80
1.1 INTRODUCTION
MURELLE EV
are the gas fuelled burner
groups for heating and the production of
hot sanitary water, constructed to satisfy
the needs of collective residential housing
and modern plant. They are apparatuses
which conform to the European directives
2009/142/CE, 2004/108/CE,
2006/95/CE and 92/42/CE. The can be
fuelled by natural gas (G20) or LPG (G30-
G31). This booklet gives the instructions for
the following models:
– MURELLE EV 25-30 OF
with electronic
modulation ignition, open combustion
chamber with natural draw
– MURELLE EV 25-30-35 BF
with electro-
nic modulation ignition, sealed combu-
stion chamber forced flow.
–
MURELLE EV 20-25 BFT
only heating,
with electronic modulation ignition, sea-
led combustion chamber and forced
flow, which can be connected to D.H.W.
storage tank.
The instructions given in this manual are
provided to ensure proper installation and
perfect operation of the appliance.
1
DESCRIPTION OF THE BOILER
1.2
DIMENSIONS
1.2.1
“25-30 OF” models (fig. 1)
350
124
198
D
=
=
55
55
=
=
65
65 65
65
L
22,5
71
8
700
65
D
Fig. 1
CONNECTIONS
R C.H.
return
G 3/4” (UNI-ISO 228/1)
M C.H.
flow
G 3/4” (UNI-ISO 228/1)
G Gas
connection
G 3/4” (UNI-ISO 228/1)
E D.H.W.
inlet
G 1/2” (UNI-ISO 228/1)
U D.H.W.
outlet
G 1/2” (UNI-ISO 228/1)
DIMENSIONS
25
30
L mm
400
450
D mm
130
150
Содержание MURELLE EV 20 BFT
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