Envirovent MEV SPIDER Installation Manual page 9

05 Installation Instructions
Connecting the ductwork
1. Scribe around the outer edge of the
required spigot blank MAX x 3 (a). Knock
out the blank with a light tap (b).
2. Remove blanks from inside the unit.
3. It may be necessary to remove excess
material with a knife.
AFTER INSTALLING THIS UNIT PLEASE PASS ONTO END USER
DO NOT THROW AWAY
4. Push in spigot and fix with self tapping
screws provided.
(a)
(b)
5. Ductwork, ridged and flexi must be
securely fixed.
6. If a blank is removed in error, the spigot
hole must be filled with the spare blank
provided. Firmly glue in place.
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