Venstar T3700 Thermostat Instruction Manual

Manual Venstar T3700 Thermostat Instruction Manual

Venstar T3700 Thermostat Instruction Manual

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Venstar T3700 Thermostat

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Venstar T3700 Thermostat

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Venstar T3700 Thermostat Instructions

Here we offer the Venstar T3700 Thermostat manual completely free and in English. We have cataloged this manual in the Thermostats section on Manualverse, and it has been rated by 1 users with an average rating of 5. If you have any specific questions about Venstar T3700 Thermostat, we suggest checking the Frequently Asked Questions (FAQs) section of this manual.


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Venstar T3700 Thermostat Specifications

Feature Specification
Model Venstar T3700 (Voyager Thermostat)
System Compatibility 24V systems requiring R & C wires, including gas, electric, oil, forced air, variable speed, heat pump, and radiant heat.
Heating Stages 1, 2, or 3 stages (W1, W2, W3)
Cooling Stages 1 or 2 stages (Y1, Y2)
Heat Pump Support Yes, with auxiliary and emergency heat (Y, W1, O/B)
Fan Control Dedicated G terminal
Power Requirements 24 VAC (R & C terminals required)
Dry Contact Terminals Yes (Ck1, CKGND)
Optional Wireless Modules Wi-Fi, Z-Wave, ZigBee, Venstar RF Module
Display Type Backlit LCD with Scrolling Display
Temperature Display Units Fahrenheit (F) or Celsius (C)
Program Modes Non-Programmable, 1 Day, 5/2 Day, 7 Day Program
Available Operating Modes Heat/Cool/Auto/Off, Heat/Cool/Off, Heat/Off, Cool/Off
Cycles Per Hour (CPH) Settings No Limit, 2, 3, 4, 5, 6
Compressor Minimum Off Minutes 0, 3, 5 minutes
Minimum Heat/Cool Setpoint Difference 0 to 6 degrees (in Auto mode)
1st Stage Deadband 1 to 6 degrees
Firmware Version Rev. 1.0 (at time of publication, upgradable)
FCC Compliance Part 15, Subpart C (Intentional Radiator)
RF Exposure Separation Distance Minimum 20 cm from all persons
User Interface Languages English, Spanish, French

Venstar T3700 Thermostat Details

The Venstar T3700 Thermostat, also known as the Voyager Thermostat, offers an intuitive user experience with its backlit LCD display and scrolling text, designed to simplify navigation through setup screens. It features backlit Cooler & Warmer buttons, a dedicated Mode button, and clear indicators for heat (red) or cool (green) demand. The front panel also includes easily accessible Setup buttons hidden behind a door, contributing to its sleek design.

Its display is rich with information, showing the current time and day, which is crucial for scheduling. Mode indicators like HEAT, COOL, HEAT & COOL (for auto-changeover), and OFF provide immediate feedback on the system's operational status. A "Program" icon indicates when time period programming is active, while a "Wi-Fi" icon confirms network connectivity via an optional module.

Beyond basic temperature display, the T3700 can show outdoor temperatures from an optional wired sensor or, if connected to Skyport, even provide a forecast of daily high and low temperatures. Icons for "Morning," "Day," "Evening," and "Night" visually represent the active part of the programmed schedule. Furthermore, indicators for "2nd" and "3rd Stage" show when additional heating or cooling capacity is engaged, and an "AuxHeat" icon signals the use of electric strip heat in heat pump operations.

Customization extends to the display's aesthetics and functionality. Users can adjust the backlight intensity across seven levels or enable a "Night Dimmer" feature, specifying its brightness and start/stop times for reduced illumination during evening hours. The scrolling text method itself can be tailored, offering options from slow letter-by-letter scrolls to fast, centered whole words, enhancing readability based on preference.

For convenience, the thermostat includes "Vacation" and "Away" settings. The Vacation feature allows temporary energy-saving setpoints for a pre-defined number of days, ideal for extended absences. The Home/Away feature provides a quick, one-button press to activate stored unoccupied settings without altering the regular program, maintaining these settings until deactivated.

The T3700 supports various wireless modules including Wi-Fi, Z-Wave, ZigBee, and Venstar RF, allowing for advanced system integration. The "Accessory Status" button provides crucial information such as battery levels, signal strength, and last update times for linked wireless devices. This connectivity enables remote monitoring and control through platforms like Venstar Skyport Cloud Services.

Maintenance is streamlined with "Service Filter" and "UV Lamp Runtime" counters. These track fan operating hours and UV lamp calendar days, respectively. Users can set alerts that trigger a "Replace Filter" or "Replace UV Lamp" message on the scrolling display, ensuring timely upkeep. These alerts can be easily cleared by simply holding down the FAN button.

Advanced programming options include up to four customizable time periods per day: Morning, Day, Evening, and Night. Each period's start time, mode, and setpoints can be independently adjusted, or even disabled. A useful "Copy Current Day to Next Day" function allows for quick replication of schedules, simplifying the setup process for multi-day programming.

The thermostat also offers robust installer-level settings, such as adjusting the number of heating, cooling, and auxiliary stages, along with precise deadband controls to fine-tune system response. Its Dry Contact terminals offer versatile functionality, configurable for uses like condensate pan overflow detection (locking out the compressor), triggering vacation settings, or indicating an equipment fault (FDD).

Security is addressed with a keypad lockout feature, disabling front panel buttons to prevent unauthorized tampering. In case of extensive configuration changes or troubleshooting, the thermostat can be reset to factory default settings via a simple sequence of button presses, although this will erase all stored programming.

Frequently Asked Questions (FAQs)

Can't find the answer you need? Here are some frequently asked questions about the Venstar T3700 Thermostat, and we answer them below.


Why isn't my air conditioning turning on?
This could be due to the compressor timer lockout preventing immediate startup, or the cooling setpoint being too high. Try adjusting the 'Compressor Min. Off Time' to 'None' in the Installer Setup or lower your desired cooling setpoint. Also, ensure 'Free Cooling' isn't enabled if you don't have the necessary ductwork.

My thermostat display is blank. What should I do?
A blank display typically indicates a lack of proper power. Verify that the power to your furnace is on and that you have 24VAC between the R and C terminals on the thermostat backplate.

My heat pump is cooling when I ask for heat, or heating when I ask for cool. What's wrong?
This suggests an incorrect setting for the thermostat's reversing valve jumper. If your heat pump is cooling when you want heat, set the reversing valve jumper for 'O'. If it's heating when you want cool, set it for 'B'.

When I call for cooling, both heating and cooling turn on simultaneously. How can I fix this?
This usually happens if the thermostat's equipment jumper is configured for 'HP' (Heat Pump) but your HVAC unit is a Gas/Electric system. You should set the equipment jumper for 'Gas'.

The display shows 'DISABLED' when I press the Program button. Why?
The program mode is likely set to 'NON PROGRAM'. To enable scheduling, navigate to Setup 1 in the User Setup menu and change the Program Mode to '1 Day', '5/2 Day', or '7 Day'.

How do I set the clock and day on the T3700 thermostat?
Press the SET CLOCK button. Use the WARMER or COOLER buttons to adjust the time, then press MODE to advance to the day setting. Adjust the day with WARMER or COOLER, and press SET CLOCK to confirm. Note: This is not available if connected to a Skyport Account.

How can I view outdoor temperature readings or data from remote sensors?
Press the OUTDOOR button to view a connected wired outdoor sensor. If connected to Skyport, the first press may show 'Forecast' (high/low temps), pressing again will show the wired sensor. For remote/supply wired sensors, press the ACCESSORY STATUS button.

What is the difference between the 'Vacation' and 'Away' features?
Both features set temporary energy-saving setpoints. 'Vacation' allows you to specify a duration (number of days) for these settings. 'Away', activated by the HOME/AWAY button, maintains these settings indefinitely until the button is pressed again, without a set duration.

How do I lock or unlock the keypad on my thermostat?
To lock the keypad, press and hold the MODE button, then simultaneously press the WARMER and COOLER buttons. A lock icon will appear on the display. To unlock, repeat the same sequence; the lock icon will disappear.

How do I reset my Venstar T3700 to factory default settings?
To reset, press and hold SETUP for 10 seconds until all icons appear. Release SETUP, then press and hold FAN for 5 seconds until 'DEFAULTS' appears on the display. Release FAN, then press MODE to return to normal operation. Be aware that this will erase all custom settings and programming.

How can I tell if my optional Wi-Fi module is successfully connected to the network?
Look for the Wi-Fi icon (an antenna symbol with a dot) on the thermostat display. If the full icon is present, the thermostat is connected to the Local Area Network. If only the 'dot' of the icon appears, the Wi-Fi module is recognized but not yet fully connected.

What does the 'AuxHeat' icon signify on the display?
The 'AuxHeat' icon indicates that the second stage electric strip heat is currently being utilized. This specifically applies when the thermostat is configured for Heat Pump operation and requires supplemental heating.

What are the functions of the Dry Contact terminals?
The Dry Contact terminals can be configured for various applications such as 'CONDENSATE' (locking out the compressor if a pan overflow is detected), 'VACATION' (forcing the thermostat into unoccupied settings), or 'FDD' (displaying an 'Equipment fault' message).

How can I clear service alert messages like 'Replace Filter' from the scrolling display?
To clear any active service alert messages from the scrolling marquee, simply press and hold the FAN button. This will reset the alert without affecting the system's operation.

Can I update the firmware on my T3700 thermostat?
Yes, the Voyager thermostat is designed to receive firmware updates periodically released by the manufacturer. These updates add features and enhance performance. For information on updates after firmware release 1.0, refer to the Venstar website or contact your place of purchase.

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