Benchmark Metropolis DGT 25 BF, Инструкция по установке и обслуживанию

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4.3 REMOVING THE
OUTER COVER
The casing may be removed completely to
facilitate boiler maintenance, as shown in
fig. 19.
Turn the panel control forward for access
to the internal components of the boiler.
4.4 ROUTINE SERVICE
To ensure continued efficient operation of
the appliance,it is recommended that it is
checked and serviced at regular intervals.
The frequency of service will depend on
the particular installation and conditions
of usage,but in general once a year
should be adequate.
It is the law that a competent person
such as a Gas Safe Register registered
engineer must carry out any service work
– Isolate the power supply and turn off the
gas isolation valve.
– Remove the outer casing and the gas bur-
ner manifold unit. Ideally use a vacuum clea-
ner and a soft brush, so as to remove any
dust particles that may have accumulated,
take care not to damage the insulation.
– Clean the heat exchanger, removing any
dust or residue from combustion. When
cleaning the heat exchanger or the bur-
ners, chemical products or steel brushes
MUST NOT BE USED. Make sure that the
tops of the burners with the holes are free
from encrustations.
– Reassemble the items removed from the
boiler, making sure to follow the correct
sequence.
– Check operation of the main burner.
– After assembly of all the gas connections,
these must be tested for tightness using or
appr opr iat e pr oducts. DO NOT USE
NAKED FLAMES.
23
ENG
IT
ES
3
2
1
Fig. 18
KEY
1 Plastic tap
2 Minimum pressure adjusting nut
3 Maximum pressure adjusting nut
2
4 x
1
Fig. 19
Codice/Code 8107910
Modello/Model METROPOLIS DGT 25 BF
Matricola/Serial n. 9999999999
PAR 1 = 01 (METANO)/ 03 (GPL)
PAR 2 = 01