OWNER’S MANUAL
OM-617 193 396
March 1999
ARCCOOL™ V3
1. Specifications
Recirculating Coolant System For Water-Cooled GTAW Torches And GMAW Guns
Use With Guns/Torches Rated Up To 600 Amperes
IP Rating: 23
3 gal (11.4 L) Coolant Tank Capacity;
Maximum Cooling Capacity: 14,000 BTU/hr At 1.3 qt/min (1.25 L/min)
Dimensions: 12-1/4 in (311 mm) Deep, 9-3/4 in (248 mm) Wide, 33 in (838 mm) High
Weight: 50 lb (23 kg)
Weight: 50 lb
(
23 kg
)
Ref. ST-802 367
Single-Phase Input Power, 115 Volts AC, 4.7 A 60 Hz, 5.9 A, 50 Hz
2. Safety Symbol Definitions
Means Warning! Watch Out! There are possible hazards
with this procedure! The possible hazards are shown in
the adjoining symbols.
Symbole graphique d’avertissement! Attention! Cette pro-
cédure comporte des risques possibles! Les dangers
éventuels sont représentés par les symboles graphiques
joints.
Have only trained and qualified persons install, operate,
or service this unit. Call your distributor if you do not un-
derstand the directions. For WELDING SAFETY and
EMF information, read wire feeder and welding power
source manuals.
L’installation, l’exploitation et l’entretien de cet appareil
doivent être confiés uniquement à des personnes
qualifiées et convenablement formées. S’adresser à un
distributeur si l’on ne comprend pas les directives. Pour
des renseignements ayant trait à la SÉCURITÉ lors du
soudage et aux champs électromagnétiques, consulter
les manuels traitant les dévidoirs et les sources de
courant pour le soudage.
Beware of electric shock from wiring.
Attention! Risque d’électrocution due au contact avec des
fils.
Beware of moving parts.
Attention! Pièces en mouvement.
Wear safety glasses with side shields.
Porter des lunettes de sécurité avec protections
latérales.
Recycle or dispose of used coolant in an environmentally
safe way.
Recycler ou éliminer tout liquide de refroidissement usé
conformément aux méthodes prescrites pour assurer la
protection de l’environnement.
OM-617 Page 2
3. Rating Label
S/N: KJ
043009-011
115
5.5
ARCCOOL V3
Hz50/60
IP 23
V
U
1
=
A I
1
=
1
MILLER ELECTRIC MFG. CO., APPLETON, WI USA
NRTL/C
LR5071
4. Symbols And Definitions
Some symbols are found only on CE products.
NOTE
A
Amperes Alternating Current Voltage Input
Circulating Unit
With Coolant Pump
V
Volts
Water (Coolant) In-
put
Water (Coolant)
Output
Line Connection
Protective Earth
(Ground)
IP
Degree Of
Protection
I
1
Primary Current
Hz
Hertz
On Off
U
1
Primary Voltage Single Phase
5. Tipping
Y Be careful when placing or
moving unit over uneven
surfaces.
Ref ST-802 055
OM-617 Page 3
6. Preparing Cooling Unit For Use
Ref. ST-802 367
Fittings have 5/8-18 left-hand
threads. Connect hoses with
proper fittings as shown.
1 Flow Indicator
2 Filler Cover
Use table to select proper coolant,
and fill tank. Keep coolant level full.
3 Power Switch
4 Coolant Out Fitting
5 Coolant In Fitting
Tools Needed:
11/16 in
4
5
3
1
2
WNI Low Conductivity
Coolant No. CO810**;
Distilled Or Deionized Water
OK Above 32° F (0° C)
WNI Low Conductivity Coolant
No. CO810**; Or
WNI Aluminum Protecting
Coolant No. CO809**;
Distilled Or Deionized Water
OK Above 32° F (0° C)
GTAW Or Where
HF* Is Used
GMAW Or Where
HF* Is Not Used
Application
*HF: High-Frequency Current
**These coolants protect to -37° F (-38°C) and resist algae growth.
Coolant
WNI Aluminum
Protecting Coolant
No. CO809**
Where Coolant Contacts
Aluminum Parts
OM-617 Page 4
7. Connections
ST-802 368
To prevent overheating, make sure
cooling unit is positioned so airflow
is not restricted.
Y When using coolant system
with a welding power source
with a water valve, bypass
water valve on welding pow-
er source by connecting di-
rectly to torch/gun to avoid
overheating, or damage to
coolant system.
Y To prevent tipping when
placing unit on uneven or tilt-
ing surfaces, properly se-
cure the coolant system to a
wall, stationary support, or
equivalent rigid structure.
GTAW Connections
GMAW Connections
OM-617 Page 5
Turn Off and unplug unit.
1 Motor
Remove plugs and put about 15
drops of SAE 20 motor oil into each
oil port. Replace plugs, and reas-
semble unit.
