Daikin ERLA03DAV3, EHFZ03S18DJ3V Installer reference guide

Installer reference guide

Daikin Altherma 3 R F

ERLA03DAV3

EHFZ03S18DJ3V

Table of contents

Table of contents

1 General safety precautions			6
1.1	About the documentation ..............................................................................................................................................		6
	1.1.1	Meaning of warnings and symbols ................................................................................................................	6
1.2	For the installer...............................................................................................................................................................		7
	1.2.1	General ...........................................................................................................................................................	7
	1.2.2	Installation site ...............................................................................................................................................	8
	1.2.3	Refrigerant — in case of R410A or R32..........................................................................................................	9
	1.2.4	Water ..............................................................................................................................................................	10
	1.2.5	Electrical .........................................................................................................................................................	11

2	About the documentation			13
	2.1	About this document ......................................................................................................................................................		13
	2.2	Installer reference guide at a glance ..............................................................................................................................		14
3	About the box			16
	3.1	Overview: About the box ................................................................................................................................................		16
	3.2	Outdoor unit ...................................................................................................................................................................		16
		3.2.1	To unpack the outdoor unit ...........................................................................................................................	16
		3.2.2	To handle the outdoor unit............................................................................................................................	17
		3.2.3	To remove the accessories from the outdoor unit........................................................................................	17
	3.3	Indoor unit ......................................................................................................................................................................		17
		3.3.1	To unpack the indoor unit..............................................................................................................................	17
		3.3.2	To remove the accessories from the indoor unit ..........................................................................................	18
		3.3.3	To handle the indoor unit...............................................................................................................................	18
4 About the units and options				19
	4.1	Overview: About the units and options..........................................................................................................................		19
	4.2	Identification ...................................................................................................................................................................		19
		4.2.1	Identification label: Outdoor unit ..................................................................................................................	19
		4.2.2	Identification label: Indoor unit .....................................................................................................................	20
	4.3	Combining units and options..........................................................................................................................................		20
		4.3.1	Possible combinations of indoor unit and outdoor unit................................................................................	20
		4.3.2	Possible options for the outdoor unit............................................................................................................	20
		4.3.3	Possible options for the indoor unit...............................................................................................................	21
5	Application guidelines			23
	5.1	Overview: Application guidelines ...................................................................................................................................		23
	5.2	Setting up the space heating system..............................................................................................................................		23
		5.2.1	Multiple rooms – Two LWT zones..................................................................................................................	24
	5.3	Setting up the domestic hot water tank.........................................................................................................................		26
		5.3.1	System layout – Integrated DHW tank...........................................................................................................	26
		5.3.2	Selecting the desired temperature for the DHW tank ..................................................................................	26
		5.3.3	Setup and configuration – DHW tank ............................................................................................................	27
		5.3.4	DHW pump for instant hot water ..................................................................................................................	28
		5.3.5	DHW pump for disinfection ...........................................................................................................................	28
	5.4	Setting up the energy metering......................................................................................................................................		29
		5.4.1	Produced heat ................................................................................................................................................	29
		5.4.2	Consumed energy...........................................................................................................................................	29
		5.4.3	Normal kWh rate power supply .....................................................................................................................	30
		5.4.4	Preferential kWh rate power supply..............................................................................................................	31
	5.5	Setting up the power consumption control ...................................................................................................................		32
		5.5.1	Permanent power limitation ..........................................................................................................................	32
		5.5.2	Power limitation activated by digital inputs ..................................................................................................	33
		5.5.3	Power limitation process................................................................................................................................	34
	5.6	Setting up an external temperature sensor ...................................................................................................................		34
6	Unit installation			36
	6.1	Preparing the installation site.........................................................................................................................................		36
		6.1.1	Installation site requirements of the outdoor unit........................................................................................	37
		6.1.2	Additional installation site requirements of the outdoor unit in cold climates............................................	39
		6.1.3	Installation site requirements of the indoor unit ..........................................................................................	40
	6.2	Opening and closing the units ........................................................................................................................................		42
		6.2.1	About opening the units.................................................................................................................................	42
		6.2.2	To open the outdoor unit...............................................................................................................................	42
		6.2.3	To close the outdoor unit...............................................................................................................................	42
		6.2.4	To open the indoor unit .................................................................................................................................	43
Installer reference guide				ERLA03DAV3 + EHFZ03S18DJ3V
2				Daikin Altherma 3 R F
				4P596821-1A – 2020.05

