User Manual
Energy-efficient room temperature control
Room temperature controllers (RTC) UP 237K
and UP 254K make it easy to efficiently
heat and/or cool spaces. LEDs indicate the
plant’s operating and fault states inclu-
ding their causes, enabling room users to
respond quickly to reestablish energy-
optimal operation. Automatic changeover
of the system to energy-efficient protec-
tion mode in case a window was left open
saves heating or cooling costs. Also, if a
dew point alarm is set off in cooling
mode, the cooling valve is closed, preven-
ting condensation on the chilled ceiling.
Totally flexible
The RTC are very flexible when it comes
to room usage. Two interchangeable set-
point setting knobs are available, one
with a scale in °C and one with a wide-
ning line +/–. The control function can be
parameterized to provide heating,
Answers for infrastructure.
cooling or heating/cooling. What’s more,
two-stage heating and/or cooling is possi-
ble. The RTC can operate in 2-position or
modulating mode. The bus signal for the
actuator can be adapted. KNX as an open
communication standard facilitates integ-
ration into building automation and
control systems.
Simply convenient to use
The RTC are easy to install and compa-
tible with the DELTA frames*.
The large, interchangeable setpoint set-
ting knob ensures reliable, intuitive ope-
ration. Operating mode and manual
actions that prevent efficient operation
are indicated by LEDs. The setting knob
shows whether the setpoint is changed in
°C or +/–. If a window is left open, the
operating mode changes automatically to
protection.
Heating and cooling the
flexible and convenient way
GAMMA room temperature controllers featuring reliable operation and individual
parameterization – designed for use in future-oriented electrical installations
Highlights
■
Energy-efficient operation
thanks to protection mode
when window is left open,
including display of cause
■
Flexibility thanks to inter-
changeable setpoint setting
knob (absolute/relative),
parameter settings, and integ-
ration into building auto-
mation and control systems
■
Reliable and convenient ope-
ration thanks to indication of
manual interventions
■
Straightforward installation –
matching DELTA frame
program
* i-system and DELTA style
The world-wide
standard for
home and
building control