Commercial Thermostat
Owner’s Manual
Part Numbers 33CS2PPRH-01 and 33CS2PP2S-01
EDGE® Pro
33CS
SAFETY CONSIDERATIONS
Read and follow manufacturer instructions carefully. Follow all local electrical codes during installation. All wiring
must conform to local and national electrical codes. Improper
wiring or installation may damage thermostat.
Recognize safety information. This is the safety alert symbol . When the safety alert symbol is present on equipment
or in the instruction manual, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, and
CAUTION. These words are used with the safety alert symbol.
DANGER identifies the most serious hazards which will result
in severe personal injury or death. WARNING signifies a hazard which could result in personal injury or death. CAUTION
is used to identify unsafe practices which would result in minor
personal injury or property damage.
GENERAL
The Edge Pro thermostat by Carrier is a wall-mounted, lowvoltage control which combines temperature and humidity
control in either a single or two-piece unit. The Edge Pro thermostat can be set for 7-day, 5/2-day, or 1-day programmable
operation. Different heating and cooling set points and times
are programmable for 2 or 4 periods per day. The thermostat
can also be configured for non-programmable operation. When
operating as a non-programmable thermostat, the user will still
have both temperature and humidity control.
The Edge Pro thermostat has no need for batteries to store
user-configured settings in memory. During power loss its internal memory saves settings for unlimited time, and the clock
continues to run for at least 24 hours. An extension of Carrier’s
proven line of thermostats, the Edge Pro thermostat provides
separate set points for heating and cooling in addition to humidification and dehumidification.
• programming option (indicates which settings are being
adjusted)
• system is in auxiliary (supplemental) mode
• cooling set point
• heating set point
• year
• holiday schedule return date
•day
• length of time for temporary temperature hold (override)
• month
• outdoor temperature
• leaving air temperature
• time period start
• period of the day
Thermostat Front Panel Buttons — The thermo-
stat has buttons under the front cover which are used for various functions such as raising or lowering the desired set point
and changing the current mode. See Fig. 2.
SET BUTTON — This button enters the thermostat programming schedule and allows the user to adjust the clock and
change the calendar.
SCHEDULE BUTTON — This button allows the user to
choose to follow a schedule, hold the current set points, or go
into holiday mode.
OCCUPIED BUTTON — This button temporarily changes
the thermostat from Unoccupied to Occupied settings.
MODE BUTTON — This button selects whether the thermostat is set for heating, cooling, emergency heat, auto (heat and
cool as needed), or off modes.
DONE BUTTON — This button saves the settings when
completing a setup or programming step.
a33-9188
OPERATION
Thermostat Display —
ed in the center of the thermostat. See Fig. 1. The following
information can be displayed on the screen:
• day of the week
• programming option (indicates which settings are being
adjusted)
• filter and UV lamp service reminders
• current temperature
• current program routine (follow scheduled programming, hold current settings, or run holiday program)
• fan mode (on, auto)
• current system mode (heating, cooling, emergency heat,
heat/cool (auto), off)
• humidify or dehumidify settings
• Fahrenheit or Celsius display
• advanced programming indicators
• keypad locked or unlocked
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53330011-01 Printed in U.S.A. Form 33CS-20SO Pg 1 7-08 Replaces: New
The thermostat display is locat-
holiday
occ
occ2
occ3
unocc
Fig. 1 — Thermostat Display
a
holiday
occupied
holiday
holiday
occ
occ2
a
occ3
unocc
a33-9189
soft keys
Fig. 2 — Thermostat Front Panel Buttons
UP BUTTON — This button is used to increment the currently chosen value (temperature, clock, calendar, etc.).
DOWN BUTTON — This button is used to decrement the
currently chosen value (temperature, clock, calendar, etc.).
“SOFT” BUTTON — There are 6 soft buttons (or keys). The
soft buttons are used to select the onscreen indicator directly
above that specific button. These indicators can change based
on the actions of the user.
Set Time and Date — The user must set the time and
date before the thermostat’s programming features can be used.
Perform the following procedure:
1. Open the thermostat front panel door.
2. Press the set button. The screen will show the word
“clock” on the left of the display and the time will be
shown on the bottom. Press the set button again.
3. To set the correct hour, press the soft button underneath
the hour indicator, and then press the up or down buttons
to adjust the value.
4. To set the correct minutes, press the soft button underneath the minutes indicator, and then press the up or
down buttons to adjust the value.
5. To set the correct date, press the set button until the screen
displays the word “calendar” and the date is shown on the
bottom of the screen.
6. To set the correct month, press the soft button underneath
the letter M (month), and then press the up or down buttons to adjust the value.
