Cooling Loop Installation
4-9
PowerFlex 700L Frames 2, 3A, and 3B Liquid-Cooled AC Drives User Manual
2.
Using a backup wrench on the Complete Drive fitting, tighten the
swivel nut fitting by either of the following two methods:
–
Hex flats from wrench resistance method (recommended): one (1)
hex flat from wrench resistance.
–
Torque method: 103…109 N
•
m (76…81 lb
•
ft).
Figure 4.9 Frame 3A and 3B Complete Drive Mating Coolant Connection
Depending on the location of the heat exchanger or chiller relative to the
drive, the following drive cooling loop hose kits are available.
Table 4.A Drive Cooling Loop Hose Kits
DRIVE SIDE
CONNECTION
37° Flare Fitting
Backup Wrench
(use to prevent twisting
during swivel nut tightening)
Do not use Backup Wrench
on fitting locknut
1 5/8" Wrench Flats
Swivel Nut
USER SIDE
CONNECTION
Hose Length
Hoses
in Kit
Drive Side
(1)
Coupling Size
Heat Exchanger Side
Coupling Size
Used With
Hose Kit
(2)
Catalog Number
3 m (10 ft)
2
0.75 inch
0.75 inch
Frame 2
20L-GH10-B1
9.1 m (30 ft)
2
0.75 inch
0.75 inch
Frame 2
20L-GH30-B1
3 m (10 ft)
2
1 inch
1 inch with 90° elbow
Frame 3A
20L-GH10-A2
9.1 m (30 ft)
2
1 inch
1 inch with 90° elbow
Frame 3A
20L-GH30-A2
3 m (10 ft)
2
1 inch
1 inch
Frame 3B
20L-GH10-A1
9.1 m (30 ft)
2
1 inch
1 inch
Frame 3B
20L-GH30-A1
(1)
All drive side hose kit fittings are 37 degree flare.
(2)
Each hose kit contains two (2) hoses and the appropriate connectors.
Aotewell Ltd
www.aotewell.com
Industry Automation
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+86-755-8660-6182
