Carrier 33CS420-01 Owner's Manual

Carrier 33CS420-01 Owner's Manual

7-day programmable digital thermostat
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OWNER'S
OWNER'S
MANUAL
MANUAL
7-DAY
7-DAY
PROGRAMMABLE
PROGRAMMABLE
&
HEAT
HEAT
COOL
PUMP
3 Configurable Outputs
3 Configurable Outputs
Control up to 3 Heat &
Control up to 3 Heat &
2 Cool Stages
2 Cool Stages
Adjustable 2nd & 3rd Stage
Timers & Deadbands
Backlit Display & Button
Legends
Aux Heat Indicator
Set Point Limiting
Outdoor Sensor Ready with
High/Low Readouts for the Day
OPTIONAL
OPTIONAL
Accepts the
Accepts the
Use with most Air Conditioning & Heating Systems including: 1 or 2 Stage
Electric Cooling & 3 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat.
Carrier Corporation 04/06
COMMERCIAL
COMMERCIAL
THERMOSTAT
THERMOSTAT
P/N P/N 33CS420-01
33CS420-01
D
D
IGITAL
IGITAL
T
T
HERMOSTAT
HERMOSTAT
74
I2:00
Pm
Su
C
OOL
AUTO
72
H
EAT
Accepts EZ Programmer
Accepts Optional Humidity Module:
Controls Humidification,
Dehumidification and Reheat
Accepts Optional IR Remote Control
HUMIDITY MODULE
HUMIDITY MODULE

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Summary of Contents for Carrier 33CS420-01

  • Page 1 High/Low Readouts for the Day OPTIONAL OPTIONAL Accepts the Accepts the HUMIDITY MODULE HUMIDITY MODULE Use with most Air Conditioning & Heating Systems including: 1 or 2 Stage Electric Cooling & 3 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat. Carrier Corporation 04/06...
  • Page 2 Carrier CAUTION Follow the Installation Instructions before proceeding. Set the thermostat mode to “OFF” prior to changing settings in setup or restoring Factory Defaults. CAUTION NEVER PUT MORE THAN ONE JUMPER ON THE SAME MISC JUMPER BLOCK! THIS MAY DAMAGE YOUR THERMOSTAT.
  • Page 3 How to Use This Manual How to Use This Manual Carrier The Table of Contents divides the thermostat features into sections making it easier to quickly find information. The first page of each section contains a more detailed list of the contents withing that section, such as the example page shown below.
  • Page 4 Glossary of Terms Glossary of Terms Carrier Auto-Changeover: A mode in which the thermostat will turn on the heating or cooling based on room temperature demand. Configurable Output Jumper: Using jumpers on the thermostat you can configure the MISC1, MISC2, and MISC3 terminals to control humidification, dehumidification, 2nd stage cooling, and 3rd stage heating.
  • Page 6: Table Of Contents

    Table of Contents Table of Contents Carrier Quick Start Getting to Know Your Thermostat Setting Clock and Day Basic Operation Viewing Temperature and Humidity Sensors Programming the Daily Schedule Programming the Fan Operation Thermostat Display Options Humidification Dehumidification Viewing Equipment...
  • Page 7: Quick Start

