Carrier 33CSCPACHP-01, Comfort Pro 33CSCPACHP-01 Owner's Manual

Fig. 1 — Thermostat Button Identification

(Door Open)

a33-9220

Commercial Thermostat

Owner’s Manual

Part Number 33CSCPACHP-01

Comfort™ Pro

Programmable

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

Carrier’s Comfort Pro programmable thermostats are wall­mounted, low-voltage thermostats which maintain room tem­perature by controlling the operation of a heating and/or air
conditioning system. This thermostat can be used with a heat
pump, air conditioner or water source heat pump operation. A
variety of features are provided including battery operation,
separate heating and cooling set points, auto changeover, key­pad lockout, and backlighting. Programming is available for ei­ther 2 or 4 periods per day. The programming interface is a one
touch interface, with the Comfort selections Occupied, Unoc­cupied, and Limit (Energy Savings Mode). The user can adjust
the heating and/or cooling set points for each of the three com­fort selections.

• DONE (6) — Saves settings when completing a set-up
or programming step

• LIMIT (7) — Indicates occupied heating and cooling
settings for the program period which are predefined and
more energy efficient

• UNOCC (8) — Activates heating and cooling settings
for the unoccupied program period

• OCC (9) — Activates heating and cooling settings for
the occupied program period

• D/H/M SET CLOCK (10) — Activates clock set mode
day/hour/minutes settings

• START TIME (11) — Activates the programming menu,
displaying the programmed start times

• PERIOD (12) — Activates the programming menu, dis­playing the programmed time periods

• DAYS (13) — Activates programming menu, displaying
three options - all days, weekdays and weekends

hold

run

fan

set
schedule

o
Em
heat

heat

fan
auto
fan
on

aux

actual temp

on

temporary

hold

start

at

OCC LIMITUNOCC

push and hold to set

days period start time

F

°

C

°

weekdays

cool

on:

all days

weekend

d/h/m

clock

done

set

3

mode

2

1

4

5

6

7

8

9

OPERATION

Thermostat Button Identification —

ing buttons are located on the thermostat display. See Fig. 1 for
button locations.

• FAN (1) — Selects whether the fan operates continu­ously (on) or only when needed for heating or cooling
(auto)

• HOLD/RUN (2) — Holds the currently selected temper­ature or runs the scheduled program

• MODE (3) — Selects whether thermostat is set for heat­ing, cooling, emergency heat, auto (heat and cool as
needed), or off

• UP (4) — Increases the temperature or adjusts the screen
selection up when setting advanced programming
features

• DOWN (5) — Decreases the temperature or adjusts the
screen selection down when setting advanced program­ming features

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53330022-01 Printed in U.S.A. Form 33CS-22SO Pg 1 8-11 Replaces: New

10111213

The follow-

Thermostat On-Screen Indicators — The follow-

ing on-screen indicators can be displayed on the thermostat dis­play. See Fig. 2 for location of indicators.

•Clock (1)

• Fan mode - on or auto (2)

• Selected heating set point; "on" indicates system is in
heating mode (3)

• System is in auxiliary (supplemental) mode (4)

• Current temperature (5)

• Thermostat mode is either off or using emergency heat
(Em Heat) (6)

• Fahrenheit units (7)

• Keypad is locked (no padlock means unlocked) (8)

• Celsius units (9)

OCC LIMITUNOCC

push and hold to set

o
Em
heat

fan
auto

fan
on

aux

heat

on

cool

on:

°

F

°

C

temporary

hold

all days

weekdays

weekend

start

at

actual temp

6

5

4

3

2

1

7

8

9

10

11

12

13

141516171819

Fig. 2 — Thermostat On-Screen Indicators

a33-9218

• Battery strength indicator (10)

• Selected cooling set point; "on" indicates system is in
cooling mode (first stage of cooling) (11)

• Second stage of cooling (12)

• Day of the week for programming mode (13)

• System is using Limit settings (14)

• AM or PM indicator for current time (15)

• System is using unoccupied settings (16)

• System is in hold (17)

• System is in temporary hold override (18)

• System is using occupied settings (19)

Setting Time and Day of Week — 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 d/h/m button located on the lower right under
the display screen. The hours will be displayed and will
flash.

3. Press the up or down button located to the right of the
display to change the hours. Rotate through the hours to
change AM and PM.

4. Press the d/h/m button again and the minutes will flash
on the display.

5. Press the up or down button to change the minutes. Stop
on the correct number.

6. Press the d/h/m button again and the day of the week will
flash on the display.

7. Press the up or down button to change the day of the
week. Stop on the correct day.

8. Press the done button or close the thermostat front panel
door.

Setting Cooling and Heating Temperatures —

The thermostat is installed with preset cooling and heating
temperature settings. The user can use these settings or change
them. Perform the following procedure to change temperature
settings:

1. Open the thermostat front panel door.

2. Press the up or down button located on the right side of
the display. The preset temperature settings for cooling
and heating are displayed. The word “cool” will flash.

