Final Checks; Instructing The User; Maintenance - Riello Vokera VIBE MAX User Instructions

5.35 FINAL CHECKS

• ENSURE ALL TEST NIPPLES ON THE APPLIANCE GAS
VALVE ARE TIGHT AND CHECKED FOR TIGHTNESS.
• ENSURE THE APPLIANCE FLUE SYSTEM IS FITTED
CORRECTLY AND IS PROPERLY SECURED.
• ENSURE ALL PIPE WORK IS RE-CHECKED FOR TIGHT-
NESS.
• RE-FIT APPLIANCE CASING.
• COMPLETE BENCHMARK CHECKLIST.
FOR UK ONLY
Complete details of the boiler, controls, installation and com-
missioning in the Benchmark checklist at the back of this
book. It is important that the Benchmark checklist is correctly
completed and handed to the user. Failure to install and com-
mission the appliance to the manufacturers instructions will
invalidate the warranty.

5.36 INSTRUCTING THE USER

Hand over all documentation supplied with this appliance –
including these instructions – and explain the importance of
keeping them in a safe place.
Explain to the user how to isolate the appliance from the gas,
water and electricity supplies and the locations of all drain
points. Show the user how to operate the appliance and any
associated controls correctly.
Show the user the location of the filling valve and how to top-
up the system pressure correctly and show the location of all
manual air release points.
Explain to the user how to turn off the appliance for both long
and short periods and advise on the necessary precautions to
prevent frost damage.
Explain to the user that for continued safe and efficient operation,
the appliance must be serviced annually by a competent person.
IMPORTANT
To validate the appliance warranty, it's necessary to register
the appliance details with us. The warranty can be registered
in several ways:
• online at: www.vokera.co.uk (UK) or www.vokera.ie (Ireland)
• UK residents can also register by calling: 0800 479 0751.

5.37 MAINTENANCE

Cleaning the primary heat exchanger
ƒ Isolate the appliance from the gas & electrical supply.
ƒ Remove the casing as explained in paragraph "4.6 CA-
SING REMOVAL".
ƒ Disconnect the connecting cable of the electrode.
ƒ Disconnect the power cables of the fan.
ƒ Take out the clip of the fixing pipe (A) from the mixer.
ƒ Loosen the nut of the gas train (B).
ƒ Rotate and take out the gas pipe from the mixer.
ƒ Remove the 4 nuts (C) that fix the combustion unit.
ƒ Take out the air/gas conveyor assembly including the fan
and mixer, being careful not to damage the insulating panel
and the electrode.
ƒ Remove the siphon connecting pipe from the condensate
drain fitting of the heat exchanger and connect a temporary
collecting pipe. At this point proceed with the heat exchanger
cleaning operations.
ƒ Vacuum out any dirt residue inside the heat exchanger,
being careful NOT to damage the retarder insulating panel.
ƒ Clean the coils of the heat exchanger with a soft bristled
brush.
b
DO NOT USE METAL BRUSHES THAT COULD
DAMAGE THE COMPONENTS.
ƒ Clean the spaces between the coils using a 0.4 mm thick
blade (also available in a kit).
ƒ Vacuum away any residue produced by the cleaning.
ƒ Rinse with water, being careful NOT to damage the retarder
insulation panel.
b
In case of stubborn deposits of combustion products on
the surface of the exchanger, clean by spraying natural
white vinegar, taking care NOT to damage the retarder
insulation panel.
ƒ Leave for a few minutes.
ƒ Clean the coils of the exchanger with a soft bristle brush.
b
DO NOT USE METALLIC BRUSHES WHICH CAN
DAMAGE THE COMPONENTS.
ƒ Rinse with water, taking care NOT to damage the retarder
insulation panel.
ƒ Make sure the retarder insulation panel is undamaged and
replace it if necessary following the relative procedure.
ƒ Once the cleaning operations are finished, carefully reassemble
all the components, following the above instructions in the
reverse order.
ƒ To close the fixing nuts of the air/gas conveyor assembly, use
a tightening torque of 6 Nm following the sequence indicated
on the diecast (1,2,3,4).
ƒ Restore the gas and electrical supply to the appliance.
Cleaning the burner:
ƒ Isolate the appliance from the gas & electrical supply.
ƒ Remove the casing as explained in paragraph "4.6 CASING
REMOVAL".
ƒ Disconnect the connecting cable of the electrode.
ƒ Disconnect the power cables of the fan.
ƒ Take out the clip of the fixing pipe (A) from the mixer.
ƒ Loosen the nut of the gas train (B).
ƒ Rotate and take out the gas pipe from the mixer.
ƒ Remove the 4 nuts (C) that fix the combustion unit.
ƒ Take out the air/gas conveyor assembly including the fan and
mixer, being careful not to damage the ceramic insulation
panel and the electrode. At this point proceed with the burner
cleaning operations.
ƒ Clean the burner with a soft bristled brush, being careful
not to damage the insulation panel and the electrode.
b
DO NOT USE METAL BRUSHES THAT COULD
DAMAGE THE COMPONENTS.
ƒ Check that the burner insulating panel and the sealing gasket
are undamaged and replace them if necessary, following the
relative procedure.
ƒ Once the cleaning operations are finished, carefully reassem-
ble all the components, following the above instructions in the
reverse order.
ƒ To close the fixing nuts of the air/gas conveyor assembly, use
a tightening torque of 6 Nm.
ƒ Restore the gas and electrical supply to the appliance.
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