Viconics VT8300 Series Installation Manual

VT8300 Series Installation Guide

24 Vac Low Voltage

Commercial and Hotel/Lodging HVAC Fan Coil Applications for 1, 2, 3-speed or ECM motors

• If replacing an existing Room Controller, label wires before removal of 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 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.

LOCATION

• Do not install on outside wall.

• Do not install behind a door.

• Do not install in areas with direct heat source.

• Do not install near any air discharge grill.

• Do not install in areas exposed to direct sunlight.

• Ensure Room Controller has sufficient natural air circulation.

• Ensure wall surface is flat and clean.

• Ensure external thermal sensor wirings are away from noisy electrical sources.

• Install 1.3 to 1.5 meter (52 to 60 inches) above the floor.

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).

• Performance can be affected if the glass on the screen is broken.

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

INSTALLATION

Installation

1. Remove security screw (if any) on bottom of Room Controller cover.

2. Open unit by pulling on bottom side of Room Controller (Figure 1).

3. Read FCC ID and IC label installed in cover before installing any
wireless product.

4. Ensure correct side of base faces up.

3

5. Pull cables 6in (15cm) out from wall.

6. Align base and mark location of two mounting holes on wall (Figure 2).

7. Install anchors in wall.

8. Insert cable in central hole of base.

9. Insert screws in mounting holes on each side of base.

10. Strip each wire 1/4in (0.6cm) from end.

11. Insert each wire and screw according to wiring chart (see following
pages).

12. Gently push excess wiring back into hole.

13. Gently align cover to top of base and snap in place from bottom
(Figure 3).

14. Install security screw.

Figure 1 Open the cover

Figure 2 Install the base

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Figure 3 Reinstall cover

4

TERMINAL IDENTIFICATION AND FUNCTION

Terminal identification for 3-Speed Fan System

Fan Type - 3-Speed

Control Type On/Off Floating Analog

1- BO1 Not used Not used Not used

2- BO2 Fan-L Fan-L Fan-L

3- BO3 Fan-M Fan-M Fan-M

4- BO4 Fan-H Fan- H Fan-H

5- RC / 24 V~ Hot 24 V~ Hot 24 V~ Hot 24 V~ Hot

6- C / 24 V~ Com 24 V~ Com 24 V~ Com 24 V~ Com

7- RH Aux Heat Aux Heat Aux Heat

8- BO8 Aux Heat Aux Heat Aux Heat

9- UO9 Normally Close Cool Valve Close Cool Valve Not used

10- UO10 Normally Close Heat Valve Close Heat Valve Not used

11- UO11 Normally Open Cool Valve Open Cool Valve Analog Heat Valve

12- U O12 Normally Open Heat Valve Open Heat Valve Analog Cool Valve

13- RS485 + RS485 +

14- RS485 - RS485 -

15- RS485 Ref RS485 Ref

16- UI16 UI16 Function

17- U I17 UI17 Function

18- Scom Common

19- UI19 UI19 Function

20- UI20 Remote Room Sensor

21- Scom Common

22- UI22 Remote Supply Sensor

23- UI23 Not used

24- UI24 Not used

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Terminal identification for ECM Fan System

Fan Type - ECM

Control Type On/Off Floating Analog

1- BO1 Normally Close Heat Valve Close Heat valve Not used

2- BO2 Not used Not used Not used

3- BO3 Not used Not used Not used

4- BO4 ECM Fan Star t ECM Fan Star t ECM Fan Star t

5- RC / 24 V~ Hot 24 V~ Hot 24 V~ Hot 24 V~ Hot

6- C / 24 V~ Com 24 V~ Com 24 V~ Com 24 V~ Com

7- RH Aux Heat Aux Heat Aux Heat

8- BO8 Aux Heat Aux Heat Aux Heat

9- UO9 Normally Close Cool Valve Close Cool Valve Not used

10- UO10 Analog ECM Fan Analog ECM Fan Analog ECM Fan

11- UO11 Normally Open Cool Valve Open Cool Valve Analog Heat valve

12- U O12 Normally Open Heat Valve Open Heat Valve Analog Cool Valve

13- RS485 + RS485 +

14- RS485 - RS485 -

15- RS485 Ref RS485 Ref

16- UI16 UI16 Function

17- U I17 UI17 Function

18- Scom Common

19- UI19 UI19 Function

20- UI20 Remote Room Sensor

21- Scom Common

22- UI22 Remote Supply Sensor

23- UI23 Not used

24- UI24 Not used

5

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6

Wiring - Single or Multispeed Motor

Power and Fan

3 Speed 2 Speed Single Speed

LOW LOW

LOW LOW

MED

MED

HIGH HIGH

BO8 Auxiliary Output Wiring

Dry contact to end device 24 V~ maximum 24 Vac power to relay

RC (24 Vac)

C (Common)

R

RH

BO8 - Aux Heat

RC (24 Vac)

C (Common)

RH

BO8 - Aux Heat

HIGHHIGH HIGH

HIGH

24 Vac

Transformer

R

Wiring ECM Motor

Power and Fan

4

BO4 - Fan H

RC (24 Vac)

C (Common)

UO10 ECM Fan

24Vac signal to start fan (optional)

