Our experience has been that the standard 62 1 2013 garage exhaust rate is extremely conservative.
Carbon monoxide ventilation control parking garage.
Control and detection equipment carbon monoxide co is the major pollutant in parking facilities.
While many parking garage applications require a carbon monoxide transmitter with a current or voltage signal to a building management system bms controller there are applications for smaller garages service stations for the carbon monoxide sensor to provide relay contacts to control the fan or damper operation directly without the bms controller.
Background on carbon monoxide sensing technologies for parking garages.
As cities around the world continue to grow the need for parking becomes an integral part of new commercial and municipal building plans.
Variable speed exhaust fan with carbon monoxide sensors design a ventilation system with a variable speed drive that will modulate the fan speed based on the concentration of carbon monoxide in the garage.
In multi level parking garages or single level structures of extensive area independent fan systems each under individual control are recommended the ventilation system in parking garages in.
Understanding the parking garage opportunity.
The dwyer series gsta carbon monoxide and nitrogen dioxide gas transmitters offer robust low cost alternative to standalone garage ventilation control packages.
In the united states the bulk of automobiles sold utilize a combustion engine which in turn produces a potentially harmful and dangerous gas carbon monoxide co.
The concentration of other pollutants such as nitric oxides and soot are considered less critical.
With fan speed controlled by carbon monoxide co concentration as required by ashrae standard 90 1 20133and california s 2013 title 24 energy standards4for most garages we find exhaust rates seldom exceed half of the design rate and even then only for short periods in the evening rush hour due to cold engine starts.
Stand alone carbon monoxide control.
Controlled by carbon monoxide meters with multiple fan or variable speed stages for larger systems if permitted by local codes.
Using co 2 to control odors in parking facilities.
Variable speed drive will significantly lower energy costs over time.
The 2018 code continues to move best practices forward with respect to both energy efficiency and human safety.
In fact all enclosed parking garages in north america are subject to ventilation standards established by the international mechanical code imc and the american society of heating refrigeration and air conditioning engineers ashrae to help ensure the safety of those using the parking garage.
Co 2 reference library.
Co is a colorless odorless poisonous gas produced from the incomplete combustion of carbon based fuels.