Venstar T3950-IAQ Smart Digital Thermostats Owner Manual

Venstar T3950-IAQ Smart Digital Thermostats

Get To Know Your Thermostat

Display Features

Note : You may see 2nd/3rd illuminated even though you don’t have actual multistage equipment. This has NO EFFECT on your primary heating or cooling – it will run whether or not you see 2nd/3rd on the display

1. Clock with Day of the Week—Indicates the current time and day. This clock is also used to program the time period schedules.
2. Outdoor icon—Indicates the temperature displayed is from the
   optional outdoor sensor.
3. Room Temperature Display—Indicates the current room temperature and displays the outdoor temperature when selected.
4. Mode Indicators Selects the operational mode of the equipment.
   HEAT – Indicates the heating mode.
   COOL – Indicates the air conditioning mode.*
   HEAT & COOL – Indicates the system will automatically change-over between heat and cool modes as the temperature varies.
   OFF – Indicates heating and cooling are turned off.
5. The scrolling display will be used to help you easily navigate
   the setup screens in the thermostat.
   * COOL will blink when cooling is running for dehumidification
6. 2nd and 3rd Stage icons
   Indicates what stage of cooling or heating is currently energized.
7. Setup Step icon
   Indicates the step number when in advanced setup.
8. Morning, Day, Evening & Night icons Indicate the day part of the time period program. is in setup mode.
9. 9 Desired Set Temperature Indicates desired room temperature(s). Also displays the highest and lowest temperatures for the day.
10. 10 Wi-Fi icons One dot will always be present and the full wifi icon will appear when connected to the local access point. The dot will blink when the thermostat is reaching the skyport server.
    icon
11. Press MODE, WARMER and COOLER buttons together to toggle the keylock.
12. 12 Fan On icon
    Indicates constant, continuous fan operation.
    When Fan On is not lit – indicates the fan will only operate when necessary to heat or to cool. If Fan On is blinking, the fan is running because Air Patrol is circulating the air attempting to improve the quality
13. 13 AuxHeat icon
    Indicates 2nd stage electric strip heat is being used when the thermostat is programmed for Heat Pump operation. Only the Aux icon will appear during Cool to Dehumidify to indicate Reheat operation.
14. Hi and Lo icons
    Indicates the highest/lowest daily values for outdoor temp, wired/wireless remote temp, and indoor humidity.
    *The high/low values reset at midnight

How to use your thermostat

During Setup and Programming
Press the WARMER or COOLER buttons to modify the selection.
Press the MODE button to advance and confirm through the setup steps.

Selecting the Heat or Cool Mode
Select mode by pressing the MODE button.
HEAT – Only the heating operation will
be controlled by the thermostat in this mode.
COOL – Only the cooling operation will be controlled by the thermostat in this mode.
AUTO – Auto-Changeover will automatically select heat or cool based on room temperature demand.
OFF – OFF indicates both heating and air conditioning systems are turned off.

Selecting your desired temperature
HEAT OR COOL MODE – Pressing the WARMER or COOLER buttons
in Heat or Cool mode will adjust only the heat or cool setpoints individually displayed.
AUTO-CHANGEOVER MODE – Pressing the WARMER or COOLER buttons in Auto mode will adjust both the heat and cool setpoints simultaneously. To adjust 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.

Using the Fan Button
FAN ON indicates constant fan operation. Pressing the FAN button toggles this feature. If you don’t see FAN ON, the fan is in auto mode
and will only turn on during a heat or cool demand. If FAN ON is blinking, the fan is running because of Air Patrol. The FAN button not have any effect when FAN ON is blinking

Viewing Air Quality and Temperature Values
Press the SENSOR button to view the internal sensors and any optional remote sensors. The screens may appear as follows. Press MODE to advance to the next sensor, press SENSORS to exit this function.

Descriptions of the IAQ readings are discussed further in the Air Patrol section on page 12. Any values that are invalid or unavailable with appear as dashes.

Viewing only connected wifi or VenNet sensor Values
You may also view connected wifi and VenNet sensor values after pressing the ACCESSORY STATUS followed by a COOLER button. Use MODE button to cycle between readings. Note that battery strength of the battery-powered sensors can be viewed on these screens. Press ACCESSORY STATUS again to return to normal operation.

Viewing and adjusting humidity Values
Press the HUMIDITY button. The current indoor relative humidity and daily min/max values are shown. If you wish to alter either the humidification
or dehumidification setpoints, press MODE to cycle between screens and WARMER/COOLER to adjust the settings. Press HUMIDITY again to return to normal operation.

Setting the Clock and Day

Not available when connected to the Skyport server
Press the SET CLOCK button. Adjust the clock using the WARMER or COOLER buttons. Press MODE to advance to the day setting. Adjust the day using the WARMER or COOLER buttons. Press the SET CLOCK button to confirm settings.
TIP: To adjust the time by hours press and hold the FAN button while pressing the WARMER or COOLER buttons.

Turning the schedule ON/OFF
Press/release OFF | RUN HOLD TO SET to change between PROGRAM ON and PROG OFF.

If you are unable to select PROGRAM ON, setup step #1 is most likely NON-PROGRAM (non-programmable).

Programming a Schedule

• Press/hold OFF | RUN HOLD TO SET until you see SET PROGRAM, followed by some brief instructions.
• Press the MODE button to start entering a schedule.
• Press the WARMER or COOLER buttons to make changes.
• Press the MODE button to advance to the next step.

This thermostat features four programmable time periods per 24-hour day:
Morning, Day, Evening, and Night. The start time for each time period is adjustable. The stop time for each time period is the start time for the next period. Each time period, or day part may be individually disabled. When selecting a Mode for any daypart, options are OFF, HEAT, COOL, HEAT and COOL. These may be limited by the selection in setup step #2, AVAILABLE MODES.
Select the Day to Program – Press the WARMER or COOLER to select the desired Day or Week Part in the case of 5-2 (weekday – weekend) programming.
Enable/Disable Morning Period – Press the WARMER or COOLER to select ON or OFF. If the default ON is selected, then the Morning period will run complete with the Mode and Set Points selected. If OFF is selected then the Morning day part will be skipped and the thermostat will use the next day part that is enabled.

