PURGE REQUIREMENTS
The installer of BAC equipment must ensure proper system purging of air prior to operation. Entrained air can
obstruct the proper flow of glycol solution, resulting in higher operating pressures than design and reduced thermal
storage capacity.
Air Pump Installation
The standard BAC delivery consists of a centrifugal air pump (with an inlet air filter), a threaded adaptor and a
flexible discharge sleeve to be connected to the customer provided air piping. A non-return valve is shipped loose
with the air pump for field installation.
After the unit has been rigged into position, the air pump can be installed. The recommended air piping is shown in
the figure: the air supply is taken from the ambient air. The air pump is to be mounted on a clean, dry and vibration
free surface which is flat and will support the unit. Special pads are not required.
The mounting surface should be levelled and the pumps must be securely bolted in place. It is recommended that,
in case of outdoor installation, the air pump is installed under a shelter. The air pump should be located within 6
meters of the air distribution inlet piping. If a more remote location of the air pump is required, consult your local
BAC representative.
Recommended air pump piping arrangement
1.
Non-return valve
2.
Steel pipe for initial 3m; then PVC for remainder of air supply (by others)
3.
Filter
4.
Air pump
W W W . B A L T I M O R E A I R C O I L . E U
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2 Rigging
2 Rigging
