Venstar T2050 Programmable Digital THERMOSTAT
CAUTION
Follow the Installation Instructions before proceeding. Set the thermostat mode to “OFF†prior to changing settings in setup or restoring Factory Defaults.
FCC Compliance Statement
This equipment has been tested and found to comply with the limits for an intentional radiator, pursuant to Part 15, subpart C of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference in radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and the receiver.
- Connect the equipment to an outlet on a circuit different from that of the receiver.
- Consult the dealer or an experienced radio or TV technician for help.
Notice: Only peripherals complying with FCC limits may be attached to this equipment. Operation with noncompliant peripherals or peripherals not recommended by Venstar is likely to result in interference to radio and TV reception. Changes or modifications to the product, not expressly approved by Venstar could void the user’s authority to operate the equipment.
FCC – INDOOR Mobile Radio Information
To comply with FCC/IC RF exposure limits for general population / uncontrolled exposure, the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. This Device complies with Industry Canada License-exempt RSS standard(s). Operation is subject to the following two conditions: 1) this device may not cause interference, and 2) this device must accept any interference, including interference that may cause undesired operation of the device.
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. We, Venstar, declare under our sole responsibility that the device to which this declaration relates: Complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This Explorer Mini thermostat has the ability to receive updates to its firmware. Periodically firmware updates are released by the manufacturer to add features and/or performance enhancements. This manual was produced reflecting the most current firmware/feature set at the time of publication, firmware rev. 1.0. Firmware releases after rev. 1.0 may not be adequately depicted in this manual. Please refer to the appropriate website or contact your place of purchase to learn about changes to the thermostat after firmware release 1.0.
IMPORTANT
Follow Installation Instructions carefully. Disconnect the Power to the Heater/Air Conditioner before removing the old thermostat and installing the new thermostat.
Glossary of Terms
- Auto-Changeover: A mode in which the thermostat will turn on the heating or cooling based on room temperature demand.
- Cool Setpoint: The warmest temperature that the space should rise to before cooling is turned on (without regard to the dead band).
- Deadband: The number of degrees the thermostat will wait, once a setpoint has been reached, before energizing heating or cooling.
- Differential: The forced temperature difference between the heat setpoint and the cool setpoint.
- Heat Setpoint: The coolest temperature that the space should drop to before heating is turned on (without regard to the dead band).
- Icon: The word or symbol that appears on the thermostat display.
- Mode: The current operating condition of the thermostat (i.e. Off, Heat, Cool, Auto, Program On).
- Non-Programmable Thermostat: A thermostat that does not have the capability of running Time Period Programming.
- Programmable Thermostat: A thermostat that has the capability of running Time Period Programming.
- Pre-Occupancy Purge: Fan operation prior to Occupied 1.
- Temperature Swing: Same as Deadband.
- Time Period Programming: A program that allows the thermostat to automatically adjust the heat setpoint and/or the cool setpoint based on the time of the day.
Installation Instructions
Remove and Replace the old thermostat
To install the thermostat properly, please follow these step-by-step instructions. If you are unsure about any of these steps, call a qualified technician for assistance.
- Installation tools: Small flat blade screwdriver, Phillips screwdriver, wire cutters, and wire strippers.
- Make sure your Heater/Air Conditioner is working properly before beginning the installation of the thermostat.
- Carefully unpack the thermostat. Save the screws, any brackets, and instructions.
- Turn off the power to the Heating/Air Conditioning system at the main fuse panel. Most residential systems have a separate breaker or switch for disconnecting power to the furnace.
- Remove the cover of the old thermostat. If it does not come off easily, check for screws.
- Loosen the screws holding the thermostat base or subbase to the wall and lift away.
- If you have a smartphone handy, take a photo of the wiring for future reference.
- Disconnect the wires from the old thermostat. Tape the ends of the wires as you disconnect them, and mark them with the letter of the terminal for easy reconnection to the new thermostat.
