Carrier 33CS450-01 Owner's Manual
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Carrier 33CS450-01 Owner's Manual

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Gehrig
July 16, 2025

Can I force the thermostat to factory settings?

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Summary of Contents for Carrier 33CS450-01

  • Page 2 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 M]SC JUMPER BLOCK! THIS MAY DAMAGE YOUR THERMOSTAT.
  • Page 3 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 within that section, such as the example page shown below.
  • Page 4 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 control humidification, dehumidification, 2nd stage cooling, stage heating, and a programmable output.
  • Page 5 E,'!
  • Page 6 Section 1 Contents: = Setting the Clock and Day... 1.2 a Selecting the Heat or Cool Mode ..........m Selecting Your Desired Temperature ........ m Using the Fan Button ....Note: Following the instructions in this section will allow you to operate your thermostat using the factory default settings.
  • Page 7 During Setup & Programming: Press the MODE Pressing theUP orDOWN @® ._M,D,.y0ottoos at the same time buttons willmodify t heflashing Setting the Cbck saUDon. To adjust le, oo_,o Clock or Day use Setting the Day '"..Buttons. Press the MODE and HUMIDITY buttons at the same time to...
  • Page 8 Sele_'ng the Heat or Cool Mode Select Mode by Pressing the MODE Button Heating Only I_ ; u u _ _ HEATse#ing indicates/he temperature the room has to HEAT reach before the furnace will P..turn On to heat the room, Cooling Only I,'i _;...
  • Page 9 Selecting Your Desired Temperature (adiustidg the setpdnts) 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. Adjust the desired _7,C, ] set temperature with the c°°L / HEAT ui-q...
  • Page 10 Section 2 Contents: = Front Panel Buttons ..... m Display Features ......Page 2. I...
  • Page 11 Front Panel Backtit Display Warmer Button gIo red/ Cooler Button (glows blue) led to as the ometimes refer 1 DOWN button Heat or Cool Demand indicator Override Red = Heat, Green = Cool Button MODE HUMiDiTY PROGRAM HOLIDAY L..J L..
  • Page 12 Dis]£a 7 Features Ii'-O _t_H="0Am Program SetL I_:_i-_ StartStop SuMoTuWeThFrSa DeHumidif' Service Filter Pan UV Light AUTO OFFON Unoccupie( Override FanOn Mode indicators =Section 4 Selects the operational mode of the equipment. HEAT- indicates the heating mode. COOL - indicates the air conditioning mode, AUTO - indicates...
  • Page 13 Feat.res AUTO OFFON Unoccupie( FanOn Override Unoccupied Occupied & icons - Section 6 Indicates the program number: Occupied 1,2,3,or Unoccupied. Override icon Section Indicates the program is currently being overridden for up to 4 hours. Setup icon Sections 7_20 Indicates the thermostat is in the setup mode.
  • Page 14 splay Features I¢'O _¢Z"aC'OAr_ Program SetL I i==-i l Ci iZi Pn_StartStop SuMoTuWeThFrSa DeHumidif' Service Filter ight OFFON Unoccupie( Override FanOn Light icon Section 11/19 Appears when the UV bulb should be serviced under normal conditions. Adjustable from 0 - 1950 days of operation. Remote icon - Page 22.4 indicates...
  • Page 15 Section 3 Contents: Setting the Clock ......= Setting the Day......Note: During setup & programming pressing the UP or DOWN buttons will modify the flashing selection. Page 3. I...
  • Page 16 Press the MODE and During Setup & Programming: at the same time buttons w ill modifythe flashing eeleeDon. HUMlDITYbuttons PressingtheUPorDOWN Se_ing the Clo_ l2:OO..Clock or Day use To adjust Press Se_ing the Day .._ Buttons. Press the MODE and HUMIDITY buttons at the...
  • Page 17 Section 4 Contents: a Programming for Auto Program Operation ....4. 2 = Selecting the Proper Opera ting Mode ......4. 3 = Selecting Your Desired Tempera ture ....... Note: During setup & programming pressing the UP or DOWN buttons will modify the flashing selection Page 4.
  • Page 18 Programmableor Non-Pro, ammable 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; only the ©ff, Heat, Cool, and Auto screens may be accessed by pressing the MODE button.
  • Page 19 Manual or Auto-Changeover 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' in the setup screen below.
