Daikin EBLQ05C2V3, EBLQ07C2V3 Installer reference guide
Installer reference guide
Daikin Altherma monobloc compact outdoor unit
EBLQ05C2V3
EBLQ07C2V3
Installer reference guide
Daikin Altherma monobloc compact outdoor unit
English
Table of contents
Table of contents
1 General safety precautions 2
1.1 About the documentation .......................................................... 2
1.1.1 Meaning of warnings and symbols.............................. 2
1.2 For the installer.......................................................................... 3
1.2.1 General ....................................................................... 3
1.2.2 Installation site ............................................................ 3
1.2.3 Refrigerant .................................................................. 3
1.2.4 Brine............................................................................ 4
1.2.5 Water .......................................................................... 4
1.2.6 Electrical ..................................................................... 5
2 About the documentation 5
2.1 About this document.................................................................. 5
2.2 Installer reference guide at a glance ......................................... 6
3 About the box 6
3.1 Overview: About the box ........................................................... 6
3.2 Outdoor unit............................................................................... 6
3.2.1 To unpack the outdoor unit ......................................... 6
3.2.2 To remove the accessories from the outdoor unit....... 6
4 About the units and options 7
4.1 Overview: About the units and options...................................... 7
4.2 Identification .............................................................................. 7
4.2.1 Identification label: Outdoor unit ................................. 7
4.3 Combining units and options ..................................................... 7
4.3.1 Possible options for the outdoor unit........................... 7
5 Preparation 7
5.1 Overview: Preparation............................................................... 7
5.2 Preparing the installation site .................................................... 7
5.2.1 Installation site requirements of the outdoor unit ........ 7
5.2.2 Additional installation site requirements of the
outdoor unit in cold climates ....................................... 8
5.3 Preparing water piping .............................................................. 9
5.3.1 Water circuit requirements .......................................... 9
5.3.2 Formula to calculate the expansion vessel pre-
pressure ...................................................................... 9
5.3.3 To check the water volume and flow rate ................... 9
5.3.4 Changing the pre-pressure of the expansion vessel... 10
5.3.5 To check the water volume: Examples ....................... 10
5.4 Preparing electrical wiring ......................................................... 11
5.4.1 About preparing electrical wiring................................. 11
5.4.2 About preferential kWh rate power supply .................. 11
5.4.3 Overview of electrical connections except external
actuators ..................................................................... 11
5.4.4 Overview of electrical connections for external and
internal actuators ........................................................ 12
6.5 Connecting the electrical wiring.................................................. 16
6.5.1 About connecting the electrical wiring.......................... 16
6.5.2 Precautions when connecting the electrical wiring ...... 16
6.5.3 Guidelines when connecting the electrical wiring ........ 16
6.5.4 To connect the electrical wiring on the outdoor unit..... 16
6.5.5 To connect the main power supply .............................. 17
6.5.6 To connect the remote outdoor sensor ........................ 18
6.5.7 To connect the shut-off valve....................................... 18
6.6 Finishing the outdoor unit installation ......................................... 18
6.6.1 To close the outdoor unit ............................................. 18
7 Commissioning 18
7.1 Overview: Commissioning.......................................................... 18
7.2 Precautions when commissioning .............................................. 18
7.3 Checklist before commissioning................................................. 19
8 Hand-over to the user 19
9 Maintenance and service 19
9.1 Overview: Maintenance and service .......................................... 19
9.2 Maintenance safety precautions................................................. 19
9.2.1 Opening the outdoor unit ............................................. 19
9.3 Checklist for yearly maintenance of the outdoor unit ................. 19
10 Troubleshooting 20
10.1 Overview: Troubleshooting......................................................... 20
11 Disposal 20
11.1 Overview: Disposal..................................................................... 20
11.2 To pump down............................................................................ 20
11.3 To start and stop forced cooling ................................................. 21
12 Technical data 22
12.1 Piping diagram: Outdoor unit...................................................... 22
12.2 Wiring diagram: Outdoor unit ..................................................... 23
12.3 ESP curve: Outdoor unit............................................................. 24
13 Glossary 25
1 General safety precautions
1.1 About the documentation
▪ The original documentation is written in English. All other
languages are translations.
▪ The precautions described in this document cover very important
topics, follow them carefully.
