Daikin EHSX04P30D, EHSX04P50D, EHSH04P30D, EHSX08P30D, EHSX08P50D Installation manuals

Installation and

maintenance in-

structions

Daikin Altherma integrated solar unit

EHSX(B)04P30D
EHSX(B)04P50D
EHSH(B)04P30D

Istruzioni per l'installazione e la manutenzione

EHSX(B)08P30D
EHSX(B)08P50D
EHSH(B)08P30D
EHSH(B)08P50D

Installation and maintenance instructions

Daikin Altherma integrated solar unit

Installations- und Wartungsanleitung
Daikin Altherma integrated solar unit

Instructions d'installation et de maintenance

Daikin Altherma integrated solar unit

Installatie- en onderhoudshandleiding

Daikin Altherma integrated solar unit

Instrucciones de instalación y mantenimiento

Daikin Altherma integrated solar unit

Daikin Altherma integrated solar unit

Manual de instalação e manutenção
Daikin Altherma integrated solar unit

Installations- och underhållsanvisning

Daikin Altherma integrated solar unit

English

Deutsch

Français

Nederlands

Español

Italiano

Portugues

Svenska

07/2018

Návod k instalaci a údržbě

Daikin Altherma integrated solar unit

čeština

List of contents

List of contents

1 General safety precautions 2

1.1 Particular safety instructions ..................................................... 2

1.1.1 Observing the instructions .......................................... 2

1.1.2 Meaning of warnings and symbols.............................. 3

1.2 Safety instructions for installation and operation....................... 3

1.2.1 General ....................................................................... 3

1.2.2 Intended use ............................................................... 4

1.2.3 Device installation room.............................................. 4

1.2.4 Electrical installation ................................................... 4

1.2.5 Requirements for the heating water............................ 4

1.2.6 Heating system and sanitary connection .................... 5

1.2.7 Operation .................................................................... 5

2 Handover to operator and warranty 6

2.1 Instruct the owner...................................................................... 6

2.2 Warranty conditions................................................................... 6

3 Product description 7

3.1 Design and components............................................................ 7

3.2 Function of the 3-way switch valves.......................................... 10

4 Set-up and installation 11

4.1 Dimensions and connection dimensions ................................... 11

4.2 Transport and delivery............................................................... 13

4.3 Installing the heat pump ............................................................ 13

4.3.1 Selecting the installation site....................................... 13

4.3.2 Installing the device .................................................... 14

4.4 Preparing the device for installation .......................................... 15

4.4.1 Remove the front screen............................................. 15

4.4.2 Remove the protective cover ...................................... 15

4.4.3 Moving the controller housing to the service position . 15

4.4.4 Open the controller housing........................................ 16

4.4.5 Removing the bottom thermal insulation..................... 16

4.4.6 Opening the vent valve ............................................... 17

4.4.7 Aligning the connections of the heating inflow and

return flow ................................................................... 17

4.4.8 Making the hood opening............................................ 18

4.4.9 Installing the rotary switch of the controller................. 19

4.5 Installing optional accessories................................................... 19

4.5.1 Installation of the electric backup heater..................... 19

4.5.2 Installation of the external heat generator connection

set ............................................................................... 19

4.5.3 Installation of the DB connection kit............................ 19

4.5.4 Installation of the P connection kit .............................. 20

4.6 Water connection ...................................................................... 20

4.6.1 Connecting hydraulic lines.......................................... 20

4.6.2 Connecting the drain................................................... 21

4.7 Electrical connection ................................................................. 22

4.7.1 Overall connection diagram ........................................ 23

4.7.2 Position of the printed circuit boards and terminal

strips ........................................................................... 24

4.7.3 Mains connection........................................................ 24

4.7.4 General information on the electrical connection........ 24

4.7.5 Connecting the heat pump outdoor unit...................... 24

4.7.6 Connecting the outside temperature sensor

(optional) ..................................................................... 25

4.7.7 External switching contact .......................................... 25

4.7.8 EBA (external requirement request) ........................... 25

4.7.9 Connecting an external heat generator....................... 25

4.7.10 Connecting the room thermostat................................. 26

4.7.11 Connection of optional RoCon system components ... 27

4.7.12 Connecting the HP convector ..................................... 27

4.7.13 Connecting switching contacts (AUX outputs) ............ 28

4.7.14 Off-peak mains connection (HT/NT) ........................... 28

4.7.15 Connecting an intelligent controller (Smart Grid - SG) 29

4.8 Connection for refrigerant........................................................... 29

4.8.1 Laying refrigerant lines................................................. 29

4.8.2 Pressure test and filling the refrigerant circuit.............. 30

4.9 Filling the system........................................................................ 30

4.9.1 Checking the water quality and adjusting the

pressure gauge ............................................................ 30

4.9.2 Filling hot water heat exchangers ................................ 30

4.9.3 Filling the storage tank................................................. 30

4.9.4 Filling the heating system ............................................ 30

5 Start-up 31

5.1 Initial commissioning .................................................................. 31

5.1.1 Requirements............................................................... 31

5.1.2 Starting the unit and start-up........................................ 31

5.1.3 Bleeding the hydraulic system ..................................... 31

5.1.4 Checking the minimum flow......................................... 32

5.1.5 Setting the screed program parameter (only as

required)....................................................................... 32

5.2 Re-commissioning...................................................................... 32

5.2.1 Requirements............................................................... 32

5.2.2 Start-up ........................................................................ 33

6 Hydraulic connection 34

6.1 Hydraulic system connection...................................................... 34

7 Inspection and maintenance 36

7.1 General overview of inspection and maintenance...................... 36

7.2 Inspection and maintenance tasks ............................................. 37

7.2.1 Filling, topping up the storage tank.............................. 37

7.2.2 Filling, topping up the heating system.......................... 38

8 Faults and malfunctions 40

8.1 Troubleshooting.......................................................................... 40

8.2 Overview of possible malfunctions ............................................. 40

8.3 Fault codes................................................................................. 43

8.4 Emergency operation ................................................................. 53

9 Taking out of operation 54

9.1 Temporary shutdown.................................................................. 54

9.1.1 Draining the storage tank............................................. 54

9.1.2 Draining the heating circuit and hot water circuit ......... 55

9.2 Final shutdown and disposal ...................................................... 55

10 Technical data 57

10.1 Basic data................................................................................... 57

10.2 Characteristic lines ..................................................................... 58

10.2.1 Sensor characteristic lines ........................................... 58

10.2.2 Characteristic curves for pumps .................................. 59

10.3 Tightening torque ....................................................................... 59

10.4 Minimum floor area and ventilation openings ............................. 59

10.5 Electrical connection diagram .................................................... 61

List of keywords 63

Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN

Installation and maintenance instructions

1

1 General safety precautions

1 General safety precautions

1.1 Particular safety instructions

WARNING

Devices that have not been set up and
installed correctly can impair the func­tion of the device and/or cause serious
or fatal injury to the user.

▪ Work on the Daikin Altherma EHS(X/

H) (such as set-up, inspection, con­nection and initial commissioning)
must only be carried out by persons
who are authorised and who have
successfully completed qualifying

technical or vocational training

and who have taken part in ad­vanced training sessions recognised
by the relevant authorities respons­ible for the specific activity. These in­clude, in particular, certified heating

engineers, qualified electricians
and HVAC specialists who, be-

cause of their professional training
and expert knowledge, have exper­ience in the professional installation
and maintenance of heating, cooling
and air conditioning systems as well
as hot water storage tanks.

WARNING

Disregarding the following safety in­structions may result in serious phys­ical injury or death.

▪ This device must only be used by

children aged 8 and above and by
persons with restricted physical,
sensory or mental capabilities or with
a lack of experience and knowledge,
if they are under supervision or if
they have been instructed in the safe
use of the equipment and under­stand the dangers arising therefrom.
Children must not play with the
device. Cleaning and user mainten-

ance must not be carried out by
children without supervision.

▪ Make up the power supply in accord-

ance with IEC 60335-1, via a separ­ator device which exhibits contact
separation in all poles with a contact
opening distance that provide full
disconnection in accordance with
overvoltage category III.

