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Fig. 18
4.5
INSTRUCTION FOR CONDENSATION
EXHAUST CONNECTION
This product is designed to prevent the escape of gaseous
products of combustion through the condensation drain pipe
with which it is equipped, this is obtained by using a special
siphon placed inside the appliance.
b
All components of the product condensation drain sy-
stem must be properly maintained in accordance with
the manufacturer instructions and cannot be modified
in any way.
The condensation exhaust system downstream of the applian-
ce (1) must comply with the relevant legislation and standards.
The construction of the condensation exhaust system
downstream of the appliance is the responsibility of the
installer. The condensation exhaust system must be
dimensioned and installed in such a way as to guarantee
the correct evacuation of the condensation produced by the
appliance and/or collected by the evacuation systems of
combustion products. All the components of the condensation
exhaust system must be made in a workmanlike manner using
materials that are suitable for withstanding the mechanical,
thermal and chemical stresses of the condensation produced
by the appliance over time.
Note: If the condensation exhaust system is exposed to the
risk of frost, always provide an adequate level of insulation
of the pipe and consider any increase in the diameter of the
pipe itself.
The condensation exhaust pipe must always have an adequate
slope level to prevent the condensation from stagnating and
its proper drainage.
The condensation exhaust system must have an inspectable
disconnection (2) between the condensation exhaust pipe of
the appliance and the condensation exhaust system.
The disconnection must be such as to ensure an atmospheric
connection between the inside of the condensation exhaust
system pipe and the environment in order to avoid that the
downstream exhaust pipe of the product can take on positive
or negative pressure with respect to the environment itself.
"Fig. 19": example of a connection between the condensation
exhaust pipe (3) and the exhaust system (4).
Fig. 19
22
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3
2
4
4.6
ELECTRICAL CONNECTIONS
The boler is supplied with a short fly-lead. This lead can be used
for connection to the electrical supply. Connect the fly-lead to a
fused plug or fused isolator in the following way:
• brown wire to LIVE supply
• blue wire to NEUTRAL supply
• green/yellow to EARTH connection.
Insert the supplied 3-AMP fuse into the fused isolator or fused plug.
Should the fly-lead be unsuitable, refer to 4.8 for details on how to
connect the electrical supply directly to the boiler.
The electrical supply must be as specified in section 3 - 3E. A quali-
fied electrician should connect the appliance to the electrical supply.
If controls - external to the appliance - are required, a competent
person must undertake the design of any external electrical circuits,
please refer to section 8 for detailed instructions. ANY EXTERNAL
CONTROL OR WIRING MUST BE SERVED FROM THE SAME
ISOLATOR AS THAT OF THE APPLIANCE. The supply cable from
the isolator to the appliance must be 3-core flexible seized 0.75mm
to BS 6500 or equivalent. Wiring to the appliance must be rated
for operation in contact with surfaces up to 90 ºC.
4.7
CASING REMOVAL
To gain internal access to the appliance you must first remove
the casing, proceed as outlined below:
• locate and unscrew the 2-screws (A) that secure the outer
casing to the appliance
• lift the casing upward to disengage it from the top locating
hooks and then remove
• store the casing and screws safely until required. Re-fit in
the reverse order
• remove the screw below the control fascia and gently lower it
until it rests.
Fig. 20
4.8
CONNECTING THE MAINS (230V) INPUT
Unhook and remove the terminal block cover (230V). Pass the
cable through the cable anchorage point. Connect the supply
cable wires (LIVE, NEUTRAL, & EARTH) to their corresponding
terminals (L, N, & E) on the appliance – high voltage – terminal
block. When connecting the EARTH wire, ensure that it's left
slightly longer that the others, this will prevent strain on the EARTH
wire should the cable become taut. Do not remove the link wire
unless additional external controls are to be fitted (see section
"8 CHECKS, ADJUSTMENTS AND FAULT FINDING" )route the
electrical supply via the cable entry/exit point and secure using
the cable anchorage grip and screws.
NOTE
It is the installer's responsibility to ensure that the appliance is
properly Earthed. Vokèra Ltd. cannot be held responsible for any
damages or injuries caused as a result of incorrect Earth wiring
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