▪ The installation of the system, and all activities described in the
installation manual and in the installer reference guide MUST be
performed by an authorised installer.
6 Installation 12
6.1 Overview: Installation ................................................................ 12
6.2 Opening the units ...................................................................... 12
6.2.1 About opening the units .............................................. 12
6.2.2 To open the outdoor unit............................................. 12
6.2.3 To open the switch box cover of the outdoor unit ....... 12
6.3 Mounting the outdoor unit.......................................................... 12
6.3.1 About mounting the outdoor unit................................. 12
6.3.2 Precautions when mounting the outdoor unit.............. 13
6.3.3 To provide the installation structure ............................ 13
6.3.4 To install the outdoor unit............................................ 14
6.3.5 To provide drainage .................................................... 14
6.3.6 To prevent the outdoor unit from falling over .............. 15
6.4 Connecting water piping............................................................ 15
6.4.1 About connecting the water piping.............................. 15
6.4.2 Precautions when connecting the water piping........... 15
6.4.3 To connect the water piping........................................ 15
6.4.4 To insulate the water piping ........................................ 16
Installer reference guide
2
1.1.1 Meaning of warnings and symbols
DANGER
Indicates a situation that results in death or serious injury.
DANGER: RISK OF ELECTROCUTION
Indicates a situation that could result in electrocution.
DANGER: RISK OF BURNING
Indicates a situation that could result in burning because of
extreme hot or cold temperatures.
DANGER: RISK OF EXPLOSION
Indicates a situation that could result in explosion.
Daikin Altherma monobloc compact outdoor unit
EBLQ05+07C2V3
4P598847-1 – 2019.10
1 General safety precautions
WARNING
Indicates a situation that could result in death or serious
injury.
WARNING: FLAMMABLE MATERIAL
CAUTION
Indicates a situation that could result in minor or moderate
injury.
NOTICE
Indicates a situation that could result in equipment or
property damage.
INFORMATION
Indicates useful tips or additional information.
Symbol Explanation
Before installation, read the installation and
operation manual, and the wiring instruction sheet.
Before performing maintenance and service tasks,
read the service manual.
For more information, see the installer and user
reference guide.
1.2 For the installer
1.2.1 General
If you are NOT sure how to install or operate the unit, contact your
dealer.
NOTICE
Improper installation or attachment of equipment or
accessories could result in electric shock, short-circuit,
leaks, fire or other damage to the equipment. Only use
accessories, optional equipment and spare parts made or
approved by Daikin.
WARNING
Make sure installation, testing and applied materials
comply with applicable legislation (on top of the
instructions described in the Daikin documentation).
CAUTION
Wear adequate personal protective equipment (protective
gloves, safety glasses,…) when installing, maintaining or
servicing the system.
WARNING
Tear apart and throw away plastic packaging bags so that
nobody, especially children, can play with them. Possible
risk: suffocation.
DANGER: RISK OF BURNING
▪ Do NOT touch the refrigerant piping, water piping or
internal parts during and immediately after operation. It
could be too hot or too cold. Give it time to return to
normal temperature. If you must touch it, wear
protective gloves.
▪ Do NOT touch any accidental leaking refrigerant.
WARNING
Provide adequate measures to prevent that the unit can be
used as a shelter by small animals. Small animals that
make contact with electrical parts can cause malfunctions,
smoke or fire.
CAUTION
Do NOT touch the air inlet or aluminium fins of the unit.
NOTICE
▪ Do NOT place any objects or equipment on top of the
unit.
▪ Do NOT sit, climb or stand on the unit.
NOTICE
Works executed on the outdoor unit are best done under
dry weather conditions to avoid water ingress.
In accordance with the applicable legislation, it might be necessary
to provide a logbook with the product containing at least: information
on maintenance, repair work, results of tests, stand-by periods,…
Also, at least, following information MUST be provided at an
accessible place at the product:
▪ Instructions for shutting down the system in case of an emergency
▪ Name and address of fire department, police and hospital
▪ Name, address and day and night telephone numbers for
obtaining service
In Europe, EN378 provides the necessary guidance for this logbook.
1.2.2 Installation site
▪ Provide sufficient space around the unit for servicing and air
circulation.
▪ Make sure the installation site withstands the weight and vibration
of the unit.
