HVAC Basics

Question 1

What is Air Conditioning?

Answer 1

The delivery of conditioned air to occupants

Question 3

Basic Components of AC System?

Answer 3

Cooling Tower

Chiller

Air Handling Unit

Ductwork

Zoning

Question 4

Types of Cooling Towers?

Answer 4

Evaporative Water Cooled

Traditional Air Cooled

Question 5

CHILLER

Answer 5

Evaporator- COLD
Chilled Water enters the evaporator after transferring heat in Cooling Tower

Condensor - HOT

Question 6

AHU Components

Answer 6

(Air Handling Unit)

Outside Air- 10-20%
Coils
Filter
Fan

Question 7

DUCTWORK Components?

Answer 7

Distributes Air throughout the building

Filters

Dampers (Terminal Units)

Heating Coils (possibility for high heat loads)

Lining/ Attenuators (Noise)

Question 8

GRD’s?

Answer 8

They deliver and remove air to occupants

Grilles

Registers

Diffusers (outlet)

Question 9

ZONING

Answer 9

Loads

Thermostats

Question 10

What is a BMS?

Answer 10

Building Maintenance System

Question 11

Compliance

Answer 11

AIRAH- DA19
AIRAH Recommendations

Cooling Tower Compliance-
Testing
Cleaning
Chemical Water Treatment

Question 12

How to prepare a Maintenance Strategy?

Answer 12

Produce Asset Register

Existing operational and maintenance documentation

Establish benchmarks

Maintenance Specification- SLA (comprehensive or preventative) refer to AIRAH DA19

Question 13

What does a Building Maintenance System do?

Answer 13

Controls the HVAC System in the building so alterations an be done via a computer (usually remotely also).