				Table of contents
		6.2.5	To lower the switch box on the indoor unit ..................................................................................................	45
		6.2.6	To close the indoor unit .................................................................................................................................	45
	6.3	Mounting the outdoor unit.............................................................................................................................................		46
		6.3.1	About mounting the outdoor unit .................................................................................................................	46
		6.3.2	Precautions when mounting the outdoor unit..............................................................................................	46
		6.3.3	To provide the installation structure .............................................................................................................	46
		6.3.4	To install the outdoor unit .............................................................................................................................	47
		6.3.5	To provide drainage........................................................................................................................................	47
		6.3.6	To prevent the outdoor unit from falling over ..............................................................................................	48
	6.4	Mounting the indoor unit ...............................................................................................................................................		49
		6.4.1	About mounting the indoor unit....................................................................................................................	49
		6.4.2	Precautions when mounting the indoor unit.................................................................................................	49
		6.4.3	To install the indoor unit ................................................................................................................................	49
		6.4.4	To connect the drain hose to the drain .........................................................................................................	50
	6.5	Finishing the outdoor unit installation ...........................................................................................................................		51
		6.5.1	To finish the outdoor unit installation ...........................................................................................................	51
7	Piping installation			52
	7.1	Preparing refrigerant piping ...........................................................................................................................................		52
		7.1.1	Refrigerant piping requirements....................................................................................................................	52
		7.1.2	Refrigerant piping insulation..........................................................................................................................	53
	7.2	Preparing water piping ...................................................................................................................................................		53
		7.2.1	Water circuit requirements............................................................................................................................	53
		7.2.2	Formula to calculate the expansion vessel pre-pressure ..............................................................................	56
		7.2.3	To check the water volume and flow rate .....................................................................................................	56
		7.2.4	Changing the pre-pressure of the expansion vessel......................................................................................	58
		7.2.5	To check the water volume: Examples ..........................................................................................................	58
	7.3	Connecting the refrigerant piping ..................................................................................................................................		59
		7.3.1	About connecting the refrigerant piping .......................................................................................................	59
		7.3.2	Precautions when connecting the refrigerant piping....................................................................................	59
		7.3.3	Guidelines when connecting the refrigerant piping......................................................................................	60
		7.3.4	Pipe bending guidelines .................................................................................................................................	61
		7.3.5	To flare the pipe end ......................................................................................................................................	61
		7.3.6	To braze the pipe end.....................................................................................................................................	62
		7.3.7	Using the stop valve and service port............................................................................................................	62
		7.3.8	To connect the refrigerant piping to the outdoor unit .................................................................................	64
		7.3.9	To connect the refrigerant piping to the indoor unit ....................................................................................	64
	7.4	Checking the refrigerant piping......................................................................................................................................		65
		7.4.1	About checking the refrigerant piping ...........................................................................................................	65
		7.4.2	Precautions when checking the refrigerant piping........................................................................................	65
		7.4.3	To check for leaks ...........................................................................................................................................	65
		7.4.4	To perform vacuum drying.............................................................................................................................	66
	7.5	Charging refrigerant........................................................................................................................................................		67
		7.5.1	About charging refrigerant.............................................................................................................................	67
		7.5.2	About the refrigerant .....................................................................................................................................	67
		7.5.3	Precautions when charging refrigerant .........................................................................................................	68
		7.5.4	To determine the complete recharge amount ..............................................................................................	68
		7.5.5	To fix the fluorinated greenhouse gases label...............................................................................................	68
	7.6	Connecting water piping.................................................................................................................................................		69
		7.6.1	About connecting the water piping ...............................................................................................................	69
		7.6.2	Precautions when connecting the water piping............................................................................................	69
		7.6.3	To connect the water piping ..........................................................................................................................	70
		7.6.4	To connect the recirculation piping ...............................................................................................................	71
		7.6.5	To fill the water circuit ...................................................................................................................................	72
		7.6.6	To fill the domestic hot water tank................................................................................................................	72
		7.6.7	To insulate the water piping ..........................................................................................................................	72
8	Electrical installation			73
	8.1	About connecting the electrical wiring ..........................................................................................................................		73
		8.1.1	Precautions when connecting the electrical wiring.......................................................................................	73
		8.1.2	Guidelines when connecting the electrical wiring.........................................................................................	74
		8.1.3	Specifications of standard wiring components..............................................................................................	75
		8.1.4	About electrical compliance...........................................................................................................................	76
		8.1.5	About preferential kWh rate power supply...................................................................................................	76
		8.1.6	Overview of electrical connections except external actuators .....................................................................	77
	8.2	Connections to the outdoor unit....................................................................................................................................		77
		8.2.1	To connect the electrical wiring to the outdoor unit ....................................................................................	77
	8.3	Connections to the indoor unit ......................................................................................................................................		78
		8.3.1	To connect the main power supply................................................................................................................	80
		8.3.2	To connect the backup heater power supply ................................................................................................	82
ERLA03DAV3 + EHFZ03S18DJ3V				Installer reference guide
Daikin Altherma 3 R F				3
4P596821-1A – 2020.05

Table of contents

	8.3.3	To connect the user interface ........................................................................................................................	84
	8.3.4	To connect the shut-off valve ........................................................................................................................	85
	8.3.5	To connect the electricity meters ..................................................................................................................	86
	8.3.6	To connect the domestic hot water pump ....................................................................................................	87
	8.3.7	To connect the alarm output .........................................................................................................................	88
	8.3.8	To connect the space heating ON/OFF output..............................................................................................	89
	8.3.9	To connect the changeover to external heat source.....................................................................................	90
	8.3.10	To connect the power consumption digital inputs........................................................................................	91
	8.3.11	To connect the safety thermostat (normally closed contact) .......................................................................	92
8.4	After connecting the electrical wiring to the indoor unit ..............................................................................................		94

9 Configuration			96
9.1	Overview: Configuration.................................................................................................................................................		96
	9.1.1	To change the user permission level .............................................................................................................	97
	9.1.2	To access the most used commands .............................................................................................................	97
	9.1.3	To copy the system settings from the first to the second user interface .....................................................	99
	9.1.4	Quick wizard: Set the system layout after first power ON ............................................................................	100
9.2	Basic configuration..........................................................................................................................................................		101
	9.2.1	Quick wizard: Language / time and date .......................................................................................................	101
	9.2.2	Quick wizard: Standard ..................................................................................................................................	101
	9.2.3	Quick wizard: Options ....................................................................................................................................	104
	9.2.4	Space heating/cooling control .......................................................................................................................	108
	9.2.5	Domestic hot water control ...........................................................................................................................	111
	9.2.6	Contact/helpdesk number .............................................................................................................................	111
9.3	Weather-dependent curve .............................................................................................................................................		112
	9.3.1	What is a weather-dependent curve? ...........................................................................................................	112
	9.3.2	2-points curve.................................................................................................................................................	112
	9.3.3	Using weather-dependent curves..................................................................................................................	113
9.4	Advanced configuration/optimisation............................................................................................................................		114
	9.4.1	Space heating/cooling operation: advanced .................................................................................................	114
	9.4.2	Domestic hot water control: advanced .........................................................................................................	121
	9.4.3	Heat source settings.......................................................................................................................................	126
	9.4.4	System settings...............................................................................................................................................	129
9.5	Menu structure: Overview user settings........................................................................................................................		137
9.6	Menu structure: Overview installer settings..................................................................................................................		138

