Viconics VT8350 Programmable Thermostats Product Data Sheet

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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Viconics VT8350 Programmable Thermostats Product Data Sheet

Viconics VT8350 Programmable Thermostats Product Data Sheet