▪ All the electrical work must only be

carried out by electrically qualified
experts and with consideration of the
local and national regulations, and
the instructions in this manual.
Check that a suitable electrical cir­cuit is being used.
Inadequate capacity of the power cir­cuit or improperly executed connec­tions can cause electrocution or fire.

▪ The customer must install a pressure

relief device with rated over-pressure
less than 0.6MPa (6bar). The con­nected drain line must have a con­tinuous gradient and a free outlet in
a frost-free environment (seeChap.

4.3).

▪ Water may drip out of the drain line

of the pressure relief device. The
drain opening must be left free to at­mosphere.

▪ The pressure relief device must be

operated regularly in order to re­move scale deposits and to make
sure it is not blocked.

▪ The storage tank and hot water cir-

cuit can be drained. The instructions
in chap. must be observed.

1.1.1 Observing the instructions

▪ The original documentation is written in German. All other lan-

guages are translations.

▪ Please read this manual carefully and thoroughly before proceed-

ing with the installation or modification of the heating system.

▪ The precautionary measures described in this document cover

very important topics. Follow them meticulously.

▪ The installation of the system, and all activities described in this

manual and the applicable documents for the installer must be
carried out by an approved installer.

Installation and maintenance instructions

2

Daikin Altherma integrated solar unit

Daikin Altherma EHS(X/H)

008.1444099_00 – 07/2018 – EN

1 General safety precautions

This manual provides all the necessary information for installation,
start-up and maintenance, as well as basic information on operation
and settings. Please see the attached documents for a detailed de­scription of operation and control.

All heating parameters needed for smooth operation are already
factory-set. Please refer to other relevant documents for information
on setting the control.

Relevant documents

▪ Daikin Altherma EHS(X/H):

▪ Installation instructions
▪ Start-up checklist
▪ Heat pump operating manual

▪ RoCon+ HP:

▪ Installation instructions

▪ Operating instructions
▪ Outdoor unit: Installation instructions
▪ Room station EHS157034 and mixer module EHS157068: Operat-

ing instructions
▪ Other optional accessories and optional system components: As-

sociated installation and operating instructions
The guides are included in the scope of supply for the individual

devices.

1.1.2 Meaning of warnings and symbols

Warnings in this manual are classified according into their severity
and probability of occurrence.

DANGER

Indicates an immediate danger.
Disregarding this warning can lead to serious injury or

death

WARNING

Indicates a potentially dangerous situation
Disregarding this warning may result in serious physical in-

jury or death.

CAUTION

Indicates a situation which may cause possible damage
Disregarding this warning can cause damage to property

and the environment, and result in minor injuries.

This symbol identifies user tips and particularly useful in­formation, but not warnings or hazards

Special warning signs

Some types of danger are represented by special symbols:

Electric current

Danger of explosion

Risk of burning or scalding

Risk of poisoning

Validity

Some information in this manual has limited validity. The validity is
highlighted by a symbol.

Exterior heat pump unitERGA

Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN

Heat pump indoor unitDaikin Altherma EHS(X/H)

HP convector

Comply with the stipulated tightening torque (see
chap.Chap. 10.3)

Only applies to devices with unpressurised solar system
connection (DrainBack).

Only applies to devices with a bivalent solar system connec­tion (Biv).

Only valid for Daikin Altherma EHS(X/H) with cooling func­tion

Handling instructions
1 Handling instructions are shown as a list. Actions for which the

sequential order must be maintained are numbered.

è

Results of actions are identified with an arrow.

1.2 Safety instructions for installation and operation

1.2.1 General

WARNING

Devices that have not been set up and installed correctly
can impair the function of the device and/or cause serious
or fatal injury to the user.

▪ Work on the Daikin Altherma EHS(X/H) (such as set-up,

inspection, connection and initial commissioning) must
only be carried out by persons who are authorised and
who have successfully completed qualifying technical
or vocational training and who have taken part in ad­vanced training sessions recognised by the relevant au­thorities responsible for the specific activity. These in­clude, in particular, certified heating engineers, quali-
fied electricians and HVAC specialists who, because
of their professional training and expert knowledge,
have experience in the professional installation and
maintenance of heating, cooling and air conditioning
systems as well as hot water storage tanks.

▪ Switch off the external main switch before starting any

work on the Daikin Altherma EHS(X/H) and secure it
against unintentional switch-on.

▪ Do not leave any tools or other objects below the hood

of the unit after finishing installation or maintenance
work.

Avoiding danger

Daikin Altherma EHS(X/H) conforms to the state-of-the-art and
meets all recognised technical requirements. However, improper use
may result in serious physical injuries or death, as well as property
damage. To prevent such risks, only install and operate the devices:

▪ as stipulated and in perfect condition,
▪ with an awareness of safety and the hazards involved.

This assumes knowledge and use of the contents of this manual, of
the relevant accident prevention regulations as well as the recog­nised safety-related and occupational health rules.

Before working on the hydraulic system

▪ Work on the system (such as installation, connection and initial

commissioning, for example) must only be carried out by persons
who are authorised, who have successfully completed qualifying
technical or vocational training for the respective activity and who
have taken part in advanced training sessions recognised by the
relevant responsible authority.

Installation and maintenance instructions

3

1 General safety precautions

▪ When carrying out any work on the system, switch off the main

switch and secure against being switched on inadvertently.
▪ Seals must not be damaged or removed.
▪ Make sure that the safety valves comply with the requirements of

EN12828 when connecting on the heating side, and with the re-

quirements of EN12897 when connecting on the domestic water

side.

1.2.2 Intended use

The Daikin Altherma EHS(X/H) may only be used for the preparation
of hot water, as a room heating system and, depending on its
design, as a room cooling system.

The Daikin Altherma EHS(X/H) must be installed, connected and op­erated only according to the indications in this manual.

Only the use of a suitable outdoor unit approved by the manufacturer
is permitted.

Daikin Altherma EHS(X/H)

EHSX04P30D

EHSX04P50D
EHSXB04P30D
EHSXB04P50D

EHSH04P30D
EHSHB04P30D

ERGA04DAV3 P ­ERGA06DAV3 - P

ERGA08DAV3 - P
ERGA04DAV3A P ­ERGA06DAV3A - P
ERGA08DAV3A - P

Tab.1-3 Permissible combinations

Any other use outside the intended use is considered as improper.
The operator alone shall bear responsibility for any resulting dam­age.

Intended use also includes compliance with the maintenance and in­spection conditions. Replacement parts must at least satisfy the
technical requirements defined by the manufacturer. This is the
case, for example, with original spare parts.

EHSX08P30D

EHSX08P50D
EHSXB08P30D
EHSXB08P50D

EHSH08P30D

EHSH08P50D
EHSHB08P30D
EHSHB08P50D

1.2.3 Device installation room

WARNING

The plastic wall of the storage tank of the Daikin Altherma
EHS(X/H) can melt under the effects of external heat
(>80°C) and, in the extreme case, can catch fire.

▪ Only install the Daikin Altherma EHS(X/H) at a minimum

distance of 1m to other heat sources (>80°C) (e.g.
electrical heater, gas heater, chimney) and combustible
materials.

CAUTION

▪ Only install the Daikin Altherma EHS(X/H) if sufficient

load-carrying capacity of the ground of 1050kg/m2 plus
safety margin is ensured. The ground must be flat, hori­zontal and level.

▪ Outdoor installation is not permissible.
▪ Installation in an explosion-risk environment is not per-

missible.

▪ The electronic control system must not be exposed to

whether effects like rain and snow under any circum­stances.

▪ The storage tank may not be exposed to continuous dir-

ect sunlight, as the UV radiation and the effects of the
weather will damage the plastic.

▪ The Daikin Altherma EHS(X/H) must be installed protec-

ted from frost.

▪ Make sure that the supply company does not provide

corrosive domestic water. Suitable water treatment may
be required.

▪ Always ensure the minimum distances to walls and other objects

( Chap. 4.1).

▪ Observe the special installation requirements of the R32 refriger-

ant (see Chap. 4.3.1).

