Hoshizaki HR24A service manual Fan operation with door closed

Page 22

Evaporator Fan Motor (Do Not Adjust)

Service Menu

Min.

Max.

Unit

Factory Setting

Description

 

 

 

 

 

 

F0

0

4

---

1

Fan operation with door closed.

 

 

 

 

 

Do not adjust.

 

 

 

 

 

0=off

 

 

 

 

 

1=on: see also F13, F14, and L10

 

 

 

 

 

2=parallel with compressor

 

 

 

 

 

3= dependent on F1

 

 

 

 

 

4=disabled when compressor is off,

 

 

 

 

 

dependent on F1 when

 

 

 

 

 

compressor is on.

 

 

 

 

 

 

F1

-99

99

°C/°F

30

Fan off temperature when F0 set to

 

 

 

 

 

3 or 4. Do not adjust.

 

 

 

 

 

 

F2

0

2

---

1

Fan operation during defrost:

 

 

 

 

 

Do not adjust.

 

 

 

 

 

0=disabled

 

 

 

 

 

1=enabled

 

 

 

 

 

2=dependent on F0

F3

0

15

 

2

Maximum fan off time when defrost

 

 

 

 

 

thermistor used.

 

 

 

 

 

 

F7

-99

99

°C/°F

0

Fan on temperature when defrost

 

 

 

 

 

thermistor used.

 

 

 

 

 

 

F8

0.1

15

°C/°F

4

F1 differential.

 

 

 

 

 

 

F9

0

240

sec.

0

Energy saving evaporator fan motor

 

 

 

 

 

delay after compressor shuts off.

F13

0

240

min.

5

Energy saving evaporator fan motor

 

 

 

 

 

off time.

 

 

 

 

 

 

F14

0

240

min.

1

Energy saving evaporator fan motor

 

 

 

 

 

on time.

 

 

 

 

 

 

Door Switch and Door Alarm (Do Not Adjust)

Service Menu

Min.

Max.

Unit

Factory Setting

Description

 

 

 

 

 

 

L0

0

5

---

2

Door switch function.

 

 

 

 

 

1=compressor and evaporator

 

 

 

 

 

fan motor de-energized

 

 

 

 

 

2=evaporator fan motor

 

 

 

 

 

deenergized

 

 

 

 

 

3-5=reserved

L1

0

1

---

0

Door switch operation.

 

 

 

 

 

0=normally open

 

 

 

 

 

1=normally closed

 

 

 

 

 

 

L2

-1

120

min.

10

Door alarm time delay.

 

 

 

 

 

-1=deactivated

 

 

 

 

 

 

L3

-1

120

min.

-1

Evaporator fan motor off time

 

 

 

 

 

when door is open.

 

 

 

 

 

-1=until door switch engaged

 

 

 

 

 

 

L4

0

1

---

0

Save door alarm.

 

 

 

 

 

0=no

 

 

 

 

 

1=yes

 

 

 

 

 

 

L10

0

999

min.

20

Energy saving activation.

 

 

 

 

 

After cabinet temperature

 

 

 

 

 

is reached and door switch

 

 

 

 

 

remains closed.

22

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Contents HR24A Hoshizaki AMERICA, INC Contents Page Important Safety Information Page Storage Capacity and Dimensions Specifications Electrical and Refrigerant DataStorage Capacity Dimensions Unit mmII. General Information Construction HR24ASequence of Operation Sequence Cycles and ShutdownCool Down Restart EvapFM and Defrost icons are onHR24A Sequence Flow Chart Sequence Flow ChartControl Board and Display Module Control Board Layout Display Module LayoutCabinet Temperature Default SettingsDisplay Module Icons Control Panel LockoutAlarm Safeties High and Low Temperature Alarm Values AH or ALService Menu Service Menu AccessService 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 IV. Service Diagnosis Diagnostic ProcedurePage Energy Saving Mode Startup and Cool Down Control Board CheckDefrost Thermistor Check Diagnostic Chart Appliance Not CoolingEvaporator is Frozen Up Defrost Fails to Start or TerminateService for Refrigerant Lines Replacement of ComponentsRefrigerant Recovery Brazing Evacuation and Recharge R-134aImportant Notes for Component Replacement Door Reversal Cleaning MaintenanceVII. Preparing the Appliance for Periods of Non-Use VIII. Disposal
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Manual 20 pages 19.87 Kb

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.