Vitrifrigo MACS 7 Serie Manuel D'installation page 66

Filter (3): It must be positioned before the inlet of the pump, so that it is always below the waterline and the
pump itself. Always, install the filter between the ball valve (2) and the seawater pump (4). Install the filter
in an accessible position to facilitate periodic cleaning.
Sea water pump (4): The pump is used for the circulation of sea water. The pump it is not self-priming, so it
must be positioned 50 cm below the waterline. We also recommend that the delivery pipe starts with a
vertical section of 20-25 cm, to keep the pump always primed. The pump must be adequately fixed (and in
an accessible position) using the holes in its base. The following table lists the recommended pump capacities
according to the capacity of the air conditioner.
Sea water discharge (6): The sea discharge must be positioned above the waterline, to have visual
confirmation of the flow of water. The height, however, must not be excessive, to minimize the noise
produced by the water jet.
Condenser water connections: The condenser of the air conditioner is equipped with two
connections for connecting the sea water circuit pipes. Tighten the pipes to the
connections using stainless-steel clamps. Pay attention to the direction of travel of the
water, which must be from the lower coil of the condenser to the upper one.
Minimum seawater pump capacity
MACS capacity (btu / h)
7000
12000
16000
Fig. 7 (flow direction of seawater in the condenser)
Pump capacity (l / min)
12.5
15
30
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