10
from floor natural gas, 250 mm LPG)– 4
cm²/KW of net heat input
A single generator (48KW net input) would
require 96 cm² at high level and 192 cm² at
low level.
Installed in a compartment or enclosure
High level (within 15% of the room height
from ceiling) - 5 cm²/KW of net heat input
Low level (low as possible within 1 metre
from floor natural gas, 250 mm LPG) – 10
cm²/KW of net heat input.
A single generator (48KW net input) would
require 240 cm² at high level and 1480 cm²
at low level.
2.2.2 Outdoors
“MURELLE EQUIPE 100-150 BOX ErP”
heat modules can also be installed out-
doors with the specific exhaust for single
module code 8089530.
2.3 SYSTEM REQUIREMENTS
The heating system should be flushed
prior to the connection of the heating
modules. The system should be treated in
accordance with BS 7593. Sime Ltd recom-
mend only the use of Fernox products for
the flushing and final treatment of the sys-
tem water. This is particularly important in
hard water areas.
It is recommended that the inhibitor
concentration is checked at installation,
system modification and at every service
in accordance with the manufacturers
instructions. Test kits are available from
inhibitor stockist.
WARNING: Failure to clean the heat sys-
tem or add an adequate inhibitor invali-
dates the device’s warranty.
Gas connections must be made in accord-
ance with current standards and regula-
tions.
When dimensioning gas pipes from the
meter to the module, both capacity volume
(consumption) in m
3
/h and gas density
must be taken into account.
System pipe sections must be able to
guarantee sufficient supply to cover maxi-
mum demand, limiting pressure loss
between the meter and any utility device
no greater than 1.0 mbar for second family
gas (natural gas).
A sticker inside the module includes iden-
tification and gas type data specific to the
module.
2.3.1 Condensation
drain connection
The condensate drain must be connected
to the civil drain by a pipe with minimum 5
mm per meter gradient for condensation
collection.
Only stainless steel or plastic pipes are
suitable to convey condensate.
2.3.2 Filter on the
gas pipe
The gas valve on each generator is sup-
plied ex factory with an inlet filter, which,
however, is not adequate to entrap all the
impurities in the gas or in gas main pipes.
To prevent malfunctioning of the valve, or
in certain cases even to cut out the safety
device with which the valve is equipped,
install an adequate filter on the gas pipe.
2.5 FILLING THE SYSTEM
Cold system filling pressure must be 1
bar. The system must be filled slowly so
that air bubbles are released through the
specific escapes.
Fig. 5
STAFFA TELAIO
CALDAIA
GMR
Pmin
Pmax
