42
1.1
INTRODUCTION
The.“RMG Mk.II”.are.hot.water.genera-
tors.designed.for.medium-sized.heating.
plants...These.appliances.can.be.fired.by.
natural. 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)
P
D
475
S
L
A
75
R
G
M
195
1000
65
485
665
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.
P.
A
.
mm. ø.mm. mm. mm
70 Mk.II.
840.
180. 645. 415
80 Mk.II.
940.
180. 645. 415
90 Mk.II. 1040. 200. 645. 415
100 Mk.II 1140. 225. 645. 415
110 Mk.II 1240. 250. 670. 400
1.3
TECHNICAL FEATURES
70 Mk.II
80 Mk.II
90 Mk.II
100 Mk.II
110 Mk.II
Heat output
kW.
49.1-70.1.
56.0-78.7.
63.0-90.0.
69.9-98.6.
74.7-107.9
Heat input
kW.
54.5-77.9.
62.2-87.4.
70.0-100.0.
77.7-109.5.
85.5-120.5
Sections
n°.
8.
9.
10.
11.
12
Power consumption
W
16.
16.
16.
16.
69
Maximum water head
bar.
4.
4.
4.
4.
4
Test pressure
bar.
6.
6.
6.
6.
6
Water content.
l.
25.
28.
31.
34.
37
Category
II
2H3+
.
II
2H3+
.
II
2H3+
.
II
2H3+
.
II
2H3+
Type
B
11BS
.
B
11BS
.
B
11BS
.
B
11BS
..
B
11
Smokes temperature.
°C.
158.
160.
160.
144.
140
Smokes flow.
kg/h.
170.
180.
230.
287.
330
Maximum temperature
°C.
95.
95.
95.
95.
95
C.H. setting range
°C.
40÷85.
40÷85.
40÷85.
40÷85.
40÷85
Main burner nozzles
Quantity.
n°.
7.
8.
9.
10.
11
Natural.gas.
ø.mm.
2.95.
2.95.
2.95.
2.95.
2.95
G30.-.G31.
ø.mm.
1.70.
1.70.
1.70.
1.70.
1.70
Gas consumption *
Natural.gas.
m
3
st/h.
8.2.
9.2.
10.6.
11.6.
12.7
Butane.(G30).
kg/h.
6.0.
6.8.
7.7.
8.5.
9.3
Propane.(G31).
kg/h.
5.9.
6.7.
7.6.
8.3.
9.1
Burner gas pressure
Natural.gas.
mbar.
4.5.-.9.3.
4.6.-.9.1.
4.7.-.9.3.
4.7.-.9.3.
4.6.-.9.3
Butane.(G30).
mbar.
12.2.-.25.2.
12.3.-.25.4.
12.0.-.25.1.
12.5.-.25.1.
12.6.-.25.6
Propane.(G31).
mbar.
16.4.-.32.6.
16.1.-.30.2.
15.6.-.30.0.
16.6.-.32.7.
16.6.-.34.3
Gas supply pressure
Natural.gas.
mbar.
20.
20.
20.
20.
20
Butane.(G30).
mbar.
30.
30.
30.
30.
30
Propane.(G31).
mbar.
37.
37.
37.
37.
37
Weight .
kg
238.
266.
294.
322.
350
*..The.gas.consumptions.refer.to.the.calorific.value.at.standard.conditions.at.15°C.-.1013.mbar.
