2
Safety information!
Expert electricians only may open this device in due compliance with the wiring diagram shown in the housing cover / represented in the corresponding
operating instructions. In doing so, the existing safety regulations need to be observed and complied with. The company charged with the installation of the
device must, after the completion of the installation works, instruct the user of the control system into its functions and in how to operate it correctly. These
operating instructions must be kept at a place that can be accessed freely by the operating and/or servicing personnel in charge.
1. Application
This room temperature controller has been specially devised for the control and supervision of temperatures in offices, living spaces and hotels. Concerning
other applications not to be foreseen by the manufacturer of this device, the safety standards applying to these applications need to be followed and adhered
to. Regarding the aptitude of the device for any such application, please refer to section 8. Warranty.
2. Functioning
An internal bimetal sensor in the room temperature controller captures the currently existing room temperature. It controls the related heating system in
accordance with the adjusted set value.
Thermal recirculation
When connecting heating loads ranging from 0.5 to 1A (terminal 4), a thermal recirculation function will excite the controller early enough to deactivate the
controlled system as, during the heating procedure, the device usually captures the actually prevailing room temperature at a rather late point. When
connecting heating loads ranging from 1 to 5A (terminal 2), this excitation will be triggered through the self-heating induced by the load current.
Limitation of the setting range
The mobile setting elements located underneath of the knob enable to delimit the setting range mechanically (see section 6.).
3. Mounting/installation
To facilitate its installation, the controller is delivered in opened condition. It is recommended to install the device on an UP box. The device can also be
mounted on a non-conductible, plane and solid surface. The opening and closing of the housing takes place as described in section 6. Remove the control
knob first, then press the small hook inwards by means of a slot screwdriver and open the controller cover by folding it down. The venting slots must not be
covered, as otherwise there is danger that the control operations performed by the device become incorrect. Depending on the heating load, the incoming
phase is either to be connected to the terminal 2 (1 … 5A) or to the terminal 4 (0.5 … 1A).
Caution: The device is able to resist to the types of dirt or dust that normally occur in offices and living spaces. Excessive volumes of dust and/or dirt produced
during the installation or during renovation works may soil the contacts and can lead to a breakdown of the device. An electrically qualified person should clean
the contacts in this case. This can be done by blowing off the dust or using a brush or other appropriate means.
4. Technical data
Sensing element:
bimetal sensor, type 1C
(break contact type)
Operating voltage:
230V, 50Hz
Switching capacity:
0
.5 … 1A or 1 … 5A (see section 7.
Connection diagram)
Control range:
5 … 30°C
Switching difference:
approx. 0.5K (load-controlled)
Scale:
numerical scale ( 2 3 ● 5 6)
Max. admissible temperature
changing speed
of the controlled system:
4K/h
Degree of protection:
IP30 (after conforming installation)
Protection class:
II (after conforming installation)
Max. admissible air moisture:
95% RH, non-condensing
Housing material and colour:
plastic (ABS), pure white
(similar to RAL 9010)
5. Terminal and control symbols
6. Installation information
7. Dimensioned drawing / Connection diagram / Mounting information
8. Warranty
The technical data specified in these instructions have been determined under laboratory conditions and in compliance with generally approved test
regulations, in particular DIN standards. Technical characteristics can only be warranted to this extent. The testing with regard to the qualification and suitability
for the client’s intended application or the use under service conditions shall be the client’s own duty. We refuse to grant any warranty with regard thereto.
Subject to change without notice.
Symbol
Explanation
Heating output
Frost protection (approx. 5°C, scale)
●
Well-being temperature (well-being point)
Element for the setting
of the maximum
temperature value
Element for the setting
of the maximum
temperature value
RTBSB-001.500 - Two-wire room temperature controller with internal bimetal sensor
