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General| Brand | Tecumseh |
|---|---|
| Model | AH5540E |
| Category | Air Compressor |
| Language | English |
States the handbook's purpose to assist service personnel with Tecumseh hermetic compressors.
Stresses that servicing requires necessary knowledge, training, and equipment.
Details hazards and precautions to avoid injury from electrocution or terminal venting.
Advises on protective measures when handling refrigerants and chemicals to prevent injury.
Outlines precautions for safely removing a compressor to prevent injury or death.
Details precautions for safe system purging and leak testing to prevent explosions.
Provides safety precautions for system charging to prevent explosion or fire.
Warns about explosion risks in water-utilizing systems and outlines necessary precautions.
Explains the hazard of start capacitor overheating and the need for checking.
Advises on proper methods for system evacuation using a vacuum pump.
Highlights the importance of reading and following labels and markings on the product for safety.
Explains the coding system used for Tecumseh compressor model numbers.
Details the coding system for Tecumseh condensing unit model numbers.
Describes the information found on compressor serial labels for identification.
Covers application specifics like evaporator temperatures and refrigerant compatibility.
Describes the four general types of single-phase motors used in compressors.
Explains the starting characteristics and influencing factors for PSC compressor motors.
Details the function and types of thermal protectors that protect compressor motors.
Explains the types and functions of motor starting relays used in compressors.
Guides on selecting appropriate capacitors, including bleeder resistors and substitution.
Illustrates and explains how to identify compressor terminal pins for various models.
Provides guidelines for sizing fuses and circuit breakers for compressor motor branch circuits.
Introduces the chapter's focus on identifying and correcting compressor problems.
Reinforces critical safety practices before commencing any servicing procedures.
Addresses specific safety concerns and procedures for water-utilizing systems.
Offers a chart to correlate common complaints with possible causes and responses.
Details procedures for checking compressor electrical circuits and components.
Explains how to check motor windings for continuity and resistance.
Guides on checking thermal protectors, relays, and capacitors in single-phase motors.
Illustrates and explains standard discharge tubing arrangements and connection types.
Provides recommended line sizes for various refrigerants based on capacity and velocity.
Explains the function and operation of rotolock service valves.
Outlines the essential steps for preparing a refrigeration system for operation.
Details procedures for cleaning systems and replacing compressors after motor failure.
Provides guidelines to assess the level of system contamination after compressor failure.
Lists steps for installing a new compressor and associated components.
Explains proper methods for evacuating a refrigeration system to a deep vacuum.
Guides on charging the system and checking pressure drop across the filter-drier.
Details how to measure pressure drop after system operation for filter-drier sizing verification.
Advises on testing oil for acidity after multiple motor failures to ensure system cleanliness.
Emphasizes system monitoring and repeated drier changes for cleanup success.
Addresses specific explosion risks when replacing compressors in water-utilizing systems.
Explains how liquid refrigerant migrates to the compressor during shutdown and its effects.
Demonstrates the effect of a crankcase heater in preventing liquid refrigerant migration.
Discusses the types and functions of crankcase heaters for compressor protection.
Provides guidelines for starting a system when liquid refrigerant is present in the compressor.
Details how liquid floodback occurs during operation and its impact on the compressor.
Guides on selecting the correct size of suction accumulator based on system charge.
Explains the function of internal pressure relief valves in preventing high head pressures.
Explains the fundamental principles and components of a mechanical refrigeration cycle.
Provides a description of the internal parts and operation of a typical Tecumseh hermetic compressor.
Shows an internal view of a typical air conditioning compressor, illustrating its components.
Offers suggested data for selecting capillary tube sizes for domestic and commercial refrigeration.
Lists approved and alternate compressor oils and their common uses in different compressor families.
A blank section for user notes.
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