- Keep the old thermostat for reference purposes, until your new thermostat is functioning properly.
Wire Connections
If the terminal designations on your old thermostat do not match those on the new thermostat, refer to the chart below or the wiring diagrams that follow.
| Wire from the old thermostat terminal marked |
Function |
Install on the new thermostat connector marked |
| G or F | Fan | G |
| Y1, Y | Cooling | Y1 |
| W1, W | Heating | W1/O/B |
| Rh, R, M, Vr, A | Power | R |
| C | Common | C |
| O/B | Rev. Valve | W1/O/B* |
| W2 | 2nd Stage Heat | W2 |
| Ck1 | Dry Contact Switch | CK |
| CKGND | Dry Contact Switch | R |
O/B is used if your system is a Heat Pump.
The Explorer Mini Thermostat Backplate
To remove the thermostat backplate: Gently separate the display from the base by pulling from the center.
- R 24 VAC return
- G Fan relay
- W1/O/B 1st stage heat circuit
- W2 2nd stage heat circuit
- Y1 1st stage compressor relay
- Y2 2nd stage compressor relay
- C 24 VAC common
- CK1 Dry Contact
IMPORTANT: This thermostat requires both R (24 VAC Return) and C (24 VAC Common) wires be connected to the backplate terminals to operate properly.
Check Dip Switch
Ensure which switch is correct for your system. Dip switches are located on the back of the thermostat.
- This switch (GAS or ELEC) controls how the thermostat will control the Fan (G) terminal in heating mode. When GAS is chosen, the thermostat will not energize the Fan (G) terminal in heating. When ELEC is chosen the thermostat will energize the fan in heating.
- For Heat Pump Only
When the GAS/EL or HP dip switch is configured for HP, this dip switch (O or B) must be set to control the appropriate reversing valve. If O is chosen, the W1/O/B terminal will energize in cooling. If B is chosen, the W1/O/B terminal will energize in heating. - This dip switch configures the thermostat to control a conventional gas/electric system or a heat pump. If your system is anything other than a heat pump, leave this switch set for GAS/EL.
1 Stage Heat, 1 stage Cool
2 Stage Heat, 2 Stage Cool
Single Stage Heat Pump with AUX Heat
Dual Stage Heat Pump with AUX Heat
Heat Only – with Venstar 2-Wire Kit – ACC0436
Connect to Wi-Fi Overview
At a minimum, the first 3 tasks below must be completed to access your thermostat remotely from a browser. The 4th step is optional (highly recommended) and only is needed to access your thermostat(s) from a mobile device.
These steps are:
- Successful connection to a local Wi-Fi Access Point with internet access.
- Confirm receipt of a Skyport-generated verification email (this only occurs once during the Skyport account setup).
- A 6-digit code obtained from the thermostat is successfully entered into a Skyport account.
- Successfully download and install the Venstar Skyport app on your mobile device(s).
- Your thermostat operates on the 2.4 Ghz, Wi-Fi b/g/n band.
Wi-Fi Symbol Legend
- When only the ‘dot’ of the Wi-Fi symbol appears = not connected to an access point.
- When the full Wi-Fi symbol appears = connected to an access point.
- When the full Wi-Fi symbol appears and the ‘dot’ of the symbol is flashing = connected to Skyport.
Wi-Fi Setup
The Venstar Configurator App is needed to configure the Wi-Fi Settings of this thermostat
- Download the Venstar Configurator App from your mobile device’s App Store.
- Open the Venstar Configurator App
- Choose the Explorer Mini thermostat by sliding the thermostat pictures at the top of the app’s display to the left until you see a picture of the Explorer Mini.
- Press and hold the OVERRIDE button of the thermostat for approximately 5 seconds to enter the Wi-Fi setup screens.
- Press the cooler button to set up Wi-Fi.
- Follow the instructions that appear on the Venstar Configurator App.
