PEGASUS LN 2S
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
9
Water pressure 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
21
Automatic air vent
22
Fume sampling point on fume chamber
5.3 Technical data table
MODEL
PEGASUS 67
LN 2S
Powers
Pmax
Pmin
Heating Capacity (Net
kW 73.3
36.6
Heat Value - Hi)
Useful Heating Capacity
kW
67
33.5
Gas supply
Pmax
Pmin
Pilot nozzle G20-G25
mm
2 x 0.32.2
Pilot nozzle G31
mm
2 x 0.24.1
Main nozzles G20
mm
6 x 2.75
Supply pressure G20
mbar
20
Pressure at burner G20
mbar
15
15
Delivery G20
m3/h
7.7
3.85
Main nozzles G25
mm
6 x 3.20
Supply pressure G25
mbar
25
Pressure at burner G25
mbar
12
12
Delivery G25
m3/h
8.9
4.5
Main nozzles G31
mm
6 x 1.80
Supply pressure G31
mbar
37
Pressure at burner G31
mbar
27
27
Delivery G31
kg/h
5.7
2.85
NOx emission class
Heating
Max. working temperature
°C
100
Max. working pressure in
bar
6
heating
No. elements
7
Min. working pressure in
bar
0.4
heating
No. burner trains
6
Boiler water content
litres
19.1
Dimensions, weights connec-
tions
Height
mm
970
Width
mm
760
Depth
mm
760
Weight with packing
kg
290
Gas system connection
inches
3/4"
Heating system delivery
inches
1" 1/4
Heating system return
inches
1" 1/4
Electrical power supply
Max. power input
W
15
Power supply voltage/fre-
V/Hz
230/50
quency
Electrical protection rating
IP
X0D
5.4 Diagrams
Pressure loss
A
1,5
1,35
1,2
1,05
0,9
0,75
0,6
0,45
0,3
0,15
0
0,5
1
1,5
2
Key
A
Pressure losses m H
2
3
B
Delivery m
/h
PEGASUS 77
PEGASUS 87
PEGASUS 97
LN 2S
LN 2S
LN 2S
Pmax
Pmin
Pmax
Pmin
Pmax
Pmin
84.2
48.1
95.2
48.1
106
59.1
77
44.0
87
44.0
97
54.0
Pmax
Pmin
Pmax
Pmin
Pmax
Pmin
2 x 0.32.2
2 x 0.32.2
2 x 0.32.2
2 x 0.24.1
2 x 0.24.1
2 x 0.24.1
7 x 2.75
8 x 2.75
9 x 2.75
20
20
20
15
15
15
15
15
15
8.8
5.0
10.0
5.0
11.1
6.2
7 x 3.20
8 x 3.20
9 x 3.20
25
25
25
12
12
12
12
12
12
10.3
5.9
11.6
5.9
13.0
7.2
7 x 1.80
8 x 1.80
9 x 1.80
37
37
37
27
27
27
27
27
27
6.5
3.75
7.4
3.75
8.2
4.6
5 (<70 mg/kWh)
100
100
100
6
6
6
8
9
10
0.4
0.4
0.4
7
8
9
21.6
24.1
26.6
970
970
970
850
930
1020
760
760
760
320
350
380
3/4"
3/4"
3/4"
1" 1/4
1" 1/4
1" 1/4
1" 1/4
1" 1/4
1" 1/4
30
30
30
230/50
230/50
230/50
X0D
X0D
X0D
2,5
3
3,5
4
4,5
5
B
O column
cod. 3540S240 - 03/2009 (Rev. 00)
5.5 Wiring diagrams
Connection wiring diagram
PEGASUS 107
LN 2S
Pmax
Pmin
116
59.1
Main wiring diagram
106
54.0
Pmax
Pmin
2 x 0.32.2
2 x 0.24.1
10 x 2.75
20
15
15
12.3
6.2
10 x 3.20
25
12
12
14.3
7.2
10 x 1.80
37
27
27
9.1
4.6
100
6
11
0.4
10
29.1
970
1100
760
Connections in broken lines to be carried out by the installer
A
410
3/4"
1" 1/4
Key
1" 1/4
24 -
Ignition electrode
32 -
Heating circulating pump (not supplied)
30
44 -
Gas valve
230/50
49 -
Safety thermostat
72 -
Room thermostat (not supplied)
X0D
82 -
Detection electrode
83a -
1st stage electronic controller
83b -
2nd stage electronic controller
92 -
Fume thermostat
98 -
Switch
114 -
Water pressure switch
129 -
Reset button with indicator lamp
159 -
Test button
170 -
1st stage control thermostat
171 -
2nd stage control thermostat
242 -
Connector for thermostatic controller
5,5
fig. 14 - Electrical connection diagram
fig. 15 - Main wiring diagram
EN
31