Daikin EGSQH10S18AA9W Installer reference guide

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Installer reference guide

Daikin Altherma ground source heat pump

	Installer reference guide	English
EGSQH10S18AA9W	Daikin Altherma ground source heat pump

Table of contents

6.4.3Overview of electrical connections except external

actuators ......................................................................

6.4.4Overview of electrical connections for external and

internal actuators .........................................................

1 General safety precautions			3
1.1	About the documentation ..........................................................		3
	1.1.1 Meaning of warnings and symbols..............................		3
1.2	For the installer..........................................................................		3
	1.2.1	General .......................................................................	3
	1.2.2	Installation site ............................................................	4
	1.2.3	Refrigerant ..................................................................	4
	1.2.4	Brine............................................................................	5
	1.2.5	Water ..........................................................................	5
	1.2.6	Electrical .....................................................................	5

2	About the documentation		6
	2.1	About this document..................................................................	6
	2.2	Installer reference guide at a glance .........................................	6
3	About the box		6
	3.1	Overview: About the box ...........................................................	6
	3.2	Indoor unit .................................................................................	7
		3.2.1 To unpack the indoor unit ...........................................	7
		3.2.2 To remove the accessories from the indoor unit.........	7
4 About the units and options			7
	4.1	Overview: About the units and options......................................	7
	4.2	Identification ..............................................................................	7
		4.2.1 Identification label: Indoor unit ....................................	7
	4.3	Possible options for the indoor unit ...........................................	7
5	Application guidelines		8
	5.1	Overview: Application guidelines...............................................	8
	5.2	Setting up the space heating system ........................................	9
		5.2.1 Single room.................................................................	9
		5.2.2 Multiple rooms – One LWT zone ................................	10
		5.2.3 Multiple rooms – Two LWT zones...............................	12
	5.3	Setting up an auxiliary heat source for space heating...............	13
	5.4	Setting up the domestic hot water tank .....................................	14
		5.4.1 System layout – Integrated DHW tank........................	14

5.4.2Selecting the desired temperature for the DHW tank . 14

	5.4.3	Setup and configuration – DHW tank..........................	15
	5.4.4	DHW pump for instant hot water.................................	15
	5.4.5	DHW pump for disinfection .........................................	15
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 ............................	16
5.6	Setting up the power consumption control ................................		16
	5.6.1	Permanent power limitation ........................................	17
	5.6.2	Power limitation activated by digital inputs .................	17
	5.6.3	Power limitation process .............................................	17
5.7	Setting up an external temperature sensor ...............................		18

	6 Preparation			18
6.1		Overview: Preparation...............................................................		18
6.2		Preparing installation site ..........................................................		18
		6.2.1	Installation site requirements of the indoor unit ..........	18
6.3		Preparing piping ........................................................................		18
		6.3.1	Circuit requirements....................................................	18
		6.3.2	Formula to calculate the expansion vessel pre-
			pressure ......................................................................	20
		6.3.3	To check the water volume and flow rate of the
			space heating circuit and brine circuit.........................	20
		6.3.4	Changing the pre-pressure of the expansion vessel...	21
		6.3.5	To check the water volume: Examples .......................	21
	6.4	Preparing electrical wiring		22
	6.4	Preparing electrical wiring		22
		6.4.1	About preparing electrical wiring.................................	22
		6.4.2	About preferential kWh rate power supply ..................	22

7 Installation			23
7.1	Overview: Installation .................................................................		23
7.2	Opening the units .......................................................................		23
	7.2.1	About opening the units ...............................................	23
	7.2.2	To open the indoor unit ................................................	23
	7.2.3	To open the switch box cover of the indoor unit ..........	24
7.3	Mounting the indoor unit.............................................................		24
	7.3.1	About mounting the indoor unit ....................................	24
	7.3.2	Precautions when mounting the indoor unit.................	24
	7.3.3	To install the indoor unit...............................................	24
7.4	Connecting the brine piping........................................................		25
	7.4.1	About connecting the brine piping................................	25
	7.4.2	Precautions when connecting the brine piping ............	25
	7.4.3	To connect the brine piping..........................................	26
	7.4.4	To fill the brine circuit ...................................................	26

7.4.5To connect the pressure relief valve to the drain on

		the brine side ...............................................................	26
	7.4.6	To insulate the brine piping..........................................	26
7.5	Connecting the water piping.......................................................		27
	7.5.1	About connecting the water piping...............................	27
	7.5.2	Precautions when connecting the water piping............	27
	7.5.3	To connect the water piping.........................................	27
	7.5.4	To connect the recirculation piping ..............................	27
	7.5.5	To connect the pressure relief valve to the drain .........	27
	7.5.6	To connect the drain hose ...........................................	28
	7.5.7	To fill the space heating circuit.....................................	28
	7.5.8	To fill the domestic hot water tank ...............................	28
	7.5.9	To insulate the water piping .........................................	28
7.6	Connecting the electrical wiring..................................................		28
	7.6.1	About connecting the electrical wiring..........................	28
	7.6.2	About electrical compliance .........................................	29
	7.6.3	Precautions when connecting the electrical wiring ......	29
	7.6.4	Guidelines when connecting the electrical wiring ........	29
	7.6.5	To connect the electrical wiring on the indoor unit.......	29
	7.6.6	To connect the main power supply ..............................	30
	7.6.7	To connect the remote outdoor sensor ........................	31
	7.6.8	To connect the user interface ......................................	31
	7.6.9	To connect the shut-off valve.......................................	32
	7.6.10	To connect the electrical meters ..................................	32
	7.6.11	To connect the domestic hot water pump ....................	32
	7.6.12	To connect the alarm output ........................................	33
	7.6.13	To connect the space heating ON/OFF output ............	33
	7.6.14	To connect the changeover to external heat source....	33
	7.6.15	To connect the power consumption digital inputs ........	33
7.7	Finishing the indoor unit installation ...........................................		33
	7.7.1	To fix the user interface cover to the indoor unit..........	33
	7.7.2	To close the indoor unit................................................	34

8 Configuration			34
8.1	Overview: Configuration .............................................................		34
	8.1.1	To connect the PC cable to the switch box..................	34
	8.1.2	To access the most used commands ..........................	34
	8.1.3	To copy the system settings from the first to the
		second user interface...................................................	35
	8.1.4	To copy the language set from the first to the second
		user interface ...............................................................	36
	8.1.5	Quick wizard: Set the system layout after first power
		ON................................................................................	36
8.2	Basic configuration .....................................................................		36
	8.2.1	Quick wizard: Language / time and date......................	36
	8.2.2	Quick wizard: Standard................................................	36
	8.2.3	Quick wizard: Options ..................................................	38
	8.2.4	Quick wizard: Capacities (energy metering) ................	40
	8.2.5	Space heating control ..................................................	40
	8.2.6	Domestic hot water control ..........................................	43
	8.2.7	Contact/helpdesk number ............................................	43

Installer reference guide	EGSQH10S18AA9W
2	Daikin Altherma ground source heat pump
2	4P351748-1C – 2015.10

1 General safety precautions

	8.3	Advanced configuration/optimization.........................................		43
		8.3.1 Space heating operation: advanced ...........................		43
		8.3.2 Domestic hot water control: advanced........................		46
		8.3.3	Heat source settings ...................................................	49
		8.3.4	System settings...........................................................	50
	8.4	Menu structure: Overview user settings ....................................		53
	8.5	Menu structure: Overview installer settings...............................		54
9	Commissioning			55
	9.1	Overview: Commissioning.........................................................		55
	9.2	Precautions when commissioning .............................................		55
	9.3	Checklist before commissioning................................................		55
	9.4	Checklist during commissioning ................................................		55
		9.4.1 To check the minimum flow rate .................................		55
		9.4.2 Air purge function on the space heating circuit ...........		55
		9.4.3 Air purge function on the brine circuit .........................		56
		9.4.4 To perform a test run ..................................................		57
		9.4.5 To perform an actuator test run ..................................		58
		9.4.6 Underfloor heating screed dryout................................		58
10	Hand-over to the user			59
	10.1	To fix the applicable language on the unit name plate ..............		59
11	Maintenance and service			60

1 General safety precautions

1.1About the documentation

▪The original documentation is written in English. All other languages are translations.

▪The precautions described in this document cover very important topics, follow them carefully.

▪The installation of the system, and all activities described in the installation manual and the installer reference guide must be performed by an authorized installer.

1.1.1Meaning 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

11.1	Overview: Maintenance and service .........................................	60	Indicates a situation that could result in burning because of
11.2	Maintenance safety precautions................................................	60	extreme hot or cold temperatures.
11.3	Checklist for yearly maintenance of the indoor unit	60
11.3	Checklist for yearly maintenance of the indoor unit	60
11.4	To drain the domestic hot water tank ........................................	61	WARNING
12 Troubleshooting		61	Indicates a situation that could result in death or serious
12.1	Overview: Troubleshooting........................................................	61	injury.
12.2	Precautions when troubleshooting	61
12.2	Precautions when troubleshooting	61	CAUTION
12.3	Solving problems based on symptoms	62	CAUTION
12.3	Solving problems based on symptoms	62	Indicates a situation that could result in minor or moderate
	12.3.1 Symptom: The unit is NOT heating as expected ........	62
	12.3.2 Symptom: The compressor does NOT start (space		injury.
	.............................heating or domestic water heating)	62
		62	NOTICE
	12.3.3 Symptom: The pump is making noise (cavitation) ......	62	NOTICE
	12.3.4 Symptom: The pressure relief valve opens.................	62	Indicates a situation that could result in equipment or
	12.3.5 Symptom: The pressure relief valve leaks ..................	63	property damage.

