Invoering
This manual provides detailed instructions for the installation, operation, and maintenance of the Venstar T4900 Commercial Voyager Wi-Fi Programmable Thermostat. The T4900 is designed for commercial applications, offering advanced control over heating and cooling systems with features such as Wi-Fi connectivity, Alexa compatibility, and multi-stage programmeren.
Please read this manual thoroughly before attempting installation or operation to ensure proper functionality and to avoid potential damage to the unit or your HVAC system.
Veiligheidsinformatie
- Schakel altijd de stroom naar het verwarmings- en koelsysteem uit via de hoofdzekering of via de stroomonderbreker voordat u de thermostaat installeert of onderhoudt.
- Installation should be performed by a qualified HVAC technician or electrician.
- Zorg ervoor dat alle bedrading goed is aangesloten en voldoet aan de plaatselijke elektrische voorschriften.
- Do not short circuit the terminals on the gas valve or primary control to test the thermostat. This will damage the thermostat and void the warranty.
- This thermostat operates on 24 Volts AC. Do not connect to line voltagen (120V/240V).
Inhoud van het pakket
Controleer of uw pakket de volgende items bevat:
- Venstar T4900 Commercial Voyager Thermostat
- Montagemateriaal (schroeven en muurankers)
- Installatiehandleiding / Gebruikershandleiding (dit document)

Image: Venstar T4900 Thermostat shown alongside its retail packaging, illustrating the product as it appears when unboxed.
Instellen en installeren
1. Locatie
Install the thermostat approximately 5 feet (1.5 meters) above the floor in an area with good air circulation, away from direct sunlight, drafts, and heat sources. Avoid locations near windows, doors, or vents that could affect temperature readings.
2. Uitschakelen
Before beginning installation, ensure the power to your HVAC system is completely turned off at the circuit breaker.
3. Verwijder de oude thermostaat
Carefully remove your old thermostat from the wall. Take a picture of the existing wiring connections before disconnecting any wires. Label each wire with the terminal designation it was connected to.
4. Mount the New Thermostat
- Haal het voorpaneel los van de basis van de thermostaat.
- Position the thermostat base on the wall, feeding the wires through the opening.
- Markeer de montagegaten. Boor indien nodig voorboorgaten.
- Secure the thermostat base to the wall using the provided screws and anchors.

Afbeelding: Achterkant view of the Venstar T4900 Thermostat, showing the wiring terminals and mounting plate for installation.
5. Bedrading
Connect the wires to the corresponding terminals on the T4900 thermostat base. Refer to the wiring diagram specific to your HVAC system type (e.g., conventional, heat pump). The T4900 supports 4 Heat Stages & 2 Cool Stagen.
Belangrijk: If only 4 wires are available for installation, the Venstar Add-A-Wire accessory (PN# ACC0410) may be required. Consult the Add-A-Wire installation instructions for details.
6. Attach Front Cover and Power On
Once wiring is complete, carefully attach the front cover to the thermostat base. Restore power to your HVAC system at the circuit breaker.
7. Initiële configuratie
Upon first power-up, the thermostat may guide you through initial setup steps, including system type selection and basic date/time settings. Follow the on-screen prompts.

