Venstar T2800 Owner's Manual

Commercial 7-day up to 3-heat & 2-cool

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Installation instructions manual (24 pages)

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Calibration manual (4 pages)

Table Of Contents

Table of Contents

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See also: Instruction and Installation Manual

Enlarged version

Digital

Thermostat

Control up to 3 Heat &

2 Cool Stages

3 Configurable Outputs

Adjustable 2nd & 3rd Stage

Timers & Deadbands

Backlit Display & Button

Legends

Aux Heat Indicator

Set Point Limiting

Meets Commercial California Title 24

Use with most Air Conditioning & Heating Systems including: 1 or 2 Stage

Electric Cooling & 3 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat.

OWNER'S

MANUAL

Venstar Inc. 08/07

commercial

THERMOSTAT

T2800

7-DAY

PROGRAMMABLE

up to 3-heat

& 2-cool

HEAT

COOL

PUMP

Outdoor Sensor Ready with

High/Low Readouts for the Day

Accepts EZ Programmer

Accepts Optional Humidity

Module: Controls Humidification

and Dehumidification

Accepts Optional IR

Remote Control

Accepts Comfort Call

Phone Control Accessory

Table of Contents

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Summary of Contents for Venstar T2800

Page 1 Phone Control Accessory Meets Commercial California Title 24 Use with most Air Conditioning & Heating Systems including: 1 or 2 Stage Electric Cooling & 3 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat. OWNER’S OWNER’S MANUAL MANUAL Venstar Inc. 08/07...
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 MISC JUMPER BLOCK! THIS MAY DAMAGE YOUR THERMOSTAT.
Page 3 How to Use This Manual 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. SECTION 14 Timers and Deadbands Header shows section #...
Page 4: Glossary Of Terms
Glossary of Terms 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 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 Run-Times Electric Heat and Heat Pump Operation Timers and Deadbands Energy Save...
Page 7: Quick Start
SECTION 1 Quick Start 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. These settings are depicted in the illustrations throughout this manual.
Page 8: Setting The Clock
HUMIDITY MODE During Setup & Programming: SET CLOCK Press the MODE and HUMIDITY buttons Pressing the UP or DOWN at the same time buttons will modify the flashing selection. Setting the Clock I2:00 Setup To adjust the Clock or Day use Press Setting the Day MODE...
Page 9: Selecting Heat/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. MODE I2:00 Cooling Only The COOL setting indicates the temperature the room has to...
Page 10: Selecting Desired Temperature
Selecting Your Desired Temperature (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. Adjust the desired I2:00 set temperature with the AUTO buttons.
Page 11: Getting To Know Your Thermostat
SECTION 2 Getting to Know Your Thermostat Section 2 Contents: Front Panel Buttons.....2.2 Display Features......2.3 Page 2.1...
Page 12: Front Panel
Front Panel Warmer Button Backlit LCD Display (glows red) sometimes referred to as the UP button I2:00 AUTO Cooler Button sometimes refer- (glows blue) red to as the DOWN button Override Heat or Cool Demand Indicator Button Red = Heat, Green = Cool eries PLATINUM COMMERCIAL PROGRAMMABLE THERMOSTAT...
Page 13: 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. COOL - Indicates the air conditioning mode. AUTO - Indicates the system will automatically changeover between heat and cool modes as the temperature varies.
Page 14 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. Setup icon - Sections 7-15 Indicates the thermostat is in the setup mode.
Page 15 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 therm- ostat is programmed for Heat Pump operation.
Page 16: Setting Clock And Day
SECTION 3 Setting the Clock and Day 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 HUMIDITY MODE During Setup & Programming: SET CLOCK Press the MODE and Pressing the UP or DOWN HUMIDITY buttons at the same time buttons will modify the flashing selection. Setting the Clock I2:00 Setup To adjust the Clock or Day use Press Setting the Day MODE...
Page 18: Basic Operation
SECTION 4 Basic Operation 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 4.1...
Page 19: Programmable/Non-Programmable Thermostat
Programmable or Non-Programmable 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 Off, Heat, Cool, and Auto screens may be accessed by pressing the MODE button.
Page 20 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’...
Page 21 Operating Mode when the Thermostat 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. Select the Mode by Pressing the MODE Button I2:00 Heating Only The HEAT setting indicates the...
Page 22 Operating Mode when the Thermostat 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 pressing the MODE button Select the Mode by Pressing the MODE Button I2:00 Heating Only The HEAT setting indicates the...
