OTO 066/2001

Heating, ventilation and air conditioning

In this Offshore Technology (OT) Report the initials HVAC are used to denote the discipline relating to design and operation of heating, ventilation and air conditioning systems.
HVAC forms part of the essential safety services of the Installation and complements area
classification requirements associated with electrical equipment. It is suggested that HVAC systems should be provided to prevent ingress of potentially explosive / toxic gas-air mixtures into nonhazardous areas, such as living quarters, electrical switch rooms and equipment rooms. Dilution ventilation services would need to be provided for all enclosed hazardous areas in order to reduce the risk from build-up of potentially explosive / toxic gases within these spaces. HVAC systems are not intended to control a catastrophic event but to inhibit reaching this situation.

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Updated 2021-04-14