    SECTION 1 Quick Start Quick Start Carrier Section 1 Contents: Setting the Clock and Day...1.2 Selecting the Heat or Cool Mode..........1.3 Selecting Your Desired Temperature........1.4 Using the Fan Button....1.4 Note: Following the instructions in this section will allow you to operate your thermostat using the factory default settings.
  • Page 8 Carrier MODE HUMIDITY SET CLOCK During Setup & Programming: Press the MODE and HUMIDITY buttons Pressing the UP or DOWN at the same time buttons will modify the flashing selection. Setting the Clock Setting the Clock I2:00 Setup To adjust the...
  • Page 9 Carrier Selecting the Heat or Cool Mode Selecting the Heat or Cool Mode Select Mode by Pressing the MODE Button I2:00 Heating Only The HEAT setting indicates the temperature the room has to reach before the furnace will Press turn on to heat the room.
  • Page 10 Carrier Selecting Your Desired Temperature Selecting Your Desired Temperature (adjusting the setpoints) (adjusting the setpoints) AUTO OR PROGRAM MODE Pressing the UP or DOWN buttons in Auto or Program mode will adjust both the heat and cool set temperatures simultaneously.
  • Page 11 SECTION 2 Getting to Know Your Thermostat Getting to Know Your Thermostat Carrier Section 2 Contents: Front Panel Buttons.....2.2 Display Features......2.3 Page 2.1...
  • Page 12 Carrier Front Panel Front Panel Warmer Button Backlit LCD Display (glows red) sometimes referred to as the UP button Carrier I2:00 AUTO Cooler Button sometimes refer- (glows blue) red to as the DOWN button Override Heat or Cool Demand Indicator...
  • Page 13 Carrier Display Features Display Features I8:88 Program On Setup StartStop SuMoTuWeThFrSa DeHumidify Service Filter UV Light Outside AUTO OFFON Unoccupied Override FanOn Mode Indicators - Section 4 Selects the operational mode of the equipment. HEAT - Indicates the heating mode.
  • Page 14 Carrier Display Features Display Features I8:88 Program On Setup StartStop SuMoTuWeThFrSa DeHumidify Service Filter UV Light Outside AUTO OFFON Unoccupied Override FanOn Occupied & Unoccupied icons - Section 6 Indicates the program number: Occupied 1,2,3,or Unoccupied. Override icon - Section 6 Indicates the program is currently being overridden for up to 4 hours.
  • Page 15 Carrier Display Features Display Features UV Light icon - Section 11/15 Appears when the UV bulb should be serviced under normal conditions. Adjustable from 0 - 1950 days of operation. AuxHeat icon - Section 12 Indicates 2nd stage electric strip heat is being used when the thermostat is programmed for Heat Pump operation.
  • Page 16: Setting The Clock

    SECTION 3 Setting the Clock and Day Setting the Clock and Day Carrier Section 3 Contents: Setting the Clock......3.2 Setting the Day......3.2 Note: During setup & programming pressing the UP or DOWN buttons will modify the flashing selection. Page 3.1...
  • Page 17 Carrier MODE HUMIDITY SET CLOCK During Setup & Programming: Press the MODE and Pressing the UP or DOWN HUMIDITY buttons at the same time buttons will modify the flashing selection. Setting the Clock Setting the Clock I2:00 Setup To adjust the...
  • Page 18: Basic Operation

    SECTION 4 Basic Operation Basic Operation Carrier Section 4 Contents: Programming for Auto or Program Operation....4.2 Selecting the Proper Operating Mode......4.3 Selecting Your Desired Temperature.......4.8 Note: During setup & programming pressing the UP or DOWN buttons will modify the flashing selection.
  • Page 19 Carrier Programmable or Non-Programmable Programmable or Non-Programmable Thermostat Thermostat When the very simplest operation is desired, this thermostat may be configured to be non-programmable, with or without Auto-Changeover. Follow the step below. If ‘NO’ is selected, the thermostat will lockout the Program On screen;...
  • Page 20 Carrier Manual or Auto-Changeover Manual or Auto-Changeover Thermostat Thermostat When the very simplest operation is desired, this thermostat may be configured to be a manual heat and cool thermostat, with or without time period programmability. Follow the step below. The thermostat may be programmed to function as a Heat Only or Cool Only thermostat by selecting ‘NO’...
  • Page 21 Carrier Operating Mode when the Thermostat Operating Mode when the Thermostat is Configured to be: is Configured to be: NON-PROGRAMMABLE WITH MANUAL-CHANGEOVER - If the thermostat is configured to be a non-programmable thermostat with Manual-Changeover, the following screens will be available by pressing the MODE button.
  • Page 22 Carrier Operating Mode when the Thermostat Operating Mode when the Thermostat is Configured to be: is Configured to be: NON-PROGRAMMABLE WITH AUTO-CHANGEOVER - If the thermostat is configured to be a non-programmable thermostat with Auto-Changeover, the following screens will be available by...
  • Page 23 Carrier Operating Mode when the Thermostat Operating Mode when the Thermostat is Configured to be: is Configured to be: PROGRAMMABLE WITH MANUAL-CHANGEOVER - If the thermostat is configured to be a programmable thermostat with Manual-Changeover, the following screens will be available by pressing the MODE button.
  • Page 24 Carrier Operating Mode when the Thermostat Operating Mode when the Thermostat is Configured to be: is Configured to be: PROGRAMMABLE WITH AUTO-CHANGEOVER - If the thermostat is configured to be a programmable thermostat with Auto-Changeover, the following screens will be available by pressing the MODE button.
  • Page 25 Carrier Selecting Your Desired Temperature Selecting Your Desired Temperature (adjusting setpoints) (adjusting setpoints) AUTO OR PROGRAM MODE Pressing the UP or DOWN buttons in Auto or Program modes will adjust both the heat and cool set temperatures simultaneously. For more information on this see page 13.2.
  • Page 26 SECTION 5 Viewing the Temperature and Humidity Sensors Viewing the Temperature and Humidity Sensors Carrier Section 5 Contents: Viewing the Outside Temperature......5.2 Viewing the Indoor Humidity........5.3 Page 5.1...
  • Page 27 Carrier Viewing the Outside Temperature Viewing the Outside Temperature Requires an outside sensor (optional accessory) to be installed. To read the temperature from the outside sensor, press the PROGRAM and HOLIDAY buttons. The display will then show the current outside temperature along with the highest and lowest temperatures for the day.
  • Page 28 Carrier Viewing the Indoor Humidity Viewing the Indoor Humidity Requires the Humidity Module (optional accessory) to be installed. To display the current humidity at the thermostat, press the HUMIDITY button of the thermostat. The display will then show the current indoor humidity along with the humidification setpoint (Section 9).
  • Page 29: Programming The Daily Schedule

