1.1.7. Tender text Temperature difference control device ST-E 
for adjustable air outelts

… units Temperature difference control device 
for automatic adjustment of the discharge direction in response to the temperature difference between supply air and indoor air, suitable for adjustable air outlets from KRANTZ KOMPONENTEN fitted with 0 … 10 V modulating servomotors.
Design suitable for mounting in a switch cabinet. Automatic recognition of heating or cooling mode. 
Two different control curves, e.g. for two air volume flow rates, can be selected via an external change-over switch.
Possibility to enter non-linear control curves with 4 to maximum 15 breakpoints per control curve. 
The temperature difference control device is configured by KRANTZ KOMPONENTEN at their works according to the specific project parameters (air outlet type, servomotor, discharge height, air outlet flow rate, etc.). The input data is stored.
Fixed-position control easy to set, e.g. for heating-up.
Temperature sensors for indoor air or supply air can be plugged in either as passive sensors (supplied by KRANTZ KOMPONENTEN) or as active  0 … 10 V signals (e.g. from other systems).
A second temperature sensor for indoor air may be connected to the system for mean value determination (4 passive room sensors via external connection).

Control device suitable for controlling a group of air outlets of the same type including up to 40 outlets,
consisting of:
a sensor for supply air temperature,
a sensor for indoor air temperature, suitable for wall mounting,
a controller for driving the electric servomotors of the air outlets.

Technical data:
Supply voltage:  24 V AC +/- 10%
Frequency:  50 / 60 Hz
Power consumption:  10 VA
Permissible ambient temperature:  0...50°C
Protection for housing:  IP 20 to EN 60529

Make:	KRANTZ KOMPONENTEN
Type:	ST-E

… units Operator unit for controller, for parameter resetting and controller operation. 
It enables the mechanical contractor or system user to adapt the presettings made by the air outlet manufacturer to specific system conditions. It has a display screen for plain text. It also allows for permanent display of all relevant operating data. Where required, the operator unit can be plugged into the controller; it can also be inserted into the front panel of a switch cabinet or into a switchboard. There is no need for separate power supply. The display screen has backlighting. Alarm signal in case of failure of or short circuit at a passive sensor. Indication of past alarms. Parameters are saved in a special memory and can be reloaded where required. The display screen has 8 lines of max. 20 signs each. The languages currently available are English and German; they can be switched over on-line.
Make:	KRANTZ KOMPONENTEN
Type:	ST-BT


–  Subject to technical alteration –


YIT Germany GmbH 
KRANTZ KOMPONENTEN 
Uersfeld 24  |  D-52072 Aachen  |  Germany 
Phone:  +49 241 441-1  |  Fax:  +49 241 441-555 
info@krantz.de  |  www.krantz.de