10 Commissioning			139
10.1	Overview: Commissioning ..............................................................................................................................................		139
10.2	Precautions when commissioning..................................................................................................................................		139
10.3	Checklist before commissioning.....................................................................................................................................		140
10.4	Checklist during commissioning .....................................................................................................................................		141
	10.4.1 To check the minimum flow rate ...................................................................................................................		141
	10.4.2 Air purge function...........................................................................................................................................		141
	10.4.3 To perform a test run .....................................................................................................................................		143
	10.4.4 To perform an actuator test run ....................................................................................................................		143
	10.4.5 Underfloor heating screed dryout .................................................................................................................		144
11 Hand-over to the user			147
12 Maintenance and service			148
12.1	Overview: Maintenance and service ..............................................................................................................................		148
12.2	Maintenance safety precautions....................................................................................................................................		148
12.3	Checklist for yearly maintenance of the outdoor unit...................................................................................................		149
12.4	Checklist for yearly maintenance of the indoor unit .....................................................................................................		149
	12.4.1 To drain the domestic hot water tank ...........................................................................................................		152
12.5	About cleaning the water filter in case of trouble .........................................................................................................		152
	12.5.1 To remove the water filter .............................................................................................................................		152
	12.5.2 To clean the water filter in case of trouble....................................................................................................		153
	12.5.3 To install the water filter ................................................................................................................................		154
13 Troubleshooting			156
13.1	Overview: Troubleshooting ............................................................................................................................................		156
13.2	Precautions when troubleshooting ................................................................................................................................		156
13.3	Solving problems based on symptoms...........................................................................................................................		157
	13.3.1 Symptom: The compressor does NOT start (space heating or domestic water heating)		............................ 157
	13.3.2 Symptom: The system is making gurgling noises after commissioning ........................................................		157
	13.3.3 Symptom: The pump is blocked.....................................................................................................................		158
	13.3.4 Symptom: The pump is making noise (cavitation).........................................................................................		158
	13.3.5 Symptom: The pressure relief valve opens....................................................................................................		159
	13.3.6 Symptom: The water pressure relief valve leaks...........................................................................................		159
	13.3.7 Symptom: The space is NOT sufficiently heated at low outdoor temperatures...........................................		160
Installer reference guide		ERLA03DAV3 + EHFZ03S18DJ3V
4			Daikin Altherma 3 R F
		4P596821-1A – 2020.05

Table of contents

		13.3.8 Symptom: The pressure at the tapping point is temporarily unusually high................................................	161
		13.3.9 Symptom: Decoration panels are pushed away due to a swollen tank ........................................................	161
		13.3.10 Symptom: Tank disinfection function is NOT completed correctly (AH-error).............................................	161
	13.4	Solving problems based on error codes .........................................................................................................................	161
		13.4.1 Error codes: Overview ....................................................................................................................................	162
14	Disposal		169
	14.1	Overview: Disposal..........................................................................................................................................................	169
	14.2	To pump down ................................................................................................................................................................	169
15	Technical data		171
	15.1	Piping diagram: Outdoor unit .........................................................................................................................................	171
	15.2	Piping diagram: Indoor unit ............................................................................................................................................	172
	15.3	Wiring diagram: Outdoor unit ........................................................................................................................................	173
	15.4	Wiring diagram: Indoor unit ...........................................................................................................................................	175
16	Glossary		181
17	Field settings table		183

ERLA03DAV3 + EHFZ03S18DJ3V	Installer reference guide
Daikin Altherma 3 R F	5
4P596821-1A – 2020.05

1 | General safety precautions

1 General safety precautions

In this chapter

1.1	About the documentation......................................................................................................................................................		6
	1.1.1	Meaning of warnings and symbols ........................................................................................................................	6
1.2	For the installer.......................................................................................................................................................................		7
	1.2.1	General ...................................................................................................................................................................	7
	1.2.2	Installation site .......................................................................................................................................................	8
	1.2.3	Refrigerant — in case of R410A or R32 .................................................................................................................	9
	1.2.4	Water......................................................................................................................................................................	10
	1.2.5	Electrical .................................................................................................................................................................	11

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 in the installer reference guide MUST be performed by an authorised installer.

1.1.1 Meaning of warnings and symbols

DANGER

Indicates a situation that results in death or serious injury.

DANGER: RISK OF ELECTROCUTION

Indicates a situation that could result in electrocution.

DANGER: RISK OF BURNING/SCALDING

Indicates a situation that could result in burning/scalding because of extreme hot or cold temperatures.

DANGER: RISK OF EXPLOSION

Indicates a situation that could result in explosion.

WARNING

Indicates a situation that could result in death or serious injury.

WARNING: FLAMMABLE MATERIAL

CAUTION

Indicates a situation that could result in minor or moderate injury.

