PEGASUS LN 2S
31
EN
Key
1
Arrangement for fitting an electronic controller
2
Pressure/temperature gauge
3
Manual reset safety thermostat cover
4
Manual reset fume thermostat cover
5
Flame controller reset button with 1st stage shutdown indicator
6
Flame controller reset button with 2nd stage shutdown indicator
7
2-stage boiler control thermostat
8
0 - 1 - TEST switch
10
2nd stage flame controller
11
2nd stage gas valve
12
2nd stage pilot burner assembly
13
Boiler drain cock
14
Pressure point
15
2nd stage burner assembly
16
1st stage burner assembly
17
Gas manifold
18
1st stage pilot burner assembly
19
1st stage gas valve
20
1st stage flame controller
22
Fume sampling point on fume chamber
5.3 Technical data table
5.4 Diagrams
Pressure loss
Key
A
Pressure losses m H
2
O column
B
Delivery m
3
/h
5.5 Wiring diagrams
Connection wiring diagram
fig. 14 - Electrical connection diagram
Main wiring diagram
fig. 15 - Main wiring diagram
A
Connections in broken lines to be carried out by the installer
Key
24 -
Ignition electrode
32 -
Heating circulating pump (not supplied)
44 -
Gas valve
49 -
Safety thermostat
72 -
Room thermostat (not supplied)
82 -
Detection electrode
83a -
1st stage electronic controller
83b -
2nd stage electronic controller
92 -
Fume thermostat
98 -
Switch
129 -
Reset button with indicator lamp
159 -
Test button
170 -
1st stage control thermostat
171 -
2nd stage control thermostat
MODEL
PEGASUS 67
LN 2S
PEGASUS 77
LN 2S
PEGASUS 87
LN 2S
PEGASUS 97
LN 2S
PEGASUS 107
LN 2S
Powers
Pmax
Pmin
Pmax
Pmin
Pmax
Pmin
Pmax
Pmin
Pmax
Pmin
Heating Capacity (Net
Heat Value - Hi)
kW
73.3
36.6
84.2
48.1
95.2
48.1
106
59.1
116
59.1
Useful Heating Capacity
kW
67
33.5
77
44.0
87
44.0
97
54.0
106
54.0
Gas supply
Pmax
Pmin
Pmax
Pmin
Pmax
Pmin
Pmax
Pmin
Pmax
Pmin
Pilot nozzle G20-G25
mm
2 x 0.32.2
2 x 0.32.2
2 x 0.32.2
2 x 0.32.2
2 x 0.32.2
Pilot nozzle G31
mm
2 x 0.24.1
2 x 0.24.1
2 x 0.24.1
2 x 0.24.1
2 x 0.24.1
Main nozzles G20
mm
6 x 2.75
7 x 2.75
8 x 2.75
9 x 2.75
10 x 2.75
Supply pressure G20
mbar
20
20
20
20
20
Pressure at burner G20
mbar
15
15
15
15
15
15
15
15
15
15
Delivery G20
m3/h
Main nozzles G25
mm
6 x 3.20
7 x 3.20
8 x 3.20
9 x 3.20
10 x 3.20
Supply pressure G25
mbar
25
25
25
25
25
Pressure at burner G25
mbar
12
12
12
12
12
12
12
12
12
12
Delivery G25
m3/h
8.9
4.5
10.3
5.9
11.6
5.9
13.0
7.2
14.3
7.2
Main nozzles G31
mm
6 x 1.80
7 x 1.80
8 x 1.80
9 x 1.80
10 x 1.80
Supply pressure G31
mbar
37
37
37
37
37
Pressure at burner G31
mbar
Delivery G31
kg/h
NOx emission class
5 (<70 mg/kWh)
Heating
Max. working temperature
°C
100
100
100
100
100
Max. working pressure in
heating
bar
6
6
6
6
6
No. elements
7
8
9
10
11
Min. working pressure in
heating
bar
No. burner trains
6
7
8
9
10
Boiler water content
litres
19.1
21.6
24.1
26.6
29.1
Dimensions, weights connec-
tions
Height
mm
970
970
970
970
970
Width
mm
760
850
930
1020
1100
Depth
mm
760
760
760
760
760
Weight with packing
kg
290
320
350
380
410
Gas system connection
inches
3/4”
3/4”
3/4”
3/4”
3/4”
Heating system delivery
inches
1” 1/4
1” 1/4
1” 1/4
1” 1/4
1” 1/4
Heating system return
inches
1” 1/4
1” 1/4
1” 1/4
1” 1/4
1” 1/4
Electrical power supply
Max. power input
W
15
30
30
30
30
Power supply voltage/fre-
quency
V/Hz
230/50
230/50
230/50
230/50
230/50
Electrical protection rating
IP
X0D
X0D
X0D
X0D
X0D
3,5
5,5
5
4,5
4
0,45
0,3
0,15
0
0,6
0,9
0,75
3
0,5
2,5
2
1
1,5
1,05
1,2
1,35
1,5
B
A
7.
3.8
8.
5.
10.
5.
11.
6.
12.
6.
5.
2.8
6.
3.7
7.
3.7
8.
4.
9.
4.
0.
0.
0.
0.
0.
cod. 3540S242 - Rev. 03 - 04/2018