Page 10 - Desiccant

SPECIFICATIONS DD700 DESICCANT DEHUMIDIFIER

SPECIFICATIONS 10550GR-US 10551GR-US FEATURES DD700
On/Off Control
Height (inch) 40 40 Adjustable Thermostat
Electronic Controls
Width (inch) 28 28 Manual / Automatic Mode Selection
Remote Humidity Sensor Facility
Depth (inch) 23 23 Hours Run Meter
EC High Efficency Fans
Weight (lbs) 170 170 Variable Fan Speeds
High Capacity PTC Heaters
Voltage (V) 220 460 Process / Regen Air Filter
Rubber Anti-Vibration Feet
Current (A) 16 8 Dual Air Inlet Design
Free Standing
Phase 33 Status Indicators
Self Contained
Frequency (Hz) 60 60 Stainless Steel Construction O
Inlet Duct Attachments O
Power (kW) 6.2 6.2 High Temperature Safety Cut-outs

Process Airflow Maximum – Dry Air (cfm) 883 883

Process Airflow Nominal – Dry Air (cfm) 410 410

Regen Airflow Nominal – Wet Air (cfm) 95 95

Process Air Outlet Dia (inch) 88

Regen Air Outlet Dia (inch) 66

Rotor Wheel Speed (rph) 13.6 13.6

Rotor Size dia X depth (inch) 13.8 X 3.9 13.8 X 3.9

High Extraction Setting @ 27°C 60% (ppd) 231 231

High Efficiency Setting @ 27°C 60% (ppd) 184 184

Deep Drying Settings @ 27°C 60% (ppd) 205 205

Typical Dry Air Off – High Extraction Setting (%) 18 18

Typical Dry Air Off – High Efficiency Setting (%) 18 18

Typical Dry Air Off – Deep Drying Settings (%) 8 8

Min Operating Temperature (°F) -4 -4

Max Operating Temperature (°F) 104 104

APPLICATION

Dehumidifiers are required wherever there is a need to lower the humidity level to prevent corrosion, mold
growth and condensation or maintain a low humidity condition during manufacture, packaging or storing of
hygroscopic products.

METHODS OF DEHUMIDIFICATION

Dehumidification is possible using two possible principles, Condensation with refrigeration style
dehumidifiers and Adsorption with desiccant dehumidifiers. Desiccant dehumidifiers perform exceptionally
well when used in cooler climates, or when a low dew-point, deep drying or low humidity levels are
required. Since desiccant dehumidifiers do not produce water, they will work effectively down to sub zero
temperatures.

Their operation is simplistic yet extremely effective and
reliable. Air (Process Air) is drawn into the dehumidifier,
where is passes over a wheel impregnated with Silica
Gel. As the air passes over this wheel, any moisture
present in the air is absorbed into the Silica Gel wheel
before leaving the dehumidifier as warm dry air.

The Silica Gel wheel is continually, slowly rotating,
typically at three revolutions per hour. As the wheel
rotates, a small portion passes through the regeneration
segment. During this phase a second air stream
(Regeneration Air) is heated to a high temperature
before passing over the wheel. Any moisture present in
the wheel is released into this
air stream; this hot wet air is then exhausted outside the
area being dried.

KEY DESIGN FEATURES

• EC High Efficency Forward Curve Fans
• Infinitely Variable Fan Speed

PHARMACEUTICAL, CONFECTIONARY, DEFENSE INDUSTRY,
WATER DAMAGE, COLD STORES, POWER STATIONS, PLASTICS