The latest Horstmann Controls series 3 Electronic 7 immersion heater control now has a security code feature that enables pre-determind settings to be preserved and prevents unauthorised alterations which could affect the timer making best use of discounted off-peak electricity charges.
Fully compatible with all utility tariffs and very simple to programme using step-by-step on screen programming, the Electronic 7 features a large back lit display and is fully interchangeable with earlier versions of the controller using plug-in connectors to prevent the need to change the original back box.
The new security lock ensures that pre-set tariff data cannot be altered - a particularly useful feature in installations such as rented accommodation, halls of residence and housing associations where optimising the utility company off peak charges is important.
With the security lock enabled the householder can still view the settings and the boost button remains operative but the core on/off settings cannot be altered after being set by the installer.
The Horstmann Electronic 7 family of controls has for many years been the UK's all time best selling range of immersion heater controls. Standard features include an automatic clock that is pre-set on manufacture and which automatically adjusts to accommodate GMT/BST summer/winter time changes.
There is a long life battery which will maintain the clock and display settings and also enables time settings to be switched with the mains supply disconnected. This should be sufficient to cover all unexpected interruptions during the life of the control.
Electronic 7 is compatible with all utility company tariffs that keep to Greenwich Mean Time (GMT) or that vary with British Summer Time (BST). It allows for up to three secure off-peak heating periods every 24 hours, making maximum use of electricity when tariffs are cheaper.
For more information on the complete Horstmann range www.horstmann.co.uk
