Rotel RFK-100 Manuel du propriétaire télécharger pdf (Page 3)

Trigger In/Out 12VDC Mode

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.

Fan Auto-On Temperature

This switch enables you to pre-select one of two temperature

settings for activating the RKF-100. The low setting is 95

degrees Fahrenheit (35 degree Celsius) and the high

setting is 104 degrees Fahrenheit (40 degrees Celsius).

This important feature ensures that the fans only work

above the selected ambient temperature.

If you want to exhaust the hot air to the outside you will

need to remove the two ‘plugs’ and attach ﬂ exible tubing

(not included with the unit). Please see page 4 for a

fuller description of this feature.

Fill out and send in the owner’s registration card packed with

the RKF-100. Also be sure to keep the original sales receipt.

It is your best record of the date of purchase, which you will

need in the event warranty service is ever required.

Care of the Product

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.

General Description

The RKF-100 is a multi-directional fan system that uses three

4.75-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

conﬁ gured 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.

Front Panel Description

The (removable) rack mountable front panel houses a switch

for controlling the on/off and auto functions. A blue LED

indicates when the unit’s fans are actually working.

Behind the grille front is a removable air-ﬁ lter pad.

It is important to note that the only time the switch

needs to be in the ‘on’ position is during an initial

test when the fans will be operating at their

maximum speed. Once the RKF-100 has completed

its test, it is recommended that the switch be

placed in its ‘auto’ position. In this mode neither

the fans nor the LED will operate until the selected

ambient temperature is reached.

Rear Panel Description

The following description identiﬁ es each of the main controls

/connections and follows the rear panel from left to right.

Temperature Sensor

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. If the pigtail sensor is not

used, then the in-built sensor will automatically activate

once the selected minimum temperature has been reached.

English

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Rotel RFK-100 Manuel du propriétaire Page 3

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