "Stand-by" mode during
temporary shut-down periods.
■
Heating phases can be
programmed for the duration
of the period of absence.
■
The previous operating mode
has to be switched back on
when the shut-down phase
is over.
■
Instructions for changing
the mode appear in the
corresponding chapter of the
heat-pump manager's manual.
NOTE
In "Standby" , the heat pump
is in standby mode.
Of the entire system, only
the frost-protection function
s activated.
! CAUTION
Prior to performing any
work, ensure the equipment
is isolated from the voltage
supply and secured to prevent
accidental switch-on! Note
that several power feeds
(circuits) are brought together
in the interior module.
5
REMKO CMF - DUO
Intended use
The heat pump in general
Depending on the model, the
equipment and the additional
fittings with which it is equipped
is only intended to be used as an
air-conditioner for the purpose of
cooling or heating the air in an
enclosed room.
Different or additional use shall not
be classed as intended use. The
manufacturer/supplier assumes no
liability for damages arising from an
unintended use of the equipment.
The user bears the sole risk in such
cases.
Using the equipment as intended
also includes working in accordance with the operating manual
and installation instructions and
complying with the maintenance
requirements.
Economical and environmentallyconscious heating
The burning of fossil-based
energy sources in order to
generate power creates severe
consequences for the environment.
A high percentage of fossil fuels
is also problematic due to the
limited resources of oil and gas
and the price increases resulting
from this. For this reason, many
people today are thinking both
economically and environmentallyconsciously in terms of heating.
The application of heat pump
technology enables both of these
concepts to be combined. It
makes use of the energy which
is permanently available in the air,
water and soil and converts it into
usable heating energy by means
of inputting electrical energy.
Yet in order to generate heat
equivalent to 4kWh, only 1kWh
of electricity is required. The rest
is made available free-of-charge by
the environment.
Heat source
There are essentially three heat
sources that heat pumps can
derive energy from. air, soil and
groundwater. Air heat pumps have
the advantage that air as a source
heat is available everywhere in
unlimited quantities that can be
used free of charge. A disadvantage
is that the outside air is at its
coldest when the heat requirement
is greatest.
Brine heat pumps extract energy
from the soil. This is undertaken
in serpentine pipe networks
which are laid approx. 1m deep
or placed by means of drilling.
The disadvantage is the large space
requirements for the serpentine
pipe networks or the high cost of
drilling. A long-term cooling of
the soil is also a possibility.
Water heat pumps require two
wells in order to obtain heat from
the groundwater, one supply well
and one dry well. The development
of this source is not possible
everywhere, it is expensive and
requires planning permission.
Arguments for REMKO
75%* of the heat
comes from the air,
free of charge
75% *
■
Low heating costs in comparison
to oil and gas
■
Heat pumps represent a
contribution to environmental
protection
■
Lower CO2 emissions in
comparison to oil and gas
heating
■
All models are able to cool as
well as heat
■
Low noise-level of the outdoor
unit
■
Flexible installation due to split
system design
■
Negligible maintenance costs
free
solar energy
from the air
25% *
electrical
drive energy
Heating
* The relationship can vary depending on outdoor temperature and operating conditions.
6
A heat pump is a device which
makes use of a working medium
to absorb ambient heat under low
temperatures and transports this
heat to a place where it can be
of use for heating purposes. Heat
pumps work according to the same
principles as a refrigerator. The
difference is that heat, the byproduct of the refrigerator, is the
goal of the heat pump.
The main components of the
cooling circuit consist of an
evaporator, a compressor,
a condenser and an expansion
valve.
In a finned evaporator,
the refrigerant evaporates both
because of lower pressure and
because of lower heat-source
temperatures through absorption
of energy from the environment.
In the compressor, the refrigerant
is brought to a higher pressure and
temperature by the application
of electrical energy.
Next, the hot refrigerant gas
reaches the condenser, a plate
heat-exchanger. Here the hot gas
condenses, transferring heat to
the heating system.
The liquefied refrigerant then
expands and cools in a flow
regulator, the expansion valve.
Then the refrigerant flows into the
evaporator once more and the cycle
is complete.
For control, a heat-pump manager
is included which ensures the
independent operation of all safety
devices.
The water-circulation system of the
Series CMF consists of a charging
pump, plate heat-exchangers, dirt
traps, a manometer, fill- and drain
valves, an automatic air-bleeder
and flow monitor.
The CMT series has, in addition,
a 3-way switching valve and
a buffer storage.
Wall- and floor consoles,
condensate pans, condensate-pan
heating, a 3-way switching valve,
a bypass valve and other sensors
are available as accessories.
Indoor area
Condensing
Evaporation
Heat pumps can work in various
operating modes.
Monovalent
The heat pump the only source of
heat for a building all year round.
This mode is particularly suitable
for heating plants with low supplywater temperatures and is primarily
used in combination with brine/
water and water/water heat
pumps.
Single energy source
The heat pump has an E-heater
to handle peak loads. The heat
pump covers the majority of
the required heating power.
Occasionally, when it is extremely
cold outside, an electrical boosterheating system switches on as
required in order to support the
heat pump.
Bivalent parallel
Functional diagram heating
inverter heat pump
Outdoor area
Heat pump modes
Liquefying
The heat pump provides
the entire heating energy down
to a predetermined outdoor
temperature. If the temperature
drops below this value, a second
heat source switches on to support
the heat pump.
There is a distinction to be
made here between alternative
operation with oil- or gas heat and
regenerative operations with solar
energy or wood-fired heating.
This mode is possible for all heating
systems.
Decompression
Heating pump outdoor unit
Heat pump indoor unit
7
REMKO CMF - DUO
Layout
The total area of the floor surfaces,
exterior wall windows, doors
and roofing is required in order
to determine the transmission
heat requirement. In addition,
information about the materials
used in the building is required,
as these lead to extremely varied
thermal transmission coefficients
(the so called K value). Also required
are the room temperature and the
standard outdoor temperature,
that is, the lowest outdoortemperature on average that will
occur during the year. The equation
for calculating the transmission-heat
requirement is
Q=A U (tR-TA) and must be
calculated separately for all roomenclosure surfaces.
The infiltration heat requirement
takes into consideration how often
the heated room air is exchanged
for cold external air. The room
volume (V), the air exchange
frequency (n) and the specific heat
8
10
Low-energy house built in 2002
40
according to energy conservation
order regarding heat insulation 1995
60
Modern building constructed around 1984
80
Partially-renovated old building
constructed pre-1977
Non-renovated old building
constructed pre-1977
100
200
capacity (c) of the air is also required
in addition to the room temperature
and average low temperature.
The equation is:
Q=V x n x c (tR-tA)
An approximate allowance for
heating water - per person
according to VDI 2067: 0.2 kW
A residential home comprised of 150
m² living-space and a heat requirement
of 100 W/m² has been selected for
the example design. A total of five
persons live in the house. The heat
load amount to 15 kW. Adding a
drinking water allowance of 0.2 kW
results in a required heat output of
16 kW. Depending on the power
company, an additional charge must
then be made in order to factor in the
service time-out period. The rating
and determination of the heat pump's
balance-point temperature derives
graphically from the heat pump's
temperature-specification heat-output
diagram. (In the example, 35 °C for
a floor heating-system). Next, the
heat load for the standard outdoor
temperature (the lowest temperature
of the year locally) and the heat
threshold are marked on the graph.
The outdoor-temperature-dependent
heating requirement, simplified here
as a straight-line relationship between
heat-load and the start of the heating
season, is recorded in the graph of
heat-load curves. The intersection
of the two straight lines with the
max. heat-load curve is plotted on
the X axis, where the balance-point
temperature is read. (in the example,
ca.-4°C) The least load of the 2nd heat
source is the difference between heat
load and the heat pump's maximum
heat output on these days. (In the
example, the capacity necessary to
cover peak loads is ca. 6 kW.)
Heat output at a supply temperature of 55°C
Heizleistung bei Vorlauftemperatur 55 °C
Heat output [KW]
For a precise calculation, various
factors must be considered. The
transmission-heat requirement,
the infiltration heat-loss and
an allowance for water heating
comprise the total heating output
which the heating system must
provide.
Specific heating output in W/m2
Passive energy house
40
n-max
Heat load according to
DIN EN 12831
35
n-max.
Heizlast nach
DIN EN 12831
30
Heizleistung [kW]
A precise calculation of the
building's heating load according to
EN 12831 is required for the design
and dimensioning of a heating
system. However, approximate
requirements can be determined
based on the year of construction
and the type of building. The
adjacent table shows the
approximate specific heating loads
for a number of building types. The
required heating system output can
be calculated by multiplying the area
to be heated with the given values.
Building type
Rated frequency 76/77 Hz
25
Nennfrequenz 76/77 Hz
Minimum
Mindest20
performance
leistung
2. heat source
2. Wärme-
n-min
erzeuger
15
n-min.
Heat load plus warmwater requirements and
service
time-out period
Heizlast plus
10
Heat load
5
Warmwasserbedarf und
Aufschlag Sperrzeiten
Heizlast
0
Standard outdoor
temperature
Bivalent temperature
Outdoor
temperature [°C]
0 1 2 3 4 5 6 7 8 9 10
-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1
Norm-Außentemperatur
Bivalenzpunkt
Außentemperatur [°C]
Diagramm Heizleistung W55_2 (2)
Heating threshold for old construction
11 12according
13 14 15 to
16VDI
17 4650
18 19 20
Heizgrenze für Altbau nach VDI 4650
Characteristics of REMKO inverter heat pumps
Outdoor air as a heat source
An air/water heat pump absorbs
energy from the outdoor air as its
heat source and transmits this to
the heating system.
They have the following
advantages over brine/water and
water/water heat pump systems:
■
Can be used everywhere
Air is available everywhere
in unlimited quantities. For
example, no wells are required.
■
No excavation required
No large areas are required for
soil collectors.
■
Economical
Expensive drilling is not required.
■
Excellent value for money and
simple installation
The heat pump's condenser is
equipped with a requirementdependent speed control system.
The power control on conventional
heat pumps provides only two
states, either ON (full output) or
OFF (no output).
The heat pump turns on below a
specified temperature and turns off
when this temperature is reached.
This kind of heat regulation is very
inefficient.
Heat regulation in the REMKO
inverter heat pump is modulated to
the actual need.
The electronics system has an
integrated 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 lifetime 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
heat-pumps will run practically
throughout the heating season.
In all, the highest efficiency
possible.
■
Particularly suitable for lowenergy houses with low inlet
temperatures
■
Ideal for bivalent operation, in
order to save energy
Temperature
Modern inverter technology
Split AC unit
The REMKO inverter heat pump is
a so called split AC unit. This means
that it consists of an outdoor unit
and an indoor unit, both of which
are connected via refrigerantcarrying copper pipes. Thus there
are no water-carrying pipes laid
from the indoors to outdoors which
need to be made frost proof.
The outdoor unit contains only the
condenser, the evaporator and the
expansion valve. This means that
the outdoor unit is considerably
smaller.
The indoor module contains
the system's condenser and
the connections for the heating
network.
Conventional
Inverter
1/3
Minimal temperature fluctuations mean
energy savings
When it is switched on, the inverter only requires
one-third of the time of conventional systems
Time
NOTE
Thanks to innovative inverter technology, this heat pump will
almost always operate by adapting its heat output to the actual
requirements of the heating season, and will in fact turn itself off
when heat is no longer needed. The same applies in the opposite
direction with cooling.
9
REMKO CMF - DUO
Defrost by circulation reversal
Cooling mode
At temperatures below about
+5°C, humidity freezes in the
evaporator (outdoor module) and
an ice layer can form which reduces
heat transfer from the air to the
refrigerant and to the air stream.
This layer of ice must be removed.
A four-way valve serves to reverse
the refrigerant circuit, so that the
hot gas from the compressor flows
through the original evaporator and
the ice that has formed there can
melt.
The defrost process is not initiated
after a predetermined time; rather it
is carried out as required in order to
save energy.
Because of circuit reversal, cooling is
also possible.
In cooling mode, the components of
the refrigeration circuit are used to
produce cold water with which heat
can be extracted from a building.
This can be accomplished with
dynamic cooling or passive cooling.
Under dynamic cooling the
refrigerating capacity is actively
transferred to the indoor air. This is
undertaken by means of water-based
fan convectors. In doing so, it is
desirable that the inlet temperatures
are under the dewpoint, in order to
transfer a higher refrigerating capacity
and to dehumidify the indoor air.
Passive cooling refers to the
absorption of heat via cooled floors,
walls or ceiling surfaces. In doing
so, water-carrying pipes make the
structural sections into thermically
effective heat exchangers. In order
to achieve this, the refrigerant
temperature has to lie above the
dew point, in order to avoid the
formation of condensation. Dewpoint
monitoring is required for this
purpose.
We recommend dynamic cooling with
fan convectors, in order to achieve
increased thermal performance and in
order to dehumidify the air on muggy
summer days. The advantage here
is that dewpoint monitoring is not
required.
Relative humidity in %
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-conditioning buildings.
100
uncomfortably
humid
90
80
70
60
comfortable
50
40
30
still comfortable
20
10
0
10
uncomfortably
dry
12
14
16
18
20
22
24
26
28
30
Room air temperature in oC
10
Layout of the indoor unit
The role of the indoor unit of the
CMF 320 Duo Inverter Heat Pump
is to convert the condensation heat
supplied by the outdoor unit for
use on the heating side. The indoor
unit is therefore equipped with a
charge pump and a safety module
on the water side.
Furthermore, an electrical booster
heater can be incorporated as an
option. The CMF 320 Duo can
be used both for monoenergetic
and bivalent operation. Bivalent
operation means the use of the
heat pump with a second fullyfledged heat generator (boiler).
The CMF 320 Duo always requires
an external storage tank, in order to
guarantee good control behaviour
and a minimum water volume
for defrost energy. The required
size and type of storage tank are
dependent first and foremost on
the output of the second heat
generator, and on any additional
system components (e.g. solar
energy system, solid-fuel boiler).
CMF 320 Duo - Indoor unit
Fold-down electrical
control box
Terminal block X2 for external components,
such as heating-circuit pumps, etc.
Unoccupied space for circuit breakers
for the optional electric booster heater
Terminal block X3 for external
temperature sensor
Terminal block X1 for the power supply
to the indoor module
Mode switch
Identification plate and quick-reference
guide are found inside the hinged panel
11
REMKO CMF - DUO
Installation instructions
The indoor unit must be connected
to the two outdoor modules with
refrigerant pipes of dimensions
(outside diameter) 3/8” (approx.
16 mm) and 5/8” (approx. 10 mm).
At least one four-wire control cable
must be laid between the indoor
unit and each of the two outdoor
modules.
Both the indoor unit and outdoor
modules each require a separate
power supply. The power supply
for the indoor unit must not be
permanently switched off in the
event of a block by the energy
supplier
System Layout CMF 320 Duo
Indoor unit
CMF 320 Duo
Mains cable
Indoor unit
(3x1.5mm2)
Mains cable
Electric booster
heater (optional)
(5x2.5 mm2)
condensate drain
Hot-water supply
and return pipes
(DN 32)
Outdoor unit A
Outdoor unit B
Mains supply
400V/3~50Hz 16A
(5x2.5 mm2)
Fan
Condensate drain
(must be designed to be frost proof!)
12
Control lines
(4x1 mm2
or standard
5x1.5 mm2)
Coolant lines (Cu pipe)
1pc. each 3/8“ and 5/8 “
Mains supply
400V/3~50Hz 16A
(5x2.5 mm2)
Fan
Condensate drain
(must be designed to be frost proof!)
General Information
■
These instructions are to be
observed when installing the
entire system.
■
The device should be delivered
as near as possible to the site
of installation in its original
packaging in order to avoid
transport damage.
■
■
■
The device is to be checked
for visible signs of transport
damage.
Possible defects must be
reported immediately
to contract partners and the
forwarding agent.
Suitable sites for installation are
to be selected with regard to
machinery noise and the set-up
process.
Wall breakthroughs
■
■
The exterior components are
pre-filled with refrigerant up to
a distance of 30 meters from
the interior component. If the
basic length of the refrigerant
line exceeds
30 metres, add refrigerant.
Establish all electrical
connections in accordance
with the relevant DIN and VDE
standards.
■
The electrical power cables
must be fastened to the
electrical terminals in the proper
manner.
Otherwise there is a risk of fire.
■
See that neither refrigerant
or pipes that carry water pass
through living- or sleeping
areas.
The shut-off valves for the
refrigerant lines may only be
opened immediately before
commissioning of the system.
! CAUTION
Open refrigerant pipes must
be protected against the
introduction of moisture by
means of suitable caps or
adhesive strips Refrigerant
pipes may not be kinked or
compressed. Refrigerant pipes
may only be cut to length with
a suitable pipe cutter (use no
hacksaws or the like).
■
A wall opening of at least 70
mm diameter and 10 mm slope
from
the inside to the outside must
be created.
■
To prevent damage, the interior
of the wall opening should be
padded or, for example, lined
with PVC pipe (see figure).
■
After installation has been
completed, use a suitable
sealing compound to close off
the wall breakthrough under
observation of fire protection
regulations (responsibility of
customer).
Control cable
Liquid line
Supply
Hot gas line
! CAUTION
The installation of refrigerant
equipment may be undertaken
only by trained specialist
personnel.
! CAUTION
All electrical installation work
is to be performed by speciality
companies.
13
REMKO CMF - DUO
Installation or setting up the
indoor module
■
The wall bracket is to be
attached to the wall with the
fasteners supplied and the
indoor module hooked onto it.
■
The wall must possess sufficient
load-bearing capacity for the
weight of the indoor module.
■
Ensure that the wall bracket
is installed level.
■
The indoor module can be
aligned precisely by means of
the adjustment screws on the
back of the housing.
The indoor module is to
be mounted in such a way
that all of the sides have
sufficient space for purposes
of installation and maintenance.
It is equally important that
there is sufficient space above
the device for installing the
safety assembly.
■
Outdoor-module installation location
■
The device may be attached
only to a load-bearing structure
or wall. Ensure that the outdoor
modules are installed only
vertically. The installation site
should be well ventilated.
■
To minimise noise, install floor
consoles with vibration dampers
and a considerable distance
from acoustically-reflective
walls to minimise noise.
■
■
If the outdoor modules are
erected in an area of strong
winds, then the device must be
protected against them. The
snow line is to be observed
during installation (see figures).
■
The outdoor modules must
always be installed on vibration
dampers. Vibration dampers
prevent the transmission of
vibrations through the floor or
walls.
■
A heated, condensate catchpan ensures that condensation
from the pan can drain off.
Ensure that the condensate
is prevented from freezing so
that it can drain off (gravel,
drainage). The Water Ecology
Act is to be observed.
Wall mounting CMF 320 Duo
NOTE
Only fasteners suitable for the
given application may be used.
14
The minimum clearances
specified on the next page
should be maintained when
carrying out the installation.
These minimum distances serve
to ensure unrestricted air intake
and exhaust.
Additionally, there must be
adequate space available for
installation, maintenance and
repair.
■
If there is insufficient space
under the device for the
refrigerant lines, then the precut recesses can be removed
from the lower enclosure-panel
and the pipes guided through
these openings.
■
During installation, add about
20 cm to the expected snow
depth to guarantee unimpeded
intake and exhaust of outdoor
air year round.
■
The installation site of the
outdoor modules should be
agreed together with the
operator primarily so that
operating noise is minimised
and not in terms of “short
routes”. Thanks to the splitdesign technology there
are a great deal of different
installation options with almost
identical efficiency available.
NOTE
The site for the outdoor
module must be selected
so that machinery noise that
occurs disturbs neither the
residents nor the facility
operator. Observe the TAnoise specifications as well
as the table containing the
drawings relating to sound
pressure levels on page 45!
Wind
Snow + 20 cm
Assessment level in
accordance with TA
noise
Point of emissions
Industrial areas
Commercial areas
Core areas, village areas and mixed zones
General residential areas and small housing estates
Exclusively residential areas
Spa areas, hospitals and mental institutions
dB(A)
dB(A)
dB(A)
dB(A)
dB(A)
dB(A)
days
nights
70
65
60
55
50
45
70
50
45
40
35
35
Isolated noise peaks of short duration may not exceed 30 dB(A) during the day and 20 dB(A) at night.
Minimum distances in mm for the outdoor units and in brackets for the CMF 320 Duo
depending on the enclosure


