Dimplex LS 60S-TUR User guide

Order no.: 452163.66.79-EN EN · FD 0305
LA 60S-TUR
Installation and
Operating Instruction
Air-to-Water
Heat Pump for
Outdoor Installation
Glen
Dimplex
Deutschland
Dimplex

www.dimplex.de 452163.66.79-EN · FD 0305 EN-3
LA 60S-TUR English
Table of contents
1 Safety notes..................................................................................................................................................EN-4
1.1 Symbols and markings...................................................................................................................................................EN-4
1.2 Intended use......................................................................................................................................................................EN-4
1.3 Legal regulations and directives .................................................................................................................................EN-4
1.4 Energy-efficient use of the heat pump.....................................................................................................................EN-4
2 Purpose of the heat pump ........................................................................................................................EN-5
2.1 Application .........................................................................................................................................................................EN-5
2.2 Operating principle..........................................................................................................................................................EN-5
3 Scope of supply ...........................................................................................................................................EN-6
3.1 Basic device .......................................................................................................................................................................EN-6
3.2 Switch box ..........................................................................................................................................................................EN-6
3.3 Heat pump manager .......................................................................................................................................................EN-6
4 Accessories...................................................................................................................................................EN-7
4.1 External four-way reversing valve...............................................................................................................................EN-7
5 Transport .......................................................................................................................................................EN-7
6 Installation ....................................................................................................................................................EN-8
6.1 General.................................................................................................................................................................................EN-8
6.2 Condensate pipe ..............................................................................................................................................................EN-8
7 Assembly .......................................................................................................................................................EN-9
7.1 General.................................................................................................................................................................................EN-9
7.2 Connection on heating side .........................................................................................................................................EN-9
7.3 Water Quality in Heating Systems..............................................................................................................................EN-9
7.4 Electrical connection ................................................................................................................................................... EN-12
8 Start-up....................................................................................................................................................... EN-13
8.1 General.............................................................................................................................................................................. EN-13
8.2 Preparation...................................................................................................................................................................... EN-13
8.3 Procedure ........................................................................................................................................................................ EN-13
9 Cleaning / maintenance ......................................................................................................................... EN-13
9.1 Maintenance ................................................................................................................................................................... EN-13
9.2 Cleaning the heating system .................................................................................................................................... EN-14
9.3 Cleaning the air system............................................................................................................................................... EN-14
10 Faults / troubleshooting......................................................................................................................... EN-15
11 Decommissioning / disposal ................................................................................................................. EN-15
12 Device information .................................................................................................................................. EN-16
13 Product information as per Regulation (EU) No 813/2013, Annex II, Table 2........................... EN-18
14 Dimension Drawings................................................................................................................................ EN-19
14.1 Dimension Drawing ...................................................................................................................................................... EN-19
15 Diagrams .................................................................................................................................................... EN-20
15.1 Characteristic curves for heating operation ........................................................................................................ EN-20
15.2 Characteristic curves for cooling operation......................................................................................................... EN-21
15.3 Operating limits diagram heating ............................................................................................................................ EN-22
15.4 Operating limits diagram cooling ............................................................................................................................ EN-23
16 Integration diagram ................................................................................................................................. EN-24
16.1 Hydraulic integration diagrams ................................................................................................................................ EN-24
17 Declaration of Conformity ..................................................................................................................... EN-26

