07-01674D 2009-08
2
Dri-Eaz Products, Inc.
INTRODUCTION
LGR 2800i dehumidifiers reduce humidity in enclosed
structural environments by removing water vapor from
the air. With proper use, the 2800i can help dry carpet,
carpet pad, floors, walls, building contents and more.
Using 2800i dehumidifiers can also help prevent
secondary damage caused by high humidity. For best
results, use 2800i dehumidifiers with Dri-Eaz TurboDryer
airmovers placed around the perimeter of the room to
distribute heat energy and release moisture from wet
surfaces into the air.
How the LGR 2800i dehumidifier works
Dri-Eaz low-grain refrigerant dehumidifiers operate by
pulling moist air in across a very cold evaporator core.
The moisture in the air condenses on the coil. In certain
conditions, the machine operates in defrost mode,
warming any frost accumulated on the evaporator coil
back into water. The water collects in a tray and is
pumped out through a hose. Onboard sensors
continually monitor environmental conditions and system
operations of the dehumidifier, including temperature
and relative humidity, which can be viewed on the
display panel. The unit also transmits data to a
HygroTrac gateway, which can store the information or
relay it to the HygroTrac website (see below).
HygroTrac remote sensing
The LGR 2800i dehumidifier is equipped with HygroTrac
wireless sensor technology. When used with the
HygroTrac Remote Monitoring system, this technology
allows the user to monitor site conditions and equipment
performance in real time via the internet.
Here’s how it works. The 2800i transmits humidity and
temperature values to a gateway placed at the jobsite.
The gateway can be configured to store this data for
later retrieval, or to transmit the data via an Internet
connection to a secure website. Users may log on to the
HygroTrac website from any computer with internet
access and view, print and download a wide variety of
customizable reports, charts and graphs.
Used in conjunction with additional sensors placed in the
drying environment, the HygroTrac system provides an
extremely accurate view of the drying environment,
equipment performance and drying progress. The
system can also be set to alert you via email or text
message on your cell phone if inlet or outlet conditions of
the LGR 2800i exceed certain parameters you have set
on the HygroTrac website.
If the HygroTrac system reports a Power Off status for a
unit on a job site, you will know immediately that the unit
has been turned off or that the power has otherwise
been interrupted. HygroTrac can be configured to
automatically notify you by e-mail or text message if this
occurs.
Asset tracking
When the LGR 2800i is disconnected from AC power,
the system will automatically go into in a “Standby”
mode, periodically transmitting a Standby signal. Two
replaceable AA batteries provide the power for this mode
of operation (see “Installing the Sensor Batteries,” p. 1).
The Standby signal can be used to confirm the location
and status of your unit. A HygroTrac gateway placed in
your storage area, for example, will receive Standby
transmission from any 2800i units in the vicinity and
report this status to your HygroTrac website.
Data transmitted
The information collected by the system includes the
temperature and relative humidity of the inlet and outlet.
The HygroTrac system uses this data to calculate grain
depression (the amount of moisture being removed from
the air) and other important information about the unit’s
operating status. The system also transmits all top level
status messages. For more information, see “System
status and data messages,” p. 7.
For more information about HygroTrac Remote
Monitoring, please visit
hygrotrac.drieaz.com
or call Dri-
Eaz at 800-932-3030.
POSITIONING A DEHUMIDIFIER
For best results, operate your dehumidifiers in an
enclosed area, as this creates a drying chamber. Close
all doors and windows that open to the outside to
maximize the unit’s water removal efficiency. Also, keep
traffic though the drying chamber to a minimum. Place
your LGR 2800i dehumidifier against a wall, away from
obstructions, and keep it away from anything that could
block airflow into and out of the unit.
For more information about creating an optimum drying
environment, contact Dri-Eaz at 800-932-3030.