  • Page 20 Operating Made when the Thermostat is Configured to be: NON-PRO®FLaMMABLE WITH MANUAL-CHANGEOVER- If the thermostat is configured to be a non-programmable thermostat with Manual-Changeover, the following screens witl be available by pressing the MODE button. Select the Mode by Pressing the MODE Button Heating...
  • Page 21 Operatin_ Made when the Thermostat is Canfqdured 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 pressing the MODE button Select the Mode by Pressing the MODE Button Heating...
  • Page 22 OFdoeratin_ M ode when the Thermostat nS,_d to_e: PROGRAMMABLE WITH MANUAL-CHANGEOVER - If the thermostat Select the Mode by Pressing the MODE Button Heating Only ;__ ___,_ temperature the room has to reach before the furnace will turn on to heat the room, Cooling Only...
  • Page 23 O_oerating Mode when the Thermostat tol e: PROGRAMMABLE WITH AUTO-CHANGEOVER - If the thermostat configured to be a programmable thermostat with Auto-Changeover, the following screens wilt be avaiiabte by pressing the MODE button, Select the Mode by Pressing the MODE Button Hea.ng Only :_:f .
  • Page 24 Selecting Your Desired 7_mperature (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. Adjust the desired set temperature with the I#ml' I .E,T...
  • Page 25 Section 5 Contents" = Viewing Outside Temperature ......5. 2 a Viewing the Indoor Humidity........5. 3 P_e5.1...
  • Page 26 Viewing the Outside _mperature Requires an outside sensor (optional accessory) to be installed (see page 15.2 for wiring instructions). 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 27 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. The display will then show the current indoor humidity along with the humidification setpoint (Section 9). Note: The humidity reading will not appear unless the Humidity Module has been installed.
  • Page 28 Section 6 Contents: I Programming a Daily Schedule ........= Overriding the Daily Schedule ........6. 6 Page 6. I...
  • Page 29 Programming a Daily Schedule Press PROGP._M Press the PROGRAM button to enter time period programming. Use the Programming Worksheet on the back cover to help with this section Select the max mum # of occupied periods to be used on any one day Typically most installations...
  • Page 30 Adiust the h eating point for Unoccupied periods (OF, 95 % 99°) Select the day for Occupied _cctlpied (No- _> Adjust the start time for Occupied occupied Press F3F3 • Adjust the stop time for Occupied Press Select Occupied 1 to run on this day (On), or not to Press...
  • Page 31 The copy command becomes available after the m aximum occupied pedods are p rogrammed in aday T his example uses only one occupied pedod. Y°_ Select Yes to copy the !_ JU previous day's program tothis Selecting Yes, then pressing mode wi[[ copy prevous day's...
  • Page 32 Select Occupied t to run on this day (On), or not to _S;_ run on this day (Off) Y :,e t' os to copy n2 the previous day's .oPr°gramt°th_sdt_'_l es thenpres Icop previous day's program If yes is selected each MODE time, this routine...
  • Page 33 Over,cling 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. Unoccupied Operation - During programmed, unoccupied periods, pressing the OVERRIDE button will temporarily...
  • Page 34 Section 7 Contents: a Using the Fan Button ....7.2 Smart Fan Operation ....7.2 Setting the Fan-Off Time Delay.......... = Fan Purge Operation ....7.4 Page 7. I...
  • Page 35 Usin_ 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 36 Setting the Fan-O_;Time Dday 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, the Fan Off Delay is set for zero seconds, the fan will not energize after a call for cooling has been satisfied.
  • Page 37 Opera n When this feature is activated, the fan will turn on during an unoccupied period at a preset amount of time prior to Occupied 1. This preoccupancy fan purge timer may be set from zero to three hours, in 15 minute increments. Zero means this feature is turned off.
  • Page 38 Section 8 Contents: u Turning On/Off the Backlight........= Programming the Thermostat to Display Temperature Fahrenheit or Celsius ....8.2 = Locking/Unlocking Keypad........" Programming a Security Level .......... Page 8. I...

