CTS Psychrometric Test Room, Psychrometric Room

Climatic Testing Systems Inc.
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Psychrometric Test Room

PSYCHROMETRIC TEST ROOM

Climatic Testing Systems, Inc. (CTS) designs and manufactures Psychrometric Test Rooms, in accordance with Ashrae Standard 37, that are used by air conditioner manufacturers to determine the thermal performance of unitary air conditioners, split systems and heat pumps.

Dual, environmentally controlled rooms are used to simulate indoor and outdoor conditions. The Air Enthalpy Method is used to determine unit capacities and obtain heat balances. Code Testers utilizing AMCA nozzles and designed specifically to ASHRAE Standards, are used to measure air flows and outlet conditions from the Unit Under Test (UUT).

CTS provides a fully automated Data Acquisition and Control System utilizing LabView to control the test room parameters, perform calculations and provide reports. The software allows the user to create his own tests or perform any standard ARI test.

CTS offers Psychrometric Test Rooms with various tonnage ranges with a 10:1 turndown range for each facility.


*Typical Performance Specifications*
Parameter	Range	Stability

Indoor Dry Bulb Temperature	40 to 104°F 4 to 40°C	± 0.2°F ± 0.1°C

Indoor Dew Point Temperature	35 to 86°F 2 to 30°C	± 0.3°F ± 0.2°C

Outdoor Dry Bulb Temperature	-20 to 131°F -26 to 55°C	± 0.2°F ± 0.1°C

Outdoor Dew Point Temperature	5 to 95°F -15 to 35°C	± 0.3°F ± 0.2°C

Indoor and Outdoor Room Air Flows	Up to 20,000 cfm Up to 34,000 m³/hr	± 5%

Unit Under Test Voltage	90 to 600V	± 1%

Heat Balance	3% or better

Repeatability	1% or better


	*Software Features*
	>	Editing of test program
	>	Automatic test sequencing
	>	Loop calibration and calibration reports
	>	Hardware checkout routine
	>	Stability monitoring
	>	Real-time tolerance adjustments
	>	Real-time history graphing capability
	>	Automatic test report generation
	>	Data file management
	>	User Configurable Data Acquisition and Calculation Channels


	*Options*
	>	Air or Water Cooled Refrigeration Systems
	>	Individual UUT power circuits
	>	Control of Dewpoint temperatures down to -40°C
	>	Cyclic Tests
	>	Automated Nozzle Selection for Air Flow Measurement
	>	Refrigerant Mass Flow Measurement with Refrigerant Side Capacity Calculations

	CTS will customize the system design to meet your specific testing needs!