Lennox ComfortSense 5500 User manual

User Guide
Color Touchscreen
Programmable Thermostat
ComfortSense®5500
Model: 13H13
507500-02
5/2017
Supersedes 507500-01

2
TABLE OF CONTENTS
Features 2.....................................
Temperature Dial Indicator 3......................
Home Screen ..................................
Selection Mode 8...............................
Select Modes 9..............................
Fan Operation ...............................
9
Menu 10.......................................
Notifications 11...............................
Performance Report 13........................
Edit Schedules 13............................
Settings (user) 15............................
Settings Descriptions (user) 15....................
Features
The ComfortSense®5500 Series thermostat is an
electronic 7-day, single-stage, programmable,
touchscreen thermostat. Features are:
SLarge, clear color display that shows the
current and set temperatures and time.
SErgonomic design.
SSmooth Setback Recovery starts system
early to achieve setpoint at start of program
period.
SCompressor short-cycle protection (5
minutes).
SReal-time clock keeps time during power
failures and automatically adjusts for daylight
savings time and leap year.
SProgram hold options allow user to override
the program schedule as desired by time and
date.
SSelect individual days or groups of days to set
programming.
SProgrammable fan offers increased
performance when combined with whole
home indoor air quality products.
WARNING
This product contains a chemical known to the
State of California to cause cancer, birth defects,
or other reproductive harm.

3
Temperature Dial Indicator
2:31 am
heat−to
cool−to
78
inside
heat/cool
away
72°
78°
0
ⒸⒷ Ⓐ
Ⓔ
Ⓓ
Ⓕ
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 figure 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.

4
Home Screen
2:31 am
heat−to
cool−to
inside
schedule 1
away
62°
76°
X
0
Ⓒ
Ⓑ
Ⓘ
Ⓐ
ⒺⒻ
Ⓖ
Ⓗ
Ⓓ
Ⓔ
Ⓕ
78
waiting
Schedule hold
until 12:30 pm
Figure 2. Home Screen

5
Touch the screen to turn on the backlight 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
schedule 3. 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.
cancel
C. Displays current time.
D. Menu - This will allow access to notifications,
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. Displays the current indoor temperature.

6
H. Indicates the schedule is on hold until the next
time period or permanent.
1. 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.
2. After approximately three seconds the
screen will display the override setting
options.
3. From the override setting screen, the
options are 1 hour, 2 hour or Permanent.
Make selection and then touch set.
4. 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 Ⓧ.
5. For the permanent setting the screen will
indicate schedule hold permanently.To
exit schedule hold, touch Ⓧ.
NOTE - When in any hold status, the mode
status area on the screen will go to the
current status mode. For example, from
schedule 1 to heat/cool.
I. 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
Screen Icon Description
Red flames indicates the system
is heating.
Blue flames indicates the system
is cooling.
waiting
Snow flake indicates the next
mode of operation will be cooling.
Waiting indicates there is a com
pressor delay which has a de
fault of five minutes and is not
adjustable.

7
Table 1. System Status Icons (continued)
Screen Icon Description
+Red flame with a plus indicates the system is running in emergency heat mode.
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 first stage compressor based
cooling. When smooth set back recovery is disabled, the control will start recovery at
the programmed time set in the schedule.

8
Selection Mode
Touch anywhere in the area indicated below to select how the system will operate.
2:31 am
heat−to
cool−to
78
inside
schedule 1
away
72°
78°
0
Figure 3. Home Screen (Accessing Mode Screen)

9
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 3) 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 thermostat will indicate the current fan mode in
the information display (FAN ON or FAN CIRC).
In the CIRCULATE mode, the fan will follow the
setting configured 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 is selected in addition to
selected mode of operation.
Table 2. Fan Operation
on
Fan is NOT following
the schedule and runs
continuously until it is
changed from the se
lect 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.

10
Menu
Touch the three lines in the upper right-hand corner of the screen to access the menu. Selectable
options under menu are notifications, performance report, edit schedules and settings.
menu
performance report
notifications 13
edit schedules
settings
heat−to
cool−to
72°
78°
8
0
ool
Figure 4. User Menu Screen