Installation Guide

10
INSTALLATION (NEW CONSTRUCTION) CONTINUED
12. Insert the other mounting spring into the slot as
shown and mount grille to fan body. (Fig.10)
Mount grille carefully so that lead wire is not
pinched.
CAUTION
Attention: when the switch is at the “ON” position, wait 8 – 10
seconds for the Fan to start. This is a normal working condition.
INSTALLATION (RETROFIT)
1. Remove the existing fan and cut ceiling opening.
Secure the Flex-Z Fast bracket to joists
by drilling 4 tapping screws (ST4.2x20) which
have been fixed on it. Existing ductwork and
wiring left in place. (Fig.11)
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)
Disconnect power source before working
on unit.
5. Follow the step 10 to 12 on INSTALLATION
(NEW CONSTRUCTION)
TM
TM
3. Install the adaptor to Flex-Z Fast bracket by
using 2 self-drilling screws. (Fig.12)
4. Secure the fan body to Flex-Z Fast bracket by
using 2 self-drilling screws, plug connector to
receptacle and secure the fan body to adaptor
by using machine screw (M4X8). (Fig.13)
Secure machine screw (M4X8) to the suitable
hole and not touch the Flex-Z Fast bracket.
Please fix the screw carefully to avoid screw
slip teeth.
TM
CAUTION
WARNING
10 7/8
(275)
10 7/8
(275)
Circular ductConduit
Joist
4Tapping
(
ST4.2x20)
Unit: inches (mm)
Fig.11
Ceiling (already existed)
screws
Mastic or
approved
foil tape
2 Self-drilling screws
Ceiling
Joist
Knock-out
hole
Junction box
cover
Conduit
Circular duct
Fig.13
TM
English
Ceiling
Flange
Machine screw (M4X8)
2 Self-drilling screws (Fix the
TM
flange and Flex-Z Fast
through the ceiling)
bracket
Fig.12
Joist
Fig.10
Grille
Ceiling
Gloves
Mounting spring