Lennox ComfortSense 7500 Instructions de montage

Installation and Setup

Guide

Color Touchscreen

Programmable Thermostat

ComfortSense®7500 (13H14)

Table of Contents

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

ComfortSense®7500 Thermostat 3........

Features 3.............................

Thermostat Installation

Mounting Thermostat 6...................

Wiring Thermostat 11.....................

Installer Settings

Menu (Installer Settings) 21...............

Humidity 37.............................

Dehumidity 38..........................

Unit Part (Catalog) and Serial Number 41....

Memory Protection 41....................

Appendix A. Flow Diagrams 42............

Appendix B. Diagnostic Information 43......

Appendix C. Supported Configurations 47...

Appendix D. Installer Checklist 49..........

Shipping and Packing List

1 - ComfortSense

®7500 touchscreen, 7-day

programmablethermostat and back plate

2 - Mounting screws (M3.5x25mm self-tapping

screws)

2 - Wall anchors

1 - Wall plate

1 - Warranty certificate

1 each - Homeowner and Installer Guides

NOTE - This thermostat is equipped with

automatic compressor protection to prevent

potential damage due to short cycling or extended

power outages. The short-cycle protection

provides a 5-minute delay between heating or

cooling cycles to prevent the compressor from

being damaged.

IMPORTANT

Read this manual before programming the ther

mostat.

Use this thermostat only as described in this man

ual.

ComfortSense®7500 Thermostat (Catalog

No. 13H14)

Description

The ComfortSense®7500 thermostat is an

electronic 7-day universal multi‐stage

programmable touch screen thermostat. It also

offers enhanced capabilities which include:

humidification measurement and control,

dew point adjustment control,

dehumidification measurement and control,

Humiditrol

®Enhanced Dehumidification

Accessory (EDA) capability,

equipment maintenance reminders,

worry-free memory storage feature,

menu-driven touch-screen display.

This thermostat supports heat pump or non-heat

pump units, with up to two stage heat pump and

two auxiliary stages or two stages of heating and

two stages of cooling.

Dimensions (H x W x D)

Case dimensions: 3-5/16 x 4-5/16 x 7/8 in. (84 x

110 x 22mm)

Features

Compressor Short-Cycle Protection

A 5-minute compressor short-cycle protection

timer begins when a compressor output is

de-energized. Also, if a power loss occurs, the

system will go into compressor protection mode

and display “waiting” next to either a snow flake

icon (compressor cooling), or flame icon

(compressor heating) in the display.

Outdoor Temperature Sensor

An outdoor temperature sensor (X2658) is

required for dual fuel applications, balance points,

dew point humidity control, and with Humiditrol®

EDA.

In addition to measuring and displaying outdoor

temperature, the outdoor sensor provides dew

point adjustment and control for all models. If used

with this thermostat, the sensor enables optimal

heating equipment operation via programmable

balance points.

NOTE - The outdoor sensor uses standard

thermostat wiring; it may be wired using two wires

of a multi-wire cable.

When the outdoor sensor is connected, the

outdoor temperature on the home screen can be

displayed.

NOTE - For proper operation of Humiditrol®EDA

applications, the outdoor sensor (X2658) MUST

be installed.

Figure 1. Outdoor Sensor

For detail installation requirements and

procedure, refer to the instruction provided with

the kit.

IMPORTANT

The outdoor sensor must be connected to oper

ate a system with a Humiditrol®accessory.

Installing Remote Outdoor Sensor

Install the remote outdoor sensor on a northern

wall of the home, away from direct sunlight or other

heat sources that may affect its sensitivity.

WARNING

Improper installation, adjustment, alteration,

service or maintenance can cause property

damage, personal injury or loss of life.

Installation and service must be performed by a

licensed professional HVAC installer (or equiv

alent) or service agency.

CAUTION

This is a 24VAC low-voltage thermostat. Do not

install on voltages higher than 30VAC.

