4
HEATING BOILER: Astra G-50
2. TecHnIcal DescRIPTIon
• GeneRal VIeW of THe boIleR
fig. 1 General view of the boiler
A – front view; B – rear view; C – top view; D - section.
1. Front control panel; 2. Rooftop cover; 3. Handle of the upper flue damper; 4. Door of the fuel chamber; 5. Adjustable support legs; 6. Flow water pipe;
7. Rear control panel; 8. Sensor immersion pocket ½” of the safety temperature limiter 95°C valve; 9. Secondary air regulation damper; 10. Ventilator and
ventilator duct inspection aperture; 11. Return water pipe; 12. Water drain nipple; 13. Connections of the cooling serpentine; 14. Flue pipe; 15. Flue cleaning
cap; 17. Safety ventilator shutdown 95°C thermostat sensor; 18. Water temperature sensor; 19. Upper combustion chamber opening to the flue; 20.
Primary air inlet nozzle; 21. Secondary air inlet opening; 22. Ceramic burner; 23. Ceramic chopper; 24. Ceramic segment; 25. Opening to the flue.
astra G boiler model
b
l
H
h
k
D
d
n
s
astra G-50
660
1230
1315
1075
150
152
G1 1/2“
210
180
2
4
5
3
19
20
23
15
25
24
17
d
H
h
12
6
13
B
11
8
10
22
21
1
7
B
S
N
9
18
A
C
D
d
k
D
L
14
10
