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Viconics VT76 7 Series Installation Manual

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C
ONTENTS
Installation
1 | 028-0229-05
VT76x7 Series
Installation Guide
F o r C o m m e r c i a l H V A C A p p l i c a t i o n s
N o ve m b e r 2 0 1 5
A p r i l 2 6 , 2 0 1 1 / 0 2 8 - 0 1 9 0 - R 6
M a y 5 , 2 0 1 1 / 0 2 8 - 0 2 2 8 - R 3
November 2015
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Summary of Contents for Viconics VT76 7 Series

  • Page 1: Table Of Contents

    VT76x7 Series Installation Guide F o r C o m m e r c i a l H V A C A p p l i c a t i o n s N o ve m b e r 2 0 1 5 ONTENTS A p r i l 2 6 , 2 0 1 1 / 0 2 8 - 0 1 9 0 - R 6 Installation...

  • Page 2: Installation

    NSTALLATION Remove security screw on bottom of cover.  Open unit by pulling on bottom side of Room Controller (fig. 1).  Remove wiring terminals from sticker.  Read FCC ID and IC label installed in cover. Location Should not be installed on outside wall.

  • Page 3: Terminal, Identification And Function

     If replacing an existing Room Controller, label the wires before removal of the Room Controller.  Electronic controls are static sensitive devices. Discharge yourself properly before manipulating and installing the Room Controller.  A short circuit or wrong wiring may permanently damage the Room Controller or the equipment.

  • Page 4: Screw Terminal Arrangement

    Screw terminal arrangement 3 pole left top connector 5 pole left top connector RH W1 Y2 Y1 G RC C 8 pole bottom connector HM AU DH DI HS OS HL Scom Wiring notes: Note 1: If the same power source is used for the heating stages, install jumper across RC & RH.

  • Page 5: Typical Applications

    YPICAL APPLICATIONS 5 | 028-0229-05 November 2015...

  • Page 6: Remote Humidity Sensor Accessories

    Remote humidity sensor accessories Model no. Description VH2020W1000 Wall mounted humidity sensor VH2020D10000 Duct mounted humidity sensor VH2020W1000, remote wall mounted room humidity sensor. This sensor can be used for:  Remote return or room air humidity sensing with the sensor mounted on the wall. VH2020W1000 VH2020D1000, remote duct mounted humidity sensor c/w junction box.
  • Page 7 User menu flow chart: NOTE: Prompts may not all be present depending on model selected If status is: Ov e r r i d e MENU Unoccupied s c h d Y / N If status is: Temporary Occupied Time, Re s u me Occupied hold or s c h d Y / N...

  • Page 8: Configuring And Status Display Instructions

    ONFIGURING AND TATUS ISPLAY NSTRUCTIONS Status display The Room Controller features a two-line, eight-character display. There is a low level backlight level that is always active and can only be seen at night. When left unattended, the Room Controller has an auto scrolling display that shows the actual status of the system.
  • Page 9 Alarms  If alarms are detected, they will automatically be displayed at the end of the status display scroll.  During an alarm message display, the back lit screen will light up at the same time as the message and shut off during the rest of the status display. ...

  • Page 10: User Interface

    NTERFACE User configuring instructions menu The VT76x7 series of Room Controller feature an intuitive, menu-driven, back-lit LCD display that walks users through the configuring steps, making the configuring process extremely simple. This menu is typically accessed by the user to set the parameters such as temperature and time events, system mode, fan mode, etc.

  • Page 11: Local Keypad Interface

    Local keypad interface Each of the sections in the menu is accessed and configured using 5 keys on the Room Controller cover. The priority for the alarms is as follows: The YES key is used to confirm a selection, to move onto the next menu item and to manually scroll through the displayed information.

  • Page 12: Troubleshooting Guide

    ROUBLESHOOTING GUIDE Symptom Possible Corrective Action Cause 1. Check power supply voltage Absent or between C & RC to be from 19-30 incorrect supply voltage 2. Check for tripped fuse or circuit No display on the Room breaker Controller Verify that the transformer used is Overloaded powerful enough (enough VA’s) to power...
  • Page 13 Wrong mode selected Select heating mode Select Occupied Hold in Schedule hold Room Controller in or Override to force the Room Controller Unoccupied mode Occupied heating setpoint Wait, the anti-cycling period will end and Anti-cycle delay active the equipment will start Heating setpoint is Raise the Heating setpoint satisfied...
  • Page 14 Viconics Technologies Inc. Tel.: Fax: Toll free: www.viconics.com 14 | 028-0229-05 November 2015...

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