Viconics Vtr835x0a5x Fancoil Unit Thermostat Retrofit Solution Owner's Manual

VICONICS VTR835x0A5x Fancoil Unit Thermostat Retrofit Solution Owner’s Manual

Commercial and hospitality
Suitable for both commercial and hospitality markets and systems (VTR8300 Series)

Digital touch screen
Customizable color digital touch screen interface with multi-language support (VTR8300 Series)

7-day occupancy scheduling
2 to 4 events (VTR8300 Series)

Extremely compact design
(VC3000 Series)

Highly configurable
LUA custom programming available

90 to 277 Vac
Line powered from 90 to 277 Vac, 50 to 60 Hz (VC3000 Series)

Network Ready, BACnet MS/TP, and Wireless Models Available

VTR835x0A5x

VC3xxxE5000

This two component retrofit option consists of the VTR8300 terminal equipment controller and the VC3000 relay pack. Together, they provide an easy solution for retrofitting fan coil unit thermostats without requiring upgrades to other components such as relays, transformers, controllers, sensors, and network wiring. Existing line voltage wiring between the fan coil unit and temperature controller can be reused, further minimizing overall labor and installation costs.

The VC3000 relay pack features an onboard universal voltage power supply and line-voltage relays that directly drive fractional horsepower fan motors and valves. The VTR8350 controller features a fully digital multi-language touch screen display that can be user customized.
The controller’s built-in commissioning and configuration utility, its temperature sensor, and the optional humidity and occupancy sensor, provide maximum flexibility. The VTR8350 controller is available in Network Ready, BACnet® MS/TP or wireless Zigbee networked models.

SPECIFICATIONS

• Thermostat Power Requirements: 7 Vdc, 2.4 W min. (from VC3000)
• Operating Conditions: 0 to 50 °C (32 to 122 °F); 0 to 95% RH non-condensing
• Storage Conditions: -30 to 50 °C (-22 to 122 °F); 0 to 95% RH non-condensing
• Temperature Sensor: Local 10k NTC type 2 thermistor
• Temp. Sensor Resolution: ± 0.1 °C (± 0.2 °F)
• Temp. Control Accuracy: ±0.5 °C (±0.9 °F ) @ 21 °C (70 °F) typical calibrated
• Humidity Sensor and Calibration: Single point calibrated bulk polymer sensor
• Humidity Sensor Precision: Reading range from 10 to 90% RH noncondensing 10 to 20% precision is 10%;
  20 to 80% precision is 5%;
  80 to 90% precision is 10%
• Humidity Sensor Stability: <1.0% annual drift (typical)
• Dehumidification Setpoint Range: 30 to 95% RH
• Occupied and Unoccupied Setpoint Range Cooling: 12 to 38 °C (54 to 100 °F)
• Occupied and Unoccupied Setpoint Range Heating: 5 to 32 °C (40 to 90 °F)
• Room and Outdoor Air Temperature Display: -40 to 50 °C (-40 to 122 °F)
• Proportional Band for Room Temperature Range Control: Cooling & Heating: 1.8 °C (3.2 °F )
• Binary Inputs: Dry contact across terminal BI1, BI2 & UI3 to Scom
• Economizer Analog Output Rating: 0 to 10 Vdc into 2k Ω resistance min.
• Economizer Analog Output Accuracy: ±3% typical
• Wire Gauge: 18 gauge maximum, 22 gauge recommended

WARRANTY

• Limited Warranty: 18 months

AGENCY APPROVALS

UL: 61010-1 (2nd edition); CSA: 61010-1 (3rd edition); IEC: 61010-1 (3rd edition), EN 60950-1: 2006A2: 2013, UL 873, CSA 22.2 No. 24-93; 61326-1:2005; FCC: Part 15, Subpart B

WALL CONTROLLERS

Ordering Information

RELAY PACKS

APPLICATIONS

Wall Control and Relay Pack Applications (BACnet models shown, wireless similar)

WIRING EXAMPLES

DIMENSIONAL DRAWING

SELECTABLE COLOR SCHEMES

References

• Viconics | Viconics