VT8000 Room Controllers

VT8350 Installation Guide

Low Voltage (24VAC) Fan Coil Unit (FCU) and Zone Control

Firmware Revision 2.4

1. SAFETY INFORMATION

1.1 IMPORTANT INFORMATION

Read these instructions carefully and look at the equipment to become familiar with the device before trying to install, operate, service or maintain it. The following special messages may appear throughout this bulletin or on the equipment to warn of potential hazards or to call attention to information that clarifies or simplifies a procedure.

The addition of either symbol to a "Danger" or "Warning" safety label indicates that an electrical hazard exists which will result in personal injury if the instructions are not followed. This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

DANGER

DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.

WARNING

WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

NOTICE

NOTICE is used to address practices not related to physical injury. The safety alert symbol shall not be used with this signal word.

1.2 PLEASE NOTE

Electrical equipment should be installed, operated, serviced, and maintained only by qualified personnel. No responsibility is assumed by Viconics Technologies for any consequences arising out of the use of this material. A qualified person is one who has skills and knowledge related to the construction, installation, and operation of electrical equipment and has received safety training to recognize and avoid the hazards involved.

1.3 BEFORE YOU BEGIN

LOSS OF CONTROL

WARNING

The designer of any control scheme must consider the potential failure modes of control paths and, for certain critical control functions, provide a means to achieve a safe state during and after a path failure. Examples of critical control functions are emergency stop and over travel stop.

  • Separate or redundant control paths must be provided for critical control functions.
  • System control paths may include communication links. Consideration must be given to the implications of anticipated transmission delays or failures of the link.
  • Each implementation of equipment utilizing communication links must be individually and thoroughly tested for proper operation before being placed into service.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

ELECTROSTATIC DISCHARGE

NOTICE
STATIC SENSITIVE COMPONENTS

Circuit boards and option cards can be damaged by static electricity. Observe the electrostatic precautions below when handling controller circuit boards or testing components.

Failure to follow these instructions can result in equipment damage.

Precautions for handling static-sensitive components:
  • Keep static-producing material such as plastic, upholstery, and carpeting out of the immediate work area.
  • Store static-sensitive components in protective packaging when they are not installed in the drive.
  • When handling a static-sensitive component, wear a conductive wrist strap connected to the component or drive through a minimum of 1 megohm resistance.
  • Avoid touching exposed conductors and components leads with skin or clothing.

INSTALLATION

NOTICE
INSTALLATION
  • The system must be installed correctly by a qualified technician.
  • If replacing an existing Room Controller, label wires before removal of the Controller.
  • Electronic controls are static sensitive devices. Discharge yourself correctly before manipulating and installing Room Controller.
  • A short circuit or wrong wiring may permanently damage the Room Controller or equipment.
  • All Room Controllers are designed for use as operating controls only and are not safety devices. Tampering with the devices or unintended application of the devices will result in a void of warranty.
  • This device must be installed to provide a separation distance of at least 8in (20cm) from all persons and must not be located or operating in conjunction with any other antenna or transmitter.
  • Refer to the Room Controller User Interface Guide for information on how to configure the Room Controller.

Failure to follow these instructions can result in equipment damage.

LOCATION

NOTICE
LOCATION
  • Do not install on an exterior wall.
  • Do not install behind a door.
  • Do not install in areas with a direct heat source.
  • Do not install near any air discharge grill.
  • Do not install in areas exposed to direct sunlight.
  • Ensure the Room Controller has sufficient natural air circulation.
  • Ensure the wall surface is flat and clean.
  • Ensure external thermal sensor wirings are away from noisy electrical sources.
  • Install 1.3 to 1.5 meters (52 to 60 inches) above the floor.
  • Perform preventive maintenance on the damper and Variable Air Volume (VAV) box, according to the supplier documentation.

Failure to follow these instructions can result in equipment damage.