Connect to Skyport
Although there is more than one way to create a Skyport account, the steps below illustrate account creation from a browser. To create a Skyport account a thermostat must be joined to the account. If the thermostat is connected to the local Wi-Fi Access Point, but you do not have a Skyport account, you may create an account and join the thermostat to the account by doing the following:
- Open your browser to: http://Venstar.skyportcloud.com
- Select “Create account now”
- Follow the on-screen instructions to create an account and add a thermostat to the Skyport account.
Connect to Wi-Fi Overview
Join a Thermostat to Skyport
If the thermostat is connected to the local Wi-Fi access point but not yet joined to an existing Skyport account, you may join the thermostat to the account by doing the following:
- Log in to your Skyport account.
- Select the “Location” to you want to add a thermostat into.
- Select the “Thermostat tab”.
- Select “+ Add thermostat”. A screen will ‘pop up asking for a six-digit code.
- Press the OVERRIDE button on the thermostat for 5 seconds.
- Press the Warmer button on the thermostat.
- A six-digit code will appear on the thermostat’s display.
- Enter the six-digit code into your Skyport account.
Wi-Fi Status Screens
Press and hold the OVERRIDE button on the thermostat for 5 seconds. When “Wi-Fi Setup” appears on the display, press the MODE button. Pressing the up or down button will sequence through the following information:
- AP Name
- AP Signal Strength
- IP Address
- Skyport Status
- API Status
Front Panel
- Backlit Display
- Up/Warmer, Down/Cooler Buttons
- Mode Button
- Override Button
- Heat or Cool Indicator Heat = Red, Cool = Green
Display
- Mode Indicators Select the operational mode of the equipment.
- HEAT – Indicates the heating mode.
- COOL – Indicates the cooling mode.
- AUTO – Indicates the system will automatically changeover between heat and cool modes as the temperature varies.
- OFF – Indicates heating and cooling are turned off.
- Clock with Day of the Week
Indicates the current time and day. This clock is also used to
program the time period schedules. - Room Temperature Display
Indicates current room temperature. - Desired Set Temperature
Indicates desired room temperature(s).
- Occupied and Unoccupied icons
Indicates the part of the time period program. - Setup icon
Indicates the thermostat is in the setup mode. - Fan icon
When only the FAN icon is displayed, the fan is always on. If the FAN is not on the display, then the FAN is in Auto mode and will run only when necessary to heat or cool. - Locked icon
Indicates the thermostat’s control buttons have been locked. - Override icon
Indicates OVERRIDE is enabled.
Basic Operation
Selecting Your Desired Temperature (adjusting the setpoints)
Heat or Cool Mode
Using the Override Button Auto-Changeover Mode
Pressing the WARMER or COOLER buttons in Auto mode will adjust both the heat and cool setpoints simultaneously. To adjust the heat and cool setpoints individually, choose HEAT mode to adjust the heat setpoint, and COOL mode to adjust the cool setpoint, then return to AUTO mode.
Heat or Cool Mode
Pressing the UP or DOWN buttons in Heat or Cool mode will adjust only the heat or cool set temperature.
Using the Override Button OVERRIDE
Unoccupied Operation – During programmed, unoccupied periods, pressing the OVERRIDE button will force the 1 settings for 30 minutes. Each press of the OVERRIDE 30 minutes of time up to the amount specified in Setup Step 23. If the maximum time has been set, the next press of the OVERRIDE button will reset the timer and return the thermostat to the correct time period program for the day. Occupied Operation – During programmed, occupied periods, pressing the OVERRIDE button will force the thermostat into an unoccupied period for the rest of the day. During this forced unoccupied period the OVERRIDE button will operate as described above.
