Twister Enclosure User Manual
page 9
2.6 Air Filters
Note that both cowls are fitted with electrostatic air filters, to prevent ingress of dust and insects.
Both filters must always be in place.
You will need to remove the filters periodically for cleaning. How often will depend on local conditions. We
recommend checking every three months and then determining frequency of cleaning depending on what you
find.
To clean the filters, simply run them under a tap or water hose. Replace carefully between the ribs in the air
cowls. Cowls do not need to be removed
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this picture is for illustration only.
2.7 Fan Chimney (Twister 1900/1950)
The Fan Chimney is supplied with larger Twister enclosures and is required for use with luminaires using the
Philips 5R and 15R lamp, which is very sensitive to elevated temperatures. The fan chimney ducts the
incoming airflow from the fan into the top of the globe for more effective cooling.
Wrap the fan chimney around the fan, high side outside, and secure using the zip ties provided.
The fan chimney is soft, and will conform to the base of the luminaire as well as to the inside of the globe
assembly. It may be trimmed with sharp scissors if
needed.
Inlet/Exhaust Cowl
Filter
