Solar Hot Water Element and Thermostat

Electric booster element with thermostat for solar hot water storage tanks. On a solar hot water system the element is the electric boost that heats the tank when the collectors have not brought the water up to temperature - overnight, in winter, or through a run of overcast days. The thermostat is what switches it off at the set temperature.

Specification

• Thread: 1 1/4 inch BSP
• Rating: 2400 watt
• Voltage: 220 to 240 volt
• Current draw at 240V: approximately 10 amp
• Type: storage tank immersion element with thermostat

Where This Is Used

This is the electric booster element in a solar hot water storage cylinder. 1 1/4 inch BSP is the standard element thread used on Australian domestic hot water storage tanks, so this element is the common replacement across solar and electric storage cylinders that use that thread and a 2400 watt boost.

It is supplied for Sunray solar hot water systems, which are made by Powas Engineering. Powas build under the Sunray name and also supply other badges, so the same element turns up in a number of Australian solar hot water tanks.

How to check it fits your tank. Three things must match: the thread size (1 1/4 inch BSP), the wattage (2400W - do not fit a higher wattage than the tank and the circuit are rated for), and the element length, which must clear the inside of the cylinder. Measure the immersed length of the element you are removing, or send us a photo of it and the tank data plate and we will confirm before we dispatch.

Symptoms Of A Failed Element Or Thermostat

• No hot water after a run of cloudy days, or none in the morning
• Water lukewarm only - solar gain but no electric boost
• Booster circuit breaker or RCD trips when the boost switches on
• Water far too hot, or boiling and lifting the relief valve - failed thermostat
• Element tests open circuit, or short to the tank body
• Heavy scale or corrosion visible on the removed element

Fitting Notes - Read Before Ordering

This is a mains-voltage part in a pressurised water vessel. It must be fitted by a licensed electrician, and in most Australian states the water side must be handled by a licensed plumber. The tank has to be isolated, the circuit isolated and proved dead, and the tank drained before the element comes out. Replace the element gasket at the same time, and check the sacrificial anode while the tank is drained - if the anode is spent the new element will not last either.

SALIN is not responsible for any possible damage caused by misselection and incorrect installation of the spare parts.

All electrical items must be fitted by a qualified electrician.

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