  • Page 39: Turning On/Off The Backlight

    Turning On/Of_the Backlight Moo_ Press MODE button. While holding MODE, press PROGRAM Note: Press MODE pROGRAM button to enter Setup screens, button move momentarily through setup screens. Press hold MODE Press MODE button repeatedly button to move back- _oo_ until this setup screen...

  • Page 40: Keypad

    Lo&ing/Unbc/dng 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

    Proooramming a Security Level When a security level has been programmed, the thermostat will allow limited adjustment to the setpoints (steps # 8 and 9). In security levels 2 and 3, the thermostat is forced into the Program On mode. To disable the security feature, set the value in step #7 to 0;...
  • Page 42 Section 9 Contents: = Installing the Humidity Module ........= Setting a Thermostat Jumper for Humidity Operation .... 9.3 = Adjusting the Humidification Setpoint........NOTE: humidification functions described in this section will only available if a Humidity Module been properly installed.
  • Page 43 Installing the Humidity Modub 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. Once the Humidity Module has been installed, you must adjust the Humidity jumper setting to HUM as shown in Figure 1 below.
  • Page 44 Setfn_ a 7_ermostat ]umper f_r Humidity Operation To operate one of the MISC outputs using humidity-based operation, 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 Adi.5 ng the H.midipcafion Se oint 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. The value for this setpoint ranges from 0% to 60%.

  • Page 46: Table Of Contents

    Section 10 Contents: = Configuring a Thermostat Output Jumper for Dehumidification Operation ........ 10.2 a Adjusting the Dehumidification Setpoint........10.3 a Using YourAir Conditioner to Dehumidify......10.4 = Using the Reheat Function ........10.5 u Using the DEHUM Terminal ........

  • Page 47: Operation

    Setting a Thermostat ]umper fbr Dehumichflcation Operation To control a MISC output for 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). This will supply 24VAC to the selected MISC terminal based on the programming in the following pages.

  • Page 48: Setpoint

    Adiusting 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 setpointyou have chosen. See page 10.6 for detailed programming instructions.

  • Page 49: Using Yourair Conditioner To Dehumidify

    Using Your Air Conditioner to Dehumidfy 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 percentage is above the setpoint for dehumidification, and heating or cooling is not on, the thermostat will force the compressor to run with...

  • Page 50: Using The Reheat Function

    Using the geheat Function This feature allows the thermostat to turn on Electric Heating (W2) during Cool to Dehumidify to maintain room temperature until the dehumidification setpoint is reached. The cooling cycle will allow for the dehumidification of the air to occur while the Electric Heating will allow for a constant room temperature.

