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9. Hot-Air Blow-Off (HABO)
The optional Hot-Air Blow-Off (HABO) system "flash"-dries parts by high-velocity, direct
blasts of air that blow most of the water off parts. Heat evaporates any remaining water.
All HABO systems are delivered with the following features:
·
Heater contactor wired in-line with blower
·
Over-temperature protection
·
Duct-heater
·
TEFC fan motor
·
Direct-coupled aluminum, balanced fan blade
·
High-velocity conversion nozzles 3 inches (7.6 cm) from the edge of
the turntable
9.1. Theory of Operation
The HABO system activates after wash and rinse cycles have completed: The fan turns
on while the turntable continues to rotate. Air is inducted from outside the washer
cabinet by the fan and blown through the electric heating coils. The air picks up heat as
it passes around the heating coils. Finally, the heated air is accelerated to high velocity
as it travels through the plenum and out the nozzles to blow water off parts on the
turntable.
The heating units are sized to provide a minimum of 110° F (43° C) rise above ambient
to operating air temperature.
Steam-Exhaust Fan
NOTE:
The HABO system removes steam using a variable-speed DC-drive
centrifugal steam-exhaust fan, which replaces the standard ASE unit. The centrifugal
fan differs from the standard unit in two keyways:
·
·
The inlet is at a 90° angle from the outlet.
The outlet ducting is square and connects to a round pipe.
Therefore, you must modify the standard installation procedures given in chapter
"Installation" in this manual to account for these two differences. Refer to the following
section, Installation, for more information.
Standard Turntable Power Washer v. 4.0
The MART Corporation