FRIGOMAR ENG - CU50VFD-CU70VFD 20190108.doc81218 Page 9 of 24
If two or more units are connected in parallel a manifold with balancing valves is required. It is
mandatory when using a manifold to assure the correct water flow to each unit, as follows:
Chiller / Heat
Fresh water flow (m3/h)
Pipe inner
Sea water flow (m3/h) Pipe inner
Pump unit
min
MAX
Ø mm
min
MAX
Ø mm
CU50VFD
1.5
2.5
25
1.2
1.8
20
CU70VFD
2.2
2.5
25
3.3
4.0
25
Chiller / Heat
Fresh water flow Pressure drop
Sea water flow
Pressure drop
(m3/h)
Fresh water (kPa)
(m3/h)
Sea water (kPa)
CU50VFD
1.5
30
1.3
60
CU70VFD
2.2
45
3.3
56
Fresh water
INLET
Fresh water
Filter
Sea water
Zinc anod
Sea water
OUTLET
Fresh water
OUTLET
Sea water
INLET
