Installing Unit On A Sth 270 Welding Power Source And Connecting 400 Vac Input Power - Miller hydracool 270 CE Owner's Manual

4-2. Installing Unit On A STH 270 Welding Power Source And Connecting 400 VAC Input
Power
1
3
2
4
9
10
6
Cooling Supply
Circuit Board
12
5
11
8
10
7
11
1 Welding Power Source
!
Have only qualified persons
make this installation.
!
Disconnect and lockout/tag-
out input power before con-
necting input conductors
from unit. Follow estab-
lished procedures regarding
the installation and removal
of lockout/tagout devices.
2 Front/Rear Bezel
3 Mounting Brackets
4 Screws
5 Plastic Cap
6 Wrapper
Loosen screws and remove bezels.
Install cooling system on power
source by checking that mounting
holes match. Reinstall bezels. Do
not fully tighten screws.
Remove wrapper from power
source and plastic cap from power
source rear panel.
7 Strain Relief
8 Input Power Cord
Insert strain relief into hole.
Route power cord through strain re-
lief and tighten strain relief.
!
Always connect green or
green/yellow conductor to
supply grounding terminal
first, and never to a line ter-
minal.
9 Machine Grounding Terminal
10 Green/Yellow Grounding
Conductor
11 Input Conductors (L1, L2)
12 Device Line Terminals
Secure grounding conductor to ma-
chine grounding terminal first.
Connect input conductors L1, L2 to
device line terminals.
Reinstall wrapper.
Close and secure door on discon-
nect device. Follow established
lockout/tagout procedures to put
unit in service.
Tools Needed:
Torx T20
956172138_2-A
OM-266 361 Page 7