Select Morning Mode – Press the WARMER or COOLER to select the desired mode. Press MODE to advance to the next step.
Select Morning Start Time – Press the WARMER or COOLER buttons to adjust the time of day desired. Press MODE to advance to the next step.
Select Morning Cool Setpoint – Press the WARMER or COOLER buttons to adjust the cool setpoint desired. This step will appear if Cool or Heat and Cool was selected in the step where the Morning mode is specified. Press MODE to advance to the next step.
Select Morning Heat Setpoint – Press the WARMER or COOLER buttons to adjust the heat setpoint desired. This step will appear if Heat or Auto Mode was selected in the step where the Morning mode is specified. Press MODE to advance to the next step.
Repeat Enable, Mode, Start Time and Setpoint programming for Day, Evening, and Night.
“Copy Current Day to Next Day” is available – Press the UP button to Copy the current day’s program to the next day. Press Mode again to continue copying the following day.

Air Patrol

Air Patrol continually samples the Indoor Air Quality (IAQ) at the thermostat. When Air Patrol is enabled and the Indoor Air Quality drops into the selected category:

• The fan will turn on to circulate the air through the HVAC’s filtration system with a 5 minute minimum runtime
• The fan will continue to operate until:
  • The Indoor Air Quality improves, OR
  • The fan runtime reaches its selected maximum runtime per hour, the Air Patrol Duration
• Additionally, the thermostat’s AUX output will be asserted to control 3rd party devices such as ionizers or extra filtration*

The values for Indoor Air Quality categories are: Setup & Configuration

Air Patrol is configured from Skyweb, Venstar’s Skyport web application. Select an Explorer-IAQ thermostat to configure the Air Patrol settings.

1. Select the “3 vertical dots” in the top right corner.
2. Select “Settings” at the bottom of the drop-down menu.
3. Select “Indoor Air Quality” in the shaded area of Settings.
4. Enable Air Patrol. When enabled the Air Patrol. Threshold and Duration settings will appear.
5. Set the Air Patrol Threshold at which Air Patrol will turn on the HVAC fan/filtration and assert an auxiliary output.
6. Set the Air Patrol Duration. This is the maximum the fan is allowed to run per hour. If the Air Quality does not reach the next better IAQ level in this allotted time, it will stop the fan and resume next hour. If it is set to 60 minutes per hour, the fan will continue to run until the IAQ level reaches the next level above the selected threshold.
7. Send this Air Patrol configuration to the thermostat.

 

VenNet Sensors

Pairing a Sensor

1. Press and hold the PAIR button on the sensor for 1 second.
   • Upon release of the PAIR button, the LED will flash twice.
   • The sensor will remain in its pairing state for 1 minute.
2. Move the sensor to within 3 inches of the thermostat.
3. The thermostat will recognize the sensor and display NEW SENSOR IS DETECTED.
   Press WARMER to pair the sensor to the thermostat.
   • The thermostat will display PAIRING.
   • Pressing COOLER will remove the message from the display and stop the pairing procedure on the thermostat.
4. Once pairing is completed, you must select
   the type of sensor, Remote or Outdoor.
   • At this point, the thermostat will display REMOTE SENSOR TYPE,
     press WARMER or COOLER to change, press MODE to accept.
     I. Pressing WARMER or COOLER will allow you to choose REMOTE SENSOR or OUTDOOR SENSOR.
     II. Press FAN to accept the type of sensor chosen.
     III. The thermostat will display SENSOR # IS PAIRED twice and return to the Home Screen.
5. If set as REMOTE and you wish to use the sensor for temperature control, alter setup steps 46 and 47 as necessary.
6. You may use Skyport to assign a logical name to the sensor.

Un-Pairing any wireless Sensor

1. Press the ACCESSORY STATUS button
2. Press the COOLER button to view
   all wireless sensors, either VenNet
   or wifi sensors will be shown.
3. Press WARMER/COOLER buttons to select the sensor to be un-paired
4. Press/hold FAN button for 2 seconds
5. Press WARMER button to un-pair the VenNet/Wifi sensor or press COOLER button to make no changes
6. Press the ACCESSORY STATUS button to return to normal operation
7. You may use Skyport to assign a logical name to the sensor. It is advisable to name the sensor before pairing additional sensors

Returning a Sensor to Factory Default settings
If you are pairing the sensor to a new thermostat, you will need to remove the previously paired thermostat from the sensor’s memory. You can use the unpairing process above, or you may find it easier
to simply clear the sensor’s memory and bring it back to factory default settings.

To do so: 

1. Press and hold the sensor’s PAIR button for up to 5 seconds.
2. Once the sensor has been erased, the sensor’s LED will flash twice and return to pairing mode.
3. If not paired to a thermostat within 1 minute, the sensor will return to sleep mode.

Setup Steps

How to Change Settings in the Setup Screens
To enter Advanced Setup, press the SETUP button, then press MODE. Use the WARMER or COOLER buttons to adjust the value of your selection. Press MODE to advance to the next setup step. Press SETUP again to leave the setup screens.

*Some of the following settings are usually adjusted by the installer. It is acceptable to have any of these steps be adjusted by the user as well. Contact Venstar if you have further questions on the meaning of these settings

Program Mode (Setup Step 1)
This thermostat may be configured to be programmable or nonprogrammable.
7-Day Program – Allows all seven days to be programmed independently.
Non-Program – No advanced time period programming available.

Selecting Your Available Modes (Setup Step 2)
Auto-Changeover – Allows the thermostat to turn on heating or cooling based on room temperature demand. Also allows the manual selection of HEAT only or COOL only and OFF.
Heat and Cool – Allows the thermostat to turn on heating or cooling depending on which one has been manually selected. Auto-Changeover is not available when this is selected.
Heat Only – Allows the thermostat to only turn on HEAT or OFF modes.
Cool Only – Allows the thermostat to only turn on COOL or OFF modes.

Press the SETUP button, then press MODE repeatedly until the desired setup step appears. Use the WARMER or COOLER buttons to make selection. Press MODE to advance to the next step. Press/hold MODE to go backwards to prior steps. Press SETUP to leave the setup screens.

Backlight (Setup Steps 3-8)
Backlight (Setup Step 3)
Off – Backlight turns on with any button press and turns off after 8 seconds.
On – Backlight is on continuously.

Backlight Intensity Level (Setup Step 4)
The backlight can be adjusted between Off and seven levels of brightness.

