61
FLUECADE DATA
AND CASCADE OPTIONS
CASCADE
OPTIONS
Spreading the total required heat output over several boilers
in cascade configuration offers several advantages:
•
greater reliability
•
higher efficiency
•
improved design flexibility
•
quick and easy installation.
In order to make it as simple as possible to create a cascade
configuration, we have offered complete cascade systems
for years. The compact design of the boilers, combined with the
smart gas and water connection technology of the cascade system,
makes it possible to install a high heat output in a small area.
When installing two to eight boilers, our product range includes
systems that are very comprehensive and easy to install. The
hydraulic and gas system can be put together entirely without
welding, using screw connections, compression connections
and flanges. The individual components of the cascade systems
are available for independent cascade installation.
Please contact our technical or sales departments for different
configurations. We also provide in-depth advice on the choice
of flue gas discharge material and control engineering.
STRUCTURE OF QUINTA ACE
30, 45, 55, 65, 90, 115, 135 AND 160
CASCADE SYSTEMS
The flow, return and gas connections of the individual boilers
are connected using the fittings supplied by means of horizontal
connections to main pipes for flow, return and gas. These pipes
are welded onto a frame that rests on the floor and is fixed to the
wall or to a free-standing frame. The low loss header supplied
has flange connections, which can be fitted to the left or right of
the cascade main pipe as required. The blind flanges supplied
are then fitted on the other side. The gas main pipe has a flange
to which the optional gas filter can also be connected on the
left or right as required. The blind flange supplied is then fitted
on the other side. When a gas filter is used, a pressure loss of
three mbar over the gas filter must be taken into account. The
minimum inlet working gas pressure after the gas filter is 17mbar.
A common PVC condensed water discharge pipe (not supplied)
can be installed in the frame. For this purpose, holes have been
made in the frame into which this pipe can be fitted (to the left or
right as required) sloping downwards.
Quinta Ace 30, 45, 55, 65, 90 and 115 boilers are particularly
suitable for use in cascade systems due to their small footprint
and width of only 50cm which allows an exceptionally compact
cascade configuration. For example, when using six Quinta Ace
115 boilers in line (including low loss header), approximately
only 3.8m wall width is required for 642kW (80/60°C).
The cascade systems can be divided into three main groups:
•
two to seven Quinta Ace boilers in a linear configuration,
wall-mounted
•
two to seven Quinta Ace boilers in a linear configuration,
mounted on a free-standing frame
•
three to ten (2 x 5) Quinta Ace boilers in a back-to-back
configuration, mounted on a free-standing frame. The boiler
side of the cascade systems is sized to 20ºC. The low loss
header or air dirt separator is based on 20/11ºC.
A cascade up to a heat output of 460kW (80/60) has main
flow and return pipes of DN65 and the gas pipe is DN50
with corresponding flanged connections. A cascade up to a
heat output of 830kW (80/60) has main flow and return pipes
of DN100 and the gas pipe is DN65 with corresponding
flanged connections.
The Quinta Ace 135 and 160 boilers are particularly suitable for
use in cascade systems due to their small footprint and width
of only 60cm which allows an exceptionally compact cascade
configuration. This combined with the smart gas and water
connection technology (no brazing) of the cascade system makes
it possible to install a high output system in a small area. For
example, eight Quinta Ace 160 boilers can be installed in an area
of 4.4m² (including low loss header) to provide close to 1200kW
(80/60°C). It is also possible to have a mixed cascade that
includes the smaller Quinta Ace boilers into the configuration.
The cascade systems can be divided into two main groups:
•
two to eight Quinta Ace boilers in a linear configuration,
mounted on a free-standing frame
or
•
three to eight (2 x 4) Quinta Ace boilers in a back-to-back
configuration, mounted on a free-standing frame. The boiler
side of the cascade systems is sized to 20ºC.
The low loss header or air dirt separator is based on 20/11ºC.
The cascade is supplied with main flow and return pipes of
DN100 and the gas pipe is DN65 with corresponding
flanged connections.
Summary of Contents for Quinta Ace 115
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