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VZ8250U5000B | Schneider Electric Buildings | Thermostats & Controllers


Manufacturer:Schneider Electric Buildings



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product family specifications

 Power Input

 24VAC ±15% recommended, Absolute Max 29.5VAC, 50/60Hz or 24Vdc ±15% 

 Peak Device Consumption

 Up to 6VA with CO2 sensor or Wi-Fi module 

 Plus Output Load

 Max Total 94VA

 Transformer Maximum Rating

100VA, 4.17 A

 Output Rating

 Nine Electronic Relays

 24VAC or 24VDC ± 15% same as input power, 1.0 Amp., in-rush = 3.0 Amps

 Four Analog Outputs

 0 - 10 Vdc, 5mA maximum, (2 kilo-ohm resistance)
Configurable Output Analog/Electronic Relay

 Operating Conditions

 0 °C to 50 °C (32 °F to 122 °F); 0% to 95% R.H. non-condensing

 Storage Conditions

 -30 °C to 50 °C (-22 °F to 122 °F); 0% to 95% R.H. non-condensing

 Temperature Sensor

 Local 10 K NTC type 2 thermistor

 Temperature Sensor  Resolution

 ± 0.1ºC ( ± 0.2ºF) 

 Temperature Control Accuracy

 ± 0.5ºC ( ± 0.9ºF) @ 21ºC (70ºF) typical calibrated

 Humidity Sensor Precision

 Reading range from 10-90% RH, non-condensing;  10% to 20% precision: 10%;  20% to 70% precision: 5%;  70% to 90% precision: 10% 

 Humidity Sensor Stability

 Less than 0.25% yearly (typical drift)

 Occ. Unocc and Standby Cooling Setpoint Range

 12.0ºC to 37.5ºC (54ºF to 100ºF) 

 Occ. Unocc and Standby Heating Setpoint Range

 4.5ºC to 32ºC (40ºF to 90ºF) 

 Room and Outdoor Air Temperature Display Range

 -40ºC to 50ºC (-40ºF to 122ºF)

 Proportional Band for Room Temperature Control

 Cooling and Heating: Default: 1.8ºC (3.2ºF) 

 Analog Inputs

 Modulating 0-10 VDC across UI19, UI24 to Common

 Binary Inputs

 Dry contact across terminals UI16, UI17 to Common

 Remote Temperature Sensor

 10 K NTC Type 2 thermistor UI20, UI22, UI23

 Wire Gauge

 Power supply: 16 or 18 gauge; Communications: 22 gauge typical, 24 gauge minimum 

 Shipping Weight     

 0.34 kg (0.75 lb)


 12cm/4.72in (H) x 8.6cm/3.38in (W) x 2.5cm/1in (D)


 0.75 lb (0.34 kg)


 1 year

product family features

  • Low-voltage microprocessor-based Variable Air Volume (VAV) controller.
  • Configurable to support damper control for Pressure Independent (PI), and Pressure Dependent (PD) VAV systems.
  • Pre-programmed, containing all required I/O to accomplish VAV application.
  • Embedded local configuration utility using the touch screen allowing for simplified configuration, sequence selection, re-
  • initialization, setting of setpoints, and control of display settings.
  • Accurate temperature control using a PI (Proportional-Integral) algorithm.
  • Integrated changeover function.
  • Configurable temporary or permanent local override setpoints.
  • Local or remote override during unoccupied mode.
  • Adjustable local unoccupied heating and cooling setpoint limits, as well as maximum heating and minimum cooling limits.
  • Adjustable dead and proportional bands.
  • Remote night set back.
  • Door, window, wall, ceiling, or motion detection.
  • Custom programs using Lua Scripts.

more information & related documents

Family Description

The VZ8250 Room Controller is a new cost-effective solution that provides contractors with an easy to implement solution for Variable Air Volume (VAV) applications. It is designed for zone temperature control in Variable Air Volume systems. An Air Handling unit and a VAV rooftop unit serve many zones within a building by supplying a varying amount of supply air at a constant supply air temperature. Additional flexibility and energy savings can be achieved with optional wireless door, window, motion and water leak sensors. An elegantly simple casing combines with configurable screen colors to match decor. Display your own logo and custom messages on screen to reinforce your brand and provide a more enjoyable occupant experience.

Kele Description



Schneider Electric Buildings

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