Assessments - 4, GPA: 4.8
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Facilidade de uso
Allow the system to sit for approximately 20 minutes. During this period the system pressure should not rise. If the system pressure rises and stabilizes there is moisture in the system and further evacuation is needed. If the pressure continues to rise check the system for leaks. Ambients Minimum Maximum Air temperature1 10.C/50.F 37.8.C/100.F Water temperature2 4.4.C/40.F 32.2.C/90.F 1Ambient air temperature is measured at the air-cooled condenser coil inlet. 2Ambient water temperature is measured in the icemaker float reservoir. 23 Ice capacity test Icemaker production capacity can only be determined by weighing ice produced in a specific time period. 1. Remove top panel and hopper lid of unit. 2. Weigh and record weight of container used to catch ice. 3. Run icemaker for at least 15 minutes. 4. Catch ice for 15 or 20 minutes. 5. Weigh harvested ice and record total weight. 6. Subtract weight of container from total weight. 7. Convert fractions of pounds to decimal equivalents (Ex. 6 lbs 8 oz = 6.5 lbs). 8. Calculate production using following formula: 1440 min. x wt. of ice produced = Production capacity/24 hr. period Total test time in minutes 9. Calculated amount per 24 hours should be checked against rated capacity for same ambient and water temperatures in Ice Production Table (see page 22). Dispenser troubleshooting ! Disconnect power to unit before putting hands or arms in storage area or attempting any repair or service to equipment. Before calling for service: • Check that no ice is in the dispenser bin area • Check that all switches and circuit breakers are on • Check that congealed ice is not causing a jam • Check that all drains are clear Troubleshooting the dispenser – lever models Problem Indicators Corrective action Does not dispense ice. 1. Power switch off or faulty. 2. Faulty dispense switch. 3. Wheel motor malfunction. 4. Storage hopper cover (inside dispenser cabinet) off or ajar. 1. Check switch – turn on or replace if faulty. 2. Replace switch. 3. Check motor and capacitor and replace as required. 4. Secure cover. Dispense wheel rotates continuously. 1. Dispense switch contacts burned shut. 1. Replace dispense switch. Icemaker runs continuously. 1. Faulty or incorrectly positioned bin stat. 1. Check for proper positing – if stat does not open when ice is places on capillary tube, replace stat. Does not dispense water. 1. Faulty water solenoid valve. 2. Faulty dispense switch. 3. Power switch off or faulty. 1. Replace water solenoid valve. 2. Replace dispense switch. 3. Check switch – turn on or replace if faulty. 24 Troubleshooting the dispenser – SensorSAFE models Problem: Does not dispense ice and/or water Action PWR LED statusCLN ICE/WTRSolution Check LEDs on control board. OFF OFF OFFCheck circuit breakers and power switch. Restore power or replace defective switch. ON ON OFFPress clean switch on lower left side of electrical enclosure to return board to normal operation. Place cup under drop zone. ON OFF OFFTroubleshoot appropriate lens/sensor and replace if required (see Lens/Sensor Troubleshooting). ON OFF ON Verify power on appropriate output terminal (WTR or WM) on control board and replace board if required. If board tests okay, troubleshoot appropriate dispenser component. Troubleshooting the dispenser – SensorSAFE models Problem: Dispenses ice and/or water continuously Action PWR LED statusCLN ICE/WTRSolution Check LEDs on control board. ON OFF ONTroubleshoot appropriate lens/sensor and replace if required (see Lens/Sensor Troubleshooting). ON OFF OFF If there is power on any output terminal (WTR or WM) on control board, replace board. Board guide LEDs, when illuminated, indicate the following: PWR (board power), CLN (cleaning, no dispensing cycle), ICE (ice dispensing activated), WTR (water dispensing activated). Terminals: LI (incoming power, hot), L2 (neutral terminals), WTR (power terminal for water solenoid), WM (power terminal for wheelmotor), CLN (terminals for clean cycle switch). Note: SOL terminal not used in 12 series dispensers. Lens/sensor troubleshooting 1. Turn dispenser power switch off and remove slash panel. 2. Disconnect wires from WTR and WM terminals on board. 3. Gently remove sensor/mounting block from splash panel. 4. Inspect lens and sensor, clean if necessary. 5. Restore dispenser power and test sensor by passing hand in front of sensor. 6. If LED on board turns on, sensor is operational. Re-assemble dispenser. 7. If LED does not come on switch sensor leads on board and retest. 8. If opposite Led comes on – replace defective board. 9. If opposite Led does not come on – replace defective sensor. 25 Icemaker troubleshooting chart • Flashing water LED at any time indicates that water signal to board had been lost for more than one second. • Ten-second delay: There is a 10 second delay in reaction to loss of water (WTR) or bin (B-E) signals. If signals are not lost for more than 10 seconds, no reaction will occur. ProblemIndicators/possible cause Cor...