Lennox ComfortSense 7500 Series Manual de usuario

507505-02

6/2018

Supersedes 5/2017

ComfortSense®7500 Commercial

Thermostat

User Guide

Table of Contents

Features................................................................2

Home Screen Temperature Indicator.................2

Home Screen Information...................................3

Operating Mode Selection ..................................5

Select Modes ................................................................. 5

Fan Operation ................................................................ 6

User Menu Screen ...............................................7

Notications.................................................................... 7

Reminders...................................................................... 7

Performance Report....................................................... 8

Edit Schedules ............................................................... 8

User Settings Menu...........................................10

Features

The ComfortSense®7500 Series thermostat is an

electronic 7-day, universal, multi-stage, programma-

ble, touchscreen thermostat.

• supports commercial package rooftop units

• smooth set recovery starts system operation

• early to achieve setpoint at start of program period

• economizer control

• dehumidication measurement and control

• equipment maintenance reminders

• worry-free memory storage feature

• menu-driven touch-screen display

• dehumidication measurement and control

• Humiditrol®EDA capability

Home Screen Temperature Indicator

2:31 am | thurs

heat−to

cool−to

inside 57%

heat/cool

away

72°

78°

outside

89°

waiting

ⒸⒷ

Ⓐ

Ⓔ

ⒹⒻ

occupied

Figure 1. Temperature Dial Feature

A. This is the heat set point position indicator on

the dial. This object will be red in color.

B. This is the cool set point position indicator on the

Dial. This object will be blue in color.

C. This is the location area where no system

demand is active. In gure 1, the example would

be any temperature between 73°F and 77°F.

D. When there is an active call for heating, this area

of the dial will fade back and forth from white to

red.

E. When there is an active call for cooling, this area

of the dial will fade back and forth from white

to blue.

F. The yellow line indicates the actual room

temperature on the temperature dial indicator.

Home Screen Information

2:31 am thurs

occupied

heat−to

cool−to

inside 57%

heat/cool

away

72°

78°

outside

89°

Schedule hold

until next period

Ⓛ

holiday

Ⓒ

Ⓜ

Ⓑ

Ⓚ

Ⓐ

Ⓘ

ⒺⒻ

Ⓖ

Ⓙ

Ⓓ

Ⓔ

Ⓕ

Ⓗ

waiting

Figure 2. Home Screen

Touch the screen to turn on the back-light if it is off.

A. OPERATING MODE - touch to access the

screen that will list available modes. Selectable

modes are heat/cool, heat only, cool only, off,

emergency heat, schedule 1, schedule 2, and

holiday. In addition fan operation can be set to

on, auto or circulate.

B. AWAY - Selecting AWAY will allow the user to set

the heating and/or cooling mode temperatures

when away from home. Touch cancel to exit

this screen and return to the home screen and

normal system operations.

C. Displays current time.

D. Menu - This will allow access to notications,

performance report, schedules and settings.

E. This allows you to set the heat-to (if enabled)

temperature. Selecting the heat-to or

temperature dial position indicator will take you

to the temperature setting detail screen. The

temperature dial will change from white to red

when heating is active.

F. This allows you to set the cool-to (if enabled)

temperature. Selecting the cool-to or

temperature dial position indicator will take you

to the temperature setting detail screen. The

dial will change from white to blue when cooling

is active.

G. Indicates the current indoor humidity percentage

in the home along with a humidity icon (rain

drop). The icon changes based on the humidity

level in the home.

H. This location could display the outdoor

air temperature. What is displayed in that

location depends on what sensor is installed

and congured through the thermostat user

interface. If neither is installed, then this area

will be blank.

I. Displays the current indoor temperature.

J. Indicates the schedule is on hold until the next

time period or permanent.

• Place the schedule on hold by touching on

either the heat-to or cool-to location on the

screen. If an adjustment is required for the

temperature setting, this can be done now.

• After approximately three seconds the

screen will display the override setting

options.

• From the override setting screen, the

options are 1 hour, 2 hour or next scheduled

period. Make selection and then touch set.

• For the 1 or 2 hour setting the home

screen will indicate schedule hold until time

indicated (i.e., 11:57 pm). To exit schedule

hold, touch X

• When until next period is selected, the set

point will be kept until the next program

schedule period. To exit until next period,

touch X.

K. System Status Icons - Equipment operation

information appears along the left side of the

home screen. The displayed icons will indicate

cooling or heating demand, cooling compressor

delay, or cooling demand.

