REMKO KNGcooling module User manual

Installation instructions
Read the instructions prior to performing any task!
REMKO cooling module
Cooling module for the WSP heat pump range
0261-2020-03 Edition 1, en_GB

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

Table of contents
1 Safety and usage instructions............................................................................................................. 4
1.1 General safety notes....................................................................................................................... 4
1.2 Identification of notes...................................................................................................................... 4
1.3 Personnel qualifications.................................................................................................................. 4
1.4 Dangers of failure to observe the safety notes................................................................................ 4
1.5 Safety-conscious working............................................................................................................... 4
1.6 Safety instructions for the operator................................................................................................. 5
1.7 Safety notes for installation and inspection tasks........................................................................... 5
1.8 Unauthorised modification and changes......................................................................................... 5
1.9 Intended use................................................................................................................................... 5
1.10 Safety-conscious working............................................................................................................. 6
1.11 Warranty........................................................................................................................................ 6
1.12 Transportation and packaging....................................................................................................... 6
1.13 Environmental protection and recycling........................................................................................ 6
2 Technical data........................................................................................................................................ 7
2.1 Unit data.......................................................................................................................................... 7
2.2 Pump characteristic curves............................................................................................................. 9
2.3 Unit dimensions............................................................................................................................. 10
3 Unit description................................................................................................................................... 11
4 Assembly............................................................................................................................................. 12
5 Installation........................................................................................................................................... 14
5.1 Hydraulic connection..................................................................................................................... 14
5.2 Electrical wiring............................................................................................................................. 16
6 Operating the controller..................................................................................................................... 17
7 Before commissioning....................................................................................................................... 18
8 Commissioning................................................................................................................................... 19
9 Care and maintenance........................................................................................................................ 19
10 Temporary shutdown.......................................................................................................................... 20
11 General view of unit and spare parts................................................................................................ 21
12 Index..................................................................................................................................................... 22
3

1 Safety and
usage instructions
1.1 General safety notes
Carefully read the operating manual before com-
missioning the units for the first time. It contains
useful tips and notes such as hazard warnings to
prevent personal injury and material damage.
Failure to follow the directions in this manual not
only presents a danger to people, the environment
and the system itself, but will void any claims for
liability.
Keep this operating manual and the refrigerant
data sheet near to the units.
1.2 Identification of notes
This section provides an overview of all important
safety aspects for proper protection of people and
safe and fault-free operation.The instructions and
safety notes contained within this manual must be
observed in order to prevent accidents, personal
injury and material damage.
Notes attached directly to the units must be
observed in their entirety and be kept in a fully
legible condition.
Safety notes in this manual are indicated by sym-
bols. Safety notes are introduced with signal words
which help to highlight the magnitude of the danger
in question.
DANGER!
Contact with live parts poses an immediate
danger of death due to electric shock. Damage
to the insulation or individual components may
pose a danger of death.
DANGER!
This combination of symbol and signal word
warns of a situation in which there is immediate
danger, which if not avoided may be fatal or
cause serious injury.
WARNING!
This combination of symbol and signal word
warns of a potentially hazardous situation,
which if not avoided may be fatal or cause
serious injury.
CAUTION!
This combination of symbol and signal word
warns of a potentially hazardous situation,
which if not avoided may cause injury or mate-
rial and environmental damage.
NOTICE!
This combination of symbol and signal word
warns of a potentially hazardous situation,
which if not avoided may cause material and
environmental damage.
This symbol highlights useful tips and recom-
mendations as well as information for efficient
and fault-free operation.
1.3 Personnel qualifications
Personnel responsible for commissioning, opera-
tion, maintenance, inspection and installation must
be able to demonstrate that they hold a qualifica-
tion which proves their ability to undertake the
work.
1.4 Dangers of failure to observe
the safety notes
Failure to observe the safety notes may pose a risk
to people, the environment and the units. Failure to
observe the safety notes may void any claims for
damages.
In particular, failure to observe the safety notes
may pose the following risks:
nThe failure of important unit functions.
nThe failure of prescribed methods of mainte-
nance and repair.
nDanger to people on account of electrical and
mechanical effects.
1.5 Safety-conscious working
The safety notes contained in this manual, the
existing national regulations concerning accident
prevention as well as any internal company
working, operating and safety regulations must be
observed.
REMKO cooling module
4