CAUTION

▪ If a DrainBack solar heating system is connected:

Install the Daikin Altherma EHS(X/H) far enough under
the solar panels to allow complete emptying of the solar
heating system. (Follow instructions in the DrainBack
solar heating system manual). An insufficient height dif­ference may lead to the destruction of the DrainBack
solar heating system.

▪ The Daikin Altherma EHS(X/H) must not be operated in

rooms with ambient temperatures above 40°C.

1.2.4 Electrical installation

▪ Electrical installations may only be carried out by electrical techni-

cians and in compliance with valid electrical guidelines as well as
the specifications of the responsible energy supply company.

▪ Compare the mains voltage (230V, 50Hz) indicated on the name-

plate with the supply voltage before connecting to the mains.

▪ Before beginning work on live parts, disconnect them from the

power supply (switch off main switch, remove fuse) and secure
against unintentional restart.

▪ Device covers and service panels must be replaced as soon as

the work is completed.

1.2.5 Requirements for the heating water

Avoid damage caused by deposits and corrosion: Comply with the
applicable engineering regulations on prevention of corrosion
products and deposits (VDI 2035, BDH/ZVSHK technical information
"Scale formation").

Minimum requirements regarding the quality of filling and supple­mentary water:

▪ Water hardness (calcium and magnesium, calculated as calcium

carbonate): ≤3mmol/l
▪ Conductivity: ≤1500 (ideal: ≤100) μS/cm
▪ Chloride: ≤250mg/l
▪ Sulphate: ≤250mg/l
▪ pH-values (heating water): 6.5 - 8.5

Installation and maintenance instructions

4

Daikin Altherma integrated solar unit

Daikin Altherma EHS(X/H)

008.1444099_00 – 07/2018 – EN

1 General safety precautions

Measures for desalination, softening or hardness stabilisation are
necessary if the filling and top-up water have a high total hardness
(>3mmol/l - total of the calcium and magnesium concentrations, cal­culated as calcium carbonate). We recommend the use of Fernox
KSK limescale and corrosion protector. For other properties deviat­ing from the minimum requirements, suitable conditioning measures
are necessary to maintain the required water quality.

Using filling water and top-up water which does not meet the stated
quality requirements can cause a considerably reduced service life
of the device. The responsibility for this lies solely with the operator.

1.2.6 Heating system and sanitary connection

▪ Create a heating system according to the safety requirements of

EN12828.

▪ The plumbing connection must comply with the requirements of

EN12897. The requirements of the following must also be ob­served:

▪ EN1717 – Schutz des Trinkwassers vor Verunreinigungen in

Trinkwasser-Installationen und allgemeine Anforderungen an
Sicherheitseinrichtungen zur Verhütung von Trinkwasserverun­reinigungen durch Rückfließen. Protection against pollution of
potable water installations and general requirements of devices
to prevent pollution by backflow. Protection contre la pollution
de l'eau potable dans les réseaux intérieurs et exigences
générales des dispositifs de protection contre la pollution par
retour

▪ EN61770 – Elektrische Geräte zum Anschluss an die

Wasserversorgungsanlage – Vermeidung von Rücksaugung
und des Versagens von Schlauchsätzen. Electric appliances
connected to the water mains – Avoidance of backsiphonage
and failure of hose-sets. Appareils électriques raccordés au
réseau d'alimentation en eau – Exigences pour éviter le retour
d'eau par siphonnage et la défaillance des ensembles de rac­cordement

▪ EN806 – Technische Regeln für Trinkwasserinstallationen

(TRWI). Specifications for installations inside buildings convey­ing water for human consumption. Spécifications techniques re­latives aux installations pour l'eau destinée à la consummation
humaine à l'intérieur des bâtiments

▪ and, in addition, the country-specific legislation.

During operation of the Daikin Altherma EHS(X/H) with additional
heat source, the storage tank temperature may exceed 65°C, above
all when solar energy is used.

▪ For this reason, some form of scalding protection needs to be in-

cluded when you install the system (hot water mixing device, e.g.
VTA32).

If the Daikin Altherma EHS(X/H) is connected to a heating system
with steel pipes, radiators or non-diffusion-proof floor heating pipes,
sludge and chips can enter the hot water storage tank and cause
blockages, local overheating or corrosion damage.

▪ To prevent possible damage, install a dirt filter or sludge separator

into the heating return flow of the system (SAS 1 or SAS 2).

▪ The dirt filter must be cleaned at regular intervals.

▪ only operate if the protective cover is installed.
The specified servicing intervals should be adhered to and inspec-

tion work must be carried out.

1.2.7 Operation

The Daikin Altherma EHS(X/H):
▪ Do not operate until all installation and connection work is com-

pleted.

▪ Only operate with a completely full storage tank (Level indicator)

and heating circuit.
▪ Operate at a maximum pressure of 3bar.
▪ Only connect with a pressure reducer on the external water supply

(supply line).
▪ Only operate the with the specified quantity of coolant and the

type of coolant specified.

Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN

Installation and maintenance instructions

5

2 Handover to operator and warranty

2 Handover to operator and

warranty

2.1 Instruct the owner

▪ Before you hand over the heating system, explain to the owner

how he/she can operate and check the heating system.

▪ Hand over the technical documentation (at least the operating in-

structions and operating manual) to the operator and advise him
that these documents must be made available at all times and be
stored in the immediate vicinity of the device.

▪ Document the handover by filling out the installation and instruc-

tion forms together with the owner and sign them.

2.2 Warranty conditions

The legal guarantee conditions fundamentally apply. Our more ex­tensive warranty conditions can be found in the Internet. Ask your
suppliers if necessary.

There is only an entitlement to warranty services when it can be cer­tified that the annual maintenance work according to Chap. 7 has
been regularly completed.

Installation and maintenance instructions

6

Daikin Altherma integrated solar unit

Daikin Altherma EHS(X/H)

008.1444099_00 – 07/2018 – EN

3 Product description

RoCon+ B1 33 26

24

10

25

A

A

6

30

5

(34)

4

(34)

3UV DHW 3UVB1

15

17

1 32 3UV DHWDS31 35 38

t

V,BH

7

39 37

3UV DHW

2

FLS

8

t

V,BHtR

3

t

V

3 Product description

3.1 Design and components

Outside of the device

Upper side of the device

Fig.3-1 Design and components - Outside of the device

Fig.3-2 Design and components - Top of the device

(1)

(1)

(1)

For legend, see Tab. 3-1

Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN

Installation and maintenance instructions

7

3 Product description

EKSRPS4

EKSRPS4

Internal structure…04P30D/…08P30D

Internal structure …B04P30D / …B08P30D (Biv)

Fig.3-3 Design and components – Internal struc-

ture ...04P30D/...08P30D

(1)

For legend, see Tab. 3-1

Installation and maintenance instructions

(1)

8

Fig.3-4 Design and components - Internal struc-

ture ...B04P30D / ...B08P30D (Biv)

Daikin Altherma integrated solar unit

(1)

Daikin Altherma EHS(X/H)

008.1444099_00 – 07/2018 – EN

3 Product description

EKSRPS4

EKSRPS4

Internal structure …04P50D / …08P50D

Internal structure …B04P50D / …B08P50D (Biv)

Fig.3-5 Design and components - Internal struc-

ture ...04P50D / ...08P50D

(1)

For legend, see Tab. 3-1

Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN

(1)

Fig.3-6 Design and components - Internal structure …

B04P50D / …B08P50D (Biv)

(1)

Item Designation Item Designation

1 Solar inflow or connec-

25 Type plate
tion for another heat
source (BIV only)

2 Cold water connection 26 Protective cover
3 Domestic hot water 27 Solar - return flow
4 Heating inflow 28 Solar - inflow
5 Heating return flow 29 Solar - return flow
6 Circulation pump 30 Plate heat exchanger
7 Pressure relief valve 31 Connection for refrigerant

fluid line

7a Non-return valve (ac-

cessory)

32 Connection for refrigerant

gas line

8 Automatic vent valve 33 Status display

Installation and maintenance instructions

9

3 Product description

Item Designation Item Designation

9 Storage tank (polypropyl-

ene double walled jacket

34 Ball valve (heating cir-

cuit)
with PUR hard foam heat
insulation)

