Inspection - Viessmann VITOMAX 200-HS Operating And Service Instructions

Inspection

Entering the steam boiler
Prior to entering the steam boiler, pipe
connections (steam, feed and drain
facilities) to the operational boiler must
be securely and visibly separated by
means of adequately strong dummy
flanges or by removing pipe sections. If
on pipework with welded-in or seal-wel-
ded fittings the break is made by in-line
shut-off facilities, the intermediate con-
necting device that connects to the out-
door air must be opened. These shut-off
devices must be locked and secured
against unauthorised activation. Remov-
ing the hand wheels from these shut-off
devices is not enough. Warning signs:
"Danger! Persons inside the steam
boiler" must be affixed to the shut-off
devices in a clearly visible location, so
that the signs cannot be easily removed.
Removing the warning signs is only per-
mitted with the agreement of the works
manager. Steam boiler and flues must
be well ventilated.
The entry into the steam boiler must be
explicitly requested by the person with
the appropriate authority. The entry must
be supervised. Prior to the safety meas-
ures being removed, a person with
appropriate authority must ensure that
no one is left inside the above parts of
the system.
Repairs and inspection
During the entry into the steam boiler
and flues, electrical equipment may only
be used if, including its cables and leads,
it complies with the relevant safety reg-
ulations and has been provided by the
user or their agents for work inside the
steam boiler. Lamps must only be oper-
ated at safety voltages of up to 42 V. The
same regulation applies to electrical
tools. These may, however, be operated
with higher voltages of up to 380 V, sub-
ject to their supply being routed through
an isolating transformer. LV and isolating
transformers must be located outside the
steam boiler.
Inspections
The type and interval of inspections
depends on the regulations that apply in
the country of installation.
The following periods are suggested in
the declaration of conformity:
External inspec-
tion of the system: annually
Internal inspection
of the system:
Repeated pres-
sure test:
every three years
every nine years
(max. test pressure
in accordance with
the initial pressure
test)
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