Daikin Altherma EHVH/X16S18+26CA 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
EHVH/X16S18+26CA

Table of contents
Installer reference guide
2
ERHQ011~016BA + ERLQ011~016CA + EHVH/X16S18+26CA
Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
Table of contents
1About the documentation ................................ 3
1.1 About this document ................................................................. 3
2General safety precautions .............................. 3
2.1 About the documentation .......................................................... 3
2.1.1 Meaning of warnings and symbols ............................ 3
2.2 For the installer ......................................................................... 3
2.2.1 General ...................................................................... 3
2.2.2 Installation site ........................................................... 4
2.2.3 Refrigerant ................................................................. 4
2.2.4 Water ......................................................................... 4
2.2.5 Electrical .................................................................... 4
3About the box .................................................... 5
3.1 Indoor unit ................................................................................. 5
3.1.1 To unpack the indoor unit .......................................... 5
3.1.2 To remove the accessories from the indoor unit ........ 5
4About the units and options ............................ 6
4.1 Identification .............................................................................. 6
4.1.1 Identification label: Indoor unit ................................... 6
4.2 Possible combinations of units and options .............................. 6
4.2.1 List of options for indoor unit ...................................... 6
4.2.2 Possible combinations of indoor unit and outdoor
unit ............................................................................. 7
5Application guidelines ...................................... 7
5.1 Overview: Application guidelines .............................................. 7
5.2 Setting up the space heating/cooling system ........................... 7
5.2.1 Single room ................................................................ 7
5.2.2 Multiple rooms – One LWT zone ............................... 9
5.2.3 Multiple rooms – Two LWT zones ............................. 11
5.3 Setting up an auxiliary heat source for space heating .............. 12
5.4 Setting up the domestic hot water tank ..................................... 14
5.4.1 System layout – Integrated DHW tank ....................... 14
5.4.2 System layout – Standalone DHW tank ..................... 14
5.4.3 Selecting the volume and desired temperature for
the DHW tank ............................................................ 14
5.4.4 Setup and configuration – DHW tank ........................ 15
5.4.5 Combination: Standalone DHW tank + Solar panels . 15
5.4.6 DHW pump for instant hot water ................................ 15
5.4.7 DHW pump for disinfection ........................................ 16
5.5 Setting up the energy metering ................................................. 16
5.5.1 Produced heat ........................................................... 16
5.5.2 Consumed energy ..................................................... 16
5.5.3 Normal kWh rate power supply .................................. 16
5.5.4 Preferential kWh rate power supply ........................... 17
5.6 Setting up the power consumption control ................................ 17
5.6.1 Permanent power limitation ....................................... 18
5.6.2 Power limitation activated by digital inputs ................ 18
5.6.3 Power limitation process ............................................ 18
5.7 Setting up an external temperature sensor ............................... 19
6Preparation ........................................................ 19
6.1 Preparing installation site .......................................................... 19
6.1.1 Installation site requirements of the indoor unit ......... 19
6.2 Preparing water piping .............................................................. 20
6.2.1 Water circuit requirements ......................................... 20
6.2.2 Formula to calculate the expansion vessel pre-
pressure ..................................................................... 21
6.2.3 To check the water volume ........................................ 21
6.2.4 Changing the pre-pressure of the expansion vessel . 22
6.2.5 To check the water volume: Examples ...................... 22
6.3 Preparing electrical wiring ......................................................... 22
6.3.1 About preparing electrical wiring ................................ 22
6.3.2 About preferential kWh rate power supply ................. 23
6.3.3 Overview of electrical connections except external
actuators .................................................................... 23
6.3.4 Overview of electrical connections for external and
internal actuators ....................................................... 23
7Installation ......................................................... 24
7.1 Opening the units ...................................................................... 24
7.1.1 To open the indoor unit .............................................. 24
7.1.2 To open the switch box cover of the indoor unit ........ 24
7.2 Mounting the indoor unit ........................................................... 24
7.2.1 To install the indoor unit ............................................. 24
7.2.2 To lower the sound plate ........................................... 25
7.3 Connecting the water piping ..................................................... 25
7.3.1 To connect the water piping ....................................... 25
7.3.2 To connect the pressure relief valve to the drain ....... 26
7.3.3 To fill the water circuit ................................................ 26
7.3.4 To fill the domestic hot water tank ............................. 26
7.3.5 To insulate the water piping ....................................... 26
7.3.6 To connect the recirculation piping ............................ 26
7.4 Connecting the electrical wiring ................................................ 27
7.4.1 About electrical compliance ....................................... 27
7.4.2 To connect the electrical wiring on the indoor unit ..... 27
7.4.3 To connect the main power supply ............................ 28
7.4.4 To connect the backup heater power supply ............. 29
7.4.5 To connect the user interface .................................... 30
7.4.6 To connect the shut-off valve ..................................... 31
7.4.7 To connect the electrical meters ................................ 31
7.4.8 To connect the domestic hot water pump .................. 31
7.4.9 To connect the alarm output ...................................... 32
7.4.10 To connect the space cooling/heating ON/OFF
output ......................................................................... 32
7.4.11 To connect the changeover to external heat source .. 32
7.4.12 To connect the power consumption digital inputs ...... 32
7.5 Finishing the indoor unit installation .......................................... 32
7.5.1 To fix the user interface cover to the indoor unit ........ 32
7.5.2 To close the indoor unit ............................................. 32
8Configuration .................................................... 33
8.1 Overview: Configuration ........................................................... 33
8.1.1 To connect the PC cable to the switch box ................ 33
8.1.2 To access the most used commands ........................ 33
8.1.3 To copy the system settings from the first to the
second user interface ................................................ 33
8.1.4 To copy the language set from the first to the second
user interface ............................................................. 34
8.1.5 Quick wizard: Set the system layout after first power
ON ............................................................................. 34
8.2 Basic configuration ................................................................... 34
8.2.1 Quick wizard: Language / time and date ................... 34
8.2.2 Quick wizard: Standard .............................................. 35
8.2.3 Quick wizard: Options ................................................ 36
8.2.4 Quick wizard: Capacities (energy metering) .............. 38
8.2.5 Space heating/cooling control .................................... 38
8.2.6 Domestic hot water control ........................................ 42
8.2.7 Contact/helpdesk number .......................................... 43
8.3 Advanced configuration/optimization ........................................ 43
8.3.1 Space heating/cooling operation: advanced .............. 43
8.3.2 Domestic hot water control: advanced ....................... 46
8.3.3 Heat source settings .................................................. 50
8.3.4 System settings ......................................................... 52
8.4 Menu structure: Overview ......................................................... 56
8.5 Menu structure: Overview installer settings .............................. 57
9Commissioning ................................................. 58
9.1 Overview: Commissioning ........................................................ 58
9.2 Checklist before test run ........................................................... 58
9.3 Air purge function ...................................................................... 58
9.3.1 To perform a manual air purge .................................. 58
9.3.2 To perform an automatic air purge ............................ 59
9.3.3 To interrupt air purge ................................................. 59
9.4 To perform a test run ................................................................ 59
9.5 To perform an actuator test run ................................................ 59
9.5.1 Possible actuator test runs ........................................ 59
9.6 Underfloor heating screed dryout ............................................. 59
9.6.1 To program an underfloor heating screed dryout
schedule .................................................................... 60
9.6.2 To start an underfloor heating screed dryout ............. 60
9.6.3 To readout the status of an underfloor heating
screed dryout ............................................................. 60
9.6.4 To interrupt an underfloor heating screed dryout ....... 60
10 Hand-over to the user ....................................... 60
11 Maintenance and service ................................. 60
11.1 Maintenance safety precautions ............................................... 60
11.1.1 Opening the indoor unit ............................................. 61
11.2 Checklist for yearly maintenance for indoor unit ....................... 61
11.2.1 To drain the domestic hot water tank ......................... 62
11.3 To drain the domestic hot water tank ........................................ 62

