VMP-IOMM-2018-2
Fulton Ltd
Page 8
INSTALLATION - 2
The height and type of flue will be subject to local planning regulations and approvals.
The following information is only intended to provide assistance for the installation of a simple
flue. Where multi-boiler flues or difficulties are experienced, specialist advice should be obtained.
The flue diameter must be the same or larger than the flue flange provided with the boiler and the
outlet should be at least 1 metre higher than the nearest ridge to avoid down draughts. Where a
chimney cowl is fitted, care should be taken to ensure that the distance between the lowest point
of the cowl and the top of the flue is 1.5 x the diameter of the flue and that it is of the terminal
cone type.
Note:
If the flue layout is such that it may produce an excessive up-draught, a draught stabiliser may be required.
Note:
Avoid fitting
90°
elbows whenever possible, if unavoidable compensate by increasing the flue diameter.
Note:
Ensure all flue pipes from the boiler to the main flue have a rising pitch.
2.4.2
BLOWDOWN VALVES
There are six blowdown valves on the boiler, two main boiler blowdown valves at the bottom of
the boiler, two water bottle blowdown valves and two water level gauge (sight glass) blowdown
valves.
All of these valves must be connected to a blowdown receptacle of approved design.
Regulations exist covering such items and care must be taken to ensure compliance with these
regulations.
If in doubt regarding blowdown arrangements, consult Fulton Ltd or Health and Safety Executive
Guidance Note PM60 which covers blowdown tanks and associated pipework installation.
WARNING
Never discharge blowdown from the boiler directly to a drain. Where a high level of blowdown or automatic
blowdown systems are installed, serious consideration should be given to fitting a Blowdown After Cooling
System.
!
2.4.1
FLUE OUTLET
2.4
CONNECTIONS
CAUTION
Concentration levels of only a few ppm of chlorine containing compounds in combustion air can
produce serious corrosion of the flue over long periods of time. High chlorine containing compounds
such as carbon tetrachloride or perchloroethylene would be prime suspects.
!
WARNING
To maintain a reasonable temperature in the equipment area and ensure safety to personnel, the
section of the chimney duct within the building should be insulated.
!
Содержание VMP Series
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