Venstar t3700 digital thermostat controller
Get To Know Your Thermostat
Display Features
- The scrolling display will be used to help you easily navigate the setup screens in the thermostat.
- Clock with Day of the Week
Indicates the current time and day. This clock is also used to program the time period schedules. - 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 is turned off.
- Program icon
Indicates that Time Period Programming is running or is enabled to be set. - Room Temperature Display
Indicates the current room temperature and displays the outdoor temperature when selected. - Outdoor icon
Indicates the temperature displayed is from the optional outdoor sensor.
- Desired Set Temperature
Indicates desired room temperature(s). Also displays the highest and lowest temperatures for the day. - Morning, Day, Evening & Night icons
Indicates the day part of the time period program. - Wi-Fi icons
Indicates the thermostat is currently connected to the Local Area Network, via the optional Wi-Fi module. - Setup Step icon
Indicates the step number when the thermostat is in the setup mode. - 2nd and 3rd Stage icons
Indicates what stage of cooling or heating is currently energized. - icon
Indicates the keypad has been locked.
- AuxHeat icon
Indicates 2nd stage electric strip heat is being used when the thermostat is programmed for Heat Pump operation. - 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.
* Hi and Lo Temperatures for the day, reset at midnight.
Quick Start
- 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. - Setting the Clock and Day*
*Not available when connected to a Skyport Account
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.
Selecting the Heat or Cool Mode
The select mode by pressing the MODE button.- Heating Only – Only the heating operation will be controlled by the thermostat in this mode.
- Cooling Only – Only the cooling operation will be controlled by the thermostat in this mode.
- Heating or Cooling (Auto-Changeover) – AUTO 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
- 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.
- 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.
Using the Fan Button
Fan On indicates constant fan operation. You may turn the fan on even if the thermostat is in the OFF mode. Pressing the FAN button toggles this feature on or off.
Viewing the Temperature Sensors
OUTDOOR TEMP – Press the OUTDOOR button to view a connected outdoor wired sensor.
If the thermostat is connected to Skyport; upon pressing the OUTDOOR button the scrolling display will read “Forecast”.
The forecasted high and low temperatures for the day will be displayed.
Press the OUTDOOR button again to view any connected outdoor wired sensor. (Remote or supply).
Note: If no outdoor sensor is connected, and there isn’t outdoor temperature via Wi-Fi, then 2 dashes [- -] will appear with the first button press.
REMOTE/SUPPLY TEMP – Press the Accessory Status button to view linked wireless wired sensors and other accessories.
Press the Accessory Status button to return to the main screen.
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.
- Assemble tools: Flat blade screwdriver, wire cutters and wire strippers.
- Make sure your Heater/Air Conditioner is working properly before beginning 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 smart phone 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 |
| Ck1 | Dry Contact Switch | DRY CONTACT |
| GND | Dry Contact Switch | DRY CONTACT |
* O/B has used if your system is a Heat Pump.
The Voyager 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 separating the two pieces.
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.
- 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. - 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. 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
Heat Pump Systems 
Heat Pump Systems
Test Operation
The technician setup is a diagnostic feature that enables testing of all outputs.
To enter Technician Setup, press and hold the SETUP button for 5 seconds until all the icons appear. Follow the next steps to view settings and test equipment.
- Press MODE to view the version numbers of the thermostat.
- Press MODE again to view the jumper settings and current state of the Dry Contact terminals.
- 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.
- 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.
To exit Technician Setup at any time, press the SETUP button. Technician Setup will automatically exit after 10 minutes if no buttons are pressed.
User Setup: Backlight Operation
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.
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
Language (Setup Step 15)
Setup step instructions on the scrolling display can be set for English, Spanish, or French.
Press the SETUP button, then press MODE repeatedly until the Language setup step appears. Use the WARMER or COOLER buttons to make selection. Press MODE to advance to the next step. Press SETUP to leave the setup screens.
Scrolling Screen and Display Options
Scrolling Display Method (Setup Step 16)
This option allows the user to choose how the scrolling text is displayed. Options are:
Press the SETUP button, then press MODE repeatedly until the Scrolling Method setup step appears. Use the WARMER or COOLER buttons to make a selection. Press
MODE to advance to the next step. Press SETUP to leave the setup screens.
Example of “Whole Words Centered”:
Vacation & Away Settings
The Vacation feature allows the thermostat to use temporary, energy saving setpoints without having to change regular programming.
The HOME/AWAY feature allows for a one button press to bring in your stored unoccupied vacation settings. A subsequent press of the HOME/AWAY button restores the last used comfort settings.
Press the VACATION button to enter Vacation/Away programming.
