Who it's For
Targeted to field personnel, but it is open to anyone interested in understanding the basics of zoning.
This
program is not designed to train an unskilled worker to do zone system
installations. Rather, it is designed to augment technicians’
understanding of zoning systems and zoning design concepts so that they
can avoid commonly made errors and recognize when a zoning application
needs more design input. Designers may also gain insight from a
technician’s perspective on the information required to complete an
installation by reading through this Guide and Workbook
What is Covered
Many existing zoning systems predate the guidance provided in ANSI/ACCA 11 Manual Zr-2012 Residential Zoning.
That 2012 standard has been updated, with the latest version approved
by ANSI in 2018. Home zoning system designs should be based on the
guidance provided in ACCA Manual Zr.
Due to the demand for more
control, comfort and flexibility, the future of heating, ventilation,
and air conditioning (HVAC) is in refining zoning designs and
installation practices. When correctly designed, installed, and
commissioned, multi-zoned homes offer homeowners better control over
their environments. As advanced control systems and system diversity are
added to design practices, those who wish to set controls to energy
saving modes will be able to do so with a minimal impact on comfort.
Course Breakdown (3.3 hours total)
1. Introduction - 15 minutes
System Design
Overview, Temperature variation factors, Single & Multi Zone
Performance, Comfortable Room Temperatures, Energy Usage, Energy
Calculations, Cost of Zoning and more.
2. Zoning Types & Design Decisions - 24 minutes
Zoning
Methods, Equipment Types, Heat Transfer, Remote Room Locations, Solar
Gains, Internal Loads, Buoyancy, Peak Fenstration Loads,
Cooling/Heating, Air Balance, Controls and more.
3. Single Zone Balancing & Thermostat Location - 24 minutes
Zoning
Methods, Different Equipment types, Zoning Decisions, Owner Input,
Exposure Load Chart, Air Balancing Percentage Calculations, Zone System
Control Integration and more.
4. Zoning Load Calculations - 20 minutes
Zoning Load Calculations, Block Load, Airflow Design, Table Calculations, AED, Glass Load Calculations and more.
5. Blower Motors - 17 minutes
Motor
Types, Capacitor, ECM Motor parts External Static Pressure, Fan Speed,
Fan Performance Chart, Pressure Matching, 1/3 HP ECM Fan Curve, OEM
Safety Sensors adn more.
6. Air Balancing Basics - 14 minutes
Manual
D Duct Sizes, Airflow Measurement Methods, Zoning Balance Total CFM,
Bypass Damper Adjustment, ESP, Minimum Step Point, Sound Check All Zones
and more.
7. Zone Damper Systems - 15 minutes
Mandatory Design Requirements, Space Humidity Control, Zone Temperature Swing, External Static Pressure and more.
8. Balancing & Managing Excess Air - 22 minutes
Excess
Air Management, Bypass Relief, Overblow Relief, Selective Throttling,
Capacity Control, Consolidate Zones, Balancing Combinations and more.
9. Zoning System Options - 10 minutes
Adding Zones to Exisiting Systems, Home Conditions, Multi-Split Zone Piping, Chillers, Hydronic Systems Basics and more.
10. ZR System Diagnostics - 17 minutes
Thermostatic
Control Issues, Thermostat Operations, Damper Control Issues,
Electrical Diagnostics, Moisture Failures, Retrofit Damper Location,
Bypass Damper Issues and more.
11. Balancing 3 Zone Long House - 20 minutes
Proportional Balancing CFM, Zoning Balancing, Balancing Points, Fan Laws, Motor Amperage and more.