Night Dimmer (Setup Step 5)
Selecting On allows for automatic dimming of the display at night.

Night Dimmer Brightness (Setup Step 6)
Off through seven levels of brightness

Night Dimmer Start Time (Setup Step 7)
12:00 am to 12:00 am

Night Dimmer Stop Time (Setup Step 8)
12:00 am to 12:00 am

Resetting Service Filter (Setup Steps 9, 10)
These will show how long your fan has been running in hours and days. View both of these steps and press FAN while viewing to reset the counter to 0. This should clear the SERVICE FILTER message.

Current Service Filter Runtime Hours (Setup Step 9)
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 FAN to reset.

Current Service Filter Calendar Days (Setup Step 10)
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 FAN to reset.

Press the SETUP button, then press MODE repeatedly until the desired setup step appears. Use the WARMER or COOLER buttons to make selection. Press MODE to advance to the next step. Press/hold MODE to go backwards to prior steps. Press SETUP to leave the setup screens.

Heating and Cooling System Runtime – Energy Watch (Setup Steps 11-15)

Current Heat Runtime Hours (Setup Step 11)
This counter keeps track of the number of hours the system has run in Heating. Press FAN to reset.
Current Aux Strip Heat Runtime Hours (Setup Step 12)
This counter keeps track of the number of hours the system has run in Auxiliary Heating. This setup step is only available when the thermostat jumpers are configured for Heat Pump and Electric Heat. Press FAN to reset.

Current Cool Runtime Hours (Setup Step 13)
This counter displays the number of hours the system has run in Cooling. Press FAN to reset.

Current UV Lamp Calendar Days (Setup Step 14)
This counter displays the total number of calendar days that have elapsed to help the user track UV lamp runtime. Press FAN to reset.

Current Humidifier Calendar Days (Setup Step 15)
This counter displays the total number of calendar days that have elapsed to help the user track the Humidifier runtime. Press FAN to reset.

Press the SETUP button, then press MODE repeatedly until the desired setup step appears. Use the WARMER or COOLER buttons to make selection. Press MODE to advance to the next step. Press/hold MODE to go backwards to prior steps. Press SETUP to leave the setup screens.

These setup steps allow the user to monitor equipment runtimes and program service alerts. Service alerts are displayed in the scrolling marquee.

Press and hold FAN to clear service alert messages from the scrolling marquee.

Service Filter Runtime (Setup Steps 16-17)
Set Service Filter Runtime Hours (Setup Step 16) –
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 17) –
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.

UV Lamp Runtime (Setup Step 18)
Set UV Lamp Calendar Days (Setup Step 18) – This timer allows the user to
specify the number of calendar days the UV Lamp will operate before the
“Replace UV Lamp”alert will be displayed. Press COOLER continuously until OFF appears to disable this alert.

Humidifier Runtime (Setup Step 19)
Set Humidifier Calendar Days (Setup Step 19) – This timer allows the user
to specify the number of calendar days the Humidifier will run before the
“Service Humidifier” alert will be displayed. Press COOLER continuously until OFF appears to disable this alert.

Language (Setup Step 20)
Setup step instructions on the scrolling display can be set for English, Spanish, or French.

Setpoint Limits (Setup Step 21)
When this feature is set to ON, the heat and cool setpoints can be restricted to preset levels, set in steps 22 and 23.
Maximum Heat Setpoint (Setup Step 22) (35˚ – 99˚).
Minimum Cool Setpoint (Setup Step 23) (35˚ – 99˚).

Cycles Per Hour* (Setup Step 24)
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.
Compressor Minimum Off Minutes* (Setup Step 25)
This feature allows the user to set a minimum off time for the compressor. Settings are 5 mins., 3 mins., or 0 mins.
Minimum Heat/Cool Setpoint Difference* (Setup Step 26)
This feature allows the user to set the minimum gap between Heat and Cool setpoints in AUTO mode. Select from 0 to 6. If setup step 2 is not set for AUTO-CHANGEOVER, this step will not appear.
Number of Heat Stages* (Setup Step 27)
This setting assures proper stage callouts on the thermostat display
for non-heat pump applications.
Number of Cool Stages* (Setup Step 28)
This setting assures proper stage callouts on the thermostat display
for non-heat pump applications.

Number of Compressor Stages* (Setup Step 29)
This feature is for heat pump applications only.
This step configures the thermostat to control 1 or 2 compressor stages when configured for a heat pump.
NOTE: When step 59 (Dual Fuel) is set to ON, this step will not appear and Compressor Stages will automatically be set to 2.

Number of Aux Stages* (Setup Step 30)
This feature is for heat pump applications only.
This step configures the thermostat to control any installed electric aux heat. (0-2 stages)
*Some of the following settings are usually adjusted by the installer. It is acceptable to have any of these steps be adjusted by the user as well. Contact Venstar if you have further questions on the meaning of these settings

Deadband Settings* (Setup Steps 31 – 40)
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 31) – Specifies the minimum 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 68˚ and the 1st Stage deadband is set to 2 degrees, the room temperature will need to reach 66˚ before the heat turns on.
2nd Stage Deadband (Setup Step 32) – Specifies the additional minimum temperature difference after the first stage turns on before the second stage is activated. (0˚ – 10˚)
3rd Stage Deadband (Setup Step 33) – Specifies the additional minimum temperature difference after the second stage turns on before the third stage is activated. (0˚ – 10˚)
4th Stage Deadband (Setup Step 34) – (Two Stage heat pump only) – Specifies the additional minimum temperature difference after the third stage turns on before the final stage of strip heat is activated. (0˚ – 10˚)
Minutes Between 1st and 2nd Stage (Setup Step 35) – Specifies the minimum time (in minutes) after the first stage must run before the second stage can turn on.
Minutes Between 2nd and 3rd Stage (Setup Step 36) – Specifies the minimum time (in minutes) after the second stage must run before the third stage can turn on.
Minutes Between 3rd and 4th Stage (Setup Step 37) – Specifies the minimum time (in minutes) after the third stage must run before the final stage can turn on.

