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6
7
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1.5.7 U-Series Utility – Pumped (UP70 & UP90) – Key Components
1. Heat Exchanger
2. Pipework Assembly
3. Pressure Relief Valve
4. Auto Air Vent
5. Circulating Pump
6. ‘Dual-Safe’ Thermostat
7. Heat Exchanger Baffles
8. Service Door
9. Service Door Cover
10. Riello RDB 2.2 Burner
11. Heating Flow
Connection
12. Heating Return
Connection
5
3
9
1. Primary Heat Exchanger
2. Secondary Heat Exchanger
3. Pipework Assembly
4. Pressure Relief Valve
5. Circulating Pump
6. Auto Air Vent
7. ‘Dual-Safe’ Thermostat
8. Secondary Exchanger
Inspection Lid
9. Primary Exchanger Baffles
10. Service Door
11. Service Door Cover
12. Riello RDB 2.2 Burner
13. Flue Opening
14. Heating Flow Connection
15. Heating Return Connection
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7
5
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1.5.8 U-Series Utility – Pumped (UP120) – Key Components
14
4
9
10
11
12
12
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