MPS-1-302 - Page 6 of 8
After about 20 seconds the flow of steam will cease as the injected water will have been vaporized
and exited. Repeat the preceding procedure as often as is required to clean the part. The 'pump
run button' may be depressed for as long as 5 seconds if a longer duration of steam is desired. If
you try to pump water while the unit still has steam in the plumbing, the pump motor may stall,
resulting in a lack of any steam being generated. Wait until all steam is gone before pumping more
water into the chamber.
After a few cleaning cycles the steam will begin to lose its' ability to clean because the heating
chamber has cooled below the optimum operating temperature. To recover, simply let the unit rest
until the heating chamber pilot lamp has gone out, then commence with the cleaning process. Note:
Each cleaning application is different. Some tenacious contaminants may require the hottest,
highest-pressure steam to remove. In this case you will need to allow the heating chamber to fully
recover between cleanings. Other contaminants may be removed even when the chamber has
cooled to the point of spitting hot water along with the steam. This varies by cleaning application.
For high volume industrial applications, Va-Tran Systems Inc. offers a continuous system, the
MPS-I-CD. The MPS-I-CD is available only as a 208-240 volt ac powered Precision Steam
Cleaning System. Va-Tran Systems, Inc. may also be consulted to design modified or customized
systems to solve your cleaning problems.
Setting the operating temperature.
Changing temperature
set point is easy.
Power down the
unit and let cool. Remove the 4 screws that secure the top cover, then the 4 screws that secure
the maintenance panel (right side of unit). The temperature control board is mounted on the left
side panel and has an analog dial in the center of the P.C.B. The dial reads directly in Fahrenheit
and can be set as hot as 600° F., however we suggest 575° F. as the upper limit. The unit will
make useful steam set anywhere from 450 to 575° F., the higher the setting, the higher the initial
pressure steam will be generated.
Operating above 575° F may blow the temperature fail-safe thermal fuse and will not be covered
under warranty.
MAINTAINING YOUR MPS-I-302
The MPS-I-302 has been designed to require infrequent maintenance. Most moving parts, located
primarily in the water pumping system, have been designed as either low maintenance or
maintenance-free. There are, however, some wear parts in the pump cylinder itself that will wear
out with use, and must be replaced at the factory. Va-Tran Systems, Inc., recommends that you
replace most moving parts, as a comprehensive pump replacement kit, on a yearly basis as part of
your preventative maintenance program:
Particulate Filter
Replace as needed
Cylinder Assembly
Replace yearly or as required
Servicing the moving parts.
Providing service to the MPS-I-302 is easy. Power down the unit
and let cool. Remove the 4 screws that secure the top cover, then the 4 screws that secure the
maintenance panel (the right side of the unit). Most moving parts are on the pump assembly in the
lower left-hand corner of the interior as viewed toward the right side of the unit.
