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© 2016 OJ Electronics A/S
PLI : Power Limit 1/2
This thermostat complies with EN 50559 (VDE 0705-559) for
electrical floor heating . The regulation applies to electrical
floor heating with a maximum floor weight of 4 kN/m² . To
ensure that hotspots due to unintentionally covering up
part of the surface are avoided, the heating function can be
time-limited as per EN/DIN .
Note that this function is not applicable to other heating
applications such as wall and/or ceiling heating . If it can be
foreseen in advance that unintentional covering up of part
of a floor might occur, then it is important to assess the
correct period of time for which the floor heating must be
time-limited .
The heating can be limited by using a set number of
minutes per hour . The thermostat will then divide the given
number of minutes per hour up into 3 periods, depending
on the thermostat’s actual PWM cycle .
Example:
If obstacles could be present that cover up a part of the
floor, then the heating might need to be limited by some
number of minutes so as to avoid hotspots in the floor .
If you want the thermostat to heat a maximum of 90% of
the time, then the thermostat should be limited by 10% .
Ten percent of one hour is 6 minutes . Enter 6 min . in the PLI
menu in order to lower the heating by 10% .
