Alfa
hot air gas-
fi
red air heaters
4
52.10.03.2017.eng
In support of engineering, installation, servicing, and maintenance
Remove the packaging material and make sure that the contents have not su
ff
e-
red any damage. Check the consignment for completeness against the Delivery
Note. Do not use the unit and contact the supplier if in doubts.
Packaging materials (wooden crate, nails, clamps, plastic bags, foam polystyre-
ne) must not to be left within reach by children, not to pose any hazard. Use the ori-
ginal packaging for re-transportation or storage, if any.
Application
Installation in General
Installation Rules
The Alfa units must be installed in compliance with the applicable standards
and regulations. Design engineer, installer, and User are responsible for proper and
safe installation.
The Alfa units must not be run:
in aggressive atmospheres
in strong electromagnetic
fi
elds
in heavily dusty or humid environments
in environments with explosion hazard
Should the unit have to be installed in a non-permissible environment as above,
every individual installation is subject to assessment by the relevant authorities in
accordance with the applicable regulations.
Installation of the equipment must be carried out by a quali
fi
ed sta
ff
member,
competent to do the work, according to the manufacturer’s instructions and appli-
cable standards (
Č
SN 06 1008,
Č
SN EN 416-1,
Č
SN 33 2000,
Č
SN 38 6420, TPG 704
01).
Commissioning, maintenance, repairs, and technical care may only be carried
out through an authorized LERSEN Service Centre.
Manufacturer renounces responsibility for damage due to unskilled installation.
a) For the conditions upon which the units can be connected to the gas system
and power supply see the “Gas/Electro Connections” (page 23).
b) Type and installation of the
fl
ue duct must comply with the
Č
SN 734201 stan-
dard. The combustion air
fl
ow rates must comply with TPG 704 01.
For the
fl
ue duct type installations see the “Extraction Systems: Type Examples”
(page 20).
c) Installation must be carried out in respect of the adequate safe space for ma-
king adjustments and technical care.
d) The
Č
SN 06 1008 standard must be respected whenever the safe distance of
the Alfa- TOP/ECO units and their
fl
ue ducts from the building material surfaces is
to be determined.
e) Always make a careful inspection once the installation is completed. Run the
system for at least one cycle time in order to
fi
nd out that the system works as in-
tended, mainly in respect of the limit control function. Recommendation is to en-
trust the heater commissioning solely to a skilled expert personnel. The hot air he-
aters require an expert technical care without which a reliable operation, fuel
savings, and everlasting high e
ffi
ciency can hardly be achieved. If it becomes nece-
ssary to change over to operation/ventilation, our recommendation is to use the re-
mote control with the heating/ventilation selector switch, code DOAL000001.
Packaging
General User Instructions
Warranty
The AlfaTOP/ECO must be used within the applications for which they are expre-
ssly intended. Any other uses shall be deemed as incorrect, therefore as posing a
hazard. Manufacturer and the supplier renounce responsibility for the damages
due to incorrect use. The risk shall be borne by the User himself.
Only the original LERSEN accessories may be used for all the AlfaTOP/ECO units.
Only the LERSEN brand repair shop may replace the spare parts. The manufacturer
renounces all responsibility for damages or injures where other than original
spares have been used.
Avoid contacts with the heater’s hot surfaces being usually near the
fl
ame.
These surfaces heat up in service and remain hot for a time even when you turn o
ff
the unit.
All the pending hazards have to be eliminated once the unit stops being run.
Should the Alfa unit be de
fi
nitely put out of service, hire an authorized LERSEN
service centre.
The unit can be disconnected from main power supply by interrupting its inlet
cable any turning the main circuit breaker to its o
ff
position. Fuel supply can be bro-
ken by closing the respective manual valve (ball valve) on the inlet line. Failure to
observe the main rules may result in serious injury or death.
While being put into operation, the ALFA units have to be left continua-
lly running in the HEATING mode for at least 4 hours. The exchanger will
become thermally and super
fi
cially stabilized in this mode. At this time a
smoke can be generated and set o
ff
the
fi
re detectors.
The ALFA TOP air heaters are covered by the 84-month warranty provided that
the Lersen Terms & Conditions and maintenance conditions are observed. The
60-month warranty applies to the ALFA ECO air heaters subject to observance of
the same conditions.
