Harbor Freight Tools 91393 User Manual

Page 9

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SKU 91393

PAGE 9

CONTROL OPERATION

Note: These instructions apply to both the manual controls and the remote control. See

Figures 1 and 2.

1.

The Pull Chain (34) under the control panel switches between standby mode and
totally off. When in standby mode the unit will operate when the on/off button on the
remote or the panel is pressed. The Chain may break if pulled hard or abruptly.
This Chain may be used to stop the Air Filter System in the event of an emergency.

2.

Press the “On/Off” button to activate the unit from standby mode. It switches on at
high power initially.

3.

Press the “Speed” button once for high power, twice for medium, and three times for
low power. The three lights referred to as “Speed Indicators” in Figure 1 indicate,
from left to right; high, medium, and low speed.

4.

Press the “Timer” button once for 2 hour automatic shut off, or twice for 4 hour
automatic shut off. The three lights referred to as “Timer Indicators” in Figure 1
indicate, from left to right; on continuously (no timer), 2 hour timer, and 4 hour timer.

5.

The lights between the Speed and Timer Buttons indicate the speed that the unit is
operating at. The faster the speed is the faster these lights flash.

6.

To turn off the unit manually, press the Off button.

Note: To change batteries in the Remote Control (35); remove the back panel, replace the

two “AAA” batteries, then replace the back panel.

FIGURE 2

FIGURE 1

Speed

Indicators

Timer

Indicators

Red Standby

Mode Indicator

Pull

Chain (34)

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