Viconics VT8300 Installation Guide

VT8300 Series Installation Guide

24 Vac Low Voltage

Commercial and Hotel/Lodging HVAC Fan Coil Applications

CONTENTS

Installation 2 Conﬁgurable BI/UI Universal Inputs Overview 3 Setup Screen Display 3 Terminal Identiﬁcation & Function 4

Terminal identiﬁcation 4 Wiring 5

Typical Applications 6

2 pipe systems cooling and/or heating 6 4 pipe systems cooling and heating 7 2 pipe systems cooling or heating with reheat 8

Remote Sensor Accessories 9

Wiring example of single remote room sensor 9 Wiring examples of 2 remote room sensors 10 Wiring examples of 2 remote room sensors 10

Home Screen Display 11 How to Enter Setup Screen 12

INSTALLATION

Preparation

• Remove the security screw (if any) on the bottom of the Terminal Equipment Controller cover.

• Open unit by pulling on bottom side of the Terminal Equipment Controller (Fig. 1).

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

• Ensure correct side of base faces up.

Location

1. Do not install on outside wall.

2. Do not install in areas with direct heat source.

3. Do no install near any air discharge grill.

4. Do not install in areas exposed to direct sunlight.

5. Ensure Controller has sufﬁcient air circulation.

6. Ensure wall surface is ﬂat and clean.

Installation

1. Pull cables 15 cm ( 6” ) out from wall.

2. Align base and mark location of two mounting holes on wall.

3. Install anchors in wall.

4. Insert cable in central hole of base.

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

6. Strip each wire 1/4” ( 0.6 cm) from end.

7. Insert each wire and screw according to wiring chart.

8. Gently push excess wiring back into hole.

9. Gently align cover to top of base and snap in place from bottom.

10. Install security screw.

Installation Guide

Figure-1 Ope n the cover

Figure-2 Install the bas e

VT8300 Series

• If replacing an existing Line Voltage FCU Controller, label wires before removal of Controller.

• Electronic controls are static sensitive devices. Discharge yourself correctly before manipulating and installing Controller.

• A short circuit or wrong wiring may permanently damage Controller or equipment.

• All VT8300 ® series controls 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 (40cm) from all persons and must not be collocated or operating in conjunction with any other antenna

Figure-3 Reinstall cover

or transmitter.

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Installation Guide

VT8300 Series

CONFIGURABLE BI/UI UNIVERSAL INPUTS OVERVIEW

Universal input #16 can be conﬁgured for the following binary functions:

1. (None): No function will be associated with the input

2. (Rem NSB): remote NSB timer clock input. The scheduling will now be

set as per the binary input. It provides low cost setback operation via a dry contact.

Contact opened = Occupied

Contact closed = Unoccupied

3. (Motion NO) and (Motion NC): Advanced PIR occupancy functions using

a normally open (NO) or normally closed (NC) remote PIR motion sensor. Occupancy mode is now set as per applied PIR function and conﬁguration. Application information and examples are available on document: APP-PIRSE8xxx. This document will provide the installers and system designers with detailed examples on applications, parameter conﬁguration information, sequence of operation, troubleshooting and diagnostic help required for the proper usage of the onboard PIR sensor.

4. (Window) EMS: Forces the system to disable any current heating or cooling

action by the Terminal Equipment Controller. The mode stays the same and the current setpoints are the same occupied setpoints. Only the outputs are disabled. There is a Door/Window alarm displayed on the Terminal Equipment Controller to indicate to the local tenant that the door/window needs to be closed for cooling or heating to resume. Use NC contact.

Contact opened = System disabled with local Window alarm

Contact closed = System enabled

Universal input #17 can be conﬁgured for the following binary functions:

1. (None): No function will be associated with the input

2. (Door Dry) Door contact & Motion detector: This conﬁguration is only

functional if binary input #1 is set to Motion NO or Motion NC or an onboard PIR sensor is used. With this sequence enabled, the occupancy is now dictated through those 2 inputs. Any motion detected will set the zone to occupied status. The zone will remain permanently in occupied mode until the door contact switch opens momentarily. The Terminal Equipment Controller will then go in stand-by mode. If more movements are detected, the occupied mode will resume. While the door is opened, any movements detected by the remote PIR sensor or the onboard PIR sensor will be ignored. Use a Normally Closed contact switching device.