CLEANING THE ROOM CONTROLLER

NOTICE
CLEANING THE ROOM CONTROLLER
  • Use a soft, pre-moistened lint-free cloth for cleaning.
  • Avoid getting moisture in openings.
  • Do not spray anything directly on the Room Controller or use compressed air.
  • Do not use caustic/corrosive products, ammonia, solvents or any cleaning product containing alcohol or grit.
  • Never use tools directly on the touchscreen.
  • Never use paint on the Room Controller.
  • Do not drop or crush the Room Controller, or allow it to come into contact with liquids.
  • Do not use a damaged device (such as one with a cracked screen).

Failure to comply with these recommendations will result in damage to the unit and void the manufacturer's warranty.

2. INSTALLATION

  1. Remove the security screw (if applicable) from the bottom of the Room Controller cover.
  2. Open the unit by pulling on the bottom side of the Room Controller. [Description of Figure 1: Shows the Room Controller cover being opened.]
  3. Read the FCC ID and IC label installed inside the cover before installing any wireless product.
  4. Ensure the correct side of the base faces up.
  5. Pull the cables 6in (15cm) out from the wall.
  6. Align the base and mark the location of the two mounting holes on the wall.
  7. Install the anchors in the wall. [Description of Figure 2: Shows the mounting base with anchors being installed.]
  8. Insert the cable in the central hole of the base.
  9. Insert the screws in the mounting holes on each side of the base.
  10. Strip each wire 1/4in (0.6cm) from the end.
  11. Insert each wire and screw according to the wiring chart (see following pages).
  12. Gently push excess wiring back into the hole.
  13. Gently align the cover with the top of the base and snap it into place from the bottom. [Description of Figure 3: Shows the Room Controller cover being reinstalled.]
  14. Install the security screw (if applicable).

3. TERMINAL IDENTIFICATION AND FUNCTION

3.1 TERMINAL IDENTIFICATION FOR 3-SPEED FAN SYSTEM

Fan Type - 3-SpeedControl TypeOn/OffFloatingAnalog
1- BO1Not usedNot usedNot used
2- BO2Fan-LFan-LFan-L
3- BO3Fan-MFan-MFan-M
4- BO4Fan-HFan-HFan-H
5- RC / 24 V~ Hot24 V~ Hot24 V~ Hot24 V~ Hot
6- C / 24 V~ Com24 V~ Com24 V~ Com24 V~ Com
7- RHAux HeatAux HeatAux Heat
8- BO8Aux HeatAux HeatAux Heat
9- UO9Normally Close Cool ValveClose Cool ValveNot used
10- UO10Normally Close Heat ValveClose Heat ValveNot used
11- UO11Normally Open Cool ValveOpen Cool ValveAnalog Heat Valve
12- UO12Normally Open Heat ValveOpen Heat ValveAnalog Cool Valve
13- RS485 +RS485 +RS485 +
14- RS485-RS485 -RS485 -
15- RS485 RefRS485 RefRS485 Ref
16- UI16UI16 FunctionUI16 Function
17- UI17UI17 FunctionUI17 Function
18- ScomCommonCommon
19- UI19UI19 FunctionUI19 Function
20- UI20Remote Room SensorRemote Room Sensor
21- ScomCommonCommon
22- UI22Remote Supply SensorRemote Supply Sensor
23- UI23Not usedNot used
24- UI24Not usedNot used