12.3.6Symptom: The space is NOT sufficiently heated at

low outdoor temperatures ...........................................	63	INFORMATION
12.3.7 Symptom: The pressure at the tapping point is		Indicates useful tips or additional information.
temporarily unusual high.............................................	63	Indicates useful tips or additional information.
	63

12.3.8Symptom: Decoration panels are pushed away due

to a swollen tank .........................................................	63	1.2	For the installer

12.3.9Symptom: Tank disinfection function is NOT

	completed correctly (AH-error)....................................	63	1.2.1	General
	12.4 Solving problems based on error codes....................................	63	1.2.1	General
	12.4.1 Error codes: Overview ................................................	64	If you are not sure how to install or operate the unit, contact your

13	Disposal	65	dealer.

14	Technical data	66		NOTICE

14.1	Overview: Technical data ..........................................................	66
14.2	Dimensions and service space..................................................	66
	14.2.1 Dimensions and service space: Indoor unit ................	66
14.3	Components ..............................................................................	69
	14.3.1 Components: Switch box (indoor unit) ........................	69
14.4	Piping diagram ..........................................................................	70
	14.4.1 Piping diagram: Indoor unit .........................................	70
14.5	Wiring diagram ..........................................................................	71
	14.5.1 Wiring diagram: Indoor unit.........................................	71
14.6	Technical specifications ............................................................	79
	14.6.1 Technical specifications: Indoor unit ...........................	79
14.7	Operation range ........................................................................	82
	14.7.1 Operation range: Indoor unit .......................................	82
14.8	ESP curve .................................................................................	84
	14.8.1 ESP curve: Indoor unit ................................................	84

Improper installation or attachment of equipment or accessories could result in electric shock, short-circuit, leaks, fire or other damage to the equipment. Only use accessories, optional equipment and spare parts made or approved by Daikin.

WARNING

Make sure installation, testing and applied materials comply with applicable legislation (on top of the instructions described in the Daikin documentation).

CAUTION

Wear adequate personal protective equipment (protective gloves, safety glasses,…) when installing, maintaining or servicing the system.

15	Glossary	85
16	Field settings table	86

EGSQH10S18AA9W	Installer reference guide
Daikin Altherma ground source heat pump	3
4P351748-1C – 2015.10	3

1 General safety precautions

WARNING

Tear apart and throw away plastic packaging bags so that nobody, especially children, can play with them. Possible risk: suffocation.

DANGER: RISK OF BURNING

▪Do NOT touch the refrigerant piping, water piping or internal parts during and immediately after operation. It could be too hot or too cold. Give it time to return to normal temperature. If you must touch it, wear protective gloves.

▪Do NOT touch any accidental leaking refrigerant.

WARNING

Provide adequate measures to prevent that the unit can be used as a shelter by small animals. Small animals that make contact with electrical parts can cause malfunctions, smoke or fire.

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.

1.2.2Installation 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.

1.2.3Refrigerant

If applicable. See the installation manual or installer reference guide of your application for more information.

NOTICE

Make sure refrigerant piping installation complies with applicable legislation. In Europe, EN378 is the applicable standard.

NOTICE

Make sure the field piping and connections are not subjected to stress.

WARNING

During tests, NEVER pressurize the product with a pressure higher than the maximum allowable pressure (as indicated on the nameplate of the unit).

WARNING

Take sufficient precautions in case of refrigerant leakage. If refrigerant gas leaks, ventilate the area immediately. Possible risks:

▪Excessive refrigerant concentrations in a closed room can lead to oxygen deficiency.

▪Toxic gas may be produced if refrigerant gas comes into contact with fire.

WARNING

Always recover the refrigerant. Do NOT release them directly into the environment. Use a vacuum pump to evacuate the installation.

NOTICE

After all the piping has been connected, make sure there is no gas leak. Use nitrogen to perform a gas leak detection.

NOTICE

▪To avoid compressor breakdown, do NOT charge more than the specified amount of refrigerant.

▪When the refrigerant system is to be opened, refrigerant must be treated according to the applicable legislation.

WARNING

Make sure there is no oxygen in the system. Refrigerant may only be charged after performing the leak test and the vacuum drying.

▪In case re-charge is required, refer to the nameplate of the unit. It states the type of refrigerant and necessary amount.

▪The unit is factory charged with refrigerant and depending on pipe sizes and pipe lengths some systems require additional charging of refrigerant.

▪Only use tools exclusively for the refrigerant type used in the system, this to ensure pressure resistance and prevent foreign materials from entering into the system.

▪Charge the liquid refrigerant as follows:

If	Then
A siphon tube is present	Charge with the cylinder upright.
(i.e., the cylinder is marked with
"Liquid filling siphon attached")
"Liquid filling siphon attached")



	Installer reference guide	EGSQH10S18AA9W
4		Daikin Altherma ground source heat pump
4		4P351748-1C – 2015.10

1 General safety precautions

If	Then
A siphon tube is NOT present	Charge with the cylinder upside
	down.

▪Open refrigerant cylinders slowly.

▪Charge the refrigerant in liquid form. Adding it in gas form may prevent normal operation.

CAUTION

When the refrigerant charging procedure is done or when pausing, close the valve of the refrigerant tank immediately. If the valve is not closed immediately, remaining pressure might charge additional refrigerant.

Possible consequence: Incorrect refrigerant amount.

1.2.4Brine

If applicable. See the installation manual or installer reference guide of your application for more information.

WARNING

The selection of the brine MUST be in accordance with the applicable legislation.

WARNING

Take sufficient precautions in case of brine leakage. If brine leaks, ventilate the area immediately and contact your local dealer.

WARNING

The ambient temperature inside the unit can get much higher than that of the room, e.g. 70°C. In case of a brine leak, hot parts inside the unit can create a hazardous situation.

WARNING

The use and installation of the application MUST comply with the safety and environmental precautions specified in the applicable legislation.

1.2.5Water

If applicable. See the installation manual or installer reference guide of your application for more information.

NOTICE

Make sure water quality complies with EU directive

98/83 EC.

1.2.6Electrical

DANGER: RISK OF ELECTROCUTION

▪Turn OFF all power supply before removing the switch box cover, connecting electrical wiring or touching electrical parts.

▪Disconnect the power supply for more than 1 minute, and measure the voltage at the terminals of main circuit capacitors or electrical components before servicing. The voltage MUST be less than 50 V DC before you can touch electrical components. For the location of the terminals, see the wiring diagram.

▪Do NOT touch electrical components with wet hands.

▪Do NOT leave the unit unattended when the service cover is removed.

WARNING

If NOT factory installed, a main switch or other means for disconnection, having a contact separation in all poles providing full disconnection under overvoltage category III condition, shall be installed in the fixed wiring.

WARNING

▪ONLY use copper wires.

▪Make sure the field wiring complies with the applicable legislation.

▪All field wiring must be performed in accordance with the wiring diagram supplied with the product.

▪NEVER squeeze bundled cables and make sure they do not come in contact with the piping and sharp edges. Make sure no external pressure is applied to the terminal connections.

▪Make sure to install earth wiring. Do NOT earth the unit to a utility pipe, surge absorber, or telephone earth. Incomplete earth may cause electrical shock.

▪Make sure to use a dedicated power circuit. NEVER use a power supply shared by another appliance.

▪Make sure to install the required fuses or circuit breakers.

▪Make sure to install an earth leakage protector. Failure to do so may cause electric shock or fire.

▪When installing the earth leakage protector, make sure it is compatible with the inverter (resistant to high frequency electric noise) to avoid unnecessary opening of the earth leakage protector.



EGSQH10S18AA9W	Installer reference guide
Daikin Altherma ground source heat pump	5
4P351748-1C – 2015.10	5

2 About the documentation

NOTICE

Precautions when laying power wiring:

▪Do not connect wiring of different thicknesses to the power terminal block (slack in the power wiring may cause abnormal heat).

▪When connecting wiring which is the same thickness, do as shown in the figure below.

▪Addendum book for optional equipment:

▪Additional info about how to install optional equipment

▪Format: Paper (in the box of the indoor unit) + Digital files on http://www.daikineurope.com/support-and-manuals/product- information/

Latest revisions of the supplied documentation may be available on the regional Daikin website or via your dealer.

The original documentation is written in English. All other languages are translations.

▪For wiring, use the designated power wire and connect firmly, then secure to prevent outside pressure being exerted on the terminal board.

▪Use an appropriate screwdriver for tightening the terminal screws. A screwdriver with a small head will damage the head and make proper tightening impossible.

▪Over-tightening the terminal screws may break them.

Install power cables at least 1 metre away from televisions or radios to prevent interference. Depending on the radio waves, a distance of 1 metre may not be sufficient.

WARNING

▪After finishing the electrical work, confirm that each electrical component and terminal inside the electrical components box is connected securely.

▪Make sure all covers are closed before starting up the unit.

NOTICE

Only applicable if the power supply is three phase, and the compressor has an ON/OFF starting method.

If there exists the possibility of reversed phase after a momentary black out and the power goes on and off while the product is operating, attach a reversed phase protection circuit locally. Running the product in reversed phase can break the compressor and other parts.

