Solahart 250E5X Technical Document

This water heater must be installed and serviced by a qualified person.

Please leave this guide with the householder.

Electric Water Heater

Owner’s Guide

and

Installation Instructions

An electronic copy of these Owner’s Guide and Installation Instructions can be downloaded from solahart.com.au.

PATENTS

This water heater may be protected by one or more patents or registered designs

in the names of Solahart Industries Pty Ltd or Rheem Australia Pty Ltd.

TRADEMARKS

® Registered trademark of Solahart Industries Pty Ltd or Rheem Australia Pty Ltd.

TM Trademark of Solahart Industries Pty Ltd or Rheem Australia Pty Ltd.

Note: Every care has been taken to ensure the accuracy in preparation of this publication.

No liability can be accepted for any consequences, which may arise as a result of its application.

CONTENTS

HOUSEHOLDER

This booklet contains important information about your

new water heater, including terms of the Solahart warranty.

We recommend you read pages 7 to 23,

and the terms of the Solahart warranty on pages 4 to 6.

The other pages are intended for the installer but may be of interest.

Warranty ....................................................................................................................................... 4

Safety, Warnings, Installation Notes ......................................................................................... 7

How Your Water Heater Works ................................................................................................ 10

About Your Water Heater.......................................................................................................... 13

Maintenance Requirements...................................................................................................... 16

Water Supplies........................................................................................................................... 18

Save A Service Call ................................................................................................................... 21

Installation.................................................................................................................................. 24

Connections –Plumbing .......................................................................................................... 31

Connections –Electrical........................................................................................................... 34

Commissioning.......................................................................................................................... 36

Draining The Water Heater ....................................................................................................... 38

Solahart Offices ......................................................................................................................... 40

SOLAHART POWERSTORE ELECTRIC

WATER HEATER WARRANTY - AUSTRALIA ONLY

ELECTRIC WATER HEATER MODEL 250E5X, 250E6X, 315E5X, 315E6X

1. THE SOLAHART WARRANTY –GENERAL

1.1 This warranty is given by Solahart Industries Pty Limited ABN 45 064 945 848 of 1 Alan Street,

Rydalmere New South Wales.

1.2 Solahart offers national service through its Dealer network. Solahart will repair or replace components

at the address of the water heater subject to the terms of the Solahart warranty. Solahart, in addition

can provide preventative maintenance and advice on the operation of your water heater.

1.3 For details about this warranty, you can contact us on 1800 638 011.

1.4 The terms of this warranty and what is covered by it are set out in sections 2 and 3 and apply to water

heaters manufactured from the 1st December 2020.

1.5 If a subsequent version of this warranty is published, the terms of that warranty and what is covered by

it will apply to water heaters manufactured after the date specified in the subsequent version.

2. TERMS OF THE SOLAHART WARRANTY AND EXCLUSIONS TO IT

2.1 Solahart may reject a claim under this warranty in its sole discretion if:

a) You do not arrange for a major service to be conducted on your water heater in the fifth year after

installation, in accordance with Solahart’s recommendation in the Owner’s Guide and Installation

Instructions; and

b) The fault giving rise to the warranty claim would have been detected and rectified during that major

service.

2.2 The decision of whether to repair or replace a faulty component is at Solahart’s sole discretion. Solahart

may use new, used, remanufactured or refurbished parts or products when repairing or replacing

products under this warranty.

2.3 If you require a call out and we find that the fault is not covered by the Solahart warranty, you are

responsible for our standard call out charge. If you wish to have the relevant component repaired or

replaced by Solahart, that service will be at your cost.

2.4 Where a failed component or cylinder is replaced under this warranty, the balance of the original

warranty period will remain effective. The replacement does not carry a new Solahart warranty.

2.5 Where the water heater is installed outside the boundaries of a metropolitan area as defined by Solahart

or further than 30 km from a regional Solahart Dealer, the cost of transport, insurance and travelling

between the nearest Solahart Dealer’s premises and the installed site shall be the owner’s responsibility.

2.6 Where the water heater is installed in a position that does not allow safe or ready access, the cost of

that access, including the cost of additional materials handling and/or safety equipment, shall be the

owner’s responsibility. In other words, the cost of dismantling or removing cupboards, doors or walls

and the cost of any special equipment to bring the water heater to floor or ground level or to a serviceable

position is not covered by this warranty.

2.7 This warranty only applies to the original and genuine Solahart water heater in its original installed

location and any genuine Solahart replacement parts.

2.8 The Solahart warranty does not cover faults that are a result of:

a) Accidental damage to the water heater or any component (for example: (i) Acts of God such as

floods, storms, fires, lightning strikes and the like; and (ii) third party acts or omissions).

b) Misuse or abnormal use of the water heater.

c) Installation not in accordance with the Owner’s Guide and Installation Instructions or with relevant

statutory and local requirements in the State or Territory in which the water heater is installed.

