Ambirad VISION COMPACT VC40, Operation, Maintenance And Servicing Manual

Page: 11 / 20

Emitter tube inspection
Brush away any dust on the exterior of the
emitter tubes.
Remove the heat exchanger by slackening
pinch bolts, disconnect flue and fresh air
inlet where necessary.
Through the two holes view down the tubes
and if carbon deposits are evident clean
with a suitable rod.
Reflector
It is recommended that the reflector is
cleared of any dust annually and before the
start of each heating season.
The reflector can be cleaned with a soft
cloth and detergent in water. A mild non
abrasive metal polish may be used in cases
of extreme discolouration. Dirty reflectors
will increase the heat radiation upwards into
the roof space by 3-4%.
Sweeping the flue
As a part of the annual service of type B
appliances the flue should be periodically
swept inaccordance with the regulations of
the country that the appliance is installed.
For servicing of injector, electrode
assembly, refer to Section 15.
Recommissioning After Service
After servicing or replacing parts of the
heater has been undertaken, it will be
necessary to re-commission the heater as
detailed in Section 12 of these instructions
14 Herringbone System
Gain access to the burner/flue
compartment
Connect a 4” flue pipe to the damper of the
herringbone system.
Connections for a herringbone
adjustment
Disconnect the electric supply, gain access
to the burner, see section(s) 10 to 12
Remove fan spigot by removing the three
retaining screws.
Combustion Fan - Natural Gas
To remove the combustion fan, disconnect
the electrical connection from the burner
control assembly, disconnect flue and
fresh air inlet where necessary. Slacken
the grub screws securing the heat
exchanger spigot to the flue tube.
Figure 16
Slide the heat exchanger back towards the
front of the heater until the flue spigot
disengages from the flue tube. Remove
screws securing the fan mounting plate to
the side of the heat exchanger and
remove.
Figure 17
Inspect the fan impeller and remove any
dust by brushing with a soft brush.
Similarly remove any dust from the finger
guard covering the secondary (cooling)
impeller and the mesh aperture in the
motor cover. Ensure that the impeller
turns freely and that there is no excessive
play in the bearings.
Figure 18
9
Figure 19
Locate pressure test tee piece, remove
the black sealing cap. See figure 22.
Attach the manometer. See figure 20.
Figure 20
Loosen the damper plate locking the
grub screw, slide the damper plate to
approximately half way.
Figure 21 -Natural Gas
Figure 22 - Propane Gas
Follow commissioning procedure, allow
heater to fire for approximately 30
minutes. Set damper plate to give a hot
pressure as indicated below.
Damper Settings
Turn off electrical supply, remove
manometer, refit sealing cap.
Hot Cold
0.75mb 1.95mb