Iss A 05/14
8
5 Maintenance / Repair
5.1 General Maintenance
The heat exchanger should require little attention in service, however if cleaning the tube
stack the following notes should be used as a guide. Note new gaskets are required if the
end covers are removed.
5.2
Exhaust Gas Heat Exchanger Cleaning
a) Removal of the end covers or access plates, depending on version, allows access
to the tube plates.
b) Wash the tube plates and tubes using a hand held hose or lance. An industrial
steam cleaner can be used if available.
c) Tube brushes can be used to clean through each tube to aid in removing stubborn
deposits. Small diameter rods and brushes for tube cleaning are available from
companies such as Easy Products, www.easyproductsltd.com
d) Detergents or chemicals suitable for use with stainless steels can be used if fouling
is severe. Allow time for the detergent or chemical cleaner to work before hosing
down with plenty of water.
e) The tube stack should be flushed through with clean water to remove all traces of
cleaning chemicals/detergents. If necessary the cleaning fluid should be
neutralised.
f) End covers or access plates should be refitted after cleaning using new gaskets.
6 Warranty
All BOWMAN
®
Exhaust Gas Heat Exchangers are guaranteed against manufacturing faults
associated with the product for a period of twelve months from the date of invoice.
For full warranty terms, please see the
BOWMAN
®
Conditions of Sale. A copy of which is
available on request or via download from the website.
caution
take care
