Dimplex LIA 0608BWCF M User guide

LIA 0608BWCF M
LIA 0911BWCF M
LIA 1316BWCF (M)
Order no.: 452172.66.10-EN EN · FD 0311
LIA 0608BWCF M
LIA 0911BWCF M
LIA 1316BWCF
LIA 1316BWCF M
Installation and
Operating Instruction
Split air-to-water heat
pump with Hydrotower
Glen
Dimplex
Deutschland
Dimplex

www.dimplex.de 452172.66.10-EN · FD 0311 EN-1
LIA 0608BWCF M - LIA 1316BWCF M English
Table of contents
1 Safety notes..................................................................................................................................................EN-3
1.1 Symbols and markings...................................................................................................................................................EN-3
1.2 Safety notes for the use of the refrigerant R32 .....................................................................................................EN-3
1.3 General safety notes .......................................................................................................................................................EN-3
1.4 Intended use......................................................................................................................................................................EN-3
1.5 Legal regulations and directives .................................................................................................................................EN-4
2 Purpose..........................................................................................................................................................EN-4
2.1 Area of application...........................................................................................................................................................EN-4
2.2 General properties ...........................................................................................................................................................EN-4
3 Scope of supply ...........................................................................................................................................EN-5
3.1 Indoor unit ..........................................................................................................................................................................EN-5
3.2 Heat pump manager .......................................................................................................................................................EN-5
3.3 Outdoor unit.......................................................................................................................................................................EN-6
4 Transport and storage................................................................................................................................EN-6
4.1 Transporting the indoor unit ........................................................................................................................................EN-7
4.2 Removing transport fastening (depending on the device) ................................................................................EN-7
5 Installation ....................................................................................................................................................EN-7
5.1 Indoor unit ..........................................................................................................................................................................EN-7
5.2 Outdoor unit.......................................................................................................................................................................EN-8
5.3 Heat pump installation conditions: ......................................................................................................................... EN-10
5.4 Installation in coastal areas........................................................................................................................................ EN-12
5.5 Precautions in winter and in seasonal winds....................................................................................................... EN-12
6 Assembly indoor unit............................................................................................................................... EN-13
6.1 General.............................................................................................................................................................................. EN-13
6.2 Opening indoor unit ..................................................................................................................................................... EN-13
6.3 Connection on heating side ...................................................................................................................................... EN-13
6.4 Water Quality in Heating Systems........................................................................................................................... EN-14
7 Connecting the pipework and cables to the outdoor unit ............................................................. EN-17
7.1 Refrigerant pipes........................................................................................................................................................... EN-17
7.2 Electrical connections ................................................................................................................................................. EN-20
7.3 Final work......................................................................................................................................................................... EN-21
7.4 Leak test and evacuation............................................................................................................................................ EN-22
8 Commissioning ......................................................................................................................................... EN-23
8.1 General.............................................................................................................................................................................. EN-23
8.2 Preparation...................................................................................................................................................................... EN-23
8.3 Commissioning procedure ........................................................................................................................................ EN-24
9 Test points, maintenance and troubleshooting................................................................................ EN-25
9.1 Checklist prior to commissioning............................................................................................................................ EN-25
9.2 Maintenance ................................................................................................................................................................... EN-26
9.3 Troubleshooting ............................................................................................................................................................ EN-27
9.4 Characteristic curve temperature sensor outdoor unit.................................................................................... EN-28
9.5 Characteristic curve temperature sensor indoor unit....................................................................................... EN-29
10 Cleaning / maintenance ......................................................................................................................... EN-30
10.1 Care.................................................................................................................................................................................... EN-30
10.2 Cleaning the heating system .................................................................................................................................... EN-30
11 Faults / troubleshooting......................................................................................................................... EN-30
12 Decommissioning / disposal ................................................................................................................. EN-30
13 Device information .................................................................................................................................. EN-31
14 Performance values................................................................................................................................. EN-35
14.1 Performance values, heating LIA 0608BWCF M................................................................................................ EN-35
14.2 Performance values, heating LIA 0911BWCF M................................................................................................ EN-36

EN-2 452172.66.10-EN · FD 0311 www.dimplex.de
English LIA 0608BWCF M - LIA 1316BWCF M
14.3 Performance values, heating LIA 1316BWCF (M) ............................................................................................. EN-37
14.4 Performance values, cooling LIA 0608BWCF M ................................................................................................ EN-38
14.5 Performance values, cooling LIA 0911BWCF M ................................................................................................ EN-39
14.6 Performance values, cooling LIA 1316BWCF (M).............................................................................................. EN-40
15 Product information as per Regulation (EU) No 813/2013, Annex II, Table 2........................... EN-41
16 Dimension drawings................................................................................................................................ EN-45
16.1 Dimension drawing outdoor unit LIA 0608BWCF M ........................................................................................ EN-45
16.2 Dimension drawing outdoor unit LIA 0911BWCF M / LIA 1316BWCF M / LIA 1316BWCF.............. EN-46
16.3 Foundation plan LIA 0608BWCF M ........................................................................................................................ EN-47
16.4 Foundation plan LIA 0911BWCF M / LIA 1316BWCF M / LIA 1316BWCF.............................................. EN-47
16.5 Dimension drawing indoor unit ................................................................................................................................ EN-48
17 Diagrams .................................................................................................................................................... EN-49
17.1 Operating limits diagram heating ............................................................................................................................ EN-49
17.2 Operating limits diagram cooling ............................................................................................................................ EN-50
18 Circuit diagrams ....................................................................................................................................... EN-51
18.1 Circuit diagram LIA 0608BWCF M / LIA 0911BWCF M .................................................................................. EN-51
18.2 Circuit diagram LIA 1316BWCF M 1-phase......................................................................................................... EN-52
18.3 Circuit diagram LIA 1316BWCF 3-phase.............................................................................................................. EN-53
18.4 Legend.............................................................................................................................................................................. EN-54
19 Hydraulic integration diagrams ............................................................................................................ EN-56
19.1 Mono energy system with one heating circuit.................................................................................................... EN-56
19.2 Mono energy system with one heating circuit and domestic hot water preparation............................ EN-57
19.3 Legend.............................................................................................................................................................................. EN-58
20 Declaration of conformity ...................................................................................................................... EN-59

