DPI 7-9 Mobile Overview

Dew-Point Intelligence (DPI) 7-9 Mobile is rated at 2,000 gallons/8,000 liters at 75°F/23.9°C and 75% humidity.

Model DPI 7-9 Mobile is an air to water generator designed to provide safe good quality drinking water well within federal guidelines when none is available. This air to water generator is mounted on a 48 ft. lowboy "air ride trailer". Power is supplied by a Diesel Generator 200 kWh @ 60 Hz or 175 kWh @ 50 Hz diesel generator. Larger generators can be supplied for an additional cost. Fuel tanks allow operations for up to one week at 120 tons at average temperature/humidity.

Rendering of the DPI 7-9 Mobile Unit
  • Rendering of the DPI 7-9 Mobile Unit
Trailer:48 ft. long lowboy "air ride" tri-axle trailer (approx. weight 13,731.lbs) (full specs. available)
Diesel Generator:200 kWh @ 60 Hz or 175 kWh @ 50 Hz diesel generator (full specs. available)
Fuel Consumption 60 Hz:
  • Full Load/16.2 gph
  • 3/4 Load/11.8 gph
  • 1/2 Load/8 gph
  • 1/4 Load/4.8gph
Fuel Consumption 50 Hz:
  • Full Load/15 gph
  • 3/4 Load/11.2 gph
  • 1/2 Load/7.5 gph
  • 1/4 Load/4.gph
Generator weight:Approx. 4,000 lbs
Diesel fuel tanks:Two 1,000 gal tanks (approx. weight empty 3,600 lbs. and est. weight full 17,800 lbs.)
Atmospheric water generator and tank weight:Est. 18,000 lbs. with water tank empty
Est. complete curb weight:Loaded trailer all components - 53,531 lbs (With full diesel tanks)
Est. total with tractor:72,031 lbs. US regulations allow 80,000 lbs. total between the tractor (18,500 lbs. average) and trailer with load

Model DPI 7-9 atmospheric water generator consists of four - 30 ton compressors (120 Tons of refrigeration) utilized to balance the system to meet the programmed schedule to remain under dew point. Low temperature (40°F or customer's choice) or low humidity (30% or customer's choice) will initiate temporary system shutdown and are programmable not to unduly waste power. When temperature or humidity improves, the machine will automatically restart. The system will reinitiate at a timed sequence to come back on line. The system is configured with all safety over temperature and over current protection. As an option it can have Internet monitoring and in many cases be reprogrammed remotely.

Model DPI 7-9 Atmospheric Water Generator with "Dew Point Intelligence" is programmed to read dew point at any temperature and automatically adjust refrigeration levels and airflow to maintain optimal operation to produce water. High humidity at any outside ambient temperature causes the dew point to be close to that outside ambient temperature allowing the choice of less refrigeration (and less power) to be used. By controlling refrigeration capacity and airflow during operation, up to 85% energy can be saved with this AWG over conventional refrigeration.

Optional patented technology allows automatic deicing when the evaporator goes below freezing. At 33°F evaporator fin temperature, the refrigeration system continues to operate down to the outside ambient air of 40°F by means of Air to Water Technologies variable speed compressor and fan control to avoid icing (No other refrigeration technology allows for the independent operation in this temperature range).

Operating Ambient Temperatures:40°F to 120°F and changes are programmable within those temperatures
On-Site Monitoring:
  1. Compressor head pressure
  2. Compressor suction pressure
  3. Temperature of the suction gas
  4. Compressor oil pressures
  5. Refrigeration receiver levels
  6. Pressure drop across the inlet air filters
  7. Ambient air temperature and humidity
  8. Dew point of ambient air
  9. Total gallons produced
  10. Power consumption
Remote Monitoring (extra fees apply):With this option all of the above components can be monitored remotely via the Internet. A static IP address is required. With remote monitoring emails can be sent out to alert of a warning or alarm level for any safety. Data such as gallons produced and dew point trended and can be down loaded from the local controller to a PC via the Internet. If necessary the local controller can be modified or completely reprogrammed remotely via the Internet. The programming engineer can optimize the logic if necessary to produce the maximum water.
General Controller Features:
  1. Monitor head pressure and suction temperature of each circuit. Airflow can be adjusted to keep both in specification
  2. Prove airflow via the Delta Pressure (DP) transducer across the inlet air filters. This same sensor can detect a high-pressure drop across the filters and email a notification to clean (if remote monitoring option is purchased).
  3. Suction temperatures are kept above freezing by use of the patented hot gas by-pass system
  4. Dew point will be calculated and will be used to optimize the water production. Dew point will also be used to determine if the machine should be shut down due to no moisture in the air.
  5. Power can be adjusted to maximize water production and energy savings
Size:Built in a 20 to 30 ft. container
Weight:17,000 lbs. empty (approx.) Unit must sit on a level surface, in a fairly protected area with the airflow unrestricted.
Water Bearing Surfaces:All surfaces are inert coatings and components.
Pumping Module:A 30-gallon collection water tank (commercial grade ozone compatible); then “ozonated” and filtered while cycling with the main tank. The pumping tank is equipped with high float start and low float turn off for the new water entering the pumping/filtering system.
Pump:Stainless steel 60 PSI, hold, 40 PSI run @ 30 GPM (Larger pumps are available)
Bactericide:Ozone with controlled recirculation
Automatic Self Cleaning Filter:10 micron self cleaning (drain required)
Sediment Filter Two:Stainless steel canister 3 micron or customer’s choice
Sediment Filter Three:Stainless steel canister 1 micron or customer’s choice
If pumping to other tanks or water systems beyond the specified tank below further bactericide and filtration will be needed. Quotes given upon viewing location and requirements.
Water Bearing Surfaces:NSF approved components and stainless steel
Exterior Main Tank:2,000 gallons (polyurethane above ground commercial grade ozone compatible). Tank is equipped with low float for start of pump for controlled circulation and high float for turn off of entire unit. Circulation is maintained by the main controller.