Fig. 1/a
FIXTURES
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)
S3 Condensation outlet ø 25
1.1 INTRODUCTION
MURELLE HM are premixed gas conden-
sation thermal modules that employ a
microprocessor-based technology to con-
trol and manage all the functions. The wide
field of modulation of the heat power (from
10% to 100%), decreases the switch-on
and off cycles and, in case of integration
with solar systems, guarantees maximum
D.H.W. comfort.
All modules are compliant with European
Directives 2009/142/CE,
2004/108/CE, 2006/95/CE and
92/42/CE.
For optimum installation and operation,
always follow the instructions provided in
this manual.
1 DESCRIPTION OF THE BOILER
Fig. 1
FIXTURES
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)
R3 D.H.W. tank return G 3/4” (UNI - ISO 228/1)
M2 D.H.W. tank flow G 3/4” (UNI - ISO 228/1)
S3 Condensation outlet ø 25
1.2 DIMENSIONS
1.2.1 Murelle HM 25 T - 35 T (fig. 1)
ATTENTION:
The “25 T - 35 T” version is desi-
gned for the connection of a remo-
te boiler, to use it as a boiler ONLY
FOR HEATING it is necessary:
- to disconnect the D.H.W. sensor
(SB)
- set the PAR 2 to 5.
All modules are designed to be
used by qualified technical person-
nel.