20
6.1 GENERAL
Once the appliance has been serviced, the benchmark Service
Record must be completed.
For UK only: It is important that the Benchmark Service Record
is correctly completed and handed to the user. Failure to install
and commission the appliance to the manufacturers instructions
will invalidate the warranty.
To ensure the continued safe and ef
fi
cient operation of the ap-
pliance, 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 Vokèra spare part
. It should be
remembered that although certain generic components may
look similar, they will be speci
fi
c to an individual appliance or
product range. Use of non-genuine Vokèra spare parts could
invalidate your warranty and may pose a potential safety haz-
ard. The frequency of servicing will depend upon the particular
installation conditions, but in general, once per year should be
suf
fi
cient. It is the law that any servicing work is carried out by
competent person such as a Vokèra engineer, an approved
service agent, British Gas, GAS SAFE registered personnel
or other suitably quali
fi
ed personnel. The following instruc-
tions 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
speci
fi
cation. The cause of any noticeable deterioration
should be identi
fi
ed and recti
fi
ed without delay.
• Thoroughly inspect the appliance for signs of damage or
deterioration especially the
fl
ue 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 pres-
sure (see 5.10).
• Carry out an analysis of the
fl
ue gases (see 7.3), and visually
check the condition of the entire
fl
ue assembly.
• Compare the results with the appliance design speci
fi
cation.
Any deterioration in performance must be identi
fi
ed and recti-
fi
ed without delay.
5.11.2 FLOW-RATE RESTRICTOR
The boiler is supplied with the following
fl
ow restrictor.
Unica i28
9-litres
(Orange)
Spare
10-litres
(Blue)
Fitted
11-litres
(Beige)
Spare
Unica i32
11-litres
(Beige)
Spare
12-litres
(Red)
Fitted
13-litres
(Olive)
Spare
Unica i36
13-litres
(Olive)
Spare
14-litres
(Pink)
Fitted
15-litres
(Green)
Spare
5.12 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 TIGHTNESS.
• 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.
5.13 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
fi
lling 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 ef
fi
cient 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:
by completing the warranty registration card and posting to
us using the envelope supplied
online at: vokera.co.uk
for UK residents by calling: 0870 607 0281.
for ROI residents by calling: 056 6655057.
SECTION 6 - SERVICING INSTRUCTIONS
• Check that the main heat exchanger is clean and free from
any debris or obstruction.
• Check and clean – if necessary – the condense trap to ensure
correct operation.
The
fl
ame side of the burner is made of state-of-the-art material.
Being fragile:
- be particularly careful when handling, mounting or dismantling
the burner and adjacent components (e.g. electrodes, insula-
tion panelling etc.)
- avoid direct contact with any cleaning appliance (e.g. brushes,
aspirators, blowers, etc.).
This component does not need any maintenance, please do
not remove it from its housing, except where the O-ring may
have to be replaced.
The manufacturer declines all responsibility in cases of damages
due to failing to observe the above.
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
fi
nding 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
Fig. 29