SOLAHART POWERSTORE ELECTRIC

WATER HEATER WARRANTY - AUSTRALIA ONLY

ELECTRIC WATER HEATER MODEL 250E5X, 250E6X, 315E5X, 315E6X

d) Connection at any time to a water supply that does not comply with the water supply guidelines as

outlined in the Owner’s Guide and Installation Instructions.

e) Repairs, attempts to repair or modifications to the water heater by a person other than the Solahart

Dealer or a Solahart Accredited Service Agent.

f) Faulty plumbing or faulty power supply.

g) Failure to maintain the water heater in accordance with the Owner's Guide and Installation

Instructions.

h) Transport damage.

i) Fair wear and tear from adverse conditions (for example, corrosion).

j) Cosmetic defects.

2.9 Subject to any statutory provisions to the contrary, this warranty excludes any and all claims for:

a) Damage to furniture, carpet, walls, foundations or any other consequential loss either directly or

indirectly due to leakage from the water heater, or due to leakage from fittings and/ or pipe work of

metal, plastic or other materials caused by water temperature, workmanship or other modes of

failure, and

b) Loss or damage due to the water heater if it is not connected to or loses connectivity to the internet.

2.10 If the water heater is not sized to supply the hot water demand in accordance with the guidelines in

Solahart’s water heater literature, any resultant fault will not be covered by the Solahart warranty.

3. WHAT IS COVERED BY THE SOLAHART WARRANTY

FOR THE WATER HEATERS DETAILED IN THIS DOCUMENT

3.1 Solahart will repair or replace a faulty component of your water heater if it fails to operate in accordance

with its specifications as follows:

What components

are covered

The period from the date of

installation in which the

fault must appear in order to

be covered

What coverage

you receive

250E5X, 250E6X, 315E5X, 315E6X models

All components

Year 1

Repair and/or replacement of the

faulty component, free of charge,

including labour.

All components

(if the water heater is installed

in a single-family domestic

dwelling)

Years 2 & 3

Repair and/or replacement of the

faulty component, free of charge,

including labour.

The cylinder

(if the water heater is installed

in a single-family domestic

dwelling)

Years 4 to 10

Replacement cylinder, free of charge.

Installation and repair labour costs

are the responsibility of the owner.

The cylinder

(if the water heater is not

installed in a single-family

domestic dwelling)

Years 2 & 3

Replacement cylinder, free of charge.

Installation and repair labour costs

are the responsibility of the owner.

SOLAHART POWERSTORE ELECTRIC

WATER HEATER WARRANTY - AUSTRALIA ONLY

ELECTRIC WATER HEATER MODEL 250E5X, 250E6X, 315E5X, 315E6X

4. ENTITLEMENT TO MAKE A CLAIM UNDER THIS WARRANTY

4.1 To be entitled to make a claim under this warranty you need to:

a) Be the owner of the water heater or have consent of the owner to act on their behalf.

b) Contact Solahart without undue delay after detection of the defect and, in any event, within the

applicable warranty period.

4.2 You are not entitled to make a claim under this warranty if your water heater:

a) Does not have its original serial numbers or rating labels.

b) Is not installed in Australia.

5. HOW TO MAKE A CLAIM UNDER THIS WARRANTY

5.1 If you wish to make a claim under this warranty, you need to:

a) Contact Solahart on 1800 638 011 and provide owner’s details, address of the water heater, a

contact number and date of installation of the water heater or if that’s unavailable, the date of

manufacture and serial number (from the rating label on the water heater).

b) Solahart will arrange for the water heater to be tested and assessed on-site.

c) If Solahart determines that you have a valid warranty claim, Solahart will repair or replace the water

heater in accordance with this warranty.

5.2 Any expenses incurred in the making of a claim under this warranty will be borne by you.

6. THE AUSTRALIAN CONSUMER LAW

6.1 Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are

entitled to a replacement or refund for a major failure and for compensation for any other reasonably

foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods

fail to be of acceptable quality and the failure does not amount to a major failure.

6.2 The Solahart warranty (set out above) is in addition to any rights and remedies that you may have under

the Australian Consumer Law.

7. REPAIR NOTICE UNDER THE AUSTRALIAN CONSUMER LAW

7.1 Goods presented for repair may be replaced by refurbished goods of the same type rather than being

repaired. Refurbished parts may be used to repair the goods.

SAFETY, WARNINGS, INSTALLATION NOTES

It is important you read the following safety and warnings information.

SAFETY AND WARNINGS

•This water heater is only intended to be operated by persons who have the experience or the knowledge

and the capabilities to do so.

