Hoshizaki HR24A service manual Service Menu Chart

Page 19

b) Service Menu Chart

Setpoint

Service Menu

Min.

Max.

Unit

Factory Setting

Description

 

 

 

 

 

 

SP

See r1

See r2

°C/°F

39°F

Cabinet setpoint.

 

 

 

 

 

(compressor off temperature).

 

 

 

 

 

(see r0 for compressor on temperature).

 

 

 

 

 

 

Thermistor Input (Do Not Adjust)

Service Menu

Min.

Max.

Unit

Factory Setting

Description

 

 

 

 

 

 

CA1

-25

25

°C/°F

0

Cabinet thermistor temperature offset.

 

 

 

 

 

 

CA2

-25

25

°C/°F

0

Evaporator thermistor temperature

 

 

 

 

 

offset.

 

 

 

 

 

 

P1

0

1

---

0

Decimal point for °C display: 0=no,

 

 

 

 

 

1=yes.

P2

0

1

---

1

Temperature display scale: 0=°C, 1=°F

 

 

 

 

 

 

P3

0

2

---

0

Evaporator thermistor:

 

 

 

 

 

0=not connected

 

 

 

 

 

1=defrost/evaporator fan

 

 

 

 

 

2=defrost

 

 

 

 

 

 

P8

0

250

ds

5

Temperature display delay.

 

 

 

 

 

 

Operation (Do Not Adjust)

Service Menu

Min.

Max.

Unit

Factory Setting

Description

r0

0

15

°C/°F

4°F

Temperature differential above

 

 

 

 

 

setpoint for the compressor to

 

 

 

 

 

turn on.

 

 

 

 

 

 

r1

-99

r2

°C/°F

34°F

Minimum cabinet setpoint.

 

 

 

 

 

 

r2

r1

99

°C/°F

52°F

Maximum cabinet setpoint.

 

 

 

 

 

 

r3

0

1

---

0

Locked setpoint. 0=no, 1=yes

r4

0

99

°C/°F

0

Energy saving and overcooling

 

 

 

 

 

Do not adjust.

r5

0

99

°C/°F

0

 

 

 

 

 

 

 

r6

0

240

min.

30

 

 

 

 

 

 

 

Compressor Protection (Do Not Adjust)

Service Menu

Min.

Max.

Unit

Factory Setting

Description

 

 

 

 

 

 

C0

0

240

min.

2

Compressor delay at startup

 

 

 

 

 

and after power interruption.

 

 

 

 

 

 

C1

0

240

min.

5

Minimum time between

 

 

 

 

 

compressor starts.

 

 

 

 

 

 

C2

0

240

min.

3

Minimum compressor off time.

 

 

 

 

 

 

C3

0

240

sec.

180

Minimum compressor run time.

C4

0

240

min.

10

Compressor off time with

 

 

 

 

 

defective cabinet thermistor.

 

 

 

 

 

 

C5

0

240

min.

10

Compressor on time with

 

 

 

 

 

defective cabinet thermistor.

 

 

 

 

 

 

19

Image 19
Contents HR24A Hoshizaki AMERICA, INC Contents Page Important Safety Information Page Storage Capacity and Dimensions Specifications Electrical and Refrigerant DataStorage Capacity Unit mm DimensionsHR24A II. General Information ConstructionSequence Cycles and Shutdown Sequence of OperationEvapFM and Defrost icons are on Cool Down RestartSequence Flow Chart HR24A Sequence Flow ChartControl Board and Display Module Display Module Layout Control Board LayoutDefault Settings Cabinet TemperatureControl Panel Lockout Display Module IconsHigh and Low Temperature Alarm Values AH or AL Alarm SafetiesService Menu Access Service MenuService Menu Chart Page AL alarm sensor. Do not adjust Fan operation with door closed 247 Address not used Baud Rate not used Parity not used III. Technical Data Refrigeration Circuit Wiring Diagram Diagnostic Procedure IV. Service DiagnosisPage Energy Saving Mode Startup and Cool Down Control Board CheckDefrost Thermistor Check Appliance Not Cooling Diagnostic ChartDefrost Fails to Start or Terminate Evaporator is Frozen UpService for Refrigerant Lines Replacement of ComponentsRefrigerant Recovery Evacuation and Recharge R-134a BrazingImportant Notes for Component Replacement Door Reversal Maintenance CleaningVII. Preparing the Appliance for Periods of Non-Use VIII. Disposal
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HR24A specifications

The Hoshizaki HR24A is an advanced refrigeration unit designed to meet the cooling needs of commercial kitchens and food storage facilities. Known for its reliability and efficiency, this model showcases several innovative features that set it apart in the competitive market of commercial refrigeration.

One of the standout characteristics of the Hoshizaki HR24A is its robust construction. Built with a durable stainless steel exterior, it not only adds aesthetic appeal but also ensures longevity and resistance to corrosion and wear. The interior is designed for easy cleaning, with rounded corners that minimize the buildup of grime and food particles.

The HR24A offers an impressive storage capacity, making it ideal for establishments with high-volume food storage requirements. With a temperature range typically between 33°F and 38°F, the unit maintains optimal conditions for preserving perishables such as meats, dairy, and vegetables. This precision in temperature control is essential for maintaining food safety and quality.

One of the key technologies integrated into the Hoshizaki HR24A is its advanced refrigeration system. Utilizing a highly efficient compressor and a fan-assisted cooling feature, the unit ensures rapid temperature recovery even in busy kitchen environments. This is crucial during peak hours when door openings are frequent, as it helps maintain consistent internal temperatures.

Energy efficiency is another hallmark of the HR24A. It is designed with environmentally friendly refrigerants and complies with Energy Star standards, which can lead to significant cost savings over time through reduced electricity consumption. This commitment to environmental responsibility makes it an attractive option for eco-conscious businesses.

In terms of user-friendliness, the HR24A is equipped with digital controls and adjustable shelving, allowing for customized organization according to specific storage needs. The LED lighting inside the unit provides excellent visibility, making it easy to locate items quickly, which is particularly beneficial during busy service periods.

Overall, the Hoshizaki HR24A combines durability, efficiency, and functionality, making it an exceptional choice for anyone seeking a reliable refrigeration solution in a commercial kitchen setting. Whether used in restaurants, hotels, or catering businesses, its impressive features and state-of-the-art technology continue to meet the demanding requirements of the foodservice industry.