▪ Make sure the area is well ventilated. Do NOT block any
ventilation openings.
▪ Make sure the unit is level.
Do NOT install the unit in the following places:
▪ In potentially explosive atmospheres.
▪ In places where there is machinery that emits electromagnetic
waves. Electromagnetic waves may disturb the control system,
and cause malfunction of the equipment.
▪ In places where there is a risk of fire due to the leakage of
flammable gases (example: thinner or gasoline), carbon fibre,
ignitable dust.
▪ In places where corrosive gas (example: sulphurous acid gas) is
produced. Corrosion of copper pipes or soldered parts may cause
the refrigerant to leak.
1.2.3 Refrigerant
If applicable. See the installation manual or installer reference guide
of your application for more information.
NOTICE
Make sure refrigerant piping installation complies with
applicable legislation. In Europe, EN378 is the applicable
standard.
NOTICE
Make sure the field piping and connections are NOT
subjected to stress.
EBLQ05+07C2V3
Daikin Altherma monobloc compact outdoor unit
4P598847-1 – 2019.10
Installer reference guide
3
1 General safety precautions
WARNING
During tests, NEVER pressurize the product with a
pressure higher than the maximum allowable pressure (as
indicated on the nameplate of the unit).
WARNING
Take sufficient precautions in case of refrigerant leakage. If
refrigerant gas leaks, ventilate the area immediately.
Possible risks:
▪ Excessive refrigerant concentrations in a closed room
can lead to oxygen deficiency.
▪ Toxic gas may be produced if refrigerant gas comes
into contact with fire.
DANGER: RISK OF EXPLOSION
Pump down – Refrigerant leakage. If you want to pump
down the system, and there is a leak in the refrigerant
circuit:
▪ Do NOT use the unit's automatic pump down function,
with which you can collect all refrigerant from the
system into the outdoor unit. Possible consequence:
Self-combustion and explosion of the compressor
because of air going into the operating compressor.
▪ Use a separate recovery system so that the unit's
compressor does NOT have to operate.
WARNING
ALWAYS recover the refrigerant. Do NOT release them
directly into the environment. Use a vacuum pump to
evacuate the installation.
NOTICE
After all the piping has been connected, make sure there is
no gas leak. Use nitrogen to perform a gas leak detection.
NOTICE
▪ To avoid compressor breakdown, do NOT charge more
than the specified amount of refrigerant.
▪ When the refrigerant system is to be opened,
refrigerant MUST be treated according to the applicable
legislation.
WARNING
Make sure there is no oxygen in the system. Refrigerant
may only be charged after performing the leak test and the
vacuum drying.
▪ In case recharge is required, see the nameplate of the unit. It
states the type of refrigerant and necessary amount.
▪ The unit is factory charged with refrigerant and depending on pipe
sizes and pipe lengths some systems require additional charging
of refrigerant.
▪ Only use tools exclusively for the refrigerant type used in the
system, this to ensure pressure resistance and prevent foreign
materials from entering into the system.
▪ Charge the liquid refrigerant as follows:
If Then
A siphon tube is present
(i.e., the cylinder is marked with
"Liquid filling siphon attached")
Charge with the cylinder upright.
If Then
A siphon tube is NOT present Charge with the cylinder upside
down.
▪ Open refrigerant cylinders slowly.
▪ Charge the refrigerant in liquid form. Adding it in gas form may
prevent normal operation.
CAUTION
When the refrigerant charging procedure is done or when
pausing, close the valve of the refrigerant tank
immediately. If the valve is NOT closed immediately,
remaining pressure might charge additional refrigerant.
Possible consequence: Incorrect refrigerant amount.
1.2.4 Brine
If applicable. See the installation manual or installer reference guide
of your application for more information.
WARNING
The selection of the brine MUST be in accordance with the
applicable legislation.
WARNING
Take sufficient precautions in case of brine leakage. If
brine leaks, ventilate the area immediately and contact
your local dealer.
WARNING
The ambient temperature inside the unit can get much
higher than that of the room, e.g. 70°C. In case of a brine
leak, hot parts inside the unit can create a hazardous
situation.
WARNING
The use and installation of the application MUST comply
with the safety and environmental precautions specified in
the applicable legislation.