0 - 10Vdc signal

Relay Coil

24Vac

Transformer

-

+

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Main Outputs Wiring

2 Pipe Applications

Com
24Vac

Com

4 Pipe Applications

2 Pipe Applications 4 Pipe Applications

Com
24Vac

Com
24Vac

Com
Open
Close

Com
Open

Com
24Vac

Com
24Vac

Com
Open
Close

Com
24 Vac

0-10 Vdc

Com

Com
24Vac

Com
24Vac

Com
Open
Close

Com
Open
Close

Com
24Vac

Com
24Vac

Com
Open
Close

Com
Open
Close

7

2 Pipe Applications 4 Pipe Applications

Control type = On-Off

UO9

UO11

UO11

UO9

UO12

Heating / Cooling valve

OR

Com
24Vac

UO10 NC

UO12 NO

UO09 NC

UO11 NO

Com

OR

OR

24Vac

Com
24Vac

Heating valve

Cooling valve

Floating control

Heating / Cooling valve

Com
Open
Close

UO12

UO10

UO11

UO9

Com
Open
Close

Com
Open
Close

Heating valve

Cooling valve

Analog control

Heating / Cooling valve

Com
24Vac
0-10Vdc

UO11

UO12

Com
24 Vac

0-10 Vdc

Com
24 Vac

0-10 Vdc

Heating valve

Cooling valve

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8

1 2

REMOTE SENSOR ACCESSORIES

Model no. Description

S3010W1031 Wall mounted temperature sensor

S3020W1031 Wall mounted temperature sensor with override button and occupancy status LED

The VT8300 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 into 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

• Optional occupancy led

• Optional override key

Wiring example of single remote room sensor

VT8300

Series Controller

Common

UI 20

BO8

24 Vac Com

UI17

Temperature vs. resistance chart for 10 Kohm NTC thermistor (R25°C = 10KΩ±3%, B25/85°C = 3975K±1.5%)

ºC ºF Kohm ºC ºF Kohm ºC ºF Kohm ºC ºF Kohm ºC ºF Kohm

-40 -40 324.3197 -20 -4 94.5149 0 32 32.1910 20 68 12.4601 40 104 5.3467

-35 -31 234.4009 -15 5 71.2430 5 41 25.1119 25 77 10.0000 45 113 4.3881

-30 -22 171.3474 -10 14 54.1988 10 50 19.7390 30 86 8.0694 50 122 3.6202

-25 -13 126.6109 -5 23 41.5956 15 59 15.6286 35 95 6.5499 55 131 3.0016

S3020W1031

Remote wiring 1 sensor

S2-1= On, S2-2=On

SCom

OR

RS

Aux

C

DI

Dip switch
setting for:

1 sensor

S3010W1031

Remote wiring 1 sensor

S2-1= On, S2-2=On

SCom

RS

ON

S2-1 = ON

S2-2 = ON

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HOME SCREEN DISPLAY

9

Hospitality User Interface Shown

Date

Occupancy Status

Indoor Temperature

Indoor Humidity

Outdoor Temperature

System Mode

Short Network

Message

Time
System Status

Fan Status

Up Arrow
Increase Temperature Setpoint

Actual Setpoint

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.

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Fan Mode

Temperature Units

Language Selection

10

HOW TO ENTER SET-UP SCREEN

SET-UP SCREEN DISPLAY

1/2 Setup

Touch and hold this point
for 3 seconds to enter set-up mode

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

For more information on using and
configuring the functions of the HMI,
refer to the VT8300 User Interface

Guide

Network

Configuration

Setpoints - Display

Service View

Test Outputs

Language Selection

Return to
home screen

Enter BACnet® & ZigBee® network settings

Enter parameter configuration menu

Enter setpoint & display settings

Enter status and service view

Enter output testing mode

Enter language selection

General Note:

Adjustable parameter

Nonadjustable parameter

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APPENDIX A TERMINAL CORRESPONDENCE

The terminals of a VT8300 are identified differently and have a wider range of possible functions compared to those of any of the
VT7300 series Room Controllers. Nonetheless, there is a direct correspondence of functions between the terminals of the VT7300
series and the VT8300 series. Consult the table below to verify the appropriate terminal when replacing a VT7300 Room
Controller with a VT8300 Room Controller.

VT7300 VT8300

Terminal name Terminal ID Terminal name Terminal ID

Binary Input 1 BI1 Universal Input 16 UI16

Binary Input 2 BI2 Universal Input 17 UI17

Universal Input 3 UI3 Universal Input 19 UI19

Sensor Common Scom Terminal 18 Common COM

Remote Sensor RS Universal Input 20 UI20 - RS

Sensor Common Scom Terminal 21 Common COM

Mix/Supply Sensor MS Universal Input 22 UI22 - SS

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APPENDIX B POWER OUTAGE CLOCK RESET

In the event of a power outage, VT8300 Room Controllers retain the correct time as long as the duration of the power outage is
not prolonged. Depending on the duration of the power outage, the Room Controllers internal clock may need to be updated or
reset completely. The following table gives an indication of the expected clock performance after a power outage.

Outage duration Room Controller behaviour

0 - 24 hours Clock functions are normal

24 - 36 hours Clock accuracy not guaranteed, time may need to be adjusted

36 - 72 hours Clock no longer increments and must adjusted when power is

restored

72+ hours Clock functions are fully reset, and must be reinitialized as per a new

installation

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