7. MAINTENANCE OPERATIONS
The common maintenance programme features 2 types of work :
• Maintenance which is carried out every year
• In-depth maintenance which is carried out every 3 years.
The table below contains the actions to be carried out according to the
type of maintenance operation.
These operations must be carried out by a qualified professional in all
cases.
A specific check of the safety valve by operating it and checking the
water flow should be carried out at least once a month.
WARNING:
This storage tank's earth continuity is provided by link cables
(green/yellow) and specific holding screws. During any disassembly
operations, make sure that the cables in question are reconnected;
you MUST also reuse the original holding screws.
Before performing the following operations:
•
Switch off the main circuit breaker.
• Close the gas supply isolation valve.
N° of
paragraph to
consult
Servicing
every
year
every 3
years
7.1
Descaling and cleaning of the storage tank
X
7.2
Inspection of ignition and ionization electrodes
X
7.3
Cleaning siphons for condensate evacuation
X
7.4
Verification of tightness on combustion circuit
X
7.5
Verification of combustion quality
X
7.6
Checking the gas valve setting
X
7.7
Checking the condition of the gas manifold coating
Burner cleaning and sealing gaskets exchange
Checking the evacuation in the by-pass
X
13.01.2023
Page 43 / 104
DORCHESTER DR-SG -
Installation, Operation and Maintenance