•This water heater is not intended to be operated by persons with reduced physical, sensory or mental

capabilities i.e. the infirm, or by children. Children should be supervised to ensure they do not interfere

with the water heater.

•If the electrical conduit to the water heater is damaged, it must be replaced by a qualified person in order

to avoid a hazard. Phone your nearest Solahart Dealer to arrange for an inspection.

•This water heater uses 220 V –240 V a.c. power for the electrically operated components. The removal

of the front cover(s) will expose 220 V –240 V a.c. wiring. They must only be removed by a qualified

person.

•This water heater is supplied with thermostats, over-temperature cut-outs, temperature sensors and a

combination temperature pressure relief valve. In addition, an E5X series water heater has a temperature

limiting valve. These devices must not be tampered with or removed. The water heater must not be

operated unless each of these devices is fitted and is in working order.

The Solahart warranty may not cover faults if relief valves or other safety devices are tampered

with or if the installation is not in accordance with these instructions.

•DANGER: The operation of the over-temperature cut-out on a thermostat indicates a possibly dangerous

situation. If the over-temperature cut-out operates, it must not be reset and the water heater must be

serviced by a qualified person.

•The water heater will operate until a water temperature of 70°C is reached inside of the cylinder under

normal operation, and up to 80°C could be reached on occasion during periods of excess energy

availability.

An E6X series water heater can deliver water at this temperature.

An E5X series 50°C limited water heater is temperature limited at the outlet. This is so the water

temperature supplied from fixtures used primarily for personal hygiene does not exceed 50°C.

Refer to “Twin Element Operation” on page 11 and to “How Hot Should The Water Be?” on page 13.

•For continued safety of this water heater it must be installed, operated and maintained in accordance with

the Owner’s Guide and Installation Instructions.

•Servicing of a water heater must only be carried out by qualified personnel. Phone your nearest Solahart

Dealer.

•The lever on the temperature pressure relief valve and expansion control valve (if fitted) requires to be

operated every six (6) months to clear any deposits and to ensure the valve and its drain line are not

blocked.

Refer to “Relief Valves” on page 8 and “Minor Maintenance Every Six Months” on page 16.

•Only a person qualified to install or service a water heater can drain the water heater, if this is required.

•Do not modify this water heater.

SAFETY, WARNINGS, INSTALLATION NOTES

RELIEF VALVES

Temperature Pressure Relief Valve

This water heater incorporates a temperature pressure relief valve

located near the top of the water heater. This valve is essential for the

water heater’s safe operation.

It is possible for the valve to discharge a quantity of water through the

drain line during each heating period. This quantity should be equal

to approximately 1/50 of the hot water used, as water expands by this

volume when heated.

Expansion Control Valve

In many areas, including South Australia, Western Australia and

scaling water areas, it is mandatory an expansion control valve is

fitted to the cold water line to the water heater.

The expansion control valve will discharge the quantity of water from

its drain line during the heating period instead of the temperature

pressure relief valve as it has a lower pressure rating.

Valve Operation

Continuous leakage of water from either valve and its drain line may

indicate a problem with the water heater. Refer to “Temperature

Pressure Relief Valve or Expansion Control Valve Running” on

page 22.

Warning: Never block the outlet of either valve or their drain lines

for any reason. A relief valve drain must be left open to atmosphere,

and be installed in a continuously downward direction.

In locations where water pipes are prone to freezing, the relief valve

drain line must be insulated and not exceed 300 mm in length before

discharging into a tundish through an air gap.

Operate the easing lever on the temperature pressure relief valve and expansion control valve once every

six (6) months to clear any deposits and ensure the valve and its drain line are not blocked. It is very important

the lever is raised and lowered gently. Refer to “Minor Maintenance Every Six Months” on page 16.

Warning: Water discharged from the temperature pressure relief valve drain line will be hot. Exercise care

to avoid any splashing of water by standing clear of the drain line’s point of discharge when operating either

valve’s easing lever.

DANGER: Failure to operate the easing lever on the relief valve once every six (6) months may result in

the water heater cylinder failing, or under certain circumstances, exploding.

If water does not flow freely from the drain line when the lever is lifted, then the water heater must be checked.

Phone your nearest Solahart Dealer to arrange for an inspection.

The temperature pressure relief valve should be replaced at intervals not exceeding five (5) years and the

expansion control valve should be checked for performance or replaced at intervals not exceeding

five (5) years. The checking of the valves performance or replacement should occur more frequently in areas

where there is a high incidence of water deposits. Refer to “Water Supplies” on page 18.

outlet /

drain

line

lift until water

flows from the

drain line –

lower gently

SAFETY, WARNINGS, INSTALLATION NOTES

INSTALLATION NOTES

This water heater must be installed:

•by a qualified person,

•in accordance with the installation instructions,

•in compliance with the Plumbing Code of Australia (PCA) and Plumbing Standard AS/NZS 3500.4,

▪This water heater is designed for either indoor or outdoor installation.

