27
end of the tube
ensuring it is fully engaged.
Secure with grub screws. Note: The damper
assembly must be located with its damper blade
vertical and left in the closed position. The
manifold tube is to be sealed and secured (as
described below) to the damper assembly.
2.2.12 Herringbone Manifold Assembly.
HB Models ONLY.
After fixing the heaters in
the desired position, the manifold system
requires fitting.
After allowing for a minimum of 75mm (3in) of
penetration of the fitting into the tube, cut the
tubes to the lengths required and remove all
burrs and wipe off any grease or oil with a clean
rag.
Method of jointing aluminium tube
Using the applicator gun exude 4mm diameter
bead of high temperature silicon jointing
compound externally round the end of the fitting
and internally round the end of the tube.
2.2.8 Burner Assembly.
On VS(A)UT only
, slide the burner assembly
onto the
RIGHT HAND TUBE
when viewed
from above
,
ensuring it is fully engaged. Secure
with grub screws.
On VS(A)LF, VS(A)DL & VS(A)LH models
only
, slide the burner assembly onto the
inlet
end of the tube
ensuring it is fully engaged.
Secure with grub screws.
2.2.9 Fan Assembly.
On U Tube heaters only, s
lide fan onto the left
hand tube ensuring it is fully engaged. The fan
discharge should face vertically for individually
flued or horizontally away from the burner if
unflued.
2.2.10 Condensate Box Assembly.
On VS(A)DL models only
,
slide
the
condensate box flange onto the
outlet end of
the tube
ensuring it is fully engaged. Secure
with grub screws.
2.2.11 Herringbone Damper Assembly.
On VS(A)UH and VS(A)LH models only
, slide
the damper assembly flange onto the
outlet
2 x ‘Z’ clips
End Cap
M5 set pin
These holes -
Burner end only
Fitting
Manifold
External bead of
jointing compound
Internal bead of
jointing compound
Manifold Tube
Vacuum Test Point
Damper Blade
Emitter Tube
FLOW
FLOW