
Tecumseh Compressor Company 
    Indoor Condensing Units 
January 14, 2015 
Revision: REL 
Model: AE4450Y-AA1APA      BoM: 2E291-1      R-134A      1/3 HP      AIRCOOLED 
Model 
AE4450Y-AA1APA 
* F = Flare, S = Solder, RF or RS = Rotolock with Flare or Solder Connections, C = Compression Fitting 
Evaporator T 
°F PSIG BTUH Watts Cond T BTUH Watts Cond T BTUH  Watts  Cond T  BTUH  Watts  Cond T 
20 18.4 2972 545 106 2766 559 113 2499 567 123 2269 577 132 
25 22.1 3295 583 109 3069 599 116 2773 608 126 2514 622 135 
30 26.1 3641 624 112 3387 642 119 3054 654 129 2761 670 138 
35 30.4 4008 668 115 3721 688 122 3342 704 132 3010 723 141 
40 35.0 4398 716 119 4072 738 126 3637 759 135 3262 778 144 
45 40.0 4811 766 122 4438 792 130 3940 819 139 3517 838 147 
50 45.4 5246 819 126 4820 849 134 4249 883 142 3774 901 150 
55 51.2 5703 876 130 5219 910 139 4566 952 146 4033 969 153 
L W H CH Suction Liquid 
12.6  10.6  10.1  9.2  3/8” S  1/4” S  -  180  10  - 
Dimensions, inches  Line Connection*  Pumpdown  Air  Oil Ch  Gr. Wt. 
90F 90% 
Ambient Temperatures 
80F  90F  100F  110F 
SCFM Oz. Lbs. 
60 Hz Performance 
Return gas temp. 65F. 5F sub-cooling 

January 14, 2015 
Revision: REL 
Specifications/ Parts:   
  Model AE4450Y-AA1APA  
Unit Bill of Material  2E291-1  Fan Motor RLA  0.53 
Nominal Volts-Hz-Ph  115/60/1  Fan Blade  51567 
Refrigeration Range  20° to 55°F  Fan Guard  N/A 
Design Pressure Low  150  Fan Shroud  71092 
Design Pressure High  350  High Pressure Switch  N/A 
Voltage Range  103 to 127 for 60 Hz  Low Pressure Control  N/A 
Min. Circuit Ampacity  10.2 @ 60 Hz  Condenser  50866-1 
Max. Fuse Size (amps)  15  Receiver Tank  N/A 
Compressor Model  AE4450Y-AA1A  Liquid Valve  N/A 
Comp. Bill of Material  AE1430E-214-J7  Liquid Filter *  N/A 
Compressor RLA/LRA  7.75 / 42 @ 60 Hz  Sight Glass *  N/A 
Overload  830-10094    Suction Valve *  N/A 
Relay  820-10078    Rotolock Valve Gasket  N/A 
Run Capacitor  N/A    Discharge Valve  N/A 
Start Capacitor  85PS165E16    Suction Filter *  N/A 
Unit Drawing  DGU1924-16    Accumulator *  N/A 
Wiring Diagram  DEAE2    Crankcase Heater  N/A 
  Defrost Timer N/A 
      Fan Switch (s)  N/A 
Replacement Kit - Relay  K71-41       
Replacement Kit: Overload  K90-61    * = Equipped Units Only   
Replacement Kit – Start 
Capacitor 
  Receiver Heater N/A 
K146-55 Solenoid Valve N/A 
 Fan Motor 810M009C09 
Electrical Diagram 
EC63474