Vacon NX series, Maintenance Manual

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100% FLOW = 120 l/min
Plate heat
exchanger
route
Flow Bypass route Flow
Pressure drop
plate heat
exchanger Pressure
drop 3-way
valve
Total pressure drop
100% 120 l/min 0% 0 0,58 bar 1,3 bar 1,88 bar
75% 90 l/min 25% 30 l/min 0,3 bar 1,3 bar 1,6 bar
50% 60 l/min 50% 60 l/min 0,13 bar 1,3 bar 1,43 bar
25% 30 l/min 75% 90 l/min 0,036 bar 1,3 bar 1,33 bar
0% 0 100% 120 l/min - 1,3 bar 1,3 bar
=> Pressure drop varies between 1,3 bar - 1,88 bar
75% FLOW = 90 l/min
Plate heat
exchanger
route
Flow Bypass route Flow
Pressure drop
plate heat
exchanger Pressure
drop 3-way
valve
Total pressure drop
75% 90 l/min 0% 0 0,3 bar 0,7 bar 1,0 bar
50% 60 l/min 25% 30 l/min 0,13 bar 0,7 bar 0,83 bar
25% 30 l/min 50% 60 l/min 0,036 bar 0,7 bar 0,74 bar
0% 0 75% 90 l/min - 0,7 bar 0,7 bar
=> Pressure drop varies between 0,7 bar - 1,0 bar
50% FLOW = 60 l/min
Plate heat
exchanger
route
Flow Bypass route Flow
Pressure drop
plate heat
exchanger Pressure
drop 3-way
valve
Total pressure drop
50% 60 l/min 0% 0 0,13 bar 0,33 bar 0,46 bar
25% 30 l/min 25% 30 l/min 0,036 bar 0,33 bar 0,37 bar
0% 0 50% 60 l/min - 0,33 bar 0,33 bar
=> Pressure drop varies between 0,33 bar - 0,46 bar