3. Press the up or down button to change the cool setting.
Stop on the correct setting.

NOTE: The temporary hold icon will be displayed for 15
minutes. See page 3 for more information on Temporary
Hold Override.

4. To change the heating set point, press the mode button
until the heat icon begins to flash.

5. Press the up or down button to change the heat setting.
Stop on the correct setting.

6. For automatic switching from the cooling cycle to the
heating cycle or from heating to cooling, both the cooling
and heating settings must be displayed. If cooling only is
desired, only the cooling set point should be shown. If
heating only is required, only the heating set point should
be shown in the display. To change which modes are dis­played, continue to press the mode button until the de­sired modes of operation are displayed.

7. Press the hold/run button to save these settings.

Using OCC, UNOCC and LIMIT Buttons —

When the user presses the OCC, UNOCC, or LIMIT button,
the preset temperature settings will be viewed and a triangle
icon will appear above the OCC, UNOCC, or LIMIT button
indicating which presets are being used.

The LIMIT button is used for an occupied period with set­tings that are less conditioned than the Occupied settings but
more conditioned than the unoccupied settings. This is used as
an occupied energy savings function.

The default set points for the Comfort settings OCC, UN-
OCC and LIMIT are listed in Table 1.

Table 1 — OCC, UNOCC, and LIMIT Settings

ONE-TOUCH

SETTING

OCC 68 78

UNOCC 60 85

LIMIT 66 80

The set points for the OCC, UNOCC, and LIMIT One­Touch functions can be modified from their factory defaults us­ing the following procedure:

1. Open the thermostat front panel door. The heat or cool
icon flashes indicating to the user that pressing the up and
down buttons will change the set point value next to the
flashing icon.

2. Change the setpoint of the flashing mode by pressing the
up or down button. The heat or cool icon and the triangle
icon above the OCC, UNOCC, and LIMIT button will
flash.

3. If desired, change the set point of the opposite mode by
pressing the mode button until the opposite mode icon is
flashing. The opposite mode icon and the triangle icon
above the OCC, UNOCC, and LIMIT button flashes.

4. Press the up or down button to change the opposite mode
set point.

5. Then press and hold either OCC, UNOCC, or LIMIT
button for 3 seconds. The triangle icon above the OCC,
UNOCC, or LIMIT button will stop flashing and remain
on. The heat and/or cool set point will flash once when
complete.

NOTE: The thermostats are shipped with fully accessible
keypads. The installer has the option to change the access
to the keypad. This function will not be allowed if keypad
lock 2 or 3 is enabled. This will be allowed if the keypad
lock is disabled or set to 1.

6. Close thermostat door.

7.

Repeat at Step 1 to program set points for another period,
if desired.

2

HEAT

SET POINT

COOL

SET POINT

OCC LIMITUNOCC

push and hold to set

set
schedule

days period start time

set

clock

d/h/m

mode

fan

done

all days

start

at

hold

run

:

Fig. 3 — Programming the Thermostat

a33-9221

Programming Schedules — The Comfort Pro pro-

grammable thermostat gives the user the option of program­ming for all days, weekdays, or weekends. The thermostat is
preprogrammed at the factory with the same settings for all
seven days. See Table 2.

Table 2 — Schedule Factory Settings

PERIOD

P1 (OCC) 6 AM 68 78
P2 (OCC) 8 AM 68 78
P3 (OCC) 3 PM 68 78

P4 (UNOCC) 6 PM 60 85

START

TIME

Prior to programming a customized schedule, fill out the

Daily Schedule Planner in Table 3.

Table 3 — Daily Schedule Planner

DAY

Mon // // // //

Tu e // // // //

Wed // // // //

Thu // // // //

Fri // // // //

Sat // // // //

Sun // // // //

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.)

P1 Occ P2 Occ2 P3 Occ3 P4 Unocc

Start/Heat/Cool Start/Heat/Cool Start/Heat/Cool Start/Heat/Cool

To set up a different schedule, perform the following proce-

dure (see Fig. 3):

1. Open the thermostat front panel door.

2. Press the set schedule days button until the screen dis­plays the programming method of all days, weekdays or

weekend icons at the right of the screen. Press the up or
down button to change as necessary to the desired pro-

gramming selection icon.

3. Press the period button to continue programming the
thermostat. The periods are displayed as P1 through P4 if
Option 25 was set to 4 periods/day or P1 through P2 if
Option 25 was set to 2 periods/day. Press the period but­ton to display the next programmable period.

