Omega Transit Bus Compressors

E N V I R O N M E N T A LT E C H N O L O G I E S

1401 Valley View Lane, Suite 100 • Irving, Texas 75061Phone 972-812-7000 • Toll Free 888-286-6342 • Fax 972-314-9567

1 、Technical Data

Model

Form V Type Open Mode

Cylinder Number 4

Cylinder Volume cm3 754 650 554 488 410

Displacement m3/h

1450rpm 65.6 56.5 48.2 42.5 35.7

3000rpm 135.7 117 99.7 87.9 73.9

Oil charge/Brand of oil 2L/SONGZ68

Refrigerant R134a

Speed Range rpm 500~3500

Connec on pipe size mm

Discharge Pipe 35 35 28 28 22

Suc on Pipe 35 35 35 35 28

Weight (including lubrica ng oil)kg

32 32.8 34 32.5 33

To replace Bitzer compressor type

6PFCY 4NFCY 4PFCY 4TFCY 4UFCY

To replace BOCK compressor type

FKX50/775K FKX40/655K FKX40/560K FKX40/470K FKX40/390K

2、 Applica on Range

20-6465020-64750

20-64490 20-64410

20-64655

toh Suc on Temperature[ ] to Evapora ng Temperature[ ] tc Condensing Temperature[ ]

Addi onal Cooling or Suc on Overheat Limita on Required (△toh=max.20K) The compressor can be used vehicle engine in different speeds. While at maximum non-load speed of the engine, the corresponding compressor speed shall not exceed its peak(3500rpm).

3、 Performance Parameters

The curves below indicate the conversion coefficients of Refrigera ng Capacity(Q) and Power

Consump on(P) at different rpms, which equal 1 for both Q and P at the rpm value of 1450r/min.

20-6465020-64750 20-64490 20-6441020-64655

Omega Transit Bus CompressorsE N V I R O N M E N T A LT E C H N O L O G I E S

1401 Valley View Lane, Suite 100 • Irving, Texas 75061Phone 972-812-7000 • Toll Free 888-286-6342 • Fax 972-314-9567

The table below provides the condi ons: Refrigerant-R134a,No Super-cooled Liquid, Suc on

Temperature at 15 , Compressor Rota on Speed at 1450rpm.

Illustra on to Symbols：to means Evapora ng Temperature,tc means Condensing Temperature，Q

means Refrigera ng Capacity and P means Power consump on.

R134a Performance Parameter Table 1450rpm

Compressor Model t0 tc Q P Q P Q P Q P Q P

[ ] [ ] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] [kW] 10

40

44.10 10.71 38.35 9.31 32.69 7.93 28.03 6.99 23.60 5.87

5 36.69 10.08 31.90 8.77 27.19 7.48 23.31 6.58 19.63 5.53

0 29.28 9.33 25.46 8.11 21.70 6.92 18.61 6.09 15.67 5.12

-5 23.60 8.60 20.52 7.48 17.49 6.37 15.00 5.62 12.63 4.72

-10 18.22 7.65 15.85 6.65 13.51 5.67 11.58 4.99 9.75 4.19

10

50

37.73 11.91 32.81 10.36 27.97 8.83 23.98 7.78 20.19 6.53

5 31.33 10.86 27.25 9.44 23.23 8.05 19.91 7.09 16.77 5.95

0 25.12 9.99 21.84 8.68 18.62 7.40 15.96 6.52 13.44 5.48

-5 20.52 9.21 17.84 8.01 15.21 6.83 13.04 6.01 10.98 5.05

-10 15.82 8.10 13.76 7.04 11.72 6.00 10.06 5.29 8.47 4.44

10

60

32.59 12.27 28.34 10.67 24.16 9.09 20.71 8.01 17.44 6.73

5 26.42 11.48 22.97 9.98 19.58 8.51 16.79 7.49 14.14 6.30

0 21.06 10.56 18.32 9.19 15.61 7.83 13.39 6.90 11.27 5.80

-5 17.10 9.57 14.87 8.32 12.67 7.10 10.87 6.25 9.15 5.25

-10 12.43 8.13 10.81 7.07 9.22 7.86 7.90 5.31 6.65 4.46

20-6465020-64750 20-64490 20-6441020-64655

Omega Transit Bus CompressorsE N V I R O N M E N T A LT E C H N O L O G I E S

1401 Valley View Lane, Suite 100 • Irving, Texas 75061Phone 972-812-7000 • Toll Free 888-286-6342 • Fax 972-314-9567

4、Structural Drawing of the Compressor

1. Crank Sha 2. Sha Seal 3. Roller Bearing 4. Connec ng Rod Piston Assy

5. Safety Valve 6.Discharge Shut-off Valve 7.Suc on Shut-off Valve 8. Suc on filter

9. Oil Pump 10. Oil Filter

Omega Transit Bus CompressorsE N V I R O N M E N T A LT E C H N O L O G I E S

1401 Valley View Lane, Suite 100 • Irving, Texas 75061Phone 972-812-7000 • Toll Free 888-286-6342 • Fax 972-314-9567

5、 Overall Dimension Diagram

1.Discharge Shut-off Valve 2. Suc on Shut-off Valve 3.Discharge Temperature Protec on（1/8”-27NPTF） 4. Nameplate 5.Oil Sight Glass（M24X1） 6. Oil drain Plug in the Oil Chamber（1/8”-27NPTF） 7. Oil Charge Hole（1/8”-27NPTF） 8. Oil Pressure Connec ng Hole（1/8”-27NPTF） 9. Oil Discharge Hole（M22X1.5）

Omega Transit Bus CompressorsE N V I R O N M E N T A LT E C H N O L O G I E S

1401 Valley View Lane, Suite 100 • Irving, Texas 75061Phone 972-812-7000 • Toll Free 888-286-6342 • Fax 972-314-9567