Martin MiniMAC Maestro Manuel d'utilisateur télécharger pdf (Page 58)

58 Seal maintenance

Seal maintenance

The Exterior 600 has an IP rating of 65: it is protected against dust and can

withstand low pressure water jets. To maintain protection against dust and

water:

• Verify that cable glands are tightened both to the casing and the cable.

• Replace any seal that becomes brittle or shows visible signs of wear.

• Verify that seals are flush with, or protrude slightly above, the surface of

the aluminum covers.

The seals must extend 0.5 - 1 mm (1/64 - 1/32 in.) beyond the outside of the

casing. If you can feel the seal when you run a finger across the joint, that’s

enough. A good seal will be maintained if the seals are flush with the casing,

but if they are below the casing’s edge, they can collapse into the unit and

let water in.

The silicone seals should maintain their sealing ability for the life of the

fixture. When servicing the fixture, note the condition of the seals and

replace any seal that is cracked, torn, brittle, or inflexible. Replacement

seals may be ordered from your Martin Architectural dealer.

Two water and oil-repellent GORE-TEX membrane air vents in the rear

cover of the Exterior 600 allow air to pass through the housing. These expel

moisture as the luminaire heats up and cools down and equalize pressure

differences, eliminating the potential for vacuum that can suck moisture into

the fixture if it is improperly installed or maintained.

Seals and torque settings

To maintain the fixture’s resistance to dust and moisture, it is important that

you reinstall covers and seals carefully after removal.

To ensure a correct seal at critical joints, a quality torque wrench or driver

with an adjustment range that includes 1.0-2.0 Nm (0.8-1.5 Ft-Lbs) must be

used to tighten screws to the torque settings specified in this manual.

Damage caused by incorrectly torqued screws is not covered by the product

guarantee.

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Martin MiniMAC Maestro Manuel d'utilisateur Page 58