Rev 00
Date: 10-8-13
Demand Control Ventilation System
MODEL “DCV-AV” Series
Operators Manual
GAYLORD INDUSTRIES
10900 SW Avery Street – Tualatin, Oregon 97062 USA
Email: info@gaylordventilation.com Toll Free 800-547-9696 – Fax 5023-692-6048 www.gaylordventilation.com
All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form by an electronic, mechanical, photocopying, recording means or otherwise without prior written permission of Gaylord Industries.
©Copyright 2013, Gaylord Industries
The manufacturer reserves the right to modify the materials and specifications resulting from a continuing program of product improvement or the availability of new materials
Additional Copies $25.00 Each
______________________________________ |
Page iii |
Table of Contents
Chapter 1 – Introduction
About the Manual ……………………………………………………………………………………………………………….. 1-1 Safety ………………………………………………………………………………………………………………………………….. 1-1 System Overview……….…………………………..…………………………………………………………………………….. 1-2 How the AirVantage System Works ………………………………..……………………………………………………. 1-2
Chapter 2 – System Components
Overview …………………………………………………………………………………………………………………………….. 2-1 AirVantage Command Center………………………………………………………………………………………………. 2-2 Variable Frequency Drives ………………………………………………………………………………………………….. 2-3 Hood Control Enclosure ……………………………………………………………………………………………………… 2-3 Modulating Dampers ………………………………………………………………………………………………………….. 2-4 100% Fan Button ………………………………………………………………………………………………………………… 2-4 Resistance Temperature Detectors (RTDs)…………………………………………………………………………… 2-5
Chapter 3 – Operation
Overview ……………………………………………………………………………………………………………………………. 3-1 Starting the Exhaust Fan …..………………………………………………………………………….…………………….. 3-2 Turning on Ventilator Lights ……………………………………………………………………….……………………….. 3-5 100% Exhaust Override Button ………………………………...…………………………………………………………. 3-6 Turning Off the Exhaust Fan ……………………………………..…………………………….………………………….. 3-7 Setting Functions ………………………………………………..………………………………………………………………. 3-8
1.Setting Time, Date and Day …………………….……………………………………………………………….. 3-10
2.Scheduling Automatic Start and Start of Exhaust Fan ………………………………………………. 3-13 Yellow and Red Alerts …………………………………………………………………………………………………………. 3-16
1.Yellow Alerts …………………………………………………………………………………………………………… 3-17
2.Red Alerts ………………………………………………………………………………………………………………. 3-18 Fire Alert …………………………………………………………………………………………………………………………….. 3-19
Chapter 4 - Service
Gaylord Service Information ……………………………………………………………………………………………….. 4-1 Hood Cleaning Precautions …………………………………………………………………………………………………. 4-3 Exhaust Fan Service Precautions …………………………………………………………………………………………. 4-3
Chapter 5 – Energy Data
Retrieving Data From the Main Screen ………………………………..……………………………………………… 5-1 Retrieving Data From the Data Screen …………………………………………………………………………………. 5-2
Limited Warranty ……………………………………………………………………………………………. Inside Back Cover
Page iv________________________________________________________________________________
This Page Intentionally Left Blank
Chapter 1: Introduction, Page 1-1
About this Manual
The purpose of this manual is to provide the kitchen operator complete information for operating the Gaylord AirVantage Demand Control Ventilation System Model DCV-AV Series in conjunction with Gaylord Ventilators Model ELX and ELXC Series.
The manual is divided into chapters for easy reference to a particular subject. The pages in the chapters are numbered with the Chapter number, then a dash, and then the Page number. So for example pages in Chapter 2 are numbered 2-1, 2-2, 2-3 etc. Figures and Tables are numbered in a similar manner. For example Figure 3-3-2 is on Page 3-3 and is the second figure. Please keep your manual in a convenient location for so it can be accessed easily.
If you have any questions regarding the Gaylord AirVantage System, please contact Gaylord Industries.
Web: www.gaylordventilation.com
E-Mail: info@gaylordventilation.com
Main Phone: 503-691-2010
Toll Free: 800-547-9696
This manual and other Gaylord product manuals may be downloaded from the Gaylord website: www.gaylordventilation.com or be obtained by calling Gaylord Industries.
