Viconics VTR7300 Integration Manual

PIR Ready VTR7300 Series

Terminal Equipment Controller

Installation Guide

For Commercial and Lodging HVAC

Fan Coil Applications

May 3rd, 2012 / 028-0298-R8

CONTENTS

Installation 2

Location 2
Installation 2

Operation Overview 3
Model Chart 5

Network ready 6

Terminal, Identification and Function 6
Communication wiring to VC3xxxX Relay Pack 6

Network wiring topology 7

VC3xxx LED Operation 7

Wiring of local inputs to VTR73xxA Terminal Equipment Controller 8

Configuring and Status Display Instructions 8

Status display 8

User Interface 10

Local keypad interface 10
Dual occupied setpoints adjustment 11
Single occupied setpoints adjustment 11
Unoccupied and stand-by setpoints adjustments 11
Mode button menu sequence. 11

Installer Configuration Parameter Menu 12

Configuration interface 13

1 | PIR Ready VTR7300 Series-Installation Guide

INSTALLATION

Remove the security screw on the bottom of
Terminal Equipment Controller cover.

 Open unit by pulling on the bottom

side of Terminal Equipment Controller
(fig. 1).

 Remove wiring terminals from sticker.
 Please read the FCC ID and IC label

installed in the cover upon removal of
cover for the wireless products.

Location

1. Should not be installed on an outside
wall.

2. Must be installed away from any
direct heat source.

3. Should not be installed near an air
discharge grill.

4. Should not be affected by direct sun
radiation.

5. Nothing should restrict vertical air
circulation to the Terminal Equipment
Controller.

Installation

1. Swing open the Terminal Equipment
Controller PCB to the left by pressing
the PCB locking tabs (fig. 2).

2. Pull out cables 6” out from the wall.

3. Wall surface must be flat and clean.

4. Insert cable in the central hole of the
base.

5. Align the base and mark the location
of the two mounting holes on the wall.
Install proper side of base up.

6. Install anchors in the wall.

7. Insert screws in mounting holes on
each side of the base (fig. 2).

8. Gently swing back the circuit board on
the base and push on it until the tabs
lock it.

9. Strip each wire 1/4 inch from end.

10. Insert each wire according to wiring
diagram.

11. Gently push excess wiring back into
hole (fig. 3).

2 | PIR Ready VTR7300 Series-Installation Guide

 If replacing an existing Line Voltage FCU Thermostat, label the wires

before removal of the thermostat.

 Electronic controls are static sensitive devices. Discharge yourself

properly before manipulating and installing the Terminal Equipment
Controller.

 A short circuit or wrong wiring may permanently damage the Terminal

Equipment Controller or the equipment.

 All VTR7300 series controls are designed for use as operating controls

only and are not safety devices. These instruments have undergone
rigorous tests and verification prior to shipping to ensure proper and
reliable operation in the field. Whenever a control failure could lead to
personal injury and/or loss of property, it becomes the responsibility of
the user / installer / electrical system designer to incorporate safety
devices ( such as relays, flow switch, thermal protections, etc…) and/or
an alarm system to protect the entire system against such catastrophic
failures. Tampering with the devices or unintended application of the
devices will result in a void of warranty.

12. Re-Install wiring terminals in their correct locations (fig. 3).

13. Re-install the cover (top side first) and gently push extra wire length back into the
hole in the wall.

14. Install security screw.

OPERATION OVERVIEW

The VC3xxxX Series Line Voltage Switching Transformer Relay Pack(s) operate as slave
unit(s) under the control of a single master VTR73xxA Terminal Equipment Controller.

Fan operation can be configured and wired for the following:

 3 Speed configuration using 3 fan relays ( Low - Med - High )
 2 Speed configuration using 2 fan relays ( Low - High )
 3 Speed configuration with auto fan speed mode using 3 fan relays

( Low - Med - High - Auto )

 2 Speed configuration with auto fan speed mode using 2 fan relays

The VTR7300 Controller can be configured for typical 2 or 4 pipe heating / cooling FCU
(Fan Coil Unit) applications.

2 or 4 pipe only operation can be configured and wired for the following:

3 | PIR Ready VTR7300 Series-Installation Guide

( Low - High - Auto )

 Single fan speed configuration.

o Cooling only
o Heating only
o Cooling / Heating with network or local auto changeover

2 or 4 pipe only with electric reheat can be configured and wired for the following:

o Cooling only
o Heating only
o Cooling / Heating with network or local auto changeover
o On-Off electric reheat only
o Cooling with On-Off or modulating VDC pulsed electric reheat

( model dependent )

o Heating with On-Off or modulating VDC pulsed electric reheat

( model dependent )

o Cooling / Heating with network or local changeover with On-Off

or modulating VDC pulsed electric reheat ( model dependent )

 The VC3xxxX Relay Pack supplies power to the wall VTR73xxA Terminal

Equipment Controller.

 The VTR73xxA Controller controls the VC3xxxX Relay Pack(s) via a simple

communication bus.