1 About the documentation
Installer reference guide
3
ERHQ011~016BA + ERLQ011~016CA + EHVH/X16S18+26CA
Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
12 Troubleshooting ................................................ 62
12.1 General guidelines .................................................................... 62
12.2 Solving problems based on symptoms ..................................... 62
12.2.1 Symptom: The unit is NOT heating or cooling as
expected .................................................................... 62
12.2.2 Symptom: The compressor does NOT start (space
heating or domestic water heating) ............................ 63
12.2.3 Symptom: The pump is making noise (cavitation) ..... 63
12.2.4 Symptom: The pressure relief valve opens ............... 63
12.2.5 Symptom: The water pressure relief valve leaks ....... 63
12.2.6 Symptom: The space is NOT sufficiently heated at
low outdoor temperatures .......................................... 63
12.2.7 Symptom: The pressure at the tapping point is
temporarily unusual high ............................................ 64
12.2.8 Symptom: Decoration panels are pushed away due
to a swollen tank ........................................................ 64
12.2.9 Symptom: Tank disinfection function is NOT
completed correctly (AH-error) .................................. 64
12.3 Solving problems based on error codes ................................... 64
12.3.1 Error codes: Overview ............................................... 64
13 Glossary ............................................................. 65
14 Technical data ................................................... 66
14.1 Dimensions and service space ................................................. 66
14.1.1 Dimensions and service space: Indoor unit ............... 66
14.2 Components ............................................................................. 68
14.2.1 Components: Indoor unit ........................................... 68
14.2.2 Components: Switch box (indoor unit) ....................... 68
14.3 Functional diagrams ................................................................. 70
14.3.1 Functional diagram: Indoor unit ................................. 70
14.4 Piping diagram .......................................................................... 71
14.4.1 Piping diagram: Indoor unit ........................................ 71
14.5 Wiring diagram .......................................................................... 72
14.5.1 Wiring diagram – components: Indoor unit ................ 72
14.6 Technical specifications ............................................................ 78
14.6.1 Technical specifications: Indoor unit .......................... 78
14.7 Operation range ........................................................................ 80
14.7.1 Operation range: Heating and cooling ....................... 80
14.7.2 Operation range: Domestic hot water ........................ 81
14.7.3 Drain pan necessity ................................................... 82
14.8 Sound spectrum ........................................................................ 83
14.8.1 Sound spectrum: Outdoor unit ................................... 83
14.9 ESP curve ................................................................................. 84
14.9.1 ESP curve: Indoor unit ............................................... 84
14.10 Performance ............................................................................. 85
14.11 Combination table ..................................................................... 88
1About the documentation
1.1 About this document
Target audience
Authorized installers
Documentation set
This document is part of a documentation set. The complete set
consists of:
Document Contains… Format
General
safety
precautions
Safety instructions that
you must read before
installing
Paper (in the box of the
indoor unit)
Indoor unit
installation
manual
Installation instructions
Outdoor unit
installation
manual
Installation instructions Paper (in the box of the
outdoor unit)
Document Contains… Format
Installer
reference
guide
Preparation of the
installation, technical
specifications, good
practices, reference data,
…
CD/DVD (in the box of the
indoor unit)
Addendum
book for
optional
equipment
Additional info about how
to install optional
equipment
Paper (in the box of the
indoor unit)
CD/DVD (in the box of the
indoor unit)
Latest revisions of the supplied documentation may be available on
the regional Daikin website or via your dealer.
2General safety precautions
2.1 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.
▪ All activities described in the installation manual must be
performed by an authorized installer.
2.1.1 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.
WARNING
Indicates a situation that could result in death or serious
injury.
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.
2.2 For the installer
2.2.1 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.

