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Carrier 09RH Fig. 12 5F40 and 5F60 Compressors, Fig. 13 Recommended Solenoid Valve Operation

1 40

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2R* 1R

PUMP OIL PRESS.

DUMP TO

CRANKCASE

OIL TO UNLOADER

POWER ELEMENTS

*STEP 2R DOES NOT EXIST ON

A 5F40 COMPRESSOR. NO HOLE

IS REQUIRED AT POINT A

FRONT VIEW

BOTTOM VIEW HANDHOLE COVER (ALL PIPE PLUGS 1/8 NPT)

FROM UNLOADER

CONNECTIONS

WHEN UNLOADING DESIRED,

SOLENOID VALVE SHOULD ALLOW

OIL FROM UNLOADERS TO DUMP INTO

OIL SUMP.

THIS

PORT

CLOSED

TO UNLOADER CONNECTIONS. OIL

PRESSURE LOADS THIS STEP WHEN

SOLENOID VALVE ALLOWS FLOW AS

SHOWN.

THIS PORT

CLOSED

FROM HIGH

SIDE OF

OIL PUMP

Fig. 12 — 5F40 and 5F60 CompressorsFig. 13 — Recommended Solenoid Valve Operation

A

DEENERGIZED, FLOW A-B LOADS STEP

B

ENERGIZED, FLOW B-C UNLOADS STEP

Contents

Main Application Data CONTENTS COMPRESSOR PHYSICAL DATA (Table 1) 5F,H Open-Drive Compressors 09RH Water-Cooled Condensers OPEN-DRIVE COMPRESSORS Operating Requirements Discharge Temperature High Compression Ratio Suction Gas Superheat Page Compressor Capacity Notes Compressor Features and Accessories Table 6 Rating Basis and Capacity Multipliers for R-12 and R-134a* Table 7 Rating Basis and Capacity Multipliers for R-502 and R-507/404A Table 8 Compressor Ratings; R-12 Page Table 8 Compressor Ratings; R-12 (cont) Table 9 Compressor Ratings; R-22 Page Table 9 Compressor Ratings; R-22 (cont) Table 10 Compressor Ratings; R-502 Page Table 10 Compressor Ratings; R-502 (cont) Table 11 Compressor Ratings; R-134a Table 12 Compressor Ratings; R-507/404A Page Capacity Control AB Table 16 Capacity Control Reduction Steps Fig. 6 Capacity Control 5F20, 5F30 Fig. 5 Operating Sequence of Capacity Reduction Steps Page Page Page FRONT VIEW BOTTOM VIEW Fig. 12 5F40 and 5F60 Compressors Fig. 13 Recommended Solenoid Valve Operation A DEENERGIZED, FLOW A-B LOADS STEP B ENERGIZED, FLOW B-C UNLOADS STEP Page Hot Gas Bypass Hot gas bypass may be required on Motor Selection Data Motor selection data based on Drive Packages Table 20 indicates drive package Table 20 Belt Drive Packages Rating Basis All booster ratings* are given in refriger- R Factors In a multistage compression system, the Multistage System Pointers A staged system is Safety Factors Use of capacity safety factors in select- Page Determining Intermediate Pressure In applica- Gas Desuperheating Operation of a direct staged Liquid Cooling It is also necessary to employ liquid Oil Separators and Lubrication In cascade-type Page Discharge Valve Springs When 5H compressors Water-Cooled Heads Standard 5F,H compressors Motor Selection Data In staged refrigeration sys- Compressor Starting Torque Required compres- (6.8 )x 100 100 = 19.3 or 20% Table 25 5F,H Booster Ratings; R-12 Table 26 5F,H Booster Ratings; R-22 Table 27 5F,H Booster Ratings; R-502 CONDENSERS Condenser Physical Data Refer to Table 29. Re- Condenser Selection Considerations On most Condenser Duty The capacity of a given compressor Pulldown Condensers for systems subject to pulldown Fouling and Fouling Factors Fouling in con- Table 29 Condenser Physical Data Table 30 Max Condenser Tube Water Velocity Table 31 Condenser Gpm at Various Water Velocities* Water Circuiting Arrangements The water cir- Economics Selection of a condenser requires balancing