Installer reference guide	ERLA03DAV3 + EHFZ03S18DJ3V
6	Daikin Altherma 3 R F
	4P596821-1A – 2020.05

1 | General safety precautions

NOTICE

Indicates a situation that could result in equipment or property damage.

INFORMATION

Indicates useful tips or additional information.

Symbols used on the unit:

Symbol

Explanation

Before installation, read the installation and operation manual, and the wiring instruction sheet.

Before performing maintenance and service tasks, read the service manual.

For more information, see the installer and user reference guide.

The unit contains rotating parts. Be careful when servicing or inspecting the unit.

Symbols used in the documentation:

Symbol

Explanation

Indicates a figure title or a reference to it.

Example: " 1–3 Figure title" means "Figure 3 in chapter 1".

Indicates a table title or a reference to it.

Example: " 1–3 Table title" means "Table 3 in chapter 1".

1.2 For the installer

1.2.1 General

If you are NOT sure how to install or operate the unit, contact your dealer.

DANGER: RISK OF BURNING/SCALDING

▪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

Improper installation or attachment of equipment or accessories could result in electrical 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).

ERLA03DAV3 + EHFZ03S18DJ3V	Installer reference guide
Daikin Altherma 3 R F	7
4P596821-1A – 2020.05

1 | General safety precautions

CAUTION

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

WARNING

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

WARNING

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

CAUTION

Do NOT touch the air inlet or aluminium fins of the unit.

CAUTION

▪ Do NOT place any objects or equipment on top of the unit.

▪ Do NOT sit, climb or stand on the unit.

NOTICE

Works executed on the outdoor unit are best done under dry weather conditions to avoid water ingress.

In accordance with the applicable legislation, it might be necessary to provide a logbook with the product containing at least: information on maintenance, repair work, results of tests, stand-by periods,…

Also, at least, following information MUST be provided at an accessible place at the product:

▪Instructions for shutting down the system in case of an emergency

▪Name and address of fire department, police and hospital

▪Name, address and day and night telephone numbers for obtaining service In Europe, EN378 provides the necessary guidance for this logbook.

1.2.2Installation site

▪Provide sufficient space around the unit for servicing and air circulation.

▪Make sure the installation site withstands the weight and vibration of the unit.

▪Make sure the area is well ventilated. Do NOT block any ventilation openings.

▪Make sure the unit is level.

Do NOT install the unit in the following places:

▪In potentially explosive atmospheres.

▪In places where there is machinery that emits electromagnetic waves. Electromagnetic waves may disturb the control system, and cause malfunction of the equipment.

▪In places where there is a risk of fire due to the leakage of flammable gases (example: thinner or gasoline), carbon fibre, ignitable dust.

Installer reference guide	ERLA03DAV3 + EHFZ03S18DJ3V
8	Daikin Altherma 3 R F
	4P596821-1A – 2020.05

1 | General safety precautions

▪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 — in case of R410A or R32

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 might be produced if refrigerant gas comes into contact with fire.

DANGER: RISK OF EXPLOSION

Pump down – Refrigerant leakage. If you want to pump down the system, and there is a leak in the refrigerant circuit:

▪Do NOT use the unit's automatic pump down function, with which you can collect all refrigerant from the system into the outdoor unit. Possible consequence: Selfcombustion and explosion of the compressor because of air going into the operating compressor.

▪Use a separate recovery system so that the unit's compressor does NOT have to operate.

WARNING

ALWAYS recover the refrigerant. Do NOT release them directly into the environment.

Use a vacuum pump to evacuate the installation.

NOTICE

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

NOTICE

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

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

ERLA03DAV3 + EHFZ03S18DJ3V	Installer reference guide
Daikin Altherma 3 R F	9
4P596821-1A – 2020.05

1 | General safety precautions

WARNING

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

Possible consequence: Self-combustion and explosion of the compressor because of oxygen going into the operating compressor.

▪In case recharge is required, see the nameplate of the unit. It states the type of refrigerant and necessary amount.

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

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

▪Charge the liquid refrigerant as follows:

If	Then
A siphon tube is present	Charge with the cylinder upright.
(i.e., the cylinder is marked with "Liquid
filling siphon attached")
A siphon tube is NOT present	Charge with the cylinder upside down.

▪Open refrigerant cylinders slowly.

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

CAUTION

When the refrigerant charging procedure is done or when pausing, close the valve of the refrigerant tank immediately. If the valve is NOT closed immediately, remaining pressure might charge additional refrigerant. Possible consequence: Incorrect refrigerant amount.

1.2.4 Water

If applicable. See the installation manual or installer reference guide of your

application for more information.

NOTICE

Make sure water quality complies with EU directive 98/83 EC.

Installer reference guide	ERLA03DAV3 + EHFZ03S18DJ3V
10	Daikin Altherma 3 R F
	4P596821-1A – 2020.05

1 | General safety precautions

1.2.5 Electrical

DANGER: RISK OF ELECTROCUTION

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

▪Disconnect the power supply for more than 10 minutes, and measure the voltage at the terminals of main circuit capacitors or electrical components before servicing. The voltage MUST be less than 50 V DC before you can touch electrical components. For the location of the terminals, see the wiring diagram.

▪Do NOT touch electrical components with wet hands.

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

WARNING

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

WARNING

▪ ONLY use copper wires.

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

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

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

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

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

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

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

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

CAUTION

▪ When connecting the power supply: connect the earth cable first, before making the current-carrying connections.

▪When disconnecting the power supply: disconnect the current-carrying cables first, before separating the earth connection.

▪The length of the conductors between the power supply stress relief and the terminal block itself must be as such that the current-carrying wires are tautened before the earth wire is in case the power supply is pulled loose from the stress relief.

