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White rectangular touchscreen thermostat on wall, WiFi model T8900

Venstar

Venstar T8900 WiFi thermostat with 365-day scheduling

SKU CH-ZHRS-0H5RJ

A commercial thermostat with 365-day scheduling, up to four heat and two cool stages, dual-fuel support, and built-in Wi-Fi with free mobile apps

  • TypeWiFi Thermostats
  • 365-day holiday scheduling matches any calendar
  • Up to 4 heat and 2 cool stages suit gas, electric, heat pump or dual-fuel systems
  • Built-in Wi-Fi with free mobile apps enables remote control
  • Adjustable timers, dead-bands and set-point limiting fine-tune comfort
  • Passcode lock and temperature-range limits secure settings

Commercial WiFi Thermostat

The Venstar T8900 is a commercial-grade WiFi thermostat designed for multi-stage HVAC systems. It suits installers and facility managers who need programmable control over gas, electric or heat-pump equipment with dual-fuel capability.

Build Integration

The unit connects to existing wiring for up to four heat stages and two cool stages. Built-in Wi-Fi links to free mobile apps for remote monitoring, while adjustable timers, dead-bands and set-point limiting let the installer tailor the control loop to the site.

Scheduling Capacity

A 365-day holiday and vacation scheduler handles a full year of setback events without daily intervention. Passcode-protected lockout and temperature-range limiting prevent unauthorised changes, so the programmed schedule remains intact across seasons.

Highlights

  • 365-day holiday scheduling matches any calendar
  • Up to 4 heat and 2 cool stages suit gas, electric, heat pump or dual-fuel systems
  • Built-in Wi-Fi with free mobile apps enables remote control
  • Adjustable timers, dead-bands and set-point limiting fine-tune comfort
  • Passcode lock and temperature-range limits secure settings

Specifications

TypeWiFi Thermostats

Questions about this item

How many heating and cooling stages can the T8900 control?

The thermostat supports up to four heat stages and two cool stages for gas, electric or heat-pump systems.

Does the T8900 generate noticeable heat or fan noise when running continuously?

The unit has no moving parts and no internal fan, so it operates silently and adds negligible heat to the room.

What existing wiring must be in place for the T8900 to function?

A low-voltage HVAC control cable with enough conductors for the required heat and cool stages and a common wire is needed.

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