Page 23 Operating Mode when the Thermostat 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. Select the Mode by Pressing the MODE Button I2:00 Heating Only The HEAT setting indicates the...
Page 24 Operating Mode when the Thermostat 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. Select the Mode by Pressing the MODE Button I2:00 Heating Only The HEAT setting indicates the...
Page 25 Selecting Your Desired Temperature (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 I2:00 set temperature with the AUTO...
Page 26: Viewing Temperature And Humidity Sensors
SECTION 5 Viewing the Temperature and Humidity Sensors Section 5 Contents: Viewing the Outdoor Temperature......5.2 Viewing the Indoor Humidity........5.3 Page 5.1...
Page 27: Viewing The Outdoor Temperature
Viewing the Outdoor Temperature Requires an outdoor sensor (optional accessory) to be installed. To read the temperature from the outdoor sensor, press the PROGRAM and HOLIDAY buttons. The display will then show the current outdoor temperature along with the highest and lowest temperatures for the day. Press the PROGRAM PROGRAM HOLIDAY button.
Page 28 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 29: Programming The Daily Schedule
SECTION 6 Programming the Daily Schedule Section 6 Contents: Programming a Daily Schedule........6.2 Overriding the Daily Schedule........6.6 Page 6.1...
Page 30: 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. Typically most installations occupied use only Occupied 1.
Page 31 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 MODE 6:00 Stop Adjust the stop time...
Page 32 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: If Yes is selected: Selecting Yes, then pressing mode will copy the previous day’s program.
Page 33 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: 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. Unoccupied Operation - During programmed, unoccupied periods, pressing the OVERRIDE button will temporarily force the thermostat into Occupied 1 comfort settings for 30 minutes.
Page 35: Programming The Fan Operation
SECTION 7 Programming the Fan Operation 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: Smart Fan Operation
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 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 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 Turning On/Off the Backlight Turning On/Off the Backlight Press the MODE button. While holding Press the MODE button. While holding MODE MODE Note: Press the Note: Press the MODE MODE the MODE, press the PROGRAM the MODE, press the PROGRAM button momentarily button momentarily button to enter Setup screens.
Page 40: 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
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. To disable the security feature, set the value in step #6 to 0; this will cause steps # 7 and 8 not to appear.
Page 42: Humidification
SECTION 9 Humidification 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. Disclaimer: The manufacturer of this thermostat cannot be liable for misinstallation, improper connection or improper programming of...
Page 43 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. Once the Humidity Module has been installed, you must adjust the Humidity jumper setting to HUM as shown in Figure 1 below.
Page 44 Setting a Thermostat Jumper for Humidity Operation To control a MISC output 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 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. The value for this setpoint ranges from 0% to 60%.
Page 46: Dehumidification
SECTION 10 Dehumidification 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. For instructions on installing the Humidity Module please see page 9.2.
Page 47 Setting a Thermostat Jumper for Dehumidification 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 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. See page 10.6 for detailed programming instructions.
Page 49 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 percentage is above the setpoint for dehumidification, and heating or cooling is not on, the thermostat will force the compressor to run with the fan, thus reducing moisture in the air.
Page 50 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 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 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. Press the MODE button. While holding MODE the MODE, press the PROGRAM Note: Press the...
Page 53 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 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 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: Reversing Valve Jumper Settings
Viewing the Heat Pump and 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. Press the MODE button. While holding MODE Note: Press the MODE the MODE, press the PROGRAM button momentarily...
Page 57 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 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 the UP button. The Cool setpoint display will read ‘EH’ (emergency heat). I2:00 Press for Emergency Heat...
