Lennox X4146 Manual de usuario

E2005 Lennox Industries Inc.

Dallas, Texas, USA

Elite®Series 1 Heat / 1 Cool Programmable

Touch Screen Thermostat

INSTALLATION

INSTRUCTIONS

WARNING

This thermostat is to be installed by a qualified service technician or

other qualified agency in accordance with the manufacturer’s instruc-

tions, all codes, and requirements of the authority having jurisdiction.

505,043M

10/2005

Page 2

Table of Contents

General...................................Page 2

Shipping and Packing List........Page 2

NecessaryTools.......................Page 2

Thermostat Location................Page 2

Remove Existing Thermostat...Page 3

Thermostat Installation............Page 4

Wiring Connections..................Page 4

LED Indicator...........................Page 5

Outdoor Temperature Sensor...Page 5

Field Wiring Diagrams..............Page 6

Install Batteries........................Page 8

Attach T’stat to Wallplate..........Page 8

Set Calendar and Clock............Page 8

Installer Set−Up........................Page 9

System Test...........................Page 15

Troubleshooting.....................Page 16

General

The Lennox Elite®Series X4146 ther-

mostat provides control for single−

stage heating and cooling. The ther-

mostat may be used to control either a

conventional HVAC system which in-

cludes an outdoor condensing unit and

indoor furnace or a heat pump unit and

indoor air handler. The thermostat ter-

minal block accommodates 24V power

common from the furnace or air han-

dler. Three AAA alkaline batteries are

provided to be used as an alternate

power source or as a back−up in case

of an interruption of power.

Shipping and Packing List

Package 1 of 1 contains

1 − Assembled thermostat

(includes wallplate and thermostat)

1 − Bag assembly containing the fol-

lowing:

2 − Screws

2 − Wall anchors

3 − AAA alkaline batteries

1 − Installation instruction

1 − Owner’s guide

1 − Warranty certificate

Necessary Tools

•No. 2 Phillips screwdriver

•Standard pocket screwdriver

•Drill

•Drill bits (use 3/16" for drywall and

7/32" for plaster)

•Pencil

•Level

•Hammer

•Electrical tape

Thermostat Location

Install the thermostat about 5 feet

(1.5m) above the floor in an area with

good air circulation.

Do not install the thermostat where it

may be affected by the following:

•Drafts or dead spots behind doors

and in corners.

•Hot or cold air from ducts.

•Radiant heat from the sun or ap-

pliances.

•Concealed pipes or chimneys.

•Adjacent unconditioned areas

(outside wall behind the thermo-

stat)

Page 3

Remove Existing Thermostat

If this thermostat is being used to re-

place an existing thermostat, remove

the old thermostat:

1 − Turn off power at the heating and/or

cooling system or fuse/circuit

breaker panel.

2 − Remove the cover from the existing

thermostat.

3 − Remove securing screws and re-

move existing thermostat from wall

or wallplate. Disconnect the exist-

ing wires.

4 − Remove any remaining portion of

the existing thermostat from the

wall. Do not install the replacement

thermostat faceplate on the exist-

ing wallplate. Though the wall-

plates may appear to be the same

and the faceplate may fit on the ex-

isting wallplate, the terminal posi-

tions may vary in important ways.

In addition, serial number and part

number information is carried on

the replacement wallplate.

Do not allow the thermostat wires

to fall behind the drywall.

WARNING

This thermostat must be

installed using the provided re-

placement wallplate.

Failure to do so will bypass ther-

mostat control and activate con-

tinuous heating.

OLD THERMOSTAT

.18

.25 .3

NGER

THERMOSTAT

COVER

WALLPLATE

WARNING

MERCURY NOTICE

If the existing thermostat includes a mercury bulb, the thermostat must

be disposed of properly.

Contact your local waste management authority for instructions re-

garding recycling and proper disposal of thermostats which include

mercury bulbs.

Page 4

Thermostat Installation

The thermostat may be installed hori-

zontally in a 4 in. X 2 in. (101.6 mm X

50.8 mm) wiring box or on the wall us-

ing the provided anchors.

1 − Separate the wallplate from the

thermostat as shown.

THERMOSTAT

WALLPLATE

WIRE HOLE

2 − Pass the labeled wires through the

hole on the wallplate.