2 General safety precautions
Installer reference guide
4
ERHQ011~016BA + ERLQ011~016CA + EHVH/X16S18+26CA
Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
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.
NOTICE
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 aluminum 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.
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.
2.2.2 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.
▪ 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.
2.2.3 Refrigerant
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.
WARNING
Always recover the refrigerants. Do NOT release them
directly into the environment. Use a vacuum pump to
evacuate the installation.
2.2.4 Water
NOTICE
Make sure water quality complies with EU directive
98/83 EC.
2.2.5 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.

3 About the box
Installer reference guide
5
ERHQ011~016BA + ERLQ011~016CA + EHVH/X16S18+26CA
Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
WARNING
▪ Only use copper wires.
▪ 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.
Install power cables at least 1 meter away from televisions or radios
to prevent interference. Depending on the radio waves, a distance of
1 meter 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.
3About the box
▪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.
3.1 Indoor unit
3.1.1 To unpack the indoor unit
3.1.2 To remove the accessories from the
indoor unit
1Remove the screws at the top of the unit.
2Remove the top panel.
4x
3Remove the accessories.
a
1x
b
1x
c
1x
d
1x
g
2x
h
1x
f
1x
e
1x
aGeneral safety precautions

4 About the units and options
Installer reference guide
6
ERHQ011~016BA + ERLQ011~016CA + EHVH/X16S18+26CA
Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
bAddendum book for optional equipment
cIndoor unit installation manual
dOperation manual
eCD/DVD
fUser interface kit: user interface, 4 fixing screws, 2
plugs
gShut-off valve
hUser interface cover
4Reinstall the top panel.
4About the units and options
4.1 Identification
NOTICE
When installing or servicing several units at the same time,
make sure NOT to switch the service panels between
different models.
4.1.1 Identification label: Indoor unit
Location
Model identification
Example: E HV H 04 S 18 CA 3V
Code Description
EEuropean model
HV HV=Floor-standing indoor unit with integrated tank
H ▪ H=Heating only
▪ X=Heating/cooling
04 Capacity class:
▪ 04=4.5 kW
▪ 08=7.5 kW
▪ 16=16 kW
S Integrated tank material:
S=Stainless steel
18 Integrated tank volume:
▪ 18=180 l
▪ 26=260 l
CA Series
3V Backup heater model
▪ 3V
▪ 9W
4.2 Possible combinations of units and
options
4.2.1 List of options for indoor unit
User interface (EKRUCAL1, EKRUCAL2)
The user interface is delivered as an accessory with the unit. An
additional user interface is optionally available.
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
The additional user interface EKRUCAL1 contains the 6 common
languages: English, German, French, Dutch, Italian, Spanish.
The additional user interface EKRUCAL2 contains other languages:
English, Swedish, Norwegian, Czech, Turkish, Portuguese.
Languages on the user interface can be uploaded by PC software or
copied from an user interface to the other.
For installation instructions, see "7.4.5 To connect the user interface"
on page 30.
Room thermostat (EKRTWA, EKRTR1)
You can connect an optional room thermostat to the indoor unit. This
thermostat can either be wired (EKRTWA) or wireless (EKRTR1).
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/cooling On/OFF output
▪ Changeover to external heat source
▪ Only for EHVH/X16 models: 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.

5 Application guidelines
Installer reference guide
7
ERHQ011~016BA + ERLQ011~016CA + EHVH/X16S18+26CA
Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
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 Daikin Extranet.
For installation instructions, see the installation manual of the PC
cable.
4.2.2 Possible combinations of indoor unit and outdoor unit
Outdoor unit Indoor unit
EHVH16S18CA3V EHVX16S18CA3V EHVH16S26CA9W EHVX16S26CA9W
ERHQ011BAV3 O O O O
ERHQ014BAV3 O O O O
ERHQ016BAV3 O O O O
ERLQ011CAV3 O O O O
ERLQ014CAV3 O O O O
ERLQ016CAV3 O O O O
ERHQ011BAW1 O O O O
ERHQ014BAW1 O O O O
ERHQ016BAW1 O O O O
ERLQ011CAW1 O O O O
ERLQ014CAW1 O O O O
ERLQ016CAW1 O O O O
5Application guidelines
5.1 Overview: Application guidelines
The purpose of the application guidelines is to give a glance of the
possibilities of the Daikin heat pump 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 heat pump operation, see "8 Configuration" on
page 33.
This chapter contains applications guidelines for:
▪ Setting up the space heating/cooling 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/cooling
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 (or cooled) by the Daikin heat pump
system?
▪ Which heat emitter types are used in each room and what is their
design leaving water temperature?
Once the space heating/cooling requirements are clear, Daikin
recommends to follow the setup guidelines below.
5.2.1 Single room
Under floor heating or radiators – Wired room
thermostat
Setup
B
A
a
AMain leaving water temperature zone
BOne single room
aUser interface used as room thermostat