*Some of the following settings are usually adjusted by the installer. It is acceptable to have any of these steps be adjusted by the user as well. Contact Venstar if you have further questions on the meaning of these settings

Second Stage on Turnoff Point (Setup Step 38) – 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.
Third Stage Turnoff Point (Setup Step 39) – Specifies whether third stage will turn off at second stage deadband or remain on until the room temperature demand is satisfied. Choose between Deadband or Setpoint.
Fourth Stage Turnoff Point (Setup Step 40) – Specifies whether the fourth stage will turn off at third stage deadband or remain on until the room temperature demand is satisfied. Choose between Deadband or Setpoint.

Programmable Fan (Setup Steps 41-44)
Fan Program (Setup Step 41)
This feature allows the fan to be programmed to turn on automatically for a specified amount of time during the day. If this feature is set to ON, the next three steps will appear.

Minutes of Fan Runtime Per Hour (Setup Step 42)
This setting specifies the number of minutes (5 – 60, in increments of 5) that the fan will run at the top of each hour.

Fan Program Start Time (Setup Step 43)
This setting specifies the hour of each day when the programmable fan feature will start.

Fan Program Stop Time (Setup Step 44)
This setting specifies the hour of each day when the programmable fan feature will stop.
NOTE: Setting the Stop Hour equal to the Start Hour will cause the fan to run 24 hours a day.

Wired Sensor Type* (Setup Step 45)
Specifies the use of the connected, wired sensor. The choices are: Remote, Supply, and Outdoor. Only the remote option allows control of the sensor.
Control to Temp Source* (Setup Step 46)
This feature allows the user to specify which temperature sensor source the thermostat will use to measure room temperature.
Thermostat: uses the internal thermostat sensor only.

Wired Remote: uses the attached wired remote sensors.*
Wireless Remote uses WiFi or VenNet sensor specified in step #47.

Average of Wireless Remotes: combines and averages all paired WiFi or VenNet sensors.
Average of Thermostat and Wired Remote: averages internal and attached wired remote sensor*.

Average all Sensors: averages internal, any attached wired or paired wireless sensors.
* These options only appear if step #45 (Wired Sensor Type) set to “remote”
NOTE: If a remote sensor is being used, the degree icon on the large room
the temperature display will blink.

Wireless Remote to Use* (Setup Step 47)
Specifies which paired WiFi or VenNet sensor to use for temperature control. This step only appears if step #46 (Control to Temp Source) set to “Wireless Remote”.

Humidity and Dehumidity* (Setup Steps 48-54)
Humidity Only With Heat (Setup Step 48)
When this step is set to ON, Humidity will not run without a demand for Heat.

Fan With Humidify (Setup Step 49)
Specifies if the fan should be turned on with a demand for Humidity.
(This step will only appear if step 48 is set to OFF.)

Fan with Dehumidify (Set up Step 50)
Specifies if the fan should be turned on with a demand for Dehumidify.
(This step might not appear unless Air Patrol is turned off in step 79)

Humidity Setpoints (Setup Step 51)
Specifies whether the Humidity setpoint should be entered by the user (MANUAL) or determined automatically by outdoor temperature (AUTO). An outdoor temperature sensor is required for the AUTO setting. If the outdoor temperature sensor stops reading while this step is set to AUTO, the Humidity setpoint will revert automatically to a setting of 15 percent.

Cool To Dehumidify (Setup Step 52)
Specifies if the cooling equipment is allowed to turn on exclusively to lower room humidity.
(If set to OFF the following two steps will not appear.)

Max Dehum Overcool (Setup Step 53)
Specifies how many degrees below the Cool setpoint the air conditioning will run to satisfy a Cool to Dehumidify demand. (0˚ – 20˚)

Reheat Operation With Cool To Dehumidify (Setup Step 54)
Specifies if electric strip heat is allowed to turn on during a Cool to Dehumidify demand to help maintain desired room temperature. This step is not available if Electric Heat is not present.

Lockout Heat Pump on Outdoor Temp* (Setup Steps 55 – 56)
This feature stops the heat pump from running below a specified outdoor temperature, where the heat pump has become inefficient or could damage equipment. A wired outdoor sensor must be used for this feature to work.

Lockout Heat Pump With Outdoor Temp (Setup Step 55)
When set to ON, the Heat Pump Lockout feature is enabled. When set to OFF, the
heat pump will stage normally.

Heat Pump Lockout Temp (Setup Step 56)
This step allows the user to set the temperature at which the heat pump will be
locked out. Adjustable from -20 to 75 degrees Fahrenheit in five degree increments.

Auxiliary Heat Lockout* (Setup Steps 57 – 58)
This feature allows the auxiliary heat for a heat pump (W2 and W3) to be locked out above a specific outdoor temperature. These steps will only appear if the dip switch settings G/EL – HP set to HP and GAS – ELEC set to ELEC. A wired outdoor sensor must be used for this feature to work.

Lockout Aux Heat With Outdoor Temp (Setup Step 57)
When set to ON, the Aux Heat Lockout feature is enabled. When set to OFF, Auxiliary
Heat will stage normally.

Aux Heat Lockout Temp (Setup Step 58)
(20˚ – 75˚) This step allows the user to set the temperature at which Auxiliary Heat
will be locked out. Adjustable from 20 to 75 degrees Fahrenheit.
NOTE: This temperature setting cannot be lower than 5 degrees above the Heat Pump Lockout temperature.

Dual Fuel* (Setup Steps 59 – 61)
This feature is for heat pump applications only. Steps 59-62 will only appear if the dip switch settings G/EL – HP set to HP and GAS – ELEC set to GAS.

Dual Fuel On, Off, (Setup Step 59) – On – Tells the thermostat an outdoor temperature or a demand for third stage heat will be used to stop running the heat pump and only run a fossil fuel source of heat.
NOTE: Once the change to fossil fuel is made, the heat demand must finish with fossil fuel. Additional heat demands within 10 minutes will also use fossil fuel, regardless of outdoor temperature.
Setup steps 61-63 will only appear if step 60 is set to ON.
Dual Fuel Changeover on Outdoor Temp (setup step 60) – ON: the change from Heat Pump to a fossil fuel source of heat will be based on outdoor temperature. (a local outdoor sensor is required for ‘ON’)
OFF: Heat Pump heating will be terminated when there is a demand for third stage heat and a switch to fossil fuel will be made.
Dual Fuel Balance Point (setup step 61) – (0˚ – 60˚ ) Specifies the outdoor temperature at which the heat pump will cease operating and a fossil fuel source of heat is used.

