ℹ️ Document Conversion Notice: This document has been converted from PDF and formatted to fit this screen. Diagrams and images may be available only in the original here.

Lennox Elite Series EL21KLV Heat Pump Installation Instructions

This document provides essential installation instructions for the Lennox Elite Series EL21KLV Heat Pump. Designed for efficient and reliable performance, this unit utilizes advanced variable-capacity technology and operates with R454B refrigerant.

Key Features & Compatibility

Variable capacity cooling system with variable speed compressor technology.
Designed for use with R454B refrigerant.
Compatible with S40 communicating thermostats or standard 24VAC non-communicating thermostats.
Requires installation with an approved indoor air handler or coil for AHRI Certified system match-ups.

Important Safety Information

Installation and service must be performed by a licensed professional HVAC installer or equivalent. Always follow local codes and safety warnings to prevent property damage, personal injury, or loss of life. Refer to detailed manuals for specific procedures.

For comprehensive system ratings and compatibility information, visit LennoxPros.com.

Models: EL21KLV, EL21KLV Outdoor Heat Pump, Outdoor Heat Pump, Heat Pump

File Info : application/pdf, 29 Pages, 5.21MB

508493-01

References

HVAC Supplier | LennoxPros

Adobe PDF Library 17.0

Related Documents

	Lennox Elite Series EL19KPV Units Installation Instructions Comprehensive installation guide for Lennox Elite Series EL19KPV Heat Pump Units, covering safety, unit setup, refrigerant piping, electrical wiring, and performance checks.
	Lennox Elite Series EL18KSLV Heat Pump Installation Instructions Comprehensive installation instructions for the Lennox Elite Series EL18KSLV Heat Pump units. Covers general information, operating range, safety warnings, installation procedures, refrigerant handling, electrical connections, and unit operation for residential and light commercial applications. Includes model variants and technical specifications.
	Lennox EL297DFV Elite Series Gas Furnace Installation Instructions Detailed installation instructions for the Lennox EL297DFV Elite Series Gas Furnace, covering setup, safety, venting, electrical, and operational guidelines for professional installers.
	Lennox Elite ELXP Series Heat Pump Installation Instructions Installation instructions for Lennox Elite ELXP Series heat pumps, covering models 6, 7.5, and 10 tons. Includes safety warnings, table of contents, model number identification, unit dimensions, plumbing and control box arrangements, rigging, installation clearances, line set, electrical connections, system operation, defrost system, and maintenance.
	Lennox EL297DFV Gas Furnace Installation Instructions Comprehensive installation guide for the Lennox EL297DFV Elite Series gas furnace, detailing setup, safety, venting, electrical, and operational requirements for professional installers.
	Lennox TPA Series Heat Pump Service Manual: TPA090S4S & TPA120S4S Comprehensive service manual for Lennox TPA Series heat pump units (TPA090S4S, TPA120S4S). Covers specifications, components, installation, operation, maintenance, and troubleshooting for light commercial applications.
	Lennox Merit Series CBK45UHVT Air Handler Installation Instructions Comprehensive installation instructions for Lennox Merit Series CBK45UHVT Air Handler Units designed for R410A refrigerant. Covers unit overview, wiring diagrams, blower control and speed adjustment, electrical connections, requirements, dimensions, installation clearances, installation procedures for upflow, horizontal, and downflow applications, condensate drain setup, duct system and filters, refrigerant line brazing, unit sealing, check-out procedures, maintenance, and decommissioning. Includes safety warnings and important notes.
	Lennox EL18KCV Elite Series Air Conditioner Installation Instructions Comprehensive installation guide for the Lennox EL18KCV Elite Series variable capacity air conditioner, covering safety, placement, refrigerant piping, electrical connections, and start-up procedures using R454B refrigerant.