EN-4 452163.66.79-EN · FD 0305 www.dimplex.de
English LA 60S-TUR
1Safetynotes
1.1 Symbols and markings
Particularly important information in these instructions is
marked with CAUTION! and NOTE.
CAUTION!
!
!
Immediate danger to life or danger of severe personal injury or
significant damage to property.
NOTE
º
ºººº
Risk of damage to property or minor personal injury or
important information with no further risk of personal injury
or damage to property.
1.2 Intended use
This device is only intended for use as specified by the manu-
facturer. Any other use beyond that intended by the manufac-
turer is prohibited. This requires the user to abide by the rele-
vant project planning documents. Please refrain from
tampering with or altering the device.
1.3 Legal regulations and directives
This heat pump is designed for use in a domestic environment
according to Article 1, Paragraph 2 k) of EU directive 2006/42/
EC (machinery directive) and is thus subject to the require-
ments of EU directive 2014/35/EU (low-voltage directive). It is
thus also intended for use by non-professionals for heating
shops, offices and other similar working environments, in agri-
cultural establishments and in hotels, guest houses and similar
/ other residential buildings.
The construction and design of the heat pump complies with all
relevant EU directives, DIN/VDE regulations (see CE declaration
of conformity).
When connecting the heat pump to the power supply, the rele-
vant VDE, EN and IEC standards are to be adhered to. Any fur-
ther connection requirements stipulated by the network opera-
tor must also be observed.
When connecting the heating system, all applicable regulations
must also be adhered to.
This unit can be used by children aged 8 and over and by per-
sons with limited physical, sensory or mental aptitude or lack of
experience and/or knowledge, providing they are supervised or
have been instructed in the safe use of the unit and understand
the associated potential dangers.
Children must not play with the device. Cleaning and user
maintenance must not be carried out by children without su-
pervision.
CAUTION!
!
!
When operating or maintaining a heat pump, the legal
requirements of the country where the heat pump is operated
apply. Depending on the refrigerant quantity, the heat pump
must be inspected for leaks at regular intervals by a certified
technician, and these inspections must be recorded.
More information can be found in the accompanying log book.
1.4 Energy-efficient use of the heat
pump
By operating this heat pump, you are helping to protect the en-
vironment. A prerequisite for energy-efficient operation is the
correct design of the heat source system and heating system.
It is particularly important for the efficiency of a heat pump to
keep the temperature difference between heating water and
heat source as small as possible. For this reason, it is advisable
to design the heat source and heating system very carefully. A
temperature difference of approx. one Kelvin (one °C) in-
creases the power consumption by around 2.5 %. When de-
signing the heating system, it should be borne in mind that spe-
cial consumers such as e.g. domestic hot water preparation
should also be taken into consideration and dimensioned for
low temperatures. Underfloor heating systems (panel heating)
are optimally suited for heat pump use on account of the low
flow temperatures (30 °C to 40 °C).
It is important to ensure that the heat exchangers are not con-
taminated during operation because this increases the temper-
ature difference, in turn reducing the COP.
Correct adjustment of the heat pump manager is also impor-
tant for energy-efficient use of the heat pump. Further informa-
tion can be found in the operating instructions of the heat
pump manager.

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2 Purpose of the heat pump
2.1 Application
The air-to-water heat pump is to be used exclusively for the
heating and cooling of heating water. It can be used in new or
existing heating systems.
The circulating pump(s) must be controlled using the heat
pump manager.
If function-relevant or safety-relevant pump functions, such as
integration of the heat pump into the building management
system, are not supported, then this can result in loss of war-
ranty and cause a write-off of the heat pump.
The circulating pump(s) and the heat pump controller must al-
ways be ready for operation.
The specifications in the technical documents must be fol-
lowed, particularly limit values for the minimum and – if availa-
ble – maximum warm/cold water volume flow.
The heat pump is suitable for mono-energy and bivalent opera-
tion down to an external temperature of -22 °C.
Proper defrosting of the evaporator is guaranteed by maintain-
ing a heating water return temperature of more than 22 °C dur-
ing continuous operation.
The heat pump is not designed for the increased heat con-
sumption required when a building is being dried out. For this
reason, the additional heat consumption should be met using
special devices provided by the customer. For drying out build-
ings in autumn or winter, we recommend installing a suitable
2nd heat generator (e.g. electric heating element available as an
accessory).
In cooling operation, the heat pump is suitable for air tempera-
tures ranging from +10 °C to + 45 °C.
It can be used for silent and dynamic cooling. The minimum
water temperature is +7 °C.
NOTE
º
ºººº
The device is not suitable for operation with a frequency
converter.
2.2 Operating principle
Heating
Surrounding air is drawn in by the fan and fed through the evap-
orator (heat exchanger). The evaporator cools the air, i.e. it ex-
tracts heat from it. This extracted heat is then transferred to the
working medium (refrigerant) in the evaporator.
The heat is brought to a higher temperature level by increasing
its pressure with the aid of the electrically driven compressor. It
is then transferred to the heating water via the liquefier (heat
exchanger).
Electrical energy is used to raise the temperature of the heat in
the environment to a higher level. As the energy extracted from
the air is transferred to the heating water, this type of device is
called an air-to-water heat pump.
The air-to-water heat pump consists of the main components:
evaporator, ventilator and expansion valve, as well as the low-
noise compressors, the liquefier and the electrical control sys-
tem.
At low ambient temperatures, humidity accumulates on the
evaporator in the form of frost, reducing the transfer of heat.
Uneven accumulation during this process does not indicate a
fault. The evaporator is defrosted automatically by the heat
pump as required. Steam may be emitted from the air outlet de-
pending on the atmospheric conditions.
Cooling
The functions of the evaporator and the liquefier are reversed in
the "Cooling" operating mode.
The heating water transfers its heat to the refrigerant via the liq-
uefier, which is now functioning as an evaporator. The refriger-
ant is brought to a higher temperature level using the compres-
sor. Heat is transferred to the surrounding air via the liquefier
(which, in heating operation, functions as an evaporator).