1.2.5 Water
If applicable. See the installation manual or installer reference guide
of your application for more information.
NOTICE
Make sure water quality complies with EU directive
98/83EC.
Installer reference guide
4
Daikin Altherma monobloc compact outdoor unit
EBLQ05+07C2V3
4P598847-1 – 2019.10
2 About the documentation
1.2.6 Electrical
DANGER: RISK OF ELECTROCUTION
▪ Turn OFF all power supply before removing the
switch box cover, connecting electrical wiring or
touching electrical parts.
▪ Disconnect the power supply for more than 1minute,
and measure the voltage at the terminals of main circuit
capacitors or electrical components before servicing.
The voltage MUST be less than 50 V DC before you
can touch electrical components. For the location of the
terminals, see the wiring diagram.
▪ Do NOT touch electrical components with wet hands.
▪ Do NOT leave the unit unattended when the service
cover is removed.
WARNING
If NOT factory installed, a main switch or other means for
disconnection, having a contact separation in all poles
providing full disconnection under overvoltage category III
condition, MUST be installed in the fixed wiring.
WARNING
▪ ONLY use copper wires.
▪ Make sure the field wiring complies with the applicable
legislation.
▪ All field wiring MUST be performed in accordance with
the wiring diagram supplied with the product.
▪ NEVER squeeze bundled cables and make sure they
do NOT come in contact with the piping and sharp
edges. Make sure no external pressure is applied to the
terminal connections.
▪ Make sure to install earth wiring. Do NOT earth the unit
to a utility pipe, surge absorber, or telephone earth.
Incomplete earth may cause electrical shock.
▪ Make sure to use a dedicated power circuit. NEVER
use a power supply shared by another appliance.
▪ Make sure to install the required fuses or circuit
breakers.
▪ Make sure to install an earth leakage protector. Failure
to do so may cause electric shock or fire.
▪ When installing the earth leakage protector, make sure
it is compatible with the inverter (resistant to high
frequency electric noise) to avoid unnecessary opening
of the earth leakage protector.
CAUTION
When connecting the power supply, the earth connection
must be made before the current-carrying connections are
established. When disconnecting the power supply, the
current-carrying connections must be separated before the
earth connection is. The length of the conductors between
the power supply stress relief and the terminal block itself
must be as such that the current-carrying wires are
tautened before the earth wire is in case the power supply
is pulled loose from the stress relief.
NOTICE
Precautions when laying power wiring:
▪ Do NOT connect wiring of different thicknesses to the
power terminal block (slack in the power wiring may
cause abnormal heat).
▪ When connecting wiring which is the same thickness,
do as shown in the figure above.
▪ For wiring, use the designated power wire and connect
firmly, then secure to prevent outside pressure being
exerted on the terminal board.
▪ Use an appropriate screwdriver for tightening the
terminal screws. A screwdriver with a small head will
damage the head and make proper tightening
impossible.
▪ Over-tightening the terminal screws may break them.
WARNING
▪ After finishing the electrical work, confirm that each
electrical component and terminal inside the electrical
components box is connected securely.
▪ Make sure all covers are closed before starting up the
unit.
NOTICE
Only applicable if the power supply is three‑phase, and the
compressor has an ON/OFF starting method.
If there exists the possibility of reversed phase after a
momentary black out and the power goes on and off while
the product is operating, attach a reversed phase
protection circuit locally. Running the product in reversed
phase can break the compressor and other parts.
2 About the documentation
2.1 About this document
Target audience
Authorised installers
Documentation set
This document is part of a documentation set. The complete set
consists of:
▪ General safety precautions:
▪ Safety instructions that you must read before installing
▪ Format: Paper (in the box of the outdoor unit)
▪ Outdoor unit installation manual:
▪ Installation instructions
▪ Format: Paper (in the box of the outdoor unit)
▪ Installer reference guide:
▪ Preparation of the installation, good practices, reference data,…
▪ Format: Digital files on http://www.daikineurope.com/support-
and-manuals/product-information/
Latest revisions of the supplied documentation may be available on
the regional Daikin website or via your dealer.
The original documentation is written in English. All other languages
are translations.
EBLQ05+07C2V3
Daikin Altherma monobloc compact outdoor unit
4P598847-1 – 2019.10
Installer reference guide
5
3 About the box
1
2
Technical engineering data
▪ A subset of the latest technical data is available on the regional
Daikin website (publicly accessible).