1.6 Safety instructions for the oper-
ator
The operational safety of the units and compo-
nents is only assured providing they are used as
intended and in a fully assembled state.
nThe units and components may only be set up,
installed and maintained by qualified per-
sonnel.
nThe existing regulations concerning accident
prevention must be adhered to.
nDo not operate units or components with
obvious defects or signs of damage.
nContact with equipment parts or components
can lead to burns or injury.
nEnsure that electrical energy does not pose a
risk.
nRegulations of the VDE and the local energy
supply company must be adhered to.
NOTICE!
Material damage due to mineral oils!
Mineral oil products permanently damage
EPDM seal elements; the sealing properties
may therefore be lost. We do not take responsi-
bility or provide warranty replacements for
damage caused by seals that are damaged in
this way.
–It is essential that you prevent EPDM from
coming into contact with mineral oil sub-
stances.
–Use a lubricant that is free of mineral oil and
has a silicone or polyalkylene basis, such
as Unisilkon L250L and Syntheso Glep 1
made by Klüber, or a silicon spray.
1.7 Safety notes for installation and
inspection tasks
nThe operator must ensure that all inspection
and installation work is carried out by author-
ised and qualified personnel who have thor-
oughly read the operating manual.
nAppropriate hazard prevention measures must
be taken to prevent risks to people when per-
forming installation, repair, maintenance or
cleaning work on the units.
nThe setup, connection and operation of the
units and its components must be undertaken
in accordance with the usage and operating
conditions stipulated in this manual and comply
with all applicable regional regulations.
nRegional regulations and laws as well as the
Water Ecology Act (WHG) must be observed.
nThe electrical power supply should be adapted
to the requirements of the units.
nThe units and components must be kept at an
adequate distance from flammable, explosive,
combustible, abrasive and dirty areas or
atmospheres.
nSafety devices may not be modified or
bypassed.
1.8 Unauthorised modification and
changes
The operational safety of the fresh water module
that was delivered is guaranteed only with
intended use in accordance with section 1.8 of the
operating instructions. Under no circumstances
should the threshold values specified in the data-
sheet be exceeded.
Modifications or changes to units and components
are not permitted and may cause malfunctions.
Safety devices may not be modified or bypassed.
Original replacement parts and accessories
authorised by the manufacturer ensure safety. The
use of other parts may invalidate liability for
resulting consequences.
1.9 Intended use
Depending on its type and design, the cooling
module as an accessory is only suitable for the
intended use on REMKO WSP heat pumps.
Any different or additional use is a non-intended
use. The manufacturer/supplier assumes no lia-
bility for damages arising from non-intended use.
The user bears the sole risk in such cases.
Intended use also includes working in accordance
with the operating and installation instructions and
complying with the maintenance requirements.
The threshold values specified in the technical
data must not be exceeded.
5

1.10 Safety-conscious working
The safety notes contained in this manual, the
existing national regulations concerning accident
prevention as well as any internal company
working, operating and safety regulations must be
observed.
1.11 Warranty
For warranty claims to be considered, it is essential
that the ordering party or its representative com-
plete and return the "certificate of warranty" to
REMKO GmbH & Co. KG at the time when the
units are purchased and commissioned.
The warranty conditions are detailed in the "Gen-
eral business and delivery conditions". Further-
more, only the parties to a contract can conclude
special agreements beyond these conditions. In
this case, contact your contractual partner in the
first instance.
1.12 Transportation and
packaging
The units are shipped in sturdy transport pack-
aging or within the heat pump housing. Immedi-
ately check the units on delivery and make a note
of any damage or missing parts on the delivery
note. Inform the forwarding agent and contractual
partner. Claims under guarantee made at a later
date will not be accepted.
WARNING!
Plastic films and bags etc. are dangerous
toys for children!
Why:
- Leave packaging material are not around.
- Packaging material may not be accessible to
children!
1.13 Environmental protection and
recycling
Disposing of packaging
All products are packed for transport in environ-
mentally friendly materials. Make a valuable contri-
bution to reducing waste and sustaining raw mate-
rials. Only dispose of packaging at approved
collection points.
Disposing of the units and their components
For the manufacture of the units and components,
only recyclable materials have been used. Help
protect the environment by ensuring that the units
or components (for example batteries) are not dis-
posed of in household waste, but only in accord-
ance with local regulations and in an environmen-
tally safe manner, e.g. using authorised disposal
and recycling specialists or council collection
points.
REMKO cooling module
6

