Hoshizaki DCM-500BWH-OS service manual Startup

Page 13

DCM-500BAH(-OS), DCM-500BWH(-OS) Sequence Flow Chart and Component Operation

4. 12 Hour Drain Cycle

DV opens for 20 minutes every 12 hours

See "3. 12 Hour Drain Cycle" below.

1. Startup

Power switch "ON" Control switch in "ICE"

1. Fill Cycle

2.Ice Purge Cycle

60 seconds

3. Freeze Cycle

Refill (90 seconds)

Low Water Safety

If refill > 90 sec. FT, 150 second shutdown sequence begins

150 sec. Shutdown Sequence

90 seconds

 

60 seconds

 

 

 

13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WV on

 

 

 

LF/S closed

Comp on

UF/S open

LF/S closed

UF/S open

Comp off

GM off

 

 

 

 

UF/S open

 

 

 

 

UF/S closed (WV off)

FMS on

LF/S open (WV on)

UF/S closed (WV off)

FT exceeded

FMS off

GMPR off

 

 

 

 

 

 

 

WCR on

WCR continues

WCR off

WCR on

Comp continues

WV continues

WV continues until

 

 

 

 

 

 

 

 

 

 

 

 

WV off

GM continues

FT started (90 sec.)

FT off (90 sec.)

FMS continues

GM continues

UF/S closes

 

 

 

 

 

 

GM on

GMPR continues WV on

WV off

GM continues

GMPR continues

 

 

 

 

 

 

 

 

 

GMPR on

 

 

Comp continues

Comp continues

GMPR continues

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FMS continues

FMS continues

WV continues

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GM continues

GM continues

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GMPR continues

GMPR continues

 

 

 

 

 

 

 

 

2.Shutdown & Restart

3.12 Hour Drain Cycle Shutdown & Restart

 

 

1. Bin Full

 

 

2. Ice Purge Cycle

 

 

 

150

 

 

 

 

 

 

 

 

seconds

 

 

 

 

 

 

 

 

 

 

 

 

 

 

90 seconds

 

60 seconds

 

 

 

 

 

 

 

 

 

 

 

 

 

1. Drain Cycle initiates

 

 

 

2. Ice Purge Cycle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. Icemaker is Off

 

4. Ice Level Lowered

 

 

 

 

 

See "1. Fill Cycle" above

 

 

 

 

 

3. Drain Cycle

4. 12 hour DC - Restart

DV on for 20 minutes

See "1. Fill Cycle" above

Legend:

BC - bin control Comp - compressor DC - drain cycle DT - drain timer DV - drain valve

FMS - self-contained fan motor

BC open or DC starts

Comp off

GM off

BC closed

Comp continues

FMS off

GMPR off

or

FMS continues

GM continues

DV on (DC only)

20 Min. DT off (DC only)

GM continues

GMPR continues

 

DV off (DC only)

GMPR continues

 

 

12 hour DT reset (DC only)

Components Energized when the Control Switch is in the "DRAIN" Position

The "DRAIN" position on the control switch is used when cleaning and sanitizing the unit. This allows cleaner and sanitizer to drain from the reservoir and evaporator assembly. When switching to the "DRAIN" position during the freeze cycle, the drain valve does not energize until the 150 second shutdown sequence terminates (2. Shutdown & Restart).

Note: To bypass the 150 second shutdown sequence, move the power switch to the "OFF" position, place the control switch in the "DRAIN" position, then move the power switch back to the "ON" position.

