OPERATION
1) Inspect the equipment and verify that all components are complete and that there is no damage
to the unit.
2) Select the appropriate welding tip and screw it into the threaded end of the heat gun barrel,
using caution not to damage the thermocouple located at the end of the heat gun heater element.
If the thermocouple in the heater element (visible through the end of the heat gun when the
FUSION welder is turned off and the air supply disconnected) is damaged or dislodged, the air
temperature of the FUSION welder will be adversely affected.
Do not,
under any circumstances,
look into the end of the heat gun with naked eye
if the FUSION welder is in operation, or if air
is flowing through the FUSION welder.
3) For Model’s
FW-5A
and
FW-5B
, connect a compressed air source to the air supply inlet on the
control box.
Verify that air (unheated) is flowing through the system and exiting the heat gun at the welding tip.
These welders are equipped with an air pressure switch in the control box so if there is no
compressed air source attached to the Control Box, or if an inadequate air supply source is
connected to the control box, the heater element is disabled even if the “HEAT” switch is in the
“ON” position. Model’s
FW-5C
and
FW-5D
have integral air compressors inside the control box
and do not need an external air supply.
4) For Model’s
FW-5B
and
FW-5D
, it is recommended practice to turn the heat gun temperature
control knob fully counter clockwise to the "LOW" position (lowest heat setting). For Model’s
FW-
5A
and
FW-5C
, the digital process controller will go through a "self test" sequence during which
time all LED lights and digital display elements will light up. Once complete it will display the air
temperature reading at the threaded end of the heat gun barrel. This is the normal operating
mode and its selection may be verified by pushing the leftmost button on the digital process
controller once and releasing it, The display will show "PrOC" for a couple of seconds and return
to the air temperature reading.
If the red LED is flashing, an alarm mode is being indicated
and the
welder
should not be used.
5) Verify the heat gun location and that it is pointed in a safe direction and that there are no kinks
in the air hose between the control box and the heat gun.
6) Plug the power cord into an AC power source.
7). Turn on the FUSION welder by switching on the rocker switch labeled "MAIN POWER" (note
this switch is also a circuit breaker to provide over current protection). Moving the “MAIN
POWER” switch to the “ON” position energizes the FUSION welder control box and the
temperature process controller (which controls the air temperature from the heat gun barrel. The
heat gun heater element is not powered at this time.
For Model’s
FW-5C
and
FW-5D,
switching on the “MAIN POWER” will also start the internal air
compressor. Verify that air (unheated) is flowing through the system and exiting the heat gun at
the welding tip.
8) Switch the "HEAT" switch to the “ON” position. This action energizes the heat gun heater
element. Air exiting the heat gun should feel warm (or hot depending upon the heat gun
temperature setting).
