1
User Manual
ALFA 20 and
ALFANET 20
Thermometer
VDH doc: 070697
Versie: v1.1
Datum: 03-10-2008
Software: ......_ALFA 10/20/30
File: Do070697.wp8
Range: See Sticker
* Function.
The
ALFA(NET) 20
is a digital thermostat for panel mounting.
The
ALFA
NET
20
has a RS 485 network connection so it can be read out and
adjusted on the Alfanet.
* Installation.
On the topside of the
ALFA(NET) 20
is shown how the sensor, power supply and
network have to be connected.
After connecting the
ALFA(NET) 20
to the power supply, a self-test function is
started. As this test is finished, the measured temperature appears in the display.
When the relay is activated, the led 'on' will light-up in the display.
* Control.
The
ALFA(NET) 20
Thermostat can be controlled by three
hidden push buttons on the front.
These keys are:
SET
- view / change the setpoint.
DOWN
- decrease the setpoint.
UP
- increase the setpoint.