Warm Rooms (WRS)

warmroom_img1.jpgBES’s warm room series can create a range of temperature and humidity levels within a single chamber (standard temperatures from +10C to over 70C).

Varying in size from small step-in units to large stability storage areas with multiple air handlers, these units meet the complex demands of those seeking a high-quality testing environment in a single unit.


  • Stability and shelf life studies
  • Cell and tissue culture
  • Raw material, bulk product storage and conditioning
  • General laboratory incubation and pharma sterility studies
  • Animal holding chambers
  • Insect rearing and controlled growth
  • Thermal cycling
  • Product stress testing and burn in
  • TAPPI / ASTM product test chambers

Standard Features

  • Modular metal skinned panels with urethane insulated tongue and groove construction for chamber enclosure.
  • "Cam-locking" construction with vinyl gasketed seams.
  • Low height aluminum ceiling plenum housing.
  • Totally accessible hinged drain pan for maintenance and cleaning of all interior plenum components.
  • PSC fan motors for energy efficiency. All fan motors rated for operating temperatures of chamber. Motors are remoted from chamber interior where application exceeds rating.
  • Automatic defrosting with refrigerant hot gas and/or electric heat for quick and efficient operation.
  • Semihermetic continually operating compressors for extended equipment life and maximum chamber temperature control and uniformity.
  • Uniform horizontal and vertical air distribution through a lay-in ceiling air distribution system with anodized aluminum support.
  • Fully accessible control panel to efficiently and securely house all controls, alarms and recording devices.
  • Touchscreen system control of chamber parameters.
  • Vapor proof fluorescent or incandescent light fixtures.
  • Factory leak testing of all refrigeration assemblies prior to shipment.
  • Bench testing of complete control panel and electrical devices performed prior to shipment.
  • Applicable ISO listing 9001:2000 applies.

Structural / Electrical Options

  • Stainless wall, ceiling and floor finishes.
  • Electrical wiring to NEC standards for Cl. I
  • Division I or II environments.
  • Maximum product security through dead-bolts or locking bars. All security locking mechanisms are furnished with internal emergency relief.
  • Standard and custom shelving, casework and chromatography support racking.
  • Thermopane view window in door or wall panels.
  • Access ports and pass throughs.
  • Surface mounted vapor proof duplex outlets, anodized aluminum plug mold or recessed.
  • Vinyl floor mat runners in open areas or seamless floor covering over complete area.
  • Exterior / interior door ramps.
  • Remote light ballasts for chambers above 40°C.
  • Emergency lighting systems.
  • RS 232 / 485 or 4-20 mA comms available.

Mechanical Options

  • Perforated Lexan ceiling designed to deliver low velocity air uniformly throughout the entire chamber. This approaches laminar flow. Lay-in tiles are prismatic for light diffusion.
  • Complete stainless steel finish for ceiling plenum housing including drain pan.
  • Exhaust fans with stainless steel filtered air intake or dampered connection ports for host building supply and return air.
  • Base level dehumidification with a proportional reheat package.
  • Extended range dehumidification by ES developed and field proven proportional air volume regenerative desiccant drier. This design allows close tolerance control and extended life of drier components.
  • Extended range humidification by independent passivated stainless steel steam generator designed for pure water supply.
  • Point of use water purification system for steam generator supply water.
  • Copper or phenolic coated evaporator fin construction for protection in corrosive environments.
  • Complete 100% redundant backup refrigeration systems with automatic switch over.
  • Vertical wall plenum configuration for increased chamber loads requiring greater evaporator coil surface area typical of industrial applications.
  • Available designs for temperature uniformity throughout entire chamber to ± 0.5°C.
  • Available designs for humidity uniformity throughout entire chamber to ± 3% RH.
  • Conditioning packages designed to use host building chilled water systems for chamber cooling.
  • Non-refrigerated cooling using building ventilation available for certain applications.
  • Hermetic compressor packages for low capacity cooling applications.
  • Remote air handlers to remove mechanical components from chamber interior and increase air volume.