User Setup
Table for button presses that are required for entering various menus
TO ENTER MENUS BUTTON PRESS
- Setup Steps MODE & OVERRIDE for 5 seconds
- Time Schedule MODE & UP for 2 seconds
- Emergency Heat UP & OVERRIDE for 2 seconds
- Lockout Buttons MODE, UP & DOWN for 2 seconds
- Calibration MODE & DOWN for 2 seconds, then MODE
- Wireless Setup OVERRIDE for 5 Seconds
How to Change Settings in the Setup Screens
To enter the setup screens, press the MODE button, and simultaneously press OVERRIDE button for 5 seconds. Release the buttons when you see “Setup” on the display. Use the WARMER or COOLER buttons to adjust the value of your selection. Press MODE to advance to the next setup step. Press MODE and OVERRIDE together again to leave the setup screens.
Setting the Clock and Day
(setup step 1 & 2)
When your thermostat is connected to Skyport Cloud Services, the time and day of the week are controlled by Skyport. There is no local adjustment, Skyport also adjusts the time for Daylight Savings Time as well.
To set the time and day when not connected to Skyport; enter the setup screens by pressing the Mode button and simultaneously pressing the OVERRIDE button for 5 seconds. Setup step 1 adjusts the clock. Use the Warmer/Up or Cooler/Down buttons to adjust the time. Press the Mode button to advance to step 2. Select the day of the week using the Warmer/Up or Cooler/Down buttons. Leave the setup screens by again pressing the Mode button and simultaneously pressing the OVERRIDE button for 5 seconds.
User Setup: Backlight Operation
Backlight (Setup Steps 3-6) Backlight (setup step 3) OFF – Backlight turns on only with a button press and turns off after 8 seconds. ON – Backlight is on continuously.OFF – Backlight turns on only with a button press and turns off after 8 seconds. ON – Backlight is on continuously.Night Dimmer (setup step 4) – Selecting ON allows for turning off the backlight of the display during specific times of the day, usually at night.
Night Dimmer Start Time (setup step 5) – 12:00 am to 12:00 am Night Dimmer Stop Time (setup step 6) – 12:00 am to 12:00 am
Fan On or Fan Auto (Setup Step 7)
FAN ON – indicates constant fan operation. Fan On is not allowed when the thermostat is in the Off Mode or unoccupied. If FAN AUTO is selected, the fan will only operate during a heat or cool demand. The Fan is forced into FAN AUTO when running a program and the thermostat shows
Setpoint Limits (Setup Steps 8-10)
When this feature is set to ON, the Heat and Cool Setpoints may be restricted to preset levels in Setup Steps 9 and 10. Maximum Heat Setpoint (Setup Step 9) Minimum Cool Setpoint (Setup Step 10)
Lock OVERRIDE and MODE Buttons
This feature is available when the thermostat is connected to Skyport Cloud Services and may only be accessed through Skyport. This security feature is not accessible locally at the thermostat. When this setting is enabled; pressing the OVERRIDE or MODE buttons on the thermostat will have no effect. This feature is often used in conjunction with setpoint limits.
User Setup: Service Filter
These setup steps allow the user to monitor FAN runtimes and program service alerts. Service alerts appear on the display. If the thermostat is joined to a Skyport account, then the user may be alerted by Skyport Cloud Services when to change the filter.
Service Filter Runtime (Setup Step 11-14)
Current Service Filter Runtime Hours (Setup Step 11) – This counter keeps track of the number of hours of fan runtime in the Heating mode, Cooling mode, and in stand alone Fan operation. Press OVERRIDE to reset. Current Service Filter Calendar Days (Setup Step 12) – This counter displays the total number of calendar days that have elapsed since the counter was reset to help the user track Fan runtime.
Press OVERRIDE to reset. Set Service Filter Runtime Hours (Setup Step 13) – This timer allows the user to specify the number of hours the fan will run before the “Replace Filter” alert will be displayed. Press COOLER continuously until OFF is displayed to disable this alert. Set Service Filter Calendar Days (Setup Step 14) – This timer allows the user to specify
the number of calendar days that will elapse before the “Replace Filter” alert will be displayed. Press COOLER continuously until OFF is displayed to disable this feature.
