QSC Audio HPR122i, HPR152i, HPR153i, HPR151i, HPR181i user manual Installation continued, Cooling

Installation (continued)

Pick Points (suspended installations)

The HPR152i and HPR153i enclosures feature three load-rated pick points. The HPR122i enclosure features nine load-rated pick points. As shipped from the factory, each pick point has a bolt or plug installed to retain the air-tight design of the enclosure. Never operate the loudspeaker with the pick points open (unsealed) as it will degrade the performance of the product.

Ensure all pick-point fasteners are installed and correctly tightened in order to maintain enclosure’s rated strength. Additionally, air leaks resulting from missing hardware will degrade the loudspeaker’s performance.

Use only QSC’s M10 forged shoulder eye bolts. Contact QSC Technical Services department for complete information.

Cooling

This is a self-powered loudspeaker containing an internal power amplifier that produces heat. Allow a minimum of 6” (152mm) clearance at cabinet back for convection cooling. Keep anything that might restrict airflow away from the rear of the enclosure (i.e draperies, fabric, etc...).

Do not use the HPR152i, HPR153i, HPR151i, or HPR181i oriented horizontally. Horizontal orientation can cause overheating and thermal limiting. The cooling fins on the amplifier module must be vertically oriented in order to efficiently dissipate the heat gener- ated by the amplifier.

Do not install enclosures with their rear panels exposed to direct sunlight. Direct sunlight will heat the amplifier module and reduce its ability to produce full output. Install sunshades if the applica- tion merits.

Maximum ambient temperature for full performance to specifica- tion is 40° C. (104° F.).

Do not install enclosures where exposed to rain or other water sources. The enclosure is not weatherproof. Outdoor installations must provide protection from the elements.

Pickpoints on the HPR122i

Pickpoints on the HPR152i and HPR153i

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