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Calvex Walk-in Chambers



  • Insulated Galvanized or Galvalume
  • Chamber Panel Material
  • White painted embossed Interior Finish
  • White painted embossed Exterior Finish
  • Construction on existing concrete floor at grade
  • For existing floors: Flat bottom panels – no screed
  • Temperature set points at -20°C to 40°C, +/- 2.0°C
  • Relative humidity set point at 15% RH to 75% RH, +/- 5% RH
  • Assumes de-ionized purified water availability
  • Hinged Door size 35” W x 78” H
  • Door heated window 14” W x 14” H
  • Door openings of 2 per hour @ an average opening duration of 30 seconds
  • Average personnel occupancy per hour (2 persons) @ 10 minutes
  • Storage chamber – No make-up air required
  • LOAD: Storage only, no heat
  • Lighting: LED lamps, 36 watts each fixture, 70 foot candles at 6 ft.
  • Condensing unit, outdoor, air-cooled, Semi-Hermetic, R-404A, Rapid Cycle solenoid valves, <50ft horizontal run, <10ft vertical run, 1 floor, unit location on roof or chamber, unit power 208-230Vac/ 1 phase/ 60Hz
  • Evaporator Unit: Ceiling Plenum/Unit Cooler, with copper tube/aluminum fins
  • Ultrasonic humidification
  • Control Panel: Standard NEMA 1 with 120/208Vac/3 phase/ 60Hz

Chambers are our passion!

Chambers are our passion!

Watlow F4T Touchscreen Temperature and Humidity Process Controller

The Watlow F4T provides temperature and humidity system control and alarm functionality with touchscreen capabilities and is now standard on all Calvex CPL Reach-in and Walk-in chambers.

Watlow F4T Touchscreen Process Controller Features

  • 4.3-inch color touch panel with high-resolution, graphical user interface.
  • Temperature PID, data logger, over/under-temperature and humidity limit, power switching, math, logic, timers and counters combined into an integrated system.
  • Modular design.
  • Ethernet TCP/IP, Modbus RTU, EIA-232 Communications.

Optional Calvex Signature Touchscreen Features

Optionally, the Calvex Signature Touchscreen is available for all chamber configurations and provides a greater detail and higher level of chamber functionality for end users.

  • Visual indication of fan and system run status.
  • Refrigeration system redundancy with switch capabilities to maintain even system runtime.
  • Calibration and Uniformity Offsets.
  • Alarm Logging functions that recall previous alarms with time and dates.
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