74 4 213 563 / 03
BOILER CONTROL T0.2 AND T2.2
Key Designation Function
4
Operating selector switch:
Summer / winter
Summer:
Only hot water in operation
Winter:
Heating and hot water in operation
5
Burner fault display Lamp is not lit = normal operation
6 Fault display
Safety temperature limiter
Lamp is not lit = normal operating lamp
lit = excess temperature (see below for
reset)
7
Boiler temperature limiter re-
set
Safety device:
The boiler is shut down if the boiler water
temperature exceeds the limit tempera-
ture.
(Reset see below)
8
Boiler temperature controller
KTR I
Temperature controller for heating basic
load
9
Boiler temperature controller
KTR II
Temperature controller water heating
10
Boiler temperature controller
ZTR
Temperature controller heating full load
11
Boiler temperature display
C
Boiler temperature is displayed
12
Flue gas temperature display Flue
gas
Flue gas temperature is displayed
13,14
Operating hours counter
Basic load (13)
Full load (14)
Number of operating hours is displayed
Pulse counter (on request)
Number of burner starts is displayed
13,14 (Alternative)
Operating hours counter
Basic load (13)
Full load (14)
Number of operating hours is displayed
Pulse counter (on request)
The number of burner starts is displayed
for 10 sec. after supply voltage has been
switched on
C
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