Operation Manual

8
GT 120 - GTU C 120 - GT 220 21/09/06 - 300003691-001-F
2.3 Control panel DIEMATIC 3
Electromechanical components
Display
4
A
M
P
C000142_07
1
0 2 4 6 8 1012141618202224
A
7
4
2
3 5
6
SUNDAY
-04
1 General ON
8
/ OFF
7
switch
2 Alarm indicator
3 Switch AUTO/
!
4 TEST STB button
5 Safety thermostat with manual reset (110 °C)
6 Timed circuit breaker (6 A)
7 Operating light
1 Text and numerical display
2 Graphic display bar for the programme in circuit A, B or C
3 Light area: Reduced temperature heating period or tank load
disabled
4 Dark area: Comfort temperature heating period or tank load
enabled
5 Flashing cursor showing the current time
6 Number display (current time, adjusted values, parameters,
etc.)
7 Active programme display, P1, P2, P3, P4
or
E : Summer mode activated
8 The arrows flash when setting values can be modified using
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
10 Symbol displayed above the active operating mode
11 Symbols indicating that the following inputs/outputs are
active

DHW load pump on
#
Summer mode
T
Not available
D
Burner on
With optional package AD217:
` Operation with modulating burner
Y
Burner on with an increase in the output level
X
Burner on with a reduction in the output level
D
Burner on with a constant level
` Operation with 2-stage burner
D
Burner on with 1 stage
Y
Burner on with 2 stages