Vitrifrigo MACS Serie Manual página 67

7.1 Sea water tube
To connect the components of the sea water circuit, use rubber or plastic water pipes with metal
reinforcement.
To ensure proper water flow, it is important to choose the tube with the correct diameter. For the dimensions
of the correct pipes, following the table below.
Water flow rate (l / min)
< 15
15 ÷ 25
25 ÷ 40
40 ÷ 55
55 ÷ 75
The water tube that connect the various components of the circuit up to the condenser must always go up.
The connecting sections between the various components must be as straight as possible, avoiding tight
curves, bends or siphons.
In particular, the section of the supply water tube (from the water intake to the pump)
must be as short as possible (it is advisable that it is not longer than 1 m).
If there are two or more air conditioners on the boat, the sea water circuit can be common. In this case, the
water intake, the filter and the pump must be sized taking into account the need to power more than one
system. After the sea pump, it will be necessary to provide a manifold, to distribute the water to the
condensers of the various air conditioners. It is necessary that the manifold is equipped with water flow
regulation valves and the right diameter of water tube, to ensure the correct flow water to each conditioning
machine.
Minimum diameter of pipes for sea water circuit
Inlet circuit pipe diameter (mm)
16
20
25
25
32
Outlet circuit pipe diameter (mm)
66
16
16
20
25
25