15
5. KRONOS GA11
5.1 WEEKLY-PROGRAMMING DIGITAL
CHRONOTHERMOSTAT FOR THE REMOTE
CONTROL OF HOT AIR GENERATORS
THROUGH INTERFACE BOARD
The digital chronothermostat Brahma Kronos series
integrates the functions of room temperature control
and remote control of hot air generators in a single
interface, specially designed to make available all its
functionalities in intuitive mode.
Control of the heating system is complete, allowing to
manage the parameters of more air generators, with
the related control boards connected in cascade, and
the eventual unlock.
It is possible to choose beetween different modes of
thermoregulation, even using an external probe
(connected to the hot air generator) for climatic
compensation.
Weekly programmation is particularly versatile
because it provides 4 temperature levels settable and
no restriction number of time slots per day, consisting
of individual intervals equal to a quarter of an hour
and can be viewed on the appropriate graph of the
daily program.
The communication between the chronothermostat
(master) and the control board (slave) of hot air
generators takes place by means of a two-wire cable.
Particulary, the data, between the chronothermostat
and the control board of the first generator, are
exchanged with the communication protocol
compatible OpenTherm ™ v3.0 Smart Power Mode
- Medium Power.
5.2 GENERAL TECHNICAL DATA
- Brahma design
- graphic LCD 128x64 pixel
- backlight timer 20 seconds
- LED for diagnostics/signaling
- 7 variable function keys
- weekly programming
- 4 temperature levels (T0, T1, T2, T3)
- resolution (0,5°C temperature set)
- resolution (0,1°C temperature read)
- minimum interval programming: 15 minutes
- SELV insulation (Safety Extra Low Voltage)
- bipolar connection, non-polarized
- protocol v3.0 Smart Power Mode – Medium Power
5.3 TECHNICAL DATA OF THE
CHRONOTHERMOSTAT
Operating temperature:
0°C +50°C
Humidity:
95% maximum at 40°C
Power supply:
low voltage (3V), obtained from
communication with the hot air generator control board
Protection degree:
IP30
Dimensions:
140x90x32 mm
Compliance:
directive 2004/108/CE (EMC), directive
2006/95/CE (LVD).
Description of the remote control unit
graphic display (LCD)
buttons to select
or change the
function
parameters
buttons to
increase and
decrease
temperatures and
parameters
hole for
access to the
reset button
multifunction button with LED
function buttons
(il comando attivo è indicato, di volta in volta, sul display grafico)
Fig. 5