11002347AA
date of change: 20.08.2014
Page: 5/19
2.3 Connecting and Safety instructions
- Please read before connecting! -
•
For safety reasons the control unit
FR4.1
shall not be used for applications different from those
described in this manual.
•
Before use please check the limits of this control unit as well as its applications.
Safety instructions
Before connecting the unit please check wether the supply voltage is correct. Please pay atten-
tion to the prescribed ambient conditions respectively their humidity and temperature limits.
Should these conditions not be followed, malfunctions can not be excluded.
Attention:
Before switching-on the unit, please check once again correct connection.
Never run this unit without housing.
Please install the sensor where it is not accessible for the end customer
Please consider the maximum current which can be applied to each relay (see technical data /
point 1).
Please ensure that all sensors are installed with enough distance to under-voltage cables. By
this, distorted temperature measurements can be avoided and the unit is protected from voltage
interspersion by the sensor-inputs.
Installation and mounting
The control unit
FR4.1
shall be mounted on panel in a
71x29 mm
hole and fixed by the fastening
frame.
For a faultless operation the ambient temperature should be between 0 und 50 °C. Please avoid
intense vibration, aggressive gases, high fouling or humidity.
You have to care for enough air circulation at the air slots.
Electrical connections
The control unit
FR4.1
is provided with screw terminals for a wire diameter of
≤
2,5mm
2
. Before
voltage supply is connected please make sure that the auxiliary energy complies with the instru-
ment’s requirements. Please ensure that the inlet cables are installed with enough distance to
under-voltage cables.
Do not exceed the maximum voltage allowed on each relay.
Sensor connections
The sensor peak should be mounted upwards in order to avoid accumulation of liquids or con-
dense water. We recommend to place the thermostat away from air flow in order to have a cor-
rect measurement of the average room temperature.
These instructions contain all necessary information for installation of the control unit. In case you
need further information respectively explanation our technical after-sales service will be at your
disposal (
℡
06691/76 –124, or
).
In the course of further developments we reserve the right to technical modifications without
prenotice. Guarantee and liability conditions of Konvekta AG’s general business conditions are not
enlarged by the above notes. Indications and photos should neither be copied and circulated nor
used for competitor’s purposes. All rights according to the copyright remain expressly reserved.
Manufacturer:
KONVEKTA AG, P.O. Box 2280, 34607 Schwalmstadt, Germany
