11 Annex
Heat exchanger: Back
Fig. 2-67
1 Position switch
(for ash extraction heat exchanger)
2 Motor for separator cleaning and ash extraction
heat exchanger
3 Holder for flue gas temperature sensor
4 Induced draft fan
11.4 Connect pellet hose
When installing the hose, observe the maximum per-
missible values.
Maximum hose length and delivery height
Routing
Max.
Hose
length
Max.
Delivery
height
Suction head to suction head
diverter
10 m
1 m
Suction head diverter to boiler
20 m
2.5 m
Total delivery path
30 m
3.5 m
Observe the following when installing hoses
–
The hose must be attached to the floor at several
points (e.g. with perforated tape) to prevent it from
'floating' upwards (in the case of floor-mounting,
e.g. suction head).
–
Route hose as straight as possible. To avoid sag-
ging of SOLARFOCUS articles, use a
support
shell made of zinc-plated sheet steel
.
–
Do not kink the hose (observe bending radius of >
30 cm).
–
The hose is not UV-resistant (routing outdoors is
not permissible).
–
Temperature resistance of the hose < 60°C.
–
Always push the end of the hose fully onto the pipe
connection as far as the stop. The hose will slide
on to the connection pipe better if you apply a little
water to the pipe.
–
Tighten hose clamps firmly. Detachment of the
hose and the intake of false air must be reliably pre-
vented.
Electrically earth the pellet hose
A metal braid is integrated into the inside of the plastic
hose coil. This metal braid must be electrically connec-
ted to each hose end and the connecting pipe (for suc-
tion and return air hose).
►
Expose approx. 10 cm of plastic coil at the end of
the hose.
►
Expose the metal braid using wire strippers.
►
Curve the metal braid and bend it onto the inside
of the hose.
►
Connect hose.
!
CAUTION
- The metal braid must have per-
manent electrically conductive contact to the
connecting pipe. Remove adhesive tape on the
connection pipes and/or scrape off the existing
coating.
Operation manual
maximus
37