Safety
Please read this manual in its entirety before operating the AirVantage system. Some portions of the control circuitry operate on 120 volts. One of the following Warning statement precedes any instructions or guidance where contact with 120 volts could occur:
Warning: 120 volt circuit. Opening the access door and working on this equipment may result in electrical shock.
Warning: 120 volt circuit. This equipment can only be serviced by a Gaylord Certified Service Agency. Accessing and working on this equipment may result in electrical shock.
Chapter 1: Introduction, Page 1-2____________________________________________________________
AirVantage System Overview
The Exhaust Fans of traditional kitchen exhaust systems are sized to exhaust the effluent produced by the cooking appliances running at full load with the fan running at a constant speed throughout the cooking day. Air removed from the kitchen space must be replaced by the use of a dedicated Makeup Air system, and this air must be heated and cooled as required to maintain a comfortable kitchen. The energy to operate the Exhaust Fan, heat and cool the Makeup Air for 10 to 18 hours a day at 100% capacity, wastes a tremendous amount of energy. Just a 20% reduction in airflow volume can yield approximately 45-50% in annual fan energy savings and a 20% reduction on heating and cooling costs.
The AirVantage Demand Control Ventilation System has been designed to reduce overall ventilation rates by tying the cooking appliance’s sensible heat output to the required airflow rates. It monitors the sensible heat produced by the cooking appliances, using Resistance Temperature Detectors (RTDs) mounted in the Ventilator, to automatically increase or decrease the Exhaust Fan and Makeup Air units fan speeds, saving a substantial amount of money each year on energy costs. If for example all the cooking appliances are not in use, or they are turned down, the RTDs sense the lower temperature and the system automatically decreases the Exhaust Fan speed, and reduces the amount of Makeup Air proportionally to a level required to maintain optimum capture performance. As the appliance temperatures go up and cooking increases, the Exhaust Fan and Makeup Air fan increase to a point as required to maintain optimum capture to remove the smoke, grease, and heat. The AirVantage System can generate and overall savings of 10%-50% and reduce fan energies from 25%-70%.
How the AirVantage System Works – The Basics
The AirVantage System is made up of six major components as illustrated in Figure 1-3-1 on the following page. They are 1) Command Center, 2) Variable Frequency Drives (VFD’s), 3) Hood Control Enclosure (HCE), 4) Modulating Dampers, 5) 100% Fan Button, and 6) Resistance Temperature Detectors (RTDs). The Command Center is mounted in the kitchen area. It houses the Touch Screen Controller that controls the Start/Stop of the exhaust fan, Ventilator lights and all the other functions of the system. Two RTD’s are mounted in each Ventilator section. There is one VFD for each Exhaust Fan and one for each Makeup Air fan. The VFD’s can be mounted in a cabinet on the end of the Ventilator, as shown on Figure2-1-1, or mounted remotely. The RTDs, DSC, VFDs and 100% Fan Button are connected to the Command Center with low-voltage cables. The VFDs are programmed to operate between a minimum and maximum speed based on a Low Cooking Load and a High Cooking Load. The Control Board within the DCV Control Cabinet is programmed to correlate the temperature at each individual RTD to the heat generated by the cooking appliance(s) with a High Cooking Load.
During a cooking day, as the sensible heat, created by the cooking appliances, increases or decreases, the RTDs detect the change which is interpreted at the Command Center. A signal is then sent to the Balancing Dampers and the VFDs to modulate the exhaust volume for that particular Ventilator section. To reduce the risk smoke spillage, the system will respond to temperature changes of five degrees or more, up or down, in any 40 second period by going to 100% for a five minute period.
____________________________________________________________Chapter 1: Introduction, Page 1-3
AirVantage System Overview – Cont.
Typically the exhaust volume will modulate up and down throughout the day based on the use of the cooking appliances. If ever needed, the 100% Fan Button, located on each Ventilator section, can be pushed to ramp the exhaust volume up to 100% for that section. The 100% exhaust volume will run for 5 minutes and then revert back to the previous volume.
The AirVantage System also has a learning function that auto-calibrates the exhaust volume for each Ventilator
Chapter 1: Introduction, Page 1-4____________________________________________________________
This Page Intentionally Left Blank
_____________________________________________________Chapter 2: System Components, Page 2-1
System Components
The Gaylord AirVantage Demand Control Ventilation System is made up of several primary components. Figure 2-1-1 illustrates a typical installation with the primary components identified.
