Martin Exterior Projection Pro Compact handleiding

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Handleiding

30 Martin

Exterior Projection Pro Compact User Manual, Rev. A

General

• Carry out service during low-humidly weather conditions (or indoors if possible). Check that fixtures

are dry and free of moist air before closing them.

• Each time you open the fixture, follow the instructions given in the Safety and Installation Manual

included at the end of this User Manual.

• Tighten cover screws exactly as directed in this manual and using a torque driver.

• Make sure that all threads are clean and dry. Do not apply lubricant to threads before assembly.

While lubricant may make disassembly easier during future service, it means that tightening screws

to the specified torque will compress seals too much.

• Air and water can be sucked along cables and into fixtures. A cracked or porous cable jacket can

allow water into the cable. Replace any cable that is not in perfect condition. Make sure that cables

from fixtures open into dry areas (e.g. junction boxes in dry locations).

• Fixtures can withstand rain and water projections, but do not clean fixtures with high-pressure

water jets or immerse them.

Seals and sealing surfaces

The fixture must be sealed effectively. Covers have silicone seals that will withstand rain and water

splashing but will not withstand immersion or high-pressure water jets. Reinstall covers and seals

carefully if you have removed them.

• Make sure that seals and sealing surfaces are perfectly clean, dry and in perfect condition before

installing a cover. If you need to clean seals, use water and a soft cloth only. Replace any seal that

shows signs of aging, damage, cracking, stretching or deformation. Replacement seals are

available from Martin.

• Reinstall seals in exactly their original position.

• Install seals so that they closely follow the profile of the metal parts they are installed on. When you

run your finger around the sealing surface after you have installed a cover, you should not be able

to feel any places where the seal sticks out or sinks into the gap between the sealing surfaces.

• Do not use liquid gasket or any other type of sealant on sealing surfaces or seals.

Pressure relief valves

A valve with a gas-permeable membrane on the back of the fixture between the two cable glands

equalizes pressure by allowing air to pass through it when the fixture heats up and cools down, but at

the same time it acts as a barrier to water in liquid form. The expulsion of warm air (with a slightly

higher water vapor content) and intake of cool air (with a slightly lower water vapor content) prevents

humidity buildup over time provided that the valve works correctly and that the fixture is correctly

sealed.

Valves become blocked over time as the micropores in the membrane fill with particles. If a valve

becomes blocked by dirt or water, excess pressure can damage seals or cause air and even water to

be sucked into the fixture along cables. Valves cannot be cleaned and must be replaced if they show

any signs of contamination or if they are not in perfect condition.

To obtain the maximum service life from your fixture, follow these guidelines:

• Do not allow water to collect on or near pressure relief valves. Do not install a fixture with the valve

membrane horizontal so that water can pool on it.

• Replace a valve with a new item if it shows any signs of contamination or is not in perfect condition.

• Replace valves after an extended period of use. Intervals for valve replacement depend on the

installation environment.

• Consult your Martin dealer about a suitable valve replacement schedule.

• Contact Martin Service if a valve requires replacement

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