Fan Off Delay in Seconds* (Setup Step 62)
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.

Fahrenheit or Celsius (Setup Step 63)
This feature allows the thermostat to display temperature in Fahrenheit or Celsius.

Aux Output Polarity* (Setup Step 64)
Open (Normally Open) means no voltage is sent to the AUX output when there is
no Air Patrol quality issue.
Closed (Normally Closed) means voltage is sent to the AUX output when there is
no Air Patrol quality issue.

Smart Recovery (Setup Step 65)
Smart Recovery turns on the heat or cool before the Morning start time to bring the room temperature to the Morning setpoint at the start of the Morning time period. Please allow 4-8 days for Smart Recovery time to adjust. When used with a heat pump, electric strip heat will be disabled while Smart Recovery is active.
Dry Contact Operation* (Setup Steps 66-67)
Dry Contact Polarity (setup Step 66)

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.

Condensate Dry Contact Use (Setup Step 67)
CONDENSATE – If CONDENSATE is selected, when the dry contact is active, the thermostat will lockout the compressor terminal(s) and “CONDENSATE PAN OVERFLOW” will appear on the display.
VACATION – If VACATION is selected when the dry contact is active, the thermostat will be forced into AWAY/unoccupied settings.
FDD – If FDD is selected when the dry contact is active, the scrolling display will read
“Equipment fault”. This error message will disappear when the Dry Contact is idle.

Humidity Output Polarity* (Setup Step 68)
Open (Normally Open) means no voltage is sent to the HUM output when there is no demand for humidity.
Closed (Normally Closed) means voltage is sent to the HUM output when there is no demand for humidity.

Dehumidify Output Polarity* (Setup Step 69)
Open (Normally Open) means no voltage is sent to the DEHUM output when there is no demand to dehumidify.
Closed (Normally Closed) means voltage is sent to the DEHUM output when there is no demand to dehumidify.

Dehumidify Only With Cooling (Setup Step 70)
When set to ON, Dehumidify will only turn on with a 1st stage cooling demand.
When set to OFF, Dehumidify will turn on at any time that the room humidity exceeds the dehumidification setpoint.

ADR* (Setup Step 71)
Controls whether you want the thermostat to possibly respond to signals from the utility provider. Select ON to allow this and to have steps 72-78 appear. For these steps to have effect, your utility provider must have an applicable program in your service area in which Skyport participates and your thermostat is enrolled in the program. Check with your provider for enrollment details.

ADR Action* (Setup Step 72)
Observe Setpoint Offsets – will offset the heat and cool setpoints by the amounts specified in setup steps 77 and 78
Observe Static Setpoints – will set the heat and cool setpoints to the values specified in setup steps 75 and 76

DISPLAY INDICATIONS WHEN AN ADR EVENT IS HAPPENING
After setting your desired values for use during an ADR event, the scrolling display will give a little information when an event is pending or active. For instance, when an ADR event has been sent to your thermostat, you might see ADR STARTS at 4:15 to notify you of a pending event. Once active, you might see ADR STOPS at 5:30.If you have configured a threshold for cost of energy past which you want to trigger an event, you will see PRICING EVENT on the display. When an event is active, you can press any of COOLER, WARMER or MODE buttons, followed by the WARMER to opt out of the event.

Event Max Cool Setpoint* (Setup Step 73)
Event Min Heat Setpoint* (Setup Step 74)
Specifies the range of allowable setpoint adjustments to be enforced when any ADR signal has been received from the utility. Since you might be paying more for energy while an event is active, you can impose tighter limits on setpoint ranges that are only enforced during the event.

Static Cool Setpoint* (Setup Step 75)
Static Heat Setpoint* (Setup Step 76)
Specifies the setpoints that will come into use during an event when the ADR ACTION is set to OBSERVE STATIC SETPOINTS

Cool Setpoint Offset*
(Setup Step 77) Heat Setpoint Offset* (Setup Step 78)
Specifies how much the current setpoints in effect prior to an event will be altered during an event when the ADR is set to OBSERVE SETPOINT OFFSETS. The heat setpoint can be adjusted by -1 to -15 degrees, cool setpoint by 1 to 15 degrees.

IAQ Air Patrol (Setup Step 79)
Select whether you want the Air Patrol features to be ENABLED or DISABLED. You may always view the IAQ value regardless of this setting.

Air Patrol on if IAQ exceeds MODERATE Quality (Setup Step 80)
This setting specifies at which IAQ category that Air Patrol actives, either MODERATE or POOR. This step only appears if Step #79 is set to ENABLED.

Air Patrol Fan on Minutes (Setup Step 81)
When IAQ value meets the level specified in Step #80, the indoor blower will run for the length of time specified in this step, 5 to 60 minutes. This step only appears if step #79 is set to enabled.

Auxiliary Output
The auxiliary output will become active whenever Air Patrol senses that the air quality has fallen to the level you specify in step #80.

Skyport* (Setup Step 82)
Set to ON to allow access to Skyport services or to OFF to not allow access to Skyport services. Visit venstar.com for more information.

Local API* (Setup Step 83)
Set to ON to allow third-party software to interface with your thermostat. Typically used with home automation set-ups.

Show Clock (Setup Step 84)
Select ON or OFF to have the time of day appear on the screen

Show IAQ (Setup Step 85)
Select ON or OFF to have IAQ measured levels of MODERATE or POOR show on the scrolling display
Press Fan To Clear All Messages (Setup Step 86)
This feature allows the user to clear all current error messages from the display.

Locking the Buttons

Locking/Unlocking the Buttons
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 5 seconds.
The Lock icon will appear on the display, then release the buttons.

To unlock the buttons, press and hold the MODE button. While holding the MODE button, press the WARMER and COOLER buttons together for 5 seconds.
The Lock icon will disappear from the display, then release the buttons.

Home/Away and Vacation Features

HOME/AWAY allows for one button press to bring in your stored away/vacation settings. When the away settings are active, AWAY will be shown on the scrolling display. You may exit and return to the last used comfort settings by pressing any button.

Skyport can also be used to switch between HOME and AWAY. The mobile app or web app will have a button that is labeled either HOME or AWAY, reflecting the current state of the thermostat. Pressing that button should instruct the thermostat to change to the desired home/away state.