www.dimplex.de 452172.66.10-EN · FD 0311 EN-3
LIA 0608BWCF M - LIA 1316BWCF M English
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 Safety notes for the use of the
refrigerant R32
CAUTION!
!
!
The air-to-water heat pump contains R32. The refrigerant is
odourless and flammable
CAUTION!
!
!
Contact of refrigerant with hot surfaces, sparks, naked flames,
heat or other ignition sources (e.g. electric radiators) must be
avoided.
CAUTION!
!
!
Gas/vapours are heavier than air. They can accumulate in
enclosed spaces, especially on the floor or in lower-lying
areas.
CAUTION!
!!
In the event of refrigerant leakage, adequate ventilation must
be provided and the area must be cleared immediately
thereafter. If ventilation is not possible, leave the area
immediately.
CAUTION!
!
!
Thermal decomposition of the gas may produce toxic
substances.
CAUTION!
!
!
Contact with liquid refrigerant can cause cold burns/frostbite.
CAUTION!
!
!
At low concentrations, symptoms may include dizziness,
headache, nausea, and impaired coordination. There is a risk
of suffocation at higher concentrations.
CAUTION!
!!
The refrigerant must not be released into the atmosphere.
CAUTION!
!
!
Only components, tools and consumables approved for R32
refrigerant may be used for the heat pump listed here.
1.3 General safety notes
CAUTION!
!
!
Work on the heat pump must only be performed by
authorised and qualified specialist personnel.
CAUTION!
!
!
The responsibility for heat pump installation lies with the
specialist system construction company. During the
installation, local requirements such as building regulations,
the static load of the building, and wind exposure must be
accounted for.
CAUTION!
!
!
For the heat pump to work properly, perform installation,
maintenance and repair according to the installation
instructions. Improper handling can lead to damage to
property and injuries.
CAUTION!
!
!
Refrain from forcibly opening the device or burning it.
CAUTION!
!
!
All work must be carried out in compliance with national
regulations, legal provisions and these installation
instructions.
CAUTION!
!
!
Do not store or use any flammable or combustible substances
near the device.
CAUTION!
!
!
Improper installation or attachment of the device or
accessories can result in electric shock, short circuit, leakage,
fire and other damage.
CAUTION!
!
!
The device’s installation site must be sufficiently large and
well ventilated (see cap. 5.3.4).
CAUTION!
!
!
Do not pierce, puncture or crush parts of the refrigerant or
water circuit or electric wires.
CAUTION!
!
!
For repair work, only use tools and aids that are approved for
use with R32.
CAUTION!
!
!
The air-to-water heat pump must NOT be installed in areas
where corrosive gases such as acids or alkaline gases can
occur.
1.4 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.

EN-4 452172.66.10-EN · FD 0311 www.dimplex.de
English LIA 0608BWCF M - LIA 1316BWCF M
1.5 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, agricul-
tural establishments and hotels, guest houses and other resi-
dential buildings.
The construction and design comply with all relevant EC direc-
tives and DIN/VDE regulations (see CE declaration of conform-
ity).
When connecting to the power supply, the relevant VDE, EN
and IEC standards must be observed. Any further connection
requirements stipulated by local utility companies must also be
observed.
When connecting the heating system, all applicable regulations
must also be adhered to. Furthermore, the regulations applica-
ble to the local drinking water supply must be observed when
connecting to the domestic hot water preparation.
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 safe use of the unit and understand the
associated potential dangers.
Children must not play with the unit. Cleaning and user mainte-
nance must not be carried out by children without supervision.
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 fill quantity, the heat
pump must be inspected for leaks at regular intervals by a
certified technician, and these inspections must be recorded.
2Purpose
2.1 Area of application
The indoor unit constitutes the interface between a reversible
heat pump and the distribution system in the building. The in-
door unit contains all hydraulic components required between
heat generation and heat distribution with an unmixed heating
circuit.
Observe the operating limits according to the device informa-
tion.
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.
2.2 General properties
Minimal installation effort due to ready-to-use integrated
components
Ready for use, contains all essential components by way of
pumps, flow rate sensors, safety technology and heat
pump manager
The infinitely adjustable operation of the circulating pump
permits adjustment of the output according to need.
Switchable pipe heater (2/4/6 kW) for supplementary
heating and domestic hot water reheating

