Viconics VC3000 User Manual

VC 3000 Series Line Voltage Switching Relay Pack Controllers

Installation Guide

For Commercial and Lodging HVAC

Fan Coil Applications

May 3rd, 2012 / 028-0296-R6

CONTENTS

Installation 2 Communication Wiring to VTR73xxA 4 Terminal Equipment Controller 4 VC3xxx LED Operation 5 Wiring of Remote Inputs to VC3504E and VC3404E 6 Model Chart 7 Terminals, Wire Identification & Ratings 8 Typical Wiring Example 9 Specifications 9 Dimensions 10 Important Notice Error! Bookmark not defined.

1 VC7300 Series-Installation Guide

INSTALLATION

IMPORTANT: ALL WIRING MUST CONFORM TO LOCAL AND NATIONAL ELECTRICAL CODE REGULATIONS.

Please read the following instructions carefully before proceeding with the installation. Failure to follow the instructions could damage the product or cause a hazardous condition. Installation must be performed by a qualified service technician or electrician. Disconnect power supply before installing in order to prevent electrical shock.

There are three basic methods for installing the VC3000 transformer relay pack controller.

A) Inside an electrical cabinet of a fan coil unit

• Use the plastic mounting tabs to secure the unit to the inside of the electrical enclosure.

• Secure to the inside with screws.

• Cut one or both plastic mounting tabs if space is needed inside the enclosure.

• Install a low voltage or high voltage metal separator if required.

• Do not exceed the maximum rated temperature of the unit. (50 °C/122 °F)

2 VC7300 Series-Installation Guide

B) Outside of a junction box or electrical cabinet

 If replacing an old line voltage fan coil controller, label the wires

before removal of the old controller.

 Electronic controls are static sensitive devices. Discharge yourself

of any electrostatic build-up before manipulating or installing the terminal equipment controller.

 A short circuit or wrong wiring may permanently damage the

terminal equipment controller or the equipment.

 VC3000 series transformer relay packs are to be used only as

operating controls. If installed incorrectly the intended application may fail or lead to personal injury or loss of property. It is the responsibility of the end user to ensure that the device has been properly installed by a certified professional and that proper safety precautions have been taken to protect against failures.

• Use the supplied lock nut to secure the transformer relay pack to the electrical junction box or to the electrical cabinet of the fan coil unit.

C) Enclosed low voltage junction box type installation (if required by local codes)

• Install the transformer relay pack inside a 4”x 4” junction box.

• Cut one or both plastic mounting tabs if space is needed inside the enclosure.

• Use the supplied lock nut to secure the transformer relay pack (inside its junction box) to

the main electrical junction box or to the electrical cabinet of the fan coil unit.

3 VC7300 Series-Installation Guide

COMMUNICATION WIRING TO VTR73XXA TERMINAL EQUIPMENT CONTROLLER

Only one VC3xxxX relay pack with remote monitoring inputs can be used under a single VTR73xxA controller. All other slave units must be either VC3xxxX relay pack(s) WITHOUT remote inputs. A maximum of 10 VC3xxxX relay packs can be used for a single VTR73xxA terminal equipment controller.

From the VTR73xxA to the first VC3xxxX

o Existing or new field wires o 3 minimum required 14-22 Ga solid or stranded. Shield not necessary.7

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

o Existing or new field wires o 2 minimum required 14-22 Ga solid or stranded. Shield not necessary. o Connect only common and 2 Tx / Rx communication

4 VC7300 Series-Installation Guide

Possible network wiring topology

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

The VTR7300 to VC3000 transformer relay pack can use any network wiring topology as required or based on topology of existing wires.

VC3XXX LED OPERATION

Condition of the status LED

5 VC7300 Series-Installation Guide

On/off LED vs. time (normal operation)

WIRING OF REMOTE INPUTS TO VC3504E AND VC3404E

6 VC7300 Series-Installation Guide

MODEL CHART

Part #

VC3500E5000

VC3504E5000

VC3514E5000

Occ. Output

VC3400E5000

VC3404E5000

VC3300E5000

Slave Fan

Unit

Applications

2 pipes

2 pipes with

reheat

4 pipes

2 pipes

2 pipes with

reheat

4 pipes

2 pipes

2 pipes with

reheat

4 pipes

2 pipes

2 pipes with

modulating

pulsed reheat

2 pipes

2 pipes with

modulating

pulsed reheat

Slave fan

control only

Fan control

Up to 3 speed

Monitoring

inputs

None

4 FCU remote

inputs

4 FCU remote

inputs

None

4 FCU remote

inputs

None

Control

types

On-Off line

switched valve

output control

- 1 heat / cool output

- 1 cool output

- 3 fan outputs

On-Off line

switched valve

output control

- 1 heat / cool output

- 1 cool output

- 3 fan outputs

On-Off line

switched valve

output control

- 1 heat / cool output

- 1 cool output

- 3 fan outputs

- Occupancy

output

On-Off line

switched valve

output control

- 1 heat / cool output

- 1 Modulating pulsed Vdc

output for SSR

electric reheat

control

- 3 fan outputs

On-Off line

switched valve

output control

- 1 heat / cool output

- 1 Modulating pulsed Vdc

output for SSR

electric reheat

control

- 3 fan outputs

Slave fan

control only

3 fan outputs

Ordering Information Notes:

 Please refer to the “Operation overview” section for related information on VTR73xxA and

VC3xxxX arrangements and possible combinations.

