scope:

This second edition of HVAC Design Manual for Hospitals and Clinics adds updated information, provides in-depth design recommendations based on best practices, and presents proven, costeffective, and reliable solutions that result in low maintenance cost and high reliability. Our intent is that this edition of the manual focuses specifically on heating, ventilating, and air-conditioning (HVAC) system design for health care facilities, omitting general system descriptions that are readily available in other ASHRAE publications. Instead, our focus has been to present "what's different" about health care HVAC.

Although not a consensus document, this manual draws heavily on ANSI/ASHRAE/ASHE Standard 170-2008, Ventilation of Health Care Facilities, which is a consensus document. Citations of the standard throughout this book should be understood to include its Addenda a to t and v.

This edition is the result of a concerted effort by a fine group of volunteers whose job was made immensely easier by having the first edition to build upon. By intent, the authoring committee was composed primarily of consulting engineers with long experience in the design and construction of health care facilities. Jeff Hardin and John Kramer worked hard on both editions. Hospital engineers John Kramer, Heather Platt, and Ron Westbrook also wrote chapters and provided invaluable input to the entire book. Engineering editorial assistance was provided by John Murphy, and Walter Grondzik was technical editor. Kelley Short and Kelsey Grondzik assisted with tables and illustrations.

The intended audience for this manual includes

• consulting engineers;

• experienced hospital designers who will use it as a reference;

• mechanical engineers who wish to become familiar with health care design;

• young engineers who seek a career specializing in health care HVAC design;

• facility managers;

• infection control personnel;

• managers of planning and design;

• maintenance staff;

• contractors;

• developers; and

• code, accreditation, and licensure officials.