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R2KA 24 /20 - RAD - ING - Manuale - 1806.1_SK.2
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2. MAINTENANCE
SUPPOR
T
C
ENTRE
2.2.10. HYDRAULIC BOARD
KEY
R. HEATING RETURN
C. DOMESTIC HOT WATER OUTLET
G. GAS INLET
SC. CONDENSATE DRAIN
F. COLD WATER INLET
A. HEATING FORWARD
1. FUMES SAFETY THERMOFUSE
2. INTEGRATED HEAT EXCHANGER
3. BURNER
UNIT
4. ELECTRIC
FAN
5. EXPANSION
TANK
6. AIR RELIEF VALVE
7. CIRCULATOR
8. SAFETY VALVE 3 bar
9. SYSTEM DRAINING TAP
10. DOMESTIC CIRCUIT PROBE
11. HEATING PROBE
12. SAFETY THERMOSTAT
13. AIR SUCTION TUBE
14. PROPORTIONAL VENTURI
15. GAS VALVE
16. BY-PASS
17. WATER PRESSURE SWITCH
18. DIVERTER VALVE
19. FLOW SWITCH
20. CONDENSATE COLLECTION SIPHON
21. SYSTEM FILLING TAP
22. ANODE
23. CYLINDER
24. SAFETY VALVE 8 bar
25. EXPANSION TANK D.H.W.
26. CYLINDER DRAINING TAP
R
G
F
C
A
SC
2
4
5
6
8
6
13
14
15
22
23
6
24
1
7
9
11
12
17
18
19
20
21
25
26
3
16
10