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R2K 24 - RAD - ING - Inst.Manual - 2002.1_CSA
2. MAINTENANCE
SUPPOR
T CENTER
2.2.9. TECHNICAL ASSEMBLYTECHNICAL ASSEMBLY
KEY
1. EXHAUST SAFETY HIGH LIMIT SWITCH
2. INTEGRATED HEAT EXCHANGER
3. BURNER UNIT
4. IONIZATION ELECTRODE
5. COMBUSTION BLOWER
6. AIR ELIMINATOR
7. CIRCULATOR
8. GAS VALVE
9. SYSTEM DRAINING TAP
10. DOMESTIC TEMPERATURE PROBE
11. WATER TEMPERATURE HIGH LIMIT SWITCH
12. CENTRAL HEATING TEMPERATURE PROBE
13. SPARK ELECTRODE
14. THERMAL EXPANSION TANK
15. AIR SUCTION TUBE
16. AIR PRESSURE SWITCH
17. IGNITION TRANSFORMER
18. PROPORTIONAL VENTURI
19. WATER PRESSURE SWITCH
20. CONDENSATE COLLECTION SIPHON
21. DIVERTER VALVE
22. FLOW SWITCH
23. CHECK VALVE
24. SYSTEM FILLING TAP
1
2
3
4
5
6
7
8
9
6
10
11
12
13
14
17
16
18
19
21
20
22
24
23
15
MAINTENANCE
fig. 33