▪ The full set of latest technical data is available on the Daikin
Business Portal (authentication required).
Online tools
In addition to the documentation set, some online tools are available
for installers:
▪ Heating Solutions Navigator
▪ Digital toolbox that offers a variety of tools to facilitate the
installation and configuration of heating systems.
▪ To access Heating Solutions Navigator, registration to the
Stand By Me platform is required. For more information, see
https://professional.standbyme.daikin.eu.
▪ Daikin e-Care
▪ Mobile app for installers and service technicians that allows you
to register, configure and troubleshoot heating systems.
▪ The mobile app can be downloaded for iOS and Android
devices using the QR codes below. Registration to the Stand
By Me platform is required to access the app.
App Store Google Play
▪ At delivery, the unit MUST be checked for damage. Any damage
MUST be reported immediately to the claims agent of the carrier.
▪ Bring the packed unit as close as possible to its final installation
position to prevent damage during transport.
▪ Prepare the path along which you want to bring the unit inside in
advance.
3.2 Outdoor unit
3.2.1 To unpack the outdoor unit
2.2 Installer reference guide at a glance
Chapter Description
General safety
precautions
About the documentation What documentation exists for the
About the box How to unpack the units and remove
About the units and
options
Preparation What to do and know before going
Installation What to do and know to install the
Hand‑over to the user What to give and explain to the user
Commissioning What to do and know to commission the
Maintenance and service How to maintain and service the units
Disposal How to dispose of the system
Technical data Specifications of the system
Glossary Definition of terms
Safety instructions that you must read
before installing
installer
their accessories
▪ How to identify the units
▪ Possible combinations of units and
options
on‑site
system
system after it is configured
3 About the box
3.2.2 To remove the accessories from the outdoor unit
1 Open the outdoor unit.
2 Remove the accessories.
3.1 Overview: About the box
This chapter describes what you have to do after the box with the
outdoor unit is delivered on-site.
Keep the following in mind:
Installer reference guide
6
Daikin Altherma monobloc compact outdoor unit
EBLQ05+07C2V3
4P598847-1 – 2019.10
1× 1× 1× 1×
a b c d
2× 1×2×
fe g
a General safety precautions
≤1200
>250/400
>250/400
>250
>350
>350
(mm)(mm)
a
b
b
a
b Addendum book for optional equipment
c Outdoor unit installation manual
d Operation manual
e Sealing ring for shut-off valve
f Shut-off valve
g Unit mounting plate
4 About the units and options
4.3 Combining units and options
4.3.1 Possible options for the outdoor unit
Remote outdoor sensor (EKRSC1)
By default the sensor inside the outdoor unit will be used to measure
the outdoor temperature.
As an option the remote outdoor sensor can be installed to measure
the outdoor temperature on another location (e.g. to avoid direct
sunlight) to have an improved system behaviour.
For installation instructions, see the installation manual of the remote
outdoor sensor.
5 Preparation
4 About the units and options
4.1 Overview: About the units and options
This chapter contains information about:
▪ Identifying the outdoor unit
▪ Combining the outdoor unit with options
4.2 Identification
NOTICE
When installing or servicing several units at the same time,
make sure NOT to switch the service panels between
different models.
4.2.1 Identification label: Outdoor unit
Location
5.1 Overview: Preparation
This chapter describes what you have to do and know before going
on-site.
It contains information about:
▪ Preparing the installation site
▪ Preparing the water piping
▪ Preparing the electrical wiring
5.2 Preparing the installation site
Do NOT install the unit in places often used as work place. In case
of construction works (e.g. grinding works) where a lot of dust is
created, the unit MUST be covered.
Choose an installation location with sufficient space for carrying the
unit in and out of the site.
5.2.1 Installation site requirements of the outdoor unit
INFORMATION
Also read the precautions and requirements in the
"General safety precautions" chapter.
