Heads up: There are no amended sections in this chapter.
About this chapter: Chapter 11 describes the performance provisions for building mechanical systems. It addresses the installation and functions of HVAC, refrigeration and piped services. The provisions of this chapter focus on the performance of the equipment versus issues related to indoor air quality. Chapter 10 provides more guidance on indoor air quality and climate.
To provide the safe installation of the equipment to condition the air for the health and comfort of the occupants.
The installation of equipment shall safeguard maintenance personnel and building occupants from injury and deliver air at the appropriate temperature for health and comfort.
People and building elements shall be protected from contact with hot and live electrical parts.
The HVAC system shall allow safe isolation and access for service and replacement of equipment.
The HVAC system shall include devices to monitor and control the temperature.
HVAC equipment and appliances shall be secured in place.
To provide the safe installation and operation of refrigeration equipment.
The installation of equipment shall safeguard maintenance personnel and building occupants from injury.
People and building elements shall be protected from contact with hot or live electrical parts.
Refrigeration equipment shall allow safe isolation and access for service and replacement of equipment.
Refrigeration equipment shall include devices to monitor and control temperature.
Refrigeration equipment shall have appropriate safeguards where utilizing toxic or flammable refrigeration agents.
To safeguard people from injury or illness caused by extreme temperatures or hazardous substances associated with building services.
In buildings with potentially hazardous services containing hot, cold, flammable, corrosive or toxic liquids or gases, the installations shall be constructed to provide adequate safety for people.
Piping systems shall be constructed to avoid the likelihood of:
- Significant leakage or damage during normal or reasonably foreseeable abnormal conditions.
- Detrimental contamination of the contents by other substances.
- Adverse interaction between services or between piping and electrical systems.
- People having contact with pipes that could cause them harm.
Pipes shall be protected against corrosion in the environment of their use.
Piping systems shall be identified with markings if the contents are not readily apparent from the location or associated equipment.
Enclosed spaces shall be constructed to avoid the likelihood of accumulating vented or leaking flammable gas.
A piped system shall have isolation devices that permit the complete system or components of the system to be isolated from the supply system for maintenance, testing, fault detection and repair.