7
General information
Greenstar Danesmoor Utility
ErP
– 6 720 813 330 (2014/09)
5
General information
5.1
Ventilation information
Boiler location
**The boiler can be installed under a work top as long as:
▶ The work top above the boiler is easily removable for
maintenance.
▶ There is at least 10mm clearance above the boiler.
▶ The front of the boiler is not enclosed.
Ventilation
Air vents must be functional at all times and the air supply must
not be restricted or contaminated.
The boiler clearances must meet the minimum shown below for
servicing and venting purposes.
* If this clearance is less than 75mm the flue "knock-out" panel
sections must be removed to improve air circulation and
cooling.
Do not place clothes or objects to hinder the air circulation
required by the boiler.
Fig. 3
Conventional flue boilers require an adequate supply of fresh
air which must be delivered to the boiler for combustion
purposes through a permanent inlet, such as an air brick, into
the area where the boiler is situated.
If a cupboard or compartment which is to be used for storage or
airing is built around the boiler after installation there must be
a non-combustible partition around the boiler. Further
information can be found in BS 5410 which also describes
venting requirements.
Conventional flued boilers
Minimum area of air inlet for combustion:
248cm2 for 32/50kW appliances
358cm2 for 50/70kW appliances
Minimum air vent area (cm2) for boilers installed in a
compartment
ANNUAL
SERVICE CLEARANCES
600mm
300mm
10mm
10mm
720mm
1415mm
1312mm
6 720 813 330-05.1TL
Conventional flue
kW
Internal ventilation
1)
1) Internal air to and from a space/room inside the building.
External ventilation
2)
2) External air to and from directly outside the building.
High Level
Low Level High Level Low Level
32/50
495
743
248
495
50/70
715
1073
358
715
Table 2
Room Sealed flue
kW
Internal ventilation1)
External ventilation2)
High Level
Low Level High Level Low Level
32/50
495
495
248
248
50/70
715
715
358
358
Table 3