www.dimplex.de 452172.66.10-EN · FD 0311 EN-5
LIA 0608BWCF M - LIA 1316BWCF M English
3 Scope of supply
3.1 Indoor unit
Hydraulic components
Unmixed heating circuit including controlled circulating
pump
2. heat generator, electrical pipe heater, heat output 2 / 4 /
6 kW, secured via safety temperature limiter
Flow rate sensor
1.5 kW heating element
Three-way reversing valve
Cylinder (100 l and 300 l)
Overflow valve
Safety equipment:
Safety valve, start-to-leak pressure 3 bar
Refrigerating equipment
Heat exchanger refrigerant / heating water
Connections for split line
Electrical components
Heat pump manager with connection boards
Supply connection terminals and contactor, pipe heater
NOTE
º
ºººº
External sensor is included with the outdoor unit as standard.
Connection of an external sensor is possible Cap. 9.5.2 on
page 29.
NOTE
º
ºººº
An expansion vessel must be installed on-site.
3.2 Heat pump manager
The integrated heat pump manager is a convenient electronic
regulating and control device. It controls and monitors the en-
tire heating system based on the outside temperature, as well
as domestic hot water preparation and safety systems.
The enclosed operating instructions describe the function and
use of the heat pump manager.

EN-6 452172.66.10-EN · FD 0311 www.dimplex.de
English LIA 0608BWCF M - LIA 1316BWCF M
3.3 Outdoor unit
3.3.1 Outdoor unit 6 kW
3.3.2 Outdoor unit 10 kW / 14 kW
4 Transport and storage
During transport and storage, the unit must be kept in a dry
place and must not be exposed to temperatures below freez-
ing.
When storing the unit, care should be taken to ensure that no
other gases, liquids or solids can enter the unit. The connec-
tions of the unit should remain closed until the unit is finally in-
stalled. Furthermore, care must be taken to ensure that no
damage can occur to the unit or individual components during
the transport and storage of the unit. Please make sure that the
unit is not stacked (no load from above on the unit) or crushed.
When storing the unit, make sure that it is stored in a room with
a sufficiently large space (especially when storing in base-
ments, garages, conservatories, etc.).
CAUTION!
!
!
Refer to the product packaging labels for storage and
transport information.
CAUTION!
!
!
The unit must be stored in a well ventilated room where there
is no continuously present ignition source (example: naked
flames, gas-powered household appliance, electrically-
powered heating device, workshops).
CAUTION!
!
!
The unit must be stored in a well ventilated room where the
room size corresponds to the intended room area for
operation. (see cap. 5.3.4)

www.dimplex.de 452172.66.10-EN · FD 0311 EN-7
LIA 0608BWCF M - LIA 1316BWCF M English
4.1 Transporting the indoor unit
A pallet should be used for transportation to the final installa-
tion location.
Due to the high tare weight of the indoor unit, it should be
transported by means of a lift truck, hand truck, or similar. If this
is not possible, always transport the unit with several people.
When transporting the device, care must be taken not to dam-
age the unit, components and connections. Also protect the
device from moisture during transport.
The indoor unit tends to tip over when unfilled. Make sure that
it stands safely. If possible, the unit should always be trans-
ported upright.
CAUTION!
!
!
The indoor unit and transport pallet are connected together
with screws.
NOTE
º
ºººº
The indoor unit must not be tilted by more than 45°.
4.2 Removing transport fastening
(depending on the device)
After transportation, the transport fastening in the device is to
be removed from the base.
CAUTION!
!!
Please ensure that the transport fastening has been removed.
It causes unusual vibrations and noises at the heat pump if it is
operated with the transport fastening for the compressor in-
stalled.
5 Installation
5.1 Indoor unit
The unit should always be installed indoors on a level, smooth
and horizontal surface. The indoor unit must be installed in a
way that allows maintenance work to be carried out from the
operator side without hindrance. This can be ensured by main-
taining a clearance of 1 m at the front. The space required (ap-
prox. 30 cm, see dimension drawing) for replacing the protec-
tive anode must be taken into consideration when determining
the required height of the installation room. It must be installed
in a room protected from frost and with short pipe runs.
CAUTION!
!!
In an unfilled state (domestic hot water cylinder without
water), the device has a tendency to tilt in the direction of the
hydraulic assembly. Do not lean on the rear of the unit!
Setup and installation must be performed by an authorised
specialist company.
Fig. 5.1: Indoor unit clearances
If the indoor unit is installed on an upper floor, the load-bearing
capacity of the ceiling should be checked. On account of the
acoustics, measures for isolating possible vibrations should
also be carefully planned in advance. Installation on floors
above wooden ceilings is not recommended.
The device should not be installed in rooms with high humidity
(e.g. shower rooms, wash rooms, etc.).
Furthermore, please note that the device has a tendency to tip
over when unfilled. Make sure that it is standing safely and re-
frain from leaning against the device or leaning objects against
the device.
CAUTION!
!
!
The installation room must meet the requirements for the
minimum installation space (see cap. 5.3).
CAUTION!
!
!
The device must be installed in a room with sufficient air
circulation.
Remove
transport lock
LIA 1316BWCF
LIA 1316BWCF M
ca. / app. / env. 1m
Protection anode

