Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53330024-01
Printed in U.S.A.
Form 33CS-24SO
Pg 1
8-11
Replaces: New
Owner’s Manual
Part Number 33CSCPACHP-FC
SAFETY CONSIDERATIONS
Read and follow manufacturer instructions carefully. Fol-
low 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 sym-
bol
. When the safety alert symbol is present on equipment
or in the instruction manual, be alert to the potential for person-
al 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 haz-
ard 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 fan coil with three-
speed fan operation thermostats are wall-mounted, low-voltage
thermostats which maintain room temperature by controlling
the operation of a heating and/or air conditioning system. This
fan coil model thermostat is capable of supporting fan coil
heat/cool, or heat only and cool only systems. A variety of fea-
tures 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.
OPERATION
Thermostat Button Identification —
The follow-
ing buttons are located on the thermostat display. See Fig. 1 for
button locations.
• FAN (1) — Selects whether the fan operates at low
speed (F1), medium speed (F2), high speed (F3), or auto
(only when needed for heating and cooling when in
unoccupied mode)
• HOLD/RUN (2) — Holds the currently selected temper-
ature or runs the scheduled program
• MODE (3) — Selects whether thermostat is set for heat-
ing, 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 program-
ming features
• 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, dis-
playing the programmed time periods
• DAYS (13) — Activates the programming menu, dis-
playing three options - all days, weekdays and weekends
Thermostat On-Screen Indicators —
The follow-
ing on-screen indicators can be displayed on the thermostat dis-
play. 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 (not used with this thermostat) (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)
OCC
LIMIT
UNOCC
push and hold to set
set
schedule
days
period start time
set
clock
d/h/m
mode
fan
done
off
Em
heat
fan
auto
fan
on
aux
heat
on
cool
on:
°
F
°
C
temporary
hold
all days
weekdays
weekend
actual temp
start
at
6
5
4
3
2
1
7
8
9
10
11
12
1
3
hold
run
Fig. 1 — Thermostat Button Identification
(Door Open)
a33-9220
Comfort™ Pro
Programmable Fan Coil
Commercial Thermostat
