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Owner’s Manual

Part Number 33CS220-01

CONTENTS

Page

GENERAL ................................. 1

CONFIGURATION .......................... 1-4

Thermostat Display ........................ 1

Heat or Cool Indicator ..................... 1

Thermostat Front Panel Buttons ............ 2

Thermostat Programming Buttons .......... 2

Set Clock ................................. 2

Programming Thermostat Schedules ....... 3

OPERATION ............................... 4,5

Auto-Changeover .......................... 4

Two-Stage Operation ...................... 4

Clock Backup ............................. 4

Fan Operation ............................. 4

Emergency Heat ............................ 5

Electric Heat .............................. 5

Holiday Mode ............................. 5

IMPORTANT: Read entire instructions before program-

ming the thermostat.

GENERAL

Carrier’s 7-day, commercial, programmable thermostats

are wall-mounted, low-voltage thermostats which maintain

room temperature by controlling the operation of an HVAC

(heating, cooling and ventilation) system. Separate heating

and cooling set points and auto-changeover capability allow

occupied and unoccupied programming schedules for

energy savings.

All thermostats allow up to 3 occupied and one un-

occupied time/temperature setting to be programmed per

24-hour period. Each thermostat stores programs for

7 independent days. Batteries are not required. During power

interruption the internal NEVERLOST™ memory stores pro-

grams for an unlimited time.

IMPORTANT: The thermostat has a conﬁgurable security

level. If certain functions are not available (changing set

points, changing programming schedules), the thermostat

security level may be conﬁgured to exclude those func-

tions. Call the installer to reconﬁgure the security level.

CONFIGURATION

Thermostat Display —

The thermostat display is

located in the center of the thermostat. See Fig. 1. The fol-

lowing information can be displayed on the screen:

• mode (OFF, HEAT, COOL, AUTO, or PROGRAM ON)

• fan setting (FAN ON or blank)

• override indication

• room temperature

• desired temperature

• service ﬁlter indicator

• time of day

• day of the week

• schedule period (Occupied 1, 2, or 3; or Unoccupied)

• setup indicator (programming mode)

• lock indicator

• start/stop indicator (schedule period program mode)

Heat or Cool Indicator — A Heat or Cool indicator

is located on the bottom left cover of the thermostat. See

Fig. 2. The light will be red if the thermostat is in Heating

mode. The light will be green if the thermostat is in Cooling

mode.

Fig. 1 — Thermostat Display

33CS

Commercial

Programmable Thermostat

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

Book 1 4

Tab 11a 13a

PC 111 Catalog No. 533-333 Printed in U.S.A. Form 33CS-7SO Pg 1 1-98 Replaces: New

1 2 3 4 5 6 7 8

Sommario

Pagina 1 - Owner’s Manual

Owner’s ManualPart Number 33CS220-01CONTENTSPageGENERAL ... 1CONFIGURATION ... 1-4Thermostat Disp

Pagina 2

Thermostat Front Panel Buttons — The thermo-stat has buttons on the front cover which are used to raise orlower the desired set point and override the

Pagina 3

correct time is shown, press the Mode/Next button to modifythe day of the week. The current day will blink on and off.Press the UP ARROW and DOWN ARRO

Pagina 4 - OPERATION

8. The Stop Time for Occupied 1 will be displayed. Usethe UP ARROW and DOWN ARROW buttons to raiseor lower the time until the desired Stop Time is sho

Pagina 5

Emergency Heat — Emergency heat is available for heatpump applications. To turn on emergency heat, press and holdthe Fan button. While holding the Fan

Pagina 6

Pagina 7

Pagina 8 - Tab 11a 13a