2 Technical data
2.1 Unit data
Unit type Cooling mode
System Brine/water,
or water/water
Medium flow rate water (according to EN 14511, at ∆t 5 K) m3/h 0.95
Min./max. operating temperature °C 7/95
Max. operating pressure bar 3
Power supply V/Ph/Hz 230/1~/50
Brine-side pressure loss kPa/bar 140/0.14
Heating side pressure loss kPa/bar 140/0.14
WSP 80/110 connections Inches 1", flat-sealing
WSP 140/180 connections Inches 1 1/4", flat-sealing
Cooling mode dimensions
Height mm 450
Width mm 650
Depth mm 150
Technical data for 3-way changeover valve
Cvs value (pressure loss 1 bar) m3/h 7.5
Rated pressure bar 10
Switching time s 8
Medium connectors Inches 1 1/4"
Electrical connection V/Ph/Hz 230/1~N / 50
Power consumption W 5 (4.8 VA max.)
Voltage resistance of the auxiliary contacts A/V 1/250
Permissible environmental temperatures °C 0-55
Min./max. hot water temperatures °C 0-95
Rated pressure gauge DN 25
EDP no. 260072
We reserve the right to modify the dimensions and design as part of the ongoing technical development
process.
7

Cooling capacities of the WSP 80/WSP 110 heat pumps
Inlet temperat.
WSP [°C]
Outlet temperat.
WSP [°C]
Air volume flow
WSP [m3/h]
Brine circuit
temperature [°C]
Cooling capacity
[kW]
15 7,7 0,9 0 8,7
23 10,0 13,6
15 9,6 1,1 5 6,9
23 13,0 12,5
15 12,4 1,3 10 3,9
23 13,0 10,4
15 16,4 1,4 15 2,6
23 18,7 7,0
Cooling capacities of the WSP 140/WSP 180 heat pumps
Inlet temperat.
WSP [°C]
Outlet temperat.
WSP [°C]
Air volume flow
WSP [m3/h]
Brine circuit
temperature [°C]
Cooling capacity
[kW]
15 6,8 1,6 0 15,4
23 10,0 24,0
15 9,6 1,9 5 11,9
23 13,0 21,8
15 12,4 2,2 10 6,8
23 16,0 18,0
15 16,4 2,5 15 4,6
23 18,8 12,3
We reserve the right to modify the dimensions and design as part of the ongoing technical development
process.
REMKO cooling module
8

2.2 Pump characteristic curves
Heating pump, heat pump
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6
Q [m³/h]
0
1
2
3
4
5
6
7
[m]
H
0
10
20
30
40
50
60
[kPa]
p
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Q [l/s]
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6
Q [m³/h]
0
10
20
30
40
50
[W]
P1
2
1
3
3
4
Fig. 1: Circulation pump: Grundfoss UPM 3 25-70 130 - capacity range
1: Pressure [kPa] / 2: Height [m] 3: Medium flow rate [m3/h] / 4: Speed
External control via analogue-In PWM signal. The tolerances of each curve are in accordance with EN
1151-1:2006.
Stage Effective power consumption [W] Current consumption [A] Motor protection
min./max. 2/52 0.04/0.52 blocking current resistant
9

2.3 Unit dimensions
Ø22 (WSP 80/110)
Ø28 (WSP 140/180)
Ø 54x100
85 130 220 130 85
G 1" (WSP 80/110)
G 1
¼ " (WSP 140/180)
150
65 60
123
100
650
450 27
Fig. 2: Unit dimensions (all measurements in mm)
We reserve the right to modify the dimensions and design as part of the ongoing technical development
process.
REMKO cooling module
10