ERLA03DAV3 + EHFZ03S18DJ3V	Installer reference guide
Daikin Altherma 3 R F	11
4P596821-1A – 2020.05

1 | General safety precautions

NOTICE

Precautions when laying power wiring:

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

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

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

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

▪Over-tightening the terminal screws may break them.

Install power cables at least 1 m away from televisions or radios to prevent interference. Depending on the radio waves, a distance of 1 m 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.

Installer reference guide	ERLA03DAV3 + EHFZ03S18DJ3V
12	Daikin Altherma 3 R F
	4P596821-1A – 2020.05

2 | About the documentation

2 About the documentation

In this chapter

2.1	About this document..............................................................................................................................................................	13
2.2	Installer reference guide at a glance......................................................................................................................................	14

2.1 About this document

Target audience

Authorised installers

Documentation set

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

▪General safety precautions:

-Safety instructions that you must read before installing

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

▪Operation manual:

-Quick guide for basic usage

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

▪User reference guide:

-Detailed step-by-step instructions and background information for basic and advanced usage

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

▪Installation manual – Outdoor unit:

-Installation instructions

-Format: Paper (in the box of the outdoor unit)

▪Installation manual – Indoor unit:

-Installation instructions

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

▪Installer reference guide:

-Preparation of the installation, good practices, reference data, …

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

▪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.

ERLA03DAV3 + EHFZ03S18DJ3V	Installer reference guide
Daikin Altherma 3 R F	13
4P596821-1A – 2020.05

2 | About the documentation

Technical engineering data

▪A subset of the latest technical data is available on the regional Daikin website (publicly accessible).

▪The full set of latest technical data is available on the Daikin Business Portal (authentication required).

Online tools

In addition to the documentation set, some online tools are available for installers:

▪Heating Solutions Navigator

-Digital toolbox that offers a variety of tools to facilitate the installation and configuration of heating systems.

-To access Heating Solutions Navigator, registration to the Stand By Me platform is required. For more information, see https:// professional.standbyme.daikin.eu.

▪Daikin e-Care

-Mobile app for installers and service technicians that allows you to register, configure and troubleshoot heating systems.

-The mobile app can be downloaded for iOS and Android devices using the QR codes below. Registration to the Stand By Me platform is required to access the app.

App Store

Google Play

2.2 Installer reference guide at a glance

Chapter		Description
General safety precautions	Safety instructions that you must read before
	installing
About the documentation	What documentation exists for the installer
About the box	How to unpack the units and remove their
	accessories
About the units and options	▪	How to identify the units
	▪	Possible combinations of units and options
Application guidelines	Various installation setups of the system
Unit installation	What to do and know to install the system,
	including information on how to prepare for an
	installation
Piping installation	What to do and know to install the piping of the
	system, including information on how to
	prepare for an installation

Installer reference guide	ERLA03DAV3 + EHFZ03S18DJ3V
14	Daikin Altherma 3 R F
	4P596821-1A – 2020.05

		2 | About the documentation
	Chapter	Description
	Electrical installation	What to do and know to install the electrical
		components of the system, including
		information on how to prepare for an
		installation
	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.

ERLA03DAV3 + EHFZ03S18DJ3V	Installer reference guide
Daikin Altherma 3 R F	15
4P596821-1A – 2020.05

3 | About the box

3 About the box

In this chapter

3.1	Overview: About the box........................................................................................................................................................		16
3.2	Outdoor unit ...........................................................................................................................................................................		16
	3.2.1	To unpack the outdoor unit ...................................................................................................................................	16
	3.2.2	To handle the outdoor unit....................................................................................................................................	17
	3.2.3	To remove the accessories from the outdoor unit ...............................................................................................	17
3.3	Indoor unit ..............................................................................................................................................................................		17
	3.3.1	To unpack the indoor unit......................................................................................................................................	17
	3.3.2	To remove the accessories from the indoor unit ..................................................................................................	18
	3.3.3	To handle the indoor unit ......................................................................................................................................	18

3.1 Overview: About the box

This chapter describes what you have to do after the boxes with the outdoor and indoor unit are delivered on-site.

Keep the following in mind:

▪At delivery, the unit MUST be checked for damage. Any damage MUST be reported immediately to the claims agent of the carrier.

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

▪When handling the unit, take into account the following:

Fragile, handle the unit with care.

Keep the unit upright in order to avoid damage.

▪Prepare the path along which you want to bring the unit inside in advance.

3.2Outdoor unit

3.2.1 To unpack the outdoor unit

2

1

3

Installer reference guide	ERLA03DAV3 + EHFZ03S18DJ3V
16	Daikin Altherma 3 R F
	4P596821-1A – 2020.05

3 | About the box

3.2.2 To handle the outdoor unit

CAUTION

To avoid injury, do NOT touch the air inlet or aluminium fins of the unit.

3.2.3 To remove the accessories from the outdoor unit

a

b

c

d

e

aOutdoor unit installation manual

bMultilingual fluorinated greenhouse gases label

cDrain plug (located on the bottom of the packing case)

dEnergy label

eFluorinated greenhouse gases label

3.3 Indoor unit

3.3.1 To unpack the indoor unit

ERLA03DAV3 + EHFZ03S18DJ3V	Installer reference guide
Daikin Altherma 3 R F	17
4P596821-1A – 2020.05

3 | About the box

1				2

8×

3.3.2 To remove the accessories from the indoor unit

a

b

c

d

e

f

g

1×

1×

1×

1×

6×

4×

1×

h

1×

aGeneral safety precautions

bAddendum book for optional equipment

cIndoor unit installation manual

dOperation manual

eSealing rings for field-supplied shut-off valves (space heating water circuit)

fSealing rings for field-supplied shut-off valves (domestic hot water circuit)

gSealing tape for low voltage wiring intake

hRemote user interface

3.3.3To handle the indoor unit

Use the handles at the back and at the bottom to carry the unit.

a	a
b	b

aHandles at the back of the unit

bHandles at the bottom of the unit. Carefully tilt the unit to the back so that the handles become visible.

