User manual ROTEL RKF-100

[. . . ] The dealership from which you purchased the product is an expert on custom installation procedures and can provide invaluable advice to help you make an aesthetically pleasing and trouble free installation. Please read all the safety and operating instructions shown in this manual before operating this equipment. The lightning flash within an equilateral triangle shown below is intended to alert you to the presence of uninsulated `dangerous voltage' within the product's enclosure that may be of sufficient magnitude to constitute an electric shock. [. . . ] This will prevent damage to the product due to lightning or power line surges. Rotel products are designed to comply with international directives on the Restriction of Hazardous Substances (RoHS) in electrical and electronic equipment and the disposal of Waste Electrical and Electronic Equipment (WEEE). The crossed wheelie bin symbol indicates compliance and that the products must be appropriately recycled or processed in accordance with these directives. Clean the product by dusting with a dry cloth. Do not permit objects of any kind to be pushed and/or fall into the product through the enclosure openings. With the mode switch in the 12V position, and the `in' input being used, the RKF-100 will move into its `auto' mode whenever a 6V to 15V input signal is supplied and the prescribed initial temperature has been reached. Should you want to use one or more RKF-100's within the same location you can synchronize the units by using the `sync' switch. For this situation you should use the `out' jack from one unit (which then becomes the `master') and go into the `in' jack for the second unit (which then becomes the `slave'). The two units will now be `in sync' and will start to work in unison once the prescribed initial temperature of the `master' unit has been reached. Note that in this type of multi-unit installation all of the internal temperature sensors of the `slave' units are defeated. 75-inch (120 mm) whisper quiet fans, the speeds of which are governed by thermal sensing circuitry. The RKF-100 is designed to be used in three different formats -intake/blow/exhaust air. The required mode can be configured locally according to the cooling requirements of your system. The RKF-100 has many other features and functions that are all described in the following pages. [. . . ] This input enables you to connect the (supplied) pigtail sensing cord. The magnetized `head' should be placed on the `hot spot' of your installation whereupon it will measure the ambient temperature, which in turn will govern the speed of the three fans. please note that there is also an in-built sensing device located on the underside of the chassis that is by-passed if the pigtail sensor is used. [. . . ]