10 Filling and draining con-

nection or solar return
flow connection

11 Mount for solar controller

or handle

12 Heat exchanger (stain-

less steel) for domestic

35 Combined filling and

draining valve (heating

circuit)

37

Storage tank temperature

sensor

t

,

DHW1

t

DHW2

38 Connection for dia-

phragm expansion vessel
hot water heating

13 Heat exchanger (stain-

39 Control system housing
less steel) for storage
tank charging or heating
support

14 Heat exchanger (stain-

less steel) for pressur­ised solar system storage

3UVB13-way switch valve (in-

ternal heat generator cir­cuit)

charging

15 Connection for optional

electrical backup heater

3UV

3-way switch valve (hot

DHW

water/heating)

EKBUxx

16 Solar - inflow layering

DS Pressure sensor
pipe

17 Fill level indicator (tank

FLS FlowSensor
water)

18 Optional: electric backup

heater (EKBUxx)

19 Submersible sensor

sleeve for storage tank
temperature sensor t
and t

DHW2

20 Pressure-free storage

tank water

21 Solar zone RoCon

DHW1

t

Return flow temperature

R

sensor

t

Inflow temperature

V

sensor

t

Backup heater inflow

V, BH

temperature sensor
Controller control panel

+ B1

22 Hot water zone EKS-

23 Safety overflow connec-

tion

Optional: Solar control

RPS4

and pump unit

MAG Diaphragm expansion

vessel

24 Mount for handle

Tab.3-1 Legend for Fig. 3-1 to Fig. 3-6

3.2 Function of the 3-way switch valves

Fig.3-7 3-way switch valve function

Installation and maintenance instructions

10

Daikin Altherma integrated solar unit

Daikin Altherma EHS(X/H)

008.1444099_00 – 07/2018 – EN

4 Set-up and installation

0

B

45

161

0

183

334

490

1770

1380

1659

1565

642

0 0

1599

1905

4 Set-up and installation

WARNING

Cooling systems (heating pumps), climate control systems
and heating devices that have been set up and installed in­correctly can both endanger human life and health and be
impaired in their function.

▪ Work on the Daikin Altherma EHS(X/H) (such as install-

ation, repair, connection and initial commissioning, for
example) must only be carried out by persons who are
authorised, who have successfully completed qualifying
technical or vocational training for the respective activity
and who have taken part in advanced training sessions
recognised by the relevant responsible authority. These
include, in particular, certified heating engineers, quali­fied electricians and HVAC specialists who, because of
their professional training and expert knowledge, have
experience in the professional installation and mainten­ance of heating, cooling and air conditioning systems
and heat pumps.

Incorrect set-up and installation would render the manufacturer's
guarantee void. If you have questions, please contact our Technical
Customer Service.

4.1 Dimensions and connection dimensions

Dimensions …04P30D/…08P30D

Fig.4-1 Dimensions, side view - …04P30D/…08P30D

Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN

Installation and maintenance instructions

11

4 Set-up and installation

0

125

315

490

590

9

7

5

26

A

B

418

3

0

388

615

±5

95

97

184

205

259

0

280

432

588

1651

1591

1555

B

1380

642

0

0

1762

1905

45

7

6

Dimensions …04P50D/…08P50D

Fig.4-2 Dimensions, top of the device - Type …04P30D/…

08P30D

Fig.4-3 Dimensions, side view - Type …04P50D/…08P50D

Installation and maintenance instructions

12

Daikin Altherma integrated solar unit

Daikin Altherma EHS(X/H)

008.1444099_00 – 07/2018 – EN

4 Set-up and installation

587,5

0

432

412,5

147,5

9 8

21

45

3

A

B

6 7

785

0

249

332,5

452,5

162,5

147,5

A (2x)

B (3x)

C (1x)

D (1x)

E (2x)

H (2x)

F (2x)

G (1x)

I (1x)

J (1x)

K (1x)

L (1x)

Fig.4-4 Dimensions, top of the device - Type …04P50D/…

Item Designation

1 Solar - inflow
2 Cold water
3 Domestic hot water
4 Heating inflow
5 Heating return flow
6 Connection for refrigerant gas line
7 Connection for refrigerant fluid line
8 Solar – inflow (…Biv type only)
9 Solar – return flow (…Biv type only)
A front
B rear

Tab.4-1

4.2 Transport and delivery

The Daikin Altherma EHS(X/H) is delivered on a pallet. All industrial
trucks, such as lifting trucks and forklift trucks, are suitable for trans­porting it.

Scope of delivery

▪ Daikin Altherma EHS(X/H) (preassembled),
▪ Bag of accessories (see Fig. 4-5),
▪ Document pack.

08P50D

WARNING

The Daikin Altherma EHS(X/H) is top-heavy in the unfilled
state and could tip over during transport. That could put
persons in danger or damage the unit.

▪ Secure the Daikin Altherma EHS(X/H) well, transport

carefully, use the handles.

Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN

Fig.4-5 Contents of bag of accessories

Item Designation Item Designation

A Handles (only required

for transport)
B cover panel H Cable tie
C Hose connecting piece

for safety overflow
D Assembly wrench J Venting hose
E Ball valve K Drain hose cover
F Flat gasket L RoConPlus controller

Tab.4-2

For further accessories for the Daikin Altherma EHS(X/H), see Price
list.

G O-ring

I Plug bracket

rotary switch

4.3 Installing the heat pump

4.3.1 Selecting the installation site

CAUTION

If the total refrigerant charge in the system is ≥ 1.84kg, it is
essential to comply with additional requirements for min­imum footprint and minimum ventilation openings. Ob­serveChap. 10.4.

Information on the total refrigerant charge can be found on
the type plate of the outdoor unit. Please follow the installa­tion instructions.

Installation and maintenance instructions

13

4 Set-up and installation

The installation site of the Daikin Altherma EHS(X/H) must meet the
minimum requirements below (see alsoChap. 1.2.3).

Installation area
▪ The base must be level and smooth and have a sufficient ground

load-bearing capacity of 1050kg/m² plus safety factor. Install a

pedestal if necessary.

▪ Observe the installation dimensions (see Chap. 4.1).

Minimum distance

DANGER: RISK OF BURNING

The plastic wall of the storage tank of the Daikin Altherma
EHS(X/H) can melt under the effects of external heat
(>80°C) and, in the extreme case, can catch fire.

▪ Only install the Daikin Altherma EHS(X/H) with a min-

imum distance of 1m to other heat sources (>80°C)
(e.g. electrical heater, oil heater, chimney) and the ma­terial to be combusted.

CAUTION

If the Daikin Altherma EHS(X/H) is not installed a

sufficient distance below the flat solar panels (the top
edge of the storage tank is higher than the bottom edge of
the solar panels), the unpressurised solar system in the
outdoor area will not be able to drain completely.

▪ When a solar connection is used, install the Daikin

Altherma EHS(X/H) low enough at the flat solar panels
(observe minimum gradient in the solar connection
lines).

Recommended minimum distances:
To the wall: (back) ≥100mm, (sides) ≥500mm
To the ceiling: ≥1200mm, at least 480mm.

Installation

4.3.2 Installing the device

WARNING

The Daikin Altherma EHS(X/H) is top-heavy in the unfilled
state and could tip over during transport. That could put
persons in danger or damage the unit.

▪ Secure the Daikin Altherma EHS(X/H) well, transport

carefully, use handles.

Precondition

▪ The installation site complies with applicable country-specific reg-

ulations and meets the minimum requirements described in Chap.

4.3.1.

Fig.4-6 Installing the handles

Item Designation

A Handle
B cover panel
F Threaded piece

Tab.4-3

1 Remove packing and dispose of it in an environment-friendly

manner.

2 Pull off the cover screens from the storage tank (Fig. 4-6, itemB)

and unscrew the threaded fittings (Fig. 4-6, itemF) from the
openings at which the handles are to be fitted.

3 Screw the handles (Fig. 4-6, itemA) into the now uncovered

threaded holes.

