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ATLAS D
5. TECHNICAL DATA AND CHARACTERISTICS
5.1 Dimensions, connections and main components
fig. 19 - Front view
10
250
275
fig. 21 - Side view
EN
40
500
278
a6
a5
C
275
11
250
fig. 20 - Rear
F
246
cod. 3541H744 - Rev. 01 - 11/2022
cod. 3541H742 - Rev. 00 - 11/2019
Ø mm
ATLAS D 25
120÷130
ATLAS D 37
120÷130
ATLAS D 50
120÷130
ATLAS D 63
120÷130
ATLAS D 75
120÷130
10
System delivery 1" 1/2"
11
System return 1" 1/2"
246
Pressure transducer
275
Heating system drain cock
278
Double sensor (heating + safety)
a5
Burner hole
a6
Burner connection
5.2 Loss of head
Pressure loss water side
60
50
40
30
20
10
0
2000
2500
3000
fig. 22 - Pressure loss
A
mbar
B
Flowrate l/h
5.3 Technical data table
Data
Unit
Model
Number of elements
no.
Max. heating capacity
kW
Min. heating capacity
kW
Max. heat output in heating
kW
Min. heat output in heating
kW
Efficiency Pmax (80-60°C)
%
Efficiency 30%
%
Efficiency class Directive 92/42 EEC
Max. working pressure in heating
bar
Min. working pressure in heating
bar
Max. heating temperature
°C
Heating water content
Protection rating
IP
Power supply voltage
V/Hz
Electrical power input
W
Burner MAX power input
W
Empty weight
kg
Combustion chamber length
mm
Combustion chamber diameter
mm
Pressure loss on fume side
mbar
ATLAS D
C
F
a5
mm
Ø mm
400
115
500
115
600
115
700
115
800
115
3500
4000
4500
5000
B
Value
Value
Value
Value
ATLAS D
ATLAS D
ATLAS D
ATLAS D
25
37
50
63
3
4
5
6
28.3
41.9
56.6
71.3
22.4
22.3
33.4
44.5
25
37
50
63
20
20
30
40
88.2
88.3
88.4
88.4
92.2
91.7
91.4
91.0
6
6
6
6
0.8
0.8
0.8
0.8
100
100
100
100
L
18
23
28
33
X0D
X0D
X0D
X0D
230/50
230/50
230/50
230/50
3
3
3
3
170
180
230
250
127
166
205
244
350
450
550
650
300
300
300
300
0.11
0.35
0.38
0.5
EN
a6
Ø mm
150
150
150
150
150
5500
Value
ATLAS D
75
7
84.6
(Q)
55.8
(Q)
75
(P)
50
(P)
88.7
90.5
6
(PMS)
0.8
100
(tmax)
38
X0D
230/50
3
250
283
750
300
0.6
37
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