Keep It Simple

INTRODUCTION TO HVAC DESIGN CONCEPTS

K.I.S.S.: KEEP IT SIMPLE AND SINCERE

All customized HVAC analysis and design services will adhere to the installation and operating objective of SIMPLE SYSTEMS PERFORM RELIABLY and are ECONOMICAL.

GENERAL LOCAL and STATE

ENERGY CONSERVATION (EC) REQUIREMENTS

The International Building Code (IBC) and Florida Building Code (FBC) require that all new construction be analyzed per either ACCA Manual J or N to determine the HVAC requirements as provided in a set of architectural plans and the material specifications. Specifically, FBC Residential Section, Chapter 11 Energy Efficiency states FBC section Energy Conservation (EC) shall be applied to all new buildings.

Heating and cooling equipment shall be sized in accordance with ACCA Manual S based on the equipment loads calculated in accordance with ACCA Manual J or other approved heating and cooling calculation methodologies, based on building loads for the directional orientation of the building. The manufacturer and model number of the outdoor and indoor units (if split system) shall be submitted along with the sensible and total cooling capacities at the design conditions described in Section R302.1. This Code does not allow designer safety factors, provisions for future expansion or other factors that affect equipment sizing. System sizing calculations shall not include loads created by local intermittent mechanical ventilation such as standard kitchen and bathroom exhaust systems. New or replacement heating and cooling equipment shall have an efficiency rating equal to or greater than the minimum required by federal law for the geographic location where the equipment is installed.

The mechanical requirements for each state are generally quite similar because they are based on the International Mechanical Code ( IMC). The International Residential Code (IRC) is available for review using the following link.

Reference: https://up.codes/code/international-residential-code-irc-2015

SECTION EC, R 403.7 Heating and cooling equipment (Mandatory).
R 403.7.1 Equipment Sizing
FBC

CHAPTER 14 HEATING AND COOLING EQUIPMENT APPLIANCES

Heating and cooling equipment and appliances shall be sized in accordance with ACCA Manual S or other approved sizing methodologies based on building loads calculated in accordance with ACCA Manual J or other approved heating and cooling calculation methodologies.
FBC Mechanical

FSEC – Florida Solar Energy Center / Energy Gauge . Form R405 -2017 ENERGY EFFICIENCY CALCULATIONS Also, Res Check software is a general calculation procedure used in many States.

The efficiency measure used in making any enhanced performance equipment selection will be the most beneficial for comfort and IAQ, as well as reasonable HVAC System operating costs in your locale.

General design and engineering service fees along with schedule commitment are provided on the following page.

SIMPLIFIED HVAC and MECHANICAL SYSTEMS DESIGN, LLC