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1.5.5 U-Series Utility – Combi (UCHE) – Key Components
1. Heat Exchanger
2. Heat Store
3. Condensing Unit
4. Service Door
5. Pipework Assembly
6. Plate Heat Exchanger
7. Twin Head Pump
8. Condensate Trap
9. Service Door
10. Service Door Cover
11. Control Panel
12. Expansion Vessel
13. Riello RDB 2.2 Burner
14. Heat Exchanger Baffles
(see dimension drawing
for details of connections)
1.5.6 U-Series Utility – Combi (UCHE) – Control Panel
Control
Thermostat
Mains On
Lamp (Green)
High Limit Tripped
Lamp (Yellow)
Burner Lockout
Lamp (Red)
HW On/Off
Switch
CW On/Off
Switch
High Limit Thermostat Reset
(Underneath)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
