Viconics VT8650 Programmable Thermostat
Introduction
Smart energy management has never been easier than with the VT8350 Series Fan Coil Room Controllers. Designed for new construction and retrofit projects, the Room Controllers dramatically decrease project delivery costs by reducing installation, configuration, and commissioning time. No complex software or tools are required to customize functionality in order to meet your application requirements. The Room Controllers provide all the advanced features and monitoring functions required by modern building automation systems in a simple compact enclosure. The VT8350 Room Controllers, part of the VT8000 family, are both application-specific AND programmable. This enables the modification of pre-configured control sequences or the creation of entirely new control sequences for fan coil applications. Their configurable control sequences, economizer, and scheduler functionalities deliver all the flexibility necessary for optimal indoor air quality applications.
Commercial and hospitality
Suitable for both commercial and hospitality markets and systems
7-day occupancy scheduling
2 to 4 events
Wi-Fi option
BACnet/IP and email notification via Wi-Fi (with VCM8002V5031)
Highly configurable
LUA custom programming is available
Digital touch screen
Customizable color digital touchscreen interface with multi-language support
Advanced occupancy functions
For commercial and lodging applications
SPECIFICATIONS
| Parameter | Value |
|---|---|
| Thermostat Power Requirements | Input: 24Vac ±15% recommended, Absolute Max 29.5VAC, 50/60Hz or 24Vdc ±15%<br>Peak device consumption: up to 6VA with CO2 sensor or Wi-Fi module<br>Plus Output Load (max total 94VA)<br>Transformer maximum rating: 100VA, 4.17 A |
| 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 non-condensing<br>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 and 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 |
APPLICATIONS
- Two-pipe fan coil
- Four-pipe fan coil
- 1, 2, or 3-speed fan
- ECM with on/off, floating, or 0 to 10V valve outputs
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
TYPICAL LOW-VOLTAGE FAN COIL APPLICATION
SELECTABLE COLOR SCHEMES
ORDERING INFORMATION
| PART NUMBER | DESCRIPTION |
|---|---|
| VT8350U5000B | RH, Fancoil Control, Low Voltage, BACnet MS/TP |
| VT8350U5500B | RH, PIR, Fancoil Control, Low Voltage, BACnet MS/TP |
| VT8350U5500BP | RH, PIR Room Controller, BACnet MS/TP and Zigbee |
DIMENSIONAL DRAWING
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Reference Link
Download Manual
Viconics VT8350 Programmable Thermostats Product Data Sheet
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