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3.2.2
DIEMATIC-m3 control panel
Electromechanical components
1. General ON (1) / OFF (0) switch
2. Burner alarm indicator + Reset button
This light comes on when the safety control box is in safety
lockout (out of order).
3. Switch AUTO/
/TEST-STB
AUTO: Automatic control
: Manual control
TEST-STB: Temporary action to test the safety thermostat
4. Safety thermostat with manual reset
Set to 110° C
5. Timed circuit breaker (4 A)
Display
1
Text and numerical display
2
Graphic display bar for the programme in circuit A, B or C
Light area: Reduced temperature heating period or tank load
3
disabled
Dark area: Comfort temperature heating period or tank load
4
enabled
5
Flashing cursor showing the current time
Number display (current time, adjusted values, parameters,
6
etc.)
7
Number of the boiler for which the parameters are displayed
The arrows flash when setting values can be modified using
8
the + and - keys
9
Circuit operation symbols
Opening the 3-way valve
Closing the 3-way valve
Displayed circuit pump on
A B C
Name of the circuit displayed
09/03/2016 - 300011506-02
6. Pump shutdown switch
7. Boiler thermostat (30 to 90 °C)
8. Boiler thermometer
9. Switch for selecting the number of burner stages
(2-stage boilers)
10. Connector USB
14. Boiler heat curve
15. Flap
16. Display
Arrows indicating the chosen time programme (P1, P2, P3 or
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P4) for the circuit displayed, A, B, C, or the activation of the
manual summer mode
Symbols indicating that the following inputs/outputs are
11
active
DHW load pump on
Summer mode (Automatic / Manual)
Burner on
Operation with modulating burner
Not used
Operation with 2-stage burner
Burner on with 1 stage
Burner on with 2 stages
DTG 230
3. Description
7
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