  • Page 51: 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 52 Section Contents: a Viewing the Heat Run-Time ......... 11.2 = Viewing the Cool Run-Time ......... 11.3 == Viewing the Override Run-Time ......... 11.4 = Viewing the Humidifier Run-Time ........ 11.5 Viewing the UV Light Run- Time ......... 11.6 Page I I.I...
  • Page 53 Viewing the Heat P_n-Time - Energy Watch This display will track the number of hours that your heating system has been operating. Press the FAN button to reset the counter. Press the MODE button. While holding MODE the MODE, press the PROGRAM Note: Press the MODE PROeP_M...
  • Page 54 - EneroeyWatch Hewing the Cool P_n-Time This display will track the number of hours that your cooling system has been operating. Press the FAN button to reset the counter. MODE Press the MODE button. While holding the MODE, press the PROGRAM Note: Press the MODE button momentargy...
  • Page 55 Kiewing the Ovenide Operation _n-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. MODE Press the MODE button. While holding the MODE, press...
  • Page 56 Viewing the Humidi_tion Run-Time After your humidification system has been operating for the number of days set in step #17 below, the Service Humidify icon will appear. This counter keeps track of the number of days since the Service Humidify icon was reset.
  • Page 57 Viewingthe UV L ht P n-Time After the UV light has been operating for the number of days set in step #18 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 58 Section 12 Contents: = Viewing the Heat Pump Reversing Valve Jumper Setting ........12. 2 Viewing the Electric Heat Jumper Setting ....... 12. 3 Using Emergency Heat.... 12.4 Page 12. I...
  • Page 59 Viewing the Heat Pump and Reversing Valve lumper Settings Steps 19 and 20 are 'Read Only' and may only be set with the jumpers on the circuit board of the thermostat. Press MODE button. While holding MODE Note: Press the MODE MODE, press PROGRAM...
  • Page 60 VieMng the Electnt Heat ]umper 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, Step 21 is 'Read Only' and may only be set with the jumpers on the circuit board of the thermostat.
  • Page 61 Using ! Heat ENTER EMERGENCYHEAT: 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 the UP button. The Cool setpoint display will read 'EH' (emergency heat). 4"...
  • Page 62 Section 13 Contents: = Adjusting the HeaUCool Differential......13.2 = Adjusting the Cycles Per Hour........13.3 m Adjusting the Deadband..13.4 = Adjusting the Minutes Run=Time Before Next Stage ....... 13. 6 = Selecting 2nd Stage Turn Off Temperature .....
  • Page 63 Adjustin 8 the Heat!Cool Diff_erential 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 MODE Note:...
  • Page 64 Adjusting the dycles Per Hour The Cycles Per Hour setting limits 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 65 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 #27, page 13.6). It is adjustable from 0-60 minutes and the default is two minutes.
  • Page 66 Adjusting the Deadband For more detailed information, please see the explanation on the previous page. Moo_ _ Press the MODE button. While holding the MODE, press the PROGRAM Note: Press the MODE pgOGRAM button to enter Setup screens, button to move momentarily through setup screens.
  • Page 67 Adjustin_ the Minutes o)¢P_n-Time th-_Next Stage For more detailed information, please see the explanation on page 13.4. MO0_ @ Press the MODE button. While holding the MODE, press the PROGRAM Note: Press the MODE button momentarily pROORAM @ button to enter Setup screens, to move through...
  • Page 68 Seb_'ng 2rid StageTu_ Of_p_ature 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 after reaching the 1st stage deadband (see page !3.4 formore information).
  • Page 69 Section 14 Contents: = Configuring a Thermostat Output Jumper for Programmable Output Operation ....14.2 u Time-Based Control of the Programmable Output... 14.3 a Temperature-Based Control the Programmable Output..14.6 Page 14. I...
