Machine Maintenance: 5-16
DeSCalIng prOCeDUre (reQUIreD)
Scale deposits on the interior of the heating system can cause a noticeable loss in
heating performance. Deposits of this kind result from hard water. The frequency with
which descaling procedures are required will vary. If the area has particularly hard water,
you may have to descale often.
To descale the system, add an appropriate descaler chemical to the water box. Circulate
it through the system. let it stand. flush and repeat as necessary. Clean all screens and
strainers, and check them frequently following descaling.
If using TM DeScaler™ through the flow meter, make sure to run clean water through the
flow meter after this procedure.
To descale using the recirculation kit (P/N 000-078-058), start with an empty water box.
fill a third of the water box with TM DeScaler™. follow the recommendations on the TM
DeScaler™ label for proportions. Verify that the float is not lying horizontal, but floats
below.
Attach the recirculation fitting provided in the kit to the garden hose quick connect (see
figure 5-19) and this combination to the front of the truckmount.
Attach one section of the solution hose to the outgoing solution fitting on the front of the
truckmount and the other end to the garden hose and recirculation fitting combination
that is attached to the front of the truckmount. Additional hoses may be attached inline if
descaling of hoses is needed.
Start the truckmount and allow it to run for 3 to 5 minutes. Do not leave the TM DeScaler™
solution in the system. flush the system with clean water and turn the truckmount
“Off.”
Figure 5-19. recirculation Fitting