4 Carefully transport the Daikin Altherma EHS(X/H) to the installa-

tion site, use the handles.

Installation and maintenance instructions

14

Daikin Altherma integrated solar unit

Daikin Altherma EHS(X/H)

008.1444099_00 – 07/2018 – EN

5 Installing the Daikin Altherma EHS(X/H) at the installation site.

A

▪ When setting up the unit in a cabinet, behind panels or in other

restricted conditions, ensure sufficient ventilation (e.g. using
ventilation gratings). If the total refrigerant charge in the system
is ≥ 1.84kg, further requirements of the ventilation openings
must be met (see Chap. 10.4).

4.4 Preparing the device for installation

4.4.1 Remove the front screen

1 Undo the screws (1.).
2 Press the lateral holding burls upwards with your fingers (2.),

stem from above with the thumbs.

3 Remove the front screen to the front (3.).

4 Set-up and installation

Fig.4-8 Remove the protective cover

Fig.4-7 Remove the front screen

4 After completing the installation: Place the front screen

straight directly above the rotary switch of the RoCon+ HP.
Press on the top and bottom until the front screen is securely en­gaged again.

4.4.2 Remove the protective cover

1 Undo the screws (1.).
2 Unhook the protective cover from the rearward facing holding

burls (2.), lift at the back (3.) and remove to the front (4.).

Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN

Fig.4-9 Without protective cover

4.4.3 Moving the controller housing to the service position

To facilitate work on the hydraulics of the Daikin Altherma EHS(X/H),
the control box can be moved to the service position.

1 Loosen the screws (1) of the holder of the controller housing.

Installation and maintenance instructions

15

4 Set-up and installation

1

1

1

2

Fig.4-10 Moving the controller housing to the service position

2 Remove the controller housing from the front and insert it into

the bracket with the hooks on the rear brackets.

Fig.4-12 Open the controller housing

3 Hook in the cover on the controller housing with the lateral

hooks.

Fig.4-11 Controller housing in the service position

4.4.4 Open the controller housing

To make the electrical connections, the controller housing itself must
be opened. This can be done in both the normal and the service po­sition.

1 Loosen the front screw.
2 Push the cover upwards and pull it away to the front.

Fig.4-13 Hooking in the cover

4.4.5 Removing the bottom thermal insulation

CAUTION

The thermal insulation (Fig. 4-9, itemA) consists of pres­sure-sensitive EPP moulded parts that can be easily dam­aged if not handled correctly.

▪ Only remove the thermal insulation in the order stated

below and in the stated directions.

▪ Do not use force.

1 Remove the thermal insulation in the following order:

▪ Do not use tools.

▪ Pull the side insulating element off horizontally (itemA).
▪ Pull the rear insulating element off horizontally (itemB).
▪ Pull the front insulating element off horizontally (itemC).

Installation and maintenance instructions

16

Daikin Altherma integrated solar unit

Daikin Altherma EHS(X/H)

008.1444099_00 – 07/2018 – EN

A

B

C

Fig.4-14 Removing the top thermal insulation

A

B

2 As required: Remove the bottom thermal insulation in the fol-

lowing order:
▪ Pull the side insulating element off vertically (itemA).
▪ Pull the rear insulating element off vertically (itemB).

4 Set-up and installation

Fig.4-16 Opening the vent valve

4.4.7 Aligning the connections of the heating inflow and return flow

CAUTION

When working on the hydraulics, pay attention to the in­stallation position of the O-rings to avoid damaging them
and causing leaks.

▪ Always place O-rings on the part to be inserted after dis-

assembly or before assembly (see Fig. 4-18).

▪ The heating lines must be connected free of tension via

the plug connectors. Establish a suitable strain relief es­pecially when connecting with flexible lines (not open to
diffusion!) (see ).

Fig.4-15 Removing the bottom thermal insulation

INFORMATION

The thermal insulation is installed in reverse order.

4.4.6 Opening the vent valve

1 Removing the thermal insulation (see Chap. 4.4.5).
2 Open the vent valve on the pump by one turn.

CAUTION

If the plug brackets cannot be put on properly, the coup­lings can be detached from their mountings to ensure a
very strong or continuous escape of liquid can occur.

▪ Before putting on a plug bracket, make sure that the stir-

rup engages in the coupling groove. To do so, insert the
coupling far enough into the mounting that the groove is
visible through the plug bracket mounting.

▪ Insert the plug bracket up to the end stop.

The connections of the heating inflow and return flow can be direc­ted upwards or backwards in order to adapt it optimally to the struc­tural conditions of the installation site.

The device is supplied with upwards aligned connections as stand­ard. The following conversion steps are required in order to direct
the connections to the rear out of the device:

1 Remove the protective cover and top thermal insulation

(seeChap. 4.4.2).

Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN

Installation and maintenance instructions

17

4 Set-up and installation

Fig.4-17 Aligning the heating inflow and return flow upwards

2 Pull the two plug brackets off the connection couplings (Fig.

4-17, itemC).

3 Pull off the two connection couplings (Fig. 4-17, itemB).

Fig.4-18 Hydraulic system plug connectors

4 Remove the retaining plate (Fig. 4-17, itemA).
5 Pull off the sealing plug bracket (Fig. 4-17, itemD).
6 Pull out the sealing plug (Fig. 4-17, itemE).
7 Turn the elbow (Fig. 4-17, itemH) 90° to the rear.
8 Pull the plug bracket off the manifold (Fig. 4-17, itemG).
9 Carefully pull the manifold (Fig. 4-17, itemF) so far backwards

out of its horizontal mounting that the retaining plate (Fig. 4-19,
itemA) can be pushed vertically in between.

Fig.4-19 Heating inflow and return flow connections aligned to the

rear

10 Slide the retaining plate between the manifold and its horizontal

mounting and insert the manifold (Fig. 4-19, itemF) back into its
mounting through the middle hole of the retaining plate.

11 Secure the manifold with plug bracket (Fig. 4-19, itemG) in its

mounting again.

12 Insert the two connection couplings (Fig. 4-19, itemB) into the

lateral mountings through the retaining plate.

13 Secure the two connection couplings with plug bracket (Fig.

4-19, itemC) in their mountings.

14 Insert the sealing plug (Fig. 4-19, itemE) into the upper mount-

ing.

15 Secure the sealing plug with plug bracket (Fig. 4-19, itemD).
16 Cut out side openings in the thermal insulation (Fig. 4-20,

itemA) using a suitable tool.

Installation and maintenance instructions

18

Fig.4-20 Cut-out in thermal insulation

4.4.8 Making the hood opening

1 With the heating inflow and return flow directed upwards: Cut the

hood along the perforation with a suitable tool.

Daikin Altherma EHS(X/H)

Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN

Fig.4-21 Making the hood opening

1 2

3

A B

3

A

D

B

C

4 Set-up and installation

3 Attach the connection set to the controller housing of the Daikin

Altherma EHS(X/H). To do this, insert the hooks (1) of the con­nection set into the slots of the controller housing (2); then press
the connection set downwards.

4.4.9 Installing the rotary switch of the controller

1 Place the rotary switch on the rotary switch holder of the RoCon

+ HP and press it on.

Fig.4-22 Putting on the rotary switch

4.5 Installing optional accessories

4.5.1 Installation of the electric backup heater

(EKBUxx)

INFORMATION

If the ceiling height is low, the storage tank must be tilted to
install the backup heater when empty. This must be done
before any further installation steps.

The Daikin Altherma EHS(X/H) provides the option of installing an
electrical auxiliary heater (backup heater EKBUxx). For example, re­newable energy can be used as an additional heat source.

Fig.4-23 Fitting the connection set

4 Attach the grommet (3) to the bushing between the connection

set (A) and the controller housing (B). Make sure that the grom­met surrounds both plates.

Fig.4-24 Cable gland

5 Guide the cable of the Ultra EHS printed circuit board through

the cable grommet and connect it to the RoCon BM2C (see Fig.

4-38).

6 After the installation and the electrical connections (see Water

connectionor Chap. 4.7) have been completed, replace the
cover and close it with the screw.

4.5.3 Installation of the DB connection kit

The optional DB connection kit allows better access for connecting
the DrainBack pipe (solar inflow).

INFORMATION

A separate manual containing instructions about installa­tion and operation is included with this component.

4.5.2 Installation of the external heat generator connection set

The connection set for external heat generators must be installed to
control an electrical backup heater or another external heat gener­ator.

1 Open the housing by removing the screw.
2 Remove additional components from the housing (strain relief

clip, cable tie, grommet).

Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN

Fig.4-25 DB connection kit

Installation and maintenance instructions

19

4 Set-up and installation

AB

Item Designation

A DB pipe connection (solar inflow)
B FlowSensor (not part of the DB connection kit, but in-

cluded with EKSRPS4)
C Flow rate limiter (FlowGuard)
D

Tab.4-4

Solar - inflow connection on the storage tank

4.5.4 Installation of the P connection kit

The optional P connection kit for Biv device types allows better ac­cess for connecting the inflow and return flow lines of a pressurised
solar system or another external heat generator on the storage tank.
The kit contains two thermally insulated corrugated pipes that are
connected to the connections of the storage tank via a union nut. At
the other end of the corrugated pipes there is an adapter for different
connection sizes of the inflow and return flow lines.

CAUTION

If the Daikin Altherma EHS(X/H) is connected to a cold wa­ter line where steel pipes are used, chips can get into the
stainless steel corrugated pipe heat exchanger and remain
there. This can lead to contact corrosion damage and sub­sequently to leakage.

▪ Flush the feed pipes before filling the heat exchanger.
▪ Install the dirt filter in the cold water supply (e.g. SAS 1

or SAS 2).

CAUTION:BIV ONLY

If the heat exchanger for pressurised solar system char­ging (see Chap. 4.1, items8+ 9) is connected to an ex-
ternal heater (e.g. wood-burning boiler), the Daikin
Altherma EHS(X/H) can be damaged or destroyed due to
an excessively high inflow temperature at these connec­tions.

▪ The inflow temperature of the external heating unit

should be limited to max. 95°C.

CAUTION

Corrosion may be caused by air entering the heating water
network and by a quality of the heating water that does not
comply with the requirements in accordance with Require­ments for the heating water. Corrosion products (particles)
thus created may clog pumps and valves and cause mal­functions.

▪ Device may not be connected by permeable, flexible

lines.

▪ For potable water lines, observe the provisions of EN806,

DIN1988 and the additional applicable national regulations for
potable water installation.

▪ Install the Daikin Altherma EHS(X/H) close to the withdrawal point

to dispense with the need for a circulation line. If a circulation line
is mandatory, it must be installed according to the schematic dia­grams in Chap. 6.1.

Fig.4-26 P connection kit for Biv device types

Item Designation

A Connection for inflow (red)
B Connection for return flow (blue)

4.6 Water connection

Important information

CAUTION

If the Daikin Altherma EHS(X/H) is connected to a heating
system with steel pipes, radiators or non-diffusion-proof
floor heating pipes, slurry and swarf could enter the hot
water storage tank and cause blockages, local overheat-
ing or corrosion damage.

▪ Rinse supply lines before filling the device.
▪ Rinse out the heat distribution network (in the existing

heating system).

▪ Install a dirt filter or sludge separator in the heating re-

turn flow (see chap.).

4.6.1 Connecting hydraulic lines

DANGER: RISK OF BURNING

There is a danger of scalding at hot water temperatures
over 65°C. This is possible when using solar energy if an
external heater is connected, the Legionella protection is
activated, or the target hot water temperature is set to be
greater than 65°C.

▪ Install a scalding protection (hot water mixer device (e.g.

VTA32)).

INFORMATION

The Daikin Altherma EHS(X/H) is equipped with a pressure
sensor. The system pressure in monitored electronically
and can be displayed with the device switched on.

Nevertheless, we recommend installing a mechanical pres­sure gauge between the Daikin Altherma EHS(X/H) and
the diaphragm expansion vessel, for example.

▪ Install the pressure gauge so that it is easy to see when

filling.

1 Check the cold water connection pressure (maximum 6bar).

▪ If a higher pressure is present in the domestic water pipe, a

pressure reducer will need to be installed.

2 Fix the hydraulic block in place with a screwdriver.

Installation and maintenance instructions

20

Daikin Altherma integrated solar unit

Daikin Altherma EHS(X/H)

008.1444099_00 – 07/2018 – EN

4 Set-up and installation

7 Carefully insulate pipework against heat loss and to avoid con-

densation (insulation thickness at least 20mm).
– Water shortage protection: The pressure and temperature

monitoring of the controller shuts off and locks the Daikin
Altherma EHS(X/H) safely if there is a shortage of water. No
additional water shortage protection is needed in the con­struction.

– Avoid damage caused by deposits and corrosion: see

Chap. 1.2.5

Fig.4-27 Fix the hydraulic block in place when connecting to the

top (left) or to the rear (right)

3 Establish hydraulic connections on the Daikin Altherma EHS(X/

H).

▪ Refer to Chap. 4.1 for the position of the heater connections.

▪ Observe specified tightening torque (see Chap. 10.3)
▪ Install the line in such a way that the protective cover of the

Daikin Altherma EHS(X/H) is simple to put on after assembly.

▪ Connect the water for filling or refilling the heating system as

specified by EN1717/EN61770 to avoid contamination of
drinking water by return flow.

4 For rearward facing connections: Support hydraulic lines suit-

ably according to the spatial conditions.

Fig.4-29 Connecting a diaphragm expansion vessel

4.6.2 Connecting the drain

1 Connect the drain hose to the hose connecting piece for the

safety overflow (Fig. 3-1, item 23).
– Use transparent drain hose (draining water must be visible).
– Connect the drain hose to an adequately dimensioned waste

water installation.

– Drain should not be lockable.

Fig.4-28 Connection to the rear: Support hydraulic lines

5 Connect the blow-off line to the safety over-pressure valve and

diaphragm expansion vessel in accordance with EN12828.

▪ Any steam or heating water which may escape must be drained

by a suitable blow-off line with constant gradient in a frost-pro­tected, safe and observable manner.

▪ Install the line in such a way that the protective cover of the

Daikin Altherma EHS(X/H) is simple to put on after assembly.

▪ Check the seat of the drain hose on the safety pressure relief

valve. If necessary, connect and install a separate hose.

6 Connecting a diaphragm expansion vessel.

▪ Connect a suitably dimensioned and preset diaphragm expan-

sion vessel for the heating system. There may not be any hy­draulic blocking elements between the heat generator and the
safety valve.

▪ Position the diaphragm expansion vessel in an easily access-

ible place (maintenance, parts replacement).

Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN

Fig.4-30 Connection of the overflow hose

Installation and maintenance instructions

21

4 Set-up and installation

4.7 Electrical connection

DANGER: RISK OF ELECTROCUTION

Touching live parts can result in an electric shock and
lead to potentially fatal injuries and burns.

▪ Before beginning work on live parts, disconnect all of the

systems circuits from the power supply (switch off ex­ternal main switch, disconnect fuse) and secure against
unintentional restart.

▪ Establishment of the electrical connection and work on

electrical components should only be performed by elec-
trical technicians in compliance with valid standards
and guidelines as well as the specifications of the en­ergy supply company and the instructions in this manual.

▪ Never make constructional changes to connectors or

other electrical equipment components.

▪ Device covers and service panels must be replaced

as soon as the work is completed.

CAUTION

Increased temperatures may arise in the controller housing
of the Daikin Altherma EHS(X/H) during operation. This
can result in currently-carrying wires from reaching higher
temperatures during operation due to self-heating. For this
reason, these lines need to have a continuous use temper­ature of 90°C.

▪ For the following connections, only use cables with a

long-term use temperature ≥90°C: Heat pump outdoor
unit and optional: Electric backup heater (EKBUxx)

CAUTION

If the mains cable of the Daikin Altherma EHS(X/H) is dam­aged, it must be replaced by the manufacturer or his cus­tomer service or a similarly qualified person to avoid haz­ards.