3 Unit description
1
2
Fig. 3: Unit description
1: Cooling mode
2: WSP heat pump
The REMKO cooling module [1] is designed for
cooling mode for the REMKO WSP heat pump [2].
It is suitable for passive cooling, e.g. via a surface
system or fan convectors with condensate
drainage connection. Operation via the cooling
module directly in the surface system is possible.
The cooling temperature is controlled via the
internal pump’s speed in the WSP indoor unit. Only
the existing source temperature is used for cooling.
The cooling capacity that is available is limited
entirely to the source capacity and should be
checked accordingly to ensure that it is suitable for
the purpose. Depending on the type and version of
the source, this will heat up further for cooling as
the operating hours increase. This results in the
cooling capacity reducing gradually and the source
regenerating itself for the heating required in
winter.
Cooling mode method of operation
B
AB
A12
A
B
AB
A
S13
A12
A
B
C
D
Fig. 4: Method of operation
A: Brine outlet
B: Brine inlet
C: Cooling inlet
D: Cooling return flow
In heating mode, both changeover valves in posi-
tions AB to B are opened. In cooling mode, both
changeover valves in positions AB to A are
opened.
11

4 Assembly
NOTICE!
In order to prevent damage to the copper pipes,
when installing the hot water and brine connec-
tions, the cooling module connection must be
safeguarded with a suitable tool (e.g. a
spanner) to prevent twisting!
Proceed as follows to install the cooling module on
a REMKO WSP heat pump:
1. Open the packaging and check for damage
and completeness.
2. Loosen and remove the two screws on the
right and left of the module’s front cover, and
remove the front cover.
3. Depending on the system size, the delivery
contains one or two angled connections in
order to install the module on the WSP
indoor unit. They are installed on the indoor
unit with seals.
4. After installing the angled connections, the
cooling module is set and installed on the
WSP indoor unit’s connections. Ensure that
all connections are also installed with the
seals that are supplied.
5. The S13 probe that is already installed on the
cooling module is installed on the WSP
indoor unit’s I/O module. To do this, unplug
the plug installed for this from the I/O mod-
ule’s terminal block and replace it with the S
13 plug that is already attached to the probe
cable from the cooling module.
6. The two changeover valves that are installed
in the cooling module are already connected
with a suitable plug (A12). The cable with the
fitted A12 plug must be connected to the heat
pump’s I/O module. To do this, unplug the
existing plug and replace it with the plug from
the cooling module.
7. After installing, check all screw connections
between the cooling module and the WSP
indoor unit once again.
8. In order to bleed the cooling module, remove
the two cover caps [1] from the top next to
the hydraulic connections. If there is still air in
the cooling module after filling and rinsing the
heating and brine circuit, you can bleed both
sides here.
1
B
AB
A12
A
B
AB
A
S13
A12
1
9. The module’s unit must be checked for leaks
after final installation is complete!
10. After the check is complete and the system
operates correctly, the front cover can be
closed again in reverse order to the proce-
dure described in point 2.
REMKO cooling module
12

Removing the actuator
Proceed as follows to replace the actuator:
1. Pull the safety split pin below the actuator out
so that the actuator can be removed [1].
2. Pull the actuator away from the valve body
[2].
1
2
VALVE
ACTUATOR
ASSEMBLING
3. Re-install the new drive in reverse order.
In order to replace the entire changeover valve, the
hydraulic connection for the valve [1] that is to be
replaced must be closed and bled accordingly.
After bleeding, you can loosen the three valve [1]
screw connections. After replacing one or both
valves [1], ensure that no air bubbles have formed
in the heat exchanger [2]. If there is air in the heat
exchanger [2], this can be bled manually via the
connections [3] in the upper part of the cooling
module for both sides. All screw connections must
be checked after replacing.
3
B
AB
A12
A
B
AB
A
S13
A12
3
2
11
13