 More than one VC3xxxX Relay Pack can be used for a single VTR73xxA Terminal

Equipment Controller.

 Only one VC3x4X Relay Pack with monitoring inputs can be used for a single VTR73xxA

Terminal Equipment Controller

Ordering examples:

 A VC3500E5000 is for a 90 to 277 Vac powered FCU mounted Relay Pack with the

following outputs:

 Three 90 to 277 Vac switching fan relay outputs  Two 90 to 277 Vac switching valve relay outputs  A VC3504E5000 is for a 90 to 277 Vac powered FCU mounted Relay Pack with the

following inputs and outputs:

 One configurable universal input  One configurable binary input  One dedicated discharge air temperature monitoring input  One dedicated return air temperature control input  Three 90 to 277 Vac switching fan relay outputs  Two 90 to 277 Vac switching valve relay outputs  A VC3300E5000 is for a 90 to 277 Vac powered FCU mounted Relay Pack with the

following outputs:

 Three 90 to 277 Vac switching fan relay outputs

7 VC7300 Series-Installation Guide

TERMINALS, WIRE IDENTIFICATION & RATINGS

Part #

VC3500E5000

VC3504E5000

VC3514E5000

Occupancy

Output

VC3400E5000

VC3404E5000

VC3300E5000

Slave Fan Unit

Low

Voltage

Terminals

No local inputs

Low voltage

inputs

Low voltage

inputs

No local inputs

Low voltage

inputs

No local inputs

1

1- Tx/Rx

2

2- 7 VDC

3

3- Com

4

4- RUI 1

5

5- Scom

6

6- RBI 2

7

7- SS

7- SS 8 8- RS

8- RS

9

9-Occ

9- Heat -

10

10- Heat +

LINE VOLTAGE CONNECTIONS

Power

Supply

Power supply: - 90 to 277 VAC universal all models

- Black Hot L1 Power VAC(Switches: Brown, Blue, Red, and Yellow)

- White neutral power VAC

Fan line

voltage contact

Wire

connection

½ HP

Maximum

3 Fan Speed Control Wires Brown, Blue, Red

Valve line

voltage contact

output

Yellow

wire

connection

10A

maximum

4 Pipes Cool output Or 2 Pipes Heat / Cool output

2 Pipes Heat / Cool output

N/A

Valve line

voltage

isolated

contact

output

2 x Orange

wires

connection

10A

maximum

4 Pipes Heat output Or 2 Pipes reheat output

N/A

8 VC7300 Series-Installation Guide

TYPICAL WIRING EXAMPLE

Output ratings:

-Heat Valve: (Orange wire):

10 Amps @ 277 VAC maximum

-Cool Valve: (Yellow wire):

5 Amps @ 277 VAC maximum

-Fan: (red, blue, brown wire(s)):

1/2 HP @ 277 VAC maximum

Operating conditions:

0C to 50C (32F ro 122F)

0% to 95% RH non-condensing

Approximate shipping weight:

0.75lb (0.34kg)

Agency approvals all models:

cTUVus: UL 873 (US) and CSA C22.2 No. 24

(Canada)

CE: LVD 2006/95/EC (Europe Union)

CE: EMC 2004/108/EC (Europe Union)

CE for RF: RTTE 1999/5/EC

FCC: Compliant to: Part 15, Subpart B

FCC for RF: Compliant to: Part 15, Subpart C

SPECIFICATIONS

Power Supply: 90 to 277 VAC universal, 50-60 Hz

Fan line voltage contact electrical ratings: Brown, Blue, Red wires ½ HP maximum Main heat and cool line voltage contact electrical ratings: Yellow wire 10A maximum

Isolated heat line voltage contact electrical ratings: Orange wires 10A maximum

9 VC7300 Series-Installation Guide

DIMENSIONS

VC3000 series transformer relay packs are to be used only as operating controls. If installed incorrectly the intended application may fail or lead to personal injury or loss of property. It is the responsibility of the end user to ensure that the device has been properly installed and that proper safety precautions have been taken to protect against possible failures. Tampering with the devices or incorrect application of the device will void warranty.

Viconics Technologies Inc.

Tel.: Fax: Toll free:

WWW.VICONICS.COM

IMPORTANT NOTICE

Please check with your local government for instruction on disposal of this product

10 VC7300 Series-Installation Guide

Viconics VC3000 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual