Quick Reference Guide

Table Of Contents

Introduction

The purpose of this manual is to aid in the selection and pricing of water pipe risers for high rise

fan coils. Because of the volatility in copper cost, the proper selection of riser diameter is critical

to designing a cost effective job. If the riser diameter is too small, the water velocity through the

riser pipe may cause excessive water pressure drop due to friction loss and/or erosion of the pipe.

If the riser diameter is too large, the cost of the fan coil unit and riser system may become

unnecessarily high making the equipment bid uncompetitive. Therefore riser sizes are chosen to

minimize initial cost while avoiding the undesirable effects of high water velocities.

Noise, erosion, and installation and operating costs all limit the maximum and minimum velocities

in the riser system.

Trademarks

Trane and the Trane logo are trademarks of Trane in the United States and other countries. All

trademarks referenced in this document are the trademarks of their respective owners.