2 About the documentation

2.1About this document

Target audience

Authorised installers

Documentation set

This document is part of a documentation set. The complete set consists of:

▪General safety precautions:

▪Safety instructions that you must read before installing

▪Format: Paper (in the box of the indoor unit)

▪Indoor unit installation manual:

▪Installation instructions

▪Format: Paper (in the box of the indoor unit)

▪Installer reference guide:

▪Preparation of the installation, technical specifications, good practices, reference data,…

▪Format: Digital files on http://www.daikineurope.com/support- and-manuals/product-information/

2.2Installer reference guide at a glance

Chapter	Description
General safety	Safety instructions that you must read
precautions	before installing
About the documentation	What documentation exists for the
	installer
About the box	How to unpack the units and remove
	their accessories
About the units and	▪ How to identify the units
options	▪ Possible combinations of units and
	▪ Possible combinations of units and
	options

Application guidelines	Various installation setups of the system
Preparation	What to do and know before going
	on site
Installation	What to do and know to install the
	system
Configuration	What to do and know to configure the
	system after it is installed
Commissioning	What to do and know to commission the
	system after it is configured
Hand over to the user	What to give and explain to the user

Maintenance and service	How to maintain and service the units

Troubleshooting	What to do in case of problems
Disposal	How to dispose of the system

Technical data	Specifications of the system
Glossary	Definition of terms
Field settings table	Table to be filled in by the installer, and
	kept for future reference
	Note: There is also an installer settings
	table in the user reference guide. This
	table has to be filled in by the installer
	and handed over to the user.

3 About the box

3.1Overview: About the box

This chapter describes what you have to do after the box with the indoor unit is delivered on-site.

It contains information about:

▪Unpacking and handling the units

▪Removing the accessories from the units

Keep the following in mind:

▪At delivery, the unit must be checked for damage. Any damage must be reported immediately to the carrier's claims agent.

▪Bring the packed unit as close as possible to its final installation position to prevent damage during transport.

Installer reference guide	EGSQH10S18AA9W
6	Daikin Altherma ground source heat pump
6	4P351748-1C – 2015.10

4 About the units and options

3.2Indoor unit

3.2.1To unpack the indoor unit

3.2.2To remove the accessories from the indoor unit

1Remove the screws at the top of the unit.

2Remove the top panel.

4×

3 Remove the accessories.

a	b	c	d
1×	1×	1×	1×
e	f		g
1×		1×	1×

aGeneral safety precautions

bAddendum book for optional equipment

cInstallation manual

dOperation manual

eRemote outdoor sensor

fUser interface kit cover

gMultilingual fluorinated greenhouse gases label

4 Reinstall the top panel.

4 About the units and options

4.1Overview: About the units and options

This chapter contains information about:

▪Identifying the indoor unit

▪Combining the indoor unit with options

4.2Identification

NOTICE

When installing or servicing several units at the same time, make sure NOT to switch the service panels between different models.

4.2.1Identification label: Indoor unit

Location

Model identification

Example: E GS Q H 10 S 18 AA 9W

Code	Description
E	European model
GS	Ground source heat pump
Q	Refrigerant R410A

H	Heating only
10	Capacity class
S	Integrated tank material: Stainless steel

18	Integrated tank volume
AA	Model series

9W	Backup heater model

4.3Possible options for the indoor unit

User interface (EKRUCBL*)

The user interface and a possible additional user interface are available as an option.

The additional user interface can be connected:

▪To have both:

▪control close to the indoor unit,

▪room thermostat functionality in the principal space to be heated.

▪To have an interface containing other languages.

Following user interfaces are available:

EGSQH10S18AA9W	Installer reference guide
Daikin Altherma ground source heat pump	7
4P351748-1C – 2015.10	7

5 Application guidelines

▪EKRUCBL1 contains following languages: German, French, Dutch, Italian.

▪EKRUCBL2 contains following languages: English, Swedish, Norwegian, Finnish.

▪EKRUCBL3 contains following languages: English, Spanish, Greek, Portuguese.

▪EKRUCBL4 contains following languages: English, Turkish, Polish, Romanian.

▪EKRUCBL5 contains following languages: German, Czech, Slovenian, Slovakian.

▪EKRUCBL6 contains following languages: English, Croatian, Hungarian, Estonian.

▪EKRUCBL7 contains following languages: English, German, Russian, Danish.

Languages on the user interface can be uploaded by PC software or copied from an user interface to the other.

For installation instructions, see "7.6.8 To connect the user interface" on page 31.

Simplified user interface (EKRUCBS)

▪The simplified user interface can only be used in combination with the main user interface.

▪The simplified user interface acts as room thermostat and needs to be installed in the room that you want it to control.

For installation instructions, see the installation and operation manual of the simplified user interface.

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

INFORMATION

The remote indoor sensor can only be used in case the user interface is configured with room thermostat functionality.

PC configurator (EKPCCAB)

The PC cable makes a connection between the switch box of the indoor unit and a PC. It gives the possibility to upload different language files to the user interface and indoor parameters to the indoor unit. For the available language files, contact your local dealer.

The software and corresponding operating instructions are available on http://www.daikineurope.com/support-and-manuals/software- downloads/.

For installation instructions, see the installation manual of the PC cable and "8 Configuration" on page 34.

Heat pump convector (FWXV)

For providing space heating/cooling, it is possible to use heat pump convectors (FWXV).

For installation instructions, refer to the installation manual of the heat pump convectors, and the addendum book for optional equipment.

Cable for brine pressure switch connection (EKGSCONBP1)

Depending on the applicable legislation, you might have to install a brine pressure switch (field supply). To connect the brine pressure switch to the unit, you can use the cable for brine pressure switch connection.

For installation instructions, see the installation manual of the cable for brine pressure switch connection.

NOTICE

Daikin recommends to use a mechanical brine pressure switch. If an electrical brine pressure switch is used, capacitive currents might disturb the flow switch operation causing an error on the unit.

Brine filling kit (KGSFILL)

Brine filling valve kit for flushing, filling, and draining the brine circuit.

5 Application guidelines

▪Space heating On/OFF output

▪Changeover to external heat source

For installation instructions, see the installation manual of the digital I/O PCB and addendum book for optional equipment.

5.1Overview: Application guidelines

The purpose of the application guidelines is to give a glance of the possibilities of the Daikin heat pump system.

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.

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 34.

INFORMATION

Energy metering functionality is NOT applicable and/or

NOT valid for this unit if it is calculated by the unit. If optional external meters are used, energy metering display is valid.

This chapter contains application guidelines for:

▪ Setting up the space heating system

Installer reference guide	EGSQH10S18AA9W
8	Daikin Altherma ground source heat pump
8	4P351748-1C – 2015.10

5 Application guidelines

▪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

5.2Setting up the space heating system

The Daikin heat pump system supplies leaving water to heat emitters in one or more rooms.

Because the system offers a wide flexibility to control the temperature in each room, you need to answer the following questions first:

▪How many rooms are heated by the Daikin heat pump system?

▪Which heat emitter types are used in each room and what is their design leaving water temperature?

Once the space heating requirements are clear, Daikin recommends to follow the setup guidelines below.

NOTICE

▪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 EKRUCBL*) installed in the room and used as room thermostat

Configuration

	Setting	Value
Unit temperature control:		2 (RT control): Unit operation is
▪	#: [A.2.1.7]	decided based on the ambient
▪	#: [A.2.1.7]	temperature of the user interface.
▪	Code: [C-07]	temperature of the user interface.
▪	Code: [C-07]

Number of water temperature		0 (1 LWT zone): Main
zones:
▪	#: [A.2.1.8]
▪	Code: [7-02]

Benefits

▪Cost effective. You do NOT need an additional external room thermostat.

If an external room thermostat is used, the external room thermostat will control the room frost protection. However, the room frost protection is only possible if the leaving water temperature control on the unit's user interface is turned ON.

INFORMATION

In case an external room thermostat is used and room frost protection needs to be guaranteed in all conditions, then you have to set auto emergency [A.5.1.2] to 1.

5.2.1Single room

Under floor heating or radiators – Wired room thermostat

Setup

AMain leaving water temperature zone

BOne single room

aUser interface used as room thermostat

▪The under floor heating or radiators are directly connected to the indoor unit.

▪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

AMain leaving water temperature zone

BOne single room

aReceiver for wireless external room thermostat

bWireless external room thermostat

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5 Application guidelines

▪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:		1	(Ext RT control): Unit operation
▪	#: [A.2.1.7]	is decided by the external
		thermostat.
▪	Code: [C-07]


Number of water temperature		0	(1 LWT zone): Main
zones:

▪#: [A.2.1.8]

▪Code: [7-02]

External room thermostat for the		1 (Thermo ON/OFF): When the
main zone:		used external room thermostat or
▪	#: [A.2.2.4]	heat pump convector can only
		send a thermo ON/OFF
▪	Code: [C-05]
		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.

Heat pump convectors

Setup

AMain leaving water temperature zone

BOne single room

aRemote controller of the heat pump convectors

▪The under floor heating or radiators 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 demand signal is sent to one digital input on the indoor unit (X2M/1 and X2M/4).

INFORMATION

When using multiple heat pump convectors, make sure each one receives the infrared signal from the remote controller of the heat pump convectors.

Configuration

	Setting		Value
Unit temperature control:		1	(Ext RT control): Unit operation
▪	#: [A.2.1.7]	is decided by the external
		thermostat.
▪	Code: [C-07]


Number of water temperature		0	(1 LWT zone): Main
zones:

▪#: [A.2.1.8]

▪Code: [7-02]

External room thermostat for the		1 (Thermo ON/OFF): When the
main zone:		used external room thermostat or
▪	#: [A.2.2.4]	heat pump convector can only
		send a thermo ON/OFF
▪	Code: [C-05]
		condition.