Cycles Per Hour (Setup Step 15)
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. The Cycles Per Hour limit may be overridden and reset by pressing the WARMER or COOLER buttons on the thermostat. Settings are No Limit, 2, 3, 4, 5, or 6 cycles per hour. Compressor Minimum
Off Minutes (Setup Step 16)
This feature allows the user to set a minimum off time for the compressor. Settings are 0 to 5 minutes.
Minimum Heat/Cool
Setpoint Difference (Setup Step 17) This feature allows the user to set the minimum gap between Heat and Cool setpoints in AUTO mode. Select from 0 to 6 degrees.
Deadband Settings (Setup Step 18-21)
The Deadband is the number of degrees or minutes that the thermostat waits before it initiates the stages of heating or cooling.
1st Stage Deadband (Setup Step 18)
Specifies the temperature difference between the room temperature and the desired setpoint before the first stage of heating or cooling
is allowed to turn on. (1 – 6 degrees) For example, if the heat setpoint is 68Ëš and the 1st Stage deadband is set to 2 degrees, the room temperature will need to reach 66Ëš before the heat turns on.
2nd Stage Deadband (Setup Step 19)
Specifies the additional temperature difference after the first stage turns on before the second stage is activated. (0Ëš – 10Ëš) Minutes Between 1st and 2nd Stage (Setup Step 20)
Specifies the minimum time (in minutes) after the first stage turns on before the second stage can turn on. (0 – 60)
Second Stage Turnoff Point (Setup Step 21)
Specifies whether second stage will turn off at first stage deadband or remain on until the room temperature demand is satisfied. Choose between Deadband or Setpoint.
Fan Off Delay in Seconds (Setup Step 22)
This feature allows the user to increase the cooling or electric strip heating efficiency of the system. The thermostat may be programmed to continue running the fan after a call for cooling or electric strip heating has been satisfied.
This delay can be set for 0, 30, 60, 90, or 120 seconds. If set to 0, the fan will not run after a call for cooling or electric strip heating has been satisfied. Maximum Override Time (Setup Step 23) This feature limits the maximum override time when using the OVERRIDE button 1 – 4 hours. Fahrenheit or Celsius (Setup Step 24) This feature allows the thermostat to display temperature in Fahrenheit or Celsius.
Comfort Recovery (Setup Step 25)
With Comfort Recovery on, the thermostat will attempt to reach the OCCUPIED 1 setpoint temperature at the exact time programmed into the thermostat. Comfort Recovery, only works when the thermostat enters the OCCUPIED 1 from the UNOCCUPIED. For example, if OCCUPIED 1 is set for 6am at 72°F heating and 75°F cooling, the thermostat will turn the system on before 6am in an effort to bring the temperature to its correct setting at exactly 6am. The thermostat learns from experience, how early to turn on, so please allow 4-8 days after a program change or after initial installation to give Comfort Recovery time to adjust. If used with a heat pump, electric strip heat will be disabled while Comfort Recovery is active.
Pre-Occupancy Fan Purge (Setup Step 26)
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 (0) means this feature is turned off.
Dry Contact Operation
Dry Contact Polarity (Setup Step 27) Open (Normally Open) – The dry contact is open until the connected device closes the circuit.
Closed (Normally Closed) – The dry contact is closed until the connected device opens the circuit.
Dry Contact Use (Setup Step 28)
Condensate Pan – If selected when the Dry Contact is active, the thermostat will lockout compressor terminal(s) and will appear on the display. Holiday – If Holiday is selected when the dry contact is active, the thermostat will be forced into HOLIDAY/ Unoccupied settings. FDD – If FDD is selected when the dry contact is active, will appear on the display. Occupied – If Occupied is selected when the dry contact is active, the thermostat will be forced into occupied settings.
Skyport Cloud Services
(Setup Step 29)
If set to ON, the thermostat may communicate and receive data from the Skyport Cloud Services.