3.2 TERMINAL IDENTIFICATION FOR ECM FAN SYSTEM

Fan Type - ECMControl TypeOn/OffFloatingAnalog
1- BO1Normally Close Heat ValveClose Heat valveNot used
2- BO2Not usedNot usedNot used
3- BO3Not usedNot usedNot used
4- BO4ECM Fan StartECM Fan StartECM Fan Start
5- RC / 24 V~ Hot24 V~ Hot24 V~ Hot24 V~ Hot
6- C / 24 V~ Com24 V~ Com24 V~ Com24 V~ Com
7- RHAux HeatAux HeatAux Heat
8- BO8Aux HeatAux HeatAux Heat
9- UO9Normally Close Cool ValveClose Cool ValveNot used
10- UO10Analog ECM FanAnalog ECM FanAnalog ECM Fan
11- UO11Normally Open Cool ValveOpen Cool ValveAnalog Heat valve
12- UO12Normally Open Heat ValveOpen Heat ValveAnalog Cool Valve
13- RS485 +RS485 +RS485 +
14- RS485-RS485 -RS485 -
15- RS485 RefRS485 RefRS485 Ref
16- UI16UI16 FunctionUI16 Function
17- UI17UI17 FunctionUI17 Function
18-ScomCommonCommon
19- UI19UI19 FunctionUI19 Function
20- UI20Remote Room SensorRemote Room Sensor
21-ScomCommonCommon
22- UI22Remote Supply SensorRemote Supply Sensor
23- UI23Not usedNot used
24- UI24Not usedNot used

3.3 WIRING - SINGLE OR MULTISPEED MOTOR

Power & Fan

Wiring for 3-Speed, 2-Speed, and Single-Speed fans, showing connections to BO2 (Fan L), BO3 (Fan M), BO4 (Fan H), RC (24 Vac), and C (Common) terminals, connected to a 24 Vac Transformer.

BO8 Auxiliary output wiring

Description of auxiliary output wiring for BO8, showing dry contact to end device (24 Vac maximum), with connections to RC (24 Vac), C (Common), RH, and BO8 - Aux Heat terminals, and a 24 Vac power to relay.

Wiring ECM Motor

Description of wiring for ECM Motor Power and Fan, showing connections from BO4 (Fan H) for a 24Vac signal to start the fan (optional), RC (24 Vac), C (Common), and UO10 ECM Fan for a 0-10Vdc signal, all connected to a 24 Vac Transformer and Relay Coil.

3.4 MAIN OUTPUTS WIRING

2 Pipe Applications

Wiring for 2-pipe applications with On/Off control, showing connections for heating/cooling valves using UO9 and UO11 terminals, and UO10 NC / UO12 NO terminals, all connected to 24Vac.

4 Pipe Applications

Wiring for 4-pipe applications with On/Off control, showing connections for heating and cooling valves using UO9, UO11, UO10, and UO12 terminals, all connected to 24Vac.

Floating control

Wiring for floating control in 2-pipe and 4-pipe applications, showing connections for heating/cooling valves using UO9, UO11, UO12, and UO10 terminals, with descriptions for 'Open' and 'Close' states.

Analog control

Wiring for analog control in 2-pipe and 4-pipe applications, showing connections for heating and cooling valves using UO9, UO11, UO12, and UO10 terminals, with 0-10Vdc signals.

3.5 REMOTE SENSOR ACCESSORIES

Model no.Description
S3010W1031Wall-mounted temperature sensor
S3020W1031Wall-mounted temperature sensor with override button and occupancy status LED

The VT8350 Room Controller is compatible with remote mount temperature sensors using 10K type 2 NTC thermistors.

NOTE: If one or multiple sensor(s) is/are connected to the RS terminal, the internal temperature sensor is automatically disabled. Disconnecting the sensor(s) in the RS terminal will re-activate the internal sensor.

Features:

  • Each sensor can be configured for various averaging combinations (refer to S3000 remote sensors for more details)
  • Optional occupancy led
  • Optional override key

Wiring example of single remote room sensor:

Shows wiring examples for the VT8350 Series Controller with S3020W1031 and S3010W1031 remote sensors, detailing connections to SCom, RS, Aux, C, DI, and Common terminals.

Temperature vs. resistance chart for 10 Kohm NTC thermistor

A table detailing the relationship between temperature (in Celsius and Fahrenheit) and resistance (in Kohm) for a 10 Kohm NTC thermistor, with specific values for R25°C = 10KΩ±3% and B25/85°C = 3975K±1.5%.

4. HOME SCREEN DISPLAY

Hospitality User Interface Shown.

