TC 1, TC 2, TC 3 · Edition 07.22
EN-8
8 CoMMIssIonInG
8.1 Indicators and operating controls
1
2
Power
LeD
Meaning
Power
Power supply
Operating signal
1
Valve 1
2
Valve 2
Reset button
The LEDs can display messages using three colours
(green, yellow, red) and permanent or flashing light
:
LeD
Message/operating status
Power
green
Power supply OK
yellow
TC is ready for operation;
safety interlock* input signal
interrupted
green
TC is ready for operation;
active safety interlock* input
signal
1
green
V1 is tight
1
yellow
V1 is untested
1
yellow
Tightness test is running on
V1
1
red
V1 is leaking
2
green
V2 is tight
2
yellow
V2 is untested
2
yellow
Tightness test is running on
V2
2
red
V2 is leaking
All
yellow
Initialization
* Safety interlock = linking of all the relevant safety-related
control and switching equipment for the use of the
application. The burner start enable signal is issued
via the safety interlock output (terminal 6).
➔
For further messages, see page 8 (9 Assistance
in the event of malfunction).
8.2 switching on the mains voltage
➔
All the LEDs will be lit in yellow for 1 s when the
mains voltage has been switched on. The TC is in
the initialization phase.
➔
The test starts according to the test instant (Mode)
which has been set.
8.3 During the test
Mode 1 or Mode 3, test before burner start-up:
Voltage at terminal 10 (thermostat/start-up signal
).
Or
Mode 2, test after burner run:
The TC shows the last operating status. In the
case of untested valves, the
1
and
2
LEDs
are yellow. There is mains voltage at terminal 1 and
renewed test after switching off the voltage to termi-
nal 10 (thermostat/start-up signal ).
➔
During the test, the
1
and
2
LEDs will flash
yellow.
8.4 After the test
The
1
and
2
LEDs are green:
Both valves are tight.
Mode 1 or Mode 3: the enable signal is issued via
terminal 6 when voltage is applied to terminal 5.
Or
Mode 2: the enable signal is issued via terminal 6
when voltage is applied to terminals 10 and 5.
The
1
or
2
LED is red:
A valve is leaking.
Voltage at terminal 12. A fault signal is output.
8.5 Power failure
If the power fails briefly during the test or during oper-
ation, the tightness test will restart in accordance with
the test procedure described.
If there is a fault message, the fault is displayed again
after a power failure.
9 AssIstAnCe In tHe eVent oF MAL-
FUnCtIon
DAnGeR
Electric shocks can be fatal!
– Before working on possible live components,
ensure the unit is disconnected from the power
supply.
WARnInG
To avoid harm to persons and damage to the unit,
please observe the following:
– Fault-clearance must only be undertaken by
authorized trained personnel.
– (Remote) resets may only be conducted by
authorized trained personnel.
➔
Faults may be cleared only using the measures
described below.
➔
Press the reset button to test whether the TC re-
starts.
➔
If the tightness control will not start even though
all faults have been remedied, remove the entire
TC (in the case of TC 3, including auxiliary valves
and corresponding valve block) and send it to the
manufacturer for inspection.