j Positioned side-by-side next to a wall, air outlet open to the front, flow restriction behind
k Positioned side-by-side next to a wall, air outlet impaired to the front, flow restriction in front and behind
l Positioned back-to-back; air outlet open to the front
j
k








l

































15
REMKO CMF - DUO
Condensate draining and
ensured discharge
Condensate connection
If the temperature falls below the
dew point, condensation will form
on the finned condenser during
heating operation.
A condensate drip pan should be
installed on the underside of the
unit to drain any condensate.
■ The condensate drain pipe to
be installed on-site must be installed with a in cline of at least
2 % for good drainage.
If necessary, fit vapour density
insulation.
■ When operating the system at
outdoor temperatures below
4 °C, care must be taken that
the condensate line is frost
protected. The lower part of the
housing and condensate pan
are to be kept frost free in order
to ensure permanent drainage
of the condensate.
If necessary, fit supplementary
pipe heating.
■ After completed installation,
check that the condensate
drainage is unobstructed and
ensure that the line is leak tight.
Leg
Condensation catch pan
Floor bracket
Foundation
Condensate drainage-heating
Drain pipe
Soil
Gravel layer for
seepage
Leg
Condensation catch pan
Floor bracket
Foundation
Ensured discharge in the event of
leakage
NOTE
Local regulations or environmental laws, for example the
German Water Resource Law
(WHG), can require suitable
precautions to protect against
uncontrolled draining in case
of leakage to provide for safe
disposal of escaping refrigerator oil or hazardous media.
16
Condensate drainage-heating
Drainage channel
Soil
Hydraulic connection
NOTE
■
A separate interpretation of
nominal flow rate must be
made for every system (see
attachment: Technical Data).
As delivered, the safety
assembly consists of a
manometer, air bleeder and
safety valve. It is to be mounted
to the pipe connection provided
on the indoor module.
■
Install the dirt traps delivered
with the unit outside the heat
pump in the return line. Ensure
that the dirt trap remains
accessible for inspection.
■
Be sure to position one gate
valve upstream and another
downstream of the dirt traps.
This ensures that the dirt traps
can be checked at any time
without loosing water.
■
The dirt traps must be checked
during every service of the
system.
■
Additionally, a hand-operated
bleeder is installed on the heat
pump for additional bleeding.
■
All visible metallic surfaces must
be additionally insulated.
■
Cooling mode via the heating
circuit requires a completely
vapour diffusion tight insulation
along the entire length of the
pipework.
■
All outgoing heating circuits,
including the connections
for water heating, are to be
secured against circulating
water by means of check
valves.
■
Before being placed in service,
the system must be thoroughly
flushed. Conduct a seal test and
perform a thorough bleeding
of both the indoor module and
the entire system - repeatedly,
if necessary.
Automatic bleeder
■
■
■
■
We recommend installing
a buffer storage unit as
a hydraulic switch for
hydraulically isolation of the
heating circuit.
Make a pipe-network
calculation before installing the
heat pump. After installing the
heat pump, it is necessary to
perform a hydraulic balancing
of the heating circuit.
Manometer
Indoor unit
■
Protect floor heating systems
against excessively high inlet
temperatures.
Do not reduce pipe diameters
for the supply and return
connections to the heat pump
before connecting a buffer
storage-unit.
■
Plan for air bleed valves and
drain-off taps at appropriate
places.
■
Flush the the system's entire
pipe network before connecting
the heat pump.
■
One or, where necessary,
several expansion tanks must
be designed for the entire
hydraulic system.
■
The system pressure of the
entire pipe network is to be
matched to the hydraulic
system and must be checked
when the heat pump is turned
off. Also update the staticpressure form supplied with the
heat pump.
Safety valve
■
The heat pump requires a
constant, minimum standingwater volume of 100 litres to
guarantee power for defrosting
and to assure a minimum
running time. Buffer storage
unit
The stop cocks supplied are to
be positioned directly at the
connections for the heat pump
for the heater circuit inlet and
return lines.
The shut-off valves each contain
a thermometer.
! CAUTION
Turning the thermometer
heads serves to close or open
the stop valves! The dial be
brought into the desired position.
NOTE
Actual schemas for hydraulic
integration can be found on
the internet at www.remko.de
17
REMKO CMF - DUO
Corrosion protection
Oxygen always plays a role if
metal materials in a heating system
corrode. pH values and the salt
content also play a major role.
The challenge: A licenced plumber
who would like to be able to
guarantee his customers a hot
water heating system not at risk of
corrosion from oxygen - without
the use of chemicals - must pay
attention to the following:
See the following table for the requirements in accordance with VDI
2035 Part 1 with regard to total hardness.
Total hardness [°dH]
subject to the specific system volume
Overall
output in kW
<20 l/kW
>20 l/kW and
<50 l/kW
>50 l/kW
to 50 kW
<16.8 °dH
<11.2 °dH
<0.11 °dH
The following table provides the allowed oxygen content in connection
with the salt content.
1. Correct system design by the
heating contractor/planner.
Reference values for the hot water in accordance with VDI 2035 Part 2
2. Subject to the installed materials: filling the heating system with
demineralised softwater or fully
deionised water, checking the pH
value after 8 to 12 weeks.
Electrical conductivity at
25°C
low-salt
saline
μS/cm
< 100
100-1500
mg/l
< 0,1
< 0,02
Oxygen content
pH value at 25°C
8,2 - 10,0*)
*) For aluminium and aluminium alloys the pH value range is limited: the pH value at 25°C is 8.2-8.5 (max. 9.0 for aluminium alloys)
Water treatment with chemicals is not necessary
1. to the failure of elastomer materials,
Adding chemicals to treat water
should only be done as an exception.
VDI 2035 Part 2 requires explicitly
under Point 8.4.1 that all water
treatment be explained and documented in the system log book.
2. to blockages and deposits because of sludge formation,
This has reasons: The improper use
of chemicals often leads
18
3. to defective floating seals in
pumps and
4. finally to the formation of biofilm which can cause microbial influenced corrosion or significantly
impair heat transfer.
NOTE
For low-salt water and the
correct pH value, even oxygen concentrations up to 0.5
mg/l can be tolerated for short
periods.
Electrical connection
■
■
■
■
■
It is necessary to lay a
power-supply cable both to
the outdoor module and,
separately, to the indoor
module.
Power to the indoor module
may not be disconnected by
the power company. (Frost
protection)
The indoor modules require a
single-phase power supply at
230 V. / 50 Hz.
The outdoor module can be
supplied with three-phase
voltage at 400 V / 50Hz.
The electrical connection
between outdoor- and indoor
modules is made using fourwire control cable.
■
Special rates for heat pumps
may be offered by the powercompany (PSC).
Ask your local power company
about the details of any rates
that might be available.
Electrical Junction Box
Circuit board
HP-manager
Control board
Terminals
for external components
Relays
Power supply
indoor unit
Sensor terminal block
Display
operating unit
! CAUTION
Check all plugged and clamped
terminals to verify that they
are seated correctly and make
permanent contact. Tighten as
required.
■
Where applicable, a separate
power supply shall be provided
to the indoor module for
electric booster heating.
■
The heat-pump manager needs
to know whether a powercompany release- or off-period
is in effect. An electricallyisolated switch must be installed
for this purpose. (An open
switch signifies power available,
an open switch, off-time.)
! CAUTION
A connection schematic along
with corresponding circuit
diagrams can be found in the
appendix of this manual.
! CAUTION
■
■
Always note the currently
applicable VDE guidelines and
the notes in TAB 2007. The size
and type of the fuse are to be
taken from the technical data.
All electrical installation work
must be done by an electrician
! CAUTION
All cable sizes are to be selected
according to VDE 0100. Special
attention should be given to
cable lengths, cable type and
the kind of installation. The
information in the connection
diagram and in the system
overview are to be seen as an
acceptable installation possibility
only in a standard case!
! CAUTION
Make sure to connect the
outdoor module's neutral
connector properly, otherwise
the varistors on the line-filter
circuit board will be destroyed.
19
REMKO CMF - DUO
Electrical connection indoor module
2 Loosen the screws
The number of lines and the
sensors is dependent on the
configuration of the heating
system and the components.
1. Fold down or remove the lower
housing-cover (Fig. 1).
2. Loosen the two screws that
secure the front of the housing
and move it upward (Fig. 2).
3. Loosen the two screws that
secure the control-box cover,
and lower it. Now, the cover
can be removed (Fig. 3) and
the control box
be lowered for inserting the
electric cables. (Fig. 4).
NOTE
NOTE
Attach cables in accordance
with the connection schematic
and/or the circuit diagram in
the control box.
3 Loosen the screws
! CAUTION
Ensure correct polarity when
connecting the electrical leads,
especially the control cable.
4. Thread the power cable - as
well as the control cable
between the indoor- and
outdoor modules and the cables
for external devices and sensors
- though the cable openings
into the indoor module (Fig. 5).
Note that the cable openings
in the CMT series are located
above rather than below.
! CAUTION
4 Loosen the safety chain
Make sure to use enough cable
when installing the indoor
module so that the control box
can be fully lowered for future
maintenance.
! CAUTION
At the site, avoid adding cable
inlets.
1 Remove the lower housing-cover
20
5 Insert the cables
Electrical connection outdoor module
■
■
Electrical protection for
the system is implemented
in accordance with the
information in the technical
data (see appendix). Observe
the required conductor crosssections!
■
All cables must be connected
with the correct polarity and
strain relief.
■
Follow the connection
schematic and the circuit
diagram.
The side wall of the the unit is to
be removed by means of loosening
the screws in order to connect the
mains supply (see "Installation of
the Outdoor Module").
Screw
Screws
■
If the outdoor module is
installed on a roof, it and the
supporting structure must be
earthed separately. (Connection
to a lightning rod or a concretefooting earth electrode)
! CAUTION
■
Connect the four-wire control
cable to terminals S1, S2, S3
and the earth terminal.
■
When connecting the control
cable, make sure that polarity is
correct.
Make sure to connect the
outdoor module's neutral
connector properly, otherwise
the varistors on the line-filter
circuit board will be destroyed.
Connection terminals - outdoor module CMF 320
Mains connection
400V/3~/50Hz
Control cable
Outdoor-module
connection
Anschluss Außenmodul
L1
L1
L2
L3
N
L2
L3
N
PE
Netzzuleitung
Mains cable
400V/3~N/50Hz
400V/3~/50Hz
PE
S1
S2
S3
S1
S2
S3
Indoor-module
connection
Anschluss Innenmodul
21
REMKO CMF - DUO
Temperature sensors
■
The number of sensors required
can vary with the type of
system.
■
In the indoor module (F11),
the collector sensor, the return
sensor (F17) and the sensor
for the liquid line (refrigeration
circuit) are already installed and
connected.
■
Observe the pertinent notes
for the sensor position found
in the hydraulic schematic.
■
The standard model
includes an external sensor,
a submersible sensor (intended
for use as a custom hot-water
sensor), as well as a contact
sensor.
■
■
22
When connecting solar panels,
the PT-1000 sensor must be
used to measuring the collector
temperature! (F14) All other
sensors must be NTC-sensors
with a reference resistance of
5 kilo Ohms.
All sensors are to be connected
to the indoor-module
switching-cabinet according
to the terminal-assignment
diagram.
Contact sensor
External sensor
Contact sensors can be mounted
on the pipes, to measure the
heating-circuit temperatures, for