5 Application guidelines
Installer reference guide
8
ERHQ011~016BA + ERLQ011~016CA + EHVH/X16S18+26CA
Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
▪ The under floor 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 (standard equipment) installed in the room and
used as room thermostat
▪ User interface (standard equipment) installed at the indoor unit
and used for control close to the indoor unit + user interface
(optional equipment EKRUCAL) 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)
▪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…
Under floor 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 under floor 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]
Configure according to the setup:
▪ 1 (Thermo ON/OFF): When
the used external room
thermostat or heat pump
convector can only send a
thermo ON/OFF condition. No
separation between heating or
cooling demand.
▪ 2 (C/H request): When the
used external room thermostat
can send a separate heating/
cooling 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 heat pump
system.
▪Comfort. In case of under floor heating, the wireless external
room thermostat prevents condensation on the floor during cooling
operation by measuring the room humidity.
Heat pump convectors
Setup
B
A
a
AMain leaving water temperature zone
BOne single room
aRemote controller of the heat pump convectors
▪ The heat pump convectors are directly connected to the indoor
unit.
▪ The desired room temperature is set via the remote controller of
the heat pump convectors.
▪ The space heating/cooling 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 on the indoor unit (X2M/33 and X2M/34).
INFORMATION
When using multiple heat pump convectors, make sure
each one receives the infrared signal from the remote
controller of the heat pump convectors.

5 Application guidelines
Installer reference guide
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Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
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
heat pump convector can only
send a thermo ON/OFF
condition. No separation between
heating or cooling demand.
Benefits
▪Cooling. The heat pump convector offers, besides heating
capacity, also excellent cooling capacity.
▪Efficiency. Optimal energy efficiency because of the interlink
function.
▪Stylish.
Combination: Under floor heating + Heat pump
convectors
▪ Space heating is provided by:
▪ The under floor heating
▪ The heat pump convectors
▪ Space cooling is provided by the heat pump convectors only. The
under floor heating is shut off by the shut-off valve.
Setup
B
A
a
M1
AMain leaving water temperature zone
BOne single room
aRemote controller of the heat pump convectors
▪ The heat pump convectors are directly connected to the indoor
unit.
▪ A shut-off valve (field supply) is installed before the under floor
heating to prevent condensation on the floor during cooling
operation.
▪ The desired room temperature is set via the remote controller of
the heat pump convectors.
▪ The space heating/cooling demand signal is sent to one digital
input on the indoor unit (X2M/1 and X2M/4)
▪ The space operation mode is sent by one digital output (X2M/33
and X2M/34) on the indoor unit to:
▪ The heat pump convectors
▪ The shut-off valve
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
heat pump convector can only
send a thermo ON/OFF
condition. No separation between
heating or cooling demand.
Benefits
▪Cooling. Heat pump convectors provide, besides heating
capacity, also excellent cooling capacity.
▪Efficiency. Under floor heating has the best performance with
Altherma LT.
▪Comfort. The combination of the two heat emitter types provides:
▪ The excellent heating comfort of the under floor heating
▪ The excellent cooling comfort of the heat pump convectors
5.2.2 Multiple rooms – One LWT 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.
Under floor heating or radiators – Thermostatic
valves
If you are heating up rooms with under floor 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 under floor 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 under floor heating in
each of the other rooms.

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Installer reference guide
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Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
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.
Under floor heating or radiators – Multiple external
room thermostats
Setup
M2M1
B C
A
a a
b
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 or cooling demand.
▪ A bypass valve must be installed to make water recirculation
possible when all shut-off valves are closed.
▪ 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.
Number of water temperature
zones:
▪ #: [A.2.1.8]
▪ Code: [7-02]
0 (1 LWT zone): Main
Benefits
Compared with under floor heating or radiators for one room:
▪Comfort. You can set the desired room temperature, including
schedules, for each room via the room thermostats.
Heat pump convectors
Setup
B
A
a a
C
AMain leaving water temperature zone
BRoom 1
CRoom 2
aRemote controller of the heat pump convectors
▪ The desired room temperature is set via the remote controller of
the heat pump convectors.
▪ The user interface connected to the indoor unit decides the space
operation mode.
▪ The heating or cooling 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 heat pump
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 heat pump convectors for one room:
▪Comfort. You can set the desired room temperature, including
schedules, for each room via the remote controller of the
heat pump convectors.

