Lennox 14HPX Series Units Service Literature

Corp. 0719-L5 Revised 06-2008

14HPX Series Units

The 14HPX is a residential split-system heat pump designed for use with expansion valves (TXV) and HFC-410A refrigerant. All 14HPX units utilize scroll compressors.

14HPX series units are available in 1-1/2, 2, 2 -1/2, 3, 3 -1/2, 4 and 5 ton capacities. All major components (indoor blower and coil) must be matched according to Lennox recommendations for the compressor to be covered under warranty. Refer to the Engineering Handbook for approved system matchups.

This manual is divided into sections which discuss the major components, refrigerant system, charging procedure, maintenance and operation sequence.

Information contained in this manual is intended for use by qualified service technicians only. All specifications are subject to change.

ELECTROSTATIC DISCHARGE (ESD) Precautions and Procedures

CAUTION
Electrostatic discharge can affect electronic components. Take precautions during unit installation and service to protect the unit's electronic controls. Precautions will help to avoid control exposure to electrostatic discharge by putting the unit, the control and the technician at the same electrostatic potential. Neutralize electrostatic charge by touching hand and all tools on an unpainted unit surface before performing any service procedure.

WARNING
Refrigerant can be harmful if it is inhaled. Refrigerant must be used and recovered responsibly. Failure to follow this warning may result in personal injury or death.

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