HAMWORTHY HEATING LTD
7
WESSEX MODU
MAX
100 SERIES
500001123/C
Figure 4.3 – Flue Connection Point
Flue Connection
4.3 Flueing
•
Flue termination, routing and construction must comply with the requirements of the
Clean Air Act 1956, BS 6644 BS 5440 and IGE/UP/10.
•
The Wessex Modu
Max
110/120 can be installed as a room sealed boiler using the flue
components supplied by Hamworthy Heating - refer to Appendix C for installation
details.
•
Wessex Modu
Max 2
and 3 high stacked models must use the headers provided with the
boiler prior to any connection to the flue system. A condense trap (32mm dia.) is
supplied with the flue header.
•
Any flue must be self supporting and separable from the boiler for servicing
requirements.
•
Due to the low flue gas temperature, 50°C (condensing) - 135
°C (non-condensing),
condensation will occur in the flue, flue materials must be non-corrosive and utilise fully
sealing joints.
•
Flue construction is recommended of a twin wall, insulated type to maintain buoyancy
within the flue.
•
Adequate facilities must be provided for draining the flue condensation.
•
Horizontal flue runs must be kept as short as possible and be inclined at minimum 2°
towards the terminal.
•
The flue system must be designed acknowledging that there is a positive pressure of
150pa generated by the boiler combustion fan.
•
Connecting flue systems must not be smaller in internal diameter than the boiler
connection.
•
Connecting flue systems must be designed to deliver the necessary condition at the
connection to the boiler.