5 Installation
5.1 Hydraulic connection
General notes
A separate interpretation of nominal flow rate
must be made for every system (see technical
data).
nWe recommend installing a buffer tank as a
hydraulic compensator for hydraulic isolation of
the heating/cooling circuit.
Hydraulic isolation is required when:
- different inlet temperatures are to be obtained
- the pressure drop in the heating distribution
system is greater than the max. pressure drop
stated in the technical data
- the use of other heat generators, e.g. com-
bustible burner for solid fuel, solar or bivalent
(dual-fuel) systems
nPerform 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.
nThe heating/cooling system must be protected
against excessively high and low temperatures.
nDo not reduce pipe diameters for the inlet and
return flow connections to the cooling module
before connecting a buffer tank.
nPlan for air bleed valves and drain-off taps at
appropriate places.
nFlush the system’s entire pipe network before
connecting the heat pump.
nThe heating/cooling system provided by the
customer must be protected to prevent the
temperature falling below the dew point (con-
densation water). The REMKO dew point mon-
itor with corresponding probes can be used for
this.
nCooling without a REMKO room temperature/
humidity probe is not permitted.
nOne or, where necessary, several expansion
vessels must be designed for the entire
hydraulic system.
nThe 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 static-pressure form
supplied with the heat pump.
nThe dirt trap must be checked during every
maintenance of the system.
nAll exposed metallic surfaces must be addition-
ally insulated.
nCooling mode via the heating circuit requires a
complete vapour density insulation along the
entire length of the pipework.
nAll outgoing heating circuits are to be secured
against the ingress of circulating water by
means of check valves.
nBefore being placed in service, the system
must be thoroughly flushed. Conduct a seal
test and perform a thorough bleeding of both
the indoor unit and the entire system - repeat-
edly, if necessary, in acc. with DIN standards.
REMKO cooling module
14

Hydraulic diagram for the WSP heat pump
Functions: Heating or cooling and hot water
This hydraulic cycle diagram serves solely to assist in planning activities;
the customer-provided hydraulic system on site must be planned and installed by the installation contractor!
M
M
MM
B
AB
A12
A
B
AB
A
S 13
A12
S 08
A10
B
AB A
S 09
A 04
S 08
A 22/23
A 10
A
B
C1
23 1
D
C2
E
B
AB
A12
A
B
AB
A
S13
A12
A: Heat pump with cooling module
B: Heat source
C1: Hot water storage tank
C2: Buffer tank in return flow
D: External probe
E: Electronic overflow protection valve
1: Hot water
2: Cold water
3: Unmixed heating cycle
15

5.2 Electrical wiring
I/O module terminal allocation
DI7 GND
S16 GND
(1.)
L3
L3
L1
L1
L2
L2
N
N
PE
PE
L1 L2 L3 NPe
1 2 3 4 Pe
LNEP `LNEP `LNEP NEP `L01A NEP 1A `L1 NEP `L21
ANEP `L31A NEP `L41A NEP 10A NEP 20A NEP 30A NEP 40
ANEP 02A 12A NEP 22A 32A NEP
42A 52A
rewoP stuptuOrotautcA
ylppuSrotautcA
stuptuOrotautcA stuptuOrotautcA
DNGV5+52S DNGV5+62S DNGV5+72S DNGV5+82S DNGV5+92S
DNG 04A DNG 14A DNG 24A DNG 34A DNG 44A DNG 54A DNG 64A
DNGSSnKLCOMIM
KNX - TP
1T01T0
2T02T0
RC
2B 2A 2B 3A
1BV21+ DNG1A
DNGR
14S04SDNGV5+02S 34S24SDNGV5+12S 54S44SDNGV5+22S
74S64SDNGV5+32S 94S84SDNGV5+42S
DNG10S DNG20S
Sensor Inputs
DNG30S DNG40S DNG50S DNG60S DNG70S DNG80S
Sensor Inputs
DNG90S DNG01S 1S DNG1 DNG21S DNG31S DNG41S DNG51S DNG61S
stuptuOeer
FlaitnetoP
03A 03A 13A 23A 33A 43
A
DS
esuF
54JR
TMS O/I
rosneS stupnI rosneS stupnI
S29
S28
S26
S25
S10
S16
A10
A03
A04
A20/21
S08
S14
S12
S11
S09
A46
S06
S05
S04
S03
S02
S01
A41
A11
A24/25
A42
A40
A02
A13
A01
A14
S07
(1.)
S27
S15
M
A12
A22/23
A34
A43
Sensor Inputs
S23
S24
A32
S13
Carel circuit board in the indoor unit
Optional pressure switch for brine circuit
Power utility contact S16 / Closed = enabled
Contact: potential-free!
Connection provided by the customer from the sub-distribution unit
Plug on the heating coil
Connection: 400V/3~/N/PE Connection: 400V/3~/N/PE
assigned
Connection provided
by the customer from the sub-distribution unit Connection provided
by the customer from the sub-distribution unit
REMKO cooling module
INL probe HP
Changeover valve
REMKO cooling module
16