  • Page 70 Setting a Thermastat Jumper Praocrammable O utput Operation To control one of the MISC outputs using time, temperature, or Internet/phone based operation, place the MISC1, or MISC2, or MISC3 jumper on the terminal labeled PR©G (see diagram below). This extra output will supply 24VAC to the selected MISC terminal based on the programming described in the following pages, ©nly one of the three outputs (MISC1, MISC2, or MISC3) is required to have this jumper.
  • Page 71 Time-Based Control of the l_ogrammable Ou_ut To operate one of the MISC outputs using time-based operation, set Advanced Setup step #30 (below) for Time 18:88. This extra output will supply 24VAC to the selected MISC terminal, which is especially useful for devices that require a start and stop time. Refer to page 14.4 - 14.5 for more details on programming this output.
  • Page 72 Time-Based Control of the Programmable Ou_ut Programmable Output Polarity: NO = Normally C[0sed to turn Off between the start and stop times n steps 34 and 35 l--ll_ Press }n steps 34 and 35 NO = Normally Open to operaLe ..
  • Page 73 Time-Based Control of the l_ooerammable Ou_ut 9:00pro Adjust the programmable output stop time for Monday If Step 32 is set for l-Day, then Day of the Week and Copy functions do not appear or apply. Select Yes to copy the previous day's program to this day...
  • Page 74 _mperat.re-Based Control o/'the Programmable Output To operate a MISC output using temperature-based operation, program advanced setup step #30 (below) for temperature 88 °, This extra output will supply 24VAC to the selected MISC terminal based on the temperature of RS1 and the setpoint in step #36 (below). Possible TEMPERATURE scenario: 1) An exhaust fan in the attic of a store that needs to be energ-...
  • Page 75 Control of the lnternet/Phone Programmabb Output To operate a MISC output using Internet/phone-based operation, program advanced setup step #30 for Aux (below). This terminal is especially useful for devices that can be energized via the Internet. Telephone control may also be available when the thermostat is connected to the Internet.
  • Page 76 Section 15 Contents: s Installing the Remote Sensors ........15.2 " Controlling or Reading Remote Temperature (RS1)... 15.3 " Averaging the Remote Sensor (RS1) with the Thermostat Sensor........15.4 Page 15. I...
  • Page 77 Installing the Remote Sensors Up to eight wired or wireless remote sensors may be installed on the thermostat (RS1) to control the temperature in other rooms. If more than one sensor is connected to (RS1) the thermostat will average the sensors to determine the displayed temperature reading.
  • Page 78 co.trolli.g ac/i.g the Remote Temperature (RS I) The thermostat may be programmed to only READ the remote sensor, or to CONTROL to the remote sensor. Refer to advanced setup step #37, below. Read Only Sensor (RSl): If step #37 is set to only READ to the remote sensor, the thermostat will not use this sensor for temp- erature control.
  • Page 79 Averaging the Remote Sensor (P&D with the Thermostat Sensor If step #37 is set to control to the remote sensor, the thermostat will ignore the reading of its internal temperature sensor and only display the temperature reading from the remote sensor, The degree icon on the thermostat will blink once per second to indicate that a remote sensor reading is being displayed.
  • Page 80 Section 16 Contents: = Dry Contact Operation .... 16.2 Dry Contact Polarity....16.2 s Dry Contact Programming ..16.3 g Random Start Operation ..16.4 Page 16. I...
  • Page 81 Dry Contact Operation If the dry contact is going to be used, select YES in step #39. If the dry contact is not going to be used, select NO in step #39 below. DRY CONTACT POLARITY - The terminals may be set to be Normally Open (NO) or Normally Closed (NC) in step #40.
  • Page 82 Dry Contact Programming OCCUPIED 1 OR SERVICE THE CONDENSATE DRAIN PAN - If Occupied 1 is selected in step #41 (below), when the dry contact is energized the thermostat will be forced into Occupied 1 setpoints and the Occupied 1 icon will blink (Section 6). The thermostat must be in Program On mode for this feature to have any effect.