4. (Filter): a Filter alarm short text message will be

displayed on the Terminal Equipment Controller screen when the input is energized. It can be tied to a differential pressure switch that monitor ﬁlters

Contact opened = No alarm

Contact closed = Alarm displayed

5. (Service): a Service alarm short text message

will be displayed on the Terminal Equipment Controller screen when the input is energized. It can be tied in to the AC unit control card, which provides an alarm in case of malfunction.

Contact opened = No alarm

Contact closed = Alarm displayed

Universal input #19 can be conﬁgured for the following functions:

1. (None): No function will be associated with the

input

2. (COC/NH) Change over dry contact. Normally Heat: Used for hot / cold air / water

change over switching in 2 pipe systems.

Contact closed = Cold air/water present

Contact opened = Hot air/water present

Only used and valid if Room Controller is set up for a 2 pipe system.

3. (COC/NC) Change over dry contact. Normally Cool: Used for hot / cold air / water

change over switching in 2 pipe systems.

Contact closed = Hot air/water present

Contact opened = Cold air/water present

Only used and valid if Room Controller is set up for a 2 pipe system.

4. (COS) Change over analog sensor: Used for hot / cold air / water change over switching in 2 pipe systems.

Contact opened = Door opened

Contact closed = Door closed

3. (RemOVR): temporary occupancy remote override contact. This function

disables the central button override function on the Terminal Equipment Controller. The override function is now controlled by a manual remote momentarily closed contact. When conﬁgured in this mode, the input operates in a toggle mode. It is now possible to toggle between unoccupied & occupied setpoints for the amount of time set by parameter (TOccTime) temporary occupancy time.

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Only used and valid if Room Controller is set up for a 2 pipe system.

If temperature is > 77 °F = Hot air / water present

If temperature is < 75 °F = Cold air / water present

TERMINAL IDENTIFICATION & FUNCTION

Terminal identiﬁcation

Installation Guide

VT8300 Series

VT83xxU

Description / Application

2 & 4 Pipe 2 & 4 Pipe 2 & 4 Pipe

Control Type = On/Off Control Type = Floating Control Type = Analog

Internal Temperature X X X

Internal Humidity

1- BO1

2- BO2

3- BO3

4- BO4

5- RC / 24 V~ Hot

6- C / 24 V~ Com

7- RH

8- BO8

9- UO9

10- UO10

11- UO 11

12- UO12

Model Dependent Model Dependent Model Dependent

Not used Not used Not used

Fan-L Fan-L Fan-L

Fan-M Fan-M Fan-M

Fan-H Fan-H Fan-H

24 V~ Hot 24 V~ Hot 24 V~ Hot

24 V~ Com 24 V~ Com 24 V~ Com

Aux Heat Aux Heat Aux Heat

Normally Close Cool Valve Close Cool Valve Not used

Normally Close Heat Valve Close Heat Valve Not used

Normally Open Cool Valve Open Cool Valve Analog Heat valve

Normally Open Heat Valve Open Heat Valve Analog Cool Valve

Used in applications

13- RS485 +

14- RS485 -

15- RS485 Ref

16- UI16

17- UI17

18- Common

19- UI19

20- UI20

21- Common

22- UI22

23- UI23

24- UI24

BACnet MS-TP + BACnet MS-TP + BACnet MS-TP +

BACnet MS-TP - BACnet MS-TP - BACnet MS-TP -

BACnet MS-TP Ref BACnet MS-TP Ref BACnet MS-TP Ref

UI16 Function UI16 Function UI16 Function

UI17 Function UI17 Function UI17 Function

Common Common Common

UI19 Function UI19 Function UI19 Function

Remote Room Sensor Remote Room Sensor Remote Room Sensor

Common Common Common

Remote Supply Sensor Remote Supply Sensor Remote Supply Sensor

Not used Not used Not used

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