To adjust the settings to be used when in away or vacation, press the VACATION button, followed by multiple presses of MODE button until VACATION/AWAY MODE appears on the scrolling display. Use UP/DOWN to choose the mode to be used while away. Press MODE again and enter desired cool and heat setpoints. When done, press VACATION to return to the main screen. Vacation and away use the same settings.
Note: If connected to Skyport, you may first see a reminder to use Skyport to adjust the vacation settings, although you may also do it locally at the thermostat.
Vacation feature when connected to skyport. Skyport allows you to select future dates/times when your vacation will start and end. After sending that to the thermostat, no action is required at the thermostat. At the appropriate date/time, the thermostat will bring in your vacation settings and show VACATION on the scrolling display. The thermostat will return to prior settings when the vacation period ends. If you happen to return early while vacation is still active, button presses will be ignored except for the VACATION button. Press VACATION, followed by MODE to terminate the active vacation and return to normal operation. There is no provision for terminating vacation via Skyport. If you anticipate a variable return time, use the HOME/AWAY feature instead.
Vacation feature when not connected to skyport. Press VACATION and MODE to set the number of vacation days (0-99). Press MODE to enter the away/vacation settings. Use UP/DOWN to choose the mode to be used while away. Press MODE again and enter desired cool and heat setpoints. When done, press VACATION to return to the main screen. At midnight, the thermostat will bring in your vacation settings and show VACATION on the scrolling display. The thermostat will return to prior settings at midnight after the # of vacation days you specified have passed.

Emergency Heat

Emergency Heat
The Emergency Heat function is only available if your thermostat is set to control a Heat Pump.

To initiate the Emergency Heat feature, Press the EMERGENCY HEAT button. During Emergency Heat operation the thermostat will turn on the fan and auxiliary stages of heat when there is a demand for heat. The compressor will not be turned on for either heating or cooling. To exit Emergency Heat, press the EMERGENCY HEAT button.

Calibration

Under normal circumstances it will not be necessary to adjust the calibration of the termperature or humidity sensors. If calibration is required, please contact a trainsed HVAC technician to correctly perform the folowing procedure.

1.  Press and hold SETUP for 10 seconds. All icons will appear on the display.
   Keep pressing the SETUP button until you see this screen.
2. After all the icons appear, release SETUP. Press MODE five times until CALIBRATE SENSORS. UP=YES MODE=NEXT appears on the display.
3. Press UP/WARMER to move to thermostat screen, then adjust the indicated room temperature readings as desired, then MODE to store and move to next screen. The offset can be adjusted +/- 7˚
4. After the TEMPERATURE screen is the HUMIDITY screen. Adjust the indicated room humidity reading as desired (+/- 15%), then MODE to store and move to next screen.
5. Press MODE to move through the remaining steps and return to normal thermostat operation.

Restoring Factory Default Settings

Resetting the thermostat to the Factory Default Settings
(for default values see page 49, Advanced Setup Steps Table)
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 may be permanently lost.

1. Press and hold SETUP for 10 seconds. All icons will appear on the display.
   Keep pressing the SETUP button until you see this screen.
2. After all the icons appear, release SETUP. Press and hold FAN for 5 seconds. FD ALL will appear on the display. Use WARMER/COOLER to select the range of settings to be cleared and/or reset to factory settings. Press/hold FAN for 2 seconds to bring defaults into your selection. After successfully defaulted, the screen will return to all icons. Press SETUP to return to normal thermostat operation.
   The available options are:
   • FD STAT: resets all setup steps to the values shown in the table on pages 49, 50 & 51. The time period schedule is reset
   • FD WIFI: all info regarding Wi-Fi access points is erased
   • FD SENSORS: all pairing info for VenNet or Wi-Fi sensors is erased
   • FD ALL: performs all three functions FD STAT, FD WIFI and FD SENSORS. This effectively returns settings to when the thermostat was new.
     Restoring Factory Default Settings
3. After the defaults have been restored, the screen will return to all icons. Either press MODE repeatedly or SETUP to return to normal thermostat operation.

Installation Instructions Test Operation

The thermostat has a diagnostic feature that enables testing of all outputs. This feature is contained in the thermostat’s technician setup.
To enter Technician Setup, press and hold the SETUP button for 10 seconds until all the icons appear. Follow the next steps to view settings and test equipment.

1. Press MODE to view the pcb and firmware versions. The firmware version will be numbered like 05-XX-YY.
2. Press MODE to view the firmware level and other info from any paired VenNet sensor
3. Press MODE again to view the jumper settings and current state of the Dry Contact terminal.
4. Press MODE again and the scrolling display will read TURN ON EQUIPMENT?” Press WARMER for Yes or COOLER for No.
   If Yes is chosen, press WARMER to turn on heat or COOLER to turn on Cooling. The scrolling display will read NOTHING ON. Next:
   Press WARMER to turn on and cycle up through the heating stages.
   Press COOLER to turn the heating stages off. Press MODE to exit.
   Press COOLER to turn on and cycle down through the cooling stages.
   Press WARMER to turn the cooling stages off. Press MODE to exit.
5. Press MODE until CALIBRATE SENSORS. appears on the scrolling display. Press WARMER for Yes or COOLER for No. Press MODE to select which sensor to calibrate. Use WARMER or COOLER to modify your selection.
6. Press MODE until CONTROL HUM? appears on the scrolling display. Press WARMER for On or COOLER for Off. Press MODE to continue.
7. Press MODE until CONTROL DEHUM? appears on the scrolling display. Press WARMER for On or COOLER for Off. Press MODE to continue.
8. Press MODE until CONTROL AUX OUT? appears on the scrolling display. Press WARMER for On or COOLER for Off. Press MODE to exit.
   To exit Technician Setup at any time, press the SETUP button. Technician Setup will automatically exit after 10 minutes if no buttons are pressed.

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.

• Assemble tools: Flat blade screwdriver, wire cutters, wire strippers and phone camera.
• 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 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	W1/0/B
Rh, R, M, Vr, A	Power	R
C	Common	C
O/B	Rev. Valve	W1/O/B*
W2	2nd Stage Heat	W2
Y2	2nd Stage Cooling	Y2
W3	3rd Stage Heat	W3
H, Hum	Humidity	HUM
D, Dehum	Dehumidity	DEHUM
Ck1	Dry Contact Switch	DRY CONTACT
CKGND	Dry Contact Switch	DRY CONTACT

The Explorer-IAQ Thermostat Backplate

To remove the thermostat backplate: Gently separate the display from the base by pulling first from one side, then the other until the two pieces unsnap. A small screwdriver may be used, very carefully, to start seperating the two pieces.

