Greater operating range for radio roomstats

A change in operating frequency means that the latest models of Invensys Climate Controls' innovative Digistat RF roomstats - which use radio signals rather than wires for the link between the roomstat and the boiler controls - now use a stronger signal, and, therefore, offer even greater operating range. This benefit is particularly valuable in large buildings, and those with steel frames which tend to absorb radio waves. In addition, the new operating frequency of 433MHz permits more coding options, which allows large numbers of Digistat RF roomstats to operate in close proximity with no risk of mutual interference.

This makes the new units an ideal choice for new build and refurbishment projects in commercial and domestic multi-occupancy buildings.

As a result of these enhancements, virtually every application can now benefit from roomstat installation without the cost and inconvenience of channelling wiring into walls, and without the problem of damaging existing room decorations.

To allow the new products to be clearly distinguished from older units which operate at 418MHz, all 433MHz units will be branded Drayton.

Digistat RF models for 418MHz operation will remain available as replacements, and will continue to carry the ACL-Drayton brand.

Products which have been upgraded to use the new frequency include the Digistat RF1 which is a high-precision digital thermostat only, together with RF2 and RF3 models which additionally incorporate programme timers with 24-hour and 7-day options, respectively.

The new Digistat RF3i units, which feature an integral self-learning optimum-start facility, have been supplied for 433MHz operation since their launch.

All Invensys Climate Controls wireless roomstats feature large liquid crystal display panels which provide a readout of actual room temperature, and the RF2, RF3 and RF3i models also display the programme status and time of day.

Pushbutton controls make setting a quick and simple task.

A common single channel receiver is used with all types of transmitter.

The SCR receiver requires a 230V supply which is normally derived from the boiler or existing programmer.