Therma-Steem® Model 400
February 15, 2019
17
120-volt models:
This unit draws 18 amps and requires a 20-amp fuse. Always make sure that your MAIN
POWER SWITCH is in the “OFF” position when you plug your unit into an electrical outlet.
If possible, plug the unit into a designated 20-amp electrical outlet, as the combined
electrical amperage of the Model 400 and other items on the same electrical circuits may
cause a circuit breaker to trip.
If you use an extension cord it must be it must be at a minimum, 12-gauge, 3 wire,
grounded, SJ Quality, cord and make sure it is rated for the amp draw of the system and
does not exceed 25 ft in length.
240-volt models:
This unit draws 13 amps and requires a 15-amp ABC fuse. Always make sure that your
MAIN POWER SWITCH is in the “OFF” position when you plug your unit into an electrical
outlet. If possible, plug the unit into a designated 20-amp electrical outlet, as the
combined electrical amperage of the Model 400 and other items on the same electrical
circuits may cause a circuit breaker to trip.
If you need to replace a fuse:
1.
Turn all the switches to the “OFF” position.
2.
Unplug your machine from the power outlet.
3.
Push down and twist the fuse cap to release the cap and fuse.
4.
Pull the fuse from the cap and replace with an ABC 20-amp fuse if 120 volt or ABC
15-amp fuse if 240v volt system.
5.
Place the fuse and cap back in the fuse holder and push down while twisting. This
will lock the cap into place. Make sure it is locked.
6.
Plug the machine into an electrical outlet.
OPERATING TEMPERATURES:
The maximum temperature of the steam in the vessel for the Model 400 is 380˚F. This is
controlled by the high limit red line on the temperature gauge. At this temperature, your
unit will also achieve its highest pressure of 16
0 PSI. It is very easy to stay in the 380˚
range if you open and close the gun while cleaning. The closed position will allow the
unit to re-heat to greater temperatures before the wand is
opened again. If you clean with the
wand in the open position for a sustained period of time, you will begin to see the
temperature and consequent pressure drop quickly.
