According to ACR, The NADCA Standard, properly performed HVAC system cleaning services should:

A. eliminate all contamination.

B. restore the internal insulation to an “as new” condition.

C. restore the evaporator coil to its original pressure drop.

D. render the system visibly clean.

A package unit contains which of the following components?

A. Compressor, evaporator coil, condenser, supply fan, and filter

B. Evaporator coil, VAV box, condenser, supply fan, exhaust fan, and filter

C. Compressor, hat water coil, condenser, supply fan, exhaust fan, and filter

D. Compressor, evaporator coil, condenser, supply fan, thermostat, and filter

When a properly wired condensate pump fails, it will:

A. turn off the HVAC system.

B. allow bypass of the condensate.

C. maintain HVAC system airflow.

D. engage dehumidification cycle.

If a condensate pan is full of water, what should the ASCS check FIRST?

A. Coil leakage

B. Pan slope

C. Plenum pressure

D. Drain line

Which component can be found in a fan coil unit?

A. Condensate pan

B. Humidifier

C. Turning vane

D. Diffuser

A client is noticing black particulate coming out of the diffusers and ending up on desks. During the initial inspection, the ASCS should pay close attention to the:

A. condition of the ceiling tiles.

B. condition of the internal duct insulation.

C. condition of the external insulation on the return.

D. closed cell foam insulation covering the AC line set.

What resource is BEST to refer to when determining if all project work has been completed?

A. ACR, The NADCA Standard

B. Scope of work

C. Hazard assessment

D. Inspection report

There are several methods to clean an HVAC system. What is the PRIMARY objective of cleaning as described in ACR, The NADCA Standard?

A. Looks cleaner

B. Source removal

C. Smells better

D. Lowers fan noise

Which of the following standards BEST addresses the topic of accessing internally-lined ductwork for cleaning and inspection?

A. NFPA 90A

B. IICRC S520

C. NAIMA AH122

D. IICRC S500

A balometer (flow hood) is MOST frequently used by wh2024/8/1ich of the following trade persons?

A. Architect

B. Industrial hygienist

C. Filtration specialist

D. Test and balance specialist