Harman Martin Exterior Projection 1000, Руководство пользователя

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Exterior Projection 1000 User Manual 35
4. Wash the aluminum housing and front glass using warm water with a little mild detergent and
a soft brush or sponge. Do not use abrasive cleaners.
5. Rinse with clean water and wipe dry.
Managing humidity
Martin Exterior fixtures are IP66-rated and are designed to resist water and moisture in
environments with widely varying climate, temperature and humidity conditions. But if fixtures are
not managed correctly during installation and service, water and moisture can enter, leading to
humidity and condensation inside the fixtures. Maximize the performance and service life of your
product by following the precautions in this section.
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.
•
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).
•
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 Gore-Tex membrane on the back of the fixture (see ‘Fixture overview’ on page 11)
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 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.