2 Coolant Pump
3 Filter Cap
Place cloth or suitable container un-
der nut, and remove nut.
4 Strainer
Rinse strainer with clean water.
Reinstall parts. Remove cloth or
container, and reinstall wrapper.
. Relief valve is factory set at 60
psi (414 kPa), and normally
needs no adjustment: Only ad-
just if replacing motor.
5 Pressure Gauge
6 Relief Valve Adjustment
Screw
Connect gauge to Coolant Out fit-
ting as shown. Block or plug any
output fitting on gauge.
Turn On power, and adjust pres-
sure adjustment screw as needed.
Turn Off power. Disconnect gauge
and reinstall nut and wrapper.
. If replacing hoses, use hoses
compatible with ethylene gly-
col, such as Buna-n, Neo-
prene, or Hypalon. NOTE:
Oxy-acetylene hoses are not
compatible with any product
containing ethylene glycol.
3/8 in
Tools Needed:
8. Coolant Maintenance And Oiling Motor
ST-802 369
1
15/16, 3/4 in
2
4
3
5
6
Decrease Increase
OM-617 Page 6
9. Routine Maintenance
Y Turn Off all power and unplug unit before maintaining.
1 Month
Clean Coolant Filter
Blow Out Heat
Exchanger Fins
6 Months
Replace
Cracked
Hoses
Replace
Unreadable
Labels
Change
Coolant (If
Using Water)
12 Months
Oil Motor
Change
Coolant (If
Using CO809
Or CO810
Coolants)
10. Troubleshooting
Trouble Remedy
Coolant system does not work. Be sure input power cord is plugged in to energized receptacle.
Check line fuses or circuit breaker, and replace or reset if necessary.
Motor overheated. Unit starts running when motor has cooled.
Have Factory Authorized Service Agent check Power switch and motor.
Decreased or no coolant flow. Add coolant.
Check for clogged hoses or coolant filter.
Disconnect pump, and check for sheared coupling. Replace coupling if necessary.
SA-135 796-D
BLK
WHT
GRN/YEL
11
12
MOT
PLG1
INPUT POWER
S1
Figure 10-1. Circuit Diagram
OM-617 Page 7
11. Parts List
ST-802 364
. Hardware is common and
not available unless listed.
1
3
6
7
4B
11
12
13
14
15
16
17
18
19
21
22
23
26
27
28
25
23
29
21
30
31
2
4A
5B
5A
8
9
10
2
4B
5B
4A
9
24
5A
20
32
Figure 11-1. Complete Assembly
OM-617 Page 8
Description
Part
No.
Dia.
Mkgs.
Item
No.
Figure 11-1. Complete Assembly
Quantity
1 166 608 CAP, tank screw-on w/vent 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 194 179 TUBE, pick-up coolant 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 192 852 TANK, reservoir 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4A,4B 194 174 TUBING, PVC .375 ID x .625 OD x 15.000 clear brd 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5A,5B 174 044 TUBING, PVC .375 ID x .625 OD x 18.000 clear brd 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 166 569 RADIATOR, heat exchanger 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 174 042 PUMP, coolant 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 126 992 FITTING, hose brs barbed elbow M 3/8tbg x 3/8NPT 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 194 173 HOSE, NPRN brd No. 1 x .375 ID x 21.000 black 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 134 795 COUPLER, drive pump 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 MOT 173 263 MOTOR, 1/4hp 115VAC 50/60Hz 1425/1725RPM 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12 166 570 BLADE, fan 9.000 5wg 38deg .500 bore CW AL 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13 192 848 BRACKET, mtg motor/pump 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14 192 856 PLENUM, fan 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15 192 858 COVER, top 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16 PLG1 192 457 CABLE, power 11ft 5 in 16ga 3/c 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17 139 042 BUSHING, strain relief .270/.470 ID x .804mtg hole 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18 192 854 CASE SECTION, wrapper 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19 192 857 CASE SECTION, main 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20 192 449 LABEL, warning/caution 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21 166 564 FILTER, in-line low profile 100 screen 3/8 hose bar 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22 168 254 CLIP, filter mounting 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23 186 003 INDICATOR, flow 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24 166 560 RING, rtng ext .500 shaft x .042thk E style bowed 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25 166 571 FITTING, coolant barbed 3/8tbg 5/8-18 female 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26 166 568 PADDLE, flow indicator 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27 166 566 O-RING, 1.301 ID x .070 CS 70 Duro Buna−N1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28 186 005 LENS, flow indicator 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29 193 710 NAMEPLATE, (order by model and serial number) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30 S1 177 396 SWITCH, rocker DPST 15A 250VAC 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
31 +192 859 PANEL, front 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32 177 448 WEATHERSTRIPPING, adh .250 x .375 x 8.500 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+When ordering a component originally displaying a precautionary label, the label should also be ordered.
BE SURE TO PROVIDE MODEL AND SERIAL NUMBER WHEN ORDERING REPLACEMENT PARTS.
/