Ambirad ARO Series Manual de instalação e funcionamento - Página 11

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Ambirad ARO Series Manual de instalação e funcionamento
11 Routine servicing and fault
finding
Radiant tube inspection.
Brush away any dust on the exterior of the
emitter tubes.
To remove the burner
Disconnect electrical supply by slackening
two M8 bolts, twist burner and remove.
Inspect the emitter tubes internally. If
there is any appreciable build up of dust or
deposits the tubes should be cleaned
internally.
Detach return bend and remove the
turbulators. The two tubes can then be
cleaned by passing rods and a suitable
scraper through them or by use of an
industrial vacuum cleaner with a long
extension.
Check burner
Remove 3 screws securing air intake and
use soft brush.
Clean impellers internally.
Open access door. Remove 2 screws.
Figure 9
Clean impellor externally
Remove 4 screws securing pump cover.
Check and clean pump filter.
• Clean diffuser.
• Electrodes replace or clean as necessary.
Ensure correct position as Figure 9.
• It is necessary to replace the nozzle at
each service to gain access. Follow steps
in section 12 Replacement of Parts.
3 mm
3 mm
Replace burner mounting gasket at each
service. (See above).
Reflector
The reflectors can be cleaned with a soft
cloth and detergent in water. A mild non
abrasive metal polish may be used in cases
of extreme discolouration. Dirty reflectors
will increase the heat radiation upwards
into the roof space by 3-4%.
Flexible oil line
The flexible oil lines should be replaced
annually.
Oil filters to the burner
Inspect and clean filter elements and
replace elements where necessary.
Recommission heater follow burner start
up procedure.
5/6mm
9