Miller Air Pak, Owner'S Manual, Page: 31 / 86

OM-478 Page 27
6-4. Connecting Auxiliary Power Plant
Ref. S-160 620C
Stop engine.
Power and weld outputs are
live at the same time. Discon-
nect or insulate unused
cables.
Have qualified person install
according to circuit diagram and
Section 12 − Auxiliary Power Guide-
lines.
Place CC/CV switch in CC
position when using auxiliary
power plant.
Remove junction box cover.
1
Lead 93
2 Lead 92
3 Lead 91
4 Lead 90 (Neutral)
5 Lead 42 (Circuit Grounding
Lead)
Lead 42 connects to front panel
Ground stud.
6
Isolated Neutral Terminal
7 Jumper Lead 42
8 Grounding Terminal
Jumper 42 is connected to lead 90
at factory. Jumper 42 may be dis-
connected from neutral to meet
applicable electrical codes.
9
User-Supplied Leads
10 Load Terminals
Connect leads to terminals.
11 Fuses F1, F2, And F3
F1, F2, and F3 protect each load line
from overload.
Set Engine Control switch to
Run when using auxiliary
power.
If max OCV switch is in Off posi-
tion (see Section 5-1), turn Am-
perage/Voltage control to max
for full output from optional aux-
iliary power plant.
10
Tools Needed:
93
91
90
92
Volts
Amps
KVA/KW
Single
120/240
42
10
Three
240
36
15
60 Hz Frequency
Engine Speed
Max. Fuse Size 45 Amperes
1850 RPM
AC
Phase
1
Phase
3
Output
Lead 42 connects to GROUND stud on
front of unit.
Jumper 42 is connected to 90 at factory.
240V
120V 120V
240V
240V
240V
1 3
F3
F2
F1
4
5
8
1
2
3
6
7
9
11
Generator Windings
(See Section 9 For
Complete Circuit)