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LENNOX EL18KCV Smart Wi-Fi Communicating Thermostat User Manual

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A I R C O N D I T I O N E R S

EL18KCV

ELITE^®SERIES

Variable Capacity | Precise Comfort^®Technology | Environ™ Coil | R-454B | 60Hz

R E S I D E N T I A L

P R O D U CT S P E C I F I C AT I O N S ( E H B )

2 to 5 Tons

SEER2 up to 19.5

Cooling Capacity | 22,000 to 58,500 Btuh

2025 COMPLIANT

REFRIGERANT

S40 Smart Wi-Fi

Communicating Thermostat

(not furnished - ordered separately)

MODEL NUMBER IDENTIFICATION

EL 18 K C V - 036 - 230 A 01

Product Tier

Revision Level

EL = Elite^®Series

Nominal SEER2

18 = 18.0 to 18.9

Ratings Revision Level

Refrigerant Type

Voltage

230 = 208/230V-1 phase-60Hz

K = R-454B

Unit Type

C = Air Conditioner (Condenser)

Nominal Cooling Capacity

024 = 2 tons

036 = 3 tons

Cooling Stages

V = Variable Capacity Compressor

048 = 4 tons

060 = 5 tons

Form Number 211055 | January 2025

Supersedes all previous versions

VIEW FULL SCREEN PDF MANUAL

General	Details
Name	LENNOX EL18KCV Smart Wi-Fi Communicating Thermostat User Manual
Make	Lennox
Language	English
Filetype	PDF (Download)
File size	2.82 MB

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Lennox Instructions & User Manuals

LENNOX L40 Smart Thermostat Owner’s Manual

LENNOX S40 Smart Thermostat User Guide

Get the free PDF manual for the LENNOX EL18KCV Smart Wi-Fi Communicating Thermostat User Manual and access setup steps, usage instructions, and troubleshooting tips. 👉 View online or download now to keep your thermostat running smoothly!

Lennox EL18KCV Manual: Questions and Answers

What do the red and green LEDs on the Lennox EL18KCV DC Inverter Control indicate?

They indicate inverter operating status and aid in troubleshooting. User Manual, p. 5

Can the Lennox EL18KCV operate in temperatures below freezing?

Yes, it can operate down to 0°F outdoor air temperature, though a freezestat is recommended for extra protection during low ambient operation. User Manual, p. 5

What does the seven-segment display on the Lennox EL18KCV show?

Information about outdoor unit type and capacity, plus alerts for common fault conditions (electrical and mechanical). User Manual, p. 5

How do I check the refrigerant charge on a Lennox EL18KCV?

Refer to the unit-mounted charging sticker to determine the correct amount of charge required. User Manual, p. 3

What is the compressor warranty period for Lennox EL18KCV in residential use?

Limited ten years in residential installations. User Manual, p. 3

How will I know if the system has lost refrigerant charge?

The low pressure transducer shuts off the unit if suction pressure falls below its setting, providing loss of charge protection. User Manual, p. 3