  • Page 83 Random Start Operation This feature allows a 2 to 30 second delay before energizing the thermostat outputs after any of these events: Loss of Power to the thermostat: When power to the thermostat is interrupted and then restored, Random Start will lockout the outputs of the thermostat for a random amount of time, This delay helps to keep multiple thermostats from energizing their outputs at the same time after a power outage.
  • Page 84 Section Contents: a Setting up the Thermostat for Light Activated Operation ........ 17.2 a Adjusting the Light Sensor..17.3 Page 17. I...
  • Page 85 Settingup the Thermostat/br Light Activated Operation A light sensor is provided on the thermostat for light activation. If the thermostat is set up to be light activated, the thermostat will enter Occupied 1 and blink the Occupied 1 icon when a light source is detected.
  • Page 86 Adjusting the Light Sensor The light sensor can be adjusted for variable degrees of sensitivity. The sensitivity adjustment screw is located on the side of the thermostat, as illustrated below. Turning the screw clockwise increases the sensitivity of the sensor to light. To check for correct sensitivity, place the thermostat in the Program On mode.
  • Page 87 Haw to Use the En_gy Saw Feature If the thermostat is configured to be programmable (Section 4), and Energy Save has been selected in step #43 (below), the room will attempt to reach the selected comfort temperature at the exact time programmed into the thermostat, Energy Save, or more commonly known as Smart Recovery, only works when the thermostat enters...
  • Page 88 Section 19 Contents: = Setting and Resetting Service Filter (Fan Run=Time) Alerts ........19.2 Setting and Resetting the UV Light Run=Time Alerts ..... 19.3 a Setting and Resetting Humidify Run-Time Alerts ..19.4 Page 19. I...
  • Page 89 blow to Set and Reset the Service Filter (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. The Service Filter icon will appear after the preset number of hours of fan run-time in step #45 (below) has been achieved, Setting this counter to zero in step #45 will prevent the...
  • Page 90 How _ Set and Reset the UV L_ht Run-Time Abrt 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 #46 (below). Setting the counter to zero in Step #46 will prevent the Service UV Light icon from ever appearing.
  • Page 91 How to Set and Reset the Humidifier P_n-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 #,47 (below) has elapsed, Setting this counter to zero in step #47 will prevent the Service Humidify icon from ever appearing.
  • Page 92 When the thermostat is programmed for a Holiday mode, it will take effect at 12:00 am of the next day. In order for the Holiday mode to take effect the thermostat must be in the Program On mode. The thermostat will control to the Unoccupied cooling and heating setpoints set in Section 6, pages 6.2 and 6.3.
  • Page 93 Programming Holiday Mode (_o_t_._d9 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 94 Section Contents: a Configuring the Jumpers ..21.2 Explanation of Jumper Settings ........21.3 Page 2 I. I...
  • Page 95 Conj'7_ullng the I'umpers 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 five choices available.
  • Page 96 Explanationo ]ump Setdngs W3 JUMPER SETTING If the jumper for MISCI , MISC2, or MISC3 is set to W3, the corresponding MISC screw terminal on the backplate will control a third stage of heat. W3 MULTFSTAGE OPERATION EXPLAINED - PAGE 134 3rd Stage of Heat is turned...
  • Page 97 Explanation of ].mWr Settings ¢_o.tt._d_ HUM JUMPER SETTING If the jumper MISC1, MISC2, or MISC3 is set to HUM, the corresponding MISC screw terminal the backplate will control a humidification system, HUMIDIFICATION OPERATION - SECTION If your HVAC unit is equipped with a humidification system and the Humidity Module (sold separately)
  • Page 98 Explanation of ]ump_ Settings (_o_tt_ ECON JUMPER SETTING If the jumper for MISC2 or M/SC3 is set to ECON, the corresponding M/SC screw termina/ on the backp/ate wit! be connected to an economizer, ECONOMIZER OPERATION - If your HVAC unit is equipped with an economizer system, the thermostat will provide power to the MISC2 or...
