VOKERA Linea Installation & Servicing Instructions Manual - page 20
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6.1 GENERAL
To ensure the continued safe and efficient operation of the appliance,
it is recommended that it is checked and serviced at regular
intervals.
To ensure correct and safe operation of the appliance, it is essential
that any worn or failed component be replaced only with a
genuine
Vokera spare part
. It should be remembered that although certain
generic components may look similar, they will be specific to an
individual appliance or product range. Use of non-genuine Vokera
spare parts could invalidate your warranty and may pose a potential
safety hazard. The frequency of servicing will depend upon the
particular installation conditions, but in general, once per year
should be sufficient. It is the law that any servicing work is carried
out by competent person such as a Vokera engineer, an approved
service agent, British Gas, GAS SAFE registered personnel or other
suitably qualified personnel.
The following instructions apply to the appliance and its controls, but
it should be remembered that the central heating and the domestic
hot water systems would also require attention from time to time.
6.2 ROUTINE ANNUAL SERVICING
- Check the operation of the appliance and ensure it functions as
described in section 7.
- Compare the performance of the appliance with its design
specification. The cause of any noticeable deterioration should
be identified and rectified without delay.
- Thoroughly inspect the appliance for signs of damage or deterio-
ration especially the flue system and the electrical apparatus.
- Check and adjust – if necessary – all burner pressure settings
(see 7.4).
- Check and adjust – if necessary – the system design pressure
(see 5.10).
- Carry out an analysis of the flue gases (see 7.5), and visually
check the condition of the entire flue assembly.
- Compare the results with the appliance design specification. Any
deterioration in performance must be identified and rectified
without delay.
- Check that the burner and main heat exchanger are clean and free
from any debris or obstruction.
- Check and clean – if necessary – the condense trap to ensure
correct operation.
6.3 REPLACEMENT OF COMPONENTS
Although it is anticipated that this appliance will give years of
reliable, trouble free service, the life span of components will be
determined by factors such as operating conditions and usage.
Should the appliance develop a fault, the fault finding section will
assist in determining which component is malfunctioning.
6.4 COMPONENT REMOVAL PROCEDURE
To remove a component, access to the interior of the appliance is
essential. Isolate the appliance from the electrical supply and
remove the fuse. And when necessary, close all service valves on
the appliance, remove the appliance casing as described in
section 4.7.1 and drain the water content from the appliance via the
drain valve. Ensure some water absorbent cloths are available to
catch any residual water that may drip from the appliance or
removed component. Undertake a complete commissioning check
as detailed in section 5, after replacing any component.
ALWAYS
TEST FOR GAS TIGHTNESS IF ANY GAS CARRYING COMPO-
NENTS HAVE BEEN REMOVED OR DISTURBED.
6.4.1 AIR BOX FRONT COVER REMOVAL (fig. 21)
Locate the two clips and remove air box front cover. If necessary to
remove the air box side cover, locate and remove the 4 screws
.
6.5 PUMP ASSEMBLY (fig. 22)
Carry out component removal procedure as described in 6.4.
Locate and remove the 2 securing screws
(A)
at the rear of the pump
assembly. Disconnect the flow pipe
(B)
from the combustion
chamber connection, slacken the pipe at the hydraulic assembly
and swing/rotate clear of the pump assembly. Disconnect and
remove the pump outlet pipe
(C)
from the pump assembly/
combustion chamber connection. Remove the expansion pipe
locking pin from the top of the pump assembly and withdraw the
flexible pipe
(D)
. Disconnect the electrical wiring from the pump’s
electrical connection point
(E)
. Remove locking pin
(F)
from pump
base and lift pump assembly clear of the hydraulic manifold.
The pump assembly can now be removed from the appliance.
Replace carefully in the reverse order
.
Fig. 21
SECTION 6 - SERVICING INSTRUCTIONS
H
I
G
D
E
C
B
A
F
X= Measured
distance from
flue spigot to
hole drilled
Y= Measured hight from
bracket to centre of hole drilled
X= terminal only
X= 2m
X= 3m
X= 3.85 m
min
114mm
132mm
149mm
164mm
max
114mm
166mm
219mm
265mm
Fig. 22
Fig. 20