The display shows the following information:

  • Date
  • Occupancy Status
  • Indoor Temperature
  • Indoor Humidity
  • Outdoor Temperature
  • System Mode
  • Short Network Message
  • Fan Mode
  • Language Selection
  • Temperature Units
  • Time
  • System Status
  • Fan Status
  • [Up Arrow] Increase Temperature Setpoint
  • Occupied Setpoint of Current System Mode
  • [Down Arrow] Decrease Temperature Setpoint
  • Help

NOTE: User HMI is configurable and allows display functions such as Date, Time, Humidity, Outdoor Temperature, Setpoint, and others to be enabled or disabled by setting various parameters.

5. HOW TO ENTER SET-UP SCREEN

Touch and hold the screen for 3 seconds to enter set-up mode.

NOTE: If a configuration/installer password is activated to prevent unauthorized access to the configuration menu parameters, a password entry prompt shows to prevent access to the device configuration components.

For more information on using and configuring the functions of the HMI, refer to the VT8350 User Interface Guide.

6. SET-UP SCREEN DISPLAY

The set-up screen allows access to various configuration menus:

  • 1/2 Setup
  • Network: Enter BACnet® & Zigbee® network settings
  • Configuration: Enter parameter configuration menu
  • Setpoints: Enter setpoint settings
  • Display: Enter display settings
  • Service view: Enter status display (read only)
  • Test Outputs: Enter test outputs settings

[Icon representing return to home screen] Return to the home screen

General Note:
  • [Icon representing adjustable parameter] Adjustable parameter
  • [Icon representing non-adjustable parameter] Nonadjustable parameter

APPENDICES

APPENDIX A. TERMINAL CORRESPONDENCE

The terminals of a VT8350 are identified differently and have a wider range of possible functions compared to those of any of the VT7000 Room Controllers. This table shows the direct correspondence of functions between the terminals of the VT7000 and the VT8350 for replacement purposes.

VT7000 Terminal nameVT7000 Terminal IDVT8350 Terminal nameVT8350 Terminal ID
Binary Input 1BI1Universal Input 16UI16
Binary Input 2BI2Universal Input 17UI17
Universal Input 3UI3Universal Input 19UI19
Sensor CommonScomTerminal 18 CommonCOM
Remote SensorRSUniversal Input 20UI20 - RS
Sensor CommonScomTerminal 21 CommonCOM
Mix/Supply SensorMSUniversal Input 22UI22 - SS

APPENDIX B. POWER OUTAGE CLOCK RESET

In the event of a power outage, VT8350 Room Controllers retain the correct time as long as the duration of the power outage is not prolonged. The following table indicates the expected clock performance after a power outage of a given duration, and when the internal clock may need to be updated or reset.

Outage durationRoom Controller behavior
0 - 24 hoursClock functions are normal
24 - 36 hoursClock accuracy not guaranteed, time may need to be adjusted
36 - 72 hoursClock no longer increments and will need to be adjusted when power is restored.
72+ hoursClock functions are fully reset, and will need to be reinitialized as per a new installation.

APPENDIX C. DEPLOYMENT

The placement of the Room Controller must be given consideration. It is recommended to install the Room Controller as close to a door as possible (without being blocked by the door), or in an area with high occupant movement. Ideally, the Room Controller should be installed 5 feet (1.5 meters) above the floor surface to ensure maximum detection range is achieved. As well, Room Controller placement should ensure the occupant crosses the lens beam in a perpendicular path within the prescribed detection zone.

C.1 EXAMPLE OF RECOMMENDED DEPLOYMENT

The below shows Room Controllers installed in ideal locations for two rooms. The examination room shows one Room Controller installed adjacent to the door. In this area of the room, occupant traffic is high and ensures the occupant will almost always cross the PIR detection path laterally and within the detection range. The waiting room shows one Room Controller installed beside a door in the middle of the room. As shown in the diagram below, occupant traffic is high in several areas of the room including the entrance, waiting room, access to the door and activity around the reception desk.

[Description of diagram: Shows a floor plan with recommended placement of Room Controllers, highlighting areas of high occupant traffic and optimal PIR detection paths.]