example.
The connection of an outdoor
sensor is always required for the
heat pump manager.
■
The contact sensor is fastened
to a pipe with the trapezoidal
brackets and retaining strap
provided.
■
Clean the mounting point on
the pipe. Subsequently a thermal
compound (A) is applied and the
sensor is fixed in position.
NOTE
If the sensor cables are too short,
they can be extended up to a
maximum of 100m with wire
having a cross-section of 1.5 mm².
■
Mount the outdoor sensor
pointing skyward, in a northeasterly direction, about 2.5
metres above the ground. It
may not be subjected to direct
sunlight and is to be protected
against excessive wind.
Installation above windows or
air ducts is to be avoided.
■
In order to carry out the
installation, remove the cover
and secure the sensor with the
screws provided.
■
A cable with wire cross-sections
of 0.5 mm² is recommended
for connecting the sensor.
Connection of refrigerant lines
■
■
■
■
The outdoor- and the indoor
modules are connected with
two copper pipes of refrigerator
quality having the dimensions
“ and “ (REMKO special
accessory).
8 Correct flange shape
Tighten 1st Spanner
Observe the permitted bending
radius for the refrigerant pipes
during installation in order to
prevent kinks. Never bend a
pipe twice in the same place in
order to prevent embrittlement
or crack formation.
Assure suitable fastening and
insulation when laying the
refrigerant pipes.
The copper pipes are to be
flared to make the connections
to the modules. In doing so,
check that the flare has the
correct shape and suitable
union nuts. (Figs. 6 - 8).
Tightening
torque
Counter
2nd Spanner
Copper piping
Outside diameter
Flare
dimensions ø A
3/8” or 9.52 mm
12.8 - 13.2 mm
5/8” or 15.88 mm
19.3 - 19.7 mm
■
Refrigerant line
■
Deburrer
■
Flanging tool
“: 32-40 Nm
“: 65-75 Nm
■
The installed refrigerant pipes,
including the flare connections,
must be provided with suitable
insulation.
■
Special measures need not be
taken for the return of the compressor oil.
Connection to the unit
6 Deburring the refrigerant line
7 Flanging the refrigerant line
9 Tighten fittings
Remove the cover panel from
the outdoor module. It may be
necessary to remove the precut bushings.
Take off the factory-fitted
protective caps. You can use
the union nuts for additional
mounting. Make sure to slide
the union nuts onto the pipe
before it is flared.
Make connections to the device
by hand initially, in order to
ensure a good fit. Later, tighten
the joints with two open-end
wrenches Use one wrench to
resist the rotation of the other
(Fig. 9).
NOTE
Outdoor modules may be
delivered with nuts suitable for
joining flanges.
NOTE
Use only tools which are
approved for use in an HVAC
environment. (z. B.: bending
pliers, pipe/tubing cutters, deburrers and flaring tools). Do
not cut refrigerant pipes with a
saw.
! CAUTION
All work must be carried out
in a way that prevents dirt,
particles, water etc. from
entering, refrigerant lines!
23
REMKO CMF - DUO
Placing the refrigeration system in service
Monitoring for leaks
Add refrigerant
■
Connect the manometer to at
least one Schrader valve on the
shut-off valves of the outdoor
module.
■
The outdoor module is prefilled with refrigerant sufficient
for a length of ordinary pipe
up to 30 metres.
■
The leak test must to be
undertaken with dried nitrogen
at a test pressure of 40 bar for
a period of 30 minutes.
■
■
Pipeline joints and connectors
must be checked with a suitable
leak detector and any leaks
rectified.
If the length of any
pipe exceeds 30 metres,
a supplementary refrigerant
charge of 600g per 10 metres
of pipe (single length) is
required.
Connecting the cold circuit
■
After the previously described
work and tests, the shut-off
valve must be completely
opened counter-clockwise
with the appropriate hex key.
Doing so connects the outdoor
module cryogenically with the
outdoor module. Only at this
point is the heat-pump system
cryogenically functional.
■
Next, screw on the cover
caps and check the seals of
the entire shut-off valve for
tightness.
■
Now come the performance
tests and supplementary
isolation of all connections to
prevent condensation shorts.
Pumping down to vacuum
■
Excess pressure must be
removed from the refrigerant
pipes.
■
The vacuum pump should show
a final partial pressure of no
more than 10 mbar in order to
remove all foreign gasses and
moisture from the pipelines.
■
The time required to generate
the vacuum depends on
the length of the refrigerant
pipes. A test time of at least
60 Minutes is recommended.
When the foreign gasses have
been completely removed from
the system, the valves on the
manometer station are closed.
! CAUTION
Only refrigerant in a liquid
state may be used to fill the
cooling circuit.
! CAUTION
! CAUTION
A vacuum of
at least 20 mbar must be produced!
24
The connection of refrigerant pipes and the handling of
refrigerant may be carried out
only by authorised specialists
(competence category I).
Control panel
Green indicator light
Outdoor module A is activated
Green indicator light
Outdoor module B is activated
Red indicator light
Outdoor-module A failure
Red indicator light
Outdoor-module B failure
Heat pump manager
(control-and-display unit)
Mode switch
Position I: Normal operation
This switch turns on the system. The heat pump
and a possible 2nd heat source (6 kW E-heater or boiler),
load- and weather-dependent, are
turned on and off - as well as regulated - automatically.
Position 0: OFF
Position II: Emergency-heat operation
This switch directly turns on all circulation pumps and the
2. heat source (9 kW E-heater or boiler),
bypassing the heat-pump manager.
Use this position only if a serious malfunction of
the heat pump occurs (e.g.: a fault in the outdoor module or
in the heat-pump manager). This function might also be helpful
if heat is ever required and the
outdoor module has not yet been installed or
or placed in service.
! CAUTION
Make sure that no weather-driven control occurs
during emergency-heat operation. Therefore, limit
the inlet temperature at the controller for the
electric booster heater or at the external controller
for the boiler to a maximum temperature matched
to the boiler.
(e.g.: 55 °C for floor heating-systems)!
NOTE
When the heat pump is switched off (position
0 on the function switch), the heating system is
switched off. There is no frost protection function.
25
REMKO CMF - DUO
Notes for commissioning
The Multitalent heat pump
manager serves to operate and
control the entire plant.
The heat pump manager itself
is operated by the control unit.
The control console is connected
to the basic device and is located
behind the flap on the indoor
module.
the parameters that go with
it (see the hydraulic schematic
in the heat-pump manager
handbook).
! CAUTION
After a power failure etc.,the
previously programmed
configuration can be accepted
immediately by pressing the
F-button next to End. This also
happens automatically after a
delay of 10 minutes.
■
■
An intensive visual inspection
is to be carried out before the
actual commissioning.
■
Switch on the electrical supply.
■
The following screen appears
on the Multitalent display.
C
B
System 1 is pre-installed at
the factory. After a reset of
the heat-pump manager, the
parameters for System 1 are
loaded.
■
The system has to be matched
to the customer's personal
values (e.g. inlet temperature).
■
The brief instructions supplied
give an overview of how to set
the most important values.
■ After
configuration, the
system is to be run-in and
the measured values are to be
recorded in the commissioning
report.
NOTE
A
Installation
The heat pump manager is controlled
by means of the following buttons.
The rotary knob (A)
can be used to toggle
between the displayed
menu points or to change
the set values.
Home
Pressing the Home
button (B) always returns
you to the standard
display.
Each of the four function
keys (C) stand for one
of the four rows on the
display. Pressing an F
button serves to select a
menu item or set value.
26
End
OK
■ Check
which system schematic
is used (see the hydraulic
schematic in the heat-pump
manager handbook).
■
■
If the System 1 schematic is
applicable, you need only press
the F-button next to End .
Should a different system
schematic be selected, press
the F-button next to OK to
begin installation.
The configuration in the
installation level for the
selected hydraulics has to be
completely programmed with
The commissioning and
programming of the heatpump manager may be
carried out only by an
installer authorized by
REMKO.
NOTE
Please review the heatpump manager manual for
important details about
successful commissioning.
NOTE
During commissioning,
only a typical heat-manager
pre-set is made. Individual
settings must be optimized
for construction materials and
the practices of various users.
Especially during the first
heating period.
Beschreibung
1
Bedientasten zur Einstellung
2
• Meldeleuchten zur Betriebs- bzw. Störmeldung und
• Symbol zur Anzeige von externer Steuerung
4
Setting instructions for indoor
unit charge pump
Leuchtsymbole zur Anzeige der Regelungsart und Nachtabsenkung
+
Abb. 12 Zyklus der Regelungsarten
Leuchtfelder zur Anzeige der Förderhöhe,
des Förderstroms und der Betriebsart
5
Control panel and possible control
Für weitere Informationen, siehe Abschnitt
9. Störungsübersicht.
1
X
MA
5
Automatische Nachtabsenkung kann bei jeder Regelungsart aktiviert werden.
modesDieofLeuchtsymbole,
the indoor unit
charge
pump
Pos. 4,
siehe Abb.
11, zeigen
die Einstellungen der Pumpe:
Symbol
Symbol
leuchtet
lights
Regelungsart
Control
mode
AUTOADAPT
AUTOADAPT
absenkung
H
!
O
W
PD
100%
EXT
NEIN
NO
Constant
pressure
Konstantdruck
STOP
Q
Automaautomatic
tische
night
Nachtset
back
Proportional
pressure NO
Proportionaldruck
NEIN
h a n g e Vi
XC
ew
F
NO
NEIN
Constant
charactetistic NO
Konstantkennlinie
NEIN
–
er
1. a minimum flow volume
+
Bedientaste zur Änderung der Regelungsart
3
The indoor unit incorporates a highefficiency circulation pump to act
as a charge pump. This circulation
pump guarantees, in conjunction
with a parallel-connected storage
tank (see hydraulic diagram online
at www.remko.de) that the inverter
heat pump will have:
AUTO +
TM03 1288 1505
Pos.
AUTO
YES
AUTO
JA
8.2.2 Sollwerteinstellung
2
Proportional
pressure YES
Proportionaldruck
JA
2. the necessary energy for
Der Sollwert der Pumpe ist durch Drücken d
defrosting
Constant
pressure
YES
Konstantdruck
JA
3
4
oder
einzustellen, vorausgesetzt dass
Constant
charactetistic YES
–
Konstantkennlinie
JA
Regelungsart
Proportionaldruckregelung,
Ko
w
3. optimised load-dependent
h a n g e Vi
c
.
C
.d o
k
ew
-X
"–" = No
keinlight
Licht.
c
c
a
r
u
F
t
control, according to demand
druckregelung oder Konstantkennlinie gewäh
Abb. 11 Bedientastatur
of the inverter heat pump.
wurde.
1 Buttons
adjusting
the power level
8.2.1 Einstellung
derfor
Regelungsart
ung
2 Indicator lights for operating and fault messages
Die Abschnitt
Leuchtfelder,
Pos. 5, auf der Bedientasta
■ In order to ensure smooth
Funktionsbeschreibung,
siehe
3 Buttons for adjusting
the operating mode
AUTOADAPT ohne
functioning as well as7.1
economical
gen den
eingestellten
an.
Regelungsarten.
4 Illuminating symbols
for displaying
the control Sollwert
mode
g eingestellt.
ADAPT
ADAPT
N
AUTO
W
!
lic
k
to
bu
y
N
O
er
PD
o
w
TM03 8752 2407
m
w
C
lic
k
to
bu
y
ADAPT
m
C
w
operation of the system as a
5 Indicator
for
displaying
the current
power
level c
w
Die of
Regelungsart
lässtlights
sichMAGNA
durch
Drücken
der32-100,
Taste
.
.d o
25-100,
40-100(D),
50-100
whole, the charge pump
the
c u -tr a c k
39
, Pos.
inverter heat pump's indoor
unit 3, in Übereinstimmung mit dem nachDie Leuchtfelder können einen maximalen S
stehenden
Zyklus
ändern:
must be set to control
mode
Instructions
for setting control mode and indicators for current power level
von 9 m anzeigen.
“Constant pressure”.
power level of 6 or higher must
be set. The power level required
is dependent on the loss in
pressure from the pipe between
the heat pump and the storage
nstellung
tank. The power level must be
set such that, with the heat
r Betriebs- bzw. Störpump at full power (modulation
depth = 100%), a differential of
ge von externer
10 K Steubetween the heat pump
supply and return lines is not
exceeded!
o
w
temperaturen kann
■ Owing to the internal pressure
werden, dass
nur die
loss of 5.4 kPa and the heat
hrt werden dürfen.
