Shutting Down The System - Viessmann MatriX Service Instructions Manual

Further details regarding the individual steps
04. Switch OFF the main isolator.
Note
Test cable no.1 is required when
checking with the Testomatik-Gas.
You can also carry out this test with
a multimeter.
05. Push ionisation current cable plug
C into adaptor D.
06. Push test cable socket B onto the
ionisation electrode.
07. Switch the main isolator ON and
press reset.
08. Check the ionisation current.
Note
Approx. 2 to 3 s after the gas valve
has been opened and during oper-
ation, the ionisation current should
μ A.
be at least 3

Shutting down the system

1. Switch OFF the main isolator or the
power supply and safeguard against
unauthorised reconnection.
Commissioning, inspection, maintenance
09. Record the actual value in the report
(on page 45).
10. Switch the main isolator OFF,
remove the test equipment and
reconnect the ionisation cable plug-
in connectors.
11. Switch ON the main isolator.
2. Pull connecting plugs fA and lÖ from
the burner.
3. Close the gas shut-off valve.
(cont.)
15