Table 1. System Status Icons

Icon

Description

NOTE: Touching the icon will display a

text description.

Humidifying icon is displayed when

humidifying is occurring. Touching on

the icon will display humidifying next to

the icon.

Dehumidifying icon is displayed when

dehumidifying is occurring. Touching

the icon will display dehumidifying next

to the icon.

Red ames indicates the system is

heating.

Table 1. System Status Icons

Icon

Description

NOTE: Touching the icon will display a

text description.

Blue ames indicates the system is

cooling.

Snow ake indicates the next mode

of operation will be cooling. Waiting

indicates there is a compressor delay

which is by default ve minutes.

Red ame indicates the next mode

of operation will be heating. Waiting

indicates there is a compressor delay

(heat pump heating) which has a default

of ve minutes and is not adjustable.

Indicates the system is running in

emergency heat mode.

All heat pumps operating in northern

climates below 35°F (1.6°C) normally

need a supplemental heating source.

Usually it is in the form of electric

heating provided by the indoor unit.

Other sources could be gas, oil, or

hot-water back-up systems as well. The

supplemental heat is also referred to

as “second-stage” or “back-up” heating,

with “rst-stage” being the heat pump

only. Emergency heat is when you use

your supplemental heat (2nd stage) by

itself, without the use of your heat pump

(1st stage heat). Not available for non-

heat pump systems.

Table 1. System Status Icons

Icon

Description

NOTE: Touching the icon will display a

text description.

Indicates the system is running in

auxiliary heat mode.

Is only available with heat pump

system. If outdoor temperature is above

the high balance point, only the heat

pump will operate - default 50°F (10°C)

high. If outdoor temperature is below

the low balance point, only auxiliary

heating will operate - default 25°F

(-4.0°C) low. If outdoor temperature is

in-between the high and low balance

point, both the heat pump and auxiliary

heat sources can operate.

Transitioning to next schedule

temperature setting. This icon will only

appear if smooth setback recovery is

enabled under the installer setup. When

enabled, it will begin recovery up to

two hours before the programmed time

so that the programmed temperature

is reached at the corresponding

programmed event time. Assume 12°F

per hour for gas/electric heating and

6°F per hour for rst stage compressor

based cooling. When smooth set back

recovery is disabled, the control will

start recovery at the programmed time

set in the schedule.

L. Holiday Mode - Selecting this option allows for

overriding schedules for holidays and special

days. When in this mode the thermostat will not

follow regular schedules. This override can be

setup for up to four days. Go to menu > user

settings > edit schedules and select Holiday. To

exit Holiday mode, touch the cancel button on

the home screen.

M. Indicates whether in occupied or unoccupied

mode when running a regular schedule. This will

be displayed when running schedule 1 or 2 and

holiday. Under edit schedules, either occupied

or unoccupied can be set under the day time

event (occ1, unocc1, occ2 and unocc2).

Operating Mode Selection

Touch anywhere in the area indicated below to se-

lect how the system will operate.

holiday

heat−to

inside 57%

schedule 1

away

68°

outside

32°

waiting

2:31 am thur

occupied

Figure 3. Operating Mode Selection

Select ModeS

1. HEAT/COOL allows the thermostat to switch

between heating and cooling automatically.

2. HEAT ONLY allows only heating demand.

3. COOL ONLY allows only cooling demand.

4. OFF indicates system has been turned off.

5. EMERGENCY HEAT allows heat pump system

to use a secondary heat source to come on

and reach the desired user temperature setting

faster.

6. SCHEDULES (1, 2 or holiday) See Edit

Schedules on page 13 for customizing

schedules).

7. ON, AUTO and CIRCULATE - Select by

touching the desired fan operation ON, AUTO

and CIRCULATE. When selected a green check

mark will be indicated.

If FAN mode AUTO, ON or CIRCULATE is selected

during scheduling for the current period, the ther-

mostat will indicate the current fan mode in the in-

formation display (FAN ON or FAN CIRC). In the

CIRCULATE mode, the fan will follow the setting

congured under menu > settings > fan >select

fan mode. Under circulate the circulate off time can

be set from 1 to 30 minutes.

Fan operation

The desired fan mode can be selected in addition to

selected mode of operation.

Table 2. Fan Operation

Icon Mode Description

Fan is NOT following the

schedule and runs continuously

until it is changed from the

select mode.

auto Fan will follow the fan setting in

the selected schedule.

circulate

Fan is following schedule

and cycles during periods of

equipment inactivity. Circulate

off time is set by the user.

