Lennox International Inc ComfortSenset 3000 Series Non-Programmable Thermostat operation manual

E2008 Lennox Industries Inc.

Dallas, Texas, USA

RETAIN THESE INSTRUCTIONS

FOR FUTURE REFERENCE

L3011C Thermostat

The Lennox ComfortSenset 3000 Series model L3011C non-programmable electronic thermostat is easy-to-use, has a large, easy-to-read display, and provides excellent temperature control. The thermostat also includes a pro- grammable filter change reminder, and a system check in- dicator which will notify the user of the need for equipment service.

Thermostat model L3011C t is suitable for non-heat pump, single−stage heat/single cool applications that are matched with a gas or electric furnace.

General

These instructions are intended as a general guide and do not supersede local codes in any way. Consult authorities having jurisdiction before installation.

Check equipment for shipping damage. If you find any damage, immediately contact the last carrier.

Introduction

This document describes the operation of Lennox model L3011C thermostat. Refer to the installation manual for instructions regarding installation and wiring of the thermo- stat.

02/08

OPERATION MANUAL

ComfortSenset 3000 Series

Model No. L3011C

Non-Programmable Thermostat

CONTROLS

506079−01

02/08Litho U.S.A. Supersedes 504,865M

Table of Contents

L3011C Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Initial Thermostat Power-up . . . . . . . . . . . . . . . . . . . . . 1

Heating Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Cooling Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Adjusting Temperature Setpoint . . . . . . . . . . . . . . . . . 3

Fan Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Filter Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Service Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Thermostat RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Default Thermostat Settings . . . . . . . . . . . . . . . . . . . . 5

Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . 5

Thermostat Output Table . . . . . . . . . . . . . . . . . . . . . . . 6

Initial Thermostat Power-up

When power is initially applied to the thermostat, the dis- play will appear as shown in figure 1.

	88	FILTER
ROOM		SERVICE
		FAN
		ON
	88	AUTO
SETPOINT		SYSTEM
		COOL
		OFF
		EMG.
		HEAT

Figure 1. Display − Initial Power−Up

All display segments are momentarily activated. This oc- curs as a normal part of thermostat initialization. Within a few seconds, the display will appear as shown in figure 2 (figure shows temperature in Fahrenheit units).

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