Mind the following spacing guidelines:
Model identification
Example: EBLQ05C2V3
Code Explanation
E European monobloc outdoor heat pump
B Reversible (heating+cooling)
L Low water temperature – ambient zone: −10~
−25°C
Q Refrigerant R410A
05 Capacity class
C2 Model series
V3 Power supply
EBLQ05+07C2V3
Daikin Altherma monobloc compact outdoor unit
4P598847-1 – 2019.10
a Air outlet
b Air inlet
INFORMATION
If shut-off valves are installed on the unit, provide a
minimum space of 400mm at the air inlet side. If shut‑off
valves are NOT installed on the unit, provide a minimum
space of 250mm.
The maximum allowable distance between outdoor unit and
domestic hot water tank is 10m.
NOTICE
▪ Do NOT stack the units on each other.
▪ Do NOT hang the unit on a ceiling.
Installer reference guide
7
5 Preparation
b
a
b
c
b
c
a
a
b
c
d
c
d
c
a
b
c
d
Strong winds (≥18 km/h) blowing against the outdoor unit’s air outlet
causes short circuit (suction of discharge air). This may result in:
▪ deterioration of the operational capacity;
▪ frequent frost acceleration in heating operation;
▪ disruption of operation due to decrease of low pressure or
increase of high pressure;
▪ a broken fan (if a strong wind blows continuously on the fan, it
may start rotating very fast, until it breaks).
It is recommended to install a baffle plate when the air outlet is
exposed to wind.
It is recommended to install the outdoor unit with the air inlet facing
the wall and NOT directly exposed to the wind.
a Baffle plate
b Prevailing wind direction
c Air outlet
Do NOT install the unit in the following places:
▪ Sound sensitive areas (e.g. near a bedroom), so that the
operation noise will cause no trouble.
Note: If the sound is measured under actual installation
conditions, the measured value might be higher than the sound
pressure level mentioned in Sound spectrum in the data book due
to environmental noise and sound reflections.
▪ In places where a mineral oil mist, spray or vapour may be
present in the atmosphere. Plastic parts may deteriorate and fall
off or cause water leakage.
It is NOT recommended to install the unit in the following places
because it may shorten the life of the unit:
▪ Where the voltage fluctuates a lot
▪ In vehicles or vessels
▪ Where acidic or alkaline vapour is present
Seaside installation. Make sure the outdoor unit is NOT directly
exposed to sea winds. This is to prevent corrosion caused by high
levels of salt in the air, which might shorten the life of the unit.
Install the outdoor unit away from direct sea winds.
Example: Behind the building.
Installer reference guide
8
If the outdoor unit is exposed to direct sea winds, install a
windbreaker.
▪ Height of windbreaker≥1.5×height of outdoor unit
▪ Mind the service space requirements when installing the
windbreaker.
a Sea wind
b Building
c Outdoor unit
d Windbreaker
The outdoor unit is designed for outdoor installation only, and for
ambient temperatures ranging 10~43°C in cooling mode, –25~25°C
in space heating mode, and –25~35°C in domestic hot water
operation mode.
5.2.2 Additional installation site requirements of the outdoor unit in cold climates
Protect the outdoor unit against direct snowfall and take care that the
outdoor unit is NEVER snowed up.
a Snow cover or shed
b Pedestal
c Prevailing wind direction
d Air outlet
In any case, provide at least 300mm of free space below the unit.
Additionally, make sure the unit is positioned at least 100mm above
the maximum expected level of snow. See "6.3 Mounting the
outdoor unit"[412] for more details.
In heavy snowfall areas it is very important to select an installation
site where the snow will NOT affect the unit. If lateral snowfall is
possible, make sure that the heat exchanger coil is NOT affected by
the snow. If necessary, install a snow cover or shed and a pedestal.
Daikin Altherma monobloc compact outdoor unit
EBLQ05+07C2V3
4P598847-1 – 2019.10
5 Preparation
c
d
a b
5.3 Preparing water piping
5.3.1 Water circuit requirements
INFORMATION
Also read the precautions and requirements in the
"General safety precautions" chapter.
NOTICE
In case of plastic pipes, make sure they are fully oxygen
diffusion tight according to DIN 4726. The diffusion of
oxygen into the piping can lead to excessive corrosion.
▪ Connecting piping – Legislation. Make all piping connections in
accordance with the applicable legislation and the instructions in
the "Installation" chapter, respecting the water inlet and outlet.
▪ Connecting piping – Force. Do NOT use excessive force when
connecting the piping. Deformation of the piping can cause
malfunctioning of the unit.