pump's nominal flow volume
ahr!
of 4.4 m3/h, from experience, a
AUTO
ietet:
TM03 1288 1505
derung der Regelungs-
AUTO +
+
H
Abb. 13 Leuchtfelder MAGNA xx-100
+
The pump's automatic nighttime
heat reduction setting must be
Anzeige der RegeMAGNA 25-40, 32-40, 25-60, 32-60
set to NO.
Abb.
12
Zyklus
der
Regelungsarten
bsenkung
NOTE
Die Leuchtfelder können einen maximalen
■ The control modes: AutomatischeOn
the variant with
a hotkann
waterbei
meter
(Multitalent
zeige der Förderhöhe,
anzeigen
von:
Nachtabsenkung
jeder
Rege-Plus), the current
•
AUTO
ADAPT
or
flow
volume
can
be
called
up
on
the
display.
the power level of
nd der Betriebsart
lungsart aktiviert werden. • MAGNA 25-40, Adjust
32-40
= 3 m.
• Proportional pressure control
the charge pump so that it pumps at a nominal
flow volume
of 4.4 m3/h.
Die
Leuchtsymbole,
Pos.
4,
siehe
Abb.
11,
zeigen
• MAGNA 25-60, 32-60 = 5 m.
ehe Abschnittare not suitable.
■
die Einstellungen der Pumpe:
Symbol
Regelungsart
Automatische
27
S
REMKO CMF - DUO
Heat pump manager Multi-Talent Plus (heat flow meters)
The Multitalent heat pump manager PLUS is equipped with the following displays relevant for the heat flow
meters:
Display level
Specialist level
Including in display of favourites
The displays relevant to the heat
flow meters are called up with the
following steps on the heat pump
manager.
The heat pump menu is found in
the specialist level. The parameters for the heat flow meters are
configured here.
Level 0
Level 0
As many as 10 display values can
be copied to level 0. The system
operator can quickly access these
"favourites" for control purposes
without involving himself with the
heat pump manager.
The possible heat flow meter
displays included in the favourite
menu are shown in the following
section.
Fr
23 Apr 10 16:05
T-external
T-collector
19.0 °C
36.2 °C
Heating
Fr
23 Apr 10 16:05
T-external
T-collector
Heating
19.0 °C
36.2 °C
Home
Level 1
Level 1
Main menu
01
Level 3
End
Level 4
End
Level 4 (continued)
07
Output day
Output total
Error
28
04
19.0 °C
36.2 °C
End
Time-Date
Service
Specialist
Level 0
Fr
Specialist
02
End
Heating appliance
Cascade
Heat pump
Heat pump
05
30.2 kWh
99 kWh
00
02
03
09
Level 4
12
Level 0
Fr
End
E1 function
E2 function
E15 function
Heat pump
End
23 Apr 10 16:05
Current output 8070 W
T-collector
36.2 °C
Heating
Level 4 (continued)
Flow volume 28 l/min
Current output 8070 W
Output day 30.2 kWh
Plant
T-external
T-collector
Heating
Level 3
Plant
Hot water
Heating circuit 1
07
23 Apr 10 16:05
Controller
End
Display
User
Time programme
Plant
Fr
End
Level 2
Controller
01
01
Terminal
Controller
Level 2
Display
Level 0
Main menu
End
Terminal
Controller
01
Home
23 Apr 10 16:05
Output day
T-collector
Heating
30.2 kWh
36.2 °C
Level 0
End
Impulse rate
1
Impulse unit
l/Imp
Min FlowVol 12.0 l/min
Fr
23 Apr 10 16:05
Output total 99 kWh
T-collector
36.2 °C
Heating
Troubleshooting and customer service
The unit has been manufactured using state-of-the-art production methods and tested several times to ensure
its correct function. However, in the event that malfunctions should occur, the device should be checked against
the following list. Please inform your dealer if the unit is still not working correctly after all of the functional
checks have been performed.
Fault
The heat pump does
not start or switches
itself off
Heat circuit pump
fails to switch off
Heat circuit pumps
fail to switch on
Possible causes
Remedial measures
Power outage, under-voltage
Check the voltage and, if necessary, wait for it
to come back on
Defective mains fuse
Master switch off
Exchange mains fuse, master switch on
Damaged mains cable
Repair by specialist firm
Power company off-period
Wait until the power-company off-period is
over and the heat pump starts up as required
Operational temperature limits too
low or too high
Observe temperature ranges
Set-point temperature exceeded
Incorrect mode
The set-point temperature has to be higher
than the heat-source temperature, check mode
Clamp fault
Control cable S1-S2-S3-PE
Disconnect the outdoor module, then establish
the correct clamp order using the connection
plan Re-establish voltage to the outdoor
module. Also make sure that the protective
earth is connected correctly.
Incorrect pump switching
Arrange to have pump switching checked in
"heating circuit" expert level
Incorrect mode set
Check mode
Control PCB fuse in indoor module
switching cabinet faulty
Exchange the fuse on the left side of the control
PCB
Incorrect heating program set
Check heating program We recommend the
operating mode "heat" in the cold heating
season
Temperature overlapping, e.g.
external temperature greater than
room temperature
Observe temperature ranges
Troubleshooting
A corresponding error code
appears on the heat pump
manager display in the event
of a fault in the heating system.
The meanings of the displayed
error codes can be taken from
the table on the next page.
The system should be restarted
after a brief shut-down after the
fault has been rectified (turn the
mode switch off then on again).
Subsequently the heat-pump
manager will re-start, automatically
reconfigure and continue to
operate with the set values.
29
REMKO CMF - DUO
Display
Fault description/note
Heatpump fault
(E 54)
Heat pump fault The flow monitor has tripped. A flow problem has occurred. Possible causes
are air in the system, a clogged dirt trap or a defect of the charging pump in the indoor
module. If the red indicator lamp illuminates, there is a problem in the outdoor module which
can only be remedied through customer service.
E 69
Failure or short in supply sensor HK2 (mixing circuit). Sensor F5
E 70
Failure or short inlet pipe WP Multi-purpose sensor 1 Sensor F11
E 71
Failure or short in lower buffer sensor Sensor F12
E 72
Failure or short in upper buffer sensor No assignment by REMKO
E 75
Failure or short, external sensor Sensor F9
E 76
Failure or short, domestic water sensor Sensor F6
E 78
Failure or short, collector sensor Sensor F8
E 80
Failure or short, room sensor heating circuit 1. No assignment by REMKO
E 81
EEPROM error. The valid value has been replaced by the default value. Check parameter
values!
E 83
Failure or short, room sensor heating circuit 2. No assignment by REMKO
E 84
Fault humidity, sensor No assignment by REMKO
E 90
Address 0 and 1 on bus. Bus codes 0 and 1 may not be used simultaneously.
E 91
Bus code assigned. The set bus code is already being used by another device.
E 135
Failure or short, lower WW buffer sensor, multifunction sensor 2. No assignment by REMKO
E 136
Failure or short, heating appliance sensor 2, collector sensor 2, multifunction sensor
3. Sensor F13
E 137
Failure or short in collector sensor 1, multifunction sensor 4. Sensor F14
E 140
Failure or short in return line (cooling-mode control sensor) Sensor F17
E 200 - E 207
Communication heating appliance 1 to WE 7
E 220 - E 253
Communication BM 0 to BM 15
E 240
Communication Manager
E 241
Communication (individual) heating appliances
E 242
Communication mixer
E 243
Communication Solar
customer
service (info
51)
Notice that annual maintenance is needed
Heat-pump
fault (info 55)
Heat pump fault Flow monitor responded or an outdoor-module defect, but only if the
red indicator light also illuminates. If the red indicator light does not illuminate: check the
circulation pump or the flow. There's a possibility of air in the pump or heating circuit
Energy supply
company
switching
Information that the power company has begun an off-period. The heat pump and electric
heating are turned off. A boiler is turned on as needed.
30
Flashing code on outdoor module
In the event that the red control
lamp lights up on the indoor
module, then the fault is on
the outdoor module. Two LEDs
are visible after removing the
enclosure panel which light up
in green and red during normal
operation (see adjacent figure).
If the LEDs flash, then there is a
fault. Causes and measures for
their remedy can be taken from
the following table.
green LED
flashes 1 times
LEDs
red LED
Meaning
Remedial measures
flashes 1 times
Phase error: The supply cable to the outdoor
module or the connection between the
indoor and outdoor modules is not correct.
Check the electrical connection (swapped
phases)
Check connection cable
flashes 2 times
One of the connectors has been removed
from the PCB or has intermittent contact
Check all connectors on the PCB, check
high and low pressure sensors
flashes 3 times
Fault on PCB
Exchange PCB
flashes 1 times
Wiring error between indoor and outdoor
modules
Check connection cable for correct
polarity and proper contact
flashes 2 times
Data transfer error between indoor and
outdoor modules
Check if the connection cable has been
improperly extended or incorrectly
connected
flashes 1 times
Hot gas temperature in refrigerant circuit
too high or hot gas heating too low
Check refrigerant; check hot gas
temperature sensor; check expansion
valve
High pressure valve has tripped
Open any closed ball valves, check for
excess refrigerant
Low pressure cut-off switch has tripped
Open any closed ball valves, check for
excess refrigerant
No voltage on condenser
Check power supply to the condenser
flashes 3 times
Overheating protection tripped, excessive
liquid temperature in refrigerant circuit
Clean dirty heat exchanger on outdoor
module; rectify possible pneumatic short
circuit on the outdoor device.
flashes 4 times
Circuit breaker on condenser (overload)
has tripped, or no operating voltage at
the condenser
Open any closed spherical valves; check
supply voltage; exchange faulty control
panel
flashes 5 times
Fault in hot gas temperature sensor or fin
temperature sensor (cable breakage or
short circuit)
Check PCB connector for firm connection,
check functionality of the sensor
flashes 6 times
Temperature fault on inverter cooling
block
Rectify obstruction to flow in outdoor
module
flashes 7 times
Fault in power supply
Check and repair power supply
flashes 1 times
Fault on liquid line sensor (cable breakage Check PCB connector for firm connection,
or short circuit)
check functionality of the sensor
flashes 4 times
Temperature of liquid line too high / too
low
flashes 2 times
flashes 2 times
flashes 3 times
LEDs on outdoor module
flashes 4 times
Check refrigerant line or
refrigerant level
31
REMKO CMF - DUO
Overview of faults and their possible causes for the indoor unit charge pump
Indicator light does not illuminate
Green LED Red LED
Fault
The pump does not run
The pump does not run
Indicator light lights up permanently
Meaning
Remedial measures
A fuse or circuit breaker in the
installation has blown/tripped.
The residual current device (RCD)
or fault voltage circuit breaker was
tripped.
Replace the fuse/reset the circuit
breaker. Check whether there is a
power supply in the specified area.
Reset the RCD or circuit breaker.
Check whether there is a power
supply in the specified area.
The pump may be defective.
Replace the pump.
The pump was switched off.
Possible causes:
1. By the button .
2. External ON/OFF switch
switched off
3. Using the bus signal.
1. Switch on the pump using the
button.
2. Switch on the external ON/OFF
switch.
3. Switch on the pump using
the bus signal.
Check whether there is a power
supply in the specified area.
Power failure.
The pump was switched
Pump jammed and/or dirty.
off due to a fault.
Disassemble pump and clean
The pump may be defective.
Replace the pump.
The pump runs, but is
faulty.
Pump is faulty but still able to
continue running.
The pump was set to
STOP and is faulty.
Pump is faulty but still able to
continue running (set to STOP).
Try acknowledging the fault message
by briefly switching off the power
supply or by pressing the
,
or
button.
Air in the system.
Bleed the system
Delivery rate is too high.
Reduce the target value and if
AUTOADAPT or Constant pressure.
Reduce the target value and if
AUTOADAPT or Proportional pressure.
Increase supply pressure and/or check
the gas volume in the expansion
vessel (if present).
Adjust the pump setting by pressing
and holding the
button. After the
pump has been bled press the
and
buttons to switch back to normal
mode.
CAUTION: The pump must never be
allowed to run dry.
The system makes
noises.
Delivery pressure.
Supply pressure is too low.
The pump makes
noises.
32
Indicator light flashes
Air in the pump
Unit dimensions
Dimensions outdoor modules
1338
1050
Dimensions indoor module
 







