Daikin Altherma ERHQ011-014-016BA How to use

Installer reference guide
Daikin Altherma – Low temperature split English
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Installer reference guide
Daikin Altherma – Low temperature split
ERHQ011-014-016BA
ERLQ011-014-016CA
EHBH11+16CBV

Table of contents
Installer reference guide
2
ERHQ+ERLQ011~016 + EHBH11+16CBV
Daikin Altherma – Low temperature split
4P449970-1 – 2016.06
Table of contents
1 General safety precautions 3
1.1 About the documentation .......................................................... 3
1.1.1 Meaning of warnings and symbols.............................. 4
1.2 For the installer.......................................................................... 4
1.2.1 General ....................................................................... 4
1.2.2 Installation site ............................................................ 4
1.2.3 Refrigerant .................................................................. 5
1.2.4 Brine............................................................................ 5
1.2.5 Water .......................................................................... 5
1.2.6 Electrical ..................................................................... 6
2 About the documentation 6
2.1 About this document.................................................................. 6
2.2 Installer reference guide at a glance ......................................... 7
3 About the box 7
3.1 Overview: About the box ........................................................... 7
3.2 Outdoor unit............................................................................... 7
3.2.1 To unpack the outdoor unit ......................................... 7
3.2.2 To handle the outdoor unit.......................................... 7
3.2.3 To remove the accessories from the outdoor unit....... 8
3.3 Indoor unit ................................................................................. 8
3.3.1 To unpack the indoor unit ........................................... 8
3.3.2 To remove the accessories from the indoor unit......... 8
3.4 Backup heater ........................................................................... 9
3.4.1 To unpack the backup heater ..................................... 9
3.4.2 To remove the accessories from the backup heater... 9
4 About the units and options 9
4.1 Overview: About the units and options...................................... 9
4.2 Identification .............................................................................. 9
4.2.1 Identification label: Outdoor unit ................................. 9
4.2.2 Identification label: Indoor unit .................................... 9
4.2.3 Identification label: Backup heater.............................. 10
4.3 Combining units and options ..................................................... 10
4.3.1 Possible options for the outdoor unit........................... 10
4.3.2 Possible options for the indoor unit............................. 10
4.3.3 Possible combinations of indoor unit and outdoor
unit .............................................................................. 11
4.3.4 Possible combinations of indoor unit and domestic
hot water tank ............................................................. 12
5 Application guidelines 12
5.1 Overview: Application guidelines............................................... 12
5.2 Setting up the space heating system ........................................ 12
5.2.1 Single room................................................................. 12
5.2.2 Multiple rooms – OneLWT zone ................................ 14
5.2.3 Multiple rooms – TwoLWT zones............................... 15
5.3 Setting up an auxiliary heat source for space heating............... 16
5.4 Setting up the domestic hot water tank ..................................... 18
5.4.1 System layout – Standalone DHW tank...................... 18
5.4.2 Selecting the volume and desired temperature for
the DHW tank.............................................................. 18
5.4.3 Setup and configuration – DHW tank.......................... 19
5.4.4 Combination: Standalone DHW tank + Solar panels .. 19
5.4.5 DHW pump for instant hot water................................. 19
5.4.6 DHW pump for disinfection ......................................... 19
5.4.7 DHW pump for tank preheating .................................. 19
5.5 Setting up the energy metering ................................................. 19
5.5.1 Produced heat............................................................. 20
5.5.2 Consumed energy....................................................... 20
5.5.3 Normal kWh rate power supply................................... 20
5.5.4 Preferential kWh rate power supply............................ 21
5.6 Setting up the power consumption control ................................ 21
5.6.1 Permanent power limitation ........................................ 21
5.6.2 Power limitation activated by digital inputs ................. 21
5.6.3 Power limitation process .............................................. 22
5.7 Setting up an external temperature sensor ................................ 22
6 Preparation 23
6.1 Overview: Preparation................................................................ 23
6.2 Preparing installation site ........................................................... 23
6.2.1 Installation site requirements of the outdoor unit ......... 23
6.2.2 Additional installation site requirements of the
outdoor unit in cold climates ........................................ 24
6.2.3 Installation site requirements of the indoor unit ........... 24
6.2.4 Installation site requirements of the backup heater ..... 24
6.3 Preparing refrigerant piping........................................................ 25
6.3.1 Refrigerant piping requirements................................... 25
6.3.2 Refrigerant piping insulation ........................................ 25
6.4 Preparing water piping ............................................................... 25
6.4.1 Water circuit requirements ........................................... 25
6.4.2 Formula to calculate the expansion vessel pre-
pressure ....................................................................... 26
6.4.3 To check the water volume and flow rate .................... 26
6.4.4 Changing the pre-pressure of the expansion vessel.... 27
6.4.5 To check the water volume: Examples ........................ 27
6.5 Preparing electrical wiring .......................................................... 28
6.5.1 About preparing electrical wiring.................................. 28
6.5.2 About preferential kWh rate power supply ................... 28
6.5.3 Overview of electrical connections except external
actuators ...................................................................... 28
6.5.4 Overview of electrical connections for external and
internal actuators ......................................................... 28
7 Installation 29
7.1 Overview: Installation ................................................................. 29
7.2 Opening the units ....................................................................... 30
7.2.1 About opening the units ............................................... 30
7.2.2 To open the outdoor unit.............................................. 30
7.2.3 To open the indoor unit ................................................ 30
7.2.4 To open the switch box cover of the indoor unit .......... 30
7.2.5 To open the backup heater.......................................... 30
7.2.6 To open the switch box cover of the backup heater .... 30
7.3 Mounting the outdoor unit........................................................... 31
7.3.1 About mounting the outdoor unit.................................. 31
7.3.2 Precautions when mounting the outdoor unit............... 31
7.3.3 To provide the installation structure ............................. 31
7.3.4 To install the outdoor unit............................................. 31
7.3.5 To provide drainage ..................................................... 31
7.3.6 To prevent the outdoor unit from falling over ............... 32
7.4 Mounting the indoor unit............................................................. 32
7.4.1 About mounting the indoor unit.................................... 32
7.4.2 Precautions when mounting the indoor unit................. 32
7.4.3 To install the indoor unit............................................... 32
7.4.4 To install the drain pan kit ............................................ 33
7.5 Mounting the backup heater....................................................... 33
7.5.1 Precautions when mounting the backup heater........... 33
7.5.2 To install the backup heater......................................... 33
7.6 Connecting the refrigerant piping ............................................... 34
7.6.1 About connecting the refrigerant piping ....................... 34
7.6.2 Precautions when connecting the refrigerant piping.... 34
7.6.3 Guidelines when connecting the refrigerant piping...... 34
7.6.4 Pipe bending guidelines............................................... 35
7.6.5 To flare the pipe end .................................................... 35
7.6.6 To braze the pipe end .................................................. 35
7.6.7 Using the stop valve and service port .......................... 35
7.6.8 To connect the refrigerant piping to the outdoor unit ... 36
7.6.9 To connect the refrigerant piping to the indoor unit ..... 37
7.6.10 To determine if oil traps are required ........................... 37
7.7 Checking the refrigerant piping .................................................. 37
7.7.1 About checking the refrigerant piping .......................... 37
7.7.2 Precautions when checking the refrigerant piping ....... 38
7.7.3 Checking refrigerant piping: Setup............................... 38
7.7.4 To check for leaks........................................................ 38
7.7.5 To perform vacuum drying ........................................... 38

