
Oil Ch Gr. Wt
L W H CH Suction  Liquid Oz. Lbs. (kg)
AE4450Y-AA1AXW 18.38 (467) 13.81 (351) 10.21 (259) 8.98 (228) 3/8" F 1/4" RF 13.1 47 (21.3)
20 25 30 35 40 45 50
3500 3900 4400 5000 5500 6100 6700
0.39 0.44 0.50 0.56 0.62 0.69 0.76 
490 510 540 570 600 630 650
The water valve should be adjusted to maintain a maximum of 95oF water outlet temperature in order to minimize water scaling within the condenser.
Performance: Ambient 95 oF -- Return Gas 65 oF -- Condenser water in 75 oF -- Head 135 PSIG
Evaporator temperature oF
* F - Flare, RF - Rotalock with Flare
* S - Sweat, RS - Rotalock with Sweat
* Use 3/8" min. water pipe size. Water inlet 3/8" NPT
  Factory Charge: 20 PSIG Dry Air. MUST BE EVACUATED
TECUMSEH HERMETIC 
CONDENSING UNIT 
Model    AE4450Y-AA1AXW 
BOM    32W387-19 
Water Cooled 1/2 HP 
Application  High Temp 
Refrigerant  R-134a 
Volts-Hz-Ph  115/60/1 
AE4450Y-AA1AXW_REL 
TPC - February 20, 2015 

Unit BOM 32W387-19 Contactor
Unit MODEL AE4450Y-AA1AXW Fan Motor
Fan Motor RLA 
Refrigerant R-134a Replacement Fan Motor 
Refrigeration RANGE 20°F to 50°F 
Design Pressure Low 150 Fan Blade 
Design Pressure High 300 Fan Guard 
Volts - HZ - Ph 115/60/1 Shroud 
Voltage Range 103.5-126.5 
Min. Circuit Ampacity 10.15 High Pressure Switch 
Max. Fuse Size 15 Low Pressure Control
Dual Pressure Control 84056 
Compressor MODEL AE4450Y-AA1A Condenser 50846-T
Compressor BOM AE1154E-209-J7 Receiver 51080-1
Compressor LRA 42 Accumulator
Compressor RLA 8.12
Valve Liquid 31584-1 
OverLoad 830-10094 Valve Suction 
Replacement Kit - O/L K90-61 Rotolock Valve Gasket 
Relay 820-10078 Process valve 
Replacement Kit - Relay K71-41 Water valve 56516 
Run Capacitor 
Replacement Kit - Run Cap. 
Start Capacitor 85PS165E16 Unit drawing DGU DGU1896-W001 
Replacement Kit - St. Cap. K146-55 Electrical Diagram 90314-6
AE4450Y-AA1AXW_REL 
TPC - February 20, 2015