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Table 1: test conditions
Room conditions       Outside conditions          
Test condition Temp (°c)
Dry bulb
Temp (°c)
Dew point
Rh % Moisture (g/kg)
dry air
Enthalpy (kj/kg)
dry air
Temp (°c)
Dry bulb
Temp (°c)
Dew point
Rh % Moisture (g/kg)
dry air
Enthalpy (kj/kg)
dry air
T1 27 14.5 46.4 10.1 53.6 35 19.3 39.8 14.3 71.4
T2 21 11 52.6 8.2 41.9 27 14.5 46.4 10.1 53.6
T3 22 9.9 49.3 8.1 42.9 23 13.2 54.0 9.5 47.3
For portables the outside conditions are the same as the room conditions                    
Dehumidifiers have an alternative t2 condition, vis                    
T2 12 6.1 67.3 5.9 26.9          
T1 is the standard testing condition for
moderate climates according to The iso
                   
T2 is the standard testing condition for cool climates according to the iso                    
T3 is the bsria derived testing condition for uk summer heat loads                    
Table 2: average values of performance for the different types of units
Unit Condition Power consumed
(kwh)
Total cooling/mass
condensed water (kWh/kg)
COP/DER
Inverter splits T1 1.29 3.28 2.56
  T2 0.68 2.22 3.42
  T3 0.59 2.14 3.87
Non-inverter splits T1 2.12 4.43 2.13
  T2 1.95 4.55 2.31
  T3 1.83 4.44 2.50
Portable T1 0.67 0.56 0.80
  T2 0.59 0.50 0.79
  T3 0.62 0.48 0.74
Window T1 1.68 2.73 1.66
  T2 1.42 2.47 1.77
  T3 1.40 2.73 2.02
Dehumidifier T1 0.84 0.48 0.55
  T2 0.73 0.45 0.61
  T3 0.77 0.45 0.59
Total cooling applies to air conditioners; mass of condensed water applies to dehumidifiers; cop: coefficient of performance; der: dehumidification efficiency ratio