33


















Outdoor
unit B


Refrigerant
pipe, 5/8"


 
Outdoor
unit B



Hot-water
return,
5/4”
AG
 


Hot-water
inlet, 5/4” AG




Filland drain valve







Outdoor
unit A




Refrigerant
pipe, 3/8"










Condensate-drain

socket

AD=22

Top: Socket 1”AG


for safety assembly



Pipe-outlet spacing 

















Refrigerant
pipe, 3/8"

Outdoor
unit A







Refrigerant pipe, 5/8"


 
 


Pipe-socket arrangement





 










 












 



 
 
REMKO CMF - DUO
Electrical system layout
(slow-acting)
(slow-acting)
Outdoor unit B
Platine WP-Manager
(Merlin I/O circuit board)
Outdoor unit A
(slowacting)
Relais K1 ...K7
Terminal block X1
Contactor
K6*)
Contactor
K8*)
Indicator light
Outdoor module A
Indicator light
Outdoor module B
Red indicator light
Outdoor-module A failure
Red indicator light
Outdoor-module B failure
Mode switch
Terminal block X2
Terminal block
X3
Heat pump manager
(control-and-display unit)
*) Electro heating (optional)
34
Connection diagram, terminal configuration
S1
S2
S3
L1
L2
L3
N
Outdoor-module B supply
CMF 320: e.g.:NYM 5x2.5mm2
Indoor-module supply
S1
S2
S3
E-heater supply
Flow monitor **)
or
jumper ***)
Circulation pump HK 2
Mixer circuit
br
blk
Switching valve, cooling
br
blk
blu
Circulation pump, cooling
F 15 Flow rate transmitter
F 14 Solar collector
F 13 Solid-fuel combustion vessel
F 12 Reference sensor, lower buffer storage
F 11 Inlet, heat pump
F 9 Outdoor temperature
F 8 T-collector (com. inlet)
F 6 Warm-water storage
F 5 Inlet HK2 (mixing circuit
Analogue remote control with room sensor
blu
white
X3
X3.1
X3.2
X3.3
X3.4
X3.5
X3.6
X3.7
X3.8
X3.9
X3.10
X3.11
X3.12
X3.13
X3.14
X3.15
X3.16
X3.17
X3.18
X3.19
A9
F 17 Return, heat pump
Terminal block X3
connection layout CMF 320 Duo
Charging pump, indoor
module
A12
Circulation pump, solar
or circulation or Solid-fuel
combustion vessel
A10 A10
blu
A3
Switching valve
Hot-water usage
A1 A2
Circulation pump HK 1
A4/A5 E1
3-way mixer HK2
Indoor unit
M
(4-way) switching valve
2. heat source
6,3A
slow-acting
There is an option for the boiler enabling to occur without voltage or
with 230 V (phase-bridged from X2.19)
with which a normally-closed switch or a normally-open switch can be employed.
Normally-closed switch
Normally-open switch
Terminal block X2
*)
**) Only in a set-up without hot water meters
***) Only in a set-up with hot water meters
enable
2. heat source *)
X2.1.A
X2.2.A
X2.3.A
X2.1.B
X2.2.B
X2.3.B
X2.4
X2.5
X2.6
X2.7
X2.8-N
X2.9
X2.10
X2.11-N
X2.12
X2.13
X2.14
X2.15
X2.16
X2.17
X2.18
X2.19-L1.1
X2.20-L1.1
X2.21-L1.1
X2.22
X2.23-N
X2.24
X2.25
X2.26-N
X2.27
X2.28
X2.29-N
X2.30
X2.31
X2.32-N
X2.33
X2.34
X2.35-N
X2.36
X2.37
X2.38-N
X2.39
X2.40
X2.41-N
X2.42
Inputs/outputs
Power enable/disable (230 V~)
e.g.:NYM 3x1.5mm2
(Merlin I/O circuit board)
X1.1
X1.2
X1.3
X1.4
X1.5
X1.6
X1.7
X1.8
X1.9
e.g.:NYM 5x2.5mm2
Terminal block X1
Observe the technical
requirements of the local
power company
Relay switch
e.g.:NYM 3x1.5mm2
Outdoor units
On-site
sub-distribution
Outdoor-module A supply
CMF 320: e.g.:NYM 5x2.5mm2
Outdoor unit A Outdoor unit B
L1
L2
L3
N
F17
(F15)
F14
F13
F12
F11
F9
F8
F6
F5
F3
F2
(F1)
35
REMKO CMF - DUO
Circuit diagrams
Mode switch
Hand-OFF-automatic
Platine WP-Manager
(Merlin I/O circuit board)
Power
plantDisable/
enable
Outdoor unit A
Green
indicator
light
Demand
Outdoor
unit B
Outdoor unit B
6,3 A slow-acting
Green
indicator
light
Demand
Outdoor
unit A
Circuit diagram WP01 - Duo
36
Circuit diagram (continued)
Load pump
Indoor unit
Special accessories
electro heating
Switching valve
2. heat source
Platine WP-Manager
(Merlin I/O circuit board)
OPEN CLOSED
Circuit diagram WP02- Duo
37
REMKO CMF - DUO
Circuit diagram (continued)
Circuit board WP manager
(Merlin I/O circuit board)
Flow monitor *)
or Jumper **)
*)only in a set-up without hot water meters
**)only in a set-up with hot water meters
Special accessories
electro heating
Circuit diagram WP03-Duo
38
Circuit diagram (continued)
switching
valve
Cooling
Pump
Cooling
MF4 outlet for
solar pump
or circulation pump or
solid fuel boiler
pump
Platine WP-Manager
(Merlin I/O circuit board)
Outdoor unit A
Red
indicator light
Outdoormodule A
failure
Outdoor unit B
Red
indicator light
Outdoormodule B
failure
Circuit diagram WP04 - Duo
39
REMKO CMF - DUO
Circuit diagram (continued)
6 kW switch
Power supply for electric booster-heating
400V/3~/50Hz
3 kW switch