EN-8 452172.66.10-EN · FD 0311 www.dimplex.de
English LIA 0608BWCF M - LIA 1316BWCF M
CAUTION!
!
!
The device must not be installed or operated near a naked
flame, gas-powered devices, electric heaters or any other
comparable source of ignition.
CAUTION!
!
!
The unit must not be installed in a room that is also used as a
workplace or workshop (risk of ignition due to flying sparks).
CAUTION!
!!
When installing the unit, make sure that no ventilation
openings are blocked.
NOTE
º
ºººº
The heat pump is not intended for use above 2000 metres
(mean sea level).
5.2 Outdoor unit
It is advisable to install the outdoor unit close to a wall, on a
foundation separate from the building with a minimum
clearance of 0.3 m on the intake side (Fig. 5.2 + Fig. 5.3).
If a canopy is mounted to protect from direct sunlight, rain
or snow it must not impede the heat exchange of the unit.
In the case of a free-standing installation, the foundation is
to be connected on the intake side, flush with the unit. This
will prevent snow from building up between the foundation
and the evaporator.
The minimum clearances (Fig. 5.2) indicated must be ad-
hered to.
When selecting an installation location, it should be en-
sured where possible that persons are not going to be in-
convenienced by the circulation of warm/cold air or by
noise emissions.
The condensate tray offers various options for condensate
draining. In warmer regions, the condensate can drain from
the device freely. In regions with longer periods of frost,
controlled condensate draining is required.
Abb. 5.2
Abb. 5.3
0,2 m
0,3 m
Heat pump
Condensate drain
Frost line
0,3 m
0,2 m
> 5%
Heat pump
Condensate drain
Frost line

www.dimplex.de 452172.66.10-EN · FD 0311 EN-9
LIA 0608BWCF M - LIA 1316BWCF M English
Abb. 5.4
If the unit is installed on a wall bracket, special attention must
be paid to separate any sound to the building.
If the wall bracket installation option is selected, the following
points must be observed:
Fit rubber buffers
Take the weight of the outdoor unit into account
Ensure that the wall bracket is no higher than 1 m above
the ground
Ensure that minimum clearances are adhered to
Abb. 5.5
When installing several outdoor units next to each other, the
specified distances must be observed. Furthermore, if several
outdoor units are installed, it must be ensured that the air inlets
and outlets do not affect any of the other units.
NOTE
º
ºººº
Structural influences must be observed for installation close
to walls. No windows or doors should be present in the area
surrounding the air outlet of the fan.
NOTE
º
ºººº
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 extended periods of
operation.
CAUTION!
!
!
Incorrect installation, maintenance or repair may increase the
risk of cracks in the installed piping, resulting in property
damage.
CAUTION!
!!
Improper installation of the unit may restrict operation of the
system.
5.2.1 Wall opening, split lines and electric
wires
Please proceed as follows when laying split lines and electric
wires:
Drill a 70 mm opening for the pipework using a core drill.
The opening for the pipework should be slightly inclined
towards the outdoor unit, so that no rainwater can pene-
trate the building.
During installation work, please ensure that connection points
are easily accessible for maintenance and repair purposes.
CAUTION!
!
!
Care must be taken to ensure that the connections and lines
are not subjected to any mechanical loads.
CAUTION!
!
!
Connection lines must not exhibit any mechanical damage.
5.2.2 Wall opening for condensate drain
For the safe drainage of the condensate, the condensate drain
must be positioned in such a way that no frost build-up can oc-
cur. The frost line can vary according to the climatic region. The
regulations of the countries in question must be observed.
When laying the condensate connection, pay attention to the
slope that must be maintained.
>600
>300
Air inlet
>300
2000
Air outlet
Maintenance
area
Air inlet
Wall or obstacle
1,5 m1,5 m
1,5 m1,5 m
2 m2 m
0,0,3 m
0,0,3 m
:DOO
5~7mm
Indoor unit Outdoor unit
aPP
Wall
Indoor unit
Outdoor unit

