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Objectives. Review/Learn about HVAC Configurations Describing systems and processes in the psychrometric chart Analyze processes in AHU and buildings Finish examples from the text book. Single zone CAV. Single zone multi-room CAV. Multi zone CAV with Reheater. Duct reheat unit.

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Objectives
Objectives

  • Review/Learn about HVAC Configurations Describing systems and processes in the psychrometric chart

  • Analyze processes in AHU and buildings

    • Finish examples from the text book












Cav dedicated outdoor air system doas with fan coil units
CAV Dedicated Outdoor Air System (DOAS) with Fan Coil Units

Exhaust

100%OA

For ventilation

and humidity

control

Fan coil units for

heating and cooling


Fan coil units
Fan Coil Units

Fan coil Units can be combined with mechanical ventilation or rely on infiltration


Vav dedicated outdoor air system doas with occupancy sensors
VAV Dedicated Outdoor Air System (DOAS) with occupancy sensors

Exhaust

100%OA

VAV box

VAV box

CO2

CO2

For ventilation

and humidity

control

Fan coil units for

heating and cooling


Fan terminal units same as fan coil
Fan Terminal Units Same as fan coil

Can be with

or without

recirculation


Hvac systems
HVAC Systems

Multi zone

Single zone

All Hydroinic

that relay on

infiltration

VAV

CAV

CAV

VAV

With and

without

humidity

control

With and

without

reheaters

Dual

duct

Dual

duct

With

reheaters

DOAS with

fan coils

DOAS with

fan coils

This is not the complete list !


Single zone systems
Single-Zone Systems

Zone – any space with a thermostat







Heart recovery by air to air and air water air heat exchanger
Heart recovery by Air-to-air and air-water-air heat exchanger


Summary of hvac systems
Summary of HVAC Systems

  • Show HVAC processes on a psychrometric chart

  • Draw condition lines

    • Define sensible heat ratio

  • Draw HVAC processes for real buildings

    • Single zone

    • Multiple zone


Reading assignmentsrelated to the HVAC systemsChapters 7 & 8andHandout Section on the course website


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