AHG Solutions Guide_Edition 2.7

Contents
Modulex EXT - Condensing Boilers
MODULEX EXT has a certified
efficiency that, for all models
above 350 kW, when working in
condensation, progressively increase
up to 109% when the output is
reduced.
The genius of the thermo-controller
E8 is that it keeps ON the greatest
number of elements as possible,
working at the smallest possible
output (as shown in the examples
beside).
The system will always work in the
conditions of maximum possible
efficiency, independently from the
supplied output.
When the requested output is less
than the capacity available the design
of the Modulex regulates evenly
reducing the output of each module
to suit. Once the minimum level for
a module is reached it is disabled in
cascade sequence.
This modular system is such that
as the number of modules used
decreases - the efficiency increases.
The flexibility of this modular
conception is ground breaking and
brings vast cost savings through
increased efficiency.
To avoid one element module being
over used more than others, the
thermo-controller automatically
alternates usage of all element
modules evenly.
Efficiency (%)
Modulex EXT Efficiency
109
108
107
106
104
102
12 22 50 110
Output (kW)
Modulex EXT 150 | 350
Modulex EXT 440 | 900
Output sharing of MODULEX EXT of 4 modules of 50 kW
Max Output
50% Output
50kW 50kW 50kW 50kW
25kW 25kW 25kW 25kW
Total Efficiency η = 102
Total Efficiency η = 104
CONDENSING &
CONVENTIONAL BOILERS
25% Output
Min Output
12kW
12kW
12kW
12kW
12kW
Off
Off
Off
Total Efficiency η = 106.5
Total Efficiency η = 107
97