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Hoshizaki

“A Superior Degree

of Reliability”

www.hoshizaki.com

Models
Reach-In B-Series

Commercial Series
Refrigerated Kitchen Equipment

Hoshizaki America, Inc.

Number: 73183

Issued: 3-23-2011

Revised: 10-4-2011

SERVICE MANUAL

Содержание AMERICA 73183

Страница 1: ...A Superior Degree of Reliability www hoshizaki com Models Reach In B Series Commercial Series Refrigerated Kitchen Equipment Hoshizaki America Inc Number 73183 Issued 3 23 2011 Revised 10 4 2011 SERVI...

Страница 2: ...n is not covered under warranty Hoshizaki provides this manual primarily to assist qualified service technicians in the service and maintenance of the appliance Should the reader have any questions or...

Страница 3: ...tion 9 A Construction 9 1 One Section 9 2 Two Section 10 3 Three Section 11 B Sequence of Operation 12 1 Sequence Cycles and Shutdown 12 a Refrigerator 12 b Freezer 13 2 Sequence Flow Charts 14 a Refr...

Страница 4: ...rge 40 B Important Notes for Component Replacement 42 C Door Reversal 42 VI Maintenance 43 A Cleaning Instructions 43 1 Exterior 43 2 Cabinet Interior 43 3 Door Gaskets 43 4 Shelves 43 5 Glass Door 43...

Страница 5: ...ance This appliance must be installed in accordance with applicable national state and local codes and regulations Make sure the power switch is in the OFF position before plugging in or unplugging th...

Страница 6: ...less they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety Children should be properly supervised around this appliance Do not climb...

Страница 7: ...115 60 1 16 450 250 1 Section 8 2 Section 17 See the nameplate for electrical and refrigerant data The nameplate is located inside the cabinet We reserve the right to make changes in specifications a...

Страница 8: ...8 08 27 96 FG 652 8 25 7 80 101 6 4 152 4 6 153 28 6 6 02 1 13 Two Section 593 7 23 37 FS HS 651 3 25 64 Three Section 593 7 23 37 579 22 8 Side View Front View Top View Interior View Dimensions Model...

Страница 9: ...Control Box Power Switch Door Lock Models CR1B FG FS HS and CF1B FS HS Model Shown CR1B FS Light Compressor Condensate Pump Reservoir Float Switch for Condensate Pump Power Cord Door Switch Reservoir...

Страница 10: ...Front Panel Control Module Display Module Power Switch Door Lock Light Reservoir Float Switch Reservoir Cover Door Door Gasket Control Box Door Switch Door Switch Door Latch Evaporator Cabinet Thermis...

Страница 11: ...hermistor Defrost Thermistor Evaