Features of -70° C Freezers
	-20°C Corridor
	-70°C Side Freezer Compartments
	Dry Air Purge to maintain -70°C dewpoint or less
	Primary and Backup Control Systems
	Room and Equipment Safeties
	Man in the Box Alarm
	LN2 Emergency Backup System
	Double Wall Construction to eliminate condensation on exterior of Room
	A number of interior and exterior finishes are available for the freezer room
	3" diameter Validation Port for instrumentation on side of corridor
	Multi-circuited Fan Coil unit for Corridor Conditioning
	Redundant Gravity DX coils in Freezers
	Redundant Cascade Refrigeration Systems (Available in air-cooled or water-cooled)
	Turn-key installation by Tescor personnel
Advantages of Walk-In Freezers
	A typical Tescor walk-in -70°C freezer measuring 16’ (w) x 26’ (l) x 11’ (h) with 10 doors will replace approximately 30 Upright or Chest Freezers
	Single Point Utility Connections
	Lower Utility Costs by 50% or more
	No HVAC System Upgrades Required to Building
	Less floor space required
	Lower maintenance requirements
	High Reliability of Redundant Systems
	No Frost Accumulation on Stored Product

Temperature Range: -20°C : center compartment -70°C : side compartments	Temperature Control Stability Freezer: ± 0.5°C Corridor: ± 1°C
Temperature Control Stability Freezer: ± 0.5°C Corridor: ± 1°C	Temperature Uniformity ± 2.5°C in Freezer. (Measurements made 12" away from the interior room walls.)
Humidity System: Chemical Desiccant De-humidifier System <-70° C dewpoint temperature in Corridor	Access Port One (1) 3" diameter validation port and plug located adjacent to corridor door
Control System NEMA 12 Control Console Dual PID controllers for independent freezer chamber controls PID controller for corridor temperature control Two Pen Chart Recorder Freezer High Temperature Alarms Refrigeration Compressor Fault Alarms Man-In-The-Box Alarm Emergency button located on inside of corridor Temperature and Pressure sensors for system monitoring Remote Alarm monitoring	Lighting Vapor-proof, white Incandescent lamps in corridor to provide 50 foot-candles measured 40" above the floor at 20°C   Refrigeration System Redundant Cascade Systems with automatic switch-over High Stage R-507 (CFC Free) Low Stage R-508B (CFC Free) Available in water-cooled or air-cooled designs

Available Options
	Liquid Nitrogen back-up system
	Battery Back-up for controls
	6, 8, 10 or 12 door freezer compartment designs
	Stainless Steel Wire Shelving
	Installation Qualification (IQ) and Operational Qualification (OQ)

For More Information on Tescor's Low Temperature Freezers
please contact our Sales Department