Assessments - 4, GPA: 4
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4). Screw on nut and draw up tight against bottom of pan. Insert overflow pipe in nipple to retain water. Overflow pipe may be removed to drain pan when necessary. A garden hose may be screwed on the drain nipple to drain water away from your unit. - Overflow Pipe ')— Nipple ^— Rubber Washer Bottom Pan Nut Fig. 4 Pump. The pump must be secured to prevent it form tipping over. Secure the pump to the pump mounting bracket (item 16 in parts drawing). Remove a nut located under the head of the pump, place the pump bolt though the hole in the mounting bracket, and secure with the nut that was previously removed. Plug pump into receptacles. Retain pump cords to internal braces to prevent cords from dropping into water reservoirs or contacting moving components. Supply water. Run a water supply line to the unit. Each wet section requires a 3/8 inch tube connection to the float valve. The double inlet units will have two float valves, one for each wet section. Note: Do not use water supplied from a water softener. Float valve. Refer to Fig. 5 to install float. Remove items 1, 2, 3, and 4. Insert float body (5) through hole in splash plate (9) and back post panel as shown. Install washer (1) and nut (2). Tighten to 110526 keep float from turning. Place nut (4) and ferrule (3) on water supply line. Connect to float fitting and tighten until water tight. Turn on water supply and check for leaks. Loosen screw (6) and adjust rod (7) until water level is within 1” of top of reservoir. Tighten screw (6). Slide float shield (8) over float body (5) until it snaps into place. • Bleed-Off. Use of the bleed-off kit is recommended to prevent scale build up by bleeding off small amounts of circulating water during operation. Do not add any type of water treatment chemicals to the water since they may damage the evaporative media. Pulley And Belt Adjustments • Pulley adjustment. With an ammeter, check the motor amperage. Adjust the pulley until the amperage draw on the motor is just below that specified on the motor nameplate. To adjust the pulley, loosen the adjustment set screw and rotate the sheave. Tighten the set screw so that it is over a flat area, otherwise thread damage will occur. To increase amperage draw, increase pulley diameter. To decrease amperage draw, decrease pulley diameter (see Fig. 6). Recheck belt alignment. ACAUTION: Always check the amperage of the motor after adjusting pulley to be certain it does not exceed the amperage stamped on the motor specification plate. Improper pulley adjustment will overload and burn out the motor. 3 Lb. Belt tension. Loosen the motor mount bolts and slide the motor back until the belt is properly tensioned. A 3 lb. force should deflect the belt 3/4 inches (see Fig. 7). Retighten motor mount bolts. Do not adjust pulley to tighten belt. Maintenance 3/4 Inches Fig. 7 AWARNING: Before doing any maintenance be sure to disconnect from power source. This is for your safety. Spring Start-Up • ...
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