Hoshizaki HR24A service manual

Page 20

Defrost (Do Not Adjust)

Service Menu

Min.

Max.

Unit

Factory Setting

Description

 

 

 

 

 

 

d0

0

99

hrs.

6

Defrost interval:

 

 

 

 

 

0=no defrost

d1

0

2

---

2

Defrost type. Do not adjust.

 

 

 

 

 

0=electric heater

 

 

 

 

 

1=hot gas

 

 

 

 

 

2=off cycle (evaporator fan motor)

 

 

 

 

 

 

d2

-99

99

°C/°F

N/A

Limit for defrost if P3 = 1 or 2.

 

 

 

 

 

 

d3

0

99

min.

30

Defrost duration.

 

 

 

 

 

 

d4

0

1

---

0

Defrost on startup. Do not adjust.

 

 

 

 

 

0=no, 1=yes

d5

0

99

min.

0

Minimum time between startup and

 

 

 

 

 

defrost. Do not adjust.

d6

0

1

---

0

Temperature display

 

 

 

 

 

during defrost. Do not adjust.

 

 

 

 

 

0=cabinet temperature

 

 

 

 

 

1=cabinet temperature or setpoint

 

 

 

 

 

+ differential (4°F). Based on

 

 

 

 

 

cabinet temperature at defrost

 

 

 

 

 

initiation.

 

 

 

 

 

 

d7

0

15

min.

0

Drip time. Do not adjust.

 

 

 

 

 

 

d8

0

3

---

0

Defrost initiation. Do not adjust.

 

 

 

 

 

0=d0 defrost timer is cumulative

 

 

 

 

 

power on time.

 

 

 

 

 

1=d0 defrost timer is cumulative

 

 

 

 

 

compressor run time.

 

 

 

 

 

2=defrost starts when

 

 

 

 

 

evaporator temperature < d9

 

 

 

 

 

for time d0.

 

 

 

 

 

3=based on evaporator temperature

 

 

 

 

 

when evaporator thermistor is

 

 

 

 

 

present.

 

 

 

 

 

 

d9

-99

99

°C/°F

32

Do not adjust.

d10

0

99

°C/°F

27

Do not adjust.

 

 

 

 

 

 

d11

0

1

---

0

Do not adjust.

 

 

 

 

 

 

d12

0

99

min.

30

Do not adjust.

 

 

 

 

 

 

d13

1

240

min.

1

Do not adjust.

d14

0

240

min.

30

Do not adjust.

 

 

 

 

 

 

d15

0

99

min.

0

Minimum compressor run time before

 

 

 

 

 

defrost if d1=1. Do not adjust.

 

 

 

 

 

 

20

Image 20
Contents HR24A Hoshizaki AMERICA, INC Contents Page Important Safety Information Page Storage Capacity Specifications Electrical and Refrigerant DataStorage Capacity and Dimensions 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 Defrost Control Board CheckStartup and Cool Down Thermistor Check Diagnostic Chart Appliance Not CoolingEvaporator is Frozen Up Defrost Fails to Start or TerminateRefrigerant Recovery Replacement of ComponentsService for Refrigerant Lines Brazing Evacuation and Recharge R-134aImportant Notes for Component Replacement Door Reversal Cleaning MaintenanceVII. Preparing the Appliance for Periods of Non-Use VIII. Disposal
Related manuals
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.