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30 wide 1 and 2 evaporator compact cubers technical training

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presentation topics · · · · · · models covered components installation electrical sequence service diagnosis refrigeration system

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cm3 cm cubed · compact modular cubers overflow drain type ­ ­ ­ ­ cme256 cme506 cme656 cme806 · similar technology used in sce275 · purge valve drains used in ­ cme306 cme456 cme686 cme810 cme1056 cme1356 cme1656 cme1856 cme2006

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cabinet · 30 wide cm3 models ­ fit many bins and dispensers · htb250 htb350 htb555 · id200 id250 hd356 30 wide ­ front removable top and side panels · snap screw front panel attachment · no screws in back or top

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front panel · removal of front panel provides access to ­ controller ­ water valve ­ water pump · evaporator cover behind it provides a ­ thermal barrier ­ water barrier

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front view disposable air filter one on each side hi voltage box autoiq controller water level sensor water compartment

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hi voltage box ptcr a c series single phase d series higher use ptcr for single phase

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autoiq control system · · · · · · all electronic microprocessor controlled measures water level for cube size no altitude or ambient adjustments needed freeze up protection electric-eye ice sensors bin control new controller in 2002 ­ blue box but same operation as prior black controller ­ last 2 errors can be recalled ­ displays eeprom code at power up ­ universal service controller fits all cm3

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control system · controller collects stores and uses data to determine ­ ­ ­ ­ ­ ­ ­ pump and fan off time freeze times end of harvest time reservoir flush time bin full water or refrigeration errors water level/cube size

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control system water temperature sensor autoiq controller right bin control ice sensor discharge temperature sensor left bin control ice sensor water level sensor

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autoiq controller · adaptive harvest ­ optimizes harvest time · autorestart ­ after power interruptions ­ after water interruptions ­ after long harvest or freeze · antislush ­ first three cycles after restart · indicator lights ­ easier diagnostics

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autoiq controller low voltage in/out water valve hot gas valve contactor coil stacking/thermostat push buttons not used thermistors bin control/ice sensor bin control/ice sensor reservoir water level sensor factory use indicator lights bin full freeze harvest clean off water refrigeration diagnostic indicators hi voltage water pump fan motor

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controls water system · water enters in harvest thru solenoid valve ­ gravity drain overflow · uses a standpipe in the reservoir to control maximum water height · control system calculates each cycle s water flow rate and adjusts for it ­ benefit overflows the same amount of water under different water flow conditions which provides an assured amount of rinse water · water overflow amount is manually adjustable for variations in water quality

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controls water system · inlet water solenoid valve · these four models use the low flow rate valve ­ low flow rate valve used on 7 different modular models and the sce275 ­ high flow rate valve used on the 5 other modular models · all are 24 volt · large screen for dirt resistance benefit only two valves to stock for entire cm3 line

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water system · ice water separated by the cube deflector ­ located under the evaporators cube deflector

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