Electrical
booster heat
3 x 2 kW
Circuit diagram WP05 - Duo
40
Circuit diagram (continued)
Gas-/Oil

Enable 2
Heat source
(potential-free normally open or
normally closed switch)
Outdoor unit A
Enable compressor
Enable Cooling
Outdoor unit B
Enable compressor
Enable Cooling
Circuit diagram WP06 - Duo
41
REMKO CMF - DUO
Circuit diagram (continued)
Pump
HK 1
Pump
HK 2
(mixer
circuit)
3-way
switching
valve
Warmwater
OPEN
CLOSED
Platine WP-Manager
(Merlin I/O circuit board)
3-way
mixer
HK 2
Circuit diagram WP07 - Duo
42
Circuit diagram (continued)
Platine WP-Manager
(Merlin I/O circuit board)
Outdoor unit A / Outdoor unit B
Fixed resistor
6.2 kOhm
Sensor terminal block
Undercooling temperature outdoor unit A
Liquid sensor, cooling circuit
Undercooling temperature outdoor unit B
Liquid sensor, cooling circuit
Circuit diagram WP08 - Duo
43
REMKO CMF - DUO
Terminal block/legend
Termi- Connection layout (supply)
nal
Termi- Connection layout (outputs) continuation
nal
X1.1
Power supply, indoor module - L
X2.31
Switching valve, cooling L" - black
X1.2
Power supply, indoor module - N
X2.32
Switching valve, cooling N - grey
X1.3
Power supply, indoor module - PE
X2.33
PE
X1.4
Power supply, E-heater - L1
(optional for CMF Series).
X2.34
Circulation pump, cooling - L
Circulation pump, cooling - N
X1.5
Power supply, E-heater - N
(optional for CMF Series).
X2.35
X2.36
Circulation pump - PE
Circulation- or solar pump - L
X1.6
Power supply, E-heater - PE
(optional for CMF Series).
X2.37
X2.38
Circulation- or solar pump - N
X1.7
Power supply, E-heater - L2
(optional for CMF Series).
X2.39
Circulation- or solar pump - PE
X1.8
Power supply, E-heater - L3
(optional for CMF Series).
X2.40
Charge pump, indoor module - L
X2.41
Charge pump, indoor module - N
X1.9
PE
X2.42
Charge pump, indoor module - PE
Termi- Connection layout (outputs)
nal
Termi- Connection layout (low-voltage sensor)
nal
X2.1
Control cable, outdoor- and indoor module - S1
X3.
Earth
X2.2
Control cable, outdoor- and indoor module - S2
X3.1
CAN-Bus +
X2.3
Control cable, outdoor- and indoor module - S3
X3.2
CAN-Bus -
X3.3
CAN-Bus L
X3.4
CAN-Bus H
X2.5
Enable 2. Heat generator (common contact,
optionally potential free or 230 V feed over the
bridge at X2.19)
Enable 2. Heat source (open)
X3.5
eBus - (nominal output in % above 0-10 V -signal)
X2.6
Enable 2. Heat source (closed)
X3.6
eBus + (nominal output in % above 0-10 V -signal)
X.2.7
Switching valve 2. Heat generator - OPEN
X3.7
F17 Return sensor (cooling-control sensor)
X2.8
Switching valve 2. Heat generator - N
X3.8
F15 sensor (option: flow-volume regulator)
X2.9
Switching valve 2. Heat generator - OFF
X3.9
F14 Solar-collector sensor (pt 1000)
X2.10
Mixer, heating circuit 2 - OPEN
X3.10
X211
Mixer, heating circuit 2 - N
X3.11
X2.12
Mixer, heating circuit 2 - CLOSED
X3.12
F13 Solid-fuel-boiler sensor F13 (pt 1000)
F12 Lower buffer storage
(reference sensor, solar or solid-fuel boiler)
F11 Inlet sensor, heat pump or heating-circuit 1
X2.13
Power plant enable/disable
X3.13
F9 External sensor
X2.14
Power plant enable/disable
X3.14
F8 Collector sensor, common inlet (heating-control sensor)
X2.15
Contactor K6-A1/L‘, 6 kW elec. booster heater
X3.15
F6 Warm-water-storage sensor
X2.16
Flow monitor
X3.16
F5 Inlet sensor, heating-circuit 2 (mixing circuit)
X2.17
X3.17
F3 (not connected)
X3.18
F2 (not connected)
X2.19
Flow monitor
Contactor K6 and K8-A2/N1.2, elec. booster
heater
Live phase - L'
X3.19
F1 (not connected)
X2.20
Live phase - L'
X3.20
Liquid-temperature sensor, outdoor unit A
X2.21
Live phase - L'
X3.21
Undercooling temperature, outdoor unit A
X2.22
Circulation pump, heating circuit 1 - L
X3.22
Liquid-temperature sensor, outdoor unit B
X2.23
Circulation pump, heating circuit 1 - N
X3.23
Undercooling temperature, outdoor unit B
X2.24
Circulation pump, heating circuit 1 - PE
X2.25
Circulation pump, heating circuit 2 - L
X2.26
Circulation pump, heating circuit 2 - N
X2.27
Circulation pump, heating circuit 2 - PE
X2.28
Switching valve, warm water L" - black
X2.29
Switching valve, warm water N - grey
X2.30
PE
X2.4
X2.18
44
NOTE
The connection terminals X1.4 through x1.9, as
well as X2.15 and X2.18 are available only when
the electric booster heater is installed.
Characteristic curves
Heat output CMF 320
Heat output at an inlet temperature of 35 °C
60
n-max
Heating output [kW]
50
40
Rated frequency 76/77 Hz
30
20
n-min
10
0
-15 -14 -13 -12 -11 -10 -9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20
9
10 11 12 13 14 15 16 17 18 19 20
Outdoor temperature [°C]
Diagramm Heizleistung W35_28kW
Performance number CMF 320
COP at an inlet temperature of 35 °C
7
6
5
COP [-]
4
3
2
1
0
-15 -14 -13 -12 -11 -10 -9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
Outdoor temperature [°C]
8
Diagramm COP W35_28kW
45
REMKO CMF - DUO
Characteristic curves
Heat output CMF 320
Heat output at an inlet temperature of 45 °C
50
45
n-max
40
Heating output [kW]
35
Rated frequency 76/77 Hz
30
25
20
n-min
15
10
5
0
-15 -14 -13 -12 -11 -10 -9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20
9
10 11 12 13 14 15 16 17 18 19 20
Outdoor temperature [°C]
Diagramm Heizleistung W45_28kW
Performance number CMF 320
COP at an inlet temperature of 45 °C
5
4
COP [-]
3
2
1
0
-15 -14 -13 -12 -11 -10 -9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
Outdoor temperature [°C]
Diagramm COP W45_28kW
46
8
Characteristic curves
Heat output CMF 320
Heat output at an inlet temperature of 55 °C
40
35
n-max
Heating output [kW]
30
25
Rated frequency 76/77 Hz
20
15
n-min
10
5
0
-15 -14 -13 -12 -11 -10 -9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20
Outdoor temperature [°C]
Diagramm Heizleistung W55_28kW
Performance number CMF 320
COP at an inlet temperature of 55 °C
4
COP [-]
3
2
1
0
-15 -14 -13 -12 -11 -10 -9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20
Outdoor temperature [°C]
Diagramm COP W55_28kW
47
REMKO CMF - DUO
Pump-characteristic curves, indoor module charging pump
Pump-characteristic curves CMF 320 Duo
H
(m)
Make : Grundfos
Type:
Magna 32-100
Medium to be pumped:
Heating water
Rated water flow: 4.4 m3/h
Rated Delivery hight:
6m
max delivery hight: 8m
Rated power consumption: 136 W
Rated power consumption min/max:10 - 180 W
max. current consumption:
1,23 A
10
9
8
7
6
1
2
5
3
4
4
3
2
1
0
0
P1
(W)
5
1
2
3
4
5
6
7
8
9
10
11
Q(m³/h)
160
120
80
40
0
Sound pressure level
Distance-dependent sound pressure level for the outdoor unit in relation to installation type, in accordance with the drawing
5m
1m
1m
5m
5m
1m
10m
10m
Distance-dependent sound pressure level
Heat pump
outdoor unit
CMF 320 Duo
Sound power level
according to ISO
9614-2
67,1 dB(A)
Installation type,
in accordance
with the drawing
1m
5m
10m
15m
In free field
56,1 dB(A) 42,1 dB(A) 36,1 dB(A) 32,6 dB(A)
In front of a wall
59,1 dB(A) 45,1 dB(A) 39,1 dB(A) 35,6 dB(A)
Should the outdoor modules be positioned next to one another, this will increase the sound-power level
specified in the table by 3 dB(A).
48
Overall sound-power level for one of the outdoor modules
Total sound-power level LP
Ambient noise
Excluded range
Output A-bew
Cursor: (A)Power=67.1 dB
Series of measurements acc. to DIN EN 12102:2008-09 and ISO 9614-2121
Middle frequency
(Hz)
25
31,50
40
50
63
80
100
125
160
LI [dBA]
(31,8)
-(35,6)
(34,6)
40,5
41,5
42,2
40,0
37,6
39,4
LWo [dBA]
(41,0)
-(44,8)
(43,8)
49,7
50,7
51,4
49,2
46,8
48,6
FPI [dB]
-(7,9)
-(1,4)
-(5,5)
-9,2
-3,9
0,6
3,3
6,0
6,7
Middle frequency
(Hz)
200
250
315
400
500
630
800
1000
1250
LI [dBA]
41,8
50,8
42,6
46,6
47,1
47,9
47,7
46,5
46,1
LWo [dBA]
51,0
60,0
51,8
55,8
56,3
57,1
56,9
55,7
55,3
FPI [dB]
8,7
7,7
9,3
7,6
7,6
6,5
6,3
7,2
7,5
Middle frequency
(Hz)
1600
2000
2500
3150
4000
5000
6300
8000
10000
LI [dBA]
45,9
45,4
40,9
37,1
32,4
33,3
25,1
(24,9)
(19,9)
LWo [dBA]
55,1
54,6
50,1
46,3
41,6
42,5
34,3
(34,1)
(29,1)
FPI [dB]
7,3
7,1
6,6
8,4
10,3
7,3
11,9
(7,2)
(6,4)
Determination of sound power conforms to accuracy class 2, the standard deviation of the o. a. A-valued sound-power levels
amounts to 1.5 dB.
LWo: Sound power level radiated by the outdoor unit
FPI: Correction value with regard to the environment
LI: Sound intensity
49
REMKO CMF - DUO
Annual performance number for CMF 320 Duo
Mode: single energy source, parallel with a switch-over point of -5°C
Climatic region: -10°C
Existing buildings with hot-water heating (share 18%)
Type
CMF 320
Type
CMF 320
Annual performance number with inlet/outlet tem- Annual performance number with inlet/outlet temperature differential: 7K and inlet temperature... perature differential: 10K and inlet temperature...
COP
A-7/W35
2,5
A2/W35 A10/W35
30°C
35°C
40°C
3,9
4,4
4,15
4,03
3,82
New construction with hot-water heating (share 18%)
A2/W35
3,9
50°C
3,74
55°C
3,60
Annual performance number with inlet/outlet tem- Annual performance number with inlet/outlet temperature differential: 7K and inlet temperature... perature differential: 10K and inlet temperature...
COP
A-7/W35
2,5
45°C
3,87
A10/W35
4,4
30°C
4,07
35°C
3,95
40°C
3,91
45°C
3,78
50°C
3,64
55°C
3,50
Climatic region: -12°C
Existing buildings with hot-water heating (share 18%)
Type
CMF 320
Type
CMF 320
Annual performance number with inlet/outlet tem- Annual performance number with inlet/outlet temperature differential: 7K and inlet temperature... perature differential: 10K and inlet temperature...
COP
A-7/W35
2,5
A2/W35 A10/W35
30°C
35°C
40°C
3,9
4,4
4,07
3,95
3,82
New construction with hot-water heating (share 18%)
COP
A-7/W35
2,5
A2/W35
3,9
A10/W35
4,4
45°C
3,79
50°C
3,68
55°C
3,53
Annual performance number with inlet/outlet tem- Annual performance number with inlet/outlet temperature differential: 7K and inlet temperature... perature differential: 10K and inlet temperature...
30°C
3,98
35°C
3,86
40°C
3,73
45°C
3,69
50°C
3,56
55°C
3,43
Climatic region: -14°C
Existing buildings with hot-water heating (share 18%)
Type
CMF 320
Type
CMF 320
Annual performance number with inlet/outlet tem- Annual performance number with inlet/outlet temperature differential: 7K and inlet temperature... perature differential: 10K and inlet temperature...
COP
A-7/W35
2,5
A2/W35 A10/W35
30°C
35°C
40°C
3,9
4,4
4,00
3,89
3,77
New construction with hot-water heating (share 18%)
A2/W35
3,9
50°C
3,61
55°C
3,49
Annual performance number with inlet/outlet tem- Annual performance number with inlet/outlet temperature differential: 7K and inlet temperature... perature differential: 10K and inlet temperature...