 A maximum of 10 VC3xxxX Relay Pack can be used under a single VTR73xxA

Terminal Equipment Controller.

 3 wires minimum are required between the VTR73xxA Controller and the first

VR7300 Relay Pack.

 The 3 wire functions are known as the following:

o 1 Tx / Rx Communication
o 2 Power Hot 7.0 VDC 4 Watts maximum ( required for the

VTR73xxA Controller power )

o 3 Power common

 Commands for fan speed and valve operation are issued from the VTR73xxA

Terminal Equipment Controller to the VC3xxxX Relay Pack(s)

4 | PIR Ready VTR7300 Series-Installation Guide

MODEL CHART

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Network ready

TERMINAL

IDENTIFICATION

ALL VTR73XXA5X00(X)

TERMINAL EQUIPMENT CONTROLLER

Terminal 3

Tx – Rx Communication

Terminal 4

Power Hot 7.0 VDC

Terminal 5

Power Common

Terminal 13

BI 1 ( Configurable )

Terminal 14

Scom

Terminal 15

BI 2 ( Configurable )

 All Viconics VTR7300 series Terminal Equipment Controllers are designed for

stand-alone operation.

 They can be fully integrated into your choice of automation systems using the

available communication adapter options.

 If required, stand-alone (Network Ready) Terminal Equipment Controllers can be

field retrofitted with the following communication adapters:

o VCM7000V5000W, Terminal Equipment Controller wireless

communication adapter

o VCM7300T5000B, Terminal Equipment Controller BACnet™ MS-TP

communication adapter

TERMINAL, IDENTIFICATION AND FUNCTION

COMMUNICATION WIRING TO VC3XXXX RELAY PACK

Only ONE VC3xxxX Relay Pack with remote monitoring inputs can be used under a single
VTR73xxA Controller. All other slave units must be VC3xxxX Relay Pack(s) WITHOUT
remote inputs. A maximum of 10 VC3xxxX Relay Packs can be used for a single
VTR73xxA Terminal Equipment Controller.

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From the VTR73xxA to the first VC3xxxX Relay Pack

Condition of the Status LED

Cause

Solution

 2 short blinks

No communication between

the VTR73xxA and the
VC3xxxX relay pack. The
VC3xxxX Relay Pack will

resume its output “no

communication active” status

Check communication

wiring and or power
cycle the controllers

 2 short blinks and a

longer blink

Normal communication

between the VTR73xxA and

the VC3xxxX relay pack.

N/A

0.2

2.5

0.6

0.4

0.0

1.0

5.0 sec

Power On

Online to

VTR73xxA

 Uses existing or new field wires
 A minimum of 3 wires are required 14-22 Ga Solid or Stranded. Shield not

necessary.

From the first VC3xxxX to all other slave VC3xxxX Relay Pack(s)

 Uses existing or new field wires
 A minimum of 2 wires are required 14-22 Ga Solid or Stranded. Shield not

necessary.

 Connect only wires #1 Power Common and #2 Tx/Rx Communication

Network wiring topology

VC3XXX LED OPERATION

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LED / Time (Status operation)

Wiring of local inputs to VTR73xxA Terminal Equipment Controller

ROOM &

HUMIDITY

SYSTEM MODE

SCHEDULE

STATUS

OUTDOOR

TEMPERATURE

ALARMS

x.x °C or °F
XX % RH

Sys mode
auto

Occupied

Outdoor
x.x °C or °F

Service

If humidity display
enabled

Sys mode
cool

Stand-By

Network value only

Filter

RoomTemp
x.x °C or °F

Sys mode
heat

Unoccup

n/a

Window

If humidity display
is not enabled

Sys mode
off

Override

n/a

Low Batt

VTR73xxA

Terminal Controller

13

- BI 1

14

- Scom 15

- BI 2

Local BI 1 Input by configuration:

- None (monitoring only)

-

Remote motion detector: Motion NO or Motion NC

- Remote Night Setback: RemNSB

Local BI 2 Input by configuration:

- None (monitoring only)

- Door contact: DoorDry

- Window contact Window:

CONFIGURING AND STATUS DISPLAY INSTRUCTIONS

Status display

The VTR73xxA Terminal Equipment Controller features a two-line, eight-character display.
There is a low-level backlight that is always active and can only be seen at night.

When left unattended, the Terminal Equipment Controller has an auto scrolling display
that shows the status of the system. There is an option in the configuration menu to
lockout the scrolling display and to only display the room temperature and conditional
outdoor temperature to the user. With this option enabled, no local status of mode,
occupancy and relative humidity is shown.

Each item scrolls individually with the back lighting in low level mode. Pressing any key
will cause the back light to come on to high level. When left unattended for 10 seconds
after changes are made, the display will resume automatic status display scrolling.

To activate the back light to high level, press any key on the front panel. The back light
display will return to low level when the Terminal Equipment Controller is left unattended
for 45 seconds.

Sequence of auto-scroll status display:

8 | PIR Ready VTR7300 Series-Installation Guide