Lincoln Electric REFRIJET GR 51 Mounting instructions

COOLING UNIT
REFRIJET GR 51
SAFETY INSTRUCTIONS FOR USE AND MAINTENANCE
MACHINE No W000315645
EDITION : EN Instructions for use REF : 8695 5814
REVISION : I
DATE : 03-2019 Original instructions

Thank for the trust you have expressed by purchasing this equipment, which
will give you full satisfaction if you follow its instructions for use and
maintenance.
Its design, component specifications and workmanship comply with
applicable European directives.
Please refer to the enclosed CE declaration to identify the directives
applicable to it.
The manufacturer will not be held responsible where items not recommended
by themselves are associated with this product.
For your safety,there follows a non-restrictive list of recommendations or
requirements, many of which appear in the employment code.
Finally we would ask you kindly to inform your supplier of any error which
you may find in this instruction manual.

8695 5814
REFRIJET GR51 I
CONTENTS
A - IDENTIFICATION.........................................................................................................................1
B - SAFETY INSTRUCTIONS............................................................................................................2
AIRBORNE NOISE...................................................................................................................2
DISCHARGING FREEZCOOL.................................................................................................3
C - DESCRIPTION .............................................................................................................................4
1 - GENERAL...........................................................................................................................4
2 - TECHNICAL SPECIFICATIONS.........................................................................................4
3 - COMPOSITION...................................................................................................................6
4 - DIMENSIONS - WEIGHT....................................................................................................8
5 - SUPPLY LIMITATIONS ......................................................................................................8
E - OPERATOR’S MANUAL..............................................................................................................11
1 - PUTTING THE PLASMAFIX 51 INTO OPERATION...........................................................11
2 - CIRCUIT BREAKER ...........................................................................................................11
3 - RECOMMANDATIONS.......................................................................................................11
E - OPERATOR’S MANUAL..............................................................................................................11
1 - PUTTING THE PLASMAFIX 51 INTO OPERATION...........................................................11
2 - CIRCUIT BREAKER ...........................................................................................................11
3 - RECOMMANDATIONS.......................................................................................................11
F - MAINTENANCE............................................................................................................................12
1 - SERVICING.........................................................................................................................12
2 - TROUBLESHOOTING........................................................................................................13
3 - OPENING AND CLOSING THE REFRIJET GR 51............................................................13
4 - FLUID CIRCULATION PLAN..............................................................................................14
5 - WIRING DIAGRAM.............................................................................................................14
6 - SPARE PARTS...................................................................................................................15
PERSONAL NOTES ..........................................................................................................................18

8695 5814
II REFRIJET GR51
INFORMATIONS
DISPLAYS AND PRESSURE GAUGES
The measuring devices or displays for voltage, current, speed, etc., whether analog or digital,
should be considered as indicators
For operating instructions, adjustments, troubleshooting and spare parts see safety instructions
for use and maintenance
ISEE No. 8695 9050 PLASMAFIX 51
8695 9001 TORCH SP45
REVISIONS
REVISION B 03/02
DESIGNATION
PAGE
Update item 11-12
Reference change W000140098
C7
F17
REVISION C 07/03
DESIGNATION
PAGE
Update
7 14 17
REVISION D 11/03
DESIGNATION
PAGE
Reference change
F17
REVISION E 03/04
DESIGNATION
PAGE
Reference change
4 5 6 11 16 17
REVISION F 05/06
DESIGNATION
PAGE
To change logos
-
REVISION G 10/08
DESIGNATION
PAGE
Complete update + spareparts newoffer
-
REVISION H 05/18
DESIGNATION
PAGE
To change logos

8695 5814
REFRIJET GR51 III
REVISION I 03/19
DESIGNATION
PAGE
Update
F-17 ; B-3 ; C-8

8695 5814
IV REFRIJET GR51

8695 5814 / H
REFRIJET GR51 A-1
A - IDENTIFICATION
Please enter the number of your equipment in the following box.
Quote this information in all correspondence.
1
Manufacturing factory code
4
Year manufactured
2
Manufacturing year code
5
Product type
3
Product serial no.

8695 5814 / I
B-2 REFRIJET GR51
B - SAFETY INSTRUCTIONS
For general safety instructions, please refer to the specific manual supplied with the equipment.
AIRBORNE NOISE
Please refer to the specific manual supplied with the equipment.

8695 5814 / I B - SAFETY INSTRUCTIONS
REFRIJET GR51 B-3
DISCHARGING FREEZCOOL
W000010167 (9.6L)
W000010168 (20L)
(pink heat transfer liquid 285)
Freezcool should not be discharged in large
quantities into the natural environment. You should
observe local emission standards concerning
COD().
Before any emission of this product, contact your
local water Authority to inquire about the regulations
applying to your region.
You should inform them of:
- The COD of the Freezcool (741000 mg/kg)
- The quantity in kg to be discharged
The Water Authority will advise you of the approach to
be followed and in particular:
- The location
- The quantity
- The timing
...for discharging the product.
The COD (Chemical Oxygen Demand) represents the portion of the product requiring
oxygen, (e.g. oxidizable mineral salts and the major part of organic compounds).

8695 5814 / I
C-4 REFRIJET GR51
C - DESCRIPTION
1 - GENERAL
The REFRIJET GR 51 reference W000315645 is a specific cooling
unit of the MICRO PLASMA welding set:
PLASMAFIX 51 .
The REFRIJET GR 51 enables cooling in a closed circuit and thus
independent of:
The power electronics (linear amplifier) of the PLASMAFIX 51
The MICRO PLASMA SP 45 welding torch
2 - TECHNICAL SPECIFICATIONS
ELECTRICAL
Mains
230 V single-phase (delivered by the
PLASMAFIX 51)
Frequency
50 & 60 Hz
Current
3 A
HYDRAULIC
Maximum pressure
6 Bars
Service pressure
4,8 Bars
Water flowrate without load
8 L/mn
Water flowrate in service
3.3 L/mn
Tank capacity
5 L
Liquid used
Transfer liquid 285
THERMAL
Duty cycle
100 %
Use-temperature
10°C > T° > 40 °C
Test conditions
Installation MICROPLASMA
Difference between hot water inlet
temperature / ambient temperature
T = 15 °C
Output
1900 W
For information: PLASMAFIX 51 installation
Duty cycle
100% PLASMA (I welding = 50 A - U welding > 20 V)
60 % TIG (I welding = 50 A - U welding < 20 V)