COP
A-7/W35
2,5
45°C
3,74
A10/W35
4,4
30°C
3,92
35°C
3,80
40°C
3,68
45°C
3,64
50°C
3,52
55°C
3,39
Climatic region: -16°C
Existing buildings with hot-water heating (share 18%)
Type
CMF 320
Type
CMF 320
Annual performance number with inlet/outlet tem- Annual performance number with inlet/outlet temperature differential: 7K and inlet temperature... perature differential: 10K and inlet temperature...
COP
A-7/W35
2,5
A2/W35 A10/W35
30°C
35°C
40°C
3,9
4,4
3,89
3,78
3,67
New construction with hot-water heating (share 18%)
A2/W35
3,9
50°C
3,52
A10/W35
4,4
30°C
3,79
35°C
3,67
40°C
3,56
45°C
3,52
50°C
3,41
Note: A differential of 7K has a standard floor-heating layout, a differential of 10K is typical for a radiator system
Additional key data: a heating-threshold temperature of 15°C for old construction and 12°C in new construction, a differential at the condenser
(test-bench measurements: 5K)
50
55°C
3,39
Annual performance number with inlet/outlet tem- Annual performance number with inlet/outlet temperature differential: 7K and inlet temperature... perature differential: 10K and inlet temperature...
COP
A-7/W35
2,5
45°C
3,64
55°C
3,28
Annual performance number for CMF 320 Duo
Mode: bivalent-parallel with a switch-over point of -3°C
Climatic region: -10°C
Existing buildings with hot-water heating (share 18%)
Type
CMF 320
Type
CMF 320
Annual performance number with inlet/outlet tem- Annual performance number with inlet/outlet temperature differential: 7K and inlet temperature... perature differential: 10K and inlet temperature...
COP
A-7/W35
2,5
A2/W35 A10/W35
30°C
35°C
40°C
3,9
4,4
4,44
4,30
4,16
New construction with hot-water heating (share 18%)
A2/W35
3,9
50°C
3,96
55°C
3,80
Annual performance number with inlet/outlet tem- Annual performance number with inlet/outlet temperature differential: 7K and inlet temperature... perature differential: 10K and inlet temperature...
COP
A-7/W35
2,5
45°C
4,11
A10/W35
4,4
30°C
4,34
35°C
4,20
40°C
4,05
45°C
4,00
50°C
3,85
55°C
3,69
Climatic region: -12°C
Existing buildings with hot-water heating (share 18%)
Type
CMF 320
Type
CMF 320
Annual performance number with inlet/outlet tem- Annual performance number with inlet/outlet temperature differential: 7K and inlet temperature... perature differential: 10K and inlet temperature...
COP
A-7/W35
2,5
A2/W35 A10/W35
30°C
35°C
40°C
3,9
4,4
4,34
4,20
4,06
New construction with hot-water heating (share 18%)
COP
A-7/W35
2,5
A2/W35
3,9
A10/W35
4,4
45°C
4,01
50°C
3,87
55°C
3,72
Annual performance number with inlet/outlet tem- Annual performance number with inlet/outlet temperature differential: 7K and inlet temperature... perature differential: 10K and inlet temperature...
30°C
4,24
35°C
4,10
40°C
3,95
45°C
3,91
50°C
3,76
55°C
3,61
Climatic region: -14°C
Existing buildings with hot-water heating (share 18%)
Type
CMF 320
Type
CMF 320
Annual performance number with inlet/outlet tem- Annual performance number with inlet/outlet temperature differential: 7K and inlet temperature... perature differential: 10K and inlet temperature...
COP
A-7/W35
2,5
A2/W35 A10/W35
30°C
35°C
40°C
3,9
4,4
4,27
4,13
4,00
New construction with hot-water heating (share 18%)
A2/W35
3,9
50°C
3,72
55°C
3,68
Annual performance number with inlet/outlet tem- Annual performance number with inlet/outlet temperature differential: 7K and inlet temperature... perature differential: 10K and inlet temperature...
COP
A-7/W35
2,5
45°C
3,96
A10/W35
4,4
30°C
4,17
35°C
4,03
40°C
3,89
45°C
3,85
50°C
3,71
55°C
3,56
Climatic region: -16°C
Existing buildings with hot-water heating (share 18%)
Type
CMF 320
Type
CMF 320
Annual performance number with inlet/outlet tem- Annual performance number with inlet/outlet temperature differential: 7K and inlet temperature... perature differential: 10K and inlet temperature...
COP
A-7/W35
2,5
A2/W35 A10/W35
30°C
35°C
40°C
3,9
4,4
4,14
4,01
3,88
New construction with hot-water heating (share 18%)
A2/W35
3,9
50°C
3,71
55°C
3,57
Annual performance number with inlet/outlet tem- Annual performance number with inlet/outlet temperature differential: 7K and inlet temperature... perature differential: 10K and inlet temperature...
COP
A-7/W35
2,5
45°C
3,84
A10/W35
4,4
30°C
4,02
35°C
3,89
40°C
3,76
45°C
3,72
50°C
3,58
55°C
3,44
Note: A differential of 7K has a standard floor-heating layout, a differential of 10K is typical for a radiator system
Additional key data: a heating-threshold temperature of 15°C for old construction and 12°C in new construction, a differential at the condenser
(test-bench measurements: 5K)
51
REMKO CMF - DUO
Technical data
Series
CMF 320 Duo
Function
Heating or Cooling
Inverter technology
REMKO SuperTec
System
Split-Air/Water
Heat pump manager
Multitalent or Multitalent Plus
Storage tank for hydraulic decoupling of volumetric flows
Electric booster heating / rated output
on site
kW
Water heating
optional
optional with separate storage technology
Heating output min / max
kW
10,0 - 32,0
Heating output / compressor frequency / COP
1)
for A10/W35
kW / Hz / -
30,6 / 76 / 4,7
Heating output / compressor frequency / COP
1)
for A7/W35
kW / Hz / -
26,0 / 77 / 4,4
Heating output / compressor frequency / COP 1) for A2/W35
kW / Hz / -
19,2 / 76 / 3,2
Heating output / compressor frequency / COP
for A2/W35
kW / Hz / -
16,0 / 51 / 3,9
Heating output / compressor frequency / COP 1) for A7/W35
kW / Hz / -
16,4 / 77 / 2,6
Heating output / compressor frequency / COP
1)
kW / Hz / -
10,9 / 77 / 1,7
Heating output / compressor frequency / COP 1) for A7/W45
kW / Hz / -
26,6 / 76 / 3,4
Heating output / compressor frequency / COP
1)
for A15/W35
for A2/W45
kW / Hz / -
18,6 / 76 / 2,5
Heating output / compressor frequency / COP 1) for A7/W45
kW / Hz / -
14,8 / 77 / 1,9
Heating output / compressor frequency / COP
1)
for A15/W45
kW / Hz / -
9,2 / 77 / 1,2
Heating output / compressor frequency / COP 1) for A20/W55
kW / Hz / -
12,9 / 61 / 3,4
Heating output / compressor frequency / COP 1) for A7/W55
kW / Hz / -
18,8 / 61 / 2,5
Heating output / compressor frequency / COP
1)
kW / Hz / -
6,1 / 77 / 1,3
Cooling output / compressor frequency / EER 2) for A35/W7
kW / Hz / -
24,2 / 74 / 3,1
Cooling output / compressor frequency / EER 2) for A27/W7
1)
for A7/W55
kW / Hz / -
24,0 / 69 / 3,7
Service limits, heating
°C
-18 to +34
Service limits, cooling
°C
+15 to +46
Supply-temperature, heating water
°C
up to +60
-- / kg
R 410A2) / 2 x 5,0
g/m
60
Refrigerant / pre-charge quantity
Refrigerant / pre-charge quantity for up to 30 m length of ordinary pipe
Max. permissible single refrigerant pipe length
m
each with 75
V / Hz
400/3~N PE / 50
A
8
Rated current consumption (for A7/W35)
A
10,6
Rated power consumption (for A7/W35)
kW
6,9
A
each with 3 x 16
m³/h
4,4
Power supply
Starting current
Fuse protection (outdoor unit), characteristic C
Rated water flow (according to EN 14511, at ∆t 5 K)
Pressure-loss at the condenser at rated flow
Airflow volume outdoor module
Max. operating pressure, water
kPa
5,4
m³/h
7200
bar
3,0
Hydraulic connection, supply / return
Inches
5/4“ AG
Sound-pressure level, LpA 1m (outdoor unit)
dB(A)
56/423)
Sound-power level in accordance with DIN EN 12102:2008-09 and ISO 9614-2
dB(A)
67,1
Dimensions, indoor unit (height/width/depth)
mm
800 / 550 / 550
Dimensions, outdoor unit (height/width/depth)
mm
1338 / 1050 / 330
Protection class outdoor unit
IP 24
Weight indoor module
kg
52
Weight outdoor module
kg
126
1) COP=coefficient of performance or performance number according to EN 14511
2) Contains greenhouse gas according to Kyoto protocol
3) Clear-field distance: 5m
52
Exploded view outdoor module
6
5
2
7
10
3
11
14
12
9
1
8
4
13
We reserve the right to modify the
dimensions and constructional design as
part of the ongoing technical-development process.
Spare parts list
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Designation
Compressor
Laminated heat-exchanger
Four-way switching valve
Shut-off valves
Fan
Cover panel
Side panel, left
Front panel
Grille, front
Side panel, right
Side panel, right front
Cover, rear
Cover, front
Recessed grip
Spare parts (not illustrated)
Grille, rear
Sensor
Control board
Mains filter board
Power electronics
EDP-number
1120082
1120083
1120084
1120085
1120086
1120087
1120088
1120089
1120090
1120091
1120200
1120201
1120202
1120203
1120204
available only by request with the device no.
available only by request with the device no.
available only by request with the device no.
available only by request with the device no.
When ordering spare parts, please state the computerised part no., device number and device type (see name plate)!
53
REMKO CMF - DUO
Device display for indoor module CMF 320
19
18
17
14
20
2
22
3
21
16
1
1
1
7
14
13 15
4
26
10
9
30
23
28
5
24
14
8
12
6
25 27 29 31
We reserve the right to modify the dimensions and constructional design as part of the ongoing technical-development process.
54
Spare parts list
No.
1
2
3
4
5
6
6
7
8
9
10
10
12
13
15
23
23
24
25
26
27
28
29
30
31
Designation
Housing
Front panel
Door with hinge
Housing for controls
Controls, complete
Control module
Control module (in the form of a hot water meter)
Heat exchanger (condenser) with insulation
Pipe assembly, complete with insulation
Circulation pump
Flow monitor
Flow meter (in the form of a hot water meter)
Fill/drain valve
Bleeder 1/4“
Brass plug, 2"
Relay board, WP-Manager (Merlin I/O-Platine)
Relay board, WP-Manager (in the form of a hot water meter)
Control board (Interface PAC-IF010B-E)
Mount
Sensor terminal block
Red indicator light
Green indicator light
Mode switch
Relays (finder)
Retrofitting kit electric heating
Spare parts (not illustrated)
Liquid sensor, cooling circuit
Socket for service module
Blind plug 1”
Electric booster-heating, 2", max. 9 kW
Article ID
1120209
1120006
1120005
1120210
1120150
1120211
1120190
1120212
1120213
1120214
1120164
1120193
1120028
NEU
1120155
1120030
1120194
250001
1120007
1120215
1105363
1105514
1120157
1120095
1120147
1120055
1120032
1120048
1120160
Parts and fittings, set
No.
16
17
18
19
20
14
21
22
Designation
Fittings set, complete
Dirt trap 5/4”
Ball valve, 5/4" red
Ball valve, 5/4" blue
Contact sensor
Immersion sensor
Safety assembly
External sensor
Article ID
260006
1120217
1120218
1120219
260100
260090
1120010
1120014