3 − Position the wallplate on the wall

with the arrow pointing up. Level

the wallplate (for appearance only)

and use a pencil to mark the mount-

ing holes.

WALLPLATE

LEVEL

PLACE LEVEL ON

SUPPORT TABS

MARK

MOUNTING

HOLES (2)

4 − If anchors are used, move the wall-

plate aside and drill two new holes

(3/16" for drywall; 7/32" for plaster).

5 − Tap the provided wall anchors into

the drilled holes until the back of the

anchor head touches the wall sur-

face.

6 − Position the wallplate over the an-

chors and pull the thermostat wires

back through the wiring opening.

7 − Secure the wallplate using the pro-

vided screws.

DRILLED

HOLES (2)

WALL

ANCHORS (2)

MOUNTING

SCREWS (2)

WALLPLATE

NOTE

Thermostat heat function will

not operate if thermostat has

been stored at, or is being used

in, ambient temperatures at or

above 90°F. Heat function will be

enabled after thermostat has

been placed in ambient tempera-

tures less than 90°F for about 30

minutes.

Wiring Connections

WARNING

Use minimum 18 guage wire for

all thermostat connections.

IMPORTANT

Do not connect the wires to this

thermostat based on wire color.

Improper wiring may cause

damage to the HVAC system.

Page 5

1 − Make wiring connections per the

appropriate wiring diagram on

pages 6 and 7. Refer to the table

below for terminal designations.

Terminal Description

WFirst−stage heating

(conventional)

S1 Remote outdoor sensor

S2 Remote outdoor sensor

R24V power

OReversing valve

BReversing valve

GFan relay

First−stage compressor

(Conventional or

heat pump)

C24V common

LEquipment monitor

2 − Refer to inner terminal labels when

using the thermostat with conven-

tional systems (gas, oil or electric

heat plus air conditioning). Refer to

outer terminal labels in heat pump

applications. See figure below.

3 − Loosen screws of terminals that will

be used. Insert appropriate wires in

the terminal block under the loos-

ened screws. Securely tighten

each screw.

INSERT WIRE IN HOLE

WIRE HOLE

WALLPLATE

SCREW

TERMINALS

LETTER

DESIGNATIONS

LABELED WIRES

TERMINAL

BLOCK

4 − Connect wires to the correspond-

ing screw terminals per the ap-

propriate diagram.

5 − Push excess wire back into the

wall.

6 − Plug hole with nonflammable in-

sulation to prevent drafts from af-

fecting thermostat.

LED Indicator

An LED indicator is located in the up-

per right corner of the thermostat. It is

only visible when lit.

When an equipment monitor is con-

nected to the thermostat L terminal,

the LED lights when the monitor sends

a check or failure message to the ther-

mostat.

The LED requires the use of 24Vac

common power. The indicator will not

light when the thermostat is powered

by the batteries alone, or when 24Vac

power is interrupted.

Outdoor Temperature Sensor

Install the optional outdoor tempera-

ture sensor (X4148) as outlined in the

instructions provided with the sensor.

Page 6

Field Wiring Diagrams

TYPICAL COOL ONLY SYSTEM

TYPICAL CONVENTIONAL SINGLE−STAGE HEAT / COOL SYSTEM

Page 7

Field Wiring Diagrams (Continued)

TYPICAL HEAT ONLY SYSTEM WITH FAN

TYPICAL HEAT ONLY SYSTEM

Page 8

Install Batteries

1 − Install three provided AAA alkaline

batteries in the back of the thermo-

stat as shown.

BACK OF THERMOSTAT

BATTERIES

(3)

2 − Remove tab from the lower right−

hand corner of the thermostat back

to activate the real−time clock.

REMOVE DURING

INSTALLATION

REMOVE

TAB

REMOVE DURING

INSTALLATION

Attach Thermostat to Wallplate

1 − Align the terminal blocks on the

walplate with the pins on the back

of thermostat.

2 − Push the thermostat straight onto

the pins until it snaps into place.

3 − Turn on power at the furnace or air

handler or at the fuse or circuit

breaker.

