J. T. Eaton LCX9000 User Manual download pdf (Page 38)

LCX9000 Liquid-Cooled Drives User Manual

2-16 For more information visit: www.EatonElectrical.com

MN04005001E

January 2007

Table 2-12: Pressure Losses — CH7x

Figure 2-16: Pressure Loss — CH7x

It is strongly recommended that the liquid carrying hoses from the network to the cooling

elements of the drive are electrically non-conducting (to avoid electrical short circuits if the

hose touches live parts). To avoid electrochemical corrosion, we also recommend adding an

inhibitor (e.g. Ferrolix 332/Henkel, Cortec VpCI-649l) in the cooling liquid.

The following main line hose materials are acceptable:

● plastic (PVC)

● rubber (EPDM only)

● aluminium

● other stainless and acid-proof materials

The hoses must tolerate a peak pressure of 580 psi (40 bar).

Connect the line hose to its counterpart (screw connector or fast connector) on the cooling

element of the drive/inverter. The coolant inlet connector is the one closer to the mounting

plate and the outlet connector is the one closer to the face of the drive, see Figure 2-18. Due

to high pressure in the line hose, it is recommended that the liquid line is equipped with a

shut-off valve, which makes the connection easier. In order to prevent water from spraying in

the installation room, Eaton also recommends wrapping e.g. linters around the connection

during installation.

Eaton also recommends equipping the pipe branches to the cooling elements with valves.

CH7x (16) with standard 1.5m hoses and optional fast connectors TEMA

Volume

Flow

Rate

(GPM)

Pressure

Loss

TEMA

Inﬂow

(psi)

Pressure

Loss

Inﬂow

Hose (psi)

Pressure

Loss

Element

(psi)

Pressure

Loss

Outﬂow

Hose (psi)

Pressure

Loss TEMA

Outﬂow

Hose (psi)

Pressure Loss

Total Inﬂow

Hose, Element

and Outﬂow

Hose (psi)

Pressure Loss Total

TEMA, Inﬂow and

Outﬂow Hoses and

Element (psi)

10.57 8.85 4.35 4.06 4.06 7.25 12.62 28.57

7.93 4.50 2.47 2.47 2.23 3.77 7.25 15.52

5.28 1.60 1.31 1.16 1.02 1.45 3.48 6.38

Pressure Loss, psi

Volume Flow Rate, GPM

Pressure loss; TEMA,

inflow (SET-SEL) (bar)

Pressure loss; inflow

hose (SEL-SEE) (bar)

Pressure loss;

element (SEE-PEJ)

Pressure loss; outflow

hose: (PEJ-PLJ) (bar)

Pressure loss; TEMA,

outflow (PLJ-PTJ)(bar)

Pressure loss total

(inflow hose, element

and outflow hose)

Pressure loss total

(TEMA, inflow and

outflow hoses and

element)

Legend

2.5

5.0

7.5

10.0

12.5

0.00 5.00 10.00 15.00 20.00 25.00 30.00

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 127 128

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