▪ Connecting piping – Tools. Only use appropriate tooling to
handle brass, which is a soft material. If NOT, pipes will get
damaged.
▪ Connecting piping – Air, moisture, dust. If air, moisture or dust
gets into the circuit, problems may occur. To prevent this:
▪ Only use clean pipes
▪ Hold the pipe end downwards when removing burrs.
▪ Cover the pipe end when inserting it through a wall, to prevent
dust and/or particles from entering the pipe.
▪ Use a decent thread sealant to seal connections.
NOTICE
If glycol is present in the system, make sure the thread
sealant used is resistant to glycol.
▪ Closed circuit. Use the outdoor unit ONLY in a closed water
system. Using the system in an open water system will lead to
excessive corrosion.
▪ Piping length. It is recommended to avoid long runs of piping
between the domestic hot water tank and the hot water end point
(shower, bath,…) and to avoid dead ends.
▪ Piping diameter. Select the water piping diameter in relation to
the required water flow and the available external static pressure
of the pump. See "12Technical data"[422] for the external static
pressure curves of the outdoor unit.
▪ Water flow. It is required to guarantee a minimum flow of 13l/min.
When the flow is lower, the system will stop operation and display
error 7H.
Minimum required flow rate
05+07 models 13l/min
▪ Field supply components – Water and glycol. Only use
materials that are compatible with the water (and, if applicable,
glycol) used in the system, and with the materials used in the
outdoor unit.
▪ Field supply components – Water pressure and temperature.
Check that all components in the field piping can withstand the
water pressure and water temperature.
▪ Water pressure. The maximum water pressure is 3bar. Provide
adequate safeguards in the water circuit to ensure that the
maximum pressure is NOT exceeded.
▪ Water temperature. All installed piping and piping accessories
(valve, connections,…) MUST withstand the following
temperatures:
Water circuit Water temperature
Space heating 65°C
Domestic hot water 89°C
▪ Drainage – Low points. Provide drain taps at all low points of the
system in order to allow complete drainage of the water circuit.
▪ Drainage – Pressure relief valve. Provide a proper drain for the
pressure relief valve to avoid water coming into contact with
electrical parts.
▪ Air vents. Provide air vents at all high points of the system, which
must also be easily accessible for servicing. The outdoor unit has
a manual air purge valve. The backup heater (option) has an
automatic air purge valve. Check that automatic air purge valves
are NOT tightened too much, so that the automatic release of air
from the water circuit is possible.
▪ Zn-coated parts. Never use zinc coated parts in the water circuit.
Because the internal water circuit of the unit uses copper piping,
excessive corrosion may occur.
▪ Non-brass metallic piping. When using non-brass metallic
piping, insulate the brass and non-brass properly so that they do
NOT make contact with each other. This to prevent galvanic
corrosion.
▪ Filter. It is strongly recommended to install an additional filter on
the heating water circuit. Especially to remove metallic particles
from foul heating piping, it is recommended to use a magnetic or
cyclone filter, which can remove small particles. Small particles
may damage the unit and will NOT be removed by the standard
filter of the heat pump system.
▪ Thermostatic mixing valves. In accordance with the applicable
legislation, it may be necessary to install thermostatic mixing
valves.
▪ Hygienic measures. The installation must be in compliance with
the applicable legislation and may require additional hygienic
installation measures.
▪ Recirculation pump. In accordance with the applicable
legislation, it may be required to connect a recirculation pump in
between the hot water end point and the recirculation connection
of the domestic hot water tank.
a Recirculation connection
b Hot water connection
c Shower
d Recirculation pump
5.3.2 Formula to calculate the expansion vessel pre-pressure
The pre-pressure (Pg) of the vessel depends on the installation
height difference (H):
Pg=0.3+(H/10) (bar)
5.3.3 To check the water volume and flow rate
The outdoor unit has an expansion vessel of 7litre with a factory-set
pre-pressure of 1bar.
To make sure that the unit operates properly:
▪ You must check the minimum and maximum water volume.
▪ You might need to adjust the pre-pressure of the expansion
vessel.
EBLQ05+07C2V3
Daikin Altherma monobloc compact outdoor unit
4P598847-1 – 2019.10
Installer reference guide
9
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