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Installer reference guide
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Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
Combination: Under floor heating + Heat pump
convectors
Setup
b
B C
A
a
M1
M1
AMain leaving water temperature zone
BRoom 1
CRoom 2
aExternal room thermostat
bRemote controller of the heat pump 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: Two shut-off valves (field
supply) are installed before the under floor heating:
▪ A shut-off valve to prevent hot water supply when the room has
no heating demand
▪ A shut-off valve to prevent condensation on the floor during
cooling operation of the rooms with heat pump convectors
▪ 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 heat pump
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 – Two LWT 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 in heating,
and the highest design temperature in cooling
▪ Additional zone = The other zone
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)/increase (in cooling) the leaving
water temperature when the additional zone has demand.
Typical example:
Room (zone) Heat emitters: Design
temperature
Living room (main zone) Under floor heating:
▪ In heating: 35°C
▪ In cooling: 20°C (only
refreshment, no real cooling
allowed)
Bed rooms (additional zone) Heat pump convectors:
▪ In heating: 45°C
▪ In cooling: 12°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 heat pump 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 under floor 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.

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Installer reference guide
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4P313777-1C – 2012.11
▪ For the additional zone:
▪ The heat pump convectors are directly connected to the indoor
unit.
▪ The desired room temperature is set via the remote controller of
the heat pump convectors for each room.
▪ The heating or cooling 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
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 heat pump 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
heat pump convector can only
send a thermo ON/OFF
condition. No separation between
heating or cooling demand.
Shut-off valve output Set to follow the thermo demand
of the main zone.
Shut-off valve If the main zone must be shut off
during cooling mode to prevent
condensation on the floor, set it
accordingly.
At the mixing valve station Set the desired main leaving
water temperature for heating
and/or cooling.
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
excellent cooling comfort of the heat pump convectors.
▪Efficiency.
▪Depending on the demand, the indoor unit supplies different
leaving water temperature matching the design temperature of
the different heat emitters.
▪ Under floor 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.
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.

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Installer reference guide
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Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
Setup
▪ Integrate the auxiliary boiler as follows:
Only for EHBH/X
a b c d e f g h j
FHL1
FHL2
FHL3
M
h
i
il
k
f
m
n
Only for EHVH/X
a b c d e f
f
g h j
FHL1
FHL2
FHL3
M
h
i
il
k
m
n
aOutdoor unit
bIndoor unit
cHeat exchanger
dBackup 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 (EHBH/X: option)
nHeat exchanger coil
FHL1...3 Under floor 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 heat pump 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
heat pump.
▪ 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 "5.2 Setting up the space heating/
cooling system" on page 7.
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/cooling system" on page 7).
▪ 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)

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Installer reference guide
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Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
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.
5.4 Setting up the domestic hot water tank
The DHW tank can be:
▪ Integrated in the indoor unit
▪ Installed standalone as option
5.4.1 System layout – Integrated DHW tank
Only for EHVH/X.
FHL1
FHL2
FHL3
M
UI
a b c d hh if
e
g
aOutdoor unit
bIndoor unit
cHeat exchanger
dBackup heater
ePump
fMotorised 3‑way valve
gDHW tank
hShut-off valve
iCollector (field supply)
FHL1...3 Under floor heating
UI User interface
5.4.2 System layout – Standalone DHW tank
Only for EHBH/X.
FHL1
FHL2
FHL3
M
a b c d e hf g
f
i j
aOutdoor unit
bIndoor unit
cHeat exchanger
dBackup heater
ePump
fShut-off valve
gMotorised 3‑way valve
hCollector (field supply)
iDHW tank
jHeat exchanger coil
FHL1...3 Under floor heating
5.4.3 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
Integrated DHW tank ▪ 180 l
▪ 260 l
Standalone DHW tank ▪ 150 l
▪ 200 l
▪ 300 l
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 heat pump itself can produce domestic hot water of maximum
55°C (50°C if outdoor temperature is low). The electrical
resistance integrated in the heat pump can higher 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.

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4P313777-1C – 2012.11
▪ The higher the outdoor temperature, the better the performance of
the heat pump.
▪ 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 heat pump 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?
1 shower = 10 min x 10 l/min =
100 l
How many baths are needed per
day?
1 bath = 150 l
How much water is needed at the
kitchen sink per day?
1 sink = 2 min x 5 l/min = 10 l
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 = (3x100 l) + (1x150 l) + (3x10 l) = 480 l
Determining the volume and desired temperature for the DHW
tank
Formula Example
V1 = V2 + V2 x (T2−40) / (40−T1) If:
▪ V2 = 180 l
▪ T2 = 54°C
▪ T1 = 15°C
Then V1 = 280 l
V2 = V1 x (40−T1) / (T2−T1) If:
▪ V1 = 480 l
▪ T2 = 54°C
▪ T1 = 15°C
Then V2 = 307 l
V1:DHW consumption (equivalent hot water volume at 40°C)
V2:Required DHW tank volume if only heated once
T2:DHW tank temperature
T1:Cold water temperature
5.4.4 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 heat pump
▪ Electrical backup heater (for integrated DHW tank)
▪ Electrical booster heater (for standalone DHW tank)
▪ Solar panels
▪ For more information about:
▪ Optimizing the energy consumption for producing domestic hot
water, see "8 Configuration" on page 33.
▪ Connecting the electrical wiring of the standalone DHW tank to
the indoor unit, see the installation manual of the DHW tank.
▪ Connecting the water piping of the standalone DHW tank to the
indoor unit, see the installation manual of the DHW tank.
5.4.5 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 flow meter 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.
Heating system
Example of unit
5.4.6 DHW pump for instant hot water
Setup
c
f
a
b
g
h
i
aIndoor unit
bDHW tank
cDHW pump
fShower
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.