Connecting the 3-way valve to the I/O module
A12
BK
BN
BU
A12 L
L
N
Pe
1
2
Fig. 5: Valve electrical wiring
1: I/O module
2: Servo-motor, 3-way valve
BK: black
BN: brown
BU: blue
6 Operating the controller
Activating / deactivating passive cooling
The settings for the passive cooling can be made
at expert level. To do so, touch the REMKO logo in
the upper right corner of the display.
User level
¯
Activate Expert level by touching the REMKO
logo at the top right
¯
Password input using “+/-”
(Password: 0321)
¯
Confirm password with “OK”
¯
Expert level
Activating passive cooling
Passive cooling is not activated ex works. You
must set the following parameters to activate this
function:
Expert level
¯
Settings
¯
Default settings
¯
System configuration
¯
Passive cooling
Deactivated Activated
17

7 Before commissioning
Initial commissioning
It is recommended that initial commissioning be
carried out by a REMKO service technician or a
technician authorised by REMKO. We also recom-
mend that you complete the commissioning report
and send it to REMKO by post or e-mail within
eight days. In addition, the following requirements
for commissioning must be met.
NOTICE!
Before commissioning, the complete system
hydraulics must be flushed and filled in accord-
ance with standards. If a drinking water storage
tank is installed, this must likewise be filled
before commissioning.
Heating system
nFill the heating system with demineralised
water in accordance with VDI 2035. We recom-
mend the addition of REMKO full heating pro-
tection.
nFlush, clean and bleed the entire heating
system (incl. hydraulic adjustment).
nTo determine possible pressure loss, perform a
pressure test. Eliminate leaks to prevent
oxygen from entering the piping system.
nAdjust the pre-pressure in the expansion
vessel to the static pressure of the system.
nThe type of design and the static height of the
system determine the operating pressure. The
pressure can be read off the pressure gauge.
nMake sure that all valves of the heating system
and the distributors are open to guarantee the
free medium flow rate.
nCheck the direction of flow of the heating cycle
(indicated on the heat pump).
Source system (brine-water closed system)
nTo determine possible pressure loss, perform a
pressure test. Eliminate leaks to prevent
oxygen from entering the piping system.
nAdjust the pre-pressure in the expansion
vessel to the static pressure of the system.
nFill the source system completely with brine
(water with antifreeze concentration of at least
25%) and bleed it.
nThe type of design and the static height of the
system determine the operating pressure. The
pressure can be read off the pressure gauge.
nMake sure that all valves of the source system
and the distributors are open to guarantee the
free medium flow rate.
nCheck the direction of flow of the source
system (indicated on the heat pump).
Source system (water-water system)
nPerform a leak test of the system.
nEnsure that the underwater pump or another
pump is pumping water. In some cases the
source pump must be bled and filled with
water.
nMake sure that all valves of the source system
and the distributors are open to guarantee the
free medium flow rate.
nCheck the direction of flow of the source
system (indicated on the heat pump).
REMKO cooling module
18