Installer reference guide	ERLA03DAV3 + EHFZ03S18DJ3V
18	Daikin Altherma 3 R F
	4P596821-1A – 2020.05

4 | About the units and options

4 About the units and options

In this chapter

4.1	Overview: About the units and options .................................................................................................................................		19
4.2	Identification...........................................................................................................................................................................		19
	4.2.1	Identification label: Outdoor unit ..........................................................................................................................	19
	4.2.2	Identification label: Indoor unit .............................................................................................................................	20
4.3	Combining units and options..................................................................................................................................................		20
	4.3.1	Possible combinations of indoor unit and outdoor unit .......................................................................................	20
	4.3.2	Possible options for the outdoor unit....................................................................................................................	20
	4.3.3	Possible options for the indoor unit ......................................................................................................................	21

4.1 Overview: About the units and options

This chapter contains information about:

▪Identifying the outdoor unit

▪Identifying the indoor unit

▪Combining the outdoor unit with options

▪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.

4.2.1 Identification label: Outdoor unit

Location

Model identification

Example: ER L A 03 DA V3

	Code	Explanation
	ER	European split outdoor pair heat pump
	L	Low water temperature – ambient zone: −10~−20°C
	A	Refrigerant R32
	03	Capacity class
	DA	Model series
	V3	Power supply
ERLA03DAV3 + EHFZ03S18DJ3V		Installer reference guide
Daikin Altherma 3 R F		19
4P596821-1A – 2020.05

4 | About the units and options

4.2.2 Identification label: Indoor unit

Location

Model identification

Example: E HF Z 03 S 18 DJ 3V

Code	Description
E	European model
HF	Floor-standing indoor unit with integrated tank
Z	Dual-zone model
03	Capacity class
S	Integrated tank material: Stainless steel
18	Integrated tank volume
DJ	Model series
3V	Backup heater model

4.3 Combining units and options

INFORMATION

Certain options might not be available in your country.

4.3.1 Possible combinations of indoor unit and outdoor unit

Outdoor unit	Indoor unit
	EHFZ03S18DJ3V
ERLA03DAV3	O

4.3.2 Possible options for the outdoor unit

Bottom plate heater (EKBPHT03D)

▪Prevents freeze-up of the bottom plate.

▪Recommended in areas with low ambient temperature and high humidity.

▪Required in areas with ambient temperatures between –7°C and –15°C when the

outdoor unit is installed between 1000 m and 2000 m altitude. See "6.1.2 Additional installation site requirements of the outdoor unit in cold climates" [439] for more information.

▪For installation instructions, see the installation manual of the bottom plate heater.

Installer reference guide	ERLA03DAV3 + EHFZ03S18DJ3V
20	Daikin Altherma 3 R F
	4P596821-1A – 2020.05

4 | About the units and options

4.3.3 Possible options for the indoor unit

User interface used as room thermostat (BRC1HHDA)

▪The user interface used as room thermostat can only be used in combination with the user interface connected to the indoor unit.

▪The user interface used as room thermostat needs to be installed in the room that you want to control.

For installation instructions, see the installation and operation manual of the user interface used as room thermostat.

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 instructions, see the installation manual of the room thermostat and addendum book for optional equipment.

Digital I/O PCB (EKRP1HBAA)

The digital I/O PCB is required to provide following signals:

▪Alarm output

▪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.

Demand PCB (EKRP1AHTA)

To enable the power saving consumption control by digital inputs you must install the demand PCB.

For installation instructions, see the installation manual of the demand PCB and addendum book for optional equipment.

Remote indoor sensor (KRCS01-1)

By default the internal user interface sensor will be used as room temperature sensor.

As an option the remote indoor sensor can be installed to measure the room temperature on another location.

For installation instructions, see the installation manual of the remote indoor sensor and addendum book for optional equipment.

INFORMATION

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

▪You can only connect either the remote indoor sensor or the remote outdoor sensor.

ERLA03DAV3 + EHFZ03S18DJ3V	Installer reference guide
Daikin Altherma 3 R F	21
4P596821-1A – 2020.05

4 | About the units and options

Remote outdoor sensor (EKRSCA1)

By default the sensor inside the outdoor unit will be used to measure the outdoor temperature.

As an option the remote outdoor sensor can be installed to measure the outdoor temperature on another location (e.g. to avoid direct sunlight) to have an improved system behaviour.

For installation instructions, see the installation manual of the remote outdoor sensor and the addendum book for optional equipment.

INFORMATION

You can only connect either the remote indoor sensor or the remote outdoor sensor.

PC cable (EKPCCAB4)

The PC cable makes a connection between the switch box of the indoor unit and a

PC. It gives the possibility to update the software of the indoor unit.

For installation instructions, see the installation manual of the PC cable.

Pipe bend kit (EKHVTC)

When the indoor unit is installed in a place with limited space, a pipe bend kit can be installed to facilitate the connection to the refrigerant liquid and gas connections of the indoor unit.

For installation instructions, see the instruction sheet of the pipe bend kit.

Heat pump convector (FWXV)

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

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

LAN adapter for smartphone control + Smart Grid applications (BRP069A61)

You can install this LAN adapter to:

▪Control the system via a smartphone app.

