Hoshizaki 73183 service manual Thermistor Check

Page 34

"IV.A.2.9) Defrost" and "IV.C. Thermistor Check." If components fail to start, control module must be replaced.

C. Thermistor Check

In the event the cabinet thermistor reading is out of range (E1 alarm), the compressor operates on a fixed time basis of 5-minutes on and 5-minutes off.

In the event the refrigerator defrost thermistor reading is out of range (E2 alarm), defrost initiation occurs every 4-hours of cumulative compressor run time and terminates on 20-minute minimum defrost timer.

In the event the freezer defrost thermistor reading is out of range (E2 alarm), defrost initiation occurs every 4-hours of cumulative compressor run time and terminates based on cabinet thermistor temperature.

To check thermistor resistance, follow the steps below.

1)Move the power switch to the "OFF" position, then unplug the unit.

2)Remove the control box cover.

3)Disconnect and remove the thermistor in question.

4)Immerse the thermistor sensor portion in a glass containing ice and water for 2 to 3 minutes.

5)Check the resistance between the wires at the thermistor connector. Normal reading is within 16.0 to 16.7 kΩ. If outside the normal reading, replace the thermistor.

6)Reconnect and replace the thermistor in its correct position. See "V.B. Important Notes for Component Replacement."

7)Plug the unit back in. Move the power switch to the "ON" position.

34

Image 34
Contents Superior Degree Reliability Number Issued Hoshizaki AMERICA, INC Contents Page Indicates important information about the use and care Important Safety InformationSerious injury UnitPage Dimensions Specifications Nameplate RatingsRefrigerated Volume and Shelf Space One Section/Two Section/Three Section Unit mmII. General Information Construction One SectionTwo Section Three Section Sequence of Operation Sequence Cycles and ShutdownFreezer Refrigerator Sequence Flow Chart ChartsFreezer Sequence Flow Chart Display Module Display Module LayoutControls and Adjustments Temperature SetpointRefrigerator Control Module Freezer Control Module Control ModuleControl Module Layout Alarm Safeties Refrigerator & Freezer CabinetThermistors High-Pressure SwitchMullion/Perimeter Heater Compressor External or Internal OverloadIII. Technical Data Refrigeration Circuit Wiring Diagrams CR2B-FS/HS, CR3B-FS/HS CF1B-FS/HS, CF3B-FS/HS CF2B-FS/HS, CF3B-FS/HS Page IV. Service Diagnosis Diagnostic ProcedureRefrigerator Defrost Defrost DiagnosisFreezer Defrost Page Control Module Check Startup/Cool DownThermistor Check Diagnostic Chart Unit Not CoolingEvaporator is Frozen Up Defrost Fails to TerminateService for Refrigerant Lines Replacement of ComponentsRefrigerant Recovery Brazing Evacuation and RechargePage Important Notes for Component Replacement Door Re-HingingCleaning MaintenanceShutdown and Long Storage

73183 specifications

The Hoshizaki 73183 is a state-of-the-art ice machine that has garnered attention in the foodservice industry for its reliability and efficiency. Renowned for its compact design, the model is particularly well-suited for restaurants, bars, and cafes where space is often at a premium. One of the standout features of the Hoshizaki 73183 is its capability to produce high-quality cube ice, essential for various beverages and food presentation.

One of the primary technologies that sets this ice machine apart is the Kold-Draft ice production method. This technology ensures that the ice produced is not only clear and hard but also lasts longer in drinks, preventing dilution. The 73183 model is capable of producing up to 800 pounds of ice in a 24-hour cycle, making it a reliable choice for businesses requiring a high volume of ice throughout the day.

Energy efficiency is another hallmark of the Hoshizaki 73183. The unit operates with a low energy consumption rate, aligning with today’s demand for sustainable ice production solutions. It is equipped with efficient compressor technology, which reduces operational costs without compromising performance. In addition, the machine utilizes an advanced air-cooled condenser system, making it optimal for various ambient conditions while ensuring consistent ice output.

Durability and ease of maintenance also characterize the Hoshizaki 73183. Constructed with stainless steel, the unit is not only aesthetically pleasing but also resistant to corrosion and wear, ensuring longevity in a demanding kitchen environment. Furthermore, the machine features an easy-to-access design that simplifies cleaning and maintenance, promoting optimal hygiene and performance.

The unit also integrates user-friendly digital controls, allowing operators to monitor ice production rates and make adjustments as needed. An intuitive display provides real-time status updates, ensuring that businesses can always meet their ice needs.

In summary, the Hoshizaki 73183 ice machine combines innovative technology with robust design, making it an ideal choice for businesses seeking a reliable, efficient, and high-performing ice production solution. Its remarkable features and characteristics firmly establish it as a leading option in the competitive landscape of commercial ice machines.