R	24 VAC return		C	24 VAC common
G W1/O/B	Fan relay 1st stage heat circuit		AUX OUTDOOR	Aux output Outdoor sensor
W2	2nd stage heat circuit		SENSOR	connections
Y1	1st stage compressor relay		REMOTE	Remote sensor
Y2	2nd stage compressor relay		SENSOR	connections
W3	3rd stage heat circuit		DRY	Dry Contact
HUM	Humidifier control circuit		CONTACT	connections
DEHUM	Dehumidifier control circuit

IMPORTANT: This thermostat requires both R (24 VAC Return) and C (24 VAC Common) be connected to the backplate terminals.

Check Dip Switch
Ensure which switch is correct for your system. Dip switches are located on the back of the thermostat.

1. When GAS/EL or HP is set for GAS/EL:
   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.
2. When GAS/EL or HP is set for HP:
   This switch (GAS or ELEC) defines the Aux Heat type. When GAS is chosen, the auxiliary heat will not be allowed to run during heat pump operation. When using a Dual Fuel system, set this switch for GAS (T3950-IAQ). When ELEC is chosen, up to two stages of auxiliary strip heat will be allowed to run.

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.

Sample Wiring Diagrams

Conventional Heating and Cooling Systems

Sample Wiring Diagrams
Heat Pump Systems

Note: When the unit goes into 4th stage heating, there is no 4th stage indicator, the display will still show 3rd stage.

Sample Wiring Diagrams

Heat Pump Systems with Dual Fuel

Humidification or Dehumidification

Dry Contact and Aux Output

Technician Setup

To enter Technician Setup, press and hold the SETUP button for 10 seconds. After all the icons appear, press MODE. The version number of the thermostat will appear in the scrolling text. Press MODE to advance to the next step.
Use the WARMER or COOLER buttons to adjust the value of your selection.
To leave Technician Setup, press SETUP.

Technician Setup is for diagnostic and testing purposes and is intended for use by a qualified technician.
Technician Setup contains the following options:

• View the firmware revision of the thermostat.
• View the firmware revision of VenNet.
• View the DIP switch setting of J1 (Gas/Electric or Heat Pump), J2 (Reversing Valve: RV=O or RV=B), and J3 (Fan: Gas or Electric) and state of Dry Contact input
• Turn on equipment outputs for testing.
• Calibrate thermostat, remote, and humidity sensors.
• Control HUM output (On or Off)
• Control DEHUM output (On or Off)
• Control AUX output (On or Off)

Troubleshooting

• SYMPTOM: The air conditioning does not attempt to turn on.
  CAUSE: The compressor timer lockout may prevent the air conditioner from turning on for a period of time.
  REMEDY: You might want to change the Compressor Minimum Off Minutes to 0 in setup step #25.
• SYMPTOM: The display is blank.
  CAUSE: Lack of proper power.
  REMEDY: Make sure the power is on to the furnace and that you have 24vac between R & C.
• SYMPTOM: The air conditioning does not attempt to turn on.
  CAUSE: The cooling setpoint is set too high.
  REMEDY: Lower the cooling setpoint or lower the cooling set-point limit. See Setpoint Limits (page 21).
• SYMPTOM: The heating does not attempt to turn on.
  CAUSE: The heating setpoint is set too low.
  REMEDY: Raise the heating setpoint or raise the heating set-point limit. See Setpoint Limits (page 21).
• SYMPTOM: When controlling a residential heat pump, and asking for cooling, the heat comes on.
  CAUSE: The thermostat reversing valve jumper is set for “B”.
  REMEDY: Set the reversing valve jumper for “O”.
• SYMPTOM: When calling for cooling, both the heat and cool come on. CAUSE: The thermostat equipment jumper is configured for “HP” and the HVAC unit is a Gas/Electric.
  REMEDY: Set the equipment jumper for “Gas”.
• SYMPTOM: When the Program button is pressed, the display
  reads “DISABLED”.
  CAUSE: Program mode is set to “NON PROGRAM”.
  REMEDY: Set Program Mode (Setup 1) to 1, 5/2, or 7 Day.
  See Selecting Your Program Mode (page 17).

Advanced Setup Table

Step# Description		Pg#	Range	Df
1	Prog Mode	17	Non, 7 Day	7
2	Available Modes	17	Heat/Cool/Auto/Off, Heat/Cool /Off, Heat/Off, Cool/Off	Heat/Cool/ Auto/Off
3	Backlight	18	On, Off	Off
4	Backlight Level	18	Off thru 7 levels of brightness	Level 5
5	Night Dimmer	18	On/Off, Off	Off
6	Night Dimmer Brightness	18	Off thru 7 levels of brightness	2 (20%)
7	Night Dimmer Start Time	18	12A-12A	8:00P
8	Night Dimmer Stop Time	18	12A-12A	6:00A
9	Current Service Filter Runtime Hours	18	0-1999 Hours	0
10	Current Service Filter Calendar Days	18	0-720 Days	0
11	Current Heat Runtime Hours	19	0-1999 Hours	0
12	Current Aux Heat Runtime Hours	19	0-1999 Hours	0
13	Current Cool Runtime Hours	19	0-1999 Hours	0
14	Current UV Lamp Calendar Days	19	0-720 Days	0
15	Current Humidifier Calendar Days	19	0-720 Days	0
16	Set Service Filter Runtime Hours	20	0-1950 hours	0
17	Set Service Filter Calendar Days	20	0-720 Days	0
18	Set UV Lamp Runtime	20	0-720 Days	0
19	Set Humidifier Runtime	20	0-720 Days	0
20	Language	20	English, Espanol, Francais	English
21	Setpoint Limits	21	On/Off	On
22	Max Heat Setpoint	21	35 – 99 Degrees	74
23	Min Cool Setpoint	21	35 – 99 Degrees	70
24	Cycles Per Hour	22	No Limit, 2, 3, 4, 5, 6	6
25	Compressor Minimum Off Minutes	22	0, 3, 5 Minutes	5
26	Min. Heat/Cool Setpoint Difference	22	0 – 6 Degrees	2
27	Number of Heat Stages	22	0 – 4	2
28	Number of Cool Stages	22	0 – 2	1
29	Number Of Compressor Stages	22	1, 2	1
30	Number of Auxiliary Stages	22	0, 1, 2	0
31	1st Stage Deadband	23	1 – 6 Degrees	2
32	2nd Stage Deadband	23	0 – 10 Degrees	2
33	3rd Stage Deadband	23	0 – 10 Degrees	2
34	4th Stage Deadband	23	0 – 10 Degrees	2
35	Minutes Between 1st and 2nd Stage	23	0 – 60 Minutes	2
36	Minutes Between 2nd and 3rd Stage	23	0 – 60 Minutes	2
37	Minutes Between 3rd and 4th Stage	23	0 – 60 Minutes	2
38	2nd StageTurnoff Point	24	Deadband, Setpoint	Deadband
39	3rd StageTurnoff Point	24	Deadband, Setpoint	Deadband

