Mechanical Refrigeration and Air Conditioning Installations Aboard Ship
ASHRAE Standard Project Committee 26

1. PURPOSE: This standard provides the minimum general requirements for the design, construction, installation, operation, inspection and maintenance of mechanical refrigeration and air conditioning equipment aboard ships to permit the safe, efficient and reliable operation of such systems.

2. SCOPE:

2.1 This standard covers:
(a) refrigeration and air conditioning systems that are an integral part of the main mechanical plant of merchant, fishing and seafood processing ships, and
(b) refrigerated sea water and brine chilling systems that air condition and dehumidify passenger and cargo spaces, chill or freeze perishable cargo or maintain storage of chilled or frozen cargo.

2.2 This standard does not cover:
(a) details of system designs or applications,
(b) small, self contained units which are not an integral part of the ship's main mechanical plant such as electric water coolers, reach-in refrigerators and room air conditioners,
(c) cargo containers with self contained refrigeration systems, and
(d) liquefied gas ships.

2.3 Exceptions to the literal details of this standard may be used when approved by the authorities having jurisdiction when equivalent safety, efficiency and reliability are achieved.