EN-6 452163.66.79-EN · FD 0305 www.dimplex.de
English LA 60S-TUR
3 Scope of supply
3.1 Basic device
The heat pump contains the components listed below.
The refrigeration circuit is "hermetically sealed" and contains
the fluorinated refrigerant R407C included in the Kyoto proto-
col. Information on the GWP value and CO2equivalent of the
refrigerant can be found in the chapter Device information. The
refrigerant is CFC-free, non-ozone depleting and non-combus-
tible.
1) Evaporator
2) Liquefier
3) Fan
4) Switch box
5) Compressor 1
6) Compressor 2
7) Filter dryer
8) Expansion valve
9) Inner heat exchanger
10) Collector
11) Dirt trap
3.2 Switch box
The switch box is located in the heat pump. It can be swung out
after removing the lower front cover and loosening the fasten-
ing screw located in the upper left-hand corner.
The switch box contains the supply connection terminals as
well the power contactors and the soft starter unit.
3.3 Heat pump manager
Use the heat pump manager included in the scope of supply to
operate the air-to-water heat pump.
The heat pump manager is a convenient electronic regulation
and control device. It controls and monitors the entire heating
system based on the external temperature, as well as domestic
hot water preparation and safety systems.
The customer must install the external temperature sensor,
which is included in the scope of supply of the unit heat pump
and heat pump manager together with the necessary fixing ac-
cessories.
The enclosed operating instructions describe the function and
use of the heat pump manager.
29
1
3
45
6
7
8
10
10
11
11

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4 Accessories
4.1 External four-way reversing
valve
The external four-way reversing valve (Y12) enables optimised
heating and cooling operation of the reversible air-to-water
heat pump. Switching the direction of flow ensures an optimal
flow through the heat exchanger in the heat pump in heating
operation as well as in the opposite direction in cooling opera-
tion. The actuator, driven by an electrical motor and required for
automatic switching, is controlled by the heat pump manager.
(Max. permissible switching current 2A).
The external four-way reversing valve with an actuating time of
max. 30 seconds ensures switching of the water flow over the
complete temperature operating range without any mixing
losses.
The installation of the four-way reversing valve, available as an
accessory, is required to reach the heating and cooling capacity
and coefficient of performance (COP) mentioned in the device
information. The specified operating limits are only fulfilled in
combination with this accessory. A detailed installation descrip-
tion can be found in the instructions included with the valve.
NOTE
º
ºººº
For operation of the heat pump with the external four-way
reversing valve, it is essential to set up the hydraulic
connections according to the instructions included with the
valve. These instructions describe the procedure for setting
up the correct hydraulics in more detail. The alternating
direction of flow in the heating and cooling operation is to be
checked as part of commissioning.
The hydraulic circuit diagrams in the attachment show the
basic design.
5 Transport
CAUTION!
!!
When transporting the heat pump, ensure that it is not tilted
more than 45° (in any direction).
Transport to the final installation location should be carried out
with a pallet. The basic device can be transported with a lift
truck or a crane.
The transport eyebolts must be removed after crane transport,
and the openings must be closed using the vent plugs supplied.
After transportation, the transport fastening in the device is to
be removed from both sides of the base.
CAUTION!
!
!
Before start-up, the transport fastening must be removed.
Remove/screw in
transport lock (4x)