4. As each period is displayed, the comfort setting that is
used for that period is displayed, along with whether it is
in the occupied, unoccupied or limit configuration as
shown by the triangle over the OCC, UNOCC or LIM-
IT buttons. Change the OCC, UNOCC or LIMIT con­figuration by pressing the appropriate button and the tri­angle will move to that setting.

5. To change the time for a period, press the start time but­ton and use the up and down buttons to change the hours.

6. Press the start time button again to change the minutes
using the up and down buttons.

7. To go to the next programming period press the period
button twice. Enter in the changes for all of the periods as
described in Steps 4, 5 and 6 above.

8. Press the done button when complete.

9. Close the thermostat door.

NOTE: Once a change is made to the programming schedule,
it is saved when the user moves along to the next programming

HEAT SET

SCHEDULE

POINT

COOL SET

POINT

interval or level. Changes within a given programming period
are considered temporary changes that require user confirma­tion by either closing the door or pressing the done button
which would confirm any changes made up to that point.

If dashes "--:--" appear in the display this is an indication that
the start time in the period displayed is not the same start time
in all periods. Press the start time and update the time for the
HVAC equipment to start.

Temporary Hold Override — The user can temporar-

ily change the temperature from the programmed set points.
Perform the following steps to temporarily override the ther­mostat:

1. Open the thermostat front panel door.

2. Press the up or down button. This will cause the set point
to be displayed.

3. Press the up or down button again to increment or decre­ment the displayed set point. This will cause the tempo­rary hold icon to be displayed below the temperature and
replace the clock with the 0:15 minute override time.

4. The temporary hold remains active until a power cycle is
encountered, the override time has expired, off mode is
selected, or the user presses the hold button.

5. To change the override time displayed in the clock loca­tion, press the start time button. Each press of the start
time button increments the override time by 15 minutes
up to the maximum value set by the installer.

6. Once the temporary hold is cleared, the override will be
considered inactive and the set point will reflect the pro­gram schedule set point.

7. Close the thermostat door.

Holding Temperature Set Points — The user can

override the programmed temperature settings and hold the
temperature at a specific setting. To override the temperatures,
perform the following procedure:

1. Open the thermostat front panel door.

2. Press the hold button (see Fig. 4). This will hold the cur­rent comfort setting and the program schedule will be ig­nored as long as the hold remains active.

3. Pressing the hold button again will return the thermostat
to the current programming schedule.

4. Close the thermostat door.

3

Turning Heating and Cooling System Off —

cool

hold

fan
auto

OCC LIMITUNOCC

push and hold to set

set
schedule

days period start time

set

clock

d/h/m

mode

fan

done

hold

run

Fig. 4 — Holding Temperature Set Points

a33-9219

To use the thermostat to turn the heating and cooling system
off, perform the following procedure:

1. Open the thermostat front panel door.

2. Press the mode button until the display shows "off" in the
upper left corner.

3. Close the thermostat door.

Advanced Programming — The user can customize

two different features on the thermostat, the Fahrenheit or Cel­sius display and the backlighting of the thermostat.

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 procedure:

1. Open the thermostat front panel door.

2. Press and hold the OCC and LIMIT buttons simultane­ously for three seconds. The screen will display flashing
"U2" and the F or C setting.

3. Press the mode button to change the flashing “U2” to the
F or C setting.

4. Press the up or down button to select either F or C.

5. Press the fan or done button.

6. Close the thermostat door.

BACKLIGHTING — The thermostat can be set to have the
backlighting either Off or On. To change the backlighting se­lection, perform the following:

1. Open the thermostat front panel door.

2. Press and hold the OCC and LIMIT buttons simultane­ously for three seconds. The screen will display a flashing
"U2", press the up button to display the flashing "U3" and
the On or Off backlight setting.

3. Press the mode button to change the flashing “U3” to the
On (or Off).

4. Press the up or down button to select On or Off.

5. If Off is selected, the thermostat backlight will normally
be off. It will turn on with any button press and stay on for

10 seconds between button presses. After 10 seconds of
no button presses, the backlight turns off until another
button press occurs.

6. If On is selected, the thermostat backlight will normally
be on and dim in appearance. The backlight brightness
becomes brighter with any button press and remains
bright for 10 seconds. After 10 seconds of no button

presses, the backlight returns to a dimmer level until an­other button press occurs.

7. To exit the user configuration screen, press the fan or the
done button.

8. Close the thermostat door.

Using the Fan — The thermostat is factory configured so

that the fan runs continuously (Fan On mode) during the occu­pied or limit period. If the installer has configured the thermo­stat to allow operation in the Fan Auto mode, the fan will run
only when heating or cooling is required. To change the fan set­ting:

1. Open the thermostat front panel door.

2. Press the fan button on the left side. The fan on or fan
auto will appear in the lower left corner of the display.

3. Press the fan button again to change setting.

4. Close thermostat door.

Auto Changeover — The thermostat displays one of

five modes: heat, cool, Em heat, heat cool (auto mode) and off.
When the mode selection is in auto mode, the system is al­lowed to switch from heating to cooling or from cooling to
heating to maintain the temperature set points.