    SECTION 6 Programming the Daily Schedule Programming the Daily Schedule Carrier Section 6 Contents: Programming a Daily Schedule........6.2 Overriding the Daily Schedule........6.6 Page 6.1...
  • Page 30 Carrier Programming a Daily Schedule Programming a Daily Schedule Press Press the PROGRAM button to enter time period programming. PROGRAM Use the Programming Worksheet on the back cover to help with this section. Select the maximum # of occupied periods to be used on any one day.
  • Page 31 Carrier Adjust the heating set- point for Unoccupied periods. Unoccupied (OF, 35 - 99 ) Press MODE Select the day for Occupied 1. occupied (Mo - Su) Press MODE 7:00 Start Adjust the start time for Occupied 1. occupied Press...
  • Page 32 Carrier The copy command becomes available after the maximum # of occupied periods are programmed in a day. This example uses only one occupied period. Select Yes to copy the previous day’s program to this day. If No is selected:...
  • Page 33 Carrier Select Occupied 1 to run on this day (On), or not to run on this day (Off). occupied Select Yes to copy the previous day’s program to this day. If No is selected: If Yes is selected: Selecting Yes, then pressing mode will copy the Press previous day’s program.
  • Page 34 Carrier Overriding the Daily Schedule Overriding the Daily Schedule The OVERRIDE button may be used to interrupt the normal time schedule programming of the thermostat. Override may only be used when the thermostat is running the time schedule, in Program On mode.
  • Page 35: Programming The Fan Operation

    SECTION 7 Programming the Fan Operation Programming the Fan Operation Carrier Section 7 Contents: Using the Fan Button....7.2 Smart Fan Operation....7.2 Setting the Fan-Off Time Delay..........7.3 Page 7.1...
  • Page 36 Carrier Using the Fan Button Using the Fan Button When the fan is set for automatic operation it will energize any time there is a call for heating or cooling, otherwise the fan will remain off. Pressing the FAN button will energize the fan and display the FanOn icon on the thermostat display.
  • Page 37 Carrier Setting the Fan-Off Time Delay Setting the Fan-Off Time Delay To increase cooling efficiency of your unit, the thermostat may be programmed to continue running the fan after a call for cooling has been satisfied. This delay may be set for 30, 60, or 90 seconds. If the Fan Off Delay is set for zero seconds, the fan will not energize after a call for cooling has been satisfied.
  • Page 38: Thermostat Display Options