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Installer reference guide
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Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
▪ For more information about connecting the recirculation
connection:
▪ for integrated DHW tank, see "7 Installation" on page 24,
▪ for separate DHW tank, see installation manual of DHW tank.
Configuration
▪ For more information, see "8 Configuration" on page 33.
▪ You can program a schedule to control the DHW pump via the
user interface. For more information, see the user reference
guide.
5.4.7 DHW pump for disinfection
Setup
c
a
b
d f
e g
h
i
aIndoor unit
bDHW tank
cDHW pump
dHeater element
eNon‑return valve
fShower
gCold water
hDomestic hot water OUT
iRecirculation connection
▪ The DHW pump and the installation are field supply and the
responsibility of the installer.
▪ For the integrated DHW tank, 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 "8 Configuration" on page 33.
5.5 Setting up the energy metering
▪ Via the user interface, you can read out the following energy data:
▪ Produced heat
▪ Consumed energy
▪ You can read out the energy data:
▪ For space heating
▪ For space cooling
▪ 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
▪ 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 booster heater (if applicable) in
the domestic hot water tank
▪ Setup and configuration:
▪ No additional equipment needed.
▪ Only in case a booster heater is present in the system, measure
its capacity (resistance measurement) and set the capacity via
the user interface. Example: If you measure a booster heater
resistance of 17.1 Ω, the capacity of the heater at 230 V is
3100 W.
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) 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 EHBH/X04+08 and EHVH/X04+08.
▪ The consumed energy is calculated internally based on:
▪ The actual power input of the outdoor unit
▪ The set capacity of the backup heater and booster 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 (step 1 and step 2)
▪ The booster heater
Measuring the consumed energy
▪ Applicable for all models.
▪ Preferred method because of higher accuracy.
▪ Requires external power meters.
▪ Setup and configuration:
▪ For the specifications of each type of meter, see "14 Technical
data" on page 66.
▪ When using electrical power meters, set the number of
pulses/kWh for each power meter via the user interface.
Consumed energy data for EHVH/X16 and EHBH/X16 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.

5 Application guidelines
Installer reference guide
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Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
Power meter type
In case of… Use a… power meter
▪ Single-phase outdoor unit
▪ Backup heater supplied from a
single-phase grid (i.e. the
backup heater model is *3V or
*9W connected to a single-
phase grid)
Single-phase
In other cases (i.e. a three-phase
outdoor unit and/or a *9W
backup heater model 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 Booster 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 Booster heater (L1/N)
Exception
▪ You can use a second power meter if:
▪ The power range of one meter is insufficient.
▪ The electrical meter cannot easily be installed in the electrical
cabinet.
▪ 230 V and 400 V three-phase grids are combined (very
uncommon), because of technical limitations of power meters.
▪ Connection and setup:
▪ Connect the second power meter to X5M/9 and X5M/10.
▪ In the software the power consumption data of both meters is
added so you do NOT have to set which meter covers which
power consumption. You only need to set the number of pulses
of each power meter.
▪ See "5.5.4 Preferential kWh rate power supply" on page 17 for
an example with two power meters.
5.5.4 Preferential kWh rate power supply
General rule
▪ Power meter 1: Measures the outdoor unit.
▪ Power meter 2: Measures the rest (i.e. indoor unit, backup heater
and optional booster heater).
Setup
▪ Connect power meter 1 to X5M/7 and X5M/8.
▪ Connect power meter 2 to X5M/9 and X5M/10.
Power meter types
▪Power meter 1: Single- or three-phase power meter according to
the power supply of the outdoor unit.
▪ Power meter 2:
▪ In case of a single-phase backup heater configuration, use a
single-phase power meter.
▪ In other cases, use a three-phase power meter.
Example
Single-phase outdoor unit with a three-phase backup heater:
580150
0
0
e ef
ihg j
A B C
ba
d

580150
0
0
c
AOutdoor unit
BIndoor unit
CDHW tank
aElectrical cabinet (L1/N): Preferential kWh rate power
supply
bElectrical cabinet (L1/L2/L3/N): Normal kWh rate
power supply
cPower meter (L1/N)
dPower meter (L1/L2/L3/N)
eFuse (L1/N)
fFuse (L1/L2/L3/N)
gOutdoor unit (L1/N)
hIndoor unit (L1/L2/L3/N)
iBackup heater (L1/L2/L3/N)
jBooster heater (L1/N)
5.6 Setting up the power consumption control
▪ The power consumption control:
▪ Is only applicable for EHBH/X04+08 and EHVH/X04+08.
▪ Allows you to limit the power consumption of the entire system
(sum of outdoor unit, indoor unit, backup heater and optional
booster heater).
▪ Configuration: Set the power limitation level and how it has to
be achieved via the user interface.
▪ The power limitation level can be expressed as:
▪ Maximum running current (in A)
▪ Maximum power input (in kW)
▪ The power limitation level can be activated:
▪ Permanently
▪ By digital inputs

