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Emulsion tank heating system
The emulsion tank heating system consists of the heating elements, the
heating system enclosure with the thermostat, the emulsion tank low
level switch, the emulsion tank over‐temperature switch, and the
temperature gauge.
The heating system is powered either by the paver’s 120 or 240‐VAC
generator or external power of 120 or 240 VAC.
Note:
Breaker selection on your paver is unique and needs
to be reviewed by the installer.
Heating elements
At least one emulsion tank in the system will include heating elements.
Other tanks may or may not have heating elements, depending upon the
options chosen. The heating elements are controlled by a thermostat
with temperature sensor (see Figure 22).
Tip:
Keep emulsion above 165° F (typically) to prevent it
from solidifying and clogging the system.
A heating element has a heating capacity of 4 kW at 240 volts or 2 kW at
120 volts. The tank can be held at 50° F to 200° F.
Using a 500‐gallon emulsion tank with two heating elements at
240 VAC, the heating system will
maintain 180° F.
Tip:
Because the heating elements are sized to maintain
temperature, heating cold emulsion to spray temperature may be
very slow. Therefore, the tank should be drained before overnight
or prolonged storage.