EN-10 452172.66.10-EN · FD 0311 www.dimplex.de
English LIA 0608BWCF M - LIA 1316BWCF M
5.3 Heat pump installation
conditions:
The refrigerating system described in this manual is filled with
R32. The refrigerant R32 is a colourless, odourless and flamma-
ble gas.
Due to it having a higher density than air, R32 can accumulate
in lower-lying areas without adequate ventilation. At low con-
centrations, symptoms may include dizziness, headache, nau-
sea, and impaired coordination. There is a risk of suffocation at
higher concentrations.
In order to ensure safe operation and, above all, to prevent per-
sonal injury in the event of a leakage, certain criteria apply to the
installation site which must be met in order to minimise possi-
ble hazards to persons, property and the environment.
5.3.1 General installation conditions:
Install the heat pump in rooms with sufficient air circulation.
Do not block off any ventilation openings when installing the
heat pump.
Do not store or use flammable or combustible substances near
the heat pump.
The installation site of the heat pump must not be used as a
workplace or workshop.
Do not expose the device to high temperatures, flames, sparks
or sources of ignition (e.g. electric radiator).
The device must not be installed or operated near a naked
flame, gas-powered devices, electric heaters or any other com-
parable source of ignition.
During installation, ensure that the system is easily accessible
for maintenance and repair purposes.
The minimum amount of space for the installation room must
be observed depending on the filling quantity of the system
(see cap. 5.3.4 on page 11 Minimum room volume).
CAUTION!
!
!
The minimum amount of space for the room must also be
observed when storing the heat pump.
5.3.2 Minimum installation space
requirements:
The heat pump described in this manual is a refrigerant-filled
device that must be installed in accordance with the require-
ments of EN 378-1_4:2016. With regard to the standard, it
must be ensured that the installation room is of a sufficient size
such that the limit values for toxicity and flammability are not
exceeded indoors.
When considering the minimum installation space for the room,
the filling quantity of the system is decisive. Please note that ex-
tending the connection lines of the device can result in a
changed filling quantity of the system. Therefore, check
whether the installation room is suitable, even when taking a
potentially higher refrigerant fill quantity into account. The in-
stallation room is defined as any space that contains refriger-
ant-containing parts (indoor unit, outdoor unit and refrigerant
pipes) or into which refrigerant could be released. Multiple
rooms that have suitable openings (that cannot be closed) be-
tween the individual rooms or which are connected to a com-
mon ventilation supply, return or exhaust system that does not
contain the evaporator or condenser shall be treated as a single
room.
As a general rule, care should be taken during installation work
to keep refrigerant lines to a necessary minimum.
To check the necessary conditions for installation, proceed as
follows:
Determination of the refrigerant fill quantity:
Please note that altering the refrigerant fill quantity may be nec-
essary due to the extension of the connection pipes.
Use the table below in Cap. 5.3.4 on page 11 Minimum room
volume to check whether the installation conditions are suffi-
cient for the operation of the heat pump.

www.dimplex.de 452172.66.10-EN · FD 0311 EN-11
LIA 0608BWCF M - LIA 1316BWCF M English
5.3.3 Toxicity and flammability limit values:
If the refrigerant fill quantity is below 1.842 kg, the toxicity limit
value is the determining factor for the installation conditions.
The fill quantity is the toxicity limit value x room volume.
The toxicity limit value corresponds to the ATEL/ODL values or
the practical limit value, whichever is higher.
R32 ATEL/ODL = 0.30
R32 practical limit = 0.061
Concentration limit (toxicity):
R32 = 1 x (0. 3) = 0. 3 kg per 1 m³ volume
NOTE
º
ºººº
The installer must ensure a room volume of 1 m³ per 0.3 kg of
R32 refrigerant.
LIA 0608 (1.5 kg R32) = minimum room volume 5 m³
LIA 0911 (1.65 kg R32) = minimum room volume 5.50 m³
LIA 1316 (1.84 kg R32) = minimum room volume 6.1 m³
If the refrigerant fill quantity of the system exceeds 1.842 kg,
the flammability limit value is the determining factor for the in-
stallation conditions. It should be noted here that, in contrast to
the toxicity limit value, this relates to the room area.
Calculation of the maximum permissible refrigerant fill quantity
for a given area:
Calculation of the minimum area for a given refrigerant fill
quantity:
Mmax is the maximum permissible fill quantity in a room in kg.
m is the refrigerant fill quantity in the system in kg.
Amin is the required minimum room area in m².
LFL the lower flammability limit (LFL) in kg/m³
A is the room area in m².
h0 is the height factor of the device, according to EN60335-2-
40 = 1.2 m
5.3.4 Minimum room volume
Calculated according to EN378-1_4:2016 and EN60335-2-40,
the following room sizes are obtained (see table) for the respec-
tive pipe length and the resulting fill quantity. Due to the flam-
mability and toxicity of the refrigerant, the following minimum
room sizes must be observed.
The internal unit of the heat pump system is designed in such a
way that all the refrigeration circuit components are located in
the right side of the indoor unit, at a lower edge of 0.6 metres.
The positioning of the refrigeration circuit components defines
the height factor h0 of the unit according to EN 60335-2-40.
This is needed to calculate the minimum area.
= 2,5 x LFL x h0 x A
5
4
1
2
Mmax
A =
2
5
4
m
2,5 x LFL x h0
()
2
min
LIA 0608BWCF M
Pipe length m ≤15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Fill quantity kg 1.5 1.52 1.54 1.56 1.58 1.6 1.62 1.64 1.66 1.68 1.7 1.72 1.74 1.76 1.78 1.8
Minimum room volume toxicity m³5.00 5.07 5.13 5.20 5.27 5.33 5.40 5.47 5.53 5.60 5.67 5.73 5.80 5.87 5.93 6.00
Minimum room volume flammability m³3.26 3.30 3.34 3.39 3.43 3.47 3.52 3.56 3.60 3.65 3.69 3.74 3.78 3.82 3.87 3.91
Minimum room area flammability m²
LIA 0911BWCF M
Pipe length m ≤15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Fill quantity kg 1.65 1.688 1.726 1.764 1.802 1.84 1.878 1.916 1.954 1.992 2.03 2.068 2.106 2.144 2.182 2.22
Minimum room volume toxicity m³5.50 5.63 5.75 5.88 6.01 6.13 6.26 6.39 6.51 6.64 6.77 6.89 7.02 7.15 7.27 7.40
Minimum room volume flammability m³3.58 3.67 3.75 3.83 3.91 4.00 4.08 4.16 4.24 4.33 4.41 4.49 4.57 4.66 4.74 4.82
Minimum room area flammability m²30.02 31.24 32.50 33.77 35.07 36.40 37.75 39.12 40.52 41.94
LIA 1316BWCF (M)
Pipe length m ≤15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Fill quantity kg 1.84 1.878 1.916 1.954 1.992 2.03 2.068 2.106 2.144 2.182 2.22 2.258 2.296 2.334 2.372 2.41
Minimum room volume toxicity m³6.13 6.26 6.39 6.51 6.64 6.77 6.89 7.02 7.15 7.27 7.40 7.53 7.65 7.78 7.91 8.03
Minimum room volume flammability m³4.00 4.08 4.16 4.24 4.33 4.41 4.49 4.57 4.66 4.74 4.82 4.90 4.99 5.07 5.15 5.23
Minimum room area flammability m²30.02 31.24 32.50 33.77 35.07 36.40 37.75 39.12 40.52 41.94 43.39 44.87 46.36 47.89 49.43

