Section 5 Testing and trials
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Naval Ships, January 2023 - Volume 2 Machinery and Engineering Systems - Part 11 Support Systems - Chapter 2 Heating, Ventilation and Cooling Arrangements - Section 5 Testing and trials

Section 5 Testing and trials

Parent topic: Chapter 2 Heating, Ventilation and Cooling Arrangements

5.1 Testing

5.1.1 The requirements of the Rules relating to testing of pressure vessels, piping and related fittings including hydraulic testing are applicable. (See Vol 2, Pt 8, Ch 2, 10 Hydraulic tests and Vol 2, Pt 7, Ch 1, 16 Testing).

5.1.2 On completion, tanks and reservoirs for service and storage of system fluids are to be tested by a head of water equal to the maximum to which the tanks may be subjected, but not less than 2,5 m above the crown of the tank.

5.1.3 After installation on board, piping systems together with associated fittings that are under internal pressure, are to be subjected to a running test at the intended maximum working pressure.

5.1.4 Testing is to cover the following items:

  1. Verification of control, alarm, safety systems.

  2. Tests simulating failure of HVAC equipment to verify correct functioning of alarms and systems in service.

  3. Verification of accuracy, calibration and functioning of temperature control for HVAC systems.

5.2 Type testing

5.2.1 Evidence that the required performance of heating/cooling/filtration systems, pump and fan equipment is capable of being maintained under ambient and inclination operating conditions defined in Vol 2, Pt 1, Ch 3, 4.4 Ambient reference conditions and Vol 2, Pt 1, Ch 3, 4.6 Inclination of ship is to be provided by the manufacturer.

5.3 Trials

5.3.1 Trials are to be carried out to demonstrate that the capability of the HVAC systems meets the System Design Description. The trials are as far as practicable to be representative of the actual conditions to be encountered in service.

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