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Hersteller: Essick Air Dateigröße: 1013.76 kb Dateiname: Unterrichtssprache:

This cable is not supplied. AWARNING: The thermostat cable should not be routed next to or enter the cabinet through the same inlet as the power supply wire. 3) Connect the thermostat wires to the terminals on the back of the wall control and to the terminals located on the left side of the control box in the unit. Make sure to follow the color code found next to each terminal. Amperage Draw And Belt Tension This unit is equipped with an adjustable motor drive sheave for adjusting the blower wheel speed to the proper loading on different duct systems. It is important that the motor drive pulley is adjusted to correct size to assure maximum air delivery without damage to the motor. Be sure to follow these instructions carefully. • Adjust drive pulley. After the unit is completely installed, adjust the drive pulley to the least diameter and adjust belt tension. See the maintenance section for adjusting belt tension. 4 2 110498-3 Start cooler. Install both inspection panels, start pump, and allow to operate until pads are wet. Check amperage. With pads wet and unit started, check amperage draw with an amperage meter. During automatic operation, the control performs a 90 second water dump cycle every 8 or 12 hours of pump operation. This interval can be toggled between 8 or 12 hours by simultaneously holding the ‘Cool’ and ‘Fan’ buttons for 5 seconds. The selected interval is displayed for a short time. This action also starts a manual dump cycle. Decrease Amperage • Adjust pulley if necessary. If amperage draw is less than motor rating, turn off electrical power and remove inspection panels. Unplug motor inside cooler, this will protect you from someone turning on unit while you are working inside. This should be done for your safety. Adjust pulley to a larger diameter and readjust belt tension, plug motor in, install inspection panels, Fig. 6 and retest amperage draw. Repeat this process until correct amperage draw is attained. Increasing motor pulley diameter increases amperage draw. Decreasing motor pulley diameter decreases amperage draw (see Fig. 6). A\CAUTION: Do not operate cooler with larger amperage draw than specified on motor plate. Thermostat Operation Automatic Operation (Cool Mode) The fan and water pump are controlled automatically to achieve the desired comfort level. This mode is activated by pressing the ‘Cool’ button. A blue LED is illuminated, and for a few seconds the LCD will display the ‘Set’ temperature. Pressing the ‘Cool’ button again deactivates this mode. The Set temperature (the target temperature for control) may be altered by repeatedly pressing or holding the ‘Up’ and ‘Down’ buttons. The LCD will display ‘Set’ rather than ‘Room’ temperature for a short time after pressing the ‘Up’ or ‘Down’ button. On starting, if the pads in the cooler are too dry, the fan may be delayed from starting until the pads have absorbed some water. This is called Pre-wet and lasts for 2 minutes, indicated by a flashing blue LED. Selecting ‘Fan’ and then ‘Cool’ will bypass the pre-wet and cause the fan and pump to start immediately. (If cooling is required). Ventilation Operation (Fan Mode) The fan speed is set by the user, the water pump is turned off. This mode is activated by pressing the ‘Fan’ button. A green LED is illuminated, and the LCD indicates fan speed. Pressing the ‘Fan’ button again deselects this mode. Pressing the ‘Up’ button selects maximum Fan speed, and ‘Hi’ is displayed in the LCD; pressing the ‘Down’ button selects minimum Fan speed, and ‘Lo’ is displayed in the LCD. Time Delay Operation (Timer Mode) Delayed start orfinish in ‘Cool’ or ‘Fan’ mode. The ‘Timer’ button is used to set a delay period of 2, 4 or 8 hours, depending on how many times the button is pressed. If the cooler is oper...

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