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R2KA 24 /8 - RAD - ING - Manuale - 1507.1
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2. MAINTENANCE
SUPPOR
T
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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. CONDENSATE COLLECTION SIPHON
7. AIR RELIEF VALVE
8. CIRCULATOR
9. SAFETY VALVE 3 bar
10. SYSTEM DRAINING TAP
11. FLOW LIMITER
12. HEATING PROBE
13. SAFETY THERMOSTAT
14. AIR SUCTION TUBE
15. PROPORTIONAL VENTURI
16. GAS VALVE
17. BY-PASS
18. WATER PRESSURE SWITCH
19. DIVERTER VALVE
20. FLOW SWITCH
21. NO-RETURN VALVE
22. SYSTEM FILLING TAP
23. ANODE
24. CYLINDER
25. SAFETY VALVE 8 bar
26. DOMESTIC CIRCUIT PROBE
27. CYLINDER DRAINING TAP
R
G
F
C
A
SC
2
4
5
7
9
7
14
15
16
23
24
25
1
8
10
12
13
18
19
20
21
22
27
26
3
11
6
17