PINS ON

BACK OF

THERMOSTAT

WALLPLATE

TERMINAL

SCREW

BLOCK

Set Calendar and Clock

This thermostat is designed to auto-

matically keep the current time and

date in memory for up to ten years, un-

der normal use, once the calendar has

been set. When power is first applied to

the thermostat, the display is ready to

set the calendar.

1 − Use the arrow keys to set the year,

month and day.

2 − Press the DONE key.

DONE

USE

ARROWS

TO SET

YEAR

SET

CURRENT

DATE

SET

MONTH

MON WED THU FRI SATTUE

3 − Use the arrow keys to set the cur-

rent time.

4 − Press the DONE key.

DONE

MON WED THU FRI SAT

USE

ARROWS

TO SET

TIME

TUE

NOTE − Date and time may be ad-

justed after the initial set−up using ei-

ther the installer or user set−up menu.

Page 9

Installer Set−Up

Use the following steps and the Install-

er Set−Up menu to match the thermo-

stat to the HVAC system.

1 − Press and release the SYSTEM

key.

2 − Press and hold the two blank keys

on either side of the center blank

key for approximately five seconds.

MON

CANCEL

UET WED THU FRI SATAAT SUN

SS M

EMHT

Y TE

COOL

FOLLOWING

SCHEDULE

SET TO

OFF

DONE

3 − Release the two keys when the

thermostat display matches the

display below.

DONE

4 − Refer to the following figure to see

how the thermostat keys are used

to make selections from the set−up

menu.

DONE

INSTALLER

SET−UP

NUMBER CURRENT

SETTING

ADVANCE TO NEXT

INSTALLER SET−UP

EXIT

INSTALLER

SET−UP

CHANGE THE

CURRENT

SETTING

5 − The installer set−up number is dis-

played on the left−hand side of the

screen. The current installer set−up

number is displayed on the right−

hand side of the screen. Use the up

and down arrows on the right−hand

side of the thermostat to select the

proper setting for that particular

set−up number.

6 − After the proper selection has been

made, use the up arrow in the cen-

ter of the thermostat to advance to

the next set−up screen.

7 − Refer to the tables on pages 10

through 14 to make proper set−up

choices for your application.

8 − When all set−up selections have

been made, press the DONE key to

save your settings. Thermostat dis-

play will return to the main screen.

NOTE − Press and release the SYS-

TEM key, then press and hold the cen-

ter blank key to access the user set−up

screens. The user set−up options are

limited to those features that would be

used by the homeowner. Press the

DONE key when finished.

Page 10

Installer

Set−Up

Number

Installer

Set−Up

Name

Selection Description

(Factory setting in bold print) Notes

0120 Date

(Year/first)

Select first two digits of current calendar

year (20 for 2005, etc.)

Factory setting = 20.

0130 Date

(Year/last)

Select last two digits of current calendar

year (05 for 2005, etc.); 01 to 99 available.

0140 Date

(Month)

Select number that represents current cal-

endar month. Factory setting = 8.

0150 Date

(Day)

Select number that represents current cal-

endar date. Factory setting = 19.

0160

Schedule 0 − Non−programmable.

0160

Schedule

Options 4 − 7−day programming. Factory setting.

1 − Single−Stage Heating and Cooling

(Conventional). Factory setting.

Available

options

and de

2 − Single−Stage Heat Pump with No Back−

Up or Auxiliary Heat.

and

faults vary

by system

type

0170

System

Type

3 − Heat Only without Fan (Conventional)

−− Gas, oil or electric heating without cen-

tral air conditioning.

type

System

type

selection

tti

0170

ype

4 − Heat Only with Fan (Conventional). automati-

cally

modifies

5 − Hot Water Heat Only (Conventional) −−

Gas or oil hot water heat. Power open/

power close hot water zone valves or nor-

mally open valves.

modifies

certain

default

settings

and

installer

6 − Cooling Only (Conventional) −− Central

air conditioning only.

installer

set−up

options.

0180

Fan

Control

0 − Gas or Oil Heat −− Heating system

controls fan during heating demand.

Factory setting.

Available

only if

conven-

tional

system

chosen.

Settin

0180

Control

Heating

1 − Electric Heat −− Thermostat control fan

during heating demand.

Setting

defaults to

electric

heat if

heat

pump is

chosen.

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