HAMWORTHY HEATING LTD
7
PUREWELL VariHeat he
500001155/F
Figure 4.3 – Flue Connection Point
Flue Connection as delivered
4.3 Flues
•
Flue termination, routing and construction must comply with the requirements of the
Clean Air Act 1993—Chimney Memorandum, BS 6644 BS 5440 and IGE/UP/10.
•
Any flue must be self supporting and separable from the boiler for servicing
requirements.
•
Due to the possible flue gas temperature, 60 — 190°C, consideration must be given to
the construction and material of the flue system with fully sealed joints due to pressure
and condense in flue.
•
Flue construction is recommended of a twin wall, insulated type to maintain buoyancy
within the flue.
•
Care should be taken to ensure that the flue system is installed in such a way that any
condensation produced on start up, will drain away naturally.
•
Horizontal flue runs must be kept as short as possible and be inclined at minimum 2°
towards the termination.
•
The flue system must be designed acknowledging that there may be a positive pressure
generated by the boiler combustion fan. Refer to Appendix C - Fig C1.
•
Connecting flue systems may be smaller in internal diameter than the boiler
connection. Refer to Hamworthy Heating Technical Dept for assistance.
Flue Connection fitted
Flue fixing bracket
Flue Pipe
Elbow
Содержание PUREWELL VariHeat he
Страница 58: ...HAMWORTHY HEATING LTD 53 PUREWELL VariHeat he 500001155 F NOTES...
Страница 61: ...Notes...