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| Euro-T2000 series is a range of fully
automatic room sealed gas fired unit heaters, for
industrial and commercial applications, particularly
suited where draughts, negative pressure, dust or other
non corrosive contaminants may be present. At the heart of the heaters is the perfectly co-ordinated combination of heat exchanger and burner, developed and patented by Reznor, that has set the standard for efficiency, reliability and operational life. The combustion process is completely separated from the heated space. An integral flue gas fan exhausts the products of combustion and at the same time introduces fresh air from outside the building for combustion. This
separated combustion technology, pioneered by Reznor,
offers major advantages:
A comprehensive range of options allows the units to be tailor made to suit extensive application requirements. Options include stainless steel heat exchangers, vertical louvres, 30, 60 and 90 degree downturn nozzles and units suitable for use on LPG. The heaters may also be provided with the flue and combustion air spigots located on the side to allow complete flexibility of flueing. For closer temperature control and reduced stratification, units may be specified with high/low or fully modulating burner control. Reznor
microprocessor energy management controls are available
to complement the energy efficient heaters and optimise
fuel economy.
Units are equipped with high quality axial flow fans to provide good air distribution at low noise levels. Standard models are supplied with aluminised steel heat exchangers, hot surface ignition and horizontal louvres. Since
the units are room sealed, they do not require the
installation of air grilles to the external walls.
The
aesthetically pleasing design and improved air
distribution ideally match the criteria for new low
energy buildings. Type-B models are fitted with belt driven, centrifugal blowers and a duct outlet spigot to allow the units to be connected to air distribution ductwork. The large capacity forward curved centrifugal fans are mounted on an angled plenum chamber to optimise the air distribution across the heat exchanger, and a selection of motor and drive configurations enables the units to match a wide range of airflow and static pressure requirements.
Type
D Downflow Plenum. For centrifugal
fan units where a vertical downflow discharge is
required, units may be fitted with a Type D outlet. This
downflow head is fitted with four individual sets of
louvres which may be adjusted to give the precise air
pattern required in two, three or four directions. Designed to meet a wide range of air handling applications, these units are supplied with forward curved centrifugal fans enclosed in an internally insulated fan cabinet. The fan cabinet may be fitted with a variety of filter options and also allows for the connection of recirculation ductwork. Comprehensive drive and motor options allow a range of airflows and duties to be specified to suit duct system design up to 400Pa.
A range of options, including high/low or modulating burner control, air flow proving or dirty filter pressure switches and constant fan facility, ensure optimum system design. Since the units are room sealed they do not require the installation of combustion air grilles to the external walls of the plant room. Units are also available for combined heating and ventilation applications where fresh air is required either in Winter or for Summer ventilation. Where units are used to provide ventilation, stainless steel heat exchangers (AISI 409) are recommended. Dampers may be fitted to the back, top or bottom of the cabinet. Dampers fitted on the back and top, or back and bottom, may be linked to allow the cabinet to be used as a mixing box for fresh and recirculated air. Fully automatic operation may be achieved using two position, three position or fully modulating damper actuators, or alternatively, the dampers may be manually controlled.
Where
make-up or ventilation air is used a fast response
ignition system should be specified. Euro-T Technical Data
Axial Fan Freeblowing Models T2000S & T2000A
Centrifugal fan models T2000B & T2000E
Appliances with higher efficiency
Notes: 1. Natural
gas G20 - calorific value 10.48 kWh/m3 GCV, 15oC
1013 mbar. Propane G31 - Calorific value 14.0 kWh/kg GCV.
Butane G30, calorific value 13.7 kWh/kg GCV.
HEAT
EXCHANGER GAS AND
SAFETY CONTROLS AIR
HANDLING INSTALLATION Flue systems are available for either wall or roof penetrations. The concentric balanced flue terminal provides both the flue outlet and combustion air inlet from a single opening in the building. A gas
isolation valve must be fitted adjacent to each unit. An
electrical isolator is also required, but the electrical
supply to the units should not be switched off except for
maintenance. Controls must be wired to the appropriate
time and temperature terminals and must not switch the
main electrical supply otherwise the control sequence of
the heater will be affected.
DIMENSION DATA
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The standard axial fan
versions are designed for freeblowing industrial and
commercial applications.
The high performance axial
fan models are designed for freeblowing industrial and
commercial applications where higher mounting heights are
required. The units are fitted with an extended fan
plenum chamber and a large diameter axial flow fan to
provide substantially increased airflows. A high
induction discharge head complete with both horizontal
and vertical discharge louvres improves the air mixing
and increases the air throw to ensure minimal
stratification and uniform air distribution and
temperatures within the building. The units may be used
in place of heaters fitted with lower airflow direct
drive centrifugal fans to provide improved air
distribution at lower noise levels.
The units are also ideal
where freeblowing heaters are required at very high
mounting heights. Use of the high capacity belt driven
fans allows much higher airflows to be selected to ensure
correct air distribution to the working zone. A range of
outlets complements the choice of airflows. The high
induction louvre, complete with horizontal and vertical
louvres, may be selected, or downturn nozzles which can
be used in multiples to provide 30, 60, 90 degree
discharge.
All models are fitted to a
base frame which can be floor mounted or from which the
units can be simply suspended using the four suspension
points provided. Units are supplied as standard with an
outlet spigot for connection to duct work, but may also
be used with the optional outlet heads for freeblowing
applications.
Fully modulating burner
control is particularly beneficial when winter
ventilation is required. A modulating control allows
units to be used as conventional heaters which can then
provide tempered fresh air input once the space reaches
design temperature.
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