17040952—ENG
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INSTALLATION
INSTRUCTIONS
OPTION
952
:
Thermostat
Kronos
GA11
DESCRIPTION
The Kronos GA11 is a weekly programming digital chronothermostat
used for the remote control of the ULSA gas‐fired air heaters.
ATTENTION : Before turning on, check the cables (incorrect wiring
may damage the thermostat and compromise safety.
Connect and disconnect the control sytem only in absence of voltage.
Avoid exposing to dripping water.
GENERAL
FEATURES
‐
Graphic LCD display (128x64 px)
‐
Backlight timer 20 seconds
‐
LED for diagnostics/signaling
‐
7 variabele 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’‘
‐
SELV insulation (Safety Extra Low
Voltage)
‐
Bi‐polar connection, non‐polarized
TECHNICAL
DATA
‐
Operating temperature : 0°C +50°C
‐
Humidity : 95% maximum at 40°C
‐
Power sypply : low voltage (3V) (via communication with control board of the air heater)
‐
Protection degree : IP30
‐
Dimensions : 140x90x32mm
‐
Compliance : directive 2004/108/CE (EMC) / directive 2006/95/CE (LVD)
INSTRUCTIONS
FOR
USE
The buttons have any versatile utilization depending on the selected menu. The use of buttons is facilitated by the
indications with text, icons and other graphics that appear on the display.
The vertical buttons on the left : used to navigate the setup menu or to select the parameters
The vertical buttons on the right : used to vary temperature and function increase/decrease (+/‐)
The horizontal buttons at the bottom : used to confirm or cancel the settings or to enter/exit the submenus
The center button : used for special functions (e.g. unlock heater)
Under the center button there is a LED giving following information :
‐
Continuous red LED : error or no communication with the heater
‐
Intermittent red LED : lockout heater
‐
Intermittent yellow LED : anomaly
‐
Continuous green LED : chronothermostat is resuming work after power failure
®
Figure 1