EN-12 452172.66.10-EN · FD 0311 www.dimplex.de
English LIA 0608BWCF M - LIA 1316BWCF M
5.4 Installation in coastal areas
If the unit is installed close to the sea, the high salt concentra-
tion can lead to increased corrosion. If necessary, the mainte-
nance intervals must be adapted to the local conditions. The re-
sponsibility for heat pump installation lies with the specialist
system construction company. Local requirements such as
building regulations, static load of the building, wind exposure
etc. must be taken into account.
NOTE
º
ºººº
If the outdoor unit is installed in a coastal area, direct sea wind
must be avoided.
Case 1: If the outdoor unit is installed in a coastal area, direct
sea wind should be avoided. Install the outdoor unit in the op-
posite direction to the sea wind.
Case 2: If the outdoor unit is installed in the direction of the sea
wind, set up a wind guard to catch the sea wind.
The wind guard must be robust enough to catch the sea
wind (e.g. made from concrete).
The height and width of the wind guard must correspond
to at least 150% of the outdoor unit.
A distance of at least 700 mm from the outdoor unit must
be maintained to guarantee sufficient air flow.
NOTE
º
ºººº
Dust or salt soiling on the heat exchanger should be regularly
cleaned (at least once a year) with running water.
NOTE
º
ºººº
The use of heat pumps is safe from a distance of 12 km from
the sea with a maximum salt content of 3.5%
If the heat pump is installed on the rear side of a building facing
away from the sea, the required minimum distance is halved
For waters with low salinity, the following calculation formula
may be used:
The minimum distance if installed on the Baltic Sea with a salt
content of 1.5%, for example, would be 5.14 km. This could be
reduced to 2.5 km if the heat pump was on the rear of the build-
ing facing away from the sea.
CAUTION!
!
!
Incorrect installation, maintenance or repair can result in
damage to property and personal injury.
5.5 Precautions in winter and in
seasonal winds
In snowy areas or extremely cold locations, adequate pro-
tective measures must be taken to guarantee that the unit
continues functioning correctly.
Install the outdoor unit such that snow cannot fall directly
on the unit. If snow collects on the air inlet and freezes,
malfunctions could occur.
When installing the outdoor unit in areas where there is a
lot of snowfall, ensure the unit is installed at least as high as
the level of an average snowfall (average annual snowfall).
If more than 100 mm of snow collects on the outdoor unit,
the snow must be removed prior to operation.
NOTE
º
ºººº
The intake and outlet opening of the outdoor unit should not
be positioned against the wind if possible.
Sea wind
Sea wind
Sea wind
Wind protection
Minimum distance = 12 km x salinity in %
3,5 %

www.dimplex.de 452172.66.10-EN · FD 0311 EN-13
LIA 0608BWCF M - LIA 1316BWCF M English
6 Assembly indoor unit
6.1 General
The following connections need to be established on the indoor
unit (see “Dimension drawing indoor unit” on page 48.)
Flow / return of the heating system
Safety valve outflow
Voltage supply
Split refrigerant pipe
Condensate drain
Hot water pipe connection
Cold water pipe connection
Circulation pipe connection
Expansion vessel (on-site)
NOTE
º
ºººº
Setup and installation must be performed by an authorised
specialist company.
6.2 Opening indoor unit
The cover must be removed to allow access to the inside of the
device.
CAUTION!
!
!
Before opening the unit, ensure that all electric circuits are
disconnected from the power supply.
Four screws on the side must be unscrewed for this. The cover
must then be removed to the front.
NOTE
º
ºººº
When removing the unit cover, it must be taken into account
that the length of the connecting cable between the control
panel in the unit cover and the controller on the contact plate
is only 1.5 m. If the device cover can only be placed further
away than this when it has been removed, the plug
connection on the controller or on the control panel must first
be disconnected.
After removing the cover, the electronics area is freely accessi-
ble.
The contact plate contains the power supply connection termi-
nals, heating contactors and the heat pump manager.
CAUTION!
!
!
Before switching the electric circuits back on, ensure that the
device has been sealed and live parts cannot be touched.
6.3 Connection on heating side
The heating system connections on the indoor unit have a
1 1/4" flat sealing external thread. A spanner must be used to
firmly grip the transitions when making the connections.
There is a hose sleeve on the safety valve for on-site connection
of a plastic hose. This should be fed into a siphon or outflow.
Before connecting the heating water system to the heat pump,
the heating system must be flushed to remove any impurities,
residue from sealants, etc.
CAUTION!
!
!
Any accumulation of deposits in the liquefier may cause the
heat pump to completely break down.
Once the heat pump has been connected to the heating sys-
tem, it must be filled, purged and pressure-tested.
2.
1.
1.
2.
2.

