Three Pipe System

General

Three pipe systems have separate chilled and hot water supplies with a common return. Three-pipe systems are rarely installed due to the wasteful use of energy caused by excessive mixing of the chilled and hot water in the common return.

three pipe system

Links to Related Topics

Ventilation
Indoor Air Quality
Filtration
Outside Air Control
Controls
Central Plant System
Central (or Built-Up) System
All-Air Central Systems
All-Air Central Reheat Systems
All-Air Central Dual Duct
All-Air Central Multizone
All-Air Rooftop
Air-Water Central Systems
All Water Central Systems
Two Pipe System
Four Pipe System