Use the WARMER and COOLER buttons to choose the number of days desired to run the in Vacation/Away settings.
To confirm your settings and advance to the next step, press the MODE button again. Choose the desired Vacation/Away Mode. Press the MODE again to adjust the ‘unoccupied’ setpoint. If you selected auto changeover mode for unoccupied/vacation settings, then pressing MODE again will allow the adjusting of the 2nd setpoint. Otherwise press MODE to confirm and return to normal operation.
Press the VACATION button again to return to the main screen. Both VACATION and AWAY use these same settings. VACATION button use specifies a duration of days for these settings, whereas Away maintains these settings until the HOME/AWAY button is pressed again.
When the VACATION button is pressed and the thermostat detects that a Wi-Fi module is installed:
- During Non-Vacation Periods: the scrolling display will read: “Use Skyport to View/Edit Settings”.
- During Vacation Period: the scrolling display will read: “To cancel VACATION press MODE button”.
- NOTE: If the HOME/AWAY button is pressed during an active VACATION period, the scrolling display will read: “To cancel VACATION press MODE button.
The thermostat must be running in Program On for VACATION to have any effect. After you alter any settings, they will take effect until midnight on that day. The thermostat does not need to be running in Program On for the HOME/AWAY button to have effect.
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 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 used for heating and all stages of cooling will be unavailable. To exit Emergency Heat, press the EMERGENCY button.
Wireless Module
The Accessory Status button allows the user to view the status of wired and wireless accessories. For many of wireless devices this status includes: Battery Level, Signal Strength & Last Time Updated.
If there is an optional wireless module installed, the Accessory Setup button allows the user to link or connect wireless devices to the thermostat, or the thermostat to the network.
Voyager thermostats may use 1 of 4 different types of optional accessory modules. They are:
- Wi-Fi Module
- Z-Wave Module
- ZigBee Module
- Venstar RF Module
- venstar RF Module
Please follow the instructions included with the wireless accessory to start the linking process. The general instructions are below.- Press the Accessory Setup button to enter the linking/unlinking mode.
- Press the Mode button to initiate the linking or un-linking process.
- At any time press the Accessory Setup button to return to the main screen.
NOTE: A wired outdoor sensor is updated every 1 minute, a wireless outdoor sensor is updated every 5 minutes to conserve battery life.
- Wi-Fi Module
Please follow the instructions included with the Wi-Fi module to connect to an Access Point or view status. The general instructions are below.
Wi-Fi Module
If
the is present on the display then the thermosat is connected to the Wi-Fi Access Point. If just the “dot” of this icon appears, then just the Wi-Fi module is recognized.Press the Accessory Status button, then press either the Cooler button to view connected Wi-Fi sensors, OR press the Warmer button to view the Wi-Fi status and settings.
Press the Mode button to step through the connected sensors or the Wi-Fi status screens listed below.- Wi-Fi status (connecting, connected with duration of connection, etc.)
- Signal strength
- Access point name
- IP address
- MAC address
- Skyport status (connecting, connected with duration of the connection, etc.)
- Local API status (Enabled, Disabled)
- Module version
At any time press the Accessory Status button to leave the status screens.
Press the Accessory Setup button to enter Wi-Fi or Skyport setup:
- Press the Cooler button to configure Wi-Fi settings.
- Press the Warmer button to join this thermostat to a Skyport account. If the theremostat is connected to Wi-Fi and the Internet, a Device ID will appear on the scrolling display of the thermostat. You will enter this code to add this thermostat to your Skyport account via a browser or the Skyport mobile app.
Note: To connect to Skyport Cloud Services, Setup Step #27 must be set to on.
Z-Wave Module
Please follow the instructions included with the Z-Wave module to join the Network or view status. The general instructions are below.
Z-Wave Module
Press the Accessory Status button to view the status of the thermostat’s connection to the Network.
Press the Accessory Setup button to enter the Z-Wave Network setup:
- Press the Cooler button to join the Z-Wave Network and start the connection process on the Z-Wave controller.
- Press the Warmer button to remove this thermostat from the Z-Wave network. When prompted, press the Mode button to remove the thermostat from a connected controller. If the controller is not present, press the Fan button to remove the thermostat forcefully from the network.
Please use this procedure only in the event that the network primary
the controller is missing or otherwise inoperable.
Notes regarding Voyager’s Z-Wave plus module:
- The Voyager Z-Wave thermostat supports association group 1.
- This group supports up to 5 devices and is used for reporting setpoint changes performed by the user on the thermostat, and for reporting when the thermostat was reset locally by the user. the Z-Wave command set allows for the implementation of the thermostat’s Home/Away and Vacation settings as described on page 19.
- Products from different manufacturers and product categories can be part of the same network and non-battery-powered nodes may act as repeaters, regardless of manufacturers.
ZigBee Module
Please follow the instructions included with the ZigBee module to join the Network or view status. The general instructions are below.
ZigBee Module
- Press the Accessory Status button to view the status of the thermostat’s connection to the Network.
- Press the Accessory Setup button to enter the ZigBee Network setup:
- Press the Cooler button to join the ZigBee Network and start the connection process on the Z-Wave controller.
- Press the Warmer button to remove this thermostat from the Network. When prompted, press the Warmer button again to confirm thermostat removal from the ZigBee network.
Note for WiFi, Z WAVE and Zigbee: In order for 3rd party devices (such as home automation systems) to communicate with your thermostat through its local API, Setup Step #28 must be set to ON.
If desired both Skyport access and API access may be both set to on, allowing 3rd party device access as well as Skyport access.
Service Filter
These setup steps allow the user to monitor equipment runtimes and program service alerts. Service alerts are displayed in the scrolling marquee.
Service Filter Runtime (Setup Steps 9-10, 12-13)
- 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.
Set Service Filter Runtime Hours (Setup Step 12) – 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 13) – 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.
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 SETUP to leave the setup screens.
Runtimes
To view, set, or reset System Runtimes, press the SETUP button, then press MODE. Press MODE to advance to the desired setup step. Use the WARMER or COOLER buttons to adjust the value of your selection. Press SETUP again to leave the setup screens.
UV Lamp Runtime (setup steps 11, 14)
- Current UV Lamp Calendar Days (Setup Step 11) – This counter displays the total number of calendar days that have elapsed to help the user track UV lamp runtime. Press FAN to reset.
- Set UV Lamp Calendar Days (Setup Step 14) – 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.
Time Period Programming
Selecting Your Time Period Schedule (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.
- 1-Day Program – Allows one 24-hour day to be programmed. This same schedule will be repeated every day the program is set to run.
- 5/2 Day Program – Allows weekdays, Saturday, and Sunday to be programmed independently.
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.
Programming a Daily Schedule
To enter Time Period Programming screens, Press and hold PROGRAM until the scrolling prompt appears.
- OFF – Time Period Program is off.
- RUN – Time Period Program is running.
- HOLD TO SET – Press and hold PROGRAM to make Time Period Programming changes.
- Select Day of Week to program – Press the WARMER or COOLER buttons to choose the day of the week to be Press MODE 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.
- 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, which includes OFF. You may be limited by the available modes in advanced Installer setup step#2. 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 Auto Mode 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.
Press the PROGRAM Button to exit Time Period Programming at any time.
Installer Setup
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.
Selecting Your Time Period Schedule (setup step 1)
This thermostat may be configured to be programmable or non programmable.
- 7 Day Program – Allows all seven days to be programmed independently.
- Non Program – No advanced time period programming available.
- 1 Day Program – Allows one 24 hour day to be programmed. This same schedule will be repeated everyday the program is set to run.
- 5/2 Day Program – Allows weekdays, Saturday, and Sunday to be programmed nindependently.
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.
Cycles Per Hour (setup step 17)
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 18)
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 19)
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 20)
- Number of Cool Stages (Setup Step 21)
- Number of Aux Heat Stages (Setup Step 22)
Deadband Settings (setup step 23)
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 23) – 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.
Fahrenheit or Celsius (setup step 24)
This feature allows the thermostat to display temperature in Fahrenheit or Celsius.
Press Fan To Clear All Messages (setup step 29)
This feature allows the user to clear all current error messages from the display.
Dry Contact Operation (Setup Step 25 – 26)
Dry Contact Polarity (setup step 25)
- 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 26)
- CONDENSATE – If 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.
Resetting the Thermostat to the Factory Default Settings
(for default values see page 33, Advanced SetupTable)
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. Additionally, if a Z-Wave module is installed, resetting the thermostat will not reset the Z-Wave module. To reset the Z-Wave module, please follow the instructions on Page 22.
- Press and hold SETUP for 10 seconds. All icons will appear on the display.
- After all the icons appear, release SETUP. Press and hold FAN for 5 seconds. DEFAULTS will appear on the display.
- After DEFAULTS appears, release FAN. Press MODE to return to normal operation.
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. 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.
The icon will disappear from the display, then release the buttons.
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. See page 15 for more detailed instructions.
Technician Setup contains the following options:
- View the version number of the thermostat.
- View the jumper setting of J1 (Gas/Electric or Heat Pump), J2 (Reversing Valve: RV=O or RV=B), and J3 (Fan: Gas or Electric) jumpers located on the back of the thermostat. (Remove the thermostat from backplate for access)
- View the state of the Dry Contact and Fault terminals.