EN-14 452172.66.10-EN · FD 0311 www.dimplex.de
English LIA 0608BWCF M - LIA 1316BWCF M
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.
6.4 Water Quality in Heating
Systems
6.4.1 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
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. 6.1: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.
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

www.dimplex.de 452172.66.10-EN · FD 0311 EN-15
LIA 0608BWCF M - LIA 1316BWCF M English
6.4.2 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.
Fig. 6.2:Limit values for the quality of heating water
Resistance of copper-soldered or welded stainless-steel plate
heat exchangers to the substances present in water:
Notes
"+" = Normally good resistance
"o" = Corrosion problems may arise,particularly if several
factors receive an evaluation of "o"
"-" = Should not be used
NOTE
º
ºººº
The water quality should be checked again after 4 to 6 weeks,
as the quality could change during the first few weeks of
operation due to chemical reactions.
NOTE
º
ºººº
It is mandatory to use hydraulically closed systems. It is not
permissible to use any open hydraulic systems!
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
Saturation Index < -0.2 o o
-0.2 - 0.1 + +
0.1 - 0.2 + o
> 0.2 o o
Filterable materials < 30 + +
> 30 - -
Total hardness < 6 °dGH o/+ o/+
6 - 11 °dGH + +
> 11 °dGH - -
Oxygen (O2)< 0.02 + +
< 0.1 +/o +/o
> 0.1 - -
Nitrite (NO2-)< 0.1 + +
> 0.1 - -
Sulphide (S2-)< 1.0 + +
> 1.0 - -
1. If the limit values in the VDI 2035 are more restrictive, these apply accord-
ingly.
2. 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.

EN-16 452172.66.10-EN · FD 0311 www.dimplex.de
English LIA 0608BWCF M - LIA 1316BWCF M
Hot water outlet
The hot water outlet connection supplies domestic hot water
through the entire building and must be distributed to different
water-consuming outlets as required.
The connection on the indoor unit is a 1 inch external thread
pipe connection.
The domestic hot water cylinder is also equipped with a 3/4
inch internal thread connection for the circulation pipe.
CAUTION!
!
!
Pipe runs should be made as short as possible and oversizing
should be avoided. All pipework should be laid in accordance
with legal requirements to prevent heat loss from the system
and avoid the build up of condensate.
A corresponding purging facility must also be implemented on-
site in the heating circuit.
It is advisable to fit a shut-off device in the return before inte-
grating the indoor unit.
Connecting a second (external) heat generator
To integrate a second (external) heat generator in the heating
water circuit, it is necessary to cut out the thinned material area
underneath the unit cover.
The copper pipe link cable (in the flow direction) before the
electric heating must also be removed. If the electric heating is
to remain in the heating water circuit, the radiator must be
turned approximately 18° -20° towards the cylinder. This is
necessary to ensure that connection can take place without ob-
struction (with pipe bend 28 and cap nut).
approx. 18° - 20°
If the electric heating is to be removed from the heating circuit,
the heating pipes are connected directly to the thread connec-
tions 1 1/4" with a flat sealing connection. In this case, the con-
nected flow pipe should be fixed in the area where the radiator
mounting used to be (weld-free and secure).
Minimum heating water flow rate
The minimum heating water flow rate through the heat pump
must be assured in all operating statuses of the heating system.
CAUTION!
!
!
If the minimum heating water flow rate is undershot, the plate
heat exchanger in the refrigeration circuit can freeze, which
can lead to total damage of the heat pump.
The nominal flow rate is specified depending on the max. flow
temperature in the device information and must be taken into
account during planning. With design temperatures below
30 °C in the flow, the design must be based on the max. volume
flow with 5 K spread for A7/W35.
The specified nominal flow rate (see “Device information” on
page 31.) must be assured in all operating states. A built-in flow
rate sensor is used only for switching off the heat pump in the
event of an unusual and abrupt drop in the heating water flow
rate and not for monitoring and fusing the nominal flow rate.
Frost protection
If the indoor unit is installed where there is a risk of frost, manual
drainage must be provided where required. The frost protection
function of the heat pump manager is active whenever the heat
pump manager and the heat circulating pump are ready for op-
eration. The system must be drained if the heat pump is taken
out of service or in the event of a power failure. The hydraulic
network should be operated with suitable frost protection if
heat pump systems are implemented in buildings where a
power failure cannot be detected (e.g. holiday homes).
** approx. 18° - 20°
**
Copper pipe link cable