Afbeelding: Voorzijde view of the Venstar T4900 Thermostat, displaying its screen and control buttons.
Gebruiksaanwijzing
Display en knoppen
The T4900 features a large, easy-to-read display with adjustable backlight intensity and backlit, color-coded buttons for intuitive control.
- Omhoog/omlaag pijlen: Adjust temperature setpoints, navigate menus, and change settings.
- Modusknop: Schakelt tussen de systeemmodi (Verwarmen, Koelen, Automatisch, Uit).
- Ventilatorknop: Cycles through fan modes (Auto, On).
- Menuknop: Accesses advanced settings and programming options.
Programmeren
De T4900 biedt flexibele programmeermogelijkheden:
- 7-daagse programmering: Customize schedules for each day of the week.
- 5+1+1 Day Programming: Set one schedule for weekdays, and separate schedules for Saturday and Sunday.
- 1-daagse programmering: A single schedule applies to all days.
- Up to 3 Occupied Periods Per Day can be programmed.
- 365 Day Holiday Programming: Allows for specific holiday schedules.
Access programming settings via the Menu button and follow the on-screen instructions to set desired temperatures and times for each period.
Wi-Fi Connectivity and Smart Features
For Wi-Fi operation and smart features, the Venstar Wi-Fi-module (onderdeelnummer: ACC-VWF1) is required. Once installed and configured, you can:
- Control the thermostat remotely via a smartphone app.
- Integrate with Amazon Alexa for voice control.
- Utilize Advanced Demand Response (ADR) capabilities.
- Receive Equipment Fault Detection (FDD) notifications.
- Access API for 3rd party monitoring and control systems.
Refer to the ACC-VWF1 module's specific instructions for Wi-Fi setup and app integration.
Geavanceerde functies
- Adjustable Deadbands and Timers: Configure the temperature differential and minimum run times between stagen.
- Remote Sensor Averaging: The thermostat can average readings from one remote sensor with its internal sensor.
- Pre-Occupancy Fan Purge: Circulates air before occupancy periods.
- Light Activated: Features that respond to ambient light conditions.
- Energy Watch: Monitors and displays energy usage data.
Onderhoud
De thermostaat schoonmaken
Om het uiterlijk en de functionaliteit van uw thermostaat te behouden:
- Veeg de buitenkant af met een zachte, damp lap.
- Gebruik geen schurende reinigingsmiddelen of oplosmiddelen.
- Zorg ervoor dat er geen vocht in de interne onderdelen terechtkomt.
The Venstar T4900 does not use batteries; it is powered by your HVAC system's 24V AC supply.
Probleemoplossing
| Probleem | Mogelijke oorzaak | Oplossing |
|---|---|---|
| Thermostaatdisplay is leeg. | Er gaat geen stroom naar de thermostaat. | Controleer de stroomonderbreker van uw HVAC-systeem. Zorg ervoor dat alle bedradingsaansluitingen goed vastzitten. |
| Het verwarmings-/koelsysteem reageert niet. | Incorrect system mode, wiring issue, or system fault. | Verify the thermostat is in the correct mode (Heat/Cool/Auto). Check wiring connections. If FDD (Equipment Fault Detection) is enabled, check for fault notifications. |
| Temperatuurmetingen lijken onnauwkeurig. | Locatie van de thermostaat, probleem met de sensor. | Ensure the thermostat is not exposed to direct sunlight, drafts, or heat sources. If using a remote sensor, verify its placement and connection. |
| Kan geen verbinding maken met wifi. | Wi-Fi module not installed, incorrect setup, network issues. | Zorg ervoor dat de ACC-VWF1 Wi-Fi Module is correctly installed. Follow the Wi-Fi module's specific setup instructions. Check your Wi-Fi network status. |
For further assistance, please contact Venstar customer support.
Specificaties
| Merk | Venstar |
| Modelnaam | Venstar T4900 Commercial Voyager |
| Controller-type | Wi-Fi, Amazon Alexa (with ACC-VWF1 module) |
| Speciale kenmerken | Phone App Available, Temperature Sensor, Humidity Sensor, Dehumidification Control, 7-Day Programmable, 365 Day Calendar, Pre-occupancy Fan Purge, Up to 4 Hours Override, ADR Ready, FDD Notification, API for 3rd party monitor & control |
| Kleur | Wit |
| Specifieke toepassingen voor het product | HVAC Control (Heating, Cooling, Humidification, Dehumidification) |
| Type temperatuurregeling: | Both (Heating and Cooling) |
| Connectiviteitstechnologie | Wi-Fi (with ACC-VWF1 module), Z-Wave (optional, not specified in product details), Wireless (Wi-Fi) |
| Energiebron | Wisselstroom/gelijkstroom (24 Volt) |
| Deeltage | 24 Volt |
| Vorm | Rechthoekig |
| Weergavetype | Digitaal |
| Controletype | Knopbediening |
| Controlemethode | Voice (via Alexa with ACC-VWF1), Manual Buttons |
| Connectiviteitsprotocol | Wi-Fi |
| Montagetype | Muurbevestiging |
| Achtergrondverlichting | Ja |
| Artikelgewicht | 10.4 ons |
| Productafmetingen | 2.3 x 6.3 x 5 inch |
| Artikelmodelnummer | T4900 |
| UPC | 748528959706 |
Garantie-informatie
The Venstar T4900 Commercial Voyager Thermostat comes with a 1 jaar fabrieksgarantie. Please retain your proof of purchase for warranty claims. For specific terms and conditions, refer to the warranty documentation included with your product or visit the official Venstar webplaats.
Steun
If you require further assistance, have questions about installation, operation, or troubleshooting, please contact Venstar customer support:
- Visit the official Venstar website voor veelgestelde vragen, ondersteunende documenten en contactinformatie.
- Contact your authorized Venstar dealer or installer.
For information on optional accessories like the Add-A-Wire (ACC0410) or Wi-Fi Module (ACC-VWF1), please refer to their respective documentation or the Venstar webplaats.