Dual Air Enthalpy Tunnel Confirmation

The psychrometric Calorimeter test method has long been recognized as the most cost effective and versatile approach to accurately determine the thermal rating of air conditioner and heat pump products.

 

It has the dual air enthalpy method, which independently measure the capacity of the unit under test on both the indoor and outdoor side.

 

An energy balance is then performed to precisely confirm the accuracy of results.

 

Applicable standard: ASHRAE 37

                KS C 9036

                JIS C 9612

                JIC B 8615

Specification

Control Variable

Accuracy…………………………± 2 %

Repeatability………………………± 2 %

Rangeability……………………… 10 : 1

Confirmation…………………… ± 2 %

Electric Measurement…………… ±0.5%

Temperature Control……………± 0.1 %

Humidity Control……………… ± 0.1 %

IR Temperature Range………10 ~ 50 °C

OR Temperature Range……-20 ~ 60 °C

IR Dewpoint Range…………4 ~ 40 °C

OR Dewpoint Range…………4 ~ 40 °C

IR Air Flow Range………3 ~ 30 CMM

OR Air Flow Range……10 ~ 100 CMM

UUT Voltage Control……80 ~ 300 VAC

Energy Balance   : ± 2 %