    SECTION 8 Thermostat Display Options Thermostat Display Options Carrier Section 8 Contents: Turning On/Off the Backlight........8.2 Programming the Thermostat to Display Temperature in Fahrenheit or Celsius....8.2 Locking/Unlocking the Keypad........8.3 Programming a Security Level..........8.4 Page 8.1...
  • Page 39 Carrier Turning On/Off the Backlight Turning On/Off the Backlight Press the MODE button. While holding MODE Note: Press the MODE the MODE, press the PROGRAM button momentarily button to enter Setup screens. PROGRAM to move through the setup screens. Press...
  • Page 40: Locking/Unlocking The Keypad

    Carrier Locking/Unlocking the Keypad Locking/Unlocking the Keypad To prevent unauthorized use of the thermostat, the front panel buttons may be disabled. To disable, or ‘lock’ the keypad, press and hold the MODE button. While holding the MODE button, press the UP and DOWN buttons together. The icon will appear on the display, then release the buttons.
  • Page 41: Programming A Security Level

    Carrier Programming a Security Level Programming a Security Level When a security level has been programmed, the thermostat will allow limited adjustment to the setpoints (steps #7 and 8). In security levels 2 and 3, the thermostat is forced into the Program On mode.
  • Page 42: Humidification

    SECTION 9 Humidification Humidification Carrier Section 9 Contents: Installing the Humidity Module........9.2 Setting a Thermostat Jumper for Humidity Operation....9.3 Adjusting the Humidification Setpoint........9.4 NOTE: The humidification functions described in this section will only be available if a Humidity Module has been properly installed.
  • Page 43: Dehumidification

    Carrier Installing the Humidity Module Installing the Humidity Module To install the Humidity Module the thermostat must be detached from the back plate. Plug the Humidity Module into the Humidity Module connector as shown in Figure 2 below. Follow the detailed instructions included with the Humidity Module accessory.
  • Page 44 Carrier Setting a Thermostat Jumper for Setting a Thermostat Jumper for Humidity Operation Humidity Operation To control a MISC outputs for humidification, place the MISC1, MISC2, or MISC3 jumper on the terminal labeled HUM (see diagram below). This will supply 24VAC to the selected MISC terminal based on the humidification programming in the following pages.
  • Page 45 Carrier Adjusting the Humidification Setpoint Adjusting the Humidification Setpoint If your HVAC unit is equipped with a humidification system and the Humidity Module has been installed, the thermostat will provide power to the appropriate terminal on the backplate of the thermostat when the humidity in the building falls below the setpoint you have chosen.
  • Page 46 SECTION 10 Dehumidification Dehumidification Carrier Section 10 Contents: Configuring a Thermostat Output Jumper for Dehumidification Operation........10.2 Adjusting the Dehumidification Setpoint........10.3 Using Your Air Conditioner to Dehumidify......10.4 Using the DEHUM Terminal........10.5 NOTE: The dehumidification functions described in this section will only be available if a Humidity Module has been properly installed.
  • Page 47 Carrier Setting a Thermostat Jumper for Setting a Thermostat Jumper for Dehumidification Operation Dehumidification Operation To control a MISC outputs dehumidification, install the Humidity Module and place the Humidity Jumper on HUM (see page 9.2). Then place the MISC1, MISC2, or MISC3 jumper on the terminal labeled DEHUM (see diagram below).
  • Page 48 Carrier Adjusting the Dehumidification Setpoint Adjusting the Dehumidification Setpoint Dehum Terminal: If a MISC terminal is selected for DEHUM operation (see page 10.2), then the thermostat will provide power to this terminal when the humidity in the building is above the setpoint you have chosen.
  • Page 49 Carrier Using Your Air Conditioner to Dehumidify Using Your Air Conditioner to Dehumidify If Cool to Dehumidify is on and the Humidity Module is installed, the thermostat has the ability to initiate a cooling cycle for advanced dehumidification operation. When the thermostat detects the humidity...
  • Page 50 Carrier Using the Dehum Terminal Using the Dehum Terminal If you configure a MISC output jumper for DEHUM, it may be programmed to operate in one of two ways: 1) Normally Closed (NC): The thermostat will de-energize the DEHUM terminal to allow the fan to run in low speed when there is a call for 1st stage cooling and the room humidity is greater than the dehumidification setpoint.
  • Page 51: Viewing Equipment Run-Times

