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1.5 Components
1.5.1 U-Series Utility – Casing Components
1. Boiler Assembly
2. Top Casing (removable)
3. Rear Casing
4. Side Casing
5. Front Casing (removable)
1.5.2 U-Series Utility – Pre-Wired (UHE) – Key Components
1. Heat Exchanger
2. Condensing Unit
3. Auto Air Vent
4. Service Door
5. ‘Dual-Safe’ Thermostat
6. Heat Exchanger Baffles
7. Service Door
8. Service Door Cover
9. Condensate Trap
10. Riello RDB 2.2 Burner
11. Heating Flow Connection
12. Heating Return Connection
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4
5
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2
12
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5
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9
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