5 Application guidelines
Installer reference guide
18
ERHQ011~016BA + ERLQ011~016CA + EHVH/X16S18+26CA
Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
INFORMATION
Power consumption control CANNOT be used in
applications with booster heater.
5.6.1 Permanent power limitation
Permanent power limitation is useful to assure a maximum power or
current input of the system. In some countries, legislation limits the
maximum power consumption for space heating and DHW
production. Example: The maximum power input depends on the
area of the house and an annual fee has to be paid to the electrical
company according to the size of the installed field fuse. By
permanently limiting the maximum power or current of the system,
you can install smaller field fuses.
NOTICE
When the current control is intended to reduce the installed
field fuse sizes, the field fuse will trip to protect the field
wires in case of overcurrents caused by the unit. Make
sure the selection of the field fuse complies with applicable
legislation.
Pi
t
DI a
b
PiPower input
tTime
DI Digital input (power limitation level)
aPower limitation active
bActual power input
Setup and configuration
▪ No additional equipment needed.
▪ Set the power consumption control settings in [A.6.3.1] via the
user interface (for the description of all settings, see
"8 Configuration" on page 33):
▪ Select full time limitation mode
▪ Select the type of limitation (power in kW or current in A)
▪ Set the desired power limitation level
NOTICE
Mind the following guidelines when selecting the desired
power limitation level:
▪ Set a minimum power consumption of ±3.6 kW to
guarantee defrost operation. Otherwise, if defrosting is
interrupted several times, the heat exchanger will
freeze up.
▪ Set a minimum power consumption of ±3 kW to
guarantee space heating and DHW production by
allowing at least one electrical heater (backup heater
step 1 or booster heater).
5.6.2 Power limitation activated by digital
inputs
Power limitation is also useful in combination with an energy
management system.
The power or current of the entire Daikin system is limited
dynamically by digital inputs (maximum four steps). Each power
limitation level is set via the user interface by limiting one of the
following:
▪ Current (in A)
▪ Power input (in kW)
The energy management system (field supply) decides the activation
of a certain power limitation level. Example: To limit the maximum
power of the entire house (lighting, domestic appliances, space
heating…).
a
bc
A B C
D
1
2
3
4
5
A8P
AOutdoor unit
BIndoor unit
CDHW tank
DEnergy management system
aPower limitation activation (4 digital inputs)
bBackup heater
cBooster heater
Pi
t
DI1
DI3
DI4 a
b
PiPower input
tTime
DI Digital inputs (power limitation levels)
aPower limitation active
bActual power input
Setup
▪ Demand PCB (option EKRP1AHTA) needed.
▪ Maximum four digital inputs are used to activate the
corresponding power limitation level:
▪ DI1 = weakest limitation (highest energy consumption)
▪ DI4 = strongest limitation (lowest energy consumption)
▪ For the specification and the connection of the digital inputs, see
"14.5 Wiring diagram – components: Indoor unit" on page 72.
Configuration
Set the power consumption control settings in [A.6.3.1] via the user
interface (for the description of all settings, see "8 Configuration" on
page 33):
▪ Select activation by digital inputs.
▪ Select the type of limitation (power in kW or current in A).
▪ Set the desired power limitation level corresponding to each digital
input.
INFORMATION
In case more than 1 digital input is closed (at the same
time), the digital input priority is fixed: DI4 priority>…>DI1.
5.6.3 Power limitation process
The outdoor unit has better efficiency than the electrical heaters.
Therefore, the electrical heaters are limited and turned OFF first.
The system limits power consumption in the following order:
1 Limits certain electrical heaters.

