Sime METRO - Description of the Boiler

1.1 INTRODUCTION
“METRÒ” boilers are gas-fired thermal
appliances for central heating and domestic
hot water production, designed and manu-
factured to satisfy the needs of multiple
dwelling and modern plant requirements.
They comply with the european directives
90/396/CEE, 89/336/CEE, 73/23/CEE,
92/42/CEE and with the european specifi-
cations EN 297 - EN 483.
These appliances can be fired by natural
gas (methane) and butane gas (G30) or
propane gas (G31).
This booklet provides the instructions for
the following boiler models:
– “METRÒ 25 OF” with electronic ignition
and modulation, natural draught.
– “METRÒ 25 BF” with electronic ignition and
modulation, room sealed forced-draught.
The instructions given in this manual are
provided to ensure proper installation and
perfect operation of the appliance
70
Ø 130 205
110
370
450
70 70 70 70
RMG EU
47,5 47,5
865
732,5 31
80
205
110
370
450
70 70 70 70
RMG EU
47,5 47,5
865
732,5 31
86,5
ø 100/60
80
1 DESCRIPTION OF THE BOILER
1.2 DIMENSIONS
1.2.1 “METRÒ 25 OF” model
Fig. 1
Fig. 1/a
1.2.2 “METRÒ 25 BF” model
CONNECTIONS
R C.H. return 3/4”
M C.H. flow 3/4”
G Gas connection 3/4”
E D.H.W. inlet 1/2”
U D.H.W. outlet 1/2”
CONNECTIONS
R C.H. return 3/4”
M C.H. flow 3/4”
G Gas connection 3/4”
E D.H.W. inlet 1/2”
U D.H.W. outlet 1/2”