A series of tests were performed to characterize the performance
of the unit operating with the original evaporator in a large
environmental chamber that has a capacity of 35 kW (120 000 Btu/
h) and dry-bulb and RH control better than ±1 C (2 F) and ±2%,
respectively. The unitwas tested with the air conditions specified in
AHRI Standard 340/360-2007 [1], 26.7 C (80 F) dry bulb and
19.4 C (67 F) wet bulb delivered to the unit at a rate of 1.42m3 s1
(3000 CFM). The air temperature and humidity were monitored at
the intake to the unit as shown in Fig. 4, and the air leaving the unit
was ducted through a flow measurement section to measure the
exit conditions and flow rate