Local API (Setup Step 30)
Turning on the local API allows 3rd party software to interface with the thermostat such as a home automation system.
NOTE: It is permissable to enable both Skyport and the local API at the same time.
Available Modes (Setup Step 31)
This setup step may restrict the use of this thermostat to: Heat only or, Cool only, or Heat and Cool, or Auto changeover operation.
Show Clock (Setup Step 32) This setup step will allow for removal of the clock and day of the week from the display. OFF removes the time and day from the display.
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 WARMER and COOLER buttons together, for two seconds.The 
icon will appear on the display, then release the buttons.
To unlock the keypad, press and hold the MODE button. While holding the MODE button, press the WARMER and COOLER buttons together, for two seconds. The icon will disappear from the display, then release the buttons.
Programming a Daily Schedule
Programming a Daily Schedule To enter Time Period Programming screens, Press and hold MODE and UP until the scrolling prompt appears.
Select the number of Occupied time periods – Press the Warmer or Cooler buttons to choose the maximum number (up to 3 maximum) of Occupied time periods in a day. Select the Mode for the Occupied period – Press the Warmer or Cooler buttons to choose the mode for the occupied period. The choices are: Off, Heat only, Cool only and AUTO changeover. Adjust the Occupied Cool Setpoint – Press the Warmer or Cooler buttons to adjust the Cooling setpoint for comfort. Adjust the Occupied Heat Setpoint – Press the Warmer or Cooler buttons to adjust the Heating setpoint for comfort. Set the Unoccupied Mode – Press the Warmer or Cooler buttons to choose the mode for the Unoccupied period. The thermostat is in Unoccupied when the Time Period Schedule is running and there is not an active Occupied period. The choices are: Off, Heat only, Cool only and AUTO changeover. Adjust the Unoccupied Cool Setpoint – Press the Warmer or Cooler buttons to adjust the Cooling setpoint for times when the thermostat is in Unoccupied.
Continued Adjust the Unoccupied Heat Setpoint – Press the Warmer or Cooler button to adjust the Heating setpoint for times when the thermostat is in Unoccupied. The following steps determine when the Occupied period(s) will be active. Enable Occupied 1 – Press the Warmer or Cooler button to enable (On) or to disable (Off) Occupied 1 on Monday. Adjust the Start Time for Occupied 1 – Press the Warmer or Cooler button to adjust the start time for Occupied 1 on Monday. Adjust the Stop Time for Occupied 1 “ Press the Warmer or Cooler button to adjust the stop time for Occupied 1 on Monday. Upon pressing MODE after the above step; you will be prompted to Save and Exit or Copy this Occupied schedule to another day. To save and exit – Press the MODE and WARMER button.To Copy Monday’s settings/schedule to Tuesday – Press Up and then MODE. Press MODE again to copy the Monday Settings/schedule to subsequent days. To Program Another Day – Press MODE and then press the WARMER/COOLER button to select the day to program. Repeat the above steps for each day you would like to program.Press and hold the MODE/WARMER Buttons to exit Time Period Programming at any time.
Deadband Operation
Controls up to two Heat and two Cool stages. The 1st Stage of heat or cool is turned on when: (A) The temperature spread from the setpoint is equal to or greater than: the setpoint plus the 1st stage deadband. This 1st stage dead-band is adjustable from 1-6 degrees and the default is two degrees. The 2nd Stage of heat or cool is turned on when:
- The 1st Stage has been on for a minimum of two minutes (default setting). AND
- The temperature spread from the setpoint is equal to or greater than: the setpoint plus the 1st stage deadband, plus the 2nd stage deadband. This 2nd stage deadband is adjustable from 0 – 10 degrees.
Turning on the Time Period Program
Pressing the MODE button should cycle through OFF, then the available modes (setup step #31) then Program ON. Note that this sequence may be restricted due to settings on the Skyport website. The thermostat can be configured to be non-programmable which will keep Program ON from appearing in the MODE sequence. The thermostat can also be configured to force the program to always be running so the MODE button will have no effect. This last setting is desirable in many commercial installations to keep users from changing to manual control and negating the energy savings possible when running the program.
