38
1.1
INTRODUCTION
The
“RMG”
are hot water generators
designed for medium-sized heating
plants. Are designed and built in accor-
dance with the european directives
90/396/CEE,
89/336/CEE,
73/23/CEE, 92/42/CEE and with
the european specification pr EN 656.
These appliances can be fired by natu-
ral gas (methane) and butane gas
(G30) or propane gas (G31). 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
Fig. 1
R C.H. return
1
1/
2
”
M C.H. flow
1
1/
2
”
G Gas connection
1”
S Boiler/filling drain
3/4”
L
D
mm
ø mm
RMG 70
840
180
RMG 80
940
180
RMG 90
1040
200
RMG 100
1140
225
1.3
TECHNICAL FEATURES
RMG 70
RMG 80
RMG 90
RMG 100
Heat output
kW
49.1-70.1
56.0-78.7
63.0-90.0
69.9-98.6
Heat input
kW
54.5-77.9
62.2-87.4
70.0-100.0
77.7-109.5
Sections
n°
8
9
10
11
Power consumption
W
16
16
16
16
Maximum water head
bar
4
4
4
4
Test pressure
bar
6
6
6
6
Water content
l
27
30
33
36
Category
II
2H3+
II
2H3+
II
2H3+
II
2H3+
Type
B
11BS
B
11BS
B
11BS
B
11BS
Smokes temperature
°C
158
160
160
144
Smokes flow
gr/s
49
52
63
81
Maximum temperature
°C
95
95
95
95
Main burner nozzles
Quantity
n°
7
8
9
10
Methane
ø mm
2.95
2.95
2.95
2.95
G30 - G31
ø mm
1.70
1.70
1.70
1.70
Gas consumption *
Methane
m
3
s/h
8.2
9.2
10.6
11.6
Butane (G30)
kg/h
6.0
6.8
7.7
8.5
Propane (G31)
kg/h
5.9
6.7
7.6
8.3
Burner gas pressure
Methane
mbar
4.5 - 9.3
4.6 - 9.1
4.7 - 9.3
4.7 - 9.3
Butane (G30)
mbar
12.2 - 25.2
12.3 - 25.4
12.0 - 25.1
12.5 - 25.1
Propane (G31)
mbar
16.4 - 32.6
16.1 - 30.2
15.6 - 30.0
16.6 - 32.7
Gas supply pressure
Methane
mbar
20
20
20
20
Butane (G30)
mbar
29
29
29
29
Propane (G31)
mbar
37
37
37
37
Weight
kg
238
266
294
322
* The gas consumptions refer to the calorific value at standard conditions at 15°C - 1013 mbar.