1 General safety precautions
Installer reference guide
3
ERHQ+ERLQ011~016 + EHBH11+16CBV
Daikin Altherma – Low temperature split
4P449970-1 – 2016.06
7.8 Charging refrigerant .................................................................. 38
7.8.1 About charging refrigerant .......................................... 38
7.8.2 Precautions when charging refrigerant ....................... 39
7.8.3 To determine the additional refrigerant amount.......... 39
7.8.4 To determine the complete recharge amount............. 39
7.8.5 Charging refrigerant: Setup......................................... 39
7.8.6 To charge refrigerant .................................................. 39
7.8.7 To fix the fluorinated greenhouse gases label ............ 39
7.9 Connecting the water piping...................................................... 39
7.9.1 About connecting the water piping.............................. 39
7.9.2 Precautions when connecting the water piping........... 40
7.9.3 To connect the water piping........................................ 40
7.9.4 To connect the water piping to the backup heater...... 40
7.9.5 To fill the water circuit ................................................. 40
7.9.6 To fill the domestic hot water tank .............................. 41
7.9.7 To insulate the water piping........................................ 41
7.10 Connecting the electrical wiring................................................. 41
7.10.1 About connecting the electrical wiring......................... 41
7.10.2 About electrical compliance ........................................ 41
7.10.3 Precautions when connecting the electrical wiring ..... 42
7.10.4 Guidelines when connecting the electrical wiring ....... 42
7.10.5 Specifications of standard wiring components............ 42
7.10.6 To connect the electrical wiring on the outdoor unit.... 42
7.10.7 To reposition the air thermistor on the outdoor unit .... 43
7.10.8 To connect the electrical wiring on the indoor unit...... 44
7.10.9 To connect the main power supply ............................. 44
7.10.10 To connect the user interface ..................................... 45
7.10.11 To connect the shut-off valve...................................... 46
7.10.12 To connect the electrical meters ................................. 46
7.10.13 To connect the domestic hot water pump ................... 46
7.10.14 To connect the alarm output ....................................... 46
7.10.15 To connect the space heating ON/OFF output ........... 46
7.10.16 To connect the changeover to external heat source... 47
7.10.17 To connect the power consumption digital inputs ....... 47
7.10.18 To connect the safety thermostat (normal closed
contact) ....................................................................... 47
7.10.19 To connect the electrical wiring on the backup heater 47
7.10.20 To connect the backup heater power supply .............. 48
7.10.21 To connect the backup heater to the indoor unit......... 49
7.11 Finishing the outdoor unit installation ........................................ 49
7.11.1 To finish the outdoor unit installation .......................... 49
7.11.2 To close the outdoor unit ............................................ 49
7.12 Finishing the indoor unit installation .......................................... 49
7.12.1 To fix the user interface cover to the indoor unit......... 49
7.12.2 To close the indoor unit............................................... 49
7.13 Finishing the backup heater installation .................................... 49
7.13.1 To close the backup heater......................................... 49
8 Configuration 50
8.1 Overview: Configuration ............................................................ 50
8.1.1 To connect the PC cable to the switch box................. 50
8.1.2 To access the most used commands ......................... 50
8.1.3 To copy the system settings from the first to the
second user interface.................................................. 51
8.1.4 To copy the language set from the first to the second
user interface .............................................................. 51
8.1.5 Quick wizard: Set the system layout after first power
ON............................................................................... 51
8.2 Basic configuration .................................................................... 52
8.2.1 Quick wizard: Language / time and date..................... 52
8.2.2 Quick wizard: Standard............................................... 52
8.2.3 Quick wizard: Options ................................................. 54
8.2.4 Quick wizard: Capacities (energy metering) ............... 56
8.2.5 Space heating control ................................................. 56
8.2.6 Domestic hot water control ......................................... 59
8.2.7 Contact/helpdesk number........................................... 59
8.3 Advanced configuration/optimization......................................... 60
8.3.1 Space heating operation: advanced ........................... 60
8.3.2 Domestic hot water control: advanced........................ 63
8.3.3 Heat source settings ................................................... 66
8.3.4 System settings............................................................ 68
8.4 Menu structure: Overview user settings ..................................... 72
8.5 Menu structure: Overview installer settings................................ 73
9 Commissioning 74
9.1 Overview: Commissioning.......................................................... 74
9.2 Precautions when commissioning .............................................. 74
9.3 Checklist before commissioning................................................. 74
9.4 Checklist during commissioning ................................................. 74
9.4.1 To check the minimum flow rate .................................. 75
9.4.2 Air purge function......................................................... 75
9.4.3 To perform a test run ................................................... 76
9.4.4 To perform an actuator test run ................................... 76
9.4.5 Underfloor heating screed dryout................................. 76
10 Hand-over to the user 78
11 Maintenance and service 78
11.1 Overview: Maintenance and service .......................................... 78
11.2 Maintenance safety precautions................................................. 78
11.2.1 Opening the indoor unit................................................ 78
11.2.2 Opening the backup heater.......................................... 78
11.3 Checklist for yearly maintenance of the outdoor unit ................. 78
11.4 Checklist for yearly maintenance of the indoor unit.................... 78
12 Troubleshooting 79
12.1 Overview: Troubleshooting......................................................... 79
12.2 Precautions when troubleshooting ............................................. 79
12.3 Solving problems based on symptoms....................................... 79
12.3.1 Symptom: The unit is NOT heating as expected ......... 79
12.3.2 Symptom: The compressor does NOT start (space
heating or domestic water heating).............................. 80
12.3.3 Symptom: The pump is making noise (cavitation) ....... 80
12.3.4 Symptom: The pressure relief valve opens.................. 80
12.3.5 Symptom: The water pressure relief valve leaks ......... 80
12.3.6 Symptom: The space is NOT sufficiently heated at
low outdoor temperatures ............................................ 81
12.3.7 Symptom: The pressure at the tapping point is
temporarily unusually high ........................................... 81
12.3.8 Symptom: Decoration panels are pushed away due
to a swollen tank .......................................................... 81
12.3.9 Symptom: Tank disinfection function is NOT
completed correctly (AH-error)..................................... 81
12.4 Solving problems based on error codes ..................................... 81
12.4.1 Error codes: Overview ................................................. 81
13 Disposal 83
13.1 Overview: Disposal..................................................................... 83
13.2 About pump down ...................................................................... 83
13.3 To pump down............................................................................ 84
14 Technical data 85
14.1 Service space: Outdoor unit ....................................................... 85
14.2 Piping diagram: Outdoor unit...................................................... 87
14.3 Piping diagram: Indoor unit ........................................................ 88
14.4 Wiring diagram: Outdoor unit ..................................................... 89
14.5 Wiring diagram: Indoor unit ........................................................ 91
14.6 Wiring diagram: Backup heater .................................................. 94
14.7 ESP curve: Indoor unit ............................................................... 95
15 Glossary 96
16 Field settings table 97
1 General safety precautions
1.1 About the documentation
▪ The original documentation is written in English. All other
languages are translations.

1 General safety precautions
Installer reference guide
4
ERHQ+ERLQ011~016 + EHBH11+16CBV
Daikin Altherma – Low temperature split
4P449970-1 – 2016.06
▪ 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 the installer reference guide must be
performed by an authorized installer.
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.
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 unit's weight and
vibration.
▪ 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.

