Heat recovery unit for domestic hot water from air conditioning and refrigeration systems up to 100 tons

DC Series Chemically Cleanable Commercial Desuperheaters recycle rejected heat from your air conditioning or refrigeration system and use it to heat water or other fluids. At the same time, desuperheating lowers refrigerant temperature and pressure, reducing energy input to the compressor. You save by reducing or eliminating the energy required for water heating while increasing the efficiency of the air conditioning/refrigeration system.

Heat recovery unit for domestic hot water from air conditioning and refrigeration systems up to 200 tons

AC Series™ Mechanically Cleanable Commercial Desuperheaters recycle rejected heat from your air conditioning or refrigeration system and use it to heat water or other fluids. At the same time, desuperheating lowers refrigerant temperature and pressure, reducing energy input to the compressor. You save by reducing or eliminating the energy required for water heating while increasing the efficiency of the air conditioning/refrigeration system.

For Ammonia Refrigeration Systems

Heats Hot Water Utilizing Waste Heat From Industrial Refrigeration Systems

The Doucette CADS Extends Your Hot Water Capability Inexpensively

The Doucette Industries CADS Series Ammonia Desuperheater/Water Heater™ delivers cost-effective energy savings by heating potable water through the recovery of waste heat from industrial refrigeration systems. The CADS unit supplements potable hot water heating used for process applications by capturing "superheat" which accounts for approximately 10% to 15% of the total system heat of rejection. The CADS Series can effectively heat the water up to 140 ºF.

For the Beverage Bottling Industry

Reduces operating costs while preventing beverage contamination.

The Doucette Industries CO₂ Vaporizer™ marks a major advancement in refrigeration heat recovery technology by using waste heat energy from the refrigeration system to vaporize CO₂ practically and simply. The heat exchanger operates like an auxiliary condenser, and is installed in the refrigeration compressor discharge line.

For enhanced evaporator capacity, system stability, compressor protection and oil return.

Nominal SLHE selections should be based on system horsepower, which will provide a nominal 10ºF subcooling and a nominal 20ºF suction superheat for R-22, R-502, R-404A, R-507, R-407A, R-504, R-134A, R-407C and R-410A at 110ºF condensing and 25ºF suction. For example, for a 1-1/2 HP system, select an SLHE 1-1/2. Do not select undersized models to avoid high suction pressure drops and gas whistling.

Selections based on suction and liquid line sizes are appropriate for standard low, medium and high temperature refrigeration systems provided the system HP rating closely matches the SLHE selection.

1/3 to 15 tons Fresh Water Evaporators

Doucette Coaxial Coils are designed for use as Water Cooled Condensers, Water Chillers and in Water Source Heat Pumps. This design is being used by major OEM’s around the world and in the ever expanding wholesale replacement market. Simplicity of design and installation makes this product ideal in both markets.

1/3 to 20 Hp Fresh Water and Marine for Condensers, Chillers and Water-Source Heat pumps

1/3 to 40 tons

Freshwater and Marine

Doucette CounterFlow Condensers are mechanically cleanable with "fail safe" proven design. These condensers offer OEM's, contractors and end-users the advantages of high performance and compact packaging.

Heavy - Duty Construction - 5 to 125 tons

Shell & Tube "Chiller-Barrels" featuring heavy-walled 3/4" OD enhanced tubing and ring cover construction for ease of service.

Nominal tons capacity based on 12,000 BTUH per ton, 44° leaving water temperature, 10° range with R-22 service at 35° evaporating temperature. Comprehensive rating tables are available for R-22, R-134a and R-404a. Capacity includes 0.00025 additive fouling, 0.0005 total fouling factor.

Compact High-Efficiency Heat Transfer Systems

Doucette Continues to Transform the Heat Exchanger Industry

The compact size, low refrigerant charge, and superior heat transfer characteristics of Doucette's Brazed Plate Heat Exchangers make them ideal for evaporator, condenser and sub-cooler applications. Available for virtually any duty, the Brazed Plate Heat Exchangers are available with copper or nickel brazing materials. Standard units have 316 Stainless Steel plates with copper brazing and sweat connections. U.L. listed for 650 psig DWP.

Bronze and Stainless Steel Vibration Absorbers Assemblies

Minimize compressor and pump vibration right at the source with Doucette Industries' Vibration Absorbers. The original flexible connectors that are still standards of the industry. Custom lengths, connections and design pressures are available.

For Industrial, Commercial and Residential Applications.

The Hydronic Series is a liquid-to-liquid heat exchanger designed for highly efficient heat transfer covering a wide variety of liquid types. The heavy duty design makes it ideal for demanding commercial, industrial and residential applications where high performance and low maintenance are important.

Heat transfer coefficients are greater than conventional shell and tube or plate exchangers because of the enhanced heat exchange surface and counter-flow design. Unlike plate heat exchangers, the Hydronic Series is not sensitive to debris clogging because of its large fluid circuits and is mechanically cleanable on the tube side circuit.

Taco replacement pumps are for use with The Aquefier® Heat Recovery Unit and the C Series Light Commercial Desuperheater.

Grundfos replacement pumps are for use with the DC and AC Series Desuperheaters.