- Turn on equipment outputs for testing.
- Calibrate thermostat and remote sensors.
Advanced Setup Table
| Step# Description | Pg# | Range | Df | |
| 1 | Prog Mode | 25 | Non, 1 Day, 5/2 Day, 7 Day | 7 |
| 2 | Available Modes | 25 | Heat/Cool/Auto/Off,
Heat/Cool/Off, Heat/Off, Cool/Off |
Heat/Cool/
Auto/Off |
| 3 | Backlight | 16 | On, Off, 6pm-6am | Off |
| 4 | Backlight Level | 17 | Off thru 7 levels of brightness | Level 5 |
| 5 | Night Dimmer | 16 | On/Off | Off |
| 6 | Night Dimmer Brightness | 16 | Off thru 7 levels of brightness | 2 (20%) |
| 7 | Night Dimmer Start Time | 16 | 12A-12A | 8:00P |
| 8 | Night Dimmer Stop Time | 16 | 12A-12A | 6:00A |
| 9 | Current Service Filter Runtime Hours | 23 | 0-1999 Hours | 0 |
| 10 | Current Service Filter Calendar Days | 23 | 0-720 Days | 0 |
| 11 | Current UV Lamp Calendar Days | 24 | 0-720 Days | 0 |
| 12 | Set Service Filter Runtime Hours | 23 | 0-1950 hours | 0 |
| 13 | Set Service Filter Calendar Days | 23 | 0-720 Days | 0 |
| 14 | Set UV Lamp Calendar Days | 24 | 0-720 Days | 0 |
| 15 | Language | 17 | English, Espanol, Francais | English |
| 16 | Scrolling Method | 17 | “L-R Slow, L-R Fast, Word L-R Slow, Word L-R
Fast, Whole Word L Slow, Whole Word R Slow, Whole Word Ctr. Fast, Whole Word Ctr. Slow” |
English |
| 17 | Cycles Per Hour | 28 | No Limit, 2, 3, 4, 5, 6 | 6 |
| 18 | Compressor Minimum Off Minutes | 28 | 0, 3, 5 Minutes | 5 |
| 19 | Min. Heat/Cool Setpoint Difference | 28 | 0 – 6 Degrees | 2 |
| 20 | Number of Heat Stages | 28 | 0 – 2 | 2 |
| 21 | Number of Cool Stages | 28 | 0 – 1 | 1 |
| 22 | Number of Aux Stages | 28 | 0, 1 | 0 |
| 23 | 1st Stage Deadband | 28 | 1 – 6 Degrees | 2 |
| 24 | F/C | 28 | Fahrenheit (F), Celsius (C) | F |
| 25 | Dry Contact Polarity | 29 | Open, Closed | Open |
| 26 | Dry Contact Use | 29 | Condensate, Vacation, FDD | Vacation |
| 27 | Skyport | 20 | On, Off | On |
| 28 | Local API | 22 | On, Off | Off |
| 29 | Press Fan To Clear All Messages | 28 | ||
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: Consult the Owner’s Manual in the Installer Setup section to defeat the Cycles Per Hour (page 28). - 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: 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 21).
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:
- 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 operation.
- 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.
- Manufacturer products installed outside the continental U.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 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.
Programming Worksheet
| DAY | PERIOD | START TIME | COOL | HEAT | |
| MONDAY | Morning | ||||
| Day | |||||
| Evening | |||||
| Night | |||||
| TUESDAY | Morning | Copy Mon to Tues
No Yes |
|||
| Day | |||||
| Evening | |||||
| Night | |||||
| WEDNESDAY | Morning | Copy Tues to Wed
No Yes |
|||
| Day | |||||
| Evening | |||||
| Night | |||||
| THURSDAY | Morning | Copy Wed to Thurs
No Yes |
|||
| Day | |||||
| Evening | |||||
| Night | |||||
| FRIDAY | Morning | Copy Thurs to Fri
No Yes |
|||
| Day | |||||
| Evening | |||||
| Night | |||||
| SATURDAY | Morning | Copy Fri to Sat
No Yes |
|||
| Day | |||||
| Evening | |||||
| Night | |||||
| SUNDAY | Morning | Copy Sat to Sun
No Yes |
|||
| Day | |||||
| Evening | |||||
| Night |
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 deadband).
- 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 deadband).
- 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.
- 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.
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 receiver.
- Connect the equipment into 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:
- this device may not cause interference, and
- 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.
This Voyager 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.
REFERENCE:
Download Manual: Venstar t3700 digital thermostat controller user manual
https://device.report/energystar/2356694
Venstar t3700 digital thermostat controller – Energy Star Certification
