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
ABOUT YOUR WATER HEATER
6
Standby mode
The water heater will be in Standby mode whenever conditions are not favourable for solar heating in Normal
operation, and Over-temperature operation and Night Time Cooling are not required or have been
completed, and conditions are not cold enough for or in-between Freeze Protection operation.
Solar Monitor LED operation
The LEDs on the Solar Monitor, located on the side of the solar control unit, operate to show the operational
mode of the water heater. Refer also to “Solar Monitor” on page 10.
Mode
Green LED
Red LED
power on* > 48 hours
power on* < 48 hours
Normal operation
rapid pulse
3 flashes
off **
Over-temperature operation
rapid pulse
3 flashes
off, or solid then off
Night Time Cooling operation
rapid pulse
3 flashes
off
Freeze Protection operation
rapid pulse
3 flashes
off
Standby mode
solid
slow pulse
off
Notes
* Power from the GPO to the solar control unit.
** In Normal Operation the red LED may emit a rapid pulse for a short period of time under certain
circumstances (refer to “Rapid Pulsing” on page 21).
HOW HOT SHOULD THE WATER BE?
The solar control unit will circulate water through the solar
collector(s) until a temperature of 70°C to 80°C is reached in the
solar storage tank.
During periods of low solar energy gain, the continuous flow in-
series gas booster will boost the water temperature automatically to
its preset outlet temperature setting, or to the temperature setting of
another type of in-series booster water heater.
The factory preset outlet temperature setting of the in-series gas
booster is:
871 series 24 litre models 60°C
874 series 18litre, 27 litre models 60°C
Note: The preset outlet temperature setting of a continuous flow in-
series gas booster cannot be adjusted by the householder. The
setting can only be adjusted by the installer, Rheem Service or their
nearest Accredited Service Agent.
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.
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.
typical maximum
temperature from solar gain
maximum recommended
supply temperature to
bathrooms and ensuites