VOKERA Linea Installation & Servicing Instructions Manual - page 25
Supplied By www.heating spares.co Tel. 0161 620 6677
21
Linea Max
Fig. 23
Fig. 24
Flue gas analysis
test point
4. Ensure central heating valves are open.
See 6.3.2.1.
Observe pressure gauge reading (fig. 1, 19)
which should be approximately 1 bar when
the system is cold See 6.3.4
5. Turn off mains electricity and turn off gas
service tap on the appliance.
6. Gain general access as described in
clause 8.4.
7. Remove main burner (see clause 8.6).
Lightly clean with a soft brush and inspect
for damage. If during initial inspection any
combustion irregularity was suspected,
remove injectors and clean or replace (see
clause 8.7).
8. Place cloth below combustion chamber to
catch debris. Clean heat exchanger using
suitable brushes and rods if necessary.
9. Inspect combustion chamber lining. The
insulating material is easily damaged. Do
not scrape, but clean off lightly.
If any panels are damaged these should be
replaced (see clause 8.11).
10. Replace all parts in reverse order but
leave the controls fascia open and outer
casing off.
11. Undertake a complete commissioning
check as detailed in section 6.
12. Close up control fascia and refix front
casing.
13. Clean off casing using soft cloth and
dilute detergent.
14. Complete details of service undertaken
in the boiler log book.
NOTE: There is a flue gas analysis test
point incorporated in the flue outlet. (see
8.23.6)
8.3.2
Replacement of Parts
1. The life of individual components varies
and they will need servicing as and when
faults develop. The fault finding sequence
charts in section 9 will serve to locate which
component is the cause of any malfunction.
Instructions for removal, inspection and
replacement of the individual parts are given
in the following pages.
2. The domestic hot water heat exchanger
may in certain conditions become partially
blocked by scale deposits. Evidence of this
will be deterioration in performance.
This condition could well be treated using
proprietary descalants following makers'
instructions without dismantling the appli-
ance by circulating a fluid through the dhw
coil. To do this, disconnection from hot and
cold services is necessary. Reconnect only
after thorough flushing with clean water.
3. Occasional maintenance of mechanical
working parts will be necessary (three port
valve, flow diaphragm). Service kits are
available from your local Vokèra stockists.
Vokèra Service Kit No.T0019
8.4
To Gain General Access/Assembly
To remove components access to the
interior is essential.
Ensure electricity supply is isolated before
carrying out any servicing.
8.4.1
To remove front casing.
Push to release front door panel and lower
to reveal controls. Found magnetised on the
inside of the door panel will be a small tool.
Using the tool loosen the 2 captive screws
securing the front control panel door to the
appliance, lift away to reveal the inside of
the appliance.
If necessary reposition the front control panel
by first pulling it free from 4 locating lugs.
Rotate the panel through 90° degrees and
relocate it into the lower position using the
locating hooks as shown in fig.18.
8.4.2
Reassembly is always carried out in reverse
order to dismantling, unless otherwise stated.
Electrical connections must be remade in ac-
cordance with the wiring diagram (fig.36).
8.4.3
Where gas control components are re-
placed, check the burner pressures and
adjust if necessary. See 8.23.
8.5
Room Sealed Chamber Front Cover
Refer to fig. 23.