When ordering spare parts, please state the computerised part no., device number and device type (see identification plate)!
55
REMKO CMF - DUO
EC – Declaration of Conformity
We do hereby declare that the devices named below, produced and sold by us, satisfy the relevant basic
requirements of the EC guidelines, the EC safety standards and other product-specific EC standards.
Important Information:
In the event that the equipment delivered to the work site is not used, installed or maintained as intended, or is
modified without authorization, this declaration loses its legal validity.
Name of Manufacturer:
REMKO GmbH & Co. KG
Air conditioning and heating technology
Im Seelenkamp 12
D - 32791 Lage
Equipment (machinery) - Implementation:
Inverter heat pump with refrigerant R410A
Series / Designation:
Series / Class Number:
CMF 320 Duo
992.......... Applicable regulations :
(EC-Directive)
2006/42/EC
2006/95/EC 2004/108/EC 97/23/EC and 993..........
Machine directive
Low-voltage directive
Electro-magnetic fields
Pressure Equipment Directive
Applicable Standards:
EN 378-1: 2008
Cooling-devices and heat-pump safety-
(Harmonized EN)
and environment-related requirements
EN 378-2: 2008
EN 378-3: 2008
EN 378-4: 2008
EN 50366: 2003
Electrical devices for household use and
similar purposes - electromagnetic fields
EN 55014-1: 2010-02 Electromagnetic compatibility - requirements for household appliances, electric tools and similar electrical devices (earlier: VDE 0875)
EN 55014-2: 1997 /
Safety of electrical devices for house
A1: 2001 (Category IV) hold use and similar purposes (earlier: VDE 0700)
EN 60335-1: 2002 /
A11: 2004 / A1: 2004 EN 60335-2-40: 2003 / A11: 2004 /
A12: 2005 / A1: 2006
EN 61000-3-2: 2006 Electromagnetic compatibility
(EMV, earlier: VDE 0838)
EN 61000-3-3: 1995 /
REMKO GmbH & Co. KG
A1: 2001 / A2: 2005
Lage, 21. July 2010
..........................................Signature Product Manager
56
General terms
Defrost
Expansion valve
Seasonal performance factor
At outdoor temperatures below
5°C it is possible that ice may form
on the evaporators of air/water
heat pumps. The removal of this
ice is referred to as defrosting and
is undertaken by supplying heat,
either regularly or as requirements
dictate. Air/water heat pumps with
circuit reversal are distinguished by
their requirements-based, quick and
energy-efficient defrosting system.
Heat pump component for
lowering the condensing pressure
on the vapour tension. In addition,
the expansion valve regulates the
quantity of injected refrigerant in
relation to the evaporator load.
The seasonal performance factor
relates to the ratio of heat content
delivered by the heat pump system
to the supplied electrical energy in
one year. It may not be compared
to the performance number.
The seasonal performance factor
expresses the reciprocal of the
annual power input factor.
Bivalent mode
The heat pump provides the
entire heating energy down
to a predetermined outdoor
temperature (e.g. 0°C). If the
temperature drops below this value,
the heat pump switches off and the
secondary heating appliance takes
over the heating, e.g. a heating
boiler.
Seal inspection
System operators are obliged to
ensure the prevention of refrigerant
leakage in accordance with the
directive on substances that deplete
the ozone layer (EC 2037/2000)
and the Regulation on Certain
Fluorinated Greenhouse Gases
(EC 842/2006). In addition, a
minimum of one annual service
and inspection must be carried
out, as well as a sealing test
for refrigerating plants with a
refrigerant filling weight over 3 kg.
Support
The German Reconstruction
Loan Corporation supports
ecologically-sound construction
and modernisation of domestic
buildings for private individuals.
This includes heat pumps which
can be supported in the form of
loans. The German Federal Office
of Economics and Export Control
(BAFA) subsidises the installation of
effective heat pumps (please refer
to: www.kfw.de and www.bafa.de).
Certain energy supply companies
offer special tariffs for the operation
of heat pumps.
The annual power input factor
indicates the power input (e.g.
electrical energy) required in
order to achieve a certain benefit
(e.g. heating energy). The annual
power input factor includes the
energy required for auxiliary
drives. Calculation of the annual
power input factor is undertaken
according to VDI – Directive 4650.
Limit temperature / bivalence
point
Refrigerating capacity
Outdoor temperature where the
secondary heating appliance cuts in
under bivalent operation.
Heat flux extracted from the
environment by the evaporator (air,
water or soil).
Heating output
Refrigerant
Flow of heat emitted from the
liquefier to the environment. The
heating output is the sum of the
electrical power consumed by
the condenser and the heat flux
obtained from the environment.
The working medium used in a
refrigerant plant, e.g. heat pump,
is referred to as the refrigerant.
The refrigerant is a liquid which
is used for thermal transfer in a
refrigeration plant and which is
able to absorb heat by changing
its state at low temperatures and
low pressures. A further change of
state at higher temperatures and
higher pressure serves to dissipate
this heat.
Inverter
Energy supply company
switching
Annual power input factor
power regulator which serves to
match the speed of the compressor
motor and the speed of the
evaporator fans to the heating
requirement.
57
REMKO CMF - DUO
Compressor (condenser)
Unit designed for the mechanical
conveyance and compression of
gasses. Compression serves to
significantly increase the pressure
and temperature of the medium.
Coefficient of performance
The current ratio of thermal output
produced by the heat pump to
the consumed electrical power is
referred to as the coefficient of
performance, as measured under
standardised boundary conditions
according to EN 255 / EN 14511.
A coefficient of performance of 4
means that a usable thermal output
amounting to 4-times the electrical
power consumption is available.
Single energy-source mode
The heat pump covers a large
proportion of the required thermal
output. On a few days per year an
electrical heating coil supplements
the heat pump under extremely low
outdoor temperatures.
Dimensioning of the heat pump for
air/water heat pumps is generally
based on a limit temperature (also
known as balance point) of approx.
-5 °C.
Monovalent mode
In this mode, the heat pump is
the sole heating appliance in the
building all year round. Monovalent
mode is primarily used in
combination with brine/water and
water/water heat pumps.
Storage tank
The installation of a hotwater storage tank is generally
recommended in order to extend
the running time of the heat pump
58
under low heat requirements. A
storage tank is required for air/
water heat pumps in order to
bridge off-periods.
plant which liquefies a working
medium in order to transmit heat
to its environment (e.g. the heating
system).
Noise
Regulations and guidelines
Noise is transmitted in media such
as air or water. Essentially there are
two types of noise, airborne sound
and solid-borne sound. Airborne
sound is transmitted entirely via the
air. Solid-borne sound is transmitted
in solid materials or liquids and is
only partially radiated as airborne
sound. The audible range of sound
lies between 20 and 20,000 Hz.
The erection, installation and
commissioning of heat pumps
has to be undertaken by qualified
specialist engineers. In doing so,
various standards and directives are
to be observed.
Sound pressure level
The sound pressure level is a
comparable characteristic quantity
for the radiated acoustic output
of a machine, for example, a heat
pump. The noise emission level
at certain distances and acoustic
environments can be measured.
The standard is based on a sound
pressure level given as a nominal
noise level.
Split AC unit
Design where one part of the
device is positioned outdoors and
the other inside the building. Both
units are connected to each other
by a refrigerant pipe.
Heat requirement assessment
A precise dimensioning of the
system must be carried out for
heat pump systems in order to
maximise efficiency. Calculation of
the heat requirement is undertaken
according to national standards.
However, approximate
requirements can be determined
based on the W/m² tables
multiplied by living space to be
heated. The result of this is the
overall heat requirement, which
includes the transmission heat
requirement and the infiltration
heat loss.
Heat pump system
A heat pump system consists of
a heat pump and a heat source
system. For brine and water/water
heat pumps, the heat source system
must be made available separately.
Evaporator
Heat exchanger on a refrigerant
plant which uses the evaporation
of a working medium in order to
extract heat from its environment
at low temperatures (e.g. the
outdoor air).
Heat source
Condenser
Liquid or gas medium (e.g. water,
brine or
air), in which heat is transported.
Heat exchanger on a refrigerant
Medium from which the heat pump
derives heat, in other words, soil,
air and water.
Heat carrier
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Make use of our experience and advice
Consulting
Thanks to intensive training,
our consultants are always
completely up-to-date in terms
of technical knowledge. This has
given us the reputation of being
more than just an excellent,
reliable supplier:
REMKO, a partner
helping you find solutions to
your problems.
Distribution
REMKO offers not just a well
established sales network both
nationally and internationally, but
also has exceptionally highlyqualified sales specialists.
REMKO field staff are more than
just sales representatives: above
all, they must act as advisers to
our customers in air conditioning
and heating technology.
Customer Service
precisely and reliably. However,
REMKO GmbH & Co. KG
Air conditioning and heating technology
Im Seelenkamp 12 Postfach 1827 Telephone
Telefax
E-mail
Website
D-32791 Lage
D-32777 Lage
+49 5232 606-0
+49 5232 606-260
[email protected]
www.remko.de
in the event of a fault, REMKO
customer service is quickly at
the scene. Our comprehensive
network of experienced dealers
always guarantees quick and
reliable service.
We reserve the right to make technical changes, and provide no guarantee as to the accuracy of this data!
Our equipment operates
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