All Daikin Altherma EHS(X/H) control and safety devices are con­nected ready for use and tested. Modifications on the electrical in­stallation are dangerous and prohibited. The operator alone shall
bear responsibility for any resulting damage.

Installation and maintenance instructions

22

Daikin Altherma integrated solar unit

Daikin Altherma EHS(X/H)

008.1444099_00 – 07/2018 – EN

4-8 kW

J8

J13

J3

CAN-H

A1

PE

PE

2

1

L

CAN-L

A

N

N

3

N

CAN-VCC

A2

L

L1

PE

PE

CAN-GND

XAG1

GND

GND

J8

J8

GND

GND

GND

GND

EBA

Smart

Grid

EBA

J8

J14

J16

P

Z

EKBUxx 1N ~ 230V EKBUxx 3N ~ 400V

EHS157034

EHS157068

AUX

0,75 mm² / sig

0,75 mm² / sig / 230 V

EXT

HT/NT

RT

0,75 mm² / sig

0,75 mm² / sig

0,75 - 1,5 mm² / sig

SG

0,75 mm² / sig

0,75 mm² / sig

EXT

2,5 mm² / 230V / < 30 m

1,5 mm² / 230V

N

L

COM

EVU

RoCon BM2C

RTX - EHS

L1

N

PE

BU

BU

L1

L2

L3

N

PE

BUBUBU

BU

X1X1

2,5 mm² / 230 V

2,5 mm² / 400 V

N NPE PE

J6

V3

90°C

90°C

L1 L2

L3

Fuse 16A

RCD (FI)

L1 L2

L3

V3 1N ~ 230V

N PE

L1 L2

L3

Power surge category III Power surge category III Power surge category III

Fuse

RCD (FI)

1,5 mm² / 230 V

Power surge category III

L1

Fuse 16A

RCD (FI)

1N ~ 230V

L2

L3

NPE

?

400V230V

TA

1 mm² / sig

XTA1

ERGA04DAV3 20 A ≥ 2,5

ERGA06DAV3 20 A ≥ 2,5

ERGA08DAV3 25 A ≥ 4

ERGA04DAV3A 16 A ≥ 2,5

ERGA06DAV3A 16 A ≥ 2,5

ERGA08DAV3A 16 A ≥ 2,5

Type Fuse

mm²

Fuse 1A

RCD (FI)

≤ 9KW1KW - 3KW

4.7.1 Overall connection diagram

4 Set-up and installation

Fig.4-31 Overall connection diagram - for the electrical connection during the device installation (for the legend and pin assignment of the

Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN

printed circuit board, see Chap. 10.5)

Installation and maintenance instructions

23

4 Set-up and installation

X1

A1P

RoCon BM2C

1

XTA1

XAG1

RoCon+ HP

2

RTX-EHS

X1M

L

N

COM

PE

1

2

3

PE

COM

32

N

1

L

4.7.2 Position of the printed circuit boards and terminal strips

Fig.4-32 Position of the printed circuit boards and terminal strips

(for the legend, see Chap. 10.5)

4.7.3 Mains connection

A flexible cable for the mains connection is already connected inside
the device.

1 Check the supply voltage (~230V, 50Hz).
2 Disconnect the junction box of the domestic installation.
3 Connect the cable for connecting the Daikin Altherma EHS(X/H)

to the mains to the domestic installation's junction box (isolator
according to EN60335-1) via an all-pole separating main switch
to be installed in the building. Ensure that the polarity is correct.

4.7.4 General information on the electrical connection

1 Check the supply voltage.
2 Set the mains switch to "Off".
3 Switch off the circuit breaker in the junction box of the domestic

power supply.

4 Open the controller housing (see Chap. 4.4.4).
5 Insert the cable through one of the cable glands into the interior

of the controller housing. When cutting and laying cables to be
connected, make sure that the controller housing can be brought
into the service position without any tension.

6 Make electrical connections according to Chap. 4.7.1 and the

following sections

7 Effective strain relief in the controller housing by means of cable

ties must be ensured for all cables connected to the Daikin
Altherma EHS(X/H) (steps 1 – 3, Fig. 4-34).

Fig.4-34 Establishing and checking the strain relief

8 Check the holding force of the strain relief (step 4, Fig. 4-34).
9 After the installation is complete: Close the controller housing

again and, if necessary, move it to the normal position.

4.7.5 Connecting the heat pump outdoor unit

INFORMATION

A separate manual containing instructions about installa­tion and operation is included with this component.

1 Follow the installation steps in Chap. 4.7.4.
2 Connect the heat pump outdoor unit to terminal strip XAG1 (see

Fig. 4-35).

Fig.4-33 Cable gland

Installation and maintenance instructions

24

Fig.4-35 Connecting the heat pump outdoor unit

INFORMATION

If the heat pump outdoor unit is shut off via a circuit spe­cified by the utility company, the Daikin Altherma EHS(X/H)
indoor unit is not shut off.

Daikin Altherma EHS(X/H)

Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN

4 Set-up and installation

4.7.6 Connecting the outside temperature sensor (optional)

The heat pump outdoor unit has an integrated outdoor temperature
sensor which is used for weather-compensated inflow temperature
control with frost protection function. The weather-compensated in­flow temperature control can be further optimised with the optional
outdoor temperature sensor.

▪ Choose a location at about one third of the building height (min-

imum distance from floor: 2m) at the coldest side of the building
(North or North-East). Ensure that the location is not near to any
external heat sources (flues, air ducts), nor subject to direct solar
radiation.

▪ Place external temperature sensors in such a way that the cable

exit points face downwards (prevents humidity ingress).

CAUTION

Laying the sensor and mains lines in parallel in a wiring
conduit can lead to major malfunctions during controlled
operation of the Daikin Altherma EHS(X/H).

▪ Always lay the sensor line separately.

1 Connect the exterior temperature sensor to a twin-core sensor

line (minimum diameter 1mm2).

2 Install the sensor line to the Daikin Altherma EHS(X/H).
3 Follow the installation steps in Chap. 4.7.4.
4 Connect the sensor line to the XTA1 terminal strip (see Chap.

4.7.2).

5 On the RoCon+ HP controller, set the [External temperature

sensor] parameter to "On" [→Main menu →Configuration
→Sensors].

4.7.7 External switching contact

Connection of an external switching contact (Fig. 4-36) enables
changeover of the operating mode on the Daikin Altherma EHS(X/
H).

The current operating mode is switched by a changing resistance
value (Tab. 4-6). The changeover of the operating mode is only ef­fective for a long as the external switching contact is closed.

The operating mode has an effect on the direct circuit of the Daikin
Altherma EHS(X/H) as well as all other heating circuits connected to
this device as an option.

When special functions (e.g. "48h Emergency Operation") are activ­ated, the input is not evaluated.

Operating mode Resistance RV Tolerance

Standby <680Ω ±5%

Heating 1200Ω

Reducing 1800Ω

Summer 2700Ω
Automatic 1 4700Ω
Automatic 2 8200Ω

Tab.4-6 Resistance values for evaluating the EXT signal

INFORMATION

The input is not considered for resistance values greater
than the value for "Automatic 2".

INFORMATION

The [Heating support (HZU)] function integrated in the Ro­Con+ HP controller (see the Controller operating instruc­tions) makes it unnecessary to connect the connection to
the burner blocking contact connection of the solar system.

4.7.8 EBA (external requirement request)

By connecting the EBA switching contact to the Daikin Altherma
EHS(X/H) (Fig. 4-37) and corresponding parametrisation in its Ro­Con+ HP controller, an external switching contact can be used to
generate a heat request. If the switching contact is closed, the Daikin
Altherma EHS(X/H) switches to heating mode. The inflow temperat­ure is controlled to the temperature set in the [Inflow temperature
heating operation] parameter [→Main menu →Configuration
→Heating].

The EBA switching contact has priority over a request from the room
thermostat.

The switching contact is not evaluated in cooling mode, standby,
manual or summer mode. The heating limits are also ignored.

Fig.4-36 EXT switching contact connection

Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN

Fig.4-37 EBA switching contact connection

4.7.9 Connecting an external heat generator

INFORMATION

To connect an external heat generator, the connection set
for external heat generators must be installed. (see Chap.