Benefits

▪Efficiency. Optimal energy efficiency because of the interlink function.

▪Stylish.

5.2.2Multiple 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
A
B	C
	T
	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.

Installer reference guide	EGSQH10S18AA9W
10	Daikin Altherma ground source heat pump
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5 Application guidelines

▪A thermostatic valve is installed before the under floor heating in each of the other rooms.

INFORMATION

Mind situations where the main room can be heated by

another heating source. Example: Fireplaces.

Configuration

	Setting		Value
Unit temperature control:		2	(RT control): Unit operation is
▪	#: [A.2.1.7]	decided based on the ambient
		temperature of the user interface.
▪	Code: [C-07]

Number of water temperature		0	(1 LWT zone): Main
zones:

▪#: [A.2.1.8]

▪Code: [7-02]

Benefits

▪Cost effective.

▪Easy. Same installation as for one room, but with thermostatic valves.

Under floor heating or radiators – Multiple external room thermostats

Setup
A
B	C
M1	M2	b
M1	M2
a		a

AMain leaving water temperature zone

BRoom 1

CRoom 2

aExternal room thermostat

bBypass valve

▪For each room, a shut-off valve (field supplied) is installed to avoid leaving water supply when there is no heating demand.

▪A bypass valve must be installed to make water recirculation possible when all shut-off valves are closed.To guarantee reliable operation, provide a minimum water flow rate as described in "6.3.3 To check the water volume and flow rate of the space heating circuit and brine circuit" on page 20.

▪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:		1 (Ext RT control): Unit operation
▪	#: [A.2.1.7]	is decided by the external
▪	#: [A.2.1.7]	thermostat.
▪	Code: [C-07]	thermostat.
▪	Code: [C-07]

Number of water temperature		0 (1 LWT zone): Main
zones:
▪	#: [A.2.1.8]
▪	Code: [7-02]

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
A	C
B	C
a	a

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 heating demand signals of each heat pump convector are connected in parallel to the digital input on the indoor unit (X2M/1 and X2M/4). The indoor unit will only supply leaving water temperature when there is an actual demand.

INFORMATION

To increase comfort and performance, Daikin recommends to install the valve kit option EKVKHPC on each heat pump convector.

Configuration

	Setting		Value
Unit temperature control:		1	(Ext RT control): Unit operation
▪	#: [A.2.1.7]	is decided by the external
		thermostat.
▪	Code: [C-07]


Number of water temperature		0	(1 LWT zone): Main
zones:

▪#: [A.2.1.8]

▪Code: [7-02]

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5 Application guidelines

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.

Combination: Under floor heating + Heat pump

convectors
Setup
A
B	C
M1
	b
	a

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: A shut-off valve (field supply) is installed before the under floor heating. It prevents hot water supply when the room has no heating demand.

▪For each room with heat pump convectors: The desired room temperature is set via the remote controller of the heat pump convectors.

▪For each room with under floor heating: The desired room temperature is set via the external room thermostat (wired or wireless).

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:		0	(LWT control): Unit operation is
▪	#: [A.2.1.7]	decided based on the leaving
		water temperature.
▪	Code: [C-07]

Number of water temperature		0	(1 LWT zone): Main
zones:

▪#: [A.2.1.8]

▪Code: [7-02]

5.2.3Multiple 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

▪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) 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: 35°C

Bed rooms (additional zone)	Heat pump convectors: 45°C

Setup
		A	C
		B	C
		a	a
	c	D
d	c	E
d
			b

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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5 Application guidelines

▪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 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.

Configuration

	Setting	Value
Unit temperature control:		2 (RT control): Unit operation is
▪	#: [A.2.1.7]	decided based on the ambient
▪	#: [A.2.1.7]	temperature of the user interface.
▪	Code: [C-07]	temperature of the user interface.
▪	Code: [C-07]	Note:
		Note:
		▪ Main room = user interface
		used as room thermostat
		functionality
		▪ Other rooms = external room
		thermostat functionality
Number of water temperature		1 (2 LWT zones): Main +
zones:		additional
▪	#: [A.2.1.8]
▪	Code: [7-02]
In case of heat pump convectors:		1 (Thermo ON/OFF): When the
External room thermostat for the		used external room thermostat or
additional zone:		heat pump convector can only
additional zone:		send a thermo ON/OFF
▪	#: [A.2.2.5]	send a thermo ON/OFF
▪	#: [A.2.2.5]	condition.
▪	Code: [C-06]
Shut-off valve output		Set to follow the thermo demand
		of the main zone.
At the mixing valve station		Set the desired main leaving
		water temperature.

Benefits

▪Comfort.

▪The smart room thermostat functionality can decrease or increase the desired leaving water temperature based on the actual room temperature (modulation).

▪The combination of the two heat emitter systems provides the excellent heating comfort of the under floor heating, and the rapid air heat up of the heat pump convectors (e.g., living room=under floor heating and the bedroom=convector (no continuous heating)).

▪Efficiency.

▪Depending on the demand, the indoor unit supplies different leaving water temperature matching the design temperature of the different heat emitters.

▪Under floor heating has the best performance with Altherma LT.

5.3Setting 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 weatherdependent operation is active, the water temperature is determined automatically depending on the outdoor temperature.

▪During heating operation of the auxiliary boiler, the auxiliary boiler operates to achieve the desired water temperature set via the auxiliary boiler controller.

Setup

▪ Integrate the auxiliary boiler as follows:

	e	f	h
		f
		g
a	c	i
		i
d	j	g
d
b	b
			FHL1
			FHL2
			FHL3

aIndoor unit

bHeat exchanger

cBackup heater

dPump

eShut-off valve (field supply)

fNon-return valve (field supply)

gShut-off valve (field supply)

hCollector (field supply)

iAuxiliary boiler (field supply)

jAquastat valve (field supply) 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.



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5 Application guidelines

▪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 system" on page 9.

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.

▪Frequent changeover may cause corrosion of the auxiliary boiler. Contact the manufacturer of the auxiliary boiler for more information.

Changeover to external heat source decided by an auxiliary contact

▪Only possible in external room thermostat control AND one leaving water temperature zone (see "5.2 Setting up the space heating system" on page 9).

▪The auxiliary contact can be:

▪An outdoor temperature thermostat

▪An electricity tariff contact

▪A manually operated contact

▪…

▪Setup: Connect the following field wiring:

Com

Indoor

Indoor/Auto/Boiler

BTI

X2M

K1A

K2A

K1A

K2A

BTI

Boiler thermostat input

Auxiliary contact (normal closed)

Heating demand room thermostat (optional)

K1A

Auxiliary relay for activation of indoor unit (field supply)

K2A

Auxiliary relay for activation of boiler (field supply)

Indoor

Indoor unit

Auto

Automatic

Boiler

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.

5.4Setting up the domestic hot water tank

5.4.1System layout – Integrated DHW tank

	g	g	h
a	e
d	M
d
b c
			FHL1
			FHL2
			FHL3
			UI
	f

aIndoor unit

bHeat exchanger

cBackup heater

dPump

eMotorised 3 way valve

fDHW tank

gShut-off valve (field supply)

hCollector (field supply) FHL1...3 Under floor heating

UI User interface

5.4.2Selecting the 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:

1Determining the DHW consumption (equivalent hot water volume at 40°C).

Installer reference guide

2Determining the volume and desired temperature for the DHW tank.

EGSQH10S18AA9W Daikin Altherma ground source heat pump 4P351748-1C – 2015.10

5 Application guidelines

Possible DHW tank volumes

Type	Possible volumes
Integrated DHW tank	▪ 180 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.

▪The heat pump itself can produce domestic hot water of maximum 55°C. 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.

▪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	1 shower=10 min×10 l/min=100 l
per day?

How many baths are needed per 1 bath=150 l day?

How much water is needed at the 1 sink=2 min×5 l/min=10 l kitchen sink per day?

Are there any other domestic hot — water needs?

Example: If the DHW consumption of a family (4 persons) per day is as follows:

▪3 showers

▪1 bath

▪3 sink volumes

Then the DHW consumption = (3×100 l)+(1×150 l)+(3×10 l)=480 l

Determining the volume and desired temperature for the DHW tank

	Formula		Example
V1=V2+V2×(T2−40)/(40−T1)		If:
		▪	V2=180 l
		▪	T2=54°C
		▪	T1=15°C
		Then V1=280 l
V2=V1×(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

5.4.3Setup 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 more information about optimizing the energy consumption for producing domestic hot water, see "8 Configuration" on page 34.

5.4.4DHW pump for instant hot water

Setup

aDHW tank

bDHW pump (field supply)

cShower (field supply)

dCold water

eDomestic hot water OUT

fRecirculation connection

▪By connecting a DHW pump, instant hot water can be available at the tap.

▪The DHW pump and the installation are field supply and the responsibility of the installer.

▪For more information about connecting the recirculation connection: see "7 Installation" on page 23.

Configuration

▪For more information, see "8 Configuration" on page 34.

▪You can program a schedule to control the DHW pump via the user interface. For more information, see the user reference guide.

5.4.5DHW pump for disinfection

Setup

h	c	e
a	d	f
	d	f

aDHW tank

bDHW pump (field supply)

cHeater element (field supply)

dNon return valve (field supply)

eShower (field supply)

fCold water

gDomestic hot water OUT

hRecirculation connection

▪The DHW pump is field-supplied and its installation is the responsibility of the installer.