FT - fill timer (low water safety) GM - gear motor

GMPR - gear motor protect relay LF/S - lower float switch

UF/S - upper float switch WCR - water control relay WV - inlet water valve

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Contents DCM-500BAH DCM-500BAH-OS DCM-500BWH DCM-500BWH-OS Hoshizaki AMERICA, INC Contents Page DCM-500BAH Specifications IcemakerWater TEMP. F DCM-500BAH-OSWater TEMP. F DCM-500BWHPotable Water Water Cooled Condenser DCM-500BWH-OSII. General Information Construction DCM-500BWH-OS DCM-500BAH-OS, DCM-500BWH-OS Ice Making UnitSequence of Operation Startup Control Board Control Board Control Board Layout DCM-500BAH, DCM-500BWHPart Number 2A2649-01 LED Lights FeaturesControl Board Check Procedure Controls and Adjustments Portion ControlPower Supply Ice Making ComponentsDispensing Components DCM-500BAH, DCM-500BWH Float Switch DCM-500BAH-OS DCM-500BWH-OS Wire Color Code Wiring DiagramsDCM-500BAH-OS, DCM-500BWH-OS DCM-500BWH-OS Sequence of Electrical Circuit Ice MakingIce Purge Cycle Freeze Cycle Hour Drain Cycle / Drain Switch Shutdown Low Water Safety High Pressure Switch Continuous Dispense Sequence of Electrical Circuit DispensingPortion Dispense ICE Production Performance DataTotal IV. Service Diagnosis Diagnostic Procedure Ice Production Check No Ice Production Diagnostic ChartsProblem Possible Cause Remedy Problem Possible Cause Remedy Low Ice Production Other Dispensing Opti Serve OS Sensors 5b. Ice Dispensing Portion Mode 5a. Ice Dispensing Continuous Mode5c. Water Dispensing Service for Refrigerant Lines Removal and Replacement of ComponentsRefrigerant Recovery BrazingEvacuation and Recharge R-404A Removal and Replacement of Compressor Removal and Replacement of Expansion Valve Removal and Replacement of Evaporator Assembly Components Upper Bearing Wear Check Removal and Replacement of Extruding HeadRemoval and Replacement of Evaporator Removal and Replacement of AugerPage 5b. Lower Housing Removal and Replacement of Gear Motor Page Removal and Replacement of Water-Cooled Condenser Page Removal and Replacement of Fan Motor Adjustment of Water Regulating Valve Water-Cooled Model OnlyRemoval and Replacement of Drain Valve Removal and Replacement of Inlet or Dispensing Water ValveDispensing Auger and Agitator Removal and Replacement of Dispensing SystemDispensing or Agitating Motor Page Cleaning and Sanitizing Instructions VI. Cleaning and MaintenanceWater System Cleaning SolutionDispensing Components Sanitizing SolutionBin Control Bracket Snap Pin Frequency Area Task MaintenancePreparing the Icemaker for Long Storage
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Manual 69 pages 4.5 Kb

DCM-500BWH-OS specifications

The Hoshizaki DCM-500BWH-OS, DCM-500BWH, DCM-500BAH, and DCM-500BAH-OS are advanced ice makers designed to meet the needs of busy commercial environments. Hoshizaki is a renowned manufacturer known for producing high-quality refrigeration and foodservice equipment, and their DCM series of ice makers exemplifies this commitment to excellence.

One of the main features of the DCM-500 series is its ability to produce a significant amount of ice, ideally suited for restaurants, bars, and hotels. With a production capacity of up to 500 pounds of nugget ice per day, these units provide an efficient solution for establishments that require a steady supply of ice.

The nugget ice produced by the DCM-500 series is not only soft and chewable but also retains the cold temperature longer, making it perfect for beverages. This appealing characteristic of nugget ice caters to growing customer preferences for premium ice options.

These models also incorporate advanced ice-making technology, ensuring consistent quality. The DCM-500BWH-OS and DCM-500BAH-OS variants feature a self-contained design that makes installation simple and efficient, providing enhanced portability that makes them versatile for different locations within a commercial space.

The DCM-500BWH and DCM-500BAH models are equipped with features like a built-in ice bin that allows for storage convenience. The ice bins have a substantial holding capacity, reducing the frequency of refills and improving overall operation efficiency.

Additionally, the DCM-500 series is designed with energy efficiency in mind. Integrated with modern refrigeration systems, these ice makers comply with energy-saving standards, helping to reduce operational costs. User-friendly controls allow for easy adjustment and monitoring, ensuring that operators can manage their ice production without hassle.

Moreover, the robust construction materials used in these models increase durability, making them suitable for high-demand environments. Features such as easy-to-clean surfaces and self-diagnostic systems further optimize maintenance, ensuring prolonged performance without significant downtime.

Overall, the Hoshizaki DCM-500BWH-OS, DCM-500BWH, DCM-500BAH, and DCM-500BAH-OS ice makers are excellent choices for businesses seeking reliable and high-capacity ice production. Their advanced features, energy efficiency, and user-friendly operation make them a valuable addition to any commercial kitchen or bar setup.