Daikin EKHWSU150BA3V3, EKHWSU200BA3V3, EKHWSU300BA3V3, EKUHWBB Installation manuals

INSTALLATION MANUAL

Domestic hot water tank with option kit for air to water heat pump system

EKHWSU150BA3V3

EKHWSU200BA3V3

EKHWSU300BA3V3

EKUHWBB

EKHWSU150BA3V3	Domestic hot water tank with option kit for air to
EKHWSU200BA3V3	water heat pump system
EKHWSU300BA3V3

Installation manual

Contents	Page	Introduction
Introduction .......................................................................................	1

General information..................................................................................	1
Scope of this manual................................................................................	1
Model identification ..................................................................................	1
Accessories.......................................................................................	1
Accessories supplied with the EKHWSU domestic hot water tank ..........	1
Accessories supplied with the EKUHWBB option kit for the
domestic hot water tank ...........................................................................	2
Checklist for the required DHW accessories............................................	2
Installation of the EKHWSU domestic hot water tank .......................	2
Main components.....................................................................................	3
Outlook diagram.......................................................................................	4
Installation guidelines...............................................................................	4
Installing the domestic hot water tank......................................................	4
Connecting the water circuits...................................................................	4
Field wiring...............................................................................................	6
Installation of the option kit on the domestic hot water tank..............	9
Piping requirements .................................................................................	9
Installation procedure of the option kit ...................................................	10
Commissioning................................................................................	10
Filling up.................................................................................................	10
Draining..................................................................................................	10
Maintenance.....................................................................................	11
Troubleshooting................................................................................	11
General guidelines ..................................................................................	11
General symptoms..................................................................................	11
Technical specifications...................................................................	12
Domestic hot water tank specifications..................................................	12
Pressure reducing valve specifications..................................................	13
Field wiring diagram...............................................................................	13
Test results in accordance with EN12897 (2016)...................................	13
Warning label .........................................................................................	13

READ THESE INSTRUCTIONS CAREFULLY BEFORE INSTALLATION. KEEP THIS MANUAL IN A HANDY PLACE FOR FUTURE REFERENCE.

MAKE SURE THAT THE USER HAS THE PRINTED DOCUMENTATION AND ASK HIM/HER TO KEEP IT FOR FUTURE REFERENCE.

PLEASE LEAVE THIS MANUAL WITH THE EKHWSU DOMESTIC HOT WATER TANK AFTER INSTALLATION.

IMPROPER INSTALLATION OR ATTACHMENT OF EQUIPMENT OR ACCESSORIES COULD RESULT IN ELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR OTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLY TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE SPECIFICALLY DESIGNED FOR USE WITH THE EQUIPMENT AND HAVE THEM INSTALLED BY A PROFESSIONAL.

General information

Thank you for purchasing this Daikin Altherma EKHWSU domestic hot water tank.

The Daikin Altherma domestic hot water tank must be installed by a competent person and be installed in compliance with instructions as of subject in this manual, all current legislation, codes of practice and regulations governing the installation of unvented hot water cylinders in force at the date of installation.

This installation is subject to building regulation approval, notify Local Authority of intention to install.

The domestic hot water tank is to be connected to the Daikin Altherma unit.

The EKHWSU domestic hot water tank with integrated 3 kW electrical booster heater is available in three types: 150, 200 and 300. All models are floor mounted.

Scope of this manual

This installation manual describes the procedures for installing and connecting the EKHWSU domestic hot water tanks with the EKUHWBB option kit.

Model identification

Domestic hot water tank

EK HWS U 150 BA

3

V3

Booster heater voltage

V3=1P, 230 V

Capacity booster heater: 3 kW

Series

Indication of storage capacity in litres

Special version for United Kingdom only Standard version when no letter is mentioned

Hot Water stainless Steel tank European Kit

Accessories

Accessories supplied with the EKHWSU domestic hot water tank

IF UNSURE OF INSTALLATION PROCEDURES OR USE, ALWAYS CONTACT YOUR DAIKIN DEALER FOR ADVICE AND INFORMATION.