EN-8 452163.66.79-EN · FD 0305 www.dimplex.de
English LA 60S-TUR
6Installation
6.1 General
The device must be installed on a permanently level, smooth
and horizontal surface. The frame around the device must lie
tightly against the floor to guarantee adequate sound insula-
tion, to prevent water-bearing parts from cooling out and to
protect the inside of the device from small animals. If this is not
the case, additional insulation measures may be necessary. To
prevent small animals from entering the inside of the device, it
may be necessary to seal the connection hole in the base plate,
for example. Furthermore, the heat pump should be set up so
that the air outlet direction of the ventilator is perpendicular to
the main wind direction to allow unrestricted defrosting of the
evaporator. The heat pump is designed for installation on even
ground. If the installation conditions differ (installation on a
platform or flat roof) or there is a greater risk of the heat pump
tipping over (due to an exposed position or high wind expo-
sure), additional protection against tipping over must be pro-
vided. The responsibility for the heat pump installation lies with
the specialist system construction company. During the instal-
lation, local requirements such as building regulations, static
load of the building, and wind exposure must be accounted for.
It must be possible to carry out maintenance work without hin-
drance. This is ensured when observing the distances to solid
walls as shown in the figure.
The specified dimensions are valid for stand-alone installation
only.
NOTE
º
ºººº
The heat pump is not intended for use above 2000 metres
(mean sea level).
CAUTION!
!
!
Do not restrict or block the area around the air intake or outlet.
CAUTION!
!
!
Observe country-specific building regulations!
CAUTION!
!
!
For installation close to walls the physical influences of the
building must be considered. No windows or doors should be
present in the area surrounding the air outlet of the ventilator.
CAUTION!
!
!
In cases of installation close to a wall, there may be more
sediment in the air inlet and outlet areas due to the air current.
The colder outside air outlet should discharge in such a way as
to not increase the heat losses in heated neighbouring rooms.
CAUTION!
!
!
Installation in a hollow or in an inner courtyard is not
permitted because cooled air collects at ground level and is
drawn in again by the heat pump during lengthy operation.
6.2 Condensate pipe
Condensate that forms during operation must be drained off
frost-free. To ensure proper drainage, the heat pump must be
mounted horizontally. The condensate pipe must have a mini-
mum diameter of 50 mm and must be fed into a sewer in such
a way that it is safe from frost. Do not discharge the condensate
directly into clearing tanks or cesspits, as aggressive vapours or
a condensed water pipe which has not been laid in a frost-free
manner could destroy the evaporator.
CAUTION!
!!
The frost line can vary according to the climatic region. The
regulations of the countries in question must be observed.
1,0 m 2 m
≥
0m
0,8m
Frost line
Condensate drain
Flow and return
Electric cables
Heat pump
0,20 m
Control and main cables

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7 Assembly
7.1 General
The following connections need to be established on the heat
pump:
Heating system flows and returns
Condensate outflow
Control line to the heat pump manager
Voltage supply
7.2 Connection on heating side
The heating system connections on the heat pump are to be
made inside the device. Refer to the device information for the
connection sizes. Route the connection hoses out of the device
in a downwards direction. An optional pipe kit is available as an
accessory, which can be used to lead the connections out to
the side.
Use a spanner to firmly grip the transitions when connecting
the heat pump.
Before connecting the heating water system to the heat pump,
the heating system must be flushed to remove any impurities,
residue from sealants, etc. Any accumulation of deposits in the
liquefier could cause the heat pump to completely break down.
Once the heat pump has been connected to the heating sys-
tem, it must be filled, de-aerated and pressure-tested.
NOTE
º
ºººº
Pump units with check valves maintain the specified flow
directions. If there is incorrect distribution or breaking off of
the volume flow, these units (and the check valves in
particular) must be checked! The use of check valves are
mandatory in the event of several heating circuits or parallel
connections for heat pumps in order to avoid incorrect
distribution.
7.3 Water Quality in Heating
Systems
7.3.1 Scale Formation
Scale formation in heating systems cannot be avoided, but in
systems with flow temperatures below 60 °C the problem is so
small that it is negligible. With high-temperature heat pumps
and in particular with bivalent systems in the higher perfor-
mance range (heat pump + boiler combination), flow tempera-
tures of 60 °C and more can be achieved. One preferred
method for preventing scale formation is softening because
this permanently removes alkaline earths (calcium and magne-
sium ions) from the heating system.
The following values for water quality in heating water and cold
water must be observed and checked during an on-site check:
Degree of hardness
Conductivity
pH value
Filterable materials
The following (limit) values must absolutely be observed:
Maximum degree of hardness in filling water and supple-
mentary water 11 dGH.
The conductivity in demineralised water (DM water) (low-
salt) may not be greater than 100 μS/cm.
The conductivity in partially demineralised water (saline)
may not be greater than 500 μS/cm.
The pH value must be between 8.2 and 9.
The limit value for filterable materials in heating water is <
30 mg/l

