Testing Central Heating Systems - CHECK OF LEARNING

What is the code of practice for the treatment of water in domestic hot water central heating systems known as?

• BS 14336:2004

• BS 7593

• BS EN 14336:2004

• BS EN 7593

Which step comes immediately after the 'Cold flush' when testing central heating?

• Soundness Test

• Cleanse system (BS 7593)

• Hot flush

• Fill system (inhibitor)

What is the final step in the heating system testing procedure ?

• Hot flush

• Fill system (inhibitor)

• System check

• Soundness Test

What is the first step in preparing a hydraulic pressure test according to the document?

• Open all valves in the test section.

• Blank, plug or seal all open ends.

• Check that all high points have vents.

• Remove and/or blank off vulnerable items.

What should be done with the valves in the test section during the preparation for a hydraulic pressure test?

• Close all valves in the test section.

• Open all valves in the test section.

• Remove all valves in the test section.

• Check all valves for leaks.

What is the general formula for determining the system test pressure in plumbing?

• Test pressure = Operating pressure + 1.5 bar

• Test pressure = Operating pressure x 1.5

• Test pressure = Operating pressure / 1.5

• Test pressure = Operating pressure - 1.5 bar

If a sealed system has an operating pressure of 1 bar, what would be the acceptable test pressure?

• 0.5 bar

• 1 bar

• 1.5 bar

• 2 bar

According to BS14336, what is the recommended test duration for a plumbing system?

• One hour

• Two hours

• Three hours

• Four hours

For an open-vented system with a head pressure of 8m, what would be the test pressure?

• 4 bar

• 8 bar

• 2 bar

• 1.2 bar

What is the first step in hydraulic pressure testing according to the procedure?

• Release air from high points systematically.

• Raise the pressure to test pressure and seal.

• Walk the system continuously checking for leaks while filling it with water.

• Check that stop valves are not letting (passing) and then walk the system again checking for leaks.