4.5).

For heating support or as an alternative to an electric backup heater,
an external heat generator (e.g. gas- or oil-fired boiler) can be con­nected to the Daikin Altherma EHS(X/H). To connect an external
heat generator, the connection set for external heat generators must
be installed (see Chap. 4.5).

The heat supplied by the external heat generator must be fed to the
unpressurised storage tank water in the Daikin Altherma EHS(X/H)
's hot water storage tank.

▪ Implement the hydraulic connection according to one of the two

following options:

Installation and maintenance instructions

25

4 Set-up and installation

▪ unpressurised via the connections (solar inflow and solar

return flow) of the hot water storage tank

▪ for Daikin Altherma EHS(X/H) …Biv, device types, via the

integrated pressurised solar heat exchanger.
▪ Comply with the instructions on hydraulic connections

(seeChap. 1.2)

▪ Examples of the hydraulic connection (seeChap. 6).

The external heat generator request is connected via a relay on prin­ted circuit board RTX-EHS (see Fig. 4-38). Electrical connection to
the Daikin Altherma EHS(X/H) is possible as follows;

▪ External heat generator has a potential-free switching contact con-

nection for heat request:
▪ Connection to K3 if the external heat generator is responsible

for the preparation of hot water and the heating support (setting
of the [Config. of external heat source] parameter = "2" [→Main
menu →Settings→Ext. Source])

or

▪ Connection to K1 and K3 if two external heat generators are

used (setting of the [Config. of external heat source ] parameter
= "3" [→Main menu →Settings →Ext. Source]). In this case,
K1 connects the external heat generator (e.g. gas-fired or oil­fired boiler) for heating support and K3 connects the external
heat generator (EKBUxx) for hot water preparation.

or

▪ Connection to AUX connection A (seeChap. 4.7.13)

▪ External heat generator can only be connected via mains voltage:

Connection (~230V, maximum load 3000W) to K1 and K3.

CAUTION

Danger of voltage flash-overs.
▪ The connections of the RTX-EHS printed circuit board

must not be used simultaneously for connecting mains
voltage (~230V) and SELV ("Safety Extra Low
Voltage").

Fig.4-38 Connection on the RTX-EHS printed circuit board

1 Refer to the external heat generator's respective installation in-

structions for a suitable electrical connection.

2 Installing the connection set for external heat generators (see

Chap. 4.5).

3 Make suitable connections on the RTX-EHS printed circuit board

of the connection set (see Fig. 4-38).

4 Fix cables that are fed into the connection set from the outside

using the strain relief clips and cable ties included (see steps 7
and 8 in Chap. 4.7.4).

Installation and maintenance instructions

26

4.7.10 Connecting the room thermostat

INFORMATION

A separate manual containing instructions about installa­tion and operation is included with this component.

Daikin Altherma EHS(X/H)

Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN

Fig.4-39 Connection with wired room thermostat (RT = Daikin

EKRTW)

4 Set-up and installation

Room controller EHS157034

A separate EHS157034 room controller can be connected for each
heating circuit to enable remote adjustment of operating modes and
target room temperatures from another room.

INFORMATION

Separate installation instructions are included with this
component. See the enclosed control system manual for
instructions on setting and operation.

EHS157068 mixer module

The EHS157068 mixer module can be connected to the Daikin
Altherma EHS(X/H) (J13 circuit board connector) and is controlled
by the electronic controller.

INFORMATION

Separate installation instructions are included with this
component. See the enclosed control system manual for
instructions on setting and operation.

Internet gateway EHS157056

The controller can be connected to the internet with the optional
EHS157056 gateway. This enables remote control of the Daikin
Altherma EHS(X/H) by mobile phones (by app).

INFORMATION

Separate installation instructions are included with this
component. See the enclosed control system manual for
instructions on setting and operation.

Fig.4-40 Connection with radio-controlled room thermostat (RT-E

= Daikin EKRTR)

4.7.11 Connection of optional RoCon system components

The optional RoCon devices must be connected to the Daikin
Altherma EHS(X/H) via a 4-wire CAN bus line (connection J13).

For this, we recommend shielded lines with the following character­istics:

▪ Standardisation according to ISO11898, UL/CSA type CMX (UL

444)

▪ PVC outer sheath with flame retardancy according to IEC

60332-1-2

▪ Up to 40m, minimum cross-section 0.75mm2. Larger conductor

cross-section necessary with increasing length.

Commercially available junction boxes can be used to connect CAN
bus lines of several RoCon devices.

Ensure that mains, sensor and data bus lines are routed separately.
Use only cable ducts with separators or separate cable ducts spaced
at least 2cm apart. Line crossings are permissible.

A maximum of 16 devices with a total line length of up to 800m can
be connected in the entire RoCon system.

4.7.12 Connecting the HP convector

INFORMATION

A separate manual containing instructions about installa­tion and operation is included with this component.

▪ Electrical connection of the HP convector with the following ac-

cessories according to Fig. 4-41 as a switchover contact (heating/
cooling).

▪ If necessary, install and connect a 2-way valve (2UV) (HPC-RP 14

20 13) in the HP convector. Set its controller so that the 2-way
valve (2UV) closes when no request is available from this device.

INFORMATION

The operating mode (heating/cooling) can only be switched
on the Daikin Altherma EHS(X/H).

Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN

Installation and maintenance instructions

27

4 Set-up and installation

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Fig.4-41 Connecting the HP convector (max. 2) to the Daikin

Altherma EHS(X/H)

Fig.4-43 Connection of switching contact (AUX output)

The relays user for variant 2 (switched output >15W) must be suit­able for a 100% power-on time.

Connection terminals B+B1 are not occupied for these devices or
are available for additional functions.

The relays user for variant 2 (switched output >15W) must be suit­able for a 100% power-on time.

Switchover contact A-A1-A2 can be used e.g. to control the heat
generators in bivalent heating systems consisting of a Daikin
Altherma EHS(X/H) and an oil-or gas-fired boiler. Examples of the
integration of the hydraulic system are described inChap. 6.

Fig.4-42 Connecting the HP convector (min. 3) to the Daikin

4.7.13 Connecting switching contacts (AUX

The switching contacts (AUX outputs) can be used for various para­metrisable functions.

The A-A1-A2 switchover contact switches under the conditions set in
the [AUX switching function] parameter [→Main menu →Settings
→Inputs/Outputs] (see Controller operating instructions).

Installation and maintenance instructions

28

Altherma EHS(X/H)

outputs)

INFORMATION

When an A2 F or G-plus condensing boiler is connected,
the [AUX switching function] and [AUX time] parameters
must be set according to the required function [→Main
menu →Settings →Inputs/Outputs].

See Controller operating instructions → chapter Parameter
settings.

Precise information on the electrical connection and the re­quired parameter settings for such bivalent heating sys­tems are available on the Internet (www.daikin.com) or
from your service partner.

4.7.14 Off-peak mains connection (HT/NT)

If the outdoor unit is connected to an off-peak mains connection, the
S2S potential-free switching contact of the receiver (which evaluates
the low-tariff input signal output by the electricity supply company)
must be connected to the J8 connector, EVU connection on the Ro­Con BM2C printed circuit board (see Fig. 4-44).

When setting the [HT/NT Function] parameter >0 [→Main menu
→Settings →Inputs/Outputs], certain system components are
switched off at peak tariff times (see Controller operating instruc­tions).

The following types of off-peak mains connection are common:
▪ Type 1: With this type of off-peak mains connection, the power

supply to the heat pump outdoor unit is not interrupted.

▪ Type 2: With this type of off-peak mains connection, the power

supply to the heat pump outdoor unit is interrupted after a certain
period of time.

▪ Type 3: With this type of off-peak mains connection, the power

supply to the heat pump outdoor unit is interrupted immediately.

Potential-free switching contact S2S can be implemented as a nor­mally closed or normally open switching contact.

Daikin Altherma EHS(X/H)

Daikin Altherma integrated solar unit

008.1444099_00 – 07/2018 – EN