GE DPGT750EC/GC Technical Service Manual page 6

Overview
General
The GE Profile Harmony Dryer is part of the GE Profile
Harmony Clothes Care System utilizing the latest
developments in dryer technology.
Most conventional drying systems have a single motor
that powers both the blower and the drum. Therefore,
the blower fan and dryer drum are powered at the same
rate of speed. If air flow is impeded by lint buildup or
lengthy venting, the dryer cannot increase the fan
speed without increasing the drum speed. The
Harmony Dryer System utilizes dual motors and
strategically placed sensors. This enables the dryer to
respond quickly to temperature changes and ensure
proper air flow to optimize drying effectiveness.
Other features include:
Communication Link to the Washer- The dryer uses a
serial cable to automatically receive information from
the washer about the nature of the wash load,
essentially presetting the dryer controls so the user
doesn't have to.
Dual Motors - The dryer is equipped with dual motors -
one dedicated to the drum, the other to the blower fan.
The addition of a dedicated blower motor enables the dryer to alter fan speed whenever necessary to
optimize air flow. This capability greatly increases drying performance and efficiency. (See
Drive Motor
).
and Blower Motor
Variable Heater - The dryer's heater is capable of variable heat output. Its voltage regulation feature
allows the system to be rated at 6000 watts.
Dual Thermistors - Thermistors are much more sensitive to temperature changes and can relay the
information faster than thermostats. The dryer uses dual thermistors to monitor incoming air
temperature as well as the air temperature leaving the drum. The sensors work together with the
variable heater and blower to provide consistent even heat. (See )
Inlet Thermistor.
Moisture Sensor - The moisture sensor allows the control to monitor the fabric for moisture content and
end the cycle at the desired moisture level. (See )
Moisture Sensor.
Plastic Top & Backsplash - The dryer top and backsplash have UV stabilizers to prevent yellowing when
exposed to sunlight.
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