▪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.

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5 Application guidelines

Configuration

The indoor unit can control DHW pump operation. For more information, see "8 Configuration" on page 34.

5.5Setting 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 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.

5.5.1Produced heat

INFORMATION

The sensors used to calculate the produced heat are calibrated automatically.

▪The produced heat is calculated internally based on:

▪The leaving and entering water temperature

▪The flow rate

▪Setup and configuration: No additional equipment needed.

5.5.2Consumed energy

Measuring the consumed energy

▪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 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.

5.5.3Normal kWh rate power supply

General rule

One power meter that covers the entire system is sufficient.

Setup

Connect the power meter to X5M/7 and X5M/8.

Power meter type

Use a three-phase power meter.

Installer reference guide

Example

450896.005

e d A

A Indoor unit

aElectrical cabinet (L1/L2/L3/N)

bPower meter (L1/L2/L3/N)

cFuse (L1/L2/L3/N)

dBackup heater (L1/L2/L3/N)

eIndoor unit (L1/L2/L3/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.

▪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 16 for an example with two power meters.

5.5.4Preferential kWh rate power supply

Setup

▪Connect power meter 1 to X5M/7 and X5M/8.

▪Connect power meter 2 to X5M/9 and X5M/10.

Refer to "6.4.3 Overview of electrical connections except external actuators" on page 22.

5.6Setting up the power consumption control

▪The power consumption control:

▪Allows you to limit the power consumption of the entire system (sum of indoor unit and backup 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

EGSQH10S18AA9W Daikin Altherma ground source heat pump 4P351748-1C – 2015.10

5 Application guidelines

INFORMATION

▪During emergency operation, the power consumption control will NOT be used. This is because the backup heater has a higher capacity then during normal operation (9 kW instead of 6 kW) and therefore the power calculated by the unit will be lower then the actual power.

▪If power limitation is enabled, water temperature set points above 60°C in space heating are NOT guaranteed.

5.6.1Permanent 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.

Pi Power input t Time

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 as described in "To modify an overview setting" on page 35 via the user interface (for the description of all settings, see "8 Configuration" on page 34):

▪Select full time limitation mode

▪Select the type of limitation (power in kW or current in A)

▪Set the desired power limitation level

NOTICE

Set a minimum power consumption of ±3 kW to guarantee space heating and DHW production by allowing at least backup heater step 1.

5.6.2Power 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. 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…).

B a

A8P 21

AIndoor unit

BEnergy management system

aPower limitation activation (4 digital inputs)

bBackup heater

Pi	a
DI1	a
DI1
DI3
DI4		b
DI4
	Pi	t
		t
		Power input
	t	Time

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" on page 71.

Configuration

Set the power consumption control settings as described in "To modify an overview setting" on page 35 via the user interface (for the description of all settings, see "8 Configuration" on page 34):

▪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.

5.6.3Power limitation process

The compressor has better efficiency than the electrical heater. Therefore, the electrical heater is limited and turned OFF first. The system limits power consumption in the following order:

1Limits electrical heater.

2Turn OFF the electrical heater.

3Limits the compressor.

4Turns OFF the compressor.



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6 Preparation

Example

				d
			c
			c

	b

a					Ce
	A			B	Ce
	A			B
		Ph	Produced heat
		Ce	Consumed energy

ACompressor

BBackup heater

aLimited compressor operation

bFull compressor operation

cBackup heater step 1 turned ON

dBackup heater step 2 turned ON

6.2Preparing 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.

6.2.1Installation site requirements of the indoor unit

INFORMATION

Also read the precautions and requirements in the

"General safety precautions" chapter.

▪ Mind the following spacing installation guidelines:

5.7Setting up an external temperature sensor

Indoor ambient temperature

You can connect one external temperature sensor. It can measure the indoor ambient temperature. Daikin recommends to use an external temperature sensor in the following cases:

▪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

The remote outdoor sensor (delivered as accessory) measures the outdoor ambient temperature.

▪Setup:

▪To install the remote outdoor sensor outside, see the installation manual of the sensor (delivered as accessory).

▪To connect the remote outdoor sensor to the indoor unit, see "7.6.7 To connect the remote outdoor sensor" on page 31.

▪Configuration: None.

6 Preparation

6.1Overview: Preparation

This chapter describes what you have to do and know before going on-site.

It contains information about:

▪Preparing the installation site

▪Preparing the piping

▪Preparing the electrical wiring

Installer reference guide

≥50 ≥50

<![if ! IE]>

<![endif]>>500

(mm)

Do NOT install the unit in places such as:

▪In places where a mineral oil mist, spray or vapour may be present in the atmosphere. Plastic parts may deteriorate and fall off or cause water leakage.

▪Sound sensitive areas (e.g. near a bedroom and the like), so that the operation noise will cause no trouble.

▪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 from 5~30°C.

6.3Preparing piping

6.3.1Circuit requirements

INFORMATION

Also read the precautions and requirements in the "General safety precautions" chapter.

Circuit types. Except for the refrigerant circuit, inside the unit 2 other circuits are included. For future references: the circuit connected to the bore hole is referred to as the brine circuit, the other circuit connected to the heating emitters is referred to as the space heating circuit.

▪Connecting piping – Legislation. Make all piping connections in accordance with the applicable legislation and the instructions in the "Installation" chapter, respecting the water inlet and outlet.

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6 Preparation

▪Connecting piping – Force. Do NOT use excessive force when connecting the piping. Deformation of the piping can cause malfunctioning of the unit.

▪Connecting piping – Tools. Only use appropriate tooling to handle brass, which is a soft material. If NOT, pipes will get damaged.

▪Connecting piping – Air, moisture, dust. If air, moisture or dust gets into the circuit, problems may occur. To prevent this:

▪Only use clean pipes

▪Hold the pipe end downwards when removing burrs.

▪Cover the pipe end when inserting it through a wall, to prevent dust and/or particles entering the pipe.

▪Use a decent thread sealant to seal connections.

▪Closed circuit. Use the indoor unit ONLY in a closed water system for brine circuit and space heating circuit. Using the system in an open water system will lead to excessive corrosion.

WARNING

When connecting to an open groundwater system, an intermediate heat exchanger is required to prevent damage (dirt, freeze ups) to the unit.

▪Glycol. For safety reasons, it is NOT allowed to add any kind of glycol to the space heating circuit.

▪Piping length. It is recommended to avoid long runs of piping between the domestic hot water tank and the hot water end point

(shower, bath,…) and to avoid dead ends.

▪Piping diameter. Select the piping diameter in relation to the required flow and the available external static pressure of the pump. See "14 Technical data" on page 66 for the external static pressure curves of the indoor unit.

▪Fluid flow. You can find the minimum required water for the indoor unit operation in the following table. When the flow is lower, flow error 7H will be displayed and the indoor unit will be stopped.

Model		Minimum flow during backup heater
		operation
10	▪	Space heating circuit: 12 l/min
	▪	Brine circuit: 25 l/min

▪Field supply components – Fluid. Only use materials that are compatible with fluid used in the system and with the materials used in the indoor unit.

▪Field supply components – Fluid pressure and temperature.

Check that all components in the field piping can withstand the fluid pressure and fluid temperature.

▪Fluid pressure – Space heating and brine circuit. The maximum fluid pressure of the space heating and brine circuit is 4 bar. Provide adequate safeguards in the water circuit to ensure that the maximum pressure is NOT exceeded.

▪Fluid pressure – Domestic hot water tank. The maximum fluid pressure of the domestic hot water tank is 10 bar. Provide adequate safeguards in the water circuit to ensure that the maximum pressure is NOT exceeded.

▪Fluid temperature. All installed piping and piping accessories (valve, connections,…) MUST withstand the following temperatures:

INFORMATION

The following illustration is an example and might NOT match your system layout.

65°C
				70°C	h
			a		h
					h
	i		j
				g	FCU1	FCU2
			e	g		FCU2
			e		h	FCU3
				M	h
		f	M	M
		f	M
			c		h
b	b	d
			e		FHL1
					FHL1	FHL2
						FHL2
						FHL3

aIndoor unit

bHeat exchanger

cBackup heater

dPump

eStop valve

fMotorised 3-way valve

gMotorised 2-way valve (field supply)

hCollector

iDomestic hot water tank

jHeat exchanger coil

FCU1...3 Fan coil unit (optional)

FHL1...3 Floor heating loop

▪Drainage – Low points. Provide drain taps at all low points of the system in order to allow complete drainage of the circuit.

▪Drainage – Pressure relief valve. Provide a proper drain for the pressure relief valve to avoid fluid dripping out of the unit. See

"7.5.5 To connect the pressure relief valve to the drain" on page 27.

WARNING

▪All pipe work connected to the brine pressure relief valve MUST have a continuous fall.

▪The discharge pipe from the brine pressure relief valve

MUST terminate in a safe, visible position without forming any risk to persons in the vicinity.

▪Air vents. Provide air vents at all high points of the system, which must also be easily accessible for servicing. At the space heating side, 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.

▪Zn-coated parts. NEVER use Zn-coated parts in the fluid circuit. Because the unit's internal circuit uses copper piping, excessive corrosion may occur. Zn coated parts used in the brine circuit may lead to the precipitation of certain components in the anti-freeze fluids corrosion inhibitor.



