Iss A 05/14
6
2 Installation
2.1 Transport / Storage
The heat exchanger must be fully drained down prior to transportation. Once drained and
fully dry, the heat exchanger must only be stored indoors within a non-aggressive
atmosphere.
2.2 Installation
Before fitting, check the heat exchanger for visible signs of damage.
a) The heat exchanger must be installed horizontally and levelled accurately, with the
primary circuit through the tubes and the secondary circuit over the tubes. The heat
exchanger should only be connected in ‘counter flow’ with the secondary circuit
connections always being positioned on top (See schematic diagram below). Alternative
installations may also be acceptable; consultation with Bowman should be made prior to
installation.
b) It is very important that the secondary circuit is fully vented via the vent plug fitted in
order to prevent any aeration taking place which can cause erosion of the tubes.
c) If ethylene glycol or any other heat transfer fluid is used in the secondary circuit,
adequate mixing should be performed prior to filling of the heat exchanger.
d) If temperature control sensors are fitted to either the primary or secondary circuits of the
heat exchanger, they should be fitted to the inlet circuit and not the outlet circuit in order
to provide accurate temperature readings.
e) The pressure relief valve must not be removed or tampered with.
f)
Water must always be running through the heat exchanger when the engine is running.
g) No valves are to be incorporated in the circuit which could be accidentally turned off and
prevent water flowing through the heat exchanger.
h) The approach and exit exhaust pipe bore must not be smaller than the heat exchanger
connections.
i)
Automatic engine shut down equipment must be fitted.
take care