▪Use the system in various Smart Grid applications.

For installation instructions, see the installation manual of the LAN adapter.

LAN adapter for smartphone control (BRP069A62)

You can install this LAN adapter to control the system via a smartphone app.

For installation instructions, see the installation manual of the LAN adapter.

Installer reference guide	ERLA03DAV3 + EHFZ03S18DJ3V
22	Daikin Altherma 3 R F
	4P596821-1A – 2020.05

5 | Application guidelines

5 Application guidelines

In this chapter

5.1	Overview: Application guidelines ...........................................................................................................................................		23
5.2	Setting up the space heating system .....................................................................................................................................		23
	5.2.1	Multiple rooms – Two LWT zones .........................................................................................................................	24
5.3	Setting up the domestic hot water tank ................................................................................................................................		26
	5.3.1	System layout – Integrated DHW tank ..................................................................................................................	26
	5.3.2	Selecting the desired temperature for the DHW tank ..........................................................................................	26
	5.3.3	Setup and configuration – DHW tank ....................................................................................................................	27
	5.3.4	DHW pump for instant hot water ..........................................................................................................................	28
	5.3.5	DHW pump for disinfection ...................................................................................................................................	28
5.4	Setting up the energy metering .............................................................................................................................................		29
	5.4.1	Produced heat ........................................................................................................................................................	29
	5.4.2	Consumed energy ..................................................................................................................................................	29
	5.4.3	Normal kWh rate power supply.............................................................................................................................	30
	5.4.4	Preferential kWh rate power supply......................................................................................................................	31
5.5	Setting up the power consumption control...........................................................................................................................		32
	5.5.1	Permanent power limitation..................................................................................................................................	32
	5.5.2	Power limitation activated by digital inputs ..........................................................................................................	33
	5.5.3	Power limitation process .......................................................................................................................................	34
5.6	Setting up an external temperature sensor...........................................................................................................................		34

5.1 Overview: Application guidelines

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

NOTICE

▪ The illustrations in the application guidelines are meant for reference only, and are NOT to be used as detailed hydraulic diagrams. The detailed hydraulic dimensioning and balancing are NOT shown, and are the responsibility of the installer.

▪For more information about the configuration settings to optimize heat pump operation, see "9 Configuration" 4[ 96].

This chapter contains application guidelines for:

▪Setting up the space heating system

▪Setting up the domestic hot water tank

▪Setting up the energy metering

▪Setting up the power consumption control

▪Setting up an external temperature sensor

5.2Setting up the space heating system

The 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 heat pump system?

ERLA03DAV3 + EHFZ03S18DJ3V	Installer reference guide
Daikin Altherma 3 R F	23
4P596821-1A – 2020.05

5 | Application guidelines

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

Once the space heating requirements are clear, we recommend to follow the setup guidelines below.

NOTICE

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

INFORMATION

In case an external room thermostat is used and room frost protection needs to be guaranteed in all conditions, then you have to set auto emergency [A.6.C] to 1.

NOTICE

An overpressure bypass valve can be integrated in the system. Keep in mind that this valve might not be shown on the illustrations.

5.2.1 Multiple rooms – Two LWT zones

This unit is designed to deliver water at 2 different temperatures. A typical installation consists of underfloor heating at a lower temperature and radiators at a higher water temperature.

In this document:

▪Main zone = Zone with the lowest design temperature

▪Additional zone = Zone with the highest design temperature Typical example:

Room (zone)	Heat emitters: Design temperature
Living room (main zone)	Underfloor heating: 35°C
Bed rooms (additional zone)	Heat pump convectors: 45°C

Setup

B	C
A
a		a
	E	b
D

AAdditional leaving water temperature zone

BRoom 1

Installer reference guide	ERLA03DAV3 + EHFZ03S18DJ3V
24	Daikin Altherma 3 R F
	4P596821-1A – 2020.05

5 | Application guidelines

CRoom 2

DMain leaving water temperature zone

ERoom 3

aRemote controller of the heat pump convectors

bUser interface used as room thermostat

▪For the main zone: the room temperature is controlled by the user interface, which is used as room thermostat (optional equipment EKRUDAS).

▪For the additional zone:

-The external thermostat is directly connected to the indoor unit.

-The desired room temperature is set via the external thermostat and the thermostatic valves of the radiators in each room.

-The heating demand signal from the external thermostat is connected to the digital input on the indoor unit (X2M/35a and X2M/30). The indoor unit will only supply the desired additional leaving water temperature when there is an actual demand.

▪The user interface connected to the indoor unit decides the space operation mode. Mind that the operation mode on each remote controller of the heat pump convectors must be set to match the indoor unit.

Configuration

		Setting	Value
	Unit temperature control:		2 (RT control): Unit operation is
	▪	#: [A.2.1.7]	decided based on the ambient
	▪	Code: [C-07]	temperature of the user interface.
			Note:
			▪ Main room = user interface used as
			room thermostat functionality
			▪ Other rooms = external room
			thermostat functionality
	Number of water temperature zones:		1 (2 LWT zones): Main + additional
	▪	#: [A.8]
	▪	Code: [7-02]
	In case of heat pump convectors:		1 (Thermo ON/OFF): When the used
	External room thermostat for the		external room thermostat or heat pump
			convector can only send a hermos ON/
	additional zone:
	▪	#: [A.8]	OFF condition. No separation between
			heating or cooling demand.
	▪	Code: [C-06]
	Shut-off valve output		Set to follow the hermos demand of the
			main zone.

