andrews BUFFER-GL1000-8, Installation And Service Manual

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Limitations
• The Andrews buffer vessel should not be used in any of the following instances:
• Solid fuel boilers or any other boiler in which the energy input is not under
effective
thermostatic control unless additional and appropriate safety measures are
installed.
• Gravity circulation primaries.
• Steam heating plant unless additional and appropriate safety devices are installed.
• Ascending spray type bidets or any other Class 5 back syphonage risk requiring
that a Type AA, AB, AD or AG air gap be employed.
• Water supplies that have either inadequate pressure or where the supply may be
intermittent.
• Situations where it is not possible to safely pipe away any discharge from the safety
valves.
• Areas where the water consistently contains a high proportion of solids, eg.
suspended
matter that could block the strainer, unless adequate filtration can be ensured.
• The installation must be carried out in accordance with the relevant requirements
of the appropriate Building Regulations: either The Building Regulations
(England), The Building Regulations (Scotland) or Building Regulations (Northern
Ireland), The Water Fittings Regulations (England and Wales) or Water Byelaws
(Scotland).
Installation & Commissioning
General
installation
Pipe fittings
All pipe connections to the Andrews buffer are made via BSP threaded pipe connection
directly to the unit.
Installation
Flush supply pipe work before connection to remove all flux and debris prior to fitting
the inlet controls. Failure to do this may result in irreparable damage to the buffer and
will invalidate the warranty.
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