48
R1BK_50-RAD-ING-Manuale-1812.1_SK.3
2 S
ch
em
a i
dr
au
lic
o_
R
1B
K 5
0_
SK
.3
_
EN
2. MAINTENANCE
SUPPOR
T CENTRE
2.2.10. HYDRAULIC BOARD
KEY
1. FUMES SAFETY THERMOFUSE
2. UNIT HEAT EXCHANGER
3. BURNER UNIT
4. DETECTION ELECTRODE
5. HEATING RETURN PROBE
6. ELECTRIC FAN
7. CIRCULATOR
8. GAS VALVE
9. AIR RELIEF VALVE
10. HEATING PROBE
11. SAFETY THERMOSTAT
12. LIGHT UP ELECTRODE
13. AIR SUCTION TUBE
14. START-UP TRANSFORMER
15. PROPORTIONAL VENTURI
16. WATER PRESSURE SWITCH
17. CONDENSATE COLLECTION SIPHON
18. STRAINER
19. SYSTEM DRAIN VALVE
20. HYDRAULIC SEPARATOR
21. SAFETY VALVE
22. ISOLATING VALVE
23. ISOLATING THREE-WAY VALVE
24. GAS VALVE
25. Ø1”1/2 HEATING FLOW FITTING
26. Ø1”1/2 HEATING RETURN FITTING
27. BOX
28. EXPANSION VESSEL CONNECTION
29. MANUAL AIR RELIEF VALVE
30. FLUE MANIFOLD INTEGRATED NON-RETURN
VALVE
13
07
12
04
14
16
15
06
30
02
03
01
09
10
11
17
05
10
30
08
24
23
23
22
22
20
22
18
19
27
28
29
25
26
21
MAINTENANCE
HEATING
RETURN
HEATING
RETURN
HEATING
FLOW
HEATING
FLOW
GAS INLET
CONDENSATE
DRAIN