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42
1.1
INTRODUCTION
The new
“Estelle B4/5 INOX BF TS”
series of cast iron boilers, for heating
and the production of domestic hot
water, has been designed in compli-
ance with the European Directive EEC
92/42.
They use light oil and have a perfectly
balanced combustion with a very high
thermal efficiency for economical per-
formance.
1
BOILER DESCRIPTION
550
=
=
728
69
275
87
8
600
10
1
51
1
16
5
1
4
5
1
430
28
4
70
ø 1
30
S2
U
C
E
M
R
S
1.2
DIMENSIONAL DETAILS
Fig. 1
1.3
TECHNICAL FEATURES
KEY
M
C.H. flow
R 1” (UNI-ISO 7/1)
R
C.H. return
Rp 1 1/4” (UNI-ISO 7/1)
U
D.H.W. outlet
G 3/4” (UNI-ISO 228/1)
E
D.C.W. inlet
G 3/4” (UNI-ISO 228/1)
C
Recirculation
G 3/4” (UNI-ISO 228/1)
S
Boiler drain
S2 Boiler safety valve drain
B4 INOX BF TS
B5 INOX BF TS
Output
kW 25.08
32.4
kcal/h
21,569
27,864
Input
kW 27.0
34.8
kcal/h
23,220
29,928
Class efficiency (EEC 92/42)
Sections
n°
4
5
Adsorbed power consumption
W
95
95
Maximum water head
bar
4
4
Water content
l
20.3
24.3
Smoke loss of head
mbar 0.16
0.21
Combustion chamber pressure
mbar –0.02
–0.02
Smokes temperature
°C
143
171
Smokes flow
m
3
n/h
31.6
41.3
Smokes volume
dm
3
9.6
12
CO
2
%
12.5
12.5
Heating adjustment range
°C
30÷85
30÷85
D.H.W. adjustment range
°C
30÷60
30÷60
D.H.W. production
D.H.W. tank capacity
l
110
110
D.H.W. flow rate EN 625
l/min
19
20
D.H.W. flow rate
∆
t 30°C
l/h
714
930
Recovery time from 25°C to 55°C
min
12
10
D.H.W. tank max. water head
bar
6
6
Weight
kg
203
229