Introduksjon
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 programmering.
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.
Sikkerhetsinformasjon
- Always turn off power to the heating and cooling system at the main fuse or circuit breaker panel before installing or servicing the thermostat.
- Installation should be performed by a qualified HVAC technician or electrician.
- Sørg for at alle ledningstilkoblinger er sikre og i samsvar med lokale elektriske forskrifter.
- 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 voltage (120V/240V).
Pakkeinnhold
Kontroller at pakken inneholder følgende elementer:
- Venstar T4900 Commercial Voyager Thermostat
- Monteringsutstyr (skruer og veggplugger)
- Installasjonsveiledning / brukerhåndbok (dette dokumentet)

Image: Venstar T4900 Thermostat shown alongside its retail packaging, illustrating the product as it appears when unboxed.
Oppsett og installasjon
1. Plassering
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. Slå av
Before beginning installation, ensure the power to your HVAC system is completely turned off at the circuit breaker.
3. Fjern den gamle termostaten
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
- Separate the front cover from the thermostat base.
- Position the thermostat base on the wall, feeding the wires through the opening.
- Merk av monteringshullene. Bor forboringshull om nødvendig.
- Secure the thermostat base to the wall using the provided screws and anchors.

Bilde: Bak view of the Venstar T4900 Thermostat, showing the wiring terminals and mounting plate for installation.
5. Kabling
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 Stages.
Viktig: 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. Innledende konfigurasjon
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.

Bilde: Foran view of the Venstar T4900 Thermostat, displaying its screen and control buttons.
Bruksanvisning
Display og knapper
The T4900 features a large, easy-to-read display with adjustable backlight intensity and backlit, color-coded buttons for intuitive control.
- Pil opp/ned: Adjust temperature setpoints, navigate menus, and change settings.
- Modusknapp: Blar gjennom systemmoduser (oppvarming, kjøling, auto, av).
- Vifte -knapp: Cycles through fan modes (Auto, On).
- Menyknapp: Gir tilgang til avanserte innstillinger og programmeringsalternativer.
Programmering
The T4900 offers flexible programming options:
- 7-dagers programmering: Customize schedules for each day of the week.
- 5+1+1 dags programmering: Set one schedule for weekdays, and separate schedules for Saturday and Sunday.
- 1-dagers 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 (Part Number: 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.
Avanserte funksjoner
- Adjustable Deadbands and Timers: Configure the temperature differential and minimum run times between stages.
- 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.
Vedlikehold
Rengjøring av termostaten
For å opprettholde termostatens utseende og funksjonalitet:
- Tørk av utsiden med en myk, damp klut.
- Ikke bruk skurende rengjøringsmidler eller løsemidler.
- Sørg for at det ikke kommer fuktighet inn i de indre komponentene.
The Venstar T4900 does not use batteries; it is powered by your HVAC system's 24V AC supply.
Feilsøking
| Problem | Mulig årsak | Løsning |
|---|---|---|
| Termostatdisplayet er tomt. | Ingen strøm til termostaten. | Check the circuit breaker for your HVAC system. Ensure all wiring connections are secure. |
| Varme-/kjølesystemet reagerer ikke. | 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. |
| Temperaturavlesningene virker unøyaktige. | Termostatplassering, sensorproblem. | Ensure the thermostat is not exposed to direct sunlight, drafts, or heat sources. If using a remote sensor, verify its placement and connection. |
| Kan ikke koble til Wi-Fi. | Wi-Fi module not installed, incorrect setup, network issues. | Sørg for at 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.
Spesifikasjoner
| Merke | Venstar |
| Modellnavn | Venstar T4900 Commercial Voyager |
| Kontrollertype | Wi-Fi, Amazon Alexa (with ACC-VWF1 module) |
| Spesielle funksjoner | 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 |
| Farge | Hvit |
| Spesifikke bruksområder for produktet | HVAC Control (Heating, Cooling, Humidification, Dehumidification) |
| Temperaturkontrolltype | Both (Heating and Cooling) |
| Tilkoblingsteknologi | Wi-Fi (with ACC-VWF1 module), Z-Wave (optional, not specified in product details), Wireless (Wi-Fi) |
| Strømkilde | AC/DC (24 volt) |
| Voltage | 24 volt |
| Form | Rektangulær |
| Visningstype | Digital |
| Kontroll Type | Knappkontroll |
| Kontrollmetode | Voice (via Alexa with ACC-VWF1), Manual Buttons |
| Tilkoblingsprotokoll | Wi-Fi |
| Monteringstype | Veggfeste |
| Bakgrunnsbelysning | Ja |
| Varevekt | 10.4 unser |
| Produktdimensjoner | 2.3 x 6.3 x 5 tommer |
| Vare modellnummer | T4900 |
| UPC | 748528959706 |
Garantiinformasjon
The Venstar T4900 Commercial Voyager Thermostat comes with a 1 års produsentgaranti. 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 webnettstedet.
Støtte
If you require further assistance, have questions about installation, operation, or troubleshooting, please contact Venstar customer support:
- Visit the official Venstar website for FAQs, support documents, and contact information.
- 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 webnettstedet.