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1.Description of products & features 
1.1. Products code explanation 
3
    U  19   F    S  1   E  R   A 
 
 
Climate type: T1 (see table 1) 
Frequency type: DC inverter
    
 
Product type: A stands for heat pump type, refrigerant is R22 
B stands for heat pump type, refrigerant is R407C 
E stands for heat pump type, refrigerant is R410A 
N stands for cool only type, refrigerant is R407C 
Design edition 
Product series: S stands for EASY STOCK 
Product appearance 
Cooling / Heating capacity,19=19000BTU/h 
Product type : “B” stands for cassette type, “C” stands for 
convertible type, “D” stands for duct, “S” stands for wall 
mounted type, "F" stands for console type, “U” stands for 
outdoor of split unit 
Max. 1 to 3 
1.2 Brief Introduction for T1,T2,T3 working condition 
 
1.3 Operating Range of Air Conditioners 
Working temperature range 
  Rated Maximum Minimum 
Indoor 
DB℃ 
27 32 18 
 
WB℃ 
19 23 14 
outdoor 
DB℃ 
35 43 -10 
Cooling 
 
WB℃ 
24 26 6 
Indoor 
DB℃ 
20 27 15 
 
WB℃ 
14.5 --  -- 
outdoor 
DB℃ 
7 24 -15 
Heating 
 
WB℃ 
6 18 -- 
 
 
Climate type  
Type of Air 
Conditioner  
T1 T2 T3 
Cooling Only   
18 ℃~43℃ 10℃~35℃ 21℃~52℃ 
Heat pump 
-7℃~43℃ -7℃~35℃ -7℃~52℃ 
Electricity Heating 
~43℃ ~35℃ ~52℃