Emergency Heat
Only available if you have a Heat Pump installed. To initiate the Emergency Heat feature, press the OVERRIDE button. While holding the OVERRIDE button press the UP button, for two seconds. The display will read ‘EM HEAT’ (Emergency Heat).
During Emergency Heat operation the thermostat will turn on the fan and the Aux strip heat when there is a demand for heat. Also during Emergency Heat, heatpump operation will be unavailable.
Exit Emergency Heat
Follow the same steps as entering Emergency Heat by pressing the OVERRIDE and UP buttons, for two seconds. During Emergency Heat, only OFF and HEAT modes are available by pressing the MODE button.
Calibration
Under normal circumstances it will not be necessary to adjust the calibration of the temperature sensor. If calibration is required, please contact a trained HVAC technician to correctly perform the following procedure.
Factory Defaults
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. Any information entered prior to this reset will be permanently lost.
You now have the option of restoring the factory settings to just Wi-Fi (Wi-Fi), or just the thermostat (STAT), or both the thermostat and Wi-Fi (ALL).C. Select one of the above options using the Up or Down buttons. Press OVERRIDE for 2 seconds to restore the factory settings.
After factory settings are restored, the thermostat display will return to the screen.
To return to normal operation; Press the MODE button twice.
Advanced Setup Table
| Step# | Description | Pg# | Range | FD |
| 1 | Set Clock | 18 | 12A – 12A | |
| 2 | Set Day of the Week | 18 | Monday – Sunday | |
| 3 | Backlight | 19 | On, Off, 6pm-6am | Off |
| 4 | Night Dimmer | 19 | On/Off | Off |
| 5 | Night Dimmer Start Time | 19 | 12A – 12A | 8:00PM |
| 6 | Night Dimmer Stop Time | 19 | 12A – 12A | 6:00AM |
| 7 | Fan On or Fan Auto | 19 | Fan, Fan Auto | Fan Auto |
| 8 | Setpoint Limits | 20 | On, Off | Off |
| 9 | Maximum Heat Setpoint Limit | 20 | 35 – 99 Degrees | 74 |
| 10 | Minimum Cool Setpoint Limit | 20 | 35 – 99 Degrees | 70 |
| 11 | Current Service Filter Runtime Hours | 21 | 0 – 1999 Hours | 0 |
| 12 | Current Service Filter Calendar Days | 21 | 0 – 720 Days | 0 |
| 13 | Set Service Filter Runtime Hours | 21 | 0-1999 Hours | 0 |
| 14 | Set Service Filter Calendar Days | 21 | 0 – 720 Days | 0 |
| 15 | Cycles Per Hour | 22 | No Limit, 2, 3, 4, 5, 6 | 6 |
| 16 | Compressor Minimum Off Minutes | 22 | 0, 3, 5 Minutes | 5 |
| 17 | Min. Heat/Cool Setpoint Difference | 22 | 0 – 6 | 2 |
| 18 | 1st Stage Deadband | 23 | 1 – 6 Degrees | 2 |
| 19 | Second Stage Deadband | 23 | 0 – 10 Degrees | 2 |
| 20 | Minutes Between 1st and 2nd Stage | 23 | 0 – 60 Minutes | 2 |
| 21 | 2nd Stage Turnoff Point | 23 | Deadband, Setpoint | Deadband |
| 22 | Fan Off Delay | 24 | 0, 120 Seconds | 0 |
| 23 | Maximum Override Time | 24 | 1, 2, 3 or 4 hours | 4 |
| 24 | F / C | 24 | Fahrenheit (F), or Celsius C | F |
| 25 | Comfort Recovery | 25 | On, Off | Off |
| 26 | Pre-Occupancy Fan Purge | 25 | 0 – 3 Hours in 15 minute
increments, 0 + Off |
0 |
| 27 | Dry Contact Polarity | 26 | Open, Closed | Open |
| 28 | Dry Contact Use | 26 | Condensate Pan, Holiday,
FDD, Occupied |
Holiday |
| 29 | Skyport | 27 | On, Off | On |
| 30 | Local API | 27 | On, Off | Off |
| 31 | Available Modes | 27 | Heat, Cool, Heat or Cool, Auto | Auto |
| 32 | Show Clock | 27 | On, Off | On |
TO ENTER MENUS…… BUTTON PRESS
- Setup Steps……………… MODE & OVERRIDE for 5 sec.
