AHUs
Building Pressurization
Controls
Psychrometrics
Potpourri
100

The "outer skin" of an air handling unit.

Casing

100

A system that serves several rooms, spaces, and scenarios.

Multizone system.

100

A device used to ramp up or ramp down fans, pumps, etc.

Variable Frequency Drive (VFD)

100

The psychrometric property you can measure with a standard thermometer.

Dry-Bulb Temperature

100

The best part of lunch.

Monday's macaroni and cheese. 

200

The most common fan wheel for HVAC applications.

Forward curved (squirrel sage).

200

A fan that can be used to help heat or cool large open spaces. 

High Volume Low Speed Fan (HVLS)
200

Temperature, humidity, static pressure are examples of these.

(Analog) Inputs

200

The psychrometric property that is is most affected by evaporative cooling.

Dry-Bulb Temperature

200

Beth Clark's dream job.

PSFEI Education Manager

300

A series of small fans in lieu of a larger fan. 

Fan wall.

300

A control method that prevents the flow of contaminants into or out pf zones. 

Pressure Control

300

0-10 Volts, 4-20 milliamps, and pulse width modulation are examples of this.

(Analog) Signals

300

The psychrometric property portrayed as a percentage that varies with air temperature even when other factors are constant.

Relative Humidity

300

This instructor once held a powerlifting record.

Kevin Lynch.

400

The filter category with the "tightest mesh".

HEPA (High Efficiency Particulate Air)

400

An airlock type that that supports flow from high pressure, to medium pressure, to low pressure. 

Cascade 

400

Start/stop, open/close, enable/disable are examples of these.

Binary Output Signal.

400

The process of mixing outdoor air above the minimum required rate to save energy and money.

Economizer Cycle.

400

The instructor that is from New Jersey, but often references being from Missouri sarcastically. 

Antonette Mitterando

500

The process of using a wheel or another device to temper air.

Energy Recovery

500

In 2010 the DOE determine 6% of total commercial building energy used was lost to this.

Leakage (Infiltration, Exfiltration)

500

ANSI/ASHAE Standard 135-2024.

The current standard for BACnet.

500

The psychrometric property PSFEI advises the economizer cycle be controlled off of. 

Enthalpy

500

May 19th through May 21st.

The Effective Facilities Management (EFM Course).