6 Preparation
Installer reference guide
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Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
If… has priority Then set the heater priority
via the user interface to…
Domestic hot water production Booster heater.
Result: The backup heater will
be turned OFF first.
Space heating Backup heater.
Result: The booster heater will
be turned OFF first.
2 Turns OFF all electrical heaters.
3 Limits the outdoor unit.
4 Turns OFF the outdoor unit.
Example
If the configuration is as follows:
▪ Power limitation level does NOT allow operation of both booster
heater and backup heater (step 1 and step 2).
▪ Heater priority = Booster heater.
Then power consumption is limited as follows:
Ph
Ce
a
b
c
d
e
A B C
PhProduced heat
CeConsumed energy
AOutdoor unit
BBooster heater
CBackup heater
aLimited outdoor unit operation
bFull outdoor unit operation
cBooster heater turned ON
dBackup heater step 1 turned ON
eBackup heater step 2 turned ON
5.7 Setting up an external temperature sensor
You can connect one external temperature sensor. It can measure
the indoor or outdoor ambient temperature. Daikin recommends to
use an external temperature sensor in the following cases:
Indoor ambient temperature
▪In room thermostat control, the user interface is used as room
thermostat and it measures the indoor ambient temperature.
Therefore, the user interface must be installed on a location:
▪ Where the average temperature in the room can be detected
▪ That is NOT exposed to direct sunlight
▪ That is NOT near a heat source
▪ That is NOT affected by outside air or air draught because of,
for example, door opening/closing
▪ If this is NOT possible, Daikin recommends to connect a remote
indoor sensor (option KRCS01-1).
▪ Setup: For installation instructions, see the installation manual of
the remote indoor sensor.
▪ Configuration: Select room sensor [A.2.2.B].
Outdoor ambient temperature
▪In the outdoor unit, the outdoor ambient temperature is measured.
Therefore, the outdoor unit must be installed on a location:
▪ At the north side of the house or at the side of the house where
the most heat emitters are located
▪ That is NOT exposed to direct sunlight
▪ If this is NOT possible, Daikin recommends to connect a remote
outdoor sensor (option EKRSCA1).
▪ Setup: For installation instructions, see the installation manual of
the remote indoor sensor.
▪ Configuration: Select outdoor sensor [A.2.2.B].
▪ During suspend (see "8 Configuration" on page 33), the outdoor
unit is turned down to reduce the standby energy losses. As a
result, the outdoor ambient temperature is NOT read out.
▪ If the desired leaving water temperature is weather dependent, the
full time outdoor temperature measurement is important. This is
another reason to install the optional outdoor ambient temperature
sensor.
INFORMATION
The external outdoor ambient sensor data (either averaged
or instantaneous) is used in the weather-dependent control
curves and in the automatic heating/cooling changeover
logic. To protect the outdoor unit, the internal sensor of the
outdoor unit is always used.
6Preparation
6.1 Preparing 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 the installation location with sufficient place for carrying the
unit in and out of the site.
6.1.1 Installation site requirements of the
indoor unit
▪ Mind the measurement guidelines:
Maximum refrigerant piping length between indoor
unit and outdoor unit
75 m(a)
Minimum refrigerant piping length between indoor
unit and outdoor unit
3 m(b)
Maximum height difference between indoor unit and
outdoor unit
30 m
(a) Check the outdoor unit installation manual.
(b) When <5 m, you need to recharge the outdoor unit (check the outdoor
unit installation manual).
▪ Mind the following spacing installation guidelines:

6 Preparation
Installer reference guide
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ERHQ011~016BA + ERLQ011~016CA + EHVH/X16S18+26CA
Daikin Altherma - Low Temperature Split
4P313777-1C – 2012.11
>500
>10>10
(mm)
Do NOT install the unit in places such as:
▪ Where there is mist of mineral oil, oil spray or vapour.
Plastic parts may deteriorate, and cause them to fall out or water
to leak.
▪ Do NOT install the unit in sound sensitive areas (e.g. near a
bedroom and the like), so that the operation noise will cause no
trouble.
Note: If the sound is measured under actual installation
conditions, the measured value will be higher than the sound
pressure level mentioned in "14.8 Sound spectrum" on page 83
due to environmental noise and sound reflections.
▪ The foundation must be strong enough to bear the weight of the
unit. Take the weight of the unit with a domestic hot water tank full
of water into account.
Make sure, in the event of a water leak, water cannot cause any
damage to the installation space and surroundings.
▪ In places with high humidity (max. RH=85%), for example a
bathroom.
▪ In places where frost is possible. Ambient temperature around the
indoor unit should be >5°C.
▪ The indoor unit is designed for indoor installation only and for
ambient temperatures ranging 5~35°C in cooling mode and
5~30°C in heating mode.
6.2 Preparing water piping
6.2.1 Water circuit requirements
▪ Use the indoor unit only in a closed water system.
Using the system in an open water system will lead to excessive
corrosion.
▪ The maximum water pressure is 4 bar.
Provide adequate safeguards in the water circuit to ensure that
the maximum pressure is NOT exceeded.
▪ All installed piping and piping accessories (valve, connections,…)
must withstand the following temperatures:
INFORMATION
The following illustration is an example and may NOT
match your system layout.
M
M
HPC1
HPC2
HPC3
FHL1
FHL2
FHL3
a
b
c d
e f
g f h
i
i
i
i
j k
89°C
65°C
aOutdoor unit
bIndoor unit
cHeat exchanger
dBackup heater
ePump
fStop valve
gMotorised 3-way valve
hMotorised 2-way valve (field supply)
iCollector
jDomestic hot water tank
kHeat exchanger coil
HPC1...3 Heat pump convector (optional)
FHL1...3 Floor heating loop
▪ Make all water piping connections in accordance with the
applicable legislation and the outlook diagram that is delivered
with the unit, respecting the water inlet and outlet.
▪ Do NOT use excessive force when connecting the piping.
Deformation of the piping can cause malfunctioning of the unit.
▪ Provide drain taps at all low points of the system in order to allow
complete drainage of the water circuit.
▪ Provide a proper drain for the pressure relief valve to avoid water
dripping out of the unit. See "7.3.2 To connect the pressure relief
valve to the drain" on page 26.
▪ Provide air vents at all high points of the system, which must also
be easily accessible for servicing. An automatic air purge is
provided in the indoor unit. Check that the air purge is NOT
tightened too much, so that automatic release of air in the water
circuit is possible.
▪ Only use materials that are compatible with water used in the
system and with the materials used in the indoor unit.
▪ Check that all components in the field piping can withstand the
water pressure and water temperature.
▪ 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.
▪ Never use Zn-coated parts in the water circuit. Because the unit's
internal water circuit uses copper piping, excessive corrosion may
occur.
▪ Only use appropriate tooling to handle brass, which is a soft
material. If NOT, pipes will get damaged.