andrews FASTflo WH42 Installation Manual, Operation And Maintenance Manual page 40

15-2-4. Flue Terminal Installation Procedure
1) Determine the flue terminal installation location and make a 160 mm diameter hole in the wall for
the sleeve and 7.2 mm diameter holes for the screws to hold the sleeve.
160 mm diameter hole for the flue terminal sleeve
Center line of the flue terminal
2) Adjust the sleeve length to fit the wall thickness. Install the sleeve with the
symbol on the top side.
Remove this screw
and slide out the
external cylinder.
This symbol should
be on the top
3) Waterproof the clearance between the sleeve and
wall with a high temperature sealant.
36
142
Flue collar of water heater
Slide out the external cylinder
until it is flush with the external wall
and replace the screw.
Rounded wood
screw
36
* When drilling, take care not to damage electric
wiring, or gas or water piping in walls.
Screw holes (4)
(7.2 mm diameter and 35 to 40 mm depth).
Waterproof the clearance
with a high temperature sealant
05.10.4, 1:41 PM
160 mm dia.
Wall anchor
Sleeve
Sleeve
Waterproof the clearance
with a high temperature
sealant.