1 General safety precautions
Installer reference guide
5
ERHQ+ERLQ011~016 + EHBH11+16CBV
Daikin Altherma – Low temperature split
4P449970-1 – 2016.06
▪ 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.
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 leakage 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 re-charge is required, refer to 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.
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.

2 About the documentation
Installer reference guide
6
ERHQ+ERLQ011~016 + EHBH11+16CBV
Daikin Altherma – Low temperature split
4P449970-1 – 2016.06
NOTICE
Make sure water quality complies with EU directive
98/83EC.
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 1 minute,
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, shall 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.
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 below.
▪ 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.
Install power cables at least 1metre away from televisions or radios
to prevent interference. Depending on the radio waves, a distance of
1metre may not be sufficient.
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 indoor unit)
▪Indoor unit installation manual:
▪ Installation instructions
▪ Format: Paper (in the box of the indoor unit)
▪Outdoor unit installation manual:
▪ Installation instructions
▪ Format: Paper (in the box of the outdoor unit)

3 About the box
Installer reference guide
7
ERHQ+ERLQ011~016 + EHBH11+16CBV
Daikin Altherma – Low temperature split
4P449970-1 – 2016.06
▪Backup heater installation manual:
▪ Installation instructions
▪ Format: Paper (in the box of the backup heater)
▪Installer reference guide:
▪ Preparation of the installation, good practices, reference data,…
▪ Format: Digital files on http://www.daikineurope.com/support-
and-manuals/product-information/
▪Addendum book for optional equipment:
▪ Additional info about how to install optional equipment
▪ Format: Paper (in the box of the indoor unit) + 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.
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
extranet (authentication required).
2.2 Installer reference guide at a
glance
Chapter Description
General safety
precautions
Safety instructions that you must read
before installing
About the documentation What documentation exists for the
installer
About the box How to unpack the units and remove
their accessories
About the units and
options
▪ How to identify the units
▪ Possible combinations of units and
options
Application guidelines Various installation setups of the system
Preparation What to do and know before going
on‑site
Installation What to do and know to install the
system
Configuration What to do and know to configure the
system after it is installed
Commissioning What to do and know to commission the
system after it is configured
Hand‑over to the user What to give and explain to the user
Maintenance and service How to maintain and service the units
Troubleshooting What to do in case of problems
Disposal How to dispose of the system
Technical data Specifications of the system
Glossary Definition of terms
Field settings table Table to be filled in by the installer, and
kept for future reference
Note: There is also an installer settings
table in the user reference guide. This
table has to be filled in by the installer
and handed over to the user.
3 About the box
3.1 Overview: About the box
This chapter describes what you have to do after the boxes with the
outdoor and indoor unit are delivered on-site.
It contains information about:
▪ Unpacking and handling the units
▪ Removing the accessories from the units
Keep the following in mind:
▪ At delivery, the unit must be checked for damage. Any damage
must be reported immediately to the carrier's claims agent.
▪ Bring the packed unit as close as possible to its final installation
position to prevent damage during transport.
3.2 Outdoor unit
3.2.1 To unpack the outdoor unit
21
3.2.2 To handle the outdoor unit
Carry the unit slowly as shown:
102~114 kg
CAUTION
To avoid injury, do NOT touch the air inlet or aluminium
fins of the unit.

3 About the box
Installer reference guide
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3.2.3 To remove the accessories from the
outdoor unit
1×
2
1
a1× c1×
b2× d1×
e1× f1× g1×
aOutdoor unit installation manual
bCable tie
cFluorinated greenhouse gases label
dMultilingual fluorinated greenhouse gases label
eScrew (only for ERLQ)
fThermistor fixing plate (spare) (only for ERLQ)
gThermistor fixture (only for ERLQ)
3.3 Indoor unit
3.3.1 To unpack the indoor unit
a
a
aGeneral safety precautions, indoor unit installation manual,
operation manual and addendum book for optional
equipment
INFORMATION
Do NOT throw away the upper cardboard cover. On the
outside of the cardboard cover, the installation pattern is
printed.
3.3.2 To remove the accessories from the
indoor unit
The general safety precautions, the indoor unit installation manual,
the operation manual and the addendum book for optional
equipment are located in the upper part of the box. Follow the
procedure below to remove the other accessories.
1Remove the tape.
2×
2Tilt the bottom side of the front panel upwards and remove it.
3Remove the accessories.
g
e+f
h
2× 1× 1×
1× 1× 1× 1×
a b c d
f
2×
e g h
aGeneral safety precautions
bAddendum book for optional equipment

4 About the units and options
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cIndoor unit installation manual
dOperation manual
eSealing ring for shut-off valve
fShut-off valve
gUser interface cover
hTop plate of indoor unit
3.4 Backup heater
NOTICE
The backup heater is an option and can only be used in
combination with EHBH_CBV and EHVH_S_CBV indoor
units.
3.4.1 To unpack the backup heater
1
2
3.4.2 To remove the accessories from the
backup heater
1Remove the wall bracket from the box.
4 About the units and options
4.1 Overview: About the units and
options
This chapter contains information about:
▪ Identifying the outdoor unit
▪ Identifying the indoor unit
▪ Identifying the backup heater (if applicable)
▪ Combining outdoor and indoor units
▪ Combining the outdoor unit with options
▪ Combining the indoor 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
Model identification
▪ ERLQ: Contains components (insulation, bottom plate heater,…)
to prevent freeze-up in areas with low ambient temperature and
high humidity.
▪ ERHQ: Does NOT contain these components.
Example: ERLQ011CAW1
Code Explanation
ER European split outdoor pair heat pump
L H=Low water temperature – ambient zone:
0~−10°C
L=Low water temperature – ambient zone:
−10~−20°C
Q Refrigerant R410A
011 Capacity class
CA Model series
W1 Power supply
4.2.2 Identification label: Indoor unit
Location

