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1 3 Description of the appliance
The Power Plus Box SE system is a module to be combined
with a Power Plus Box system (SLAVE) for implementing a
heating plant in only two cabinets, with powers of 250 and
300 kW, respectively. The module includes the kit complete
with the I.S.P.E.S.L. components and the hydraulic separa-
tor that also acts as a distribution component on two sepa-
rate circuits (high temperature and low temperature).
The I.S.P.E.S.L control and safety components foreseen by
collection R, for this type of application, are positioned on
the delivery manifold, downstream of the last combustion
unit.
The technical manual for the Power Plus Box system de-
scribes the safety devices and the relative references to
the provisions of collection R of I.S.P.E.S.L. and the relative
declaration.
Power Plus Box 100 SE
Module consisting of 2 heat generators for heating and
domestic hot water production systems, complete with
I.S.P.E.S.L. components and the hydraulic separator.
Heat input from 14.4 to 76.7 kW .
5.5
bar
1 4 Safety devices
The Power Plus Box SE modular system is equipped with
the following safety devices, installed on every heating el-
ement:
with automatic reset, which, when tripped
Safety thermostat
at 90°, shuts off the burner.
Hydraulic circuit diagnostics
carrier fluid for every heating element is controlled by a
differential water pressure switch and an electronic safety
system that controls a delivery sensor and a return sensor.
The equipment is protected if there is no water or in the
case of insufficient circulation.
for the heating system pressure, which trips,
Safety valve
draining the system if circuit pressure exceeds the limit (5.4
bar).
Maximum pressure switch
Flue gas evacuation safety
the bottom of the exchanger, provokes a fault in the case
of high flue gas temperature (> 80°C). Furthermore, the
"check valve" present in the flue gas exhaust line prevents
the flue gas from passing between heating elements.
the fan speed is always monitored by a Hall-ef-
Fan safety
fect speed indicator device.
The Power Plus Box SE modulating systems are prepared
for cascade-coupling and this makes it possible to imple-
ment compact and extremely flexible central heating plants
thanks to the system's modulating ratio.
b
The tripping of the safety devices indicates a poten-
tially hazardous malfunction of the modular system,
therefore contact Technical Assistance Centre imme-
diately.
Therefore it is possible to restart the system after waiting a
brief period (see the first start-up chapter).
a
The modular system must not be operated, even tem-
porarily, if the safety devices are not functioning or
have been tampered with.
b
The safety devices must be replaced by Technical
Assistance Centre, only using original components
from the manufacturer. Refer to the spare parts cata-
logue provided with the modular system.
After making the repair, correct that the modular system is
operating properly.
the minimum flow rate of the
(ISPESL type-approved).
the flue gas sensor, located at
5
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