Sunamp UniQ eHW Series User manual

UniQ eHW Heat Battery Installation and
User Manual
UniQ eHW Heat Batteries Installation and User Manual
Keep these instructions in a safe place for future reference
Keep these instructions in a safe place for future reference.

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Safety Notice
Symbols and Notices Used and Their Meanings
Symbols
Warning
Electric Hazard
Take note
Cross reference
Warning Notices
Consequences
Likelihood
Death/serious injury (irreversible)
Potential risk
Damage/minor injury (reversible)
Potential risk
DO NOT install outdoors. This product is for indoor use only.
Improper installation, adjustment, alteration, service or maintenance can
cause property damage, injury and death.
ONLY competent persons who are suitably qualified to carry out
plumbing and electrical work and have successfully completed product
training by Sunamp Ltd or an authorised training partner may undertake
installations, repairs or relocations.
The system must be earthed correctly and have its own independent
electrical supply with correct voltage and circuit breakers.
The point of connection to the mains should be readily accessible and
adjacent to the Heat Battery installation. Connection must allow isolation
of the electrical supply. Disconnection must be achieved by a fused spur
in accordance with the wiring rules.
Only use this product for the intended purpose described in this manual.
There are no user serviceable, adjustable or settable parts in this product.
Read the full Safety Instructions in Section 1 of this manual
before you install this product.

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Document Purpose
To instruct competent persons on how to safely install UniQ eHW Heat Batteries. Competent
persons are those suitably qualified to carry out plumbing and electrical work and have
successfully completed product training by Sunamp Ltd or an authorised training partner.
Contents
1Safety Instructions........................................................................................................4
1.1 Intended Use .........................................................................................................................4
1.2 Pre-installation Safety Advice..............................................................................................4
1.3 Mechanical Safety.................................................................................................................4
1.4 Electrical Safety.....................................................................................................................5
1.5 Water Safety ..........................................................................................................................5
1.6 User Competence, Qualification, and Approval ................................................................6
1.7 Compliance with Safety Laws and Regulations................................................................. 6
1.8 Post-Installation Safety .........................................................................................................7
1.9 Repair and Relocation .......................................................................................................... 7
2UniQ eHW Heat Battery Overview................................................................................8
2.1 Introduction............................................................................................................................ 8
2.2 Product Overview .................................................................................................................9
2.3 Product Identification..........................................................................................................11
2.4 Accessories and Parts........................................................................................................12
2.5 Technical Specifications ....................................................................................................13
2.6 Pressure Loss Characteristics...........................................................................................16
3Installation...................................................................................................................17
3.1 Installation Process.............................................................................................................17
3.2 Water Supply Requirements..............................................................................................20
3.3 Location and Space Requirements...................................................................................21
3.4 Hydraulic Requirements.....................................................................................................23
3.5 Temperature and Insulation Requirements......................................................................23
3.6 Electrical and Wiring Requirements..................................................................................24
3.7 Wiring Option 1 –24h Grid Supply Without Time-Switch..............................................27
3.8 Wiring Option 2 –On-/Off-Peak Tariff with External Time-Switch.................................30
4Commissioning ...........................................................................................................33
4.1 Preparation ..........................................................................................................................33
4.2 Process.................................................................................................................................33
5Operation ....................................................................................................................35
5.1 Switch On/Off ......................................................................................................................35
5.2 LED Indicators and Status..................................................................................................35
5.3 Troubleshooting ..................................................................................................................36
6Maintenance................................................................................................................38
6.1 Removal of Lids...................................................................................................................38
6.2 Cleaning ...............................................................................................................................38
6.3 Warranty...............................................................................................................................39
7Recycling and Disposal ..............................................................................................39

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1Safety Instructions
Sunamp Ltd is not responsible for the failure of components not
specified in this manual and/or supplied by other manufacturers.
1.1 Intended Use
The intended use of the UniQ eHW range of products is for the
provision of hot water for domestic purposes by means of electric
charging of the Heat Battery. It is not intended for use with other
charging methods or in applications other than the provision of
domestic hot water.
1.2 Pre-installation Safety Advice
•Sunamp Ltd is not responsible for the selection, specification
or effectiveness of equipment, unless stated in writing.
Responsibility lies with customers and any experts or
consultants involved in design and/or installation.
•Where applicable, this manual should be read in conjunction
with manufacturer documentation for any components
specified in the installation requirements of this manual.
•Where necessary, refer to the Sunamp website
(www.sunamp.com) for contact and support information.
1.3 Mechanical Safety
•DO NOT install outdoors. This product is only suitable for
indoor use to avoid weather damage.
•DO NOT tilt the product more than 45 degrees during the
transportation or installation process.
•Install the product on a hard, solid and level surface that
can support its weight.
•DO NOT use detachable hose-sets to connect the system
to water mains.