Step# Description		Pg#	Range	Df
40	4th Stage Turnoff Point	24	Deadband, Setpoint	Deadband
41	Fan Program	24	On, Off	Off
42	Minutes of Fan Runtime	24	0-60	0
43	Fan Program Start Time	24	12:00A – 12:00A	7:00A
44	Fan Program Stop Time	24	12:00A – 12:00A	9:00P
45	Wired Sensor Type	25	Remote, Supply, Outdoor
46	Control to Temp Source	25	Thermostat, Wired Remote*, Wireless Remote, Average of Wireless Remotes, Average Thermostat and Wired Remote*, Average All Sensors. *Option only if prior step = “Remote”	Thermostat
47	Wireless Remote to Use	25	list of wifi sensors currently linked to thermostat. * This step only appears if prior step = “Wireless Remote”	first linked sensor in list
48	Humidity Only With Heat	26	On, Off	Off
49	Fan With Humidify	26	Fan On, Fan Off	Fan Off
50	Fan With Dehumidify	26	Fan On, Fan Off	Fan Off
51	Humidity Setpoints	26	Auto, Manual	Manual
52	Cool To Dehumidify	26	On, Off	Off
53	Maximum Dehum Overcool	26	0 – 20 Degrees	2
54	Reheat Operation W/Cool To Dehum.	26	On, Off	Off
55	Lockout Heatpump with Outdoor Temp	27	On, Off	Off
56	Lockout Temp	27	-0 – 75 Degrees	35
57	Lockout Aux Heat with Outdoor Temp	27	On, Off	Off
58	Aux Heat Lockout Temp	27	20 – 75 Degrees	75
59	Dualfuel	28	On, Off	Off
60	Dualfuel Changeover on Outdoor Temp	28	On, Off	Off
61	Dualfuel Balance Point	28	0 – 60 Degrees	35
62	Fan Off Delay	28	0 – 120 Seconds	0
63	F/C	29	Fahrenheit (F), Celsius (C)	F
64	Aux Out Polarity		Open, Closed	Open
65	Smart Recovery	29	On, Off	Off
66	Dry Contact Polarity	29	Open, Closed	Open
67	Dry Contact Use	29	Condensate, Vacation, FDD	Vacation
68	Humidity Polarity	30	Open, Closed	Open
69	Dehumidify Polarity	30	Open, Closed	Open
70	Dehumidify only with Cooling	30	On, Off	On

Step# Description		Pg#	Range	Df
71	ADR	31	On, Off	On
72	ADR Action	31	Observe Setpoint Offsets, Observe Static Setpoints	Observe SP Offsets
73	Event Max Cool Setpoint	32	65 – 90	90
74	Event Min Heat Setpoint	32	50 – 85	50
75	Static Cool Setpoint	32	65 – 85	82
76	Static Heat Setpoint	32	65 – 85	60
77	Cool Setpoint Offset	32	1 to 15	4
78	Heat Setpoint Offset	32	-1 to -15	-4
79	IAQ Air Patrol	33	enabled, disabled	disabled
80	Air Patrol On If IAQ Exceeds Moderate Quality	33	Moderate, Poor	Moderate
81	AIR PATROL FAN ON MINUTES	33	5 – 60	10
82	Skyport	33	On, Off	On
83	Local API	33	On, Off	Off
84	Show Clock	33	On, Off	On
85	Show IAQ	33	On, Off	Off
86	Press Fan To Clear All Messages	33

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 MANUFACTURER WILL NOT BE RESPONSIBLE FOR:

1. Normal maintenance as outlined in the installation and servicing instructions or owner’s manual, including filter cleaning and/or replacement and lubrication.
2. Damage or repairs required as a consequence of faulty installation, misapplication, abuse, improper servicing, unauthorized alteration or improper operation.
3. Failure to start due to voltage conditions, blown fuses, open circuit breakers or other damages due to the inadequacy or interruption of electrical service.
4. Damage as a result of floods, winds, fires, lightning, accidents, corrosive environments or other conditions beyond the control of the Manufacturer.
5. Parts not supplied or designated by the Manufacturer, or damages resulting from their use.
6. Manufacturer products installed outside the continental U.S.A., Alaska, Hawaii, and Canada.
7. Electricity or fuel costs or increases in electricity or fuel costs for any reason whatsoever including additional or unusual use of supplemental electric heat.
8. ANY SPECIAL INDIRECT OR CONSEQUENTIAL PROPERTY OR COMMERCIAL DAMAGE OF ANY NATURE WHATSOEVER. 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.

This Explorer thermostat has the ability to receive updates to its firmware. Periodic 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. 5.00. Firmware releases after rev. 5.00 may not be adequately depicted in this manual.

FCC Compliance Statement

This device 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.

Changes or modifications not expressly approved by Venstar could void the user’s authority to operate the equipment.
This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to Part 15 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 to 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 receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help

This device contains license-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic
Development Canada’s license-exempt RSS(s). Operation is subject to the following two conditions:

1. This device may not cause interference.
2. This device must accept any interference, including interference that may cause undesired operation of the device.

Innovation, Science and Economic Development Canada ICES-003 Compliance Label: CAN ICES-3 (B)/NM8-3(B)

References:

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