▪This water heater is intended to be permanently connected to the water mains and not connected by

a hose-set. A braided flexible hose or semi-flexible connector may be used for connection to the water

heater, where permitted by AS/NZS 3500.4.

•in compliance with the Australian / New Zealand Wiring Rules AS/NZS 3000,

▪An isolation switch must be installed at the switchboard in the electrical circuit to the water heater in

accordance with the Wiring Rules, so the water heater can be switched off. Refer to “Connections –

Electrical” on page 34.

▪The power supply wires are to be directly connected to the terminal block and earth tab connection,

with no excess wire loops inside the front cover. The temperature rating of the power supply wires

insulation must suit this application, or the wiring protected by insulating sleeving with an appropriate

temperature rating if it can make contact with the internal storage cylinder. The temperature of the

internal storage cylinder can reach 80°C on occasion.

•in compliance with all local codes and regulatory authority requirements.

Installation and commissioning requirements and details for the installing plumber and licensed electrical

worker are contained on pages 24 to 37.

Mains pressure water supply

The water heater is designed to operate at mains pressure by connecting directly to the mains water supply.

The water heater is supplied with a temperature pressure relief valve with a pressure rating of 1000 kPa. If an

expansion control valve has been installed on the cold water line to the water heater, this should have a

pressure rating of 850 kPa.

The maximum mains water supply pressure for the water heater is 800 kPa if an expansion control valve is

not installed, or 680 kPa if an expansion control valve is installed. If the mains supply pressure in your area

exceeds these values, a pressure limiting valve must be installed.

The supply pressure should be greater than 350 kPa for true mains pressure operation to be achieved.

HOW YOUR WATER HEATER WORKS

ABOUT YOUR SOLAHART POWERSTORE

The Solahart PowerStore Grid Interactive water heater is a premium electric water heater designed to work in

partnership with an external control device, the Energy Management Unit, in order to take advantage of special

tariffs and rebates available from your electricity retailer and when installed with solar PV, use excess solar

PV power production.

The amount of hot water stored in the Solahart PowerStore Grid Interactive water heater will be monitored

using communication through the connected Energy Management Unit and heating times optimised to use

electricity when utility grid supply is higher than customer demand. Hot water monitoring will also ensure

sufficient heating is provided to ensure there is always a minimum amount of hot water stored to meet standard

domestic needs during periods when customer demand for utility grid supply is high.

In addition, when installed with solar PV and an external Power Meter, the PowerStore Grid Interactive water

heater is able to modify its power consumption to be similar to the excess solar PV generation, when the water

it contains requires heating. Water is then heated at the expense of the surrendered solar feed-in tariff, rather

than purchasing energy from the utility grid to perform the heating.

The Solahart PowerStore Grid Interactive water heater also has the ability to tell the Energy Management Unit

and Power Meter the amount of hot water available at any time, enabling it to be used as a key component in

a sophisticated home energy management system (HEMS) provided by a third party service provider. This

would allow the water heater to use utility grid sourced power for additional water heating or to achieve safety

and compliance requirements (when required) at the most economical electricity tariff available.

SYSTEM OPERATION

The Solahart PowerStore Grid Interactive water heater operates as a staged power input water heater at times

when utility grid supply is higher than demand or when there is excess solar PV power production. When

excess power is detected and water heating is required, the water heater’s controller module and the Energy

Management Unit or Power Meter react enabling the water heater to operate at an equivalent power

consumption.

A combination of the unique triple blade multi-stage heating unit design and electronic control enables staged

input from 515 W to full power in ~500 W steps for the lower heating unit. This power control system allows

the water heater to operate whenever smaller or larger amounts of excess solar PV power production or excess

utility grid supply are detected and water heating is required.

The Solahart PowerStore Grid Interactive water heater has inbuilt protection against running low on hot water

and will also maintain a fixed minimum water temperature as a safety and compliance requirement. During

periods when there is no excess utility grid supply or excess power from solar PV generation and heating of

the water is required, electricity from the utility grid will be used to ensure the availability of hot water, by using

the top heating unit.

The water is heated to a temperature up to 70°C under normal operation from utility grid supplied electricity.

On occasion if there is an excess of utility grid supplied electricity available, the Energy Management Unit may

command the water heater to heat the water to a maximum of 80°C to make use of this excess electricity.

Note: If the water heater is installed without either the Energy Management Unit or Power Meter or connection

to a home energy management system (HEMS), it will operate as a conventional twin element electric water

heater. The water will be heated to 70°C. It won’t be able to be part of an intelligent water heating system or

take advantage of excess solar PV power production.

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