IAQ For the HVAC Technician

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IAQ For the HVAC Technician

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1. True or False: VOCs in cleaners CANNOT off-gas through their bottles, so they're only a threat to IAQ if customers leave them open.

True False

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2. According to statistics from 2020, how much do U.S. consumers spend on IAQ yearly?

$20 million $100 million $10 billion $20 billion

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3. How often should we test IAQ for a customer?

As frequently as a temperature or electrical measurement Yearly Every five years Each time a system is replaced

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4. True or False: Brynn Cooksey's "As-Is Test" is a service that lets HVAC techs and customers know if they should investigate IAQ issues further; it isn't a diagnostic or comprehensive test.

True False

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5. Which IAQ hazard can enter the bloodstream and is in the top 5 health hazards according to the EPA?

Fungal spores Pet dander PM 2.5 PM 10

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6. Which VOC in many of our common household cleaning products has been proven to be carcinogenic?

Butane Propane Acetone Benzene

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7. Which of the following is NOT a health issue associated with chemical pollutant concentrations above 500 micrograms per cubic meter?

Bloody nose Pink eye Liver problems All of the above are health issues associated with chemical pollutant concentrations that exceed the threshold

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8. Photocatalytic oxidation (PCO) products produce ___________________.

Water Carbon dioxide Both A and B None of the above

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9. Carbon monoxide bonds to the compounds in your blood __________ faster than oxygen.

20x 100x 150x 200x

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10. How do we determine the number of occupants for calculating whole-building ventilation requirements?

Count the number of bedrooms Count the number of bedrooms +1 Count the number of people currently living in the house Ask the fire marshal about local occupancy limits

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Some best practices to take away from this episode include attaching to the vapor side of the tank (and inverting it), pulling Schrader cores, using large hoses instead of manifold gauges, and keeping the recovery tank cool to eliminate restrictions.

This episode contains embedded sponsor messages from Refrigeration Technologies, Carrier, Copeland, Santa Fe Dehumidifiers, and TruTech Tools.

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