- Time Schedule…………. MODE & UP for 2 seconds
- Emergency Heat………. UP & OVERRIDE for 2 seconds
TO ENTER MENUS……BUTTON PRESS
- Lockout Buttons………..MODE, UP & DOWN for 2 sec.
- Calibration…………………MODE & DOWN for 2 sec., then MODE
- Wireless Setup…………OVERRIDE for 5 Seconds
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. THIS WARRANTY DOES NOT INCLUDE LABOR OR OTHER COSTS incurred for diagnosing, repairing, removing, installing, shipping, servicing or handling of either defective parts or replacement parts. Such costs may be covered by a separate warranty provided by the installer. THIS WARRANTY APPLIES ONLY TO PRODUCTS IN THEIR ORIGINAL INSTALLATION LOCATION AND BECOMES VOID UPON REINSTALLATION. LIMITATIONS OF WARRANTIES – ALL IMPLIED WARRANTIES (INCLUDING IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY) ARE HEREBY LIMITED IN DURATION TO THE PERIOD FOR WHICH THE LIMITED WARRANTY IS GIVEN. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE MAY NOT APPLY TO YOU. THE EXPRESSED WARRANTIES MADE IN THIS WARRANTY ARE EXCLUSIVE AND MAY NOT BE ALTERED, ENLARGED, OR CHANGED BY ANY DISTRIBUTOR, DEALER, OR OTHER PERSON WHATSOEVER. ALL WORK UNDER THE TERMS OF THIS WARRANTY SHALL BE PERFORMED DURING NORMAL WORKING HOURS. ALL REPLACEMENT PARTS, WHETHER NEW OR REMANUFACTURED, ASSUME AS THEIR WARRANTY PERIOD ONLY THE REMAINING TIME PERIOD OF THIS WARRANTY. THE
THE MANUFACTURER WILL NOT BE RESPONSIBLE FOR
- Normal maintenance as outlined in the installation and servicing instructions or owner’s manual, including filter cleaning and/or replacement and lubrication.
- Damage or repairs required as a consequence of faulty installation, misapplication, abuse, improper servicing, unauthorized alteration or improper
- Failure to start due to voltage conditions, blown fuses, open circuit breakers or other damages due to the inadequacy or interruption of electrical service.
- Damage as a result of floods, winds, fires, lightning, accidents, corrosive environments or other conditions beyond the control of the Manufacturer.
- Parts not supplied or designated by the Manufacturer, or damages resulting from their use. 6. Manufacturer products installed outside the continental S.A., Alaska, Hawaii, and Canada.
- Electricity or fuel costs or increases in electricity or fuel costs for any reason whatsoever including additional or unusual use of supplemental electric heat.
- ANY SPECIAL INDIRECT OR CONSEQUENTIAL PROPERTY OR COMMERCIAL DAMAGE OF ANY NATURE Some states do not allow the exclusion of incidental or consequential damages, so the above may not apply to you.
This warranty gives you specific legal rights and you may also have other rights which may vary from state to state.
Reference
Download Manual:
Venstar T2050 Programmable Digital THERMOSTAT Owner’s Guide
OTHER MANUALS
Venstar T2050 Programmable Digital THERMOSTAT Quick Start Guide
Venstar T2050 Programmable Digital THERMOSTAT Product Specifications Guide
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