    SECTION 11 Viewing Equipment Run-Times Viewing Equipment Run-Times Carrier Section 11 Contents: Viewing the Override Run-Time.........11.2 Viewing the Humidifier Run-Time........ 11.3 Viewing the UV Light Run-Time.........11.4 Page 11.1...
  • Page 52 Carrier Viewing the Override Operation Run-Time Viewing the Override Operation Run-Time This display will track the number of hours that your thermostat has been operating in the Override mode (see page 6.6). Press the FAN button to reset the counter.
  • Page 53 Carrier Viewing the Humidification Run-Time Viewing the Humidification Run-Time After your humidification system has been operating for the number of days set in step #13 below, the Service Humidify icon will appear. This counter keeps track of the number of days since the Service Humidify icon was reset.
  • Page 54 Carrier Viewing the UV Light Run-Time Viewing the UV Light Run-Time After the UV light has been operating for the number of days set in step #14 below, the Service UV Light icon will appear. This counter keeps track of the number of days since the UV light icon was last reset.
  • Page 55: Electric Heat And Heat Pump Operation

    SECTION 12 Electric Heat and Heat Pump Operation Electric Heat and Heat Pump Operation Carrier Section 12 Contents: Viewing the Heat Pump and Reversing Valve Jumper Setting........12.2 Viewing the Electric Heat Jumper Setting.......12.3 Using Emergency Heat....12.4 Page 12.1...
  • Page 56 Carrier Viewing the Heat Pump and Viewing the Heat Pump and Reversing Valve Jumper Settings Reversing Valve Jumper Settings Steps 15 and 16 are ‘Read Only’ and may only be set with the jumpers on the circuit board of the thermostat.
  • Page 57 Carrier Viewing the Electric Heat Jumper Setting Viewing the Electric Heat Jumper Setting Placing the jumper on ELEC will cause the thermostat to turn on the fan immediately any time there is a heat demand. Since most gas furnaces control the fan, this feature should be off unless it is necessary for the thermostat to energize the fan with first stage heat.
  • Page 58 Carrier Using Emergency Heat Using Emergency Heat ENTER EMERGENCY HEAT: Only available if you have a Heat Pump installed. To initiate the Emergency Heat feature, press the FAN button. While holding the FAN button press UP button. The Cool setpoint display will read ‘EH’ (emergency heat).
  • Page 59: Timers And Deadbands

    SECTION 13 Timers and Deadbands Timers and Deadbands Carrier Section 13 Contents: Adjusting the Heat/Cool Differential......13.2 Adjusting the Cycles Per Hour........13.3 Adjusting the Deadband..13.4 Adjusting the Minutes of Run-Time Before the Next Stage.......13.6 Selecting 2nd Stage Turn Off Temperature.....13.7 Page 13.1...
  • Page 60 Carrier Adjusting the Heat/Cool Differential Adjusting the Heat/Cool Differential The Heat and Cool setpoints will not be allowed to come any closer to each other than the value in this step. This minimum difference is enforced during Auto-Changeover operation. Press the MODE button. While holding...
  • Page 61 Carrier Adjusting the Cycles Per Hour Adjusting the Cycles Per Hour The Cycles Per Hour setting may limit the number of times per hour your HVAC unit may energize. For example, at a setting of 6 cycles per hour the HVAC unit will only be allowed to energize once every 10 minutes.
  • Page 62 Carrier Adjusting the Deadband Adjusting the Deadband MULTI-STAGE OPERATION - Controls up to three Heat and two Cool stages. The 2nd Stage of heat or cool is turned on when: (A) The 1st Stage has been on for the time required (step #23, page 13.6).
  • Page 63 Carrier Adjusting the Deadband Adjusting the Deadband For more detailed information, please see the explanation on the previous page. Press the MODE button. While holding MODE Note: Press the MODE the MODE, press the PROGRAM button momentarily button to enter Setup screens.
  • Page 64 Carrier Adjusting the Minutes of Run-Time Adjusting the Minutes of Run-Time Before the Next Stage Before the Next Stage For more detailed information, please see the explanation on page 13.4. Press the MODE button. While holding MODE Note: Press the...
  • Page 65 Carrier Selecting Selecting nd Stage Turn nd Stage Turn Off Temperature Off Temperature If ON is selected, the second stage of cooling or heating will remain energized until the thermostat reaches the setpoint on the thermostat display. If OFF is selected, the second stage of cooling or heating will turn off...
  • Page 66: Energy Save Operation

