Services

ACCA Manual J load calculations are used by homeowners and HVAC contractors to select HVAC equipment capacities (ACCA Manual S) based on the Manual J room by room heating and cooling load results. Manual J8 determines your specific home’s heating and cooling needs based on where your home is located (weather location), which direction your home faces (Orientation), the insulations R-values in your floor, ceiling, and walls, and how humid your climate is. 

The Manual N for commercial load calculation is designed to instruct contractors and others on how to meet the complicated new heating and air conditioning requirements for commercial buildings. This manual treats in detail all that you will need to know, including the latest developments in the commercial construction industry such as the use of new materials, assembly, operational requirements, and more. Being up to date on your commercial load calculation will ensure that you meet any possible building codes that may be in place, are keeping the occupants safe and comfortable, and are keeping the utility bills as low as possible.

Manual S shows you how to select and size heating and cooling equipment to meet loads for a particular home, which are based on local climate and home construction specifics. Contractors in Miami, Phoenix, and Seattle – all extremely different climates – would never use the same equipment and expect the same results. Manual S provides sizing requirements for 11 types of cooling and heating equipment, as well as in-depth explanations and examples of how to use manufacturer’s performance data.

Manual D is the industry standard for sizing home HVAC return and supply duct & registers.  Manual D duct design distributes the correct amount of heating and cooling to each room based on the Manual J load calculation results. The furnace and A/C selected during the ACCA (Air Conditioning Contractors of America) Manual S process will determine the duct CFM for your exact humidity and winter and summer design temperatures.

Manual T shows you how to prevent drafts and stagnant air problems caused by improper sizing or incorrect equipment selection. It shows you, in step-by-step detail, how to select, size, and locate the supply air diffusers, grilles and registers, and the return grilles. It gives you examples of how to use manufacturers comprehensive performance data, calculate pressure losses, and control noise.

Variable Refrigerant Flow (VRF) HVAC systems consist of outdoor units connected to multiple indoor units via refrigerant piping to provide cooling and heating to individual zones. The outdoor units can modulate capacity based on the requirements of the individual zones, thus saving energy by not always running at 100% capacity and improving  occupant comfort by maintaining temperature as needed in each individual zone.

An Energy Calculation report is used to calculate different ways to comply with Energy codes, generally set forth by the International Energy Conservation Code (IECC).

We provide detailed specs of manufacturer, model, size, air settings, specifications, and electrical requirements of the needed HVAC equipment for your project. 

We assist in providing a wide range of building documents that are required by building departments to grant permits. These documents are crucial for ensuring that the proposed construction project meets all the necessary safety and regulatory standards, and that the building will be safe for its intended use. 

We offer consulting that compliments our list of services. That can include running calculations that fall outside of permitting, evaluating designs, as well as reviewing calculations from other firms. 

Converting hand drawings and notes into beautiful professional building plans is a process that requires a high level of skill and attention to detail. It involves taking rough sketches and notes, and turning them into detailed, accurate and professional-grade building plans.