SECTION 15: R
EPLACEMENT
P
ARTS
41 of 45
15.5 Flue Blower Vertical Installation for UHD[X][S]75 Only
IT IS IMPORTANT THAT ONLY THE CORRECT FLUE BLOWER SPECIFIED FOR EACH MODEL TYPE
IS USED WHEN REPLACING THESE ITEMS.
Carry out a start-up after working on or changing a flue blower.
MODEL
UHD[X][S] 75
UHD[X][S] 100-125
Flue Blower P/N
90710404
90710403
To remove the blower,
remove screws securing the
fan and mounting plate to
the vent box.
To remove the blower from
the mounting plate, remove
screws.
Refit in reverse order.
To change the vent and air
intake orientation from back
to top, remove the blower
and mounting plate as
above.
Remove intake and exhaust
covers from top of the
heater.
Rotate the blower, mounting
plate and gasket clockwise
until the flue adapter lines
up with the top hole. Secure
screws.
If applicable, remove the air
intake adapter from the back
of the heater and install in
the appropriate hole on top.
Install intake and exhaust
covers over the back holes.
Ensure sealed joints.
Ensure mounting plate
orifice is clear and not
obstructed.