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•All hot works (such as soldering, welding or brazing) must be
performed on tubes detached from the heat battery
(minimum 1 metre away).
•This product is NOT suitable for tank fed hot water system.
•Do not immerse this product in water or any other liquid.
1.4 Electrical Safety
•The product must be earthed correctly and have its own
independent electrical supply (with correct voltage and
circuit breakers).
•The point of connection to the mains should be readily
accessible and adjacent to the Heat Battery installation.
•Connection must allow isolation of the electrical supply. The
means of isolation must be accessible to the end user after
installation.
•Disconnection must be achieved by a fused spur in
accordance with the wiring rules.
•Ensure that there is water in the system before switching on
electrical supply.
•All models in this manual are designed for heating by
integrated electric heaters only.
1.5 Water Safety
•Minimum working pressure of Heat Battery is 0.15 MPa / 1.5
Bar. Maximum working pressure of Heat Battery is 1.0 MPa
/ 10 Bar. See section 2.5.2 for detailed specifications.

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1.6 User Competence, Qualification, and Approval
•ONLY competent persons who are suitably qualified to carry
out plumbing and electrical work and have successfully
completed product training by Sunamp Ltd or an authorised
training partner may undertake installations, repairs or
relocations.
•DO NOT allow children or any other unqualified or
unapproved persons to install, repair, clean, relocate,
interfere or tamper with the product.
•This product is not designed for use by children, or persons
with reduced physical, sensory or mental capabilities, and
should not be used by such persons unless they can do so
safely. Where necessary, such persons (or anyone with lack
of experience or knowledge) should first be given supervision
or instruction concerning use of the product by a person
responsible for their safety.
1.7 Compliance with Safety Laws and Regulations
•Installations, repairs and relocations must comply with all
relevant local laws and regulations (‘statutory obligations’),
particularly concerning electrics, water supplies, building
regulations and Manual Handling Operations, as issued by
the Government Health and Safety Executive (‘HSE’). Water
distribution and central heating installations (‘systems’) must
comply with all statutory obligations.
•Statutory obligations always override manufacturer
documentation where there is a conflict.

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1.8 Post-Installation Safety
•All goods are sold subject to Sunamp Ltd’s ‘Conditions of
Sale’, as listed on the company website.
•As Sunamp Ltd continuously improves products, they may be
modified without notice. In such circumstances this manual
and other relevant documentation should be disregarded.
Updated documentation will be produced, supplied with new
product ranges and made available on request.
•Once installed:
oPerform a test run to ensure normal operation.
oExplain all safety precautions to the end user.
oProvide a copy of this manual to the end user.
•It is the responsibility of the end user to supply this manual to
any other subsequent users.
1.9 Repair and Relocation
•DO NOT attempt to carry out repairs or maintenance before
the system components –including the UniQ eHW Heat
Batteries - have cooled down to ambient room temperature.
To speed up the process, disconnect power supply and open
hot water taps in the dwelling to draw off hot water and cool
system down.
•DO NOT attempt to move an assembled system without using
appropriate lifting equipment.
•There are no user serviceable, adjustable or settable parts in
this product.
SAVE THESE INSTRUCTIONS AND
PROVIDE A COPY TO THE END USER.

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2UniQ eHW Heat Battery Overview
2.1 Introduction
Thank you for choosing a Sunamp Ltd UniQ Heat Battery, our innovative,
super-compact heat storage system based on phase-change materials
(PCM). We are sure you will be delighted with the performance,
compactness, ease of installation and quality of our product.
Sunamp Ltd’s decade-long history of research and innovation in PCM
technology has made it the world-leading manufacturer in Heat Battery
technology –developed, designed and manufactured in the UK.
Sunamp Ltd has a wide portfolio of Heat Batteries for different applications.
Please visit our website (www.sunamp.com) or look at our catalogue for
more information about our portfolio for:
•Water heating
•Space-heating
•Combined space- and water-heating
•Cooling
The Sunamp Ltd UniQ eHW Heat Batteries are:
•Designed to produce domestic hot water and are heated directly by grid
electricity only.
•Equivalent to direct electrically heated hot water cylinders and hot water
only thermal stores.
•Heated by internal electric heating elements only, and therefore able to
replace direct unvented cylinders.
•Classified as a Primary Thermal store. By transferring heat from the
PCM to the mains water flowing through the heat exchanger, they
produce hot water instantaneously and on demand.
•Class I stationary appliances that use a single-phase electrical supply.
See the downloads section of our website (www.sunamp.com) for other
useful information on Sunamp Ltd products.

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2.2 Product Overview
Figure 1: Heat Battery (external)
Item
Description
1
Heat Battery –main body
2
Heat Battery –lid
3
Data badge / serial number
4
Controller interface
5
Terminal cover plate
6
Tube entries (3 sides)
7
Cable entries (3 sides)
8
Energy label –to be applied by installer (if applicable)
Table 1: Product overview (external)

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Figure 2: Heat Battery (internal)
Item
Description
1
Insulation layers –to be cut to suit copper tube and cable entries
2
Temperature sensor
3
Electrical control box –PCB, relays, terminal block
4
Non-self-resetting overheat thermostat (OHT)
Table 2: Product overview (internal)