C.2 EXAMPLE OF NON-RECOMMENDED DEPLOYMENT

The below shows four Room Controllers (two for each room) installed in non-ideal locations for the two rooms. The examination room shows one Room Controller installed in a low traffic area near the door, and a second Room Controller installed on the wall directly opposite the door. For the Room Controller installed in the corner wall, the PIR could be blocked by the opened door, while occupant traffic could also be minimal in this area of the room. For the second Room Controller installed opposite the door, the PIR detection could fall outside the specified detection zone, while at the same time most occupant movement would not be lateral to the PIR, thereby not respecting optimal crossing patterns for PIR detection. The waiting room shows one Room Controller installed in the corner of the room, and a second Room Controller installed beside the reception area. For the Room Controller installed in the corner, the opening/closing of the door creates a high probability that the PIR would get blocked, and therefore, occupancy going undetected. For the Room Controller installed beside the reception area, occupant traffic could fall outside the detection zone, and the receptionist would often be below the 5-foot recommended installation height for the Room Controller.

[Description of diagram: Shows a floor plan with non-recommended placement of Room Controllers, illustrating potential issues like blocked PIR detection and poor coverage.]

C.3 ROOM CONTROLLER PIR SENSOR DETAILS

The internal Room Controller PIR sensor only detects lateral movement. It cannot detect movement when a person is moving toward it. It will not detect someone seating on a chair and/or lying on the bed.

[Description of diagram: Illustrates the PIR sensor's detection pattern, showing lateral movement detection range (e.g., 40°, 80°, 120°) and indicating that movement towards the sensor or stationary occupants are not detected. Dimensions like 4-5m, 6m, 6.1m, 4.3m, 3.4m are shown for scale and coverage.]

C.4 RECOMMENDATIONS FOR INSTALLATIONS

  1. Install the Room Controller to cover more lateral movement.
  2. Install a door sensor; the internal Room Controller occupancy logic works better with a door sensor. Once a motion is detected after a door is opened, the room stays in an occupied state until the door is opened again, which puts the Room Controller in stand-by mode. If there is motion, it goes back to occupied mode. It is also recommended to disable the unoccupied mode, setting the "unoccupied time" to 0, so there are only 2 modes in the Room Controller: stand-by and occupied for a standalone solution. Please refer to the two diagrams below for the Room Controller internal occupancy states transition.

[Description of diagram 1: Illustrates occupancy state transitions for a system with internal and/or external motion sensors, showing states like Stand-by, Occupied, Motion detected, No motion after stand-by time.]

[Description of diagram 2: Illustrates occupancy state transitions for a system with a door sensor, internal and/or external motion sensors, showing states like Stand-by, Occupied, Door closed for at least 15 secs & motion detected, Door opened/closed & door closed for at least 15 secs. This system offers better energy savings and guest experience.]

More aggressive energy savings logic but may cause a bad guest experience (when a guest is sleeping or not moving).

Good energy savings logic and better guest experience even when a guest is sleeping or not moving.

  1. Install additional motion sensors in the bathroom.
  2. Install additional motion sensors for better motion detection in the entire room.

C.5 ENERGY SAVINGS

PIR can maximize your energy saving from 10-30% by adjusting temperature set points in unoccupied zones during scheduled periods.

[Description of graph: A line graph titled "Typical Savings of 10-30%". The X-axis represents "Time of Day (EST)" from 0 to 24. The Y-axis on the left shows "Energy Usage (KWh)" and on the right shows "Saving Percentage" from 0% to 50%. Three lines are plotted: "Typical Consumption" (red), "PIR Thermostat Consumption" (blue), and "Savings" (green).]

APPENDIX D. CALIFORNIA PROPOSITION 65 WARNING STATEMENT FOR CALIFORNIA RESIDENTS

[Warning Symbol] WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm, and Bisphenol A (BPA), which is known to the State of California to cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

Models: VICONICS, VT8350, VT8000, Room, Controllers, Low Voltage, 24VAC, Fan Coil Unit, FCU, and, Zone Control

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