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Model identification
Example: EHBH11CBV
Code Description
E European model
HB Wall-mounted indoor unit
H Heating only
11 Capacity class
CB Model series
V Model without backup heater in the space heating
circuit
4.2.3 Identification label: Backup heater
Location
Model identification
Example: EK L BUH CB 6 W1
Code Explanation
EK European kit
L Kit compatible with EHBH_CBV and
EHVH_S_CBV indoor units
BUH Backup heater
CB Model series
6 Capacity of heater kit (kW)
W1 Power supply
4.3 Combining units and options
4.3.1 Possible options for the outdoor unit
Demand PCB (KRP58M51) (only for ERLQ)
▪ Limits the maximum current. However, this also decreases the
heating/cooling capacity of the system.
▪ Only the "Setting of demand running" function of the demand PCB
is applicable.
▪ For installation instructions, see the installation manual of the
demand PCB.
Snow cover (EK016SNC) (only for ERLQ)
▪ Prevents the outdoor unit from being snowed up.
▪ Recommended in areas with low ambient temperatures or heavy
snowfall.
▪ For installation instructions, see the installation manual of the
snow cover.
Drain plug kit (EKDK04) (only for ERHQ)
▪ Gathers the condensate from the outdoor unit and guides it away
through 1 plug in the bottom plate.
▪ For ERLQ: Drain plug kit is not applicable.
▪ For ERHQ: Drain plug kit is option.
▪ Cannot be combined with bottom plate heater.
▪ For installation instructions, see the installation manual of the
drain plug kit.
Bottom plate heater (EKBPHTH16A) (only for ERHQ in
combination with C* indoor unit)
▪ Prevents freeze-up of the bottom plate.
▪ Recommended in areas with low ambient temperature and high
humidity.
▪ For ERLQ: Bottom plate heater is standard (factory-mounted).
▪ For ERHQ: Bottom plate heater is option.
▪ Cannot be combined with drain plug kit.
▪ If you install EKBPHTH16A, you also have to install the digital I/O
PCB (EKRP1HB).
▪ For installation instructions, see the installation manual of the
bottom plate heater and addendum book for optional equipment.
4.3.2 Possible options for the indoor unit
User interface (EKRUCBL*)
The user interface and a possible additional user interface are
available as an option.
The additional user interface can be connected:
▪ To have both:
▪ control close to the indoor unit,
▪ room thermostat functionality in the principal space to be
heated.
▪ To have an interface containing other languages.
Following user interfaces are available:
▪ EKRUCBL1 contains following languages: German, French,
Dutch, Italian.
▪ EKRUCBL2 contains following languages: English, Swedish,
Norwegian, Finnish.
▪ EKRUCBL3 contains following languages: English, Spanish,
Greek, Portuguese.
▪ EKRUCBL4 contains following languages: English, Turkish,
Polish, Romanian.
▪ EKRUCBL5 contains following languages: German, Czech,
Slovenian, Slovakian.
▪ EKRUCBL6 contains following languages: English, Croatian,
Hungarian, Estonian.
▪ EKRUCBL7 contains following languages: English, German,
Russian, Danish.
Languages on the user interface can be uploaded by PC software or
copied from an user interface to the other.
For installation instructions, see "7.10.10 To connect the user
interface"on page45.
Simplified user interface (EKRUCBS)
▪ The simplified user interface can only be used in combination with
the main user interface.
▪ The simplified user interface acts as room thermostat and needs
to be installed in the room that you want it to control.
For installation instructions, see the installation and operation
manual of the simplified user interface.

4 About the units and options
Installer reference guide
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Room thermostat (EKRTWA, EKRTR1, RTRNETA)
You can connect an optional room thermostat to the indoor unit. This
thermostat can either be wired (EKRTWA) or wireless (EKRTR1 and
RTRNETA). Thermostat RTRNETA can only be used in heating-only
systems.
For installation instructions, see the installation manual of the room
thermostat and addendum book for optional equipment.
Remote sensor for wireless thermostat (EKRTETS)
You can use a wireless indoor temperature sensor (EKRTETS) only
in combination with the wireless thermostat (EKRTR1).
For installation intructions, see the installation manual of the room
thermostat and addendum book for optional equipment.
Digital I/O PCB (EKRP1HB)
The digital I/O PCB is required to provide following signals:
▪ Alarm output
▪ Space heating On/OFF output
▪ Changeover to external heat source
▪ Control signal for bottom plate heater kit EKBPHTH16A.
For installation instructions, see the installation manual of the digital
I/O PCB and addendum book for optional equipment.
Demand PCB (EKRP1AHTA)
To enable the power saving consumption control by digital inputs
you must install the demand PCB.
For installation instructions, see the installation manual of the
demand PCB and addendum book for optional equipment.
Remote indoor sensor (KRCS01-1)
By default the internal user interface sensor will be used as room
temperature sensor.
As an option the remote indoor sensor can be installed to measure
the room temperature on another location.
For installation instructions, see the installation manual of the remote
indoor sensor and addendum book for optional equipment.
INFORMATION
▪ The remote indoor sensor can only be used in case the
user interface is configured with room thermostat
functionality.
▪ You can only connect either the remote indoor sensor
or the remote outdoor sensor.
Remote outdoor sensor (EKRSCA1)
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.
INFORMATION
You can only connect either the remote indoor sensor or
the remote outdoor sensor.
PC configurator (EKPCCAB)
The PC cable makes a connection between the switch box of the
indoor unit and a PC. It gives the possibility to upload different
language files to the user interface and indoor parameters to the
indoor unit. For the available language files, contact your local
dealer.
The software and corresponding operating instructions are available
on http://www.daikineurope.com/support-and-manuals/software-
downloads/.
For installation instructions, see the installation manual of the PC
cable and "8Configuration"on page50.
Heat pump convector (FWXV)
For providing space heating, it is possible to use heat pump
convectors (FWXV).
For installation instructions, refer to the installation manual of the
heat pump convectors, and the addendum book for optional
equipment.
Drain pan kit (EKHBDPCA2)
The drain pan is required to drain accumulated condensation from
the indoor unit. It is required during low temperature cooling
operation of the indoor unit and when the leaving water temperature
is <18°C.
For installation instructions, see the installation manual of the drain
pan kit.
Solar kit (EKSOLHW)
The solar kit is required to connect the solar application with the
domestic hot water tank.
For installation, see the installation manual of the solar kit and
addendum book for optional equipment.
Domestic hot water tank
The domestic hot water tank can be connected to the indoor unit for
providing domestic hot water.
Backup heater (EKLBUHCB6W1)
You can install an optional backup heater.
For installation instructions, see the installation manual of the
backup heater, or this installer reference guide.
LAN adapter for smartphone control + Smart Grid applications
(BRP069A61)
You can install this LAN adapter to:
▪ Control the system via a smartphone app.
▪ Use the system in various Smart Grid applications.
For installation instructions, see the installation manual of the LAN
adapter.
LAN adapter for smartphone control (BRP069A62)
You can install this LAN adapter to control the system via a
smartphone app.
For installation instructions, see the installation manual of the LAN
adapter.
4.3.3 Possible combinations of indoor unit and
outdoor unit
Outdoor unit Indoor unit
EHBH11 EHBH16
ERHQ011+ERLQ011 O —
ERHQ014+ERLQ014 — O
ERHQ016+ERLQ016 — O

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4.3.4 Possible combinations of indoor unit and domestic hot water tank
Indoor unit Domestic hot water tank
EKHWS EKHWP EKHWE EKHWET
EHBH11CBV O O O O
EHBH16CBV O O O O
5 Application guidelines
5.1 Overview: Application guidelines
The purpose of the application guidelines is to give a glance of the
possibilities of the Daikin heatpump system.
NOTICE
▪ The illustrations in the application guidelines are meant
for reference only, and are NOT to be used as detailed
hydraulic diagrams. The detailed hydraulic
dimensioning and balancing are NOT shown, and are
the responsibility of the installer.
▪ For more information about the configuration settings to
optimize heatpump operation, see "8Configuration"on
page50.
This chapter contains application guidelines for:
▪ Setting up the space heating system
▪ Setting up an auxiliary heat source for space heating
▪ Setting up the domestic hot water tank
▪ Setting up the energy metering
▪ Setting up the power consumption
▪ Setting up an external temperature sensor
5.2 Setting up the space heating
system
The Daikin heat pump system supplies leaving water to heat
emitters in one or more rooms.
Because the system offers a wide flexibility to control the
temperature in each room, you need to answer the following
questions first:
▪ How many rooms are heated by the Daikin heatpump system?
▪ Which heat emitter types are used in each room and what is their
design leaving water temperature?
Once the space heating requirements are clear, Daikin recommends
to follow the setup guidelines below.
NOTICE
If an external room thermostat is used, the external room
thermostat will control the room frost protection. However,
the room frost protection is only possible if the leaving
water temperature control on the unit's user interface is
turned ON.
INFORMATION
In case an external room thermostat is used and room frost
protection needs to be guaranteed in all conditions, then
you have to set auto emergency [A.6.C] to 1.
5.2.1 Single room
Underfloor heating or radiators – Wired room
thermostat
Setup
B
A
a
AMain leaving water temperature zone
BOne single room
aUser interface used as room thermostat
▪ The underfloor heating or radiators are directly connected to the
indoor unit.
▪ The room temperature is controlled by the user interface, which is
used as room thermostat. Possible installations:
▪ User interface installed in the room and used as room
thermostat
▪ User interface installed at the indoor unit and used for control
close to the indoor unit + user interface installed in the room
and used as room thermostat
Configuration
Setting Value
Unit temperature control:
▪ #: [A.2.1.7]
▪ Code: [C-07]
2 (RT control): Unit operation is
decided based on the ambient
temperature of the user interface.
Number of water temperature
zones:
▪ #: [A.2.1.8]
▪ Code: [7-02]
0 (1 LWT zone): Main
Benefits
▪Cost effective. You do NOT need an additional external room
thermostat.
▪Highest comfort and efficiency. The smart room thermostat
functionality can decrease or increase the desired leaving water
temperature based on the actual room temperature (modulation).
This results in:
▪ Stable room temperature matching the desired temperature
(higher comfort)
▪ Less ON/OFF cycles (more quiet, higher comfort and higher
efficiency)
▪ Lowest possible leaving water temperature (higher efficiency)