www.dimplex.de 452172.66.10-EN · FD 0311 EN-17
LIA 0608BWCF M - LIA 1316BWCF M English
7 Connecting the pipework
and cables to the outdoor
unit
This chapter describes the refrigerant pipe connections and the
electrical cable connections on the outdoor unit.
7.1 Refrigerant pipes
CAUTION!
!
!
Work on the system must only be performed by authorised
and qualified after-sales service technicians.
Certain requirements with regard to pipe length and rise must
be complied with when installing refrigerant pipes. Once all re-
quirements have been fulfilled, certain preparations must be
made.
Once these are complete, the connecting pipe from the out-
door unit to the indoor unit can be connected.
Make sure that no foreign substances get into the refrigerant
lines during installation work. Furthermore, make sure that no
oxygen gets into the refrigeration circuit. The connection lines
must be evacuated. The installation of piping should be re-
stricted to the minimum possible.
During installation work, please ensure that the connections
and lines are not subjected to any mechanical loads. The refrig-
erant lines must be protected from damage to prevent leakage
and the associated escape of refrigerant. All connection points
between the outdoor and indoor unit must be easily accessible
for maintenance and repair purposes.
After completion of the pipe system, check all pipes for leaks
using suitable means and only carry out leakage tightness tests
with dry nitrogen. When carrying out the leakage tightness test,
never apply more pressure to the system than is specified in the
instructions and on the type plates.
CAUTION!
!
!
All installation work for the pipe system must be carried out by
specialist personnel.
CAUTION!
!
!
Incorrect installation, maintenance or repair of this device
may increase the risk of damage to property or personal
injury.
CAUTION!
!!
Connector surfaces must be checked for cleanliness before
assembly and, if necessary, cleaned with the aid of suitable
agents.
CAUTION!
!
!
Work on the device must be subject to local and national
standards.
CAUTION!
!
!
Always wear adequate personal protective equipment
(protective gloves, safety glasses, etc.) when working with
refrigerant.
CAUTION!
!
!
Work involving R32 refrigerant must only be carried out by
experienced and adequately trained personnel.
CAUTION!
!
!
Only equipment and tools intended for the product, pressure
and temperatures may be used for work on the unit.
CAUTION!
!
!
When working on the device, the use of spark-generating
machines should be avoided.
7.1.1 Requirements for the pipe length
and rise
The standard pipe length is 15 m. Up to a length of 15 m, no ad-
ditional refrigerant filling is required. For pipe lengths over 15 m,
the system must be filled with additional refrigerant in accord-
ance with the table.
*Example: When installing the 14 kW model at a distance of 30
m, 570 g refrigerant must be added according to the following
calculation: (30-15) x 38 g = 570 g
NOTE
º
ºººº
For filling with additional refrigerant, see Cap. 5.3 on page 10.
Model
Pipe size
in mm (inch)
(Diameter: )
Length A (m) Rise B (m) *Additional
refrigerant
(g/m)
Gas Liquid Normal Min. Max. Normal Max.
6 kW 15.9
(5/8")
6.35
(1/4") 15 3 30 0 15 20
10 kW 15.9
(5/8")
9.52
(3/8") 15 3 30 0 15 38
14 kW 15.9
(5/8")
9.52
(3/8") 15 3 30 0 15 38
Additional
refrigerant Model
Total length of the
pipe for liquid
≤15 m > 15 m
Total additional refrigerant 6 kW 0 g (A-15) x 20 g
Total additional refrigerant 10 kW 0 g (A-15) x 38 g
Total additional refrigerant 14 kW 0 g (A-15) x 38 g
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B

EN-18 452172.66.10-EN · FD 0311 www.dimplex.de
English LIA 0608BWCF M - LIA 1316BWCF M
NOTE
º
ºººº
If the indoor unit is mounted 4 m or more metres higher or
lower than the outdoor unit, a cooling technology specialist
must perform a separate check to ensure that the devices for
conveying the oil up and down the pipes have been installed
correctly in the split line.
NOTE
º
ºººº
The rated output of the device may vary depending on the
split line length.
CAUTION!
!
!
Incorrect filling with refrigerant could lead to faults during
operation.
1) Production operation (see model name label)
2) Installation operation (where possible, attach alongside the
maintenance connections for adding or removing refriger-
ant)
3) Total filling (1, + 2,)
CAUTION!
!
!
If the filling quantity changes, document it in an easily visible
place (e.g. filling quantity on the type plate). Do not add more
than the specified amount of refrigerant to the system.
7.1.2 Preparation for pipework
The preparation of the pipework takes place in five steps. One
main cause of refrigerant leaks is incorrect flanging. Flanging
must be carried out carefully and according to the following
steps.
Step 1: Cutting pipes and cables
Use the installation kit for pipework or the pipes purchased
from your local dealer.
Measure the distance between the indoor and outdoor
unit.
Cut the pipes slightly longer than the measured distance.
Step 2: Removing burrs
Remove all burrs from the interface of the pipework.
Hold the pipe end downwards so that no burrs can fall into
the pipe.
Step 3: Inserting screw nuts
Remove the screw nuts on the outdoor unit.
Insert the screw nuts into the deburred pipe.
No nuts can be inserted into the pipe after flanging.
Step 4: Flanging
Flanging must be carried out as follows with a flanging tool
for R32 refrigerant as shown in the figure.
&RSSHUSLSH
90qTilted Uneven Raw
3LSH
Reamer
Hold facing
downwards
6FUHZQXW
Copper pipe
5DLO
Copper pipe
Clamp Red arrow marking
Cone
Bracket
Handle
Rail
"A"