7. To set the correct day of the month, press the soft button
underneath the letter D (day), and then press the up or
down buttons to adjust the value.
8. To set the correct year, press the soft button underneath
the letter Y (year), and then press the up or down buttons
to adjust the value.
9. Press the done button to finish.
10. Close the thermostat door.
Setting or Changing Heating and Cooling Set
Points —
heating and cooling temperature settings. The user can use
these settings or change them. The user can also temporarily
change the temperature from the programmed set points.
To temporarily hold the temperature for two hours, perform
the following. Open the front thermostat door. An arrow will be
displayed next to the words “off,” “heat,” or “cool” in the upper
The Edge® Pro thermostat is installed with preset
right corner on the screen, depending on the mode the system is
in. If it is the first time the thermostat is being used, the “heat”
indicator will be displayed. The preprogrammed heating or
cooling temperatures are displayed in a box at the bottom of the
screen. Change the displayed temperature set point by pressing
the up or down buttons until the desired setting is reached.
To change other temperature set points, press the mode button. The arrow will move to the next mode and the screen will
show the related temperature set point in a box. Then press the
up or down buttons to change the displayed set point.
When there are arrow indicators next to both of the heat and
cool indicators, the heating and cooling set points are both displayed at the bottom of the screen. The user can change either
one by pressing the soft button underneath the set point to be
changed. Press the up or down buttons to adjust the temperature. Repeat the process for the other set points if necessary.
Press the done button when finished.
The thermostat will hold these changes for two hours or until the next programmed cycle begins. The words “temporary
hold” will be displayed while this is in effect. To change the
amount of time that the temperature is on hold, press the soft
button under the hold hours or minutes indicators. Then press
the up or down buttons to adjust the time hold time. Close the
door when done.
Holding Temperature Set Points — The user can
override the programmed temperature settings and hold the
temperature at a specific setting without the temperature
changing during the next programmed period. To override the
temperatures, perform the following:
1. Open the door.
2. Press the schedule button. The arrow will move to the
hold indicator.
3. The screen will display the set point temperature. To
change the set point temperature, press the up or down
buttons. The temperature will stay at the new setting until
it is released from the hold.
4. To change the heating set point when the cooling set
points are displayed (and vice versa), press the mode button until the arrow moves to the desired mode. Press the
up or down buttons to change the set point.
5. To return the temperature to the preset level for that time
period, press the schedule button until the arrow moves to
the following schedule indicator.
6. Close the door.
Programming Schedules — Unlike many other
thermostats, the Edge Pro thermostat gives the user the option
of programming every day of the week differently. The thermostat is preprogrammed at the factory with the same settings
for all seven days. See Table 1.
Table 1 — Schedule Factory Settings
PERIOD
Occ 6 AM 68 78
Occ2 8 AM 68 78
Occ3 3 PM 68 78
Unocc 6 PM 60 85
START
TIME
To set up a different schedule where all the days are the
same, perform the following:
1. Open the thermostat door.
2. Press the set button until the screen displays “daily schedule” in the center of the screen. The list of the days of the
week are displayed on the left. The arrows next to each
day indicate that all seven days will be programmed the
same way.
HEAT SET
POINT
COOL SET
POINT
2
3. The arrow will be pointing to “occ” on the screen. To set
the occ period start time, press the soft button under the
hour or minute indictor and then press the up or down
buttons to change the time.
4. Set the heating temperature set point for that time period
by pressing the soft button under the heat set point temperature. Press the up or down buttons until the desired
heating temperature is shown.
5. Set the cooling temperature set point for that time period
by pressing the soft button under the cool set point temperature. Press the up or down buttons until the desired
cooling temperature is shown.
6. Repeat this process for each of the three remaining time
periods (occ2, occ3, and unocc) by first pressing the soft
button under the time period to select it with the arrow.
Then use the soft keys to change the start time, the heating set point, and the cooling set point.
7. Press the done button when complete.
8. Close the thermostat door.
To set up a schedule where all days of the week will not fol-
low the same schedule, perform the following:
1. Fill in Table 2 with the desired times and set points for
each day. Use this table as a guide during programming
and for future reference.
2. Open the thermostat door.
3. Press the set button until the screen displays “daily schedule” in the center of the screen. The list of the days of the
week are displayed on the left.
4. There will be arrows next to each day. This indicates that
all seven days will be programmed the same way. Press
the soft button under the days of the week until the arrow
is next to the day that will be programmed.
5. The arrow will be pointing to “occ” on the screen. To set
the occ period start time, press the soft button under the
hour or minute indicator and then press the up or down
buttons to change the time.