    SECTION 14 Energy Save Operation Energy Save Operation Carrier How to Use the Energy Save Feature How to Use the Energy Save Feature If the thermostat is configured to be programmable (Section 4), and Energy Save has been selected in step #26 (below), the room will attempt to reach the selected comfort temperature at the exact time programmed into the thermostat.
  • Page 67 SECTION 15 Programming Run-Time Alerts Programming Run-Time Alerts Carrier Section 15 Contents: Setting and Resetting the Service Filter (Fan Run-Time) Alert........15.2 Setting and Resetting the UV Light Run-Time Alert.....15.3 Setting and Resetting the Humidify Run-Time Alert..15.4 Page 15.1...
  • Page 68 Carrier How to Set and Reset the Service Filter How to Set and Reset the Service Filter (Fan Run-Time) Alert (Fan Run-Time) Alert This counter keeps track of the number of hours of fan run-time whether the fan is energized in the Heating or Cooling modes, or in stand alone fan operation.
  • Page 69 Carrier How to Set and Reset the UV Light How to Set and Reset the UV Light Run-Time Alert Run-Time Alert This counter keeps track of the number of days since the UV Light counter has been reset. The UV Light icon will appear after the number of days has been achieved, as shown in step #29 (below).
  • Page 70 Carrier How to Set and Reset the Humidifier How to Set and Reset the Humidifier Run-Time Alert Run-Time Alert This counter keeps track of the number of days since the Service Humidify icon was last reset; this icon will appear after the number of days set in step #30 (below) has elapsed.
  • Page 71 SECTION 16 Programming Holiday Mode Programming Holiday Mode Carrier When the thermostat is programmed for a Holiday mode, it will take effect at 12:00 am of the next day. The thermostat must be in the Program On mode for Holiday mode to take effect.
  • Page 72 Carrier Programming Holiday Mode Programming Holiday Mode (continued) (continued) HOLIDAY DISPLAY - When the thermostat is placed into the Holiday mode, the thermostat will display the screen shown below. To return the thermostat to normal operation from Holiday mode, press the HOLIDAY button and adjust the number of days in step #1 to zero (see previous page).
  • Page 73: Configuring The Misc Outputs

    SECTION 17 Configuring the MISC Outputs Configuring the MISC Outputs Carrier Section 17 Contents: Configuring the Jumpers..17.2 Explanation of Jumper Settings........17.3 Page 17.1...
  • Page 74 Carrier Configuring the Jumpers Configuring the Jumpers For additional flexibility, your thermostat has three configurable outputs. These outputs are designed to have different functions depending on how the jumpers are set (below). Each output, labeled MISC1, MISC2, and MISC3 may be set for one of the four choices available.
  • Page 75 Carrier Explanation of Jumper Settings Explanation of Jumper Settings W3 JUMPER SETTING If the jumper for MISC1, MISC2, or MISC3 is set to W3, the corresponding MISC screw terminal on the backplate will control a third stage of heat. W3 MULTI-STAGE OPERATION EXPLAINED - SECTION 13.4...
  • Page 76 Carrier Explanation of Jumper Settings Explanation of Jumper Settings (continued) (continued) DEHUM JUMPER SETTING If the jumper for MISC1, MISC2, or MISC3 is set to DEHUM, the corresponding MISC screw terminal on the backplate will be connected to the dehumidification terminal of a furnace board.
  • Page 77 Carrier Explanation of Jumper Settings Explanation of Jumper Settings (continued) (continued) Y2 JUMPER SETTING If the jumper for MISC1 is set to Y2 the MISC1 screw terminal on the backplate will control a second stage of cooling. Y2 OPERATION - SECTION 13.4 Control up to two Cool stages.
  • Page 78: Factory Defaults, Calibration, And Sensors

