Installation Instructions

TECHNICAL MANUAL GS 4x.10 KNX – ENGLISH
30
8. Temperature control
8.1 Temperature control – heating and cooling
Designation
Options
Description
Select heating and/or
cooling
Disabled
Heating
Cooling
Heating and cooling
Temperature controller disabled.
Operating mode: Heating only.
Operating mode: Cooling only.
Operating mode: Heating and cooling.
Extra level heating /
Extra level cooling
Disabled
Enabled
Extra level heating / cooling disabled.
In addition to the main level (e.g. underfloor heating) an extra level (e.g. electric heating) can be helpful for lazy
systems. It can shorten the slow heat-up phase of an underfloor heating. You can choose between a PI or two-
stage controller for the additional object.
Guide heating /
Guide cooling
Disabled
Enabled
Guide heating / cooling disabled.
With the parameter guiding it is possible to adjust the set point linearly depending on any reference
variable which is captured through an external sensor. In general, an outdoor temperature reset control is
realized. With an appropriate parameterization, the constant raising or lowering of the set value is
possible. The parameterization is carried-out together with the definition of the set points.
PI control: A PI control is a constant control that comprises a
proportional part (P-part) and an integral share (I-share). The size of the
P-part is indicated in Kelvin, the I-share in minutes. At a constant PI
control, the manipulated variables are operated in proportional steps up
to a maximum value.
2-stage-control: A two-stage control only sends two conditions for the
manipulated variable, on and off. The control turns on when falling
below a desired temperature and turns off when exceeding it. Set point
and switching hysteresis are defined in advance.
Main level and Extra level: In addition to the main level (e.g.
underfloor heating) an extra level (e.g. electric heating) can be helpful
for slow systems controlled by main level. This can shorten in the
mentioned example the slow heat-up phase of an underfloor heating.
You can choose between a PI or two-stage controller for the additional
object.