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▪Easy. You can easily set the desired room temperature via the
user interface:
▪ For your daily needs, you can use preset values and schedules.
▪ To deviate from your daily needs, you can temporarily overrule
the preset values and schedules, use the holiday mode…
Underfloor heating or radiators – Wireless room
thermostat
Setup
B
A
b
a
AMain leaving water temperature zone
BOne single room
aReceiver for wireless external room thermostat
bWireless external room thermostat
▪ The underfloor heating or radiators are directly connected to the
indoor unit.
▪ The room temperature is controlled by the wireless external room
thermostat (optional equipment EKRTR1).
Configuration
Setting Value
Unit temperature control:
▪ #: [A.2.1.7]
▪ Code: [C-07]
1 (Ext RT control): Unit operation
is decided by the external
thermostat.
Number of water temperature
zones:
▪ #: [A.2.1.8]
▪ Code: [7-02]
0 (1 LWT zone): Main
External room thermostat for the
main zone:
▪ #: [A.2.2.4]
▪ Code: [C-05]
1 (Thermo ON/OFF): When the
used external room thermostat or
heatpump convector can only
send a thermo ON/OFF
condition.
Benefits
▪Wireless. The Daikin external room thermostat is available in a
wireless version.
▪Efficiency. Although the external room thermostat only sends ON/
OFF signals, it is specifically designed for the heatpump system.
Heatpump convectors
Setup
B
A
a
AMain leaving water temperature zone
BOne single room
aRemote controller of the heatpump convectors
▪ The underfloor heating or radiators are directly connected to the
indoor unit.
▪ The desired room temperature is set via the remote controller of
the heatpump convectors.
▪ The space heating demand signal is sent to one digital input on
the indoor unit (X2M/1 and X2M/4).
▪ The space operation mode is sent to the heatpump convectors by
one digital output on the indoor unit (X2M/32 and X2M/33).
INFORMATION
When using multiple heat pump convectors, make sure
each one receives the infrared signal from the remote
controller of the heatpump convectors.
Configuration
Setting Value
Unit temperature control:
▪ #: [A.2.1.7]
▪ Code: [C-07]
1 (Ext RT control): Unit operation
is decided by the external
thermostat.
Number of water temperature
zones:
▪ #: [A.2.1.8]
▪ Code: [7-02]
0 (1 LWT zone): Main
External room thermostat for the
main zone:
▪ #: [A.2.2.4]
▪ Code: [C-05]
1 (Thermo ON/OFF): When the
used external room thermostat or
heatpump convector can only
send a thermo ON/OFF
condition.
Benefits
▪Efficiency. Optimal energy efficiency because of the interlink
function.
▪Stylish.
Combination: Underfloor heating + Heatpump
convectors
▪ Space heating is provided by:
▪ The underfloor heating
▪ The heatpump convectors
Setup
B
A
a
AMain leaving water temperature zone
BOne single room
aRemote controller of the heatpump convectors
▪ The heat pump convectors are directly connected to the indoor
unit.
▪ The desired room temperature is set via the remote controller of
the heatpump convectors.

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▪ The space heating demand signal is sent to one digital input on
the indoor unit (X2M/1 and X2M/4)
▪ The space operation mode is sent to the heat pump convectors by
one digital output (X2M/32 and X2M/33) on the indoor unit.
Configuration
Setting Value
Unit temperature control:
▪ #: [A.2.1.7]
▪ Code: [C-07]
1 (Ext RT control): Unit operation
is decided by the external
thermostat.
Number of water temperature
zones:
▪ #: [A.2.1.8]
▪ Code: [7-02]
0 (1 LWT zone): Main
External room thermostat for the
main zone:
▪ #: [A.2.2.4]
▪ Code: [C-05]
1 (Thermo ON/OFF): When the
used external room thermostat or
heatpump convector can only
send a thermo ON/OFF
condition.
Benefits
▪Efficiency. Under floor heating has the best performance with
Altherma LT.
▪Comfort. The combination of the two heat emitter types provides
excellent heating comfort of the underfloor heating.
5.2.2 Multiple rooms – OneLWT zone
If only one leaving water temperature zone is needed because the
design leaving water temperature of all heat emitters is the same,
you do NOT need a mixing valve station (cost effective).
Example: If the heat pump system is used to heat up one floor
where all the rooms have the same heat emitters.
Underfloor heating or radiators – Thermostatic
valves
If you are heating up rooms with underfloor heating or radiators, a
very common way is to control the temperature of the main room by
using a thermostat (this can either be the user interface or an
external room thermostat), while the other rooms are controlled by
so-called thermostatic valves, which open or close depending on the
room temperature.
Setup
T
B C
A
a
AMain leaving water temperature zone
BRoom 1
CRoom 2
aUser interface
▪ The underfloor heating of the main room is directly connected to
the indoor unit.
▪ The room temperature of the main room is controlled by the user
interface used as thermostat.
▪ A thermostatic valve is installed before the underfloor heating in
each of the other rooms.
INFORMATION
Mind situations where the main room can be heated by
another heating source. Example: Fireplaces.
Configuration
Setting Value
Unit temperature control:
▪ #: [A.2.1.7]
▪ Code: [C-07]
2 (RT control): Unit operation is
decided based on the ambient
temperature of the user interface.
Number of water temperature
zones:
▪ #: [A.2.1.8]
▪ Code: [7-02]
0 (1 LWT zone): Main
Benefits
▪Cost effective.
▪Easy. Same installation as for one room, but with thermostatic
valves.
Underfloor heating or radiators – Multiple external
room thermostats
Setup
M2
B C
A
a
b
a
M1
AMain leaving water temperature zone
BRoom 1
CRoom 2
aExternal room thermostat
bBypass valve
▪ For each room, a shut-off valve (field supplied) is installed to avoid
leaving water supply when there is no heating demand.
▪ A bypass valve must be installed to make water recirculation
possible when all shut-off valves are closed. To guarantee reliable
operation, provide a minimum water flow as described in table "To
check the water volume and flow rate" in "6.4 Preparing water
piping"on page25.
▪ The user interface connected to the indoor unit decides the space
operation mode. Mind that the operation mode on each room
thermostat must be set to match the indoor unit.
▪ The room thermostats are connected to the shut-off valves, but do
NOT have to be connected to the indoor unit. The indoor unit will
supply leaving water all the time, with the possibility to program a
leaving water schedule.
Configuration
Setting Value
Unit temperature control:
▪ #: [A.2.1.7]
▪ Code: [C-07]
0 (LWT control): Unit operation is
decided based on the leaving
water temperature.