Do not short (jumper) across terminals on the

gas valve or at the system control to test instal

lation. This will damage the thermostat and void

the warranty.

IMPORTANT

In all applications, the ComfortSense®Model

7500 thermostat can only be used with all

residential units and approved commercial

split‐system matches, and those which meet

the following installation criteria:

installation uses 18 GAUGE thermostat

wire or larger,

thermostat wire run length DOES NOT

EXCEED 300' (91m),

load from any thermostat connection is 1

AMP or LESS.

CAUTION

Always turn off power at the main power source

by switching the circuit breaker to the OFF posi

tion before installing or removing this thermo

stat.

All wiring must conform to local and national

building and electrical codes and ordinances.

THERMOSTAT INSTALLATION

Before beginning installation, note the type of

equipment, number of stages, and any

accessories being installed. This thermostat is a

24VAC low-voltage thermostat and requires a

common wire to the thermostat to operate.

Shut off all power to system before installing.

Read this entire document, noting which

instructions pertain to your equipment and

system requirements.

Make sure that all wiring conforms to local

and national building and electrical codes and

ordinances.

Use thermostat wire between the thermostat

and the optional outdoor temperature sensor

(may be separate wire pair or two wires of a

multi-wire cable).

Ensure load from any thermostat connection

is less than 1 AMP.

DO NOT

Install on voltages higher than 30VAC.

Short (jumper) across terminals on the gas

valve or at the system control to test

installation. This will damage the thermostat

and void the warranty.

Install on outside walls or in direct sunlight.

Exceed thermostat wire run length greater

than 300 feet (91m).

INSTALLING THERMOSTAT

1. Unpacked the thermostat and open the case

with a thin-blade screwdriver. Place between

wall base and unit and twist to separate unit

from base.

2. Select a location for the thermostat about 5

feet (1.5m) above the floor in an area with

good air circulation at average temperature.

3. Do not install the thermostat where it can be

affected by:

 Drafts or dead spots behind doors

and in corners.

 Not close to entrance or automatic

doors

 Not close to heat generating

equipment such as kitchen equipment

 Not in an enclose environment unless

a remote indoor sensor is used.

 Hot or cold air from ducts.

 Radiant heat from sun or appliances.

 Concealed pipes and chimneys.

 Unheated (uncooled) areas such as

an outside wall behind the thermostat.

Figure 2. Removing Back Plate

4. Use steps Athrough J (step Japplicable

when using provided wall plate) to install the

thermostat.

CUT OR DRILL A SMALL HOLE

FOR THERMOSTAT WIRING

¾” x ¾”

PULL ABOUT 3” OF THERMOSTAT

WIRE THROUGH OPENING AND RE

MOVE OUTER THERMOSTAT WIRE

JACKET.

THIS WILL HELP IN

ROUTING THE THER

MOSTAT WIRING TO

THE PROPER THER

MOSTAT TERMINALS

1/4”

TRIM 1/4” INSULATION FROM

END OF EACH WIRE

USE UNIT WALL PLATE AS TEMPLATE TO MARK

DESIRED MOUNTING HOLE LOCATIONS ON WALL.

(USE A LEVEL) ALIGN WALL PLATE

DRILL 3/16” HOLES AT MARKED LOCATIONS

ON WALL FOR ANCHORS

NOTE: INSTALLATION OF WALL PLATE IS

OPTIONAL.

Thermostat Installation with Wall Plate

F- Place wall plate over

holes in wall.

G- Insert wall anchors

through wall plate into wall.

H - Attach back plate to wall

plate.

I- Insert provided screws through back

and wall plates into wall anchors.

J- Attach thermostat to

back plate.

Thermostat Installation without Wall Plate

G- Place back plate

over wall anchors in wall.

F- Insert wall anchors

through wall plate into wall. H- Insert provided screws through

back plate into wall anchors.

I- Attach thermostat to

back plate.

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