46 • vacon
INSTALLATION
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5
CH7x (16) with standard 1.5m hoses and optional fast connectors TEMA
Volume flow
rate (l/min)
Pressure loss;
Tema, inflow
(bar)
Pressure
loss; inflow
hose (bar)
Pressure
loss; ele-
ment (bar)
Pressure
loss; outflow
hose: (bar)
Pressure loss;
Tema, outflow
(bar)
Pressure loss
total (inflow hose,
element and out-
flow hose) (bar)
Pressure loss total
(Tema, inflow and
outflow hoses and
element) (bar)
40,0
0,61
0,30
0,28
0,28
0,50
0,87
1,97
30,0
0,31
0,17
0,17
0,16
0,26
0,50
1,07
20,0
0,11
0,09
0,08
0,07
0,10
0,24
0,44
Table 5-10. Pressure losses; CH7x
CH7, pressure loss
10,0
15,0
20,0
25,0
30,0
35,0
40,0
45,0
0,00
0,50
1,00
1,50
2,00
2,50
Pressure loss, bar
Vo
lu
me
f
lo
w
r
a
te
Pressure loss; element (SEE-
PEJ)
Pressure loss; outflow hose;
(PEJ-PLJ)
Pressure loss; inflow hose (SEL-
SEE)
Pressure loss; Tema, inflow
(SET-SEL)
Pressure loss; Tema, outflow
(PLJ-PTJ)
Pressure loss total (inflow hose,
element and outflow hose)
Pressure loss total (Tema, inflow
and outflow hoses, element)
Figure 5-24. Pressure loss, CH7x
The liquid carrying hoses from the network to the cooling elements of the drive must not be electrically
conductive. Risk of electrical shock and device damage! To avoid electrochemical corrosion, we fur-
thermore recommend to add an inhibitor (e.g. Ferrolix 332/Henkel, Cortec VpCI-649l in the cooling liquid.
The following main line hose materials are allowed:
•
plastic (PVC)
•
rubber (EPDM only)
•
aluminium
•
other stainless and acid-proof materials
The hoses must tolerate a peak pressure of 40 bar.
Connect the line hose to its counterpart (screw connector or fast connector) on the cooling element of the
frequency converter/inverter. The coolant inlet connector is the one closer to the mounting plate and the
outlet connector the one closer to the face of the drive, see Figure 5-26. Due to high pressure in the line
hose, it is recommended to equip the liquid line with a shut-off valve, which makes the connection easier.
In order to prevent water from spraying in the installation room we also recommend to wrap e.g. linters
around the connection on installing.
Vacon furthermore recommends to equip the pipe branches to the cooling elements with valves.