    SECTION 18 Factory Defaults, Calibration, and Sensors Factory Defaults, Calibration, and Sensors Carrier Section 18 Contents: Resetting the Thermostat to the Factory Default Settings..18.2 Calibrating the Temperature and Humidity Sensors...18.3 Page 18.1...
  • Page 79 Carrier Resetting the Thermostat to the Resetting the Thermostat to the Factory Default Settings Factory Default Settings (for default values see page 20.1) (for default values see page 20.1) If, for any reason, you desire to return all the stored settings back to the factory default settings, follow the instructions below.
  • Page 80 Carrier Calibrating the Temperature and Humidity Sensors Calibrating the Temperature and Humidity Sensors Under normal circumstances it will not be necessary to adjust the calibration of the temperature and humidity sensors. If calibration is required, please contact a trained HVAC technician to correctly perform the following procedure.
  • Page 81: Accessories

    SECTION 19 Accessories Accessories Carrier ACCESSORY PORT - The RJ11 Jack is used to connect the 33CS420-01 to the IR Receiver P/N 33CSIRRCVR-01 for wireless communication or the EZ Programmer P/N 33CSPGMR-01 for easy downloading or uploading of thermostat information.
  • Page 82 Carrier...
  • Page 83 SECTION 21 Index Index Carrier 8.3, 18.2 temperature, outside, 2.2, 5.2 13.7, 20.1 Override, 2.2, 6.6 Y2 operation, 17.5 up, 1.2, 2.2, 8.3, deadband, see 12.4 Deadband Alerts see Run-Time droop, see Deadband electric/heat pump, Auto adjust temperature, 12.2 icon, 2.3 1.4, 4.8...
  • Page 84 SECTION 21 Index Index Index Index Carrier 3rd stage, 13.4-13.5, jumper, 12.2 13.7, 20.1 Green Indicator, 2.2 Dehumidify cool to, 10.3, 20.1 DEHUM jumper, F, 8.2, 20.1 10.5 Factory Defaults icon, 2.4 caution, ii setpoint, 10.2 settings, 18.2 Heat Delay resetting, 18.2...
  • Page 85 SECTION 21 Index Index Carrier 12.2 icon, 2.3 indicator, 2.2 Mode, 1.3 program, see Program Internet-based LCD, 2.2 run-time, see Run- Operation, Locked Indication Time see Programmable see Keypad Lockout setpoint, 1.3-1.4, Output 6.2, 6.5 IR Receiver, 19.1 icon, 2.4, 5.2...
  • Page 86 SECTION 21 Index Index Index Index Carrier mode, 1.3, 4.6-4.7 on at all times, 8.4 override, 6.6 On icon, 2.3 programming, 6.2- override, see Override setpoint limits, 8.4 programming tips, 6.5 Non-Programmable Thermostat, 4.2, worksheet, back worksheet, back page page Programmable 4.4-4.5...
  • Page 87 SECTION 21 Index Index Carrier 4.2-4.3 setpoint, 6.2-6.3 Smart Fan, 7.2 UV Light Smart Recovery, see icon, 2.4 Energy Save resetting, see Reset Schedule, Daily, run-time, see Run- see Program Time setting, see Run-Time 2nd stage turn off temperature, 13.7, 20.1...
  • Page 88 Section 22 Warranty Warranty Carrier Five-Year Warranty - This Product is warranted to be free from defects in material and workmanship. If it appears within five years from the date of original installation, whether or not actual use begins on that date, that the product does not meet this warranty, a new or remanufactured part, at the manufacturer’s sole option to replace any defective part, will be...
  • Page 89 Programming Worksheet see Section 6 DAY PERIOD START TIME COOL HEAT Unoccupied Occupied 1 Occupied 2 Occupied 3 Unoccupied Copy Mon Occupied 1 Occupied 2 Occupied 3 Unoccupied Copy Tue Occupied 1 Occupied 2 Occupied 3 Unoccupied Copy Wed Occupied 1 Occupied 2 Occupied 3 Unoccupied...

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