Page 59: Timers And Deadbands
SECTION 13 Timers and Deadbands 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 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 MODE the MODE, press the PROGRAM Note: Press the...
Page 61: Adjusting The Cycles Per Hour
Adjusting the Cycles 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 62: 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). It is adjustable from 0-60 minutes and the default is two minutes.
Page 63 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. PROGRAM to move through the setup screens.
Page 64 Adjusting the Minutes of Run-Time 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 MODE the MODE, press the PROGRAM button momentarily button to enter Setup screens. PROGRAM to move through the setup screens.
Page 65 Selecting nd Stage Turn 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 after reaching the 1st stage deadband ( see page 13.4 for more information).
Page 66: Energy Save Operation
SECTION 14 Energy Save Operation 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 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 How 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 #28 (below) has been achieved.
Page 69 How to Set and Reset the UV Light 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). Setting the counter to zero in Step #29 will prevent the Service UV Light icon from ever appearing.
Page 70 How to Set and Reset the Humidifier 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. Setting this counter to zero in step #30 will prevent the Service Humidify icon from ever appearing.
Page 71: Programming The Holiday Mode
SECTION 16 Programming Holiday Mode 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 72: Programming Holiday Mode
Programming Holiday Mode (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 Section 17 Contents: Configuring the Jumpers..17.2 Explanation of Jumper Settings........17.3 Page 17.1...
Page 74 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 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 The 3rd Stage of Heat is turned on when: (A) The 1st and 2nd stages have been on for the time required (steps 23 and 24, page 13.6).
Page 76 Explanation of Jumper Settings (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. NOTE: Not all furnaces have a dehumidification terminal. DEHUMIDIFICATION OPERATION - SECTION 10 If your HVAC unit is equipped with a dehumidification system the thermostat will operate in one of two ways.
Page 77 Explanation of Jumper Settings (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. 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 78: Factory Defaults, Calibration, And Sensors
SECTION 18 Factory Defaults, Calibration, and Sensors 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: Factory Default Settings
Resetting the Thermostat to the Factory Default Settings (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. WARNING: This will reset all Time Period and Advanced Programming to the default settings.
Page 80: 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. I2:00 Place the thermostat in the MODE...
Page 81: Accessories
SECTION 19 Accessories ACCESSORY PORT - The RJ11 Jack is used to connect the T2800 to the IR Receiver (ACC0431) for wireless communication or the EZ Programmer (ACC0432) for easy downloading or uploading of thermostat information. The Accessory Port is located on the bottom of the thermostat.
Page 83 SECTION 21 Index 8.3, 18.2 temperature, outdoor, 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 Accessory Port, 19.1 Alerts droop, see Deadband electric/heat pump, see Run-Time Auto 12.2 icon, 2.3 adjust temperature, 1.4, 4.8 indicator, 2.2...
Page 84 SECTION 21 Index Index 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 1st stage fan-off, see Fan Fahrenheit, 8.2 deadband, see...
Page 85 SECTION 21 Index 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 Heat Pump IR Remote Control, security setpoint, 8.4 AuxHeat, 2.4...
Page 86 SECTION 21 Index Index icon, 2.3 sensor, 2.3, 5.2 viewing temperature, 2.3, Non-Programmable Red Indicator, 2.2 Thermostat, 4.2, Override Reset button, see Buttons 4.4-4.5 thermostat settings, Normally daily schedule, 6.6 see Factory Defaults icon, 2.3 Open/Closed, run-time dehum terminal, timer, 6.6 fan/filter, 15.2, viewing run-time, 20.1...
Page 87 SECTION 21 Index 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 Security Terminal, MISC, see level, 8.4, 20.1 MISC...
Page 88 Section 22 Warranty One-Year Warranty - This Product is warranted to be free from defects in material and workmanship. If it appears within one year 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 provided without charge for the part itself provided the defective part is returned to the distributor through a qualified servicing dealer.
Page 89 P/N 88-603 Rev. 1...

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