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Setting Value
Number of water temperature
zones:
▪ #: [A.2.1.8]
▪ Code: [7-02]
0 (1 LWT zone): Main
Benefits
Compared with underfloor heating or radiators for one room:
▪Comfort. You can set the desired room temperature, including
schedules, for each room via the room thermostats.
Heatpump convectors
Setup
B
A
a a
C
AMain leaving water temperature zone
BRoom 1
CRoom 2
aRemote controller of the heatpump convectors
▪ The desired room temperature is set via the remote controller of
the heatpump convectors.
▪ The user interface connected to the indoor unit decides the space
operation mode.
▪ The heating demand signals of each heat pump convector are
connected in parallel to the digital input on the indoor unit (X2M/1
and X2M/4). The indoor unit will only supply leaving water
temperature when there is an actual demand.
INFORMATION
To increase comfort and performance, Daikin recommends
to install the valve kit option EKVKHPC on each heatpump
convector.
Configuration
Setting Value
Unit temperature control:
▪ #: [A.2.1.7]
▪ Code: [C-07]
1 (Ext RT control): Unit operation
is decided by the external
thermostat.
Number of water temperature
zones:
▪ #: [A.2.1.8]
▪ Code: [7-02]
0 (1 LWT zone): Main
Benefits
Compared with heatpump convectors for one room:
▪Comfort. You can set the desired room temperature, including
schedules, for each room via the remote controller of the
heatpump convectors.
Combination: Underfloor heating + Heatpump
convectors
Setup
b
B C
A
a
M1
AMain leaving water temperature zone
BRoom 1
CRoom 2
aExternal room thermostat
bRemote controller of the heatpump convectors
▪ For each room with heat pump convectors: The heat pump
convectors are directly connected to the indoor unit.
▪ For each room with under floor heating: A shut-off valve (field
supply) is installed before the under floor heating. It prevents hot
water supply when the room has no heating demand.
▪ For each room with heat pump convectors: The desired room
temperature is set via the remote controller of the heat pump
convectors.
▪ For each room with under floor heating: The desired room
temperature is set via the external room thermostat (wired or
wireless).
▪ The user interface connected to the indoor unit decides the space
operation mode. Mind that the operation mode on each external
room thermostat and remote controller of the heat pump
convectors must be set to match the indoor unit.
INFORMATION
To increase comfort and performance, Daikin recommends
to install the valve kit option EKVKHPC on each heatpump
convector.
Configuration
Setting Value
Unit temperature control:
▪ #: [A.2.1.7]
▪ Code: [C-07]
0 (LWT control): Unit operation is
decided based on the leaving
water temperature.
Number of water temperature
zones:
▪ #: [A.2.1.8]
▪ Code: [7-02]
0 (1 LWT zone): Main
5.2.3 Multiple rooms – TwoLWT zones
If the heat emitters selected for each room are designed for different
leaving water temperatures, you can use different leaving water
temperature zones (maximum 2).
In this document:
▪ Main zone = Zone with the lowest design temperature
▪ Additional zone = The other zone

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CAUTION
When there is more than one leaving water zone, you must
ALWAYS install a mixing valve station in the main zone to
decrease (in heating) the leaving water temperature when
the additional zone has demand.
Typical example:
Room (zone) Heat emitters: Design
temperature
Living room (main zone) Underfloor heating: 35°C
Bed rooms (additional zone) Heatpump convectors: 45°C
Setup
B
A
a a
C
E
D
b
c
d
AAdditional leaving water temperature zone
BRoom 1
CRoom 2
DMain leaving water temperature zone
ERoom 3
aRemote controller of the heatpump convectors
bUser interface
cMixing valve station
dPressure regulating valve
INFORMATION
A pressure regulating valve should be implemented before
the mixing valve station. This is to guarantee the correct
water flow balance between the main leaving water
temperature zone and the additional leaving water
temperature zone in relation to the required capacity of
both water temperature zones.
▪ For the main zone:
▪ A mixing valve station is installed before the underfloor heating.
▪ The pump of the mixing valve station is controlled by the ON/
OFF signal on the indoor unit (X2M/5 and X2M/7; normal closed
shut-off valve output).
▪ The room temperature is controlled by the user interface, which
is used as room thermostat.
▪ For the additional zone:
▪ The heatpump convectors are directly connected to the indoor
unit.
▪ The desired room temperature is set via the remote controller of
the heatpump convectors for each room.
▪ The heating demand signals of each heatpump convector are
connected in parallel to the digital input on the indoor unit
(X2M/1 and X2M/4). The indoor unit will only supply the desired
additional leaving water temperature when there is an actual
demand.
▪ The user interface connected to the indoor unit decides the space
operation mode. Mind that the operation mode on each remote
controller of the heat pump convectors must be set to match the
indoor unit.
Configuration
Setting Value
Unit temperature control:
▪ #: [A.2.1.7]
▪ Code: [C-07]
2 (RT control): Unit operation is
decided based on the ambient
temperature of the user interface.
Note:
▪ Main room = user interface
used as room thermostat
functionality
▪ Other rooms = external room
thermostat functionality
Number of water temperature
zones:
▪ #: [A.2.1.8]
▪ Code: [7-02]
1 (2 LWT zones): Main +
additional
In case of heatpump convectors:
External room thermostat for the
additional zone:
▪ #: [A.2.2.5]
▪ Code: [C-06]
1 (Thermo ON/OFF): When the
used external room thermostat or
heatpump convector can only
send a thermo ON/OFF
condition.
Shut-off valve output Set to follow the thermo demand
of the main zone.
At the mixing valve station Set the desired main leaving
water temperature.
Benefits
▪Comfort.
▪ The smart room thermostat functionality can decrease or
increase the desired leaving water temperature based on the
actual room temperature (modulation).
▪ The combination of the two heat emitter systems provides the
excellent heating comfort of the under floor heating, and the
rapid air heat up of the heat pump convectors (e.g., living
room=under floor heating and the bedroom=convector (no
continuous heating)).
▪Efficiency.
▪ Depending on the demand, the indoor unit supplies different
leaving water temperature matching the design temperature of
the different heat emitters.
▪ Underfloor heating has the best performance with Altherma LT.
5.3 Setting up an auxiliary heat source
for space heating
▪ Space heating can be done by:
▪ The indoor unit
▪ An auxiliary boiler (field supply) connected to the system
▪ When the room thermostat requests heating, the indoor unit or the
auxiliary boiler starts operating depending on the outdoor
temperature (status of the changeover to external heat source).
When the permission is given to the auxiliary boiler, the space
heating by the indoor unit is turned OFF.
▪ Bivalent operation is only possible for space heating, NOT for
domestic hot water production. Domestic hot water is always
produced by the DHW tank connected to the indoor unit.

