Advertisement
Quick Links
KRONOS GA11
WEEKLY-PROGRAMMING DIGITAL
CHRONOTHERMOSTAT FOR THE
REMOTE CONTROL OF HOT AIR
GENERATORS THROUGH BRAHMA
INTERFACE BOARD
22995_r02
APPLICATION
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
(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.
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
TECHNICAL DATA OF THE CHRONOTHERMOSTAT
Operating temperature: 0°C +50°C
Humidity: 95% maximum at 40°C
Power
supply:
low
communication with the hot air generator control board
Protection degree: IP30
Dimensions: 140x90x32 mm
Compliance: directive 2014/30/CE (EMC)
the
chronothermostat
voltage
(3V),
obtained
from
1/10
Advertisement
Summary of Contents for BRAHMA KRONOS GA11
- Page 1 KRONOS GA11 WEEKLY-PROGRAMMING DIGITAL APPLICATION CHRONOTHERMOSTAT FOR THE The digital chronothermostat Brahma Kronos series REMOTE CONTROL OF HOT AIR integrates the functions of room temperature control and GENERATORS THROUGH BRAHMA remote control of hot air generators in a single interface,...
- Page 2 Figure 1: description of the remote control unit INSTRUCTION FOR USE The Kronos GA11 provides the user with a graphic LCD dot-matrix, a series of buttons in silicon rubber, and an LED indicator located below a button plastic transparent to display the parameters and interact with the heating system.
- Page 3 BASE FUNCTION Here there are the messages that may appear, alongside with their meanings: FIRST LEVEL MENU Starting… Kronos is in the process of connection to the hot air generators. When chronothermostat connected Ambient probe error Room temperature sensor on Kronos damaged. thermoregulation board, the following screen appears on Fault code xxx There is an anomaly or a lockout on the hot air...
- Page 4 For more details see the next section, in particular the description of the submenu "Thermoregulation". Pushing again button ▼ is proposed the submenu “PARAMETERS MENU” Pushing again button ▼ you switch to another option: The submenu "PARAMETERS MENU" (described in the relevant section) allows you to see the parameters of the hot air generators and allows you to manage advanced functions, such as transparent parameters (TSP) and...
- Page 5 Choosing the option “Day program” you enter in the In case it is already active the automatic mode, it is following screen. indifferent push NO or OK. MANAGEMENT CHRONOTHERMOSTAT SETTING MENU This section describes the submenu “SETTING MENU” This submenu allows you to manage temperature control environment, the weekly program, the time setting and the language choosing.
- Page 6 In the third step you select the ending time. The final time As seen above, this setting is required when you first start can not be less than initial time, selecting two coincident or after a reset of the chronothermostat, then it can be values for initial time and final time, the daily schedule is changed at will.
- Page 7 Example 2: Ti = 20,0ºC Max = 100% d = 0,9ºC hysteresis = 0,4ºC (hysteresis can vary between 0,1ºC e diff / 2 = 0,4ºC) When Ta ≥ 20ºC then P = 0, and the generators are turned off. A restart occurs if Ta ≤ (Ti – hysteresis) = 19,6ºC; in particular if 19,1ºC <...
- Page 8 Refer to the documentation of the control board generator, to understand the meaning of Tset. The last two items of the "MENU PARAMETERS" are useful functions during installation and maintenance of the control system. The item "OT monitor" is dedicated to advanced diagnostics OpenTherm communication, as it makes visible the data exchanged between chrothermostat and control board and shows the analysis of the communication made...
- Page 9 Figure leakage from damaging the chronothermostat itself. Finally, please note that Kronos GA11 does not provide any Then is possible to wire the circuit board unit using the information about the presence of batteries or their appropriate terminal, regardless of the polarity (the two charging status.
- Page 10 Kronos GA11 is available in white, shown on page 1, or black, as the image. ATTENTION -> Company Brahma S.p.A. takes no responsibility for any damage resulting from Customer tampering with the device BRAHMA S.p.A. Via del Pontiere, 31 37045 Legnago (VR) Subject to amendments without notice Tel.
Need help?
Do you have a question about the KRONOS GA11 and is the answer not in the manual?
Questions and answers