6. Set the heating temperature set point for that time period
by pressing the soft button under the heat set point temperature. Press the up or down buttons until the desired
heating temperature is shown.
7. Set the cooling temperature set point for that time period
by pressing the soft button under the cool set point temperature. Press the up or down buttons until the desired
cooling temperature is shown.
8. Repeat this process for each of the three remaining time
periods (occ2, occ3, and unocc) by first pressing the soft
button under the time period to select it with the arrow.
Then use the soft keys to change the start time, the heating set point, and the cooling set point.
9. Press the soft button under the days of the week until the
arrow is pointing to the next day that will be programmed.
10. Repeat Steps 5 to 8 to program the current day.
11. Repeat this process until all the days have been programmed.
12. Press the done button when complete.
13. Close the thermostat door.
Programming a Holiday Schedule — The user
can program a special heating and cooling schedule to follow
during holidays or extended absences. To program the holiday
schedule, perform the following:
1. Open the thermostat door.
2. Press the set button until the screen displays the holiday
settings.
3. Set the heating temperature set point for the holiday by
pressing the soft button under the heat set point temperature. Press the up or down buttons until the desired heating temperature is shown.
4. Set the cooling temperature set point for the holiday by
pressing the soft button under the cool set point temperature. Press the up or down buttons until the desired cooling temperature is shown.
5. Set the humidity set point for the holiday by pressing the
soft button under the humidify icon. Press the up or down
buttons until the desired humidity is shown.
NOTE: A humidify icon will only be shown for
33CS2PPRH thermostats.
6. Set the mode for the thermostat during the holiday by
pressing the mode button. Press the mode button until the
arrow is pointing to the desired mode.
7. Press the done button when complete.
8. Close the thermostat door.
Activating the Holiday Program — The user must
schedule a return date to activate the holiday settings before
leaving. The thermostat will begin following the holiday
schedule after the return date has been selected. On 12:00 AM
of the return date, the thermostat will automatically switch to
the programmed schedule.
To activate the holiday program, perform the following:
1. Press the schedule button until the arrow is next to “holiday.”
2. The next day’s date will be displayed at the bottom of the
screen under the words “return on.” There will be a box
Table 2 — Daily Schedule Planner
DAY
OF THE
WEEK
Monday // // // //
Tuesday // // // //
Wednesday // // // //
Thursday // // // //
Friday // // // //
Saturday // // // //
Sunday // // // //
NOTE: The cooling temperature set point must be higher than the heating temperature set point. (The temperature difference may be changed in
the advanced set up configuration by the installer.)
Start Time / Heat / Cool Start Time / Heat / Cool Start Time / Heat / Cool Start Time / Heat / Cool
Occ Occ2 Occ3 Unocc
SCHEDULE
3
around the date. To set the date (D), press the up button
and stop on the desired date.
3. If the month (M) needs to be changed, press the soft button under the month on the screen. The selection box will
move to the month number. Press the up button to set the
desired month.
4. Repeat this process to change the year (Y), if necessary.
5. Press the done button. This will instruct the thermostat to
begin the Holiday schedule immediately.
6. Close the thermostat door.
Turning the Heating and Cooling System Off
To use the thermostat to turn the heating and cooling sys-
—
tem off, perform the following:
1. Open the thermostat door.
2. Press the mode button until the display shows “off” in the
upper left corner.
3. Close the thermostat door.
Changing the Humidity Level — The thermostats
offer three humidity options: normal, auto, and off.
The thermostat is set at the factory for “normal humidify,”
which is a fixed humidity setting based on how much humidity
the user wants in the space. This humidity level remains constant, regardless of the outdoor temperature. The user can manually adjust the humidity level according to their own preferences.
The second option, “auto humidify,” uses an outdoor temperature sensor (if installed) to automatically adjust the indoor
humidity level according to the outside temperature.
The third option is to turn off the humidify/dehumidify
feature.
To change the fixed (constant) humidity setting for normal
humidify, perform the following procedure:
1. Open the thermostat door.
2. The “humidify” icon will be displayed at the bottom of
the screen when the operating mode is heat. The “dehumidify” will be displayed when the operating mode is
cool.
3. Press the soft button under the humidify or dehumidify
icons. The screen will display the current setting.
NOTE: A humidify icon will only be shown for
33CS2PPRH thermostats.
4. Press the up or down buttons to change the humidity setting. It is factory set at 26% for humidify and 60% for dehumidify. If there is too much condensation in the space,
set the value to a lower number. If the air is too dry, set the
value to a higher number. Humidity can be set to between
10% and 46%. The dehumidify range is from 46% to
98%.
