TABLE OF CONTENTS
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . 0
1.1
2
2.1
2.2
Performance Data . . . . . . . . . . . . . . . . . . . . 0
2.3
2.4
Overall Dimensions & Min. Clearances . . . . 0
2.5
Concentric Air / Flue Duct Specifications . . 0
2.6
Specification for Open Flued B33 Applications 0
2.7
Spec for Twin Flued (Type C53) Applications 0
2.8
2.9
3
3.1
Statutory Requirements . . . . . . . . . . . . . . . . 0
3.2
3.3
3.4
3.5
3.6
Gas Supply . . . . . . . . . . . . . . . . . . . . . . . . . . 0
3.7
3.8
Draining Tap . . . . . . . . . . . . . . . . . . . . . . . . . 0
3.9
Safety Valve Open Vented System . . . . . . . 0
3.10 Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
3.11 Flow Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
3.13 Open Vented Water System. . . . . . . . . . . . . 0
3.14 Domestic Hot Water System . . . . . . . . . . . . 0
3.15 Sealed Water System. . . . . . . . . . . . . . . . . . 0
3.16 Safety Valve Sealed System . . . . . . . . . . . . 0
6
Routine Servicing . . . . . . . . . . . . . . . . . . . 0
6.1
Combustion Check . . . . . . . . . . . . . . . . . . 0
6.2 Gas Control Valve, Fan & Burner Assembly 0
6.3 Burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
6.4 Ignition & Detection Electrodes. . . . . . . . . . 0
6.5 Combustion Chamber & Heat Exchanger . 0
6.6 Condensate Drain . . . . . . . . . . . . . . . . . . . . 0
6.7 Sealed Water System. . . . . . . . . . . . . . . . . 0
6.8 Re-assembly & Re-commissioning . . . . . . 0
6.9 Final Checks . . . . . . . . . . . . . . . . . . . . . . . 0
1.2 General Description . . . . . . . . . . . . . . . . . . 0
3.17 Expansion Vessel . . . . . . . . . . . . . . . . . . . . . 0
3.18 Pressure Gauge . . . . . . . . . . . . . . . . . . . . . . 0
3.19 Water Makeup . . . . . . . . . . . . . . . . . . . . . . . 0
3.20 Filling a Sealed Water System . . . . . . . . . . . 0
3.21 Electricity Supply . . . . . . . . . . . . . . . . . . . . . 0
4
4.1
4.2
4.3
4.4
Central Heating Service Connections . . . . . 0
4.5
Gas Connection . . . . . . . . . . . . . . . . . . . . . . 0
4.6
4.7
Air / Flue Duct Installation . . . . . . . . . . . . . . 0
4.8
5
5.1
5.2
5.3
Final Checks . . . . . . . . . . . . . . . . . . . . . . . . . 0
5.4
Lockout / Reset Indication . . . . . . . . . . . . . . 0
5.5
5.6
5.7
5.8
5.9
5.10 Gas Conversion . . . . . . . . . . . . . . . . . . . . . . 0
7
7.1
8
8.1
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
9
1