18.04.16
Page 41 / 146
VARMAX -
Installation, Use and Maintenance
5.3. Commissioning
Before being packed up, all boilers are tested in the factory operating on
group H natural gas (type G20), during which all settings are made.
For commissioning, carry out the following operations:
1. Switch on the main power.
2. Create a request for heat via the comfort mode
using the customer interface (see chapter "3 -
Interface utilisateur" of the LMS boiler command
table instructions).
3. After starting up the burner, check the gas
tightness of the gas line connections using a
foaming product. Check combustion health using
a
fl
ue-gas analyser via a sample taken from the
fl
ue outlet (see diagram opposite).
CO
2
value range:
G20:
at Qmin: 8,3 % < CO
2
< 8,7 %
at Qmax: 8,8 % < CO
2
< 9,2 %
G31:
at Qmin: 9,8 % < CO
2
< 10,2 %
at Qmax: 10,4 % < CO
2
< 10,8 %
4. Adjust the boiler setting (refer to the table
summarising customer parameters at the end of
this manual).
!
WARNING:
Any work on a sealed element leads to loss of warranty.
fi
gure 31 - Taking a sample
Flue-gas sample
point
U0501961-#