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If necessary, for example in bivalent systems, the specifications
listed in the table below must also be observed, or the precise
guidelines for filling water and supplementary water and the
total hardness must be taken from the table in accordance with
VDI 2035 – Sheet 1.
NOTE
º
ºººº
The specific volumes of a heating system must be determined
before filling the system.
The saturation index SI is used to determine whether water has
a tendency towards lime dissolution or lime separation. This
shows whether the pH value corresponds to a neutral pH point
or by how much it undershoots it due to excess acid or by how
much it exceeds it due to carbonic acid deficit. At a saturation
index below 0, the water is aggressive and will tend towards
corrosion. At a saturation index above 0, the water is calcare-
ous.
The saturation index SI should be between - 0.2 < 0 < 0.2
Fig. 7.1:Guideline values for filling and supplementary in accordance with
VDI 2035
CAUTION!
!
!
When using demineralised water, ensure that the minimum
permissible pH value of 8.2 is not undershot. Failure to comply
with this value can result in the heat pump being destroyed.
7.3.2 Corrosion
The VDI 2035 recommends the use of partially demineralised
water or demineralised water in systems with larger-than-aver-
age specific system volumes of 50 l/kW.
These measures (e.g. pH stabilizers) are implemented to set the
pH value of the heating water to minimise the risk of corrosion
in the heat pump and in the heating system.
Irrespective of the legal requirements, the following limit values
in the heating water used for various substances must not be
undershot or exceeded. This is to ensure safe operation of the
heat pump. A water analysis must be carried out before com-
missioning the system. If the water analysis produces a "-" for a
maximum of one indicator or a "o" for a maximum of two indica-
tors, the analysis must be classed as negative.
Filling and supplementary water as well as heating water, depending on
heat output
Overall heat output in kW
Total alkaline earths in mol/m³
(Total hardness in dGH)
 20 20 to 50 50
Specific system volume in l/kW
Heat output 1
1. For the purpose of calculating the specific system volume, the smallest indi-
vidual heat output is to be used for systems with several heat generators.
50
specific water content
heat generator > 0.3 k per kW 2
2. In systems with several heat generators with different specific water con-
tents, the smallest specific water content is decisive.
none 3.0 (16.8)
< 0.05 (0.3)
50
specific water content
heat generator > 0.3 k per kW 2
(e.g. circulating water heaters)
and systems with electric heat-
ing elements
3.0 (16.8) 1.5 (8.4)
> 50 kW to 200 kW 2.0 (11.2) 1.0 (5.6)
> 200 kW to 600 kW 1.5 (8.4)
< 0.05 (0.3)
> 600 kW < 0.05 (0.3)
Heating water, depending on heating output
Operating mode Electrical conductivity in µS/cm
Low-salt 3
3. Full softening is recommended for systems with aluminium alloys.
> 10 to 100
Containing salt > 100 to 1500
Appearance
clear, free from sedimentary substances
Evaluation characteristic
Concentration
range
(mg/l or ppm)
Stain-
less steel Copper
Bicarbonate (HCO3-)< 70 + o
70 - 300 + +
> 300 + o
Sulphate (SO42-)< 70 + +
70 - 300 o o/-
> 300 - -
Hydrogencarbonate/sulphate
HCO3-/SO42-
> 1.0 + +
< 1.0 o -
Electrical conductivity 1< 10 µS/cm o o
10 - 500 µS/cm + +
> 500 µS/cm o o
pH value 2< 6.0 - -
6.0 - 8.2 o o
8.2 - 9.0 + +
> 9.0 o o
Ammonium (NH4+)< 2 + +
2 - 20 o o
> 20 - -
Chloride ions (Cl-)< 50 + +
50 - 150 o o
> 150 - -
Free chlorine (Cl2)< 0.5 + +
0.5 - 5 - o
> 5 - -
Hydrogen sulphide (H2S) < 0.05 + +
> 0.05 + o/-
Carbon dioxide (CO2)< 5 + +
5 - 10 + o
> 10 o -
Nitrate (NO3-)< 100 + +
> 100 o o
Iron (Fe) < 0.2 + +
> 0.2 o o
Aluminium (Al) < 0.2 + +
> 0.2 + o
Manganese (Mn) < 0.05 + +
> 0.05 o o