THE UNIT DESCRIBED IN THIS MANUAL IS DESIGNED FOR INDOOR INSTALLATION ONLY AND FOR AMBIENT TEMPERATURES RANGING 0°C~35°C.

1	2	3	4	5	6
1x	1x	2x	4x	1x	1x

1 Thermistor + connection wire (12 m)

2 Contactor - fuse assembly

3 Contactor fixing screw

4 Tapping screw

5 3-way valve + motor

6 Installation manual

Installation manual	EKUHWBB + EKHWSU150~300BA3V3
1	Domestic hot water tank with option kit for air to water heat pump
	system
	4P610549-1 – 2020.01

Accessories supplied with the EKUHWBB option kit for the domestic hot water tank

1	2	3	4
1x	1x	1x	1x

5	6	7	8
1x	1x	1x	1x

1Pressure reducing valve and expansion relief valve. Water inlet and water outlet 22 mm connection, discharge piping connection 15 mm

2 Adaptor 22 mm×3/4" Female BSP

3 T-piece 1/2" Female BSP×15 mm×15 mm

4 Expansion vessel of 18 litres 3/4" Male BSP

5 Tundish 15 mm inlet, 22 mm outlet

6 Elbow/Drain valve 22 mm×3/4" Male BSP

7 T-piece 22 mm×22 mm×22 mm

8 Instruction sheet

Checklist for the required DHW accessories

For installation compliant with section G3 of the Building Regulations, you must verify that the following accessories are present.

Delivered with EKHWSU domestic hot water tank:

Thermistor + connection wire (12 m)

Contactor - fuse assembly

Contactor fixing screw

Tapping screw

3-way valve + motor

Installation manual

Delivered with EKUHWBB kit:

Pressure reducing valve and expansion relief valve. Water inlet and water outlet 22 mm connection, discharge piping connection 15 mm

Adaptor 22 mm×3/4" Female BSP

T-piece 1/2" Female BSP×15 mm×15 mm

Expansion vessel of 18 litres 3/4" Male BSP

Tundish 15 mm inlet, 22 mm outlet

Elbow/Drain valve 22 mm×3/4" Male BSP

T-piece 22 mm×22 mm×22 mm

Instruction sheet

Installation of the EKHWSU domestic hot water tank

 The total Daikin Altherma system is designed for combination with a Daikin Altherma domestic hot water tank. In case another tank or a spare part other than native Daikin is being used in combination with the Daikin Altherma unit, Daikin cannot guarantee neither good operation nor reliability of the system. For those reasons Daikin cannot give warranty of the system in such case.

The equipment is not intended for use in a potentially explosive atmosphere.

For safety reasons, it is not allowed to add ethylene glycol to the water circuit. Adding ethylene glycol might lead to contamination of the domestic water if a leakage would occur in the heat exchanger coil.

Domestic water quality must be according to EN directive 98/83 EC.

Wherever possible the main supply pipe should be in 22 mm. The minimum main water supply requirement should be 1.5 bar working pressure and 20 litres per minute flow rate. At these values outlet flow rates may be poor if several outlets are used simultaneously, the higher the available pressure and flow rate the better the system performance will be.

It is important that the storage capacity of the domestic water tank meets normal daily fluctuations in consumption of hot water without any fall of the water outlet temperature during use.

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.

If applicable legislation requires a chemical disinfection in specific situations, involving the Altherma domestic hot water tank, please be aware that the domestic hot water tank is a stainless steel cylinder containing an aluminium anode. We therefore advise in these circumstances to use a non-chloride based disinfectant approved for use with water intended for human consumption.

Where the secondary return circuits are used an additional expansion vessel may be required.

