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INSTALLATION (RETROFIT)
WARNING
Disconnect power source before working
on unit.
1. Remove the existing fan and cut ceiling opening.
Secure the Flex-Z Fast
by drilling 4 tapping screws (ST4.2x20) which
have been fixed on it. Existing ductwork and
wiring left in place. (Fig.10)
2. Follow the step 1 , 4 , 5 , 7 on INSTALLATION
(NEW CONSTRUCTION). (Before connect the
circular duct to the adaptor, should pull down
the circular duct from the ceiling)
3. Install the adaptor to Flex-Z Fast
using 2 self-drilling screws. (Fig.11)
4. Secure the fan body to Flex-Z Fast
using 2 self-drilling screws, plug connector to
receptacle and secure the fan body to adaptor
by using machine screw (M4X8). (Fig.12)
CAUTION
Secure machine screw (M4X8) to the suitable
hole and not touch the Flex-Z Fast
Please fix the screw carefully to avoid screw
slip teeth.
5. Follow the step 10 to 13 on INSTALLATION
(NEW CONSTRUCTION)
MAINTENANCE (CLEANING)
WARNING
Disconnect power source before working on unit.
CAUTION
Routine maintenance must be done every year.
Please wear gloves during the cleaning work.
Never use gasoline, benzene, thinner or any other
such chemicals for cleaning the ventilating fan.
Do not immerse motor in water when cleaning.
Do not soak resin parts in water over 140°F (60°C).
Do not use cleaning sprays, solvents, or water on
or near the sensors.
1. Clean grille. (Don't put into hot water. Use non-abrasive
kitchen detergent, wipe dry with clean cloth) (Fig.13)
2. The grille should be dry after cleaning.
3. Remove dust and dirt from fan body using a vacuum cleaner. (Fig.14)
10
English
bracket to joists
TM
bracket by
TM
bracket by
TM
bracket.
TM
Conduit
Circular duct
4Tapping
( ST4.2x20)
screws
Ceiling (already existed)
Conduit Circular duct
Knock-out
hole
Junction box
cover
2 Self-drilling screws
Ceiling
Joist
Ceiling
Machine screw (M4X8)
2 Self-drilling screws (Fix the
flange and Flex-Z Fast
TM
bracket
through the ceiling)
Vacuum
cleaner
Unit: inches (mm)
Joist
Fig.10
Mastic or
approved
foil tape
Joist
Fig.11
Flange
Fig.12
Gloves
Fig.13
Ceiling
Fig.14
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