5 Application guidelines
Installer reference guide
17
ERHQ+ERLQ011~016 + EHBH11+16CBV
Daikin Altherma – Low temperature split
4P449970-1 – 2016.06
INFORMATION
▪ During heating operation of the heat pump, the
heat pump operates to achieve the desired
temperature set via the user interface. When weather-
dependent operation is active, the water temperature is
determined automatically depending on the outdoor
temperature.
▪ During heating operation of the auxiliary boiler, the
auxiliary boiler operates to achieve the desired water
temperature set via the auxiliary boiler controller.
Setup
▪ Integrate the auxiliary boiler as follows:
a b c e f g h j
FHL1 FHL2 FHL3
M
h
i
il
k
f
m
n
d
aOutdoor unit
bIndoor unit
cHeat exchanger
dAnti-legionella heater
ePump
fShut-off valve
gMotorised 3‑way valve (delivered with DHW tank)
hNon-return valve (field supply)
iShut-off valve (field supply)
jCollector (field supply)
kAuxiliary boiler (field supply)
lAquastat valve (field supply)
mDHW tank (option)
nHeat exchanger coil
FHL1...3 Underfloor heating
NOTICE
▪ Make sure the auxiliary boiler and its integration in the
system complies with applicable legislation.
▪ Daikin is NOT responsible for incorrect or unsafe
situations in the auxiliary boiler system.
▪ Make sure the return water to the heatpump does NOT exceed
55°C. To do so:
▪ Set the desired water temperature via the auxiliary boiler
controller to maximum 55°C.
▪ Install an aquastat valve in the return water flow of the
heatpump.
▪ Set the aquastat valve to close above 55°C and to open below
55°C.
▪ Install non-return valves.
▪ Make sure to only have one expansion vessel in the water circuit.
An expansion vessel is already premounted in the indoor unit.
▪ Install the digital I/O PCB (option EKRP1HB).
▪ Connect X1 and X2 (changeover to external heat source) on the
PCB to the auxiliary boiler thermostat.
▪ To setup the heat emitters, see "5.2Setting up the space heating
system"on page12.
Configuration
Via the user interface (quick wizard):
▪ Set the use of a bivalent system as external heat source.
▪ Set the bivalent temperature and hysteresis.
NOTICE
▪ Make sure the bivalent hysteresis has enough
differential to prevent frequent changeover between
indoor unit and auxiliary boiler.
▪ Because the outdoor temperature is measured by the
outdoor unit air thermistor, install the outdoor unit in the
shadow so that it is NOT influenced or turned ON/OFF
by direct sunlight.
▪ Frequent changeover may cause corrosion of the
auxiliary boiler. Contact the manufacturer of the
auxiliary boiler for more information.
Changeover to external heat source decided by an auxiliary
contact
▪ Only possible in external room thermostat control AND one
leaving water temperature zone (see "5.2 Setting up the space
heating system"on page12).
▪ The auxiliary contact can be:
▪ An outdoor temperature thermostat
▪ An electricity tariff contact
▪ A manually operated contact
▪ …
▪ Setup: Connect the following field wiring:
L
N
H
Com
A
K2AK1A
X2M BTI
K2AK1A
Indoor/Auto/Boiler
1 2 3 4 X Y
Indoor
BTI Boiler thermostat input
AAuxiliary contact (normal closed)
HHeating demand room thermostat (optional)
K1A Auxiliary relay for activation of indoor unit (field supply)
K2A Auxiliary relay for activation of boiler (field supply)
Indoor Indoor unit
Auto Automatic
Boiler Boiler
NOTICE
▪ Make sure the auxiliary contact has enough differential
or time delay to prevent frequent changeover between
indoor unit and auxiliary boiler.
▪ If the auxiliary contact is an outdoor temperature
thermostat, install the thermostat in the shadow so that
it is NOT influenced or turned ON/OFF by direct
sunlight.
▪ Frequent changeover may cause corrosion of the
auxiliary boiler. Contact the manufacturer of the
auxiliary boiler for more information.

5 Application guidelines
Installer reference guide
18
ERHQ+ERLQ011~016 + EHBH11+16CBV
Daikin Altherma – Low temperature split
4P449970-1 – 2016.06
5.4 Setting up the domestic hot water
tank
The DHW tank can be installed standalone as option. It contains a
2.4kW anti-legionella heater.
5.4.1 System layout – Standalone DHW tank
FHL1 FHL2 FHL3
M
a b c ed ge f
h j
i
aOutdoor unit
bIndoor unit
cHeat exchanger
dPump
eShut-off valve
fMotorised 3‑way valve
gCollector (field supply)
hDHW tank
iAnti-legionella heater
jHeat exchanger coil
FHL1...3 Underfloor heating
5.4.2 Selecting the volume and desired
temperature for the DHW tank
People experience water as hot when its temperature is 40°C.
Therefore, the DHW consumption is always expressed as equivalent
hot water volume at 40°C. However, you can set the DHW tank
temperature at a higher temperature (example: 53°C), which is then
mixed with cold water (example: 15°C).
Selecting the volume and desired temperature for the DHW tank
consists of:
1 Determining the DHW consumption (equivalent hot water
volume at 40°C).
2 Determining the volume and desired temperature for the DHW
tank.
Possible DHW tank volumes
Type Possible volumes
Standalone DHW tank ▪ 150l
▪ 200l
▪ 300l
▪ 500l
Energy saving tips
▪ If the DHW consumption differs from day to day, you can program
a weekly schedule with different desired DHW tank temperatures
for each day.
▪ The lower the desired DHW tank temperature, the more cost
effective. By selecting a larger DHW tank, you can lower the
desired DHW tank temperature.
▪ The heatpump itself can produce domestic hot water of maximum
55°C (50°C if outdoor temperature is low). The electrical
resistance integrated in the DHW tank (anti-legionella heater) can
increase this temperature. However, this consumes more energy.
Daikin recommends to set the desired DHW tank temperature
below 55°C to avoid using the electrical resistance.
The anti-legionella heater:
▪ Is used as emergency heater.
▪ Is used when the disinfection function for the DHW tank is
active.
▪ Can assist during defrost operation for the outdoor unit.
▪ The higher the outdoor temperature, the better the performance of
the heatpump.
▪ If energy prices are the same during the day and the night,
Daikin recommends to heat up the DHW tank during the day.
▪ If energy prices are lower during the night, Daikin recommends
to heat up the DHW tank during the night.
▪ When the heatpump produces domestic hot water, it cannot heat
up a space. When you need domestic hot water and space
heating at the same, Daikin recommends to produce the domestic
hot water during the night when there is lower space heating
demand.
Determining the DHW consumption
Answer the following questions and calculate the DHW consumption
(equivalent hot water volume at 40°C) using the typical water
volumes:
Question Typical water volume
How many showers are needed
per day?
1shower = 10min×10l/min =
100l
How many baths are needed per
day?
1bath = 150l
How much water is needed at the
kitchen sink per day?
1sink = 2min×5l/min = 10l
Are there any other domestic hot
water needs?
—
Example: If the DHW consumption of a family (4 persons) per day is
as follows:
▪ 3 showers
▪ 1 bath
▪ 3 sink volumes
Then the DHW consumption = (3×100l)+(1×150l)+(3×10l)=480l
Determining the volume and desired temperature for the DHW
tank
Formula Example
V1=V2+V2×(T2−40)/(40−T1) If:
▪ V2=180l
▪ T2=54°C
▪ T1=15°C
Then V1=280l
V2=V1×(40−T1)/(T2−T1) If:
▪ V1=480l
▪ T2=54°C
▪ T1=15°C
Then V2=307l
V1DHW consumption (equivalent hot water volume at 40°C)
V2Required DHW tank volume if only heated once
T2DHW tank temperature
T1Cold water temperature

