WattMaster Auto Zone Control Systems Zoning Design Guide

Zoning Guide Guide Guide Guide Guide NW River Park Drive Parkville MO 64152 816 505 1100 FX 816 505 1101 E mail mail wattmaster com our website at www wattmaster com WM AZA ZDG 01B Copyright 2001 WattMaster Controls Inc System Manager are registered trademarks of WattMaster Controls Inc Controls assumes no responsibility for errors or omissions document is subject to change without notice All rights reserved Of Contents Auto Zone Works 5 Should I Use Auto Zone 6 Is Unique About Auto Zone 6 8 Systems Versus True VAV Systems 9 Of Designing A Zoning System 10 Considerations 11 12 Design Procedures 13 21 Installation 22 26 Notes 27 Of Figures Tables 1 1 Auto Zone Plus System Overview 5 1 2 Zones Affected By Outdoor Load 13 1 3 Zone Layout With External Zones Only 14 1 4 Zones With North And South Exposures 14 1 5 Zoning And Constant Volume Units 14 1 6 Round Bypass Damper 16 1 7 Rectangular Bypass Damper Kit 16 1 8 Preferred Sensor Location 17 1 9 Acceptable Sensor Location 17 1 10 Least Desirable Sensor Location 17 1 11 Pressure Dependent Damper 18 1 12 Pressure Independent Damper 18 1 13 WattMaster Communications Wire 23 1 14 Auto Zone Basic System Communications Loop Wiring 24 1 15 Auto Zone Plus System Communications Loop Wiring 24 1 16 Transformer Wire Sizing Considerations 26 1 1 Round Damper Selection Data 19 1 2 Rectangular Damper Selection Data 20 Design Guide Auto Zone Works Auto Zone control system converts single zone volume rooftop packaged or split system units into variable air volume variable tempera multiple zone systems The microprocessor based Manager calculates the heating and cooling re for each zone based on real time informa received from each Zone Controller Damper The Manager then directs the HVAC unit to provide appropriate amount of heating cooling and venti to satisfy each zone requirements A bypass controlled by a static air pressure sensor modu a bypass damper to maintain constant duct pres Auto Zone system uses a unique 3 tier approach to the system the zone must initiate a vote to the HVAC unit occurs when a zone becomes more than 1 degree setpoint At this time a vote is placed for heating or Next the controller evaluates the total cooling or heating demand within the entire building see which requirement is more critical Finally the looks for any priority conditions which would precedence over other zones All three of these working together provide accurate and stable of comfort control features are taken into account to a very effective control of the system Some of include priority override supply air temperature outside air temperature lockouts and min max over damper position Voting Zones Demand 3 tier system works in an integrated fashion to proper control of the equipment and effective of comfort in the zone savings can be realized using the Auto Zone system instead of having to install multiple roof units to accommodate multiple zone requirements Auto Zone Zoning system is versatile and can be with any packaged roof top unit or split system It a variety of terminal unit functions including duct pressure dependent pressure independent fan and parallel fan terminals CABLE AIR AIR AIR CONDUCTOR GA CONDUCTOR GA AIR AIR DAMPER CONDUCTOR GA AIR SENSOR CONDUCTOR GA PRESSURE SENSOR PICKUP TUBE TO OTHER CONTROLLERS CV UNITS AIR DUCT TO OTHER MANAGERS COMM LOOP LINE VAC MANAGER COMM LOOP CV 02 38PM MON ALARMS CONTROLS INC VAC MANAGER 1 SENSOR SENSOR AND SETPOINT ADJUST TO 16 ZONES 2 VAC Link LINK II O N T R O L S O N T R O L S LINK MODEM LINK II OPTIONAL 1 1 Auto Zone Plus System Overview Systems Design Guide Should I Use Auto Zone is a proven system with a long history of installations Our systems have been refined the years with the help of feedback from people in field who work and live with these systems on a basis Our success is greatly due to the fact that have implemented changes and enhancements based real world experience not from tinkering with equip in an isolated lab environment This real world provides engineers contractors and end us with a zone control system that is efficient reliable most importantly keeps the customers comfortable Is Unique About Auto Zone is unique because it has many features not on other systems These features include Design will work on any manufacturers HVAC that will accept a standard thermostat con This protects the end user from being locked in one source for service and support In addition Auto Systems include very comprehensive documenta which was written in a format specifically for a technician Because the manuals are so friendly it prevents the end user from being to one contractor for service Any new con needs only a copy of the system manual to have much technical information as any previous contrac Software design software and documentation has already done for you This eliminates the costly expense associated with conventional DDC systems the Auto Zone system more competitive and to install and operate System for Zoned or Single Zone only does Auto Zone provide a networked zone system for one or multiple zoned HVAC units can also connect individual single zone units to the eliminating the need to use programmable ther to Configure Auto Zone components are grouped into pack configuring a system has been simplified This t