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6 Preparation

WARNING

Due to presence of glycol, corrosion of the system is possible. Uninhibited glycol will turn acidic under the influence of oxygen. This process is accelerated by the presence of copper and high temperatures. The acidic uninhibited glycol attacks metal surfaces and forms galvanic corrosion cells that cause severe damage to the system. Therefore it is important that:

▪the water treatment is correctly executed by a qualified water specialist,

▪a glycol with corrosion inhibitors is selected to counteract acids formed by the oxidation of glycols,

▪no automotive glycol is used because their corrosion inhibitors have a limited lifetime and contain silicates which can foul or plug the system,

▪galvanized pipes are NOT used in glycol systems since the presence may lead to the precipitation of certain components in the glycol's corrosion inhibitor.

INFORMATION

Be aware of the hygroscopic property of anti-freeze fluids: it absorbs moisture from its environment. Leaving the cap off the anti-freeze fluid container causes the concentration of water to increase. The anti-freeze fluid concentration is then lower than assumed. And in consequence, freezing can happen after all.

Preventive actions MUST be taken to ensure minimal exposure of the anti-freeze fluid to air.

▪Non-brass metallic piping. When using non-brass metallic piping, insulate the brass and non-brass properly so that they do NOT make contact with each other. This to prevent galvanic corrosion.

▪Valve – Change over time. When using a 2-way valve in the space heating circuit, the maximum change-over time of the valve MUST be 60 seconds.

▪Domestic hot water tank – Capacity. To avoid stagnation of water, it is important that the storage capacity of the domestic hot water tank meets the daily consumption of domestic hot water.

▪Domestic hot water tank – After installation. Immediately after installation, the domestic hot water tank must be flushed with fresh water. This procedure must be repeated at least once a day the first 5 consecutive days after installation.

aRecirculation connection

bHot water connection

cShower

dRecirculation pump

6.3.2Formula to calculate the expansion vessel pre-pressure

The pre-pressure (Pg) of the vessel depends on the installation height difference (H):

Pg=0.3+(H/10) (bar)

6.3.3To check the water volume and flow rate of the space heating circuit and brine circuit

The indoor unit has 2 expansion vessels of 10 litre, one for the space heating circuit and one for the brine circuit.

To make sure that the unit operates properly:

▪You must check the minimum and maximum water volume.

▪You might need to adjust the pre-pressure of the expansion vessel.

▪You must check the total space heating water volume unit.

▪You must check the total brine water volume in the unit.

Minimum water volume

Check that the total water volume per circuit in the installation is minimum 20 litre, the internal water volume of the indoor unit NOT included.

INFORMATION

If a minimum heating load of 1 kW can be guaranteed and setting [9 04] is changed by the installer from 1 to 4°C, the minimum water volume can be lowered to 10 litre.

INFORMATION

In critical processes, or in rooms with a high heat load, extra water might be required.

NOTICE

When circulation in each space heating loop is controlled by remotely controlled valves, it is important that the minimum water volume is guaranteed, even if all of the valves are closed.

▪Domestic hot water tank – Standstills. In cases where during longer periods of time there is no consumption of hot water, the equipment MUST be flushed with fresh water before usage.

▪Domestic hot water tank – Disinfection. For the disinfection function of the domestic hot water tank, see "8.3.2 Domestic hot water control: advanced" on page 46.

▪Thermostatic mixing valves. In accordance with the applicable legislation, it may be necessary to install thermostatic mixing valves.

▪Hygienic measures. The installation must be in compliance with the applicable legislation and may require additional hygienic installation measures.

▪Recirculation pump. In accordance with the applicable legislation, it may be required to connect a recirculation pump in between the hot water end point and the recirculation connection of the domestic hot water tank.

a	b	c
		d

			T1	T2	T3
		e
				f
e	a	e	M1	M2	M3	g
		e
				f
				f
	c
d	d		FHL1
b	b			FHL2
					FHL3

aIndoor unit

bHeat exchanger

cBackup heater

dPump

eShut-off valve (field supply)

fCollector (field supply)

gBy-pass valve (field supply)

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6 Preparation

FHL1...3 Floor heating loop (field supply) T1...3 Individual room thermostat (optional)

M1...3 Individual motorised valve to control loop FHL1...3 (field

supply)

Maximum water volume

Use the following graphs to determine the maximum water volume for the calculated pre-pressure. For brine, this is dependent on the variation of brine temperature in the system. Example: throughout the year, the temperature of the brine can fluctuate between –7°C and 10°C, as in graph 1, or between 0°C and 10°C as in graph 2.

Graph 1: Brine temperature fluctuation is 17°C

2.5

1.5

0.5

0.3

0	200	400	600	800	1000
20					b

aPre-pressure (bar)

bMaximum water volume (l) Space heating vessel

40% propylene glycol (brine expansion vessel)

29% ethanol (brine expansion vessel)

Graph 2: Brine temperature fluctuation is 10°C

2.5

1.5

0.5

0	500	1000	1500	1750
20				b

aPre-pressure (bar)

bMaximum water volume (l) Space heating vessel

40% propylene glycol (brine expansion vessel)

29% ethanol (brine expansion vessel)

Minimum flow rate

Check that the minimum flow rate (required during defrost/backup

heater operation) in the installation is guaranteed in all conditions.

NOTICE

When circulation in each or certain space heating loops is controlled by remotely controlled valves, it is important that the minimum flow rate is guaranteed, even if all valves are closed. In case the minimum flow rate cannot be reached, a flow error 7H will be generated (no heating/operation).

Minimum required flow rate during backup heater operation

12 l/min

See the recommended procedure as described in "9.4 Checklist during commissioning" on page 55.

6.3.4Changing the pre-pressure of the expansion vessel

NOTICE

Only a licensed installer may adjust the pre-pressure of the expansion vessel.

When changing the default pre-pressure of the expansion vessel (1 bar) is required, take following guidelines into account:

▪Only use dry nitrogen to set the expansion vessel pre-pressure.

▪Inappropriate setting of the expansion vessel pre-pressure will lead to malfunction of the system.

Changing the pre-pressure of the expansion vessel should be done by releasing or increasing nitrogen pressure through the schräder valve of the expansion vessel.

aSchräder valve

6.3.5To check the water volume: Examples

Example 1

The indoor unit is installed 5 m below the highest point in the water circuit. The total water volume in the water circuit is 100 l.

No actions or adjustments are required.

Example 2

The indoor unit is installed at the highest point in the water circuit. The total water volume in the water circuit is 300 l.

Actions:

▪Because the total water volume (300 l) is more than the default water volume (280 l), the pre-pressure must be decreased.

▪The required pre-pressure is:

Pg = (0.3+(H/10)) bar = (0.3+(0/10)) bar=0.3 bar.

▪The corresponding maximum water volume at 0.3 bar is 350 l.

(See the graph in the chapter above).

▪Because 300 l is lower than 350 l, the expansion vessel is appropriate for the installation.

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6 Preparation

6.4	Preparing electrical wiring	6.4.3	Overview of electrical connections except
			external actuators
6.4.1	About preparing electrical wiring	General remark about abbreviations in this and the following
		chapters:
		chapters:

INFORMATION

▪ E1 = Refrigerant cycle components (e.g. compressor) and brine

Also read the precautions and requirements in the piping parts (e.g. brine pump) "General safety precautions" chapter.

▪ E2 = All other components except backup heater

WARNING

▪If the power supply has a missing or wrong N-phase, equipment might break down.

▪Establish proper earthing. Do NOT earth the unit to a utility pipe, surge absorber, or telephone earth.

Incomplete earthing may cause electrical shock.

▪Install the required fuses or circuit breakers.

▪Secure the electrical wiring with cable ties so that the cables do NOT come in contact with sharp edges or piping, particularly on the high-pressure side.

▪Do NOT use taped wires, stranded conductor wires, extension cords, or connections from a star system.

They can cause overheating, electrical shock or fire.

▪Do NOT install a phase advancing capacitor, because this unit is equipped with an inverter. A phase advancing capacitor will reduce performance and may cause accidents.

WARNING

▪All wiring must be performed by an authorized electrician and must comply with the applicable legislation.

▪Make electrical connections to the fixed wiring.

▪All components procured on the site and all electrical construction must comply with the applicable legislation.

WARNING

ALWAYS use multicore cable for power supply cables.

▪ E3 = Backup heater
Normal power	Preferential kWh rate power supply
supply	Power supply is		Power supply is
	NOT interrupted			interrupted
a		b		a	b
			2	3	1
1+2	1+2	3
			During preferential
	During preferential		kWh rate power
	During preferential		supply activation,
	kWh rate power		power supply is
	supply activation,		interrupted
	power supply is NOT		immediately or after
	interrupted. E1 is		some time by the
	turned off by the		electricity company.
	control.		In this case, the
	Remark: The		hydro PCB MUST be
	Remark: The		powered by a
	electricity company		powered by a
	electricity company		separate normal
	MUST always allow		separate normal
	MUST always allow		power supply.
	the power		power supply.
	the power
	consumption of E2
	and E3.

6.4.2About preferential kWh rate power supply

Electricity companies throughout the world work hard to provide reliable electric service at competitive prices and are often authorized to bill clients at benefit rates. E.g. time-of-use rates, seasonal rates, Wärmepumpentarif in Germany and Austria, ...

This equipment allows for connection to such preferential kWh rate power supply delivery systems.

Consult with the electricity company acting as provider at the site where this equipment is to be installed to know whether it is appropriate to connect the equipment in one of the preferential kWh rate power supply delivery systems available, if any.