8 Commissioning
Control panel and information on commis-
sioning
NOTICE!
Before commissioning, the complete system
hydraulics must be flushed and filled in accord-
ance with standards. If a drinking water storage
tank is installed, this must likewise be filled
before commissioning.
The Smart-Control Touch is used to operate and
control the complete heating system. The Smart
Control Touch is operated via the touch display.
nThe unit is pre-installed at the factory. After a
reset of the Smart Control, the default parame-
ters are loaded.
nAn intensive visual inspection is to be carried
out before the actual commissioning.
nSwitch on the power supply.
nThe pre-installed data is then loaded and the
parameters can be set using the commis-
sioning wizard or in the system configuration.
You can find information on this in the separate
operating instructions of the Smart Control.
Additional information on the functional and
operation, refer to the Smart-Control manual.
9 Care and maintenance
Regular care and maintenance assure fault-free
operation and long service life for the heat pump
system.
Care
nThe heat pump must be kept free of dirt and
other deposits.
nThe unit is to be cleaned with a damp cloth. In
doing so, ensure that no caustic, abrasive or
solvent-based cleaning products are used. Use
of powerful water jets is to be avoided.
Cleaning the heat source site
NOTICE!
A dirt trap must be installed in the heat source
inlet of the heat pump to protect the evaporator
against contamination.
The filter screen of the dirt trap should be cleaned
one day after commissioning. Further checks
should be determined according to the level of pol-
lution. If no more impurities are visible, the filter of
the dirt trap can be removed to reduce the pres-
sure losses.
Maintenance
nTo perform the statutory leak test where appli-
cable, it is necessary to arrange a yearly main-
tenance contract with an appropriate specialist
firm.
Leak test
According to Regulation (EC) No. 842/2006, all
refrigeration systems containing a refrigerant filling
quantity of at least 2.4 kg, with “hermetically
sealed” refrigeration systems of at least 4.7 kg,
must be checked for leaks by the operator yearly.
The leak test must be documented and kept for at
least 5 years. The checks must be carried out by
certified personnel in accordance with Regulation
(EC) No. 1516/2007.
NOTICE!
If the refrigerant capacity of 2.4 or 4.7 kg is
exceeded, an annual leak testing must be made
of the refrigerant circuit by a firm specialising in
this field. A heat pump should always be serv-
iced yearly. Therefore, we recommend
arranging for a service contract that includes
the leak inspection.
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NOTICE!
Country-specific laws may differ from Regula-
tion (EC) 842/2006. The respective national
laws for leak testing of heat pumps must be
observed.
Checking the filling level and filling pressure of
the brine cycle
NOTICE!
Leaks in the brine cycle can lead to brine
leaking and damage. For this purpose, switch
off the automatic circuit breakers of the heat
pump.
–Switch off the heat pump if there are leaks
in the brine cycle.
–Have leaks repaired by your specialist tech-
nician.
NOTICE!
If the brine level is too low, the heat pump may
be damaged.
–After initial operation, check the brine level
daily for one week and half-yearly there-
after.
–Have your specialist refill the brine liquid.
If the brine level drops slightly in the first month
after the system is commissioned, this is normal.
The level can also vary depending on the tempera-
ture of the heat source. However, it must never
sink so far that it is no longer visible in the brine
expansion tank, as otherwise air will enter the
brine cycle. Check the brine level or filling pressure
of the brine cycle and the pre-pressure of the dia-
phragm expansion vessel at regular intervals.
You can read the filling pressure of the brine cycle
(“pressure heat source”) in the heat pump con-
troller.
The filling pressure should be between 1 and 2
bar. If the filling pressure drops below 0.2 bar, the
heat pump is automatically switched off and an
error message is displayed.
10 Temporary shutdown
The system may not be switched off at the mains
power supply even if the heat pump is not used for
heating purposes over an extended period (e.g.
holidays)!
nThe system is to be switched to "Stand-by"
mode for heating during temporary shutdowns
and for hot water it should be switched to "Off"
mode.
nHeating phases can be programmed for the
duration of the period of absence.
nThe previous operating mode has to be
switched back on when the shutdown phase is
over.
nInstructions for changing the mode appear in
the corresponding chapter of the heat-pump
manager's manual.
NOTICE!
In "Standby" , the heat pump is in standby
mode. Of the entire system, only the frost-pro-
tection function s activated.
REMKO cooling module
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