Emerson AE4-1395 manual Electrical Shock Hazard, Pressurized System Hazard, Burn Hazard

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Application Engineering

 

 

 

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Instructions Pertaining to Risk of Electrical Shock, Fire, or Injury to Persons

AE4-1395

WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow these warnings could result in serious personal injury.

Disconnect and lock out power before servicing.

Discharge all capacitors before servicing.

Use compressor with grounded system only.

Molded electrical plug must be used when required.

Refer to original equipment wiring diagrams.

WARNING

PRESSURIZED SYSTEM HAZARD

Failure to follow these warnings could result in serious personal injury.

System contains refrigerant and oil under pressure.

Remove refrigerant from both the high and low compressor side before removing compressor.

Never install a system and leave it unattended when it has no charge, a holding charge, or with the service valves closed without electrically locking out the system.

Use only approved refrigerants and refrigeration oils.

Personal safety equipment must be used.

WARNING

BURN HAZARD

Failure to follow these warnings could result in serious personal injury or property damage.

Do not touch the compressor until it has cooled down.

Ensure that materials and wiring do not touch high temperature areas of the compressor.

Use caution when brazing system components.

Personal safety equipment must be used.

CAUTION

COMPRESSOR HANDLING

Failure to follow these warnings could result in personal injury or property damage.

Use the appropriate lifting devices to move compressors.

Personal safety equipment must be used.

Safety Statements

• Refrigerant compressors must be employed only for their intended use.

install, commission and maintain this equipment.

All valid standards and codes for installing, servicing, and maintaining electrical and refrigeration equipment must be observed.

© 2012 Emerson Climate Technologies, Inc.

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Printed in the U.S.A.

 

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Contents Introduction SafetyAssembly Line Procedures Service ProceduresSafety Icon Explanation Safety InstructionsBurn Hazard Safety StatementsElectrical Shock Hazard Pressurized System HazardApplication Considerations 410A 22 & R-407CNomenclature Digital Compressor Operation How it WorksPiping Sound CharacteristicsSolenoid Valve and Coil Pressure FluctuationsOil Type and Oil Removal Scroll Temperature ProtectionPower Factor Crankcase HeatersDigital Compressor Retrofit Applications Modulation ControlApplication Tests Oil Level VerificationCompressor Selection & Change-Out Retrofit Applications To AvoidPerformance Modeling System ModificationsAssembly Line Procedures To 15 Ton Modulation Valve Replacement Procedure Service ProceduresModulation Troubleshooting To 7.5 Ton Modulation Valve Replacement ProcedureForm No Copeland Scroll Compressor Functional Check50% Loaded 80% Loaded To 15 Ton Digital Scroll Cross Sectional View ZPD34-54K5 22, R-407C, R-410A Operating EnvelopeCompressor Capacity Graph Discharge Thermistors Second Operating Cycle AE4-1395To 7.5 Ton Tandem Yes Refrigerant Charge Limits Model Pounds PartFoot-Pounds Inch-Pounds TBD