5 Application guidelines
Installer reference guide
19
ERHQ+ERLQ011~016 + EHBH11+16CBV
Daikin Altherma – Low temperature split
4P449970-1 – 2016.06
5.4.3 Setup and configuration – DHW tank
▪ For large DHW consumptions, you can heat up the DHW tank
several times during the day.
▪ To heat up the DHW tank to the desired DHW tank temperature,
you can use the following energy sources:
▪ Thermodynamic cycle of the heatpump
▪ Anti-legionella heater
▪ Solar panels
▪ For more information about optimizing the energy consumption for
producing domestic hot water, see "8Configuration"on page50.
5.4.4 Combination: Standalone DHW tank +
Solar panels
By connecting the DHW tank to solar panels, the DHW tank can be
heated by solar energy.
For installation instructions, see the installation manual of the solar
kit and addendum book for optional equipment.
M
a
c
db
c.1
c.2
c.3 e
c.4
f
≥0.5 m
aSolar panels
bSolar pump station
cSolar pump station controller with temperature sensors
c1 Tank temperature sensor
c2 Return temperature sensor to solar panels
c3 Supply temperature with flowmeter from solar panels
c4 Solar panel temperature sensor
dSolar kit
eDHW temperature sensor of the unit
fSolenoid 2-way valve (only for UK). Obligatory for
compliance to UK building regulation G3.
5.4.5 DHW pump for instant hot water
Setup
c
f
a
bg
h
i
aIndoor unit
bDHW tank
cDHW pump (field supply)
fShower (field supply)
gCold water
hDomestic hot water OUT
iRecirculation connection
▪ By connecting a DHW pump, instant hot water can be available at
the tap.
▪ The DHW pump and the installation are field supply and the
responsibility of the installer.
▪ For more information about connecting the recirculation
connection: see "7Installation"on page29.
Configuration
▪ For more information, see "8Configuration"on page50.
▪ You can program a schedule to control the DHW pump via the
user interface. For more information, see the user reference
guide.
5.4.6 DHW pump for disinfection
Setup
c
a
bd f
e g
h
i
aIndoor unit
bDHW tank
cDHW pump (field supply)
dHeater element (field supply)
eNon‑return valve (field supply)
fShower (field supply)
gCold water
hDomestic hot water OUT
iRecirculation connection
▪ The DHW pump is field-supplied and its installation is the
responsibility of the installer.
▪ The temperature of the DHW tank can be set to maximum 60°C. If
applicable legislation requires higher temperature for disinfection,
you can connect a DHW pump and heater element as shown
above.
▪ If applicable legislation requires disinfection of the water piping
until the tapping point, you can connect a DHW pump and heater
element (if needed) as shown above.
Configuration
The indoor unit can control DHW pump operation. For more
information, see "8Configuration"on page50.
5.4.7 DHW pump for tank preheating
Setup
c
a
be
df
g
h
aIndoor unit
bDHW tank
cDHW pump (field supply)
dNon‑return valve (field supply)
eShower (field supply)
fCold water
gDomestic hot water OUT
hRecirculation connection
▪ The DHW pump is field-supplied and its installation is the
responsibility of the installer.
▪ For the standalone DHW tank: If there is no electrical backup
heater in the space heating circuit, you must install a DHW pump
for tank preheating.
Configuration
The indoor unit can control DHW pump operation. For more
information, see "8Configuration"on page50.
5.5 Setting up the energy metering
▪ Via the user interface, you can read out the following energy data:
▪ Produced heat
▪ Consumed energy

5 Application guidelines
Installer reference guide
20
ERHQ+ERLQ011~016 + EHBH11+16CBV
Daikin Altherma – Low temperature split
4P449970-1 – 2016.06
▪ You can read out the energy data:
▪ For space heating
▪ For domestic hot water production
▪ You can read out the energy data:
▪ Per month
▪ Per year
INFORMATION
The calculated produced heat and consumed energy are
an estimation, the accuracy cannot be guaranteed.
5.5.1 Produced heat
INFORMATION
The sensors used to calculate the produced heat are
calibrated automatically.
▪ Applicable for all models.
▪ The produced heat is calculated internally based on:
▪ The leaving and entering water temperature
▪ The flow rate
▪ The power consumption of the anti-legionella heater in the
domestic hot water tank
▪ Setup and configuration:
▪ No additional equipment needed.
▪ Measure the capacity (resistance measurement) of the anti-
legionella heater and set the capacity via the user interface.
Example: If you measure an anti-legionella heater resistance of
17.1Ω, the capacity of the heater at 230V is 3100W.
5.5.2 Consumed energy
You can use the following methods to determine the consumed
energy:
▪ Calculating
▪ Measuring
INFORMATION
You cannot combine calculating the consumed energy
(example: for backup heater (if applicable)) and measuring
the consumed energy (example: for outdoor unit). If you do
so, the energy data will be invalid.
Calculating the consumed energy
▪ Only applicable for EHBH04+08.
▪ The consumed energy is calculated internally based on:
▪ The actual power input of the outdoor unit
▪ The set capacity of the backup heater (if applicable) and anti-
legionella heater
▪ The voltage
▪ Setup and configuration: To get accurate energy data, measure
the capacity (resistance measurement) and set the capacity via
the user interface for:
▪ The backup heater (step1 and step2) (if applicable)
▪ The anti-legionella heater
Measuring the consumed energy
▪ Applicable for all models.
▪ Preferred method because of higher accuracy.
▪ Requires external power meters.
▪ Setup and configuration: When using electrical power meters, set
the number of pulses/kWh for each power meter via the user
interface. Consumed energy data for EHBH11+16 models will only
be available if this setting is configured.
INFORMATION
When measuring the electrical power consumption, make
sure ALL power input of the system is covered by the
electrical power meters.
5.5.3 Normal kWh rate power supply
General rule
One power meter that covers the entire system is sufficient.
Setup
Connect the power meter to X5M/7 and X5M/8.
Power meter type
In case of… Use a… power meter
▪ Single-phase outdoor unit
▪ No backup heater or backup
heater supplied from a single-
phase grid
Single-phase
In other cases (i.e. a three-phase
outdoor unit and/or a backup
heater connected to a three-
phase grid)
Three-phase
Example
Single-phase power meter Three-phase power meter
b
580150
0
0
c c
fed g
A B C
a
A Outdoor unit
B Indoor unit
C DHW tank
a Electrical cabinet (L1/N)
b Power meter (L1/N)
c Fuse (L1/N)
d Outdoor unit (L1/N)
e Indoor unit (L1/N)
f Backup heater (L1/N)
g Anti-legionella heater (L1/N)
b
580150
0
0
gfe h
A B C
c c d
a
A Outdoor unit
B Indoor unit
C DHW tank
a Electrical cabinet (L1/L2/L3/N)
b Power meter (L1/L2/L3/N)
c Fuse (L1/L2/L3/N)
d Fuse (L1/N)
e Outdoor unit (L1/L2/L3/N)
f Indoor unit (L1/L2/L3/N)
g Backup heater (L1/L2/L3/N)
h Anti-legionella heater (L1/N)
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