Our Services → HVAC Diagnostics
About Air Test and Balance
Air testing and balancing is a process that measures and adjusts
the supply air distribution of a given HVAC system. The purpose
of testing and balancing an HVAC system is to supply each conditioned
zone with the precise amount of supply air required to offset a
given heat gain (or loss).This process is typically performed after an HVAC system has been
installed. The amount of airflow into each zone is determined from
the mechanical design plans.However, air testing and balancing is also performed in response
to certain cases of occupant thermal discomfort. If occupant thermal
discomfort exists in a building with a properly sized and balanced
HVAC system, fine tuning adjustments to supply registers may be
necessary to satisfy all occupants.
Certified Air Test and Balance
In either case, Enviro Team North America has the ability
to properly test and balance HVAC systems. Our staff includes consultants
trained and certified by the National Balancing Council in the field
of commercial HVAC air and hydronic testing & balancing.
Duct Leakage Assessment
A duct leakage assessment is a process that quantifies the total
amount of duct leakage throughout a given HVAC system. Total duct
leakage is quantified by pressurizing a duct system to a known pressure
and measuring the rate at which the pressure reduces.
- Hygiene Assessments
- Ventilation Assessments
- HVAC Assessments per ASHRAE Standards
- Temp/Humidity/Dew Point Monitoring
- Humidity Control
Thermal comfort is a condition where individual(s) express the
satisfaction or dissatisfaction within the thermal environment. The
thermal environment is those characteristics of the environment
which affects a person's heat loss, which in turn may cause thermal
discomfort. In terms of individual’s senses, thermal comfort
or discomfort is a sensation of hot, warm, slightly warmer, neutral,
slightly cooler, cool and cold.
Relative humidity and ambient temperature become the most critical
factors for maintaining satisfactory thermal comfort. Unfortunately,
however, temperature preferences vary greatly among individuals
and there is no one temperature that can satisfy everyone. Therefore,
maintaining consistent thermal conditions in the environment (office/home)
is very important.
We are available to assist our clients in understanding the cause(s)
associated with thermal discomfort, We also have the required experience
and equipment to evaluate complex thermal issues in residential
and commercial settings.
Heat Gain / Heat Loss Analysis
A heat gain / heat loss analysis is a process by which the amount
of heat entering (or exiting) a building is quantified. The reason
that the total heat entering (or exiting) a building must be determined
is to properly size the heating / cooling equipment for the building.
A building’s HVAC (Heating, Ventilating & Air Conditioning) system has two main functions: controlling
indoor temperature and controlling indoor moisture levels. A properly
sized HVAC system will maintain indoor temperature and moisture
levels at a given design condition. HVAC systems that are too small
for a given application will have trouble maintaining indoor set
point temperatures during peak load times. HVAC systems that are
too large for a given application will have trouble maintaining
indoor moisture levels within an acceptable range. Both cases can
lead to different forms of occupant thermal discomfort.
Enviro Team North America has the ability to perform heat gain
/ heat loss calculations on both residential and commercial buildings
to assist our clients on a variety of projects.