When the equipment is connected to such preferential kWh rate power supply, the electricity company is allowed to:

▪interrupt power supply to the equipment for certain periods of time;

▪demand that the equipment only consumes a limited amount of electricity during certain periods of time.

The indoor unit is designed to receive an input signal by which the unit switches into forced off mode. At that moment, the unit compressor will not operate.

Whether the power supply is interrupted or not, the wiring to the unit is different.

aNormal power supply

bPreferential kWh rate power supply 1 Power supply for E1 and E3

2 Power supply for E2

3 Preferential kWh rate power supply (voltage free contact)

NOTICE

The setting brine freezing temperature can be modified and the read out is correct in [A.6.9] Brine freezeup temp ONLY after having accessed menu [A.8] Overview settings.

This setting can ONLY be modified and/or saved and the read out is ONLY correct if the communication between hydro module and compressor module is present. The communication between hydro module and compressor module is NOT guaranteed and/or applicable if:

▪error "U4" appears on the user interface,

▪the heat pump module is connected to preferential kWh rate power supply where power supply is interrupted and preferential kWh rate power supply is activated.

6.4.4Overview of electrical connections for external and internal actuators

The following illustration shows the required field wiring.



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7 Installation

INFORMATION

The following illustration is an example and might NOT

match your system layout.

	a
20	6
15	12
13	16
14	16	M
14
17	14
17	14
18	19
a	Indoor unit

Item	Description		Wires	Maximum
				running
				current
Indoor unit power supply
1	Power supply for E1	3+N + GND		(a)
1	Power supply for E1	3+N + GND
	and E3

2	Power supply for E2	2		(c)
2	Power supply for E2	2
4	Preferential kWh rate	2		(d)
4	Preferential kWh rate	2
	power supply (voltage
	free contact)
5	Normal kWh rate power	2		6.3 A
	supply
User interface
6	User interface	2		(e)
6	User interface	2
Optional equipment
12	Room thermostat	3 or 4		100 mA(b)
13	Outdoor ambient	2		(b)
13	Outdoor ambient	2
	temperature sensor
14	Indoor ambient	2		(b)
14	Indoor ambient	2
	temperature sensor

15	Heat pump convector	4		100 mA(b)
Field supplied components
16	Shut-off valve	2		100 mA(b)

17	Electricity meter	2	(per meter)	(b)
17	Electricity meter	2	(per meter)
18	Domestic hot water	2		(b)
18	Domestic hot water	2
	pump

19	Alarm output	2		(b)
19	Alarm output	2
20	Changeover to external	2		(b)
20	Changeover to external	2
	heat source control
22	Power consumption	2	(per input	(b)
22	Power consumption	2	(per input
	digital inputs	signal)

(a)Refer to name plate on unit.

(b)Minimum cable section 0.75 mm².

(c)Cable section 2.5 mm².

(d)Cable section 0.75 mm² till 1.25 mm²; maximum length: 50 m. Voltage-free contact shall ensure the minimum applicable load of 15 V DC, 10 mA.

(e)Cable section 0.75 mm² till 1.25 mm²; maximum length: 500 m. Applicable for both single user interface and dual use interface connection.

NOTICE

More technical specifications of the different connections

are indicated on the inside of the indoor unit.

7 Installation

7.1Overview: Installation

This chapter describes what you have to do and know on-site to install the system.

Typical workflow

Installation typically consists of the following stages:

1Mounting the indoor unit.

2Connecting the brine piping.

3Connecting the water piping.

4Connecting the electrical wiring.

5Finishing the indoor installation.

7.2Opening the units

7.2.1About opening the units

At certain times, you have to open the unit. Example:

▪When connecting the electrical wiring

▪When maintaining or servicing the unit

DANGER: RISK OF ELECTROCUTION

Do NOT leave the unit unattended when the service cover is removed.

7.2.2To open the indoor unit

1Loosen and remove the screws at the bottom of the unit.

2Push on the button at the bottom of the front plate.

WARNING: Sharp edges

Take the front plate on the upper part instead of the lower part. Watch your fingers, there are sharp edges on the lower part of the front plate.

3 Slide the front panel of the unit downwards and remove it.

CAUTION

The front panel is heavy. Be careful NOT to jam your fingers when opening or closing the unit.

4Loosen and remove the 4 screws that fix the top panel.

5Remove the top panel from the unit.



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Daikin EGSQH10S18AA9W Installer reference guide

	7 Installation
	4	4×
	5	4×
	5

2×

7.2.3To open the switch box cover of the indoor unit

7.3.2Precautions when mounting the indoor unit

INFORMATION

Also read the precautions and requirements in the following chapters:

▪General safety precautions

▪Preparation

7.3.3To install the indoor unit

1Bring the unit on the pallet as close as possible to its installation place.

2Lift the indoor unit from the pallet and place it on the floor.

4×
1	2
	210kg

3 Slide the indoor unit into position. Make sure that the side support bolts are present when handling the unit.

7×

4 Unlink the heat pump module from the outer frame. ONLY remove the side support bolts!

2×

7.3 Mounting the indoor unit

7.3.1 About mounting the indoor unit

When

You have to mount the indoor unit before you can connect the brine and water piping.

Typical workflow

Mounting the indoor unit typically consists of the following stages:

1 Installing the indoor unit.

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7 Installation

NOTICE

Do NOT throw away any bolts. They need to be re-inserted when transport or heavy manipulation is required.

5Open the front plate of the unit. If needed, the nylon bands for lifting can be used.

6Adjust the height of the 4 leveling feet of the outer frame to compensate for floor irregularities. The maximum allowed deviation is 1°.

≤1°

NOTICE

To avoid structural damage on unit, ONLY move the unit when levelling feet are at their lowest position.

NOTICE

For optimum sound reduction, carefully check if there is no gap between the bottom frame and the floor.

7Adjust the height of the 2 front leveling feet of the inner frame to compensate for irregularities.

CAUTION

Check that the heat pump module does NOT touch the outer casing.

NOTICE

Check if the front support bolts remain levelled and are

NOT stressed. The support feet from outer (b) and inner frame (c) MUST be adjusted so that those front bolts remain level. Do NOT adjust support foot (a)!

Bottom view:

Side view:

INFORMATION

To check if the front support bolts are not stressed, loosen them partly and fix them again afterwards.

7.4Connecting the brine piping

7.4.1About connecting the brine piping

Before connecting the brine piping

Make sure the indoor unit is mounted.

Typical workflow

Connecting the brine piping typically consists of the following stages:

1Connecting the brine piping.

2Filling the brine circuit.

3Connecting the pressure relief valve to the drain on the brine side.

4Insulating the brine piping.

7.4.2Precautions when connecting the brine piping

INFORMATION

Also read the precautions and requirements in the following chapters:

▪General safety precautions

▪Preparation



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7 Installation

7.4.3

To connect the brine piping

Purge as much air as possible from the brine circuit. For

instructions, see "9 Commissioning" on page 55.

Return the 3 way valve to its original position.

aBrine out

bBrine in

NOTICE

To facilitate service and maintenance, it is recommended to install shut-off valves as close as possible to the inlet and outlet of the unit.

7.4.4To fill the brine circuit

WARNING

Before, during and after filling carefully check the brine circuit for leakage.

WARNING

Temperature of the fluid running through the evaporator can become negative. It MUST be protected against freezing. Refer to setting [A 04] in "8.2.2 Quick wizard: Standard" on page 36.

INFORMATION

The materials used in the units brine circuit are chemically resistant to the following anti-freeze fluids:

▪40 mass% propylene glycol

▪29 mass% ethanol

1Connect the unit to the field supplied brine filling system.

2Position the 3 way valve correctly.

3Fill the circuit with brine until the manometer indicates a pressure of ±2.0 bar.

7.4.5To connect the pressure relief valve to the drain on the brine side

The blow out of the pressure relief valve is coming out of the backside of the unit.

WARNING

▪All pipe work connected to the brine pressure relief valve MUST have a continuous fall.

▪The discharge pipe from the brine pressure relief valve

MUST terminate in a safe, visible position without forming any risk to persons in the vicinity.

7.4.6	To insulate the brine piping
The piping in the complete brine circuit MUST be insulated to
prevent reduction of the heating capacity.
Consider that the brine circuit piping inside the house can/will
condensate. Foresee adequate insulation for these pipes.
a Brine manometer
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7.5Connecting the water piping

7.5.1About connecting the water piping

Before connecting the water piping

Make sure the indoor unit is mounted.

Typical workflow

Connecting the water piping typically consists of the following stages:

1Connecting the water piping of the indoor unit.

2Connecting the pressure relief valve to the drain.

3Filling the space heating circuit.

4Filling the domestic hot water tank.

5Insulating the water piping.

6Connecting the recirculation piping.

7Connecting the drain hose.

7.5.2Precautions when connecting the water piping

INFORMATION

Also read the precautions and requirements in the following chapters:

▪General safety precautions

▪Preparation

7.5.3To connect the water piping

NOTICE

Do NOT use excessive force when connecting the piping. Deformation of the piping can cause malfunctioning of the unit.

1Connect the domestic hot water in and out pipes to the indoor unit.

a c

d b

aSpace heating water out

bSpace heating water in

cDomestic hot water out

dDomestic cold water in (cold water supply)

NOTICE

It is recommended to install shut-off valves to cold water in and hot water out connections. Shut-off valves are field supplied.

