Instruction Manual

6
A7 Cooler© Kemppi Oy 2021 R01
OPERATING MANUAL
Filter unit and ow switch
Depending on the FastMig model in question and the control panel type tted, please
follow the graphical instruction below in order to deselect or select water-cooling
function. FastMig Pulse or FastMig X operation is set to 'AUTO', FastMig KM, KMS and M
equipment is set as water function ‘ON’ from the factory.
If no cooler is tted, deselect the cooler function as instructed in the following. Welding
will be prevented if cooler function is enabled and no cooler is tted.
A7 MIG Welder, FastMig X and Pulse
The factory default setting for A7 MIG Welder, FastMig X and Pulse is AUTO. If a cooling
unit is not connected and the operator tries to establish air-cooled operation together
with an air-cooled gun, Err 27 is displayed. To establish air-cooled operation, select
cooler ‘OFF’. This is done in the ‘System Cong Menu’ as follows: Press the Menu button
on the X 37 power source panel. Move the menu display arrow (via panel's left-hand
up-down arrow keys) to select ‘System Cong Menu’ and then press the select button.
Choose ‘Water Cooling:Auto’ and change via control knob to setting ‘Water Cooling:OFF’,
then press Back/Exit. Cooler will then be set to the ‘OFF’ state for air-cooled operation.
Reset power source via on/o switch and continue welding.
When selected, the operation of the cooling unit is automatic, starting when welding
commences. When welding stops the pump will continue operation for approx. 5 min,
so reducing the gun and the cooling liquid to ambient temperature.
FastMig M, KMS and KM
When leaving the factory, cooling unit status is set 'ON'. If no cooling unit is connected,
set the cooling unit status to 'OFF'. Depending on your panel type follow the instructions
described in the graphic below. Having selected the cooling state required, reset the
power source by switching o at the main on/o switch. Restart the power source and
weld.
MR 200/MR 300