Tuesday, 2 September 2008

Heater Install

Here are the details of the heater install.

The heater is designed to run 4 ceramic elements in parallel at 240VAC

I will be running the 4 elements in series at 600VDC. If they were purely resistive this would amount to about 800W.

But these are PTC so I expect the output will be a bit higher.

The element has been installed in high temperature RTV compound into the main air duct from the fan.

The relays for the heater are only able to be energised when the fan is on.

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A thermal cut-out on the heater, connected to the relays coil will also be installed for protection in case of over heating.

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