User Manual

4/19
Building Technologies CC1N7761en
21.08.2018
Commissioning notes
· Continuous display of the program sequence in the viewing window:
It is also possible to program the unit by means of a changeover link (UL3) in a way
that the programming mechanism does not stop in case of lockout, but that it runs
to the end of the program. The only component that receives power during that
period of time is the fan for postpurging (connected to terminal 17)
· The motor of the programming mechanism can be switched off (simplifies burner
adjustments)
· The camshaft can be rotated manually
· For setting instructions, refer to «Adjustment facilities on the unit»
· When commissioning the plant or when carrying out maintenance work, make the
following checks:
Safety check Anticipated response
a) Burner startup with flame detector darkened Lockout at the end of
«TSA»
b) Burner startup with flame detector exposed to
extraneous light
Lockout after no more than
40 seconds
c) Burner operation with simulated loss of flame Immediate lockout
d) Burner startup with open-circuit of air pressure
switch (not with atmospheric burners)
Lockout at the end of the
specified time «t10»
e) Burner operation with simulated air pressure
failure (not with atmospheric burners)
Immediate lockout