Vulcan Express

SA Hot water is your local  specialist for Vulcan Hot water systems. We can repair and service all models of Vulcan hot water systems. Call today on 8444 7320 to see how we can assist.

Vulcan made (and still make) a range of gas  hot water systems. The Express range was a continuous flow, hot water-on-demand range and was a popular choice for Adelaide households and many are still in service today. They were available in both externally mounted and internal models. However, due to their age, they are starting to need replacement or repair. SA Hot Water™ is here for all your Vulcan hot water servicing requirements.

Our Fully qualified and insured plumbers carry a range of replacement parts and can advise on suitable replacement models should it not be economically viable to repair your faulty hot water service.

The Express offered:

Congratulations for choosing a Vulcan Continuous Flow gas water heater. The model you have chosen is either an internal only or external only, and both are designed for wall mounting. The internal model has a white enamel finish and the external model has a beige colorbond outer casing with a built in balanced flue. The heater controls are located on the front of the internal models. For the external models, remove the access door.

HOW HOT SHOULD THE WATER BE?

This type of appliance operates on the principle of heating water as it passes through the heater. The temperature from the hot tap will be a minimum 25° C above the cold water temperature. Incorporated in the controls is a temperature selector knob that can be used to compensate for the seasonal changes of the cold water temperature. (See temperature adjustment below).

HOTTER WATER INCREASES THE RISK OF SCALD INJURY.

We recommend, and it may also be required by regulations, that a temperature control device be fitted into the hot water piping to the bathroom and ensuite. This will keep the water temperature below 50 °C at the bathroom and en suite. The risk of scald injury will be reduced but still allow hotter water to the kitchen and laundry.

TEMPERATURE ADJUSTMENT

The appliance incorporates a temperature selector knob. (See drawing). To select the required hot water temperature turn temperature selector:

  • Clockwise to increase temperature which will decrease the water flow rate.
  • Anti-clockwise to decrease temperature which will increase the water flow rate.

TO TURN THE HEATER OFF

Turn the gas control knob (see drawing) clockwise from the ON-position to the OFF-position.

If the appliance is to be shut down for a long period of time, close the isolation valves on the gas and cold water supplies.

ABOUT YOUR WATER HEATER

HOW LONG WILL THE WATER HEATER LAST?

There are a number of factors that_ will affect the length of service the heater will provide. These include the water quality, the water pressure and temperature (inlet and outlet) and the water usage pattern. However, your Vulcan water heater is supported by a comprehensive warranty.

GENERAL MAINTENANCE

The case of the appliance can be cleaned with a soft cloth and warm soapy water. Under no circumstances should abrasive materials or powders be used.

The water heater should be serviced annually by Southcorp Water Heater or their accredited service agent where genuine replacement parts are available.

Ensure that the appliance flue terminal is not obstructed in any way at any time.

SAFETY INSTRUCTIONS

For safety, your water heater is fitted with a flame failure safety device which will shut off the gas supply in the event of flame failure. This device must not be tampered with and the heater must not be operated unless this device is in working order.

Do not store chemicals or inflammable materials, or spray aerosols near this appliance.

Do not place articles on or against this appliance.

FREEZE PROTECTION

Outdoor models should be turned off (see page 11) and drained if freezing conditions are likely to occur. This will protect the heater from damage caused by ice forming in the waterways. A drain cock for th is purpose should be fitted by the installer in the cold water line between the gate valve and the heater.

Troubleshooting

COLD WATER FROM HOT TAP

Check that pilot is lit. If not, relight as per lighting instructions. With pilot alight does the main burner operate when the hot tap is turned on? Is the hot tap open enough? (minimum flow rate 3 L/m required to operate main burner).

WATER NOT HOT ENOUGH

Has the temperature selector been turned clockwise to compensate for seasonal cold water temperature changes? Check the temperature difference between the hot and cold water supply.

NO WATER FROM HOT TAP

This would indicate a restriction of the cold water supply to the appliance. Check for water flow at other taps and that the cold water supply isolation valve (see drawing page 18) is fully open.

SHOWER TEMPERATURE FLUCTUATES

The shower should be adjusted so the hot tap is fully open.

WATER PRESSURE RELIEF

Built into the water controls of this appliance is a pressure relief valve. The purpose of the valve is to protect the heater by allowing water to escape in the event of excessive pressure build-up in the watewrways.

You may see a drop or two of water from the bottom of the heater when a hot tap is suddenly turned off. However if there is a continuous dribble it may indicate that the mains water pressure is above the design pressure for the heater. If so, ask your installing plumber to fit a pressure limiting valve.

CAN’T LIGHT THE PILOT

No gas to the heater. Is the isolating cock in the gas line “OPEN”? Is there a normal gas supply to the rest of the house? Try lighting another appliance to check. If no gas -call your gas supply authority.

Vulcan Express Owners Guide

Vulcan Express Hot Water Service Manual

Vulcan Express Hot Water Technical 1.pdf

 
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