Benefits

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

▪Efficiency.

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

-Underfloor heating has the best performance with the heat pump system.

ERLA03DAV3 + EHFZ03S18DJ3V	Installer reference guide
Daikin Altherma 3 R F	25
4P596821-1A – 2020.05

5 | Application guidelines

5.3 Setting up the domestic hot water tank

5.3.1 System layout – Integrated DHW tank

a

b

A

A Domestic hot water

aCold water IN

bHot water OUT

5.3.2Selecting 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 desired temperature for the DHW tank consists of:

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

2Determining the desired temperature for the DHW tank.

Determining the DHW consumption

Answer the following questions and calculate the DHW consumption (equivalent hot water volume at 40°C) using typical water volumes:

Question	Typical water volume
How many showers are needed per	1 shower = 10 min×10 l/min = 100 l
day?
How many baths are needed per day?	1 bath = 150 l
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 for 2 persons per day is as follows:

▪1 showers

▪1 bath

▪2 sink volumes

Then the DHW consumption = (1×100 l)+(1×150 l)+(2×10 l)=270 l

Installer reference guide	ERLA03DAV3 + EHFZ03S18DJ3V
26	Daikin Altherma 3 R F
	4P596821-1A – 2020.05

				5 | Application guidelines
	Determining the 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
	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

DHW tank volume

Integrated DHW tank volume: 180 l (=V2)

Energy saving tips

▪If the DHW consumption differs from day to day, you can program a weekly schedule with different desired DHW tank temperatures for each day.

▪The lower the desired DHW tank temperature, the more cost effective. By selecting a larger DHW tank, you can lower the desired DHW tank temperature.

▪The heat pump itself can produce domestic hot water of maximum 55°C (50°C if

outdoor temperature is low). The electrical resistance integrated in the heat pump can increase this temperature. However, this consumes more energy. We recommend to set the desired DHW tank temperature below 55°C to avoid using the backup heater.

▪The higher the outdoor temperature, the better the performance of the heat pump.

-If energy prices are the same during the day and the night, we recommend to heat up the DHW tank during the day.

-If energy prices are lower during the night, we recommend to heat up the DHW tank during the night.

▪When the heat pump produces domestic hot water, it cannot heat up a space. In case you need domestic hot water and space heating at the same, we recommend to produce the domestic hot water during the night when there is lower space heating demand.

5.3.3Setup 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 "9 Configuration" [496].

ERLA03DAV3 + EHFZ03S18DJ3V	Installer reference guide
Daikin Altherma 3 R F	27
4P596821-1A – 2020.05

5 | Application guidelines

5.3.4 DHW pump for instant hot water

Setup

a
	b
d	c

aCold water IN

bHot water OUT (shower (field supply))

cDHW pump (field supply)

dRecirculation 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 the electrical wiring, see "8.3.6 To connect the domestic hot water pump" [487].

For more information about connecting the recirculation connection, see "7.6.4 To connect the recirculation piping" [471].

Configuration

▪For more information, see "9 Configuration" [496].

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

5.3.5DHW pump for disinfection

Setup

	b
	c
a	d
	e

aCold water IN

bHot water OUT (shower (field supply))

cDHW pump (field supply)

dHeater element (field supply)

eNon-return valve (field supply)

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

installer. For the electrical wiring, see "8.3.6 To connect the domestic hot water pump" [487].

Installer reference guide	ERLA03DAV3 + EHFZ03S18DJ3V
28	Daikin Altherma 3 R F
	4P596821-1A – 2020.05

5 | Application guidelines

▪If the applicable legislation requires a higher temperature than the maximum tank setpoint during disinfection (see [2-03] in the field settings table), 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.

▪To ensure a complete disinfection, you have to open the tapping point.

WARNING

When opening the tapping point, the water temperature can be up to 55°C.

Configuration

The indoor unit can control DHW pump operation. For more information, see "9 Configuration" [496].

5.4Setting 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.

5.4.1 Produced 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.

5.4.2Consumed energy

You can use the following methods to determine the consumed energy:

▪Calculating

▪Measuring

ERLA03DAV3 + EHFZ03S18DJ3V	Installer reference guide
Daikin Altherma 3 R F	29
4P596821-1A – 2020.05

5 | Application guidelines

INFORMATION

You cannot combine calculating the consumed energy (example: for backup heater) and measuring the consumed energy (example: for outdoor unit). If you do so, the energy data will be invalid.

Calculating the consumed energy

▪The consumed energy is calculated internally based on:

-The actual power input of the outdoor unit

-The set capacity of the backup heater

-The voltage

▪Setup and configuration: To get accurate energy data, measure the capacity (resistance measurement) and set the capacity via the user interface for the backup heater (step 1).

Measuring the consumed energy

▪Preferred method because of higher accuracy.

▪Requires external power meters.

▪Setup and configuration: When using electrical power meters, set the number of pulses/kWh for each power meter via the user interface.

INFORMATION

When measuring the electrical power consumption, make sure ALL power input of

the system is covered by the electrical power meters.

5.4.3 Normal kWh rate power supply

General rule

One power meter that covers the entire system is sufficient.

Setup

Connect the power meter to X5M/5 and X5M/6. See "8.3.5 To connect the electricity meters" [486].

Power meter type

In case of…	Use a… power meter
▪ Single-phase outdoor unit	Single-phase

▪Backup heater supplied from a singlephase grid (i.e. the backup heater model is *3V connected to a singlephase grid)

Installer reference guide	ERLA03DAV3 + EHFZ03S18DJ3V
30	Daikin Altherma 3 R F
	4P596821-1A – 2020.05