User Menu Screen

Touch the three lines in the upper right-hand cor-

ner of the screen to access the menu. Selectable

options under menu are notications, performance

report, edit schedules and settings.

performance report

notifications 13

edit schedules

settings

Figure 4. User Menu Screen

notiFicationS

When a system error or reminder occurs, a pop-up

screen will appear indicating the condition.

• Error code notication pop-up can be dismiss by

touching the back button. Contact the dealer to

resolve the issue.

• For notication, touch either clear or set a future

reminder.

• Any active history for notications (critical errors

or reminders will be listed under settings >

notication.

• If critical errors occur, they will also be displayed

under notications as illustrated in gure 6.

• Touch the contractor info option for assistance.

notifications

high temperature protection

error code: 0004

05/22 12:23pm

dealer info

critical reminders

Figure 5. Critical Notications

reMinderS

When reminders occur, they will also be displayed

under notications as illustrated in gure 7. Touch

the clear or remind later to redisplay active reminder

for 1 day, 1 week, 1 month, 3 months or a custom

date.

notifications

critical

media filter

reminders

05/22 12:23pm

Clear remind later

Figure 6. Reminder Notications

perForMance report

This will display the total number of hours each

month that the system has been running. Example

would be for mar (March) 23H or 23 hours. To re-

turn to the menu screen, touch the house icon in the

upper left-hand corner of the screen. Red bar indi-

cates heating and blue indicates cooling hours ran.

edit ScheduleS

Any schedule can be edited by touching the right

arrow next to the desired schedule.

edit schedules

schedule 1

schedule 2

holiday

add schedule

Figure 7. Edit Schedules Screen

NOTES: See “Operating Mode Selection” on page

5 to run a specic schedule.

From the HOME screen touch the MENU and touch

edit schedules option.

The edit schedules screen will allow section of up

too three separate schedules. On the edit schedules

screen, each schedule can be renamed and edited.

See “Figure 8. Renaming and Editing Schedules”

on page 9 for editing schedules.

NOTES: The fan mode that is selected under

the edit schedules screen will always

override the fan mode selected under the

select mode screen or user settings > fan

screen if different

For example, if the select mode fan setting or user

settings > fan is congured for Auto, and the

schedule fan mode is set to circulate, then the sys-

tem will follow the fan mode selected in the active

schedule.

edit schedules

schedule 1

·schedule 2

·schedule 3

schedule x

(rename)

·select days

·select mode

select days

·individual days

·week/weekend

·all 7 days

select mode

·heat/cool

·heat only

·cool only

Individual

days

·Monday

·Tuesday

·Wednesday

·Thursday

·Friday

·Saturday

·Sunday

·OCC1

·UNOCC1

·UNOCC2

·UNOCC3

Week /

weekend

·week

·weekend

all 7 days All days

wake

(rename)

time

·cool-to

·heat-to

·fan

·occupancy

time select time or

delete period

If period deleted

* A maximum of four time periods can be used. If any time periods are

deleted, an option to add a time period back will appear on this screen.

select fan mode

·auto

·circulate

·cool-to

and/or

·heat-to

select occupancy

occupied

·unoccupied

To navigate to the next

screen in the selection

process, always touch the

right-arrow next to the

desired option.

Figure 8. Renaming and Editing Schedules

User Settings Menu

Table 3. User Settings (General)

Setting Selection Function Description

fan See “Fan Operation” on page 6.

heat / cool (either heat

pump, gas or electric

heating is selected)

normal Heats home to desired temperature setting. Options are on or off.

comfort If system is two-stage heating or cooling, then 2nd stage is locked in

until demand is satised.

emergency

heat

Bypasses the rst stage of heating (any stage[s] of heat pump heating)

and goes directly to the heat stage used for maximum heating to more

quickly warm a very cold house.

set point

range

Heating limit with a default of 0°F. Range is 45°F to 90°F

Cooling limit with a default of 45°F. Range is 45°F to 99°F

cool only (option only

appears if no heating

equipment is avail able or

congured)

set point

range Cooling limit with a default of 45°F. Range is 45°F to 99°F

humidity - Allows selection

of dehumidication. Option

only available if enabled in

installer settings.

dehumidify Options are ON and OFF. Allows dehumidify adjustment setting

between 45% to 60%. Default is 50%.

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