NOTICE

To avoid damage to the surroundings in case of domestic water leakage, it is recommended to close the cold water inlet stop valves during periods of absence.

2 Connect the space heating in and out pipes to the indoor unit.

NOTICE

▪A drain device and pressure relief device should be installed on the cold water inlet connection of the domestic hot water cylinder.

▪To avoid back siphonage, it is recommended to install a non-return valve on the water inlet of the domestic hot water tank in accordance with the applicable legislation.

▪It is recommended to install a pressure reducing valve on the cold water inlet in accordance with the applicable legislation.

▪An expansion vessel should be installed on the cold water inlet in accordance with the applicable legislation.

▪It is recommended to install the pressure relief valve on a higher position than the top of the domestic hot water tank. Heating of the domestic hot water tank causes water to expand and without pressure relief valve the water pressure inside the tank can rise above the tank design pressure. Also the field installation (piping, tapping points, etc.) connected to the tank is subjected to this high pressure. To prevent this, a pressure relieve valve needs to be installed. The overpressure prevention depends on the correct operation of the field installed pressure relief valve. If this is NOT working correctly, overpressure will deform the tank and water leakage may occur. To confirm good operation, regular maintenance is required.

7.5.4To connect the recirculation piping

Prerequisite: Only required if you need recirculation in your system.

1Loosen and remove the screws at the bottom of the unit.

2Slide the front panel of the unit downwards and remove it.

3Loosen and remove the 4 screws that fix the top panel.

4Remove the top panel from the unit.

aKnock-out hole

bConnection for recirculation piping

5Remove the knock-out hole at the backside of the unit.

6Connect the recirculation piping to the recirculation connection and route the piping through the knock-out hole at the backside of the unit.

7Re-attach the insulation and casing.

7.5.5 To connect the pressure relief valve to the drain

	The blow out of the pressure relief valve is coming out of the
	backside of the unit.


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7 Installation

a Pressure relief blow-out

The blow out should be connected to an appropriate drain according to the applicable legislation. It is recommended to use a tundish.

WARNING

The discharge pipes from the pressure relief valves MUST terminate in a safe and visible position without forming any risk to persons in the vicinity.

7.5.6To connect the drain hose

Condensate can form on the brine components inside the compressor department of the unit. The unit contains a drain pan. Depending on room ambient temperature, room humidity and operation condition, the drain pan can overflow. A drain hose is supplied with the unit.

The drain hose is routed to the backside on the left, close to the bottom of the unit. A field supplied drain pump might be needed to pump the water away to the field drain.

7.5.7To fill the space heating circuit

1 Connect the water supply hose to the fill valve (field supply).

2Open the fill valve.

3Make sure that the automatic air purge valve is open (at least 2 turns).

INFORMATION

For location of the air purge valve, see "Dimensions and service space: Indoor unit" in chapter "14 Technical data" on page 66.

4Fill the circuit with water until the manometer indicates a pressure of ±2.0 bar.

a Water manometer

NOTICE

▪Air in the water circuit can cause malfunctioning of the backup heater. During filling, it may not be possible to remove all the air from the circuit. Remaining air will be removed through the automatic air purge valves during the initial operating hours of the system. Additional filling with water afterwards may be required.

▪To purge the system, use the special function as described in the chapter "9 Commissioning" on page 55. This function should be used to purge the heat exchanger coil of the domestic hot water tank.

6Close the fill valve.

7Disconnect the water supply hose from the fill valve.

NOTICE

The water pressure indicated on the manometer will vary depending on the water temperature (higher pressure at higher water temperature).

However, at all times water pressure shall remain above

1 bar to avoid air entering the circuit.

7.5.8To fill the domestic hot water tank

1Open every hot water tap in turn to purge air from the system pipe work.

2Open the cold water supply valve.

3Close all water taps after all air is purged.

4Check for water leaks.

5Manually operate the field-installed pressure relief valve to ensure a free water flow through the discharge pipe.

7.5.9To insulate the water piping

The piping in the complete water circuit MUST be insulated to prevent reduction of the heating capacity.

7.6Connecting the electrical wiring

7.6.1About connecting the electrical wiring

Before connecting the electrical wiring

Make sure the brine and water piping are connected.

Typical workflow

Connecting the electrical wiring typically consists of the following stages:

1Making sure the power supply system complies with the electrical specifications of the heat pump.

2Connecting the electrical wiring to the indoor unit.

3Connecting the main power supply.

4Connecting the remote outdoor sensor.

5Connecting the user interface.

6Connecting the shut–off valves.

7Connecting the electrical meters.

8Connecting the domestic hot water pump.

9Connecting the alarm output.

10Connecting the space heating ON/OFF output.

11Connecting the changeover to an external heat source.

12Connecting the power consumption digital inputs.

5 Purge as much air as possible from the water circuit.

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7.6.2About electrical compliance

Equipment complying with EN/IEC 61000 3 12 (European/ International Technical Standard setting the limits for harmonic currents produced by equipment connected to public low-voltage systems with input current >16 A and ≤75 A per phase.).

7.6.3Precautions when connecting the electrical wiring

INFORMATION

Also read the precautions and requirements in the following chapters:

▪General safety precautions

▪Preparation

DANGER: RISK OF ELECTROCUTION

INFORMATION

More information about the legend and the location of the wiring diagram of the unit can be found in the "Technical data" chapter.

WARNING

ALWAYS use multicore cable for power supply cables.

Tightening torques

Item	Tightening torque (N•m)
X1M	2.2~2.7

X2M	0.8~0.9
X5M

7.6.5To connect the electrical wiring on the indoor unit

INFORMATION

Foresee additional cable length of 35 cm for all wires which should be connected to X2M and X5M on sheet metal support above the hydro PCB. Additional wire length should be tie wrapped at the back side of the unit. Reason is to guarantee serviceability of, for example, the hydro PCB.

1To open the indoor unit, see "7.2.2 To open the indoor unit" on page 23 and "7.2.3 To open the switch box cover of the indoor unit" on page 24.

2Wiring should enter the unit from the top:

7.6.4Guidelines when connecting the electrical wiring

Keep the following in mind:

▪If stranded conductor wires are being used, install a round crimpstyle terminal on the tip. Place the round crimp-style terminal on the wire up to the covered part and fasten the terminal with the appropriate tool.

3 Routing of the wiring inside the unit should be as follows:

a c b

b a

a Stranded conductor wire b Round crimp-style terminal

▪ Use the following methods for installing wires:

Wire type	Installation method
Single core wire	c b
A	A´	c	AA´	1×
A	A´			1×
				1×
	a		a
a Curled single core wire
b Screw
c Flat washer
Stranded conductor	c b	a	b c
wire with round	B
crimp-style terminal	B
crimp-style terminal	a
	a

aTerminal

bScrew

cFlat washer



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+ 67 hidden pages

Daikin EGSQH10S18AA9W Installer reference guide

Table of contents

1 General safety precautions

1.1About the documentation

1.1.1Meaning of warnings and symbols

For the installer

General

1.2.2Installation site

1.2.3Refrigerant

1.2.4Brine

1.2.5Water

1.2.6Electrical

2 About the documentation

2.1About this document

2.2Installer reference guide at a glance

3 About the box

3.1Overview: About the box

4 About the units and options

3.2Indoor unit

3.2.1To unpack the indoor unit

3.2.2To remove the accessories from the indoor unit

4.1Overview: About the units and options

4.2Identification

4.2.1Identification label: Indoor unit

4.3Possible options for the indoor unit

5 Application guidelines

5.1Overview: Application guidelines

5.2Setting up the space heating system

5.2.1Single room

Under floor heating or radiators – Wired room thermostat

Heat pump convectors

5.2.2Multiple rooms – One LWT zone

Under floor heating or radiators – Thermostatic valves

Under floor heating or radiators – Multiple external room thermostats

Heat pump convectors

5.2.3Multiple rooms – Two LWT zones

5.3Setting up an auxiliary heat source for space heating

5.4Setting up the domestic hot water tank

5.4.1System layout – Integrated DHW tank

5.4.2Selecting the desired temperature for the DHW tank

5.4.3Setup and configuration – DHW tank

5.4.4DHW pump for instant hot water

5.4.5DHW pump for disinfection

5.5Setting up the energy metering

▪Produced heat

▪Consumed energy

5.5.3Normal kWh rate power supply

5.5.4Preferential kWh rate power supply

5.6Setting up the power consumption control

5.6.1Permanent power limitation

5.6.2Power limitation activated by digital inputs

5.6.3Power limitation process

6 Preparation

6.2Preparing installation site

6.2.1Installation site requirements of the indoor unit

5.7Setting up an external temperature sensor

6.1Overview: Preparation

6.3Preparing piping

6.3.1Circuit requirements

6.3.3To check the water volume and flow rate of the space heating circuit and brine circuit

6.3.5To check the water volume: Examples

Preparing electrical wiring

About preparing electrical wiring

6.4.2About preferential kWh rate power supply

6.4.4Overview of electrical connections for external and internal actuators

7 Installation

7.1Overview: Installation

7.2Opening the units

7.2.1About opening the units

7.2.2To open the indoor unit

7.2.3To open the switch box cover of the indoor unit

7.3.2Precautions when mounting the indoor unit

7.3.3To install the indoor unit

7.3 Mounting the indoor unit

7.3.1 About mounting the indoor unit

7.4Connecting the brine piping

7.4.1About connecting the brine piping

7.4.2Precautions when connecting the brine piping

To connect the brine piping

7.4.4To fill the brine circuit