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HVAC&R Equipment Environmental Chambers

Description:

Large "Truck" Chamber

The large "truck" chamber provides controlled air conditions from -7 °C (20 °F) to 65 °C (150 °F).

Air-Conditioner and Heat Pump Test Chambers

The indoor chamber can provide controlled air conditions for all ARI heating and cooling tests for split-systems, window units, and other unitary equipment throughout the range of 10 °C (50 °F) to 60 °C (140 °F) dry-bulb temperature with relative humidity controlled within ±2 %.

 

Small Appliance and Refrigerator Chamber

This chamber is used to test small heating and cooling equipment such as radiators, heat exchangers, water coolers, refrigerators, and control devices.

Specifications / Capabilities:

Large "Truck" Chamber
The conditioning equipment can remove up to 35 kW (120 000 Btu/h) of heat at a dry-bulb temperature of 35°C (95°F) and 50 % relative humidity. Full range dry-bulb temperature control of ± 1°C (2°F) with relative humidity control better than ± 2 % is possible. At ARI heating and cooling conditions, control of dry-bulb and dewpoint temperatures are better than 0.1 °C (0.2 °F).
 
Air-Conditioner and Heat Pump Test Chambers
The outdoor chamber has a temperature range capability from -18°C (0 °F) to 60 °C (140 °F) with relative humidity controlled within ± 2%. At ARI heating and cooling conditions, control of dry-bulb and dewpoint temperatures are better than 0.1°C (0.2°F). Units with cooling capacities up to 35 kW (120 000 Btu/h) may be tested.
 
Small Appliance and Refrigerator Chamber
Dry-bulb temperature may be controlled from -18°C (0°F) to 65°C (150°F) with relative humidity controlled within ± 2% of setpoint. At ARI heating and cooling conditions, control of dry-bulb and dewpoint temperatures are better than 0.1°C (0.2°F). Maximum heat removal from this chamber is 11.7 kW (40 000 Btu/h).
HeatPumpChamber
Contact

Name: Piotr A. Domanski, Leader
Phone: 301-975-5877
Email: piotr.domanski@nist.gov
Address:
NIST
Building Environment Division
100 Bureau Drive, Stop 8631
Gaithersburg, MD  20899-8631