Robur AY, Installation, Use & Maintenance Manual

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Electrical installer
Installation, use and maintenance manual – AY
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4
It will be the responsibility of the designer and/or the in-
staller and/or the person in charge of the system, depend-
ing on the power of the system and intended use of the
building, to assess the adoption of systems for the neu-
tralization of acid condensate.
The system must be designed in such a way as to prevent
condensation from freezing. Before commissioning the
appliance, check that the condensate is drained correctly.
To do this, disconnect the hose from the siphon outlet and
pour water into it, making sure that it is correctly and com-
pletely drained from the downstream drainage system.
Do not use gutters to discharge the condensate
Do not discharge the flue condensate in gut-
ters, due to the risk of materials corrosion and ice
formation.
3.5.1
Flue gas condensate connection
The fitting for flue gas condensate drain is located on the
right side of the appliance (Paragraph 1.2
p. 7) at the
connection plate.
The connection of the discharge to the sewerage system
should be made at atmospheric pressure, i.e. by dripping
into a siphoned container connected to the sewerage
system.
3.5.2
Flue gas condensate drain manifold
To make the condensate drain manifold:
▶
Size the ducts for maximum condensation flow rate
(Table 1.1
p. 13).
▶
Use plastic materials resistant to acidity pH 3-5.
▶
Provide for min. 1% slope, i.e. 1 cm for each m of the
length (otherwise a booster pump is required).
▶
Prevent freezing.
▶
Dilute, if possible, with domestic waste water (e.g.
bathrooms, washing machines, dish washers...), basic
and neutralising.
3.5.3
Condensate drain siphon filling
When switching on for the first time, the condensate si-
phon must be filled to prevent the combustion gases
from backflowing through the siphon.
It is advisable, after the first few months of operation of
the appliance, to clean the siphon, which collects also any
deposits resulting from the first passage of the conden-
sate inside the components of the appliance. These de-
posits could cause the siphon itself to malfunction.
4 ELECTRICAL INSTALLER
Do not power and/or start the boiler before filling
the hydraulic system, as this may damage the in-
ternal hydraulic components.
4.1 WARNINGS
General warnings
Read the warnings in Chapter III.1 p. 4, provid-
ing important information on regulations and on
safety.
Compliance with installation standards
Installation must comply with applicable regula-
tions in force, based on the installation Country
and site, in matters of safety, design, implementa-
tion and maintenance of electrical systems.
Installation must also comply with the manufactur-
er's provisions.
Live components
After placing the appliance in the final position,
and prior to making electrical connections, ensure
not to work on live components.
Earthing
„
The appliance must be connected to an effective
earthing system, installed in compliance with reg-
ulations in force.
„
It is forbidden to use gas pipes as earthing.
Cable segregation
Keep power cables physically separate from signal
ones.
Do not use the power supply switch to turn the
appliance on/off
„
Never use the external isolation switch to turn the
appliance on and off, since it may be damaged in
the long run (occasional blackouts are tolerated).
„
To turn the appliance on and off, exclusively use
the suitably provided control device.
4.2 ELECTRICAL SYSTEMS
Electrical connections must provide:
▶
power supply (Paragraph 4.3 p. 26)
▶
control system (Paragraph 4.4 p. 26)
How to make connections
All electrical connections must be made in the ap-
pliance's electrical panel (Figure 4.1
p. 26):
1. Ensure the appliance is not live.
2. Remove the appliance front panel (Figure
5.1
p. 31).
3. Unscrew the two screws and remove the electrical