Exhaust Fan
4 |
6 |
5 |
3 |
2 |
1 |
Figure 2-1-1
Typical Installation
1.DCV-AV Command Center
2.Variable Frequency Drives shown mounted in an optional Hood End Cabinet
3.Hood Control Enclosure (HCE)
4.Modulating Dampers
5.100% Fan Button
6.Resistance Temperature Detectors (RTD)
Chapter 2: System Components, Page 2-2_____________________________________________________
System Components – Cont.
AirVantage Command Center
The Command Center, Figure 2-2-1, is a stainless steel cabinet that houses the Touch Screen Controller, and electrical components for controlling the entire system. The Command Center is the heart of the system and controls the Start and Stop functions of the Exhaust Fan and interfaces with the Variable Frequency Drives (VFDs) controlling the exhaust and Makeup Air fans, the Hood Control Enclosure, Modulating Dampers, 100% Fan Button and the Temperature Detectors (RTDs). It may also be connected with a Building Management System (BMS). The DCV Command Center is typically located in the kitchen area in a convenient location, within 60 feet of the Ventilator.
Warning: 120 volt circuit. Opening the access door and working on this equipment may result in electrical shock.
Touch Screen
Controller
Figure 2-2-1
Command Center
______________________________________________________Chapter 2: System Components, Page 2-3
System Components – Cont.
Variable Frequency Drives (VFD)
One Variable Frequency Drive is required for each exhaust and Makeup Air fan. They are typically located in proximity of the fans they serve but as an option can be mounted in a Hood End Cabinet. The VFD controls the exhaust and makeup fan speeds and is interfaced with the Command Center.
Warning: 120 volt circuit. This equipment can only be serviced by a Gaylord Certified Service Agency. Accessing and working on this equipment may result in electrical shock.
Figure 2-3-1
Typical Variable Frequency Drive (VFD)
Hood Control Enclosure (HCE)
A Hood Control Enclosure box is mounted on the top of each Ventilator section. It is accessed through an
access panel in the top of the Ventilator canopy. The Hood |
Control |
|
Enclosure interfaces the Command Center with the |
Modulating |
|
Dampers and Ventilator light fixtures. |
|
|
Warning: 120 volt circuit. This equipment can only be |
serviced |
by a |
Gaylord Certified Service Agency. Accessing and working |
on |
this |
equipment may result in electrical shock. |
|
|
Figure 2-3-2
Hood Control Enclosure
Chapter 2: System Components, Page 2-4______________________________________________________
System Components – Cont.
Modulating Dampers
A set of Modulating Dampers are mounted in the exhaust duct collar of each Ventilator section. The dampers move, by and electric motor, to increase or decrease the exhaust rate based on a signal from the Temperature Detectors.
Figure 2-4-1
Modulating Dampers
100% Fan Button
One 100% Fan Button is mounted on the face of each Ventilator section. Pushing this button will increase the exhaust rate of that Ventilator section for 5 minutes and then revert back to the original exhaust rate.
Figure 2-4-2
100% Fan Button
Temperature Detectors (RTD)
Two RTD’s are mounted in each Ventilator section as illustrated in Figure 2-1-1. The RTD’s read sensible heat from the cooking appliances reacting to an increase or decrease of the thermal plume generated from the appliance.
Figure 2-4-3
Temperature Detectors
_____________________________________________________________Chapter 3: Operation, Page_3-1
Operating the System
All functions of the system are controlled by the Command Center (Refer to Figure 3-1-1). The Touch Screen Controller is used by the operator to initiate the following functions:
•Start and Stop the Exhaust Fan.
•Turn on and off the Ventilator lights.
•Program the date, time of day and the day.
•Program a scheduled Start and Stop of the Exhaust Fan.
•View Exhaust Fan speed in percentage.
•View year to date energy savings.
•View Kilowatt (KW) reduction.
•View other energy data for specific Ventilator sections.
The Touch Screen Controller has many other functions for set up and service of the system that are only accessible by a Gaylord Certified Service Agency.
For instructions on operating the system proceed to the next page.
Touch Screen
Controller
Figure 3-1-1
Command Center
Loading...