5. Close the thermostat door.
To change the humidity setting for auto humidify, perform
the following procedure:
1. Open the thermostat door.
2. The “humidify” icon will be displayed at the bottom of
the screen. Press the soft button under the humidify icon.
The screen will display the current setting.
NOTE: A humidify icon will only be shown for
33CS2PPRH thermostats.
3. Press the mode button. An auto icon will appear at the top
of the screen. The current humidity reading and the auto
humidify set point will also be shown. The default auto
humidify set point is 5.
4. Press the up or down button to change the auto humidify
setting number (1 through 9). If there is too much
condensation on the windows, select a number lower than
5. If there seems to be a lot of static electricity, which often means the air is too dry, select a number higher than 5.
5. Close the thermostat door.
To turn off the humidify or dehumidify feature open the
thermostat door. Press the soft button under the humidify or dehumidify icons. Then press the mode button until the screen
displays OF. Close the themostat door.
Using Emergency Heat — Emergency heat should be
selected when it is desirable to heat the space with the auxiliary
heat only.
To set the thermostat to use emergency heat, open the ther-
mostat door. Press the mode button repeatedly until the arrow
under the button moves to the Em heat indicator on the screen.
Close the thermostat door.
Advanced Programming — The user can customize
several features of the thermostat. See Table 3.
Table 3 — Configuration Options
OPTION
NUMBER
01 Reset Reminders
02 Fahrenheit/Centigrade Selection
03 Backlighting
04 Keypad Lockout
05 Programmable/Nonprogrammable Selection
06 Number of Programming Periods
07 Unused
08 Daylight Savings Time
RESET REMINDERS — The thermostat will display when
it is time to change the UV (ultraviolet) light, change the filter,
or perform scheduled maintenance to the equipment. When the
reminder icons are displayed on the screen, pressing and holding the done button for about 3 seconds will clear all reminders.
This might not be the best option when multiple reminders are
shown.
The reminders can also be reset individually. To reset indi-
vidual reminders, perform the following:
1. Open the thermostat door.
2. Press and hold the buttons underneath the heat and cool
set points simultaneously. The screen will display “01”
and up to three reset reminders (as have enabled by the
installer). One of the reminders will flash. The display
will show the percentage of time used by that reminder
item.
3. Repeatedly press the set button until the reminder to be
cleared flashes.
4. Press and hold the done button for about 3 seconds to re-
move the reminder. The percentage associated with the
reminder will be reset to zero.
5. Press the done button again.
6. Close the thermostat door.
FAHRENHEIT OR CELSIUS DISPLAY — The thermostat
is preset to display the temperature in degrees Fahrenheit. The
user can change the display to Celsius if desired. To change the
display, perform the following:
1. Open the thermostat door.
2. Press and hold the buttons underneath the heat and cool
set points simultaneously. The screen will display “01”
and up to three reset reminders.
3. Press the up arrow button until 01 changes to 02. The F
(Fahrenheit) will also be displayed.
4. Press the soft button under the F icon until C (Celsius)
appears.
CONFIGURATION
4
5. Press the done button.
6. Close the thermostat door.
BACKLIGHTING — The thermostat may feature a low level
amount of backlighting until a button is pressed, which increases the lighting temporarily. The user can adjust the intensity of
the backlighting or turn it off completely. The range is off (OF),
and 1 to 5 levels of brightness. To change the backlighting level, perform the following:
1. Open the thermostat door.
2. Press and hold the buttons underneath the heat and cool
set points simultaneously. The screen will display “01”
and up to three reset reminders.
3. Press the up arrow button until 01 changes to 03. The
number 3 (the default backlight setting) will be displayed
next to it.
4. To increase the backlight level, press the rightmost soft
button and then press the up arrow button until 4 or 5 appears. To decrease the backlight level, press the rightmost
lower button and then press the down arrow button until 2
or 1 is shown. Change the setting to OF to completely remove backlighting.
5. Press the done button.
6. Close the thermostat door.
KEYPAD LOCKOUT — The keypad lockout feature lets the
user “lock” the thermostat at one of three levels. these levels increasingly limit any one using the thermostat’s ability to make
changes. The levels are:
• OF — the feature is turned off
• 1 — a user can change the temperature settings, the time
of day, and the day of the week only
• 2 — a user can change the temperature settings only
• 3 — the entire thermostat is locked, no changes can be
made
Perform the following to set the lockout level of the
thermostat:
1. Open the thermostat door.
2. Press and hold the buttons underneath the heat and cool
set points simultaneously. The screen will display “01”
and up to three reset reminders.
3. Press the up arrow button until 01 changes to 04. The OF
icon (the default lockout setting) will be displayed next to
it.
4. Press the rightmost soft button and then press the up arrow button until the desired lockout level is shown. A
padlock icon will be shown if options 1 through 3 are
chosen.
5. Press the done button.
6. Close the thermostat door.
To temporarily unlock the keypad, open the thermostat door.
Press and hold the up and down buttons simultaneously for
about 5 seconds. The padlock icon will disappear. This means
the keypad is unlocked and can be used. The keypad will revert
back to the locked state after no buttons are pushed for 2 minutes. Close the door.
PROGRAMMABLE / NONPROGRAMMABLE SETTING — It is possible to convert the thermostat operation
from programmable to nonprogrammable. This eliminates the
advanced features. When switching to the nonprogrammable
format, the programming, hold, holiday and Smart Recovery
features are lost. Switching to nonprogrammable operation also
means that some of the thermostat’s energy saving features are
lost. The time of day and day of the week will still show on the
display and the user will still be able to increase or decrease the
temperature settings manually.
To switch thermostat operation, perform the following:
1. Open the thermostat door.
2. Press and hold the buttons underneath the heat and cool
set points simultaneously. The screen will display “01”
and up to three reset reminders.
3. Press the up arrow button until 01 changes to 05. The P
icon (the default setting) will be displayed next to it.
4. Press the rightmost soft button and then press the up arrow button until the desired operation is shown. P stands
for programmable and nP stands for non-programmable.
5. Press the done button.
6. Close the thermostat door.
NUMBER OF PROGRAMMING PERIODS — The thermostat is preset with four programmable time periods. This can
be changed to two. To change the number of time periods, perform the following procedure:
1. Open the thermostat door.
2. Press and hold the buttons underneath the heat and cool
set points simultaneously. The screen will display “01”
and up to three reset reminders.
3. Press the up arrow button until 01 changes to 06. The
number 4 (the default setting) will be displayed next to it.
4. Press the rightmost soft button and then press the up arrow button until the desired number of time periods is
shown.
5. Press the done button.
6. Close the thermostat door.
DAYLIGHT SAVINGS TIME — The thermostat will automatically change the clock according to daylight savings time
procedures twice a year. Some areas do not use daylight savings time. To turn off the daylight savings time feature, perform
the following procedure:
1. Open the thermostat door.
2. Press and hold the buttons underneath the heat and cool
set points simultaneously. The screen will display “01”
and up to three reset reminders.
3. Press the up arrow button until 01 changes to 08. The ON
icon (the default setting) will be displayed next to it.
4. Press the rightmost soft button and then press the up arrow button until the desired number setting (OF) is
shown.
5. Press the done button.
6. Close the thermostat door.
Service Reminders — The thermostat tells the user
when it is time to change the UV light, change the filter, or perform scheduled maintenance. Each reminder will be displayed
on the upper left of the screen. For important safety reasons, do
not change a UV light; ask your dealer to replace the UV light.
To remove the reminder after the service has been performed,
press and hold the done button for about 3 seconds.
Outdoor Temperature Display — The thermostat
automatically displays the outdoor temperature when the thermostat door is closed.
Auto Changeover — The thermostat displays one of
five modes: heat, cool, Em heat (heat pump version only), heat
cool (auto mode) and off. When the mode selection is auto
mode, the system is allowed to switch from heating to cooling
or from cooling to heating to maintain the temperature set
points.
Smart Recovery — The Smart Recovery feature transi-
tions the space from one temperature period (occ, occ2, occ3,
unocc) to the next so that the space temperature matches the
temperature set point at the start of each time period. This
5
means, for example, that if the unocc period temperature setting is lower than the period that precedes it, then the thermostat will start cooling down the space before the beginning of
the scheduled unocc period. The thermostat does this at an energy efficient rate. This not only helps make the space as comfortable as possible, it also makes thermostat usage more cost
effective.
Power Outage — If the building loses electricity, the
thermostat will not need to be reprogrammed. The settings are
retained in memory.
TROUBLESHOOTING
There are system error messages that may appear on the
thermostat screen. See Table 4 for a list the possible system error messages and what they mean.
Table 4 — Thermostat Error Code Descriptions
ERROR
CODE
E1
E3
E4
E5
The system is not communicating properly. Call the
local Carrier representative for service
The temperature sensor has failed. Call the local
Carrier representative for service
There is an internal memory failure. Call the local
Carrier representative for service
The humidity sensor is not working. Call the local
Carrier representative for service
DESCRIPTION
6
Copyright 2008 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53330011-01 Printed in U.S.A. Form 33CS-20SO Pg 8 7-08 Replaces: New
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