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Instruções de Operação Cornelius, Modelo 1000 - Series

Fabricante : Cornelius
Arquivo Tamanho: 286.38 kb
Arquivo Nome : 834a3bec-b88e-4c51-9b7c-fda1ca39afdb.pdf
Língua de Ensino: en
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NOTE: Cold water will absorb heat faster than warm water. The water flow will therefore automatically increase as inlet temperature increases. SIGHT GLASS THERMOSTATIC EXPANSION VALVE FIGURE 12. EXPANSION VALVE FIGURE 13. ADJUSTMENT SCREW © 2004-2005, IMI Cornelius Inc. - 13 -Publication Number: 630460174SER Continuous Flow Icemaker Service Manual CONDENSER MODULATING VALVE REMOVAL 1. Disconnect power to unit, then shut off water supply to condenser and evacuate refrigerant from system. 2. Remove inlet water line from Condenser Modulating Valve. Also remove tube from high side refrigerant line. 3. Remove Condenser Modulating Valve and bracket from unit. 4. Remove valve from bracket. 5. Replace Condenser Modulating Valve by reversing Steps 2 through 4. Then pull system into vacuum. 6. Charge unit with proper amount of refrigeration. 7. Turn power and water on to unit. 8. With unit running, adjust modulating valve to proper setting. 9. Go through a complete system check. GEARMOTOR OVERLOAD TRIPPED Check water level control and evaporator water tube for line build-up restrictions. Clear ice from evaporator and auger before resetting overload. CLEAN CAUTION See Instructions. Overload hot try again. YESNO Reset overload. Resets but motor does not run. Will not Reset. Icemaker runs. IMPORTANT Will not reset. Replace overload. Resets but motor does not run. Check gearmotor circuits. Short run. Trips again in 2 minutes. Check gearmotor circuits. Icemaker runs when reset but problem has not been found. Continue checking for overload as follows to guard against future problems. OVERLOAD GUIDE ELECTRICAL: High or low voltage. Weak power lines can cause overloads on icemakers restarts. High running current (2.4amps or above). Check motor circuits and start relay. Auger delay failed. ICEMAKER Mechanical parts worn. Scored evaporator or auger. Worn thrust bearing. Icemaker not turning off. Failed ice level control. Over compression. Low water inlet temperature. Restrictions in water line from reservoir. REFRIGERANT Contaminated charge or bad compressor. Low charge or gas leak. Low suction pressure. Improper expansion valve. Sensing bulb location or insulation and/or defective expansion valve. Publication Number: 630460174SER - 14 - © 2004-2005, IMI Cornelius Inc. Continuous Flow Icemaker Service Manual MOTOR CHECK The resistance readings on the winding will be between 5 to 25 ohms. A meter capable of these low readings must be used. The start relay cover must be removed. If no continuity on start or run winding test, replace gearmotor. If continuity on grounded motor test, replace gearmotor. START RELAY 1. Check between “2” and “4” on relay (with relay unplugged). If there is continuity replace the relay, as the relay contacts should be open. 2. Check between “3” and “4” on relay, if no continuity replace the relay. FIGURE 14. GEARMOTOR ASSEMBLY TO REPLACE GEARMOTOR ASSEMBLY 1. Disconnect the icemaker from the electrical power source. 2. Disconnect the transmission cable from the electrical box. 3. Remove the 4 hex head bolts securing the evaporator to the top of the transmission. 4. Remove the 4 bolt’s holding the transmission and bracket to frame base, while supporting the weight of the evaporator. Remove the transmission from the unit. 5. When replacing the transmission, it may be necessary to rotate the auger back and forth to align the motor shaft and auger. AUGER NUT BEARING NYLON GROOVE EXTRUDING HEAD BEARING DELRIN ANTI–ROTATION RIB – 3 PLACES AUGER “D” DRIVE FIGURE 15. AUGER AND EXTRUDING HEAD REMOVAL © 2004-2005, IMI Cornelius Inc. - 15 - Publication Number: 630460174SER Continuous Flow Icemaker Service Manual INSTALLATION AND SHAFT SEAL REPLACEMENT 500 1. Place shaft seal locator seat over gear motor output shaft, embossed side down, and push down until shaft seal seat rests flush on top of gear motor. 2. Place rubber coated ceramic seal E–RING (important: ceramic face up) over output WASHER, PLAIN FLAT shaft and push down until seal rests on top of the shaft seal seat. (Lubricate rubber on SHAFT SEAL ceramic seal with rubber lubricant.) LOCATOR SEAL 3. Place shaft seal with carbon face down (spring up) over output shaft and push (gently) downward until seal rests on ceramic face of the output shaft seal. 4. Place flat washer over output shaft and let GEARMOTOR rest on the output shaft seal. Push down on the washer compressing the spring on the output shaft seal. While holding the seals (down) in place slide the E–ring into the groove on the output shaft. AUGER AND EXTRUDING HEAD REMOVAL 1. Disconnect unit from power supply. 2. Remove storage container cover and put aside. 3. Turn off water supply to icemaker. 4. After ice has melted from head take hold of the auger nut and lift straight up to disengage from icemaker. 5. When replacing the auger assembly, make certain that both the auger engages the output shaft drive and the extruding head ribs engage the evaporator tube. FIGURE 16. SHAFT SEAL 500 Publication...

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