EKUHWBB + EKHWSU150~300BA3V3	Installation manual
Domestic hot water tank with option kit for air to water heat pump	2
system

4P610549-1 – 2020.01

Main components

3
4
5
6		13
7
	F	12
8
9
10
	R
11	C

1 Hot water connection

2 Temperature and pressure relief valve

3 Electrical box

4 Electrical box lid

5 Recirculation hole

6 Thermistor socket

7 Flow inlet connection

8 Heat exchanger coil

9 Threaded thermistor hole

10Return outlet connection

11Cold water connection

12Cable hole to fit PG nipple and nut into for cable connections of booster heater, power supply and thermal protection cable.

13Electrical booster heater

Safety devices

The domestic hot tank relief valve connections should

not be used for other purposes.

Do not install heaters without thermal cut-outs.

Thermal protector — The booster heater in the domestic hot water tank is equipped with a thermal protector (setting 85°C).

The electrical box lid must only be opened by a

licensed electrician.

Switch off the power supply before opening the electrical box lid.

Temperature and pressure relief valve

The temperature and pressure relief valve prevents excessive water temperature (>95°C) and excessive water pressure (≥10 bar) in the domestic hot water tank.

Expansion relief valve (option kit)

The pressure relief valve prevents excessive water pressure (≥8 bar) in the water circuit.

NOTICE

Refer to "Installation of the option kit on the domestic hot water tank" on page 9 for connection of other safety devices in accordance with relevant local and national regulations.

Installation manual	EKUHWBB + EKHWSU150~300BA3V3
3	Domestic hot water tank with option kit for air to water heat pump
	system

4P610549-1 – 2020.01

Outlook diagram

	100
	73
	30
	45
105	400
	15
<![if ! IE]> <![endif]>300
	15 mm	6
		1
		2
		7
		3
		9
		8
		4
		5
<![if ! IE]> <![endif]>265	<![if ! IE]> <![endif]>154
	595

1 Hot water connection

2 Recirculation hole

3Flow inlet connection (see also "Installation guidelines" on page 4 regarding pipe size to use)

4Return outlet connection (see also "Installation guidelines" on page 4 regarding pipe size to use)

5 Cold water connection

6 Temperature and pressure relief valve connection

7 Thermistor socket

8 Threaded thermistor hole

9 Warning label

	H1	H2	H3	H4	H5
EKHWSU150BA3V3	945 mm	520 mm	185 mm	1038 mm	650 mm
EKHWSU200BA3V3	1195 mm	675 mm	200 mm	1288 mm	875 mm
EKHWSU300BA3V3	1645 mm	675 mm	200 mm	1738 mm	875 mm

Installation guidelines

Keep in mind the following guidelines when installing the domestic hot water tank:

The installation location is frost-free.

Make sure to make the piping in size 1" or more (and reduce to 3/4" at the inlet of the tank) as to have sufficient water volume in the piping between unit and domestic hot water tank.

Locate the domestic hot water tank in a suitable position to facilitate easy maintenance; remember access is required to the electrical box. Refer to the grey zones in the outlook diagram.

If installing an EKHWSU* domestic hot water tank, installing the option kit EKUHWBB is obligatory. Refer to the UK Building Regulation G3.

Take care that in the event of a leak, water cannot cause any damage to the installation space and surroundings.

Installing the domestic hot water tank

1Check if all domestic hot water tank accessories (see "Accessories" on page 1) are enclosed.

2Place the domestic hot water tank on a level floor surface. Make sure the tank is mounted level.

3Apply thermal paste to the thermistor and insert the thermistor as deep as possible in the thermistor socket. Fix using the nut provided.

Connecting the water circuits

Refer to "Typical application examples" described in the installation manual delivered with the unit for details on connecting the water circuits and the motorised 3-way valve.

Connecting the 3-way valve

1Refer to the figure below before making the connection.

		<![if ! IE]> <![endif]>44
	13	<![if ! IE]> <![endif]>44
77	38	67

111

EKUHWBB + EKHWSU150~300BA3V3	Installation manual
Domestic hot water tank with option kit for air to water heat pump	4
system

4P610549-1 – 2020.01