1
DESCRIPTION OF THE BOILER
1. 1
INTRODUCTION
ES
MURELLE HE are premixed gas condensa-
PT
tion thermal modules that employ a micro-
GB
1.2
DIMENSIONS
1.2. 1
MURELLE HE 12-20-25-30-35 BFT
170
68
processor-based technology to control and
manage all the functions.
All modules are compliant with European
Directives 90/396/CE, 2004/108/CE,
C
G
M
R
42,5
450
FIXTURES
R
C.H. return
M C.H. flow
G
Gas connection
R3 D.H.W. tank return
M2 D.H.W. tank output
S3 Condensation outlet
C
System loading
ATTENTION:
The "BFT" version is designed for the connection of a remote
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 4.
All modules are designed to be used by qualified technical per-
sonnel.
135
S3
G
107
125 60
350
G 3/4" (UNI - ISO 228/1)
G 3/4" (UNI - ISO 228/1)
G 3/4" (UNI - ISO 228/1)
G 3/4" (UNI - ISO 228/1)
G 3/4" (UNI - ISO 228/1)
ø 25
G 1/2" (UNI - ISO 228/1)
2006/95/CE and 92/42/CE. For opti-
mum installation and operation, always fol-
low t he ins tr uctions pr ovided in t his
manual.
385
=
R M G
= =
C
85 70 70
R3 M2
71
40
=
92,5
Fig. 1