1
SAFETY PRECAUTIONS
1.1
Introduction
Before using the device, any person designated to use, repair or test it must read the following instructions regarding
safety and use.
For more detailed information, order manual code 3301151.
2
GENERAL DESCRIPTIONS
2.1
Specifications
The GRV20 cooling unit is a device designed to manage the flow and reduce the temperature of the coolant flowing in
the welding torch and complies with IEC 60974-2 standard.
2.2
Explanation of technical specifications
No.
Serial number, to be cited in all requests regarding the cooling unit
U1
Rated supply voltage.
1
Single-phase power supply.
50/60 Hz
Frequency
I1max
Maximum current consumption
IP23S
Degree of housing protection
P1 l/min
Cooling capacity
Pmax
Maximum pressure
IEC 60974-2
Reference standard
2.3
Description of protection devices
2.3.1
Grade of protection of the electrical system
The cooling unit is protected against overloads by a fuse.
2.3.2
Coolant pressure protection
This protection is achieved by means of a pressure switch inserted in the coolant fluid delivery circuit, which controls
a microswitch that enables the power source.
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