  • Page 99 Section 22 Contents: = Resetting the Thermostat to the Factory Default Settings ..22.2 = Cafibrating the Temperature and Humidity Sensors ... 22.3 Viewing the Remote Temperature Sensors .... 22.4 Page 22. I...
  • Page 100 Resetting the Thermostat to the Factory Default Settings (,_r default values seepage 24.1) If, for any reason, you desire to return all the stored settings back to the factory default settings, follow the instructions below. WARNING: This will reset all Time Period and Advanced Programming...
  • Page 101 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. Place the thermostat in the OFF mode...
  • Page 102 Viewing the Remote 7_mperature Sensors Each sensor is programmed with a hard-coded" address that the thermostat 'scans" in order from lowest to highest. Therefore, in order to determine which sensor corresponds to the number on the setup screen you will need to disconnect each sensor from the group in order to determine which sensor number reads dashes.
  • Page 103 ACCESSORY PORT - The R Jll Jack is used to connect the 33CS450-01 to the IR Receiver PIN 33CSIRRCVR-01 for wireless communication or the EZ Programmer PIN 33CSPGMR-01 for easy downloading or uploading of thermostat information. Accessory Port is located bottom _ermostat.
  • Page 104 Range i 4.z es/No Auto-Changeover es/No Thermos'at FanOffDelay I 7"_ ,30,60, -3 hrs. ,uto/On/ ForC 5°- 99" 80" 5"- 99" 65" t0.4 _l/Off Off_ 10.4 "-5" 3° )n/Off IO/NC 80" ,_adonly I tt 3 }ad only Energy Watch - Coot Timer Override Run-Time I tt.4 }ad onlv-...
  • Page 105 dehum, 10.6 front panel, minutes of run humidity, 2.2, 5.3, 9.4, 10.4 time, I 3.4, 13.6 21.5,24.1 Holiday, 2.2, 5.2, turn 15.3,20.1 Accessory Port, 23. I Alerts mode, 1.3, 2.2, 4.2, temperature, see Run Time 8.3, 22.2 13.7,24.1 Auto outside, 2.2, 5.2 Y2 operation, 21.8...
  • Page 106 display, 2.4 service pan. 16.3 Fan_ setting, 1.2, 3.2 Random start. 16.4 button function, Deadband Buttons I st stage, 13.4 I 3.5, off time delay, 7.3, 24. I 24. I 2nd stage, 13.4-13.5, on during heat, see 21.3,21.5,24.1 Electric Heat Economizer 3rd stage, 13.4...
  • Page 107 12.4 minutes ofrun icon, 2.5, 5.2 time, 13.4, 13.6, security setpoint, 24. I temperature, 2nd stage Holiday Jumpers deadband, button, see Buttons DEHUM, 21.4 Deadband light activation, 17.2 ECON, 21.5 emergency heat, mode, 20. I 20.2 ELEC, 12.3 12.4 electric heat, 12.3, programming, 20.
  • Page 108 random start, 16.4 Thermostat, 4.2, Mode, 1.3, 2.3 sensor; 4.4-4.5 Outdoor, 17.2 see Outside adjustment, 17.3 Normally Locked Indlcatlon Outside Open/Closed, see Keypad Lockout button, see Buttons dry contact. 16.2 icon, 2,3 programmable icon, 2.5, 5.2 sensor, 2.3, 5.2, 13. I * output, 14.4, 14.6 14.7...
  • Page 109 daily schedule, 6.2-6.4averaging, 15.4 cool, 11.3, 24.1 mode, 1.3, 4.4 4.8 calibrate, 22.3 heat, I 1.2, 24. I on at a tl times, Contro_ to, 1 5.3- Humidification, On i con, 2.3 15.4, 22. I 11.5,24.1 override, override, II .4, see Override degree icon blink,...
  • Page 110 10.5 10.6 Time Schedule, heat, see Heat Program holiday, 20. I humidification, occupied, programmable output, 14.6 security, Unoccupied icon. 2.3 unoccupied, 6.2 6.3 Setup Icon, operation. override, Simplest Operation, 4.2-4.3 Override Smart Fan, 7.2 setpoint. 6.2 6.3 Smart Recovery, UV Light icon.
  • Page 111 Five Year Warranh/ This PIx_duct is warranted to be free from defects in material workmanship If it appea_ within five years flx_m date of original installation, whether actual begins that date, that ploduct does meet this warranty a now remanutectured par_ at the manufacturer's...
  • Page 112 • o vTo PERIOD START TIME ._OOL HEAT Unoccupied N° Occupied Occupied Occupied • Unoccupied Occupied AD Occupied Occupied _E_ Unoccupied , Tue'--_Wed Occupied sE Occupied Occupied • Unoccupied UR Occupied Occupied Occupied Unoccupied Occupied Occupied Occupied Unoccupied /Fii"_Sat Occupied Occupied Occupied Unoccupied...

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