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

52
DRAINING THE SOLAR COLLECTOR(S)
To drain the solar collector(s) and the solar hot and solar cold pipes:
Cover the solar collector(s) with an opaque material.
Open a hot water tap and allow the water to run for five minutes immediately prior to draining the solar
collector(s).
This will assist in the transfer of any high temperature water in the solar collector(s) to the solar storage
tank.
Close the hot water tap.
Turn off the water heater (refer to “To Turn Off The Water Heater” on page 48).
Warning: Exercise care, as water discharged from the solar collector(s) may be of a very high
temperature.
Using a flat bladed screw driver, open the bleed valve fitted adjacent to the solar hot water inlet of the
solar storage tank (refer to diagram on page 49).
Undo the compression fitting at the top of the circulator (located at the side of the solar control unit) and
disconnect the solar cold pipe.
Water will now drain from the solar collector(s) and the solar hot and solar cold pipes.
When water stops flowing from the solar hot and solar cold pipes, reconnect the solar cold pipe to the
circulator and tighten the compression fitting.
Close the bleed valve.
DRAINING THE WATER HEATER
To drain the water heater:
Cover the solar collector(s) with an opaque material.
Open a hot water tap and allow the water to run for five minutes immediately prior to draining the solar
storage tank.
This will assist in the transfer of any high temperature water in the solar collector(s) to the solar storage
tank.
Close the hot water tap.
Turn off the water heater (refer to “To Turn Off The Water Heater” on page 48).
Warning: Exercise care, as water discharged from the solar storage tank may be of a very high
temperature.
Operate the relief valve release lever - do not let the lever snap back or you will damage the valve seat.
Operating the lever will release the pressure in the water heater.
Undo the union at the cold water inlet and attach a hose.
Let the other end of the hose go to a drain.
Operate the relief valve again.
This will let air into the water heater and allow the water to drain through the hose.