Unlocking the Keypad — The thermostat is locked

when the padlock symbol is shown on the thermostat display.
A locked thermostat will inhibit a user from making adjust­ments.

The method by which the thermostat is unlocked is config-

ured by the installer. Three unlocking options are available:

1. The user must simultaneously depress the up and down
buttons for 5 seconds.

2. If a set of dashes are displayed, then a four-digit pass code
must be entered by the user.

3. The user must simultaneously depress the up and down
buttons for 5 seconds, and then enter a four-digit pass
code.

Auxiliary Heat — This option is available for all of the

equipment types except cool only. When the auxiliary heat is
active "aux heat" will be displayed and the supplemental heat is
used to meet the demand in the space. The heater will turn on
automatically.

Using Emergency Heat — Emergency heat is used

when the heat system cannot keep up with demand. If the heat
pump compressor that works with auxiliary heat fails, or if the
heat pump is not working at all, the emergency heat can be
used. To set the thermostat to use emergency heat, perform the
following procedure:

1. Open the thermostat front panel door.

2. Press the mode button until the display shows Em Heat
in the upper left corner of the display.

3. Close the thermostat door.

Smart Recovery — The Smart Recovery feature transi-

tions the space from one temperature period (P1 - P4) to the
next so that the space temperature matches the temperature set
point at the start of each time period. This means, for example,
that if the occupied 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 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 effective.

Power Outage — If the building loses electricity, the

thermostat will not need to be reprogrammed. The settings are
retained in memory.

4

TROUBLESHOOTING

There are system error messages that may appear on the
thermostat screen. See text below for possible system error
messages and their meaning.

Space Temperature Sensor Failure — If the

space sensor reads less than -50 F or greater than 150 F for 60
consecutive seconds, the sensor is considered failed.

If the sensor has failed, the O/B, Y2, Y1 and W outputs turn
off and the space temperature display will show "- -". The fan
will continue to run if the user has set the fan selection to "fan
on."

If the space temperature is the average of both the local and
remote sensors and one of the sensors fails, the thermostat will
control the valid sensor only. The display will alternate every
10 seconds between "- -" for the invalid sensor and the reading
from the valid sensor.

E7 Error — If the thermostat is configured for continuous

fan and the fan button is pressed, an E7 error code will be dis­played indicating that the fan speed can not be adjusted.

Five-Minute Compressor Timeguard — This

timer prevents the compressor from starting unless it has been
off for 5 minutes. It can be defeated for one cycle by simultane­ously pressing the fan and up keys. The indication of a flash­ing heat or cool icon means that there is a demand in the space
but the equipment is being held off due to the timeguard timer.

Changing Batteries — The thermostat can be powered

by the HVAC equipment or by battery power. If there is no
lighting until a button is pressed, it is battery powered. When
the thermostat uses electricity, the batteries (if installed) take
over if the electricity goes out.

When powered by batteries, the thermostat's two AA batter­ies should last about one year. When the batteries have lost
about one-third of their power, a battery icon shows up on the
display in the upper right corner with two black bars. If two­thirds of battery power is lost, the battery icon will display one
black bar. As the batteries get weaker, the icon goes down to
one bar and then none. When the battery icon is less than full,
backlight function is lost. When the batteries are completely
dead, the thermostat will be unusable.

It is recommended that the batteries be replaced at the one
bar level with two AA alkaline batteries. Batteries are located
in the back of the thermostat, so the thermostat will have to be
removed from the wall. To replace the batteries, perform the
following procedure:

1. Locate the latch at the top of the thermostat. The latch is
located at the center of the top rim.

2. Press the latch down. This will disconnect the thermostat
from the top of the wall plate.

NOTE: The HVAC equipment will shut down.

3. Remove the thermostat from the wall bracket completely
by moving it slightly toward you and lifting it up and off
the lip on the lower edge of the wall bracket.

4. Set the thermostat face down on a flat surface. The batter­ies are located in the lower right corner.

5. Remove and recycle the old batteries.

6. Install new batteries.

7. Replace the thermostat on the wall bracket by lining up
the two slots on the bottom edge of the back of the ther­mostat with the two lips on the wall bracket.

8. The HVAC equipment will start back up based upon the
previous configuration settings.

5

Copyright 2011 Carrier Corporation

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53330022-01 Printed in U.S.A. Form 33CS-22SO Pg 8 8-11 Replaces: New