Step warmfloor DIGI-LUX Installation & Operation Manual

Physical Description

The DIGI-LUX Electronic Thermostat / Regulator is a zone control device specially designed for
use with the STEP Warmfloor™ radiant heat system. The DIGI-LUX provides a pulsed output
that complements the self-regulating nature of the STEP Warmfloor™ heating elements to offer
the homeowner the highest energy efficiency while providing better zoned control over personal
comfort.
The DIGI-LUX consists of two pieces (See Figure A):
Thermostat The thermostat is the operator interface for the DIGI-LUX. It
is designed to be flush wall mounted in a place that will be
most representative of the zone it controls. The thermostat
consists of a digital display that indicates the measured air
temperature, a button for changing the control set point and
the air temperature sensor. Air temperature is measured
every 12-15 min. by the thermostat's microprocessor, which
determines the amount of pulsing (system on/off) needed
for each subsequent interval. This signal controls the
regulator, and switches the regulator on/off as needed.
Regulator The regulator is an intelligent switch that enables/disables
the line voltage in such a way that switching/pulsing does
not harm the transformer(s). It is designed to be surface
mounted adjacent to the transformer(s) that it pulses. The
regulator consists of a printed circuit board mounted inside
of a junction box w/ heat sink. Each regulator is designed to
handle up to 2,500W of load.
The thermostat and regulator are connected together using a 20 foot length of 4 conductor cable that is supplied with each
regulator. For control of a zone with a load larger than 2,500W, up to 4 regulators can be connected to one thermostat for a total
controlled load of 10,000W.
DIGI-LUX™ Electronic
Thermostat / Regulator
Installation & Operation Manual
Figure A
Front view of the DIGI-LUX Thermostat and Regulator
1 www.warmfloor.com