Specifications
Table Of Contents
- Contents
- About Your Water Heater
- Water Heater Application
- Model Type
- Mains Pressure
- Solar Operation
- How Hot Should The Water Be?
- Hotter Water Increases The Risk Of Scald Injury
- Warning
- Safety
- Precautions
- Pipe Work And Insulation
- Freeze Protection
- Solar Monitor
- Bleeding The Solar Collector(S)
- To Turn Off The Water Heater
- To Turn On The Water Heater
- Going On Holidays
- How Do I Know If The Water Heater Is Installed Correctly?
- Victorian Customers
- Does The Water Chemistry Affect The Water Heater?
- How Long Will The Water Heater Last?
- Regular Care
- Water Supplies
- Save A Service Call
- Not Enough Hot Water (Or No Hot Water)
- Temperature Pressure Relief Valve Running
- Expansion Control Valve Running
- In-Series Water Heater Operating Too Frequently
- Collector Glass
- Noise From The Solar Collectors
- Green LED Is Not Illuminated On Solar Monitor
- Red LED Illuminated on Solar Monitor
- Circulator Operates at Night
- Higher Than Expected Gas Bills
- Installation – System
- Installation – Solar Storage Tank
- Solar Water Heater Storage Tank Location
- Safe Tray
- Mains Water Supply
- Tank Water Supply
- Wall Bracket
- Hot Water Delivery
- Circulated Hot Water Flow And Return System
- Reducing Heat Losses
- Anode
- Saddling - Pipe Work
- Anti-Freeze Heating Unit
- Backing Plate
- Dimensions And Technical Data
- Typical Installation (Remote Boost) – Outdoor Location
- Typical Installation (Remote Boost) – Indoor Location
- Typical Installation (Integrated Boost) – Outdoor Location
- Installation – Solar Control Unit
- Installation – Solar Collector(s)
- Connections – Plumbing
- Connections – Electrical
- Commissioning
- Draining The Solar Collector(s)
- Draining The Water Heater
- Vulcan Solar Water Heater Warranty – Australia Only –
- 1. The Vulcan Warranty – General
- 2. Terms Of The Vulcan Warranty And Exclusions To It
- 3. What Is Covered By The Vulcan Warranty For The Water Heaters Detailed In This Document
- 4. Entitlement To Make A Claim Under This Warranty
- 5. How To Make A Claim Under This Warranty
- 6. The Australian Consumer Law

INSTALLATION – SYSTEM
24
FREEZE PROTECTION
The system has a level of freeze protection designed to guard the system against damage from freeze
conditions. The system must be installed with the full length of the solar hot and solar cold pipes insulated
and power must be available at the solar control unit to offer protection against freeze damage (refer to
“Warning: Plumber Be Aware” on page 40). Freeze conditions occur below 6°C. Note: The Vulcan warranty
against freeze damage applies only to systems installed in Australia.
The system has NO WARRANTY for freeze damage when installed above 400 metres altitude or if the solar
hot and solar cold pipes are not insulated in accordance with the installation instructions or if power is not
available at the solar control unit (refer to “Terms of the Vulcan Warranty” on page 55).
INSTALLATION STANDARDS
The water heater must be installed:
by a qualified person, and
in accordance with the installation instructions, and
in compliance with Standards AS/NZS 3500.4, AS/NZS 3000, AS 5601 or AS/NZS 5601.1, as applicable
under local regulations, and all local codes and regulatory authority requirements.
In New Zealand, the installation must also conform with NZS 5261, as applicable under local regulations, and
Clause G12 of the New Zealand Building Code.
Warning: Temperature controllers must not be fitted to the in-series water heater as part of a solar water
heater system because water at a temperature much higher than the controller setting can be delivered.
Victorian Installers
Notice to Victorian Installers from the Victorian Plumbing Industry Commission if this solar water heater is
installed in a new Class 1 dwelling in the State of Victoria. The system model number is to be recorded on
the Certificate of Compliance. It is also a requirement to provide the householder with permanent
documentation recording the system model number exactly as it is shown in the „List of systems capable of
complying with the regulations‟ published by Sustainability Victoria (see www.sustainability.vic.gov.au). This
documentation may be in the form of an indelible label adhered to the solar storage tank, or other suitable
form placed in an accessible location, such as the meter box, for later inspection.
WATER HEATER APPLICATION
This water heater is designed for use in a single family domestic dwelling for the purpose of heating potable
water. Its use in an application other than this may shorten its life.
If this water heater is to be used where an uninterrupted hot water supply is necessary for the application or
business, then there should be redundancy within the hot water system design. This should ensure the
continuity of hot water supply in the event that this water heater was to become inoperable for any reason.
We recommend you provide advice to the system owner about their needs and building backup redundancy
into the hot water supply system.
This solar water heater is designed to be installed with a Rheem continuous flow 871 series 24 litre or a
874 series 18 litre in-series gas booster either mounted onto the storage tank or installed remotely, or a
Rheem 874 series 27 litre in-series gas booster installed remotely. The solar water heater may be installed
with another suitable type of remotely installed in-series continuous flow or storage booster. If the in-series
water heater is other than a Rheem continuous flow 871 series 24 litre or a 874 series 18 litre or 27 litre in-
series gas booster, then the references to the in-series gas booster in this guide may not be applicable to the
installation.
For information relating to the function and operation of the in-series water heater, refer to the Owner‟s Guide
and Installation Instructions supplied with the water heater.
Note: AS 3498 requires that a water heater provides the means to inhibit the growth of Legionella bacteria in
potable water. If this water heater is installed with an in-series continuous flow gas booster, then this
requirement of AS 3498 can be satisfied provided the booster is energised, its preset outlet temperature
setting is 70°C or higher and a remote temperature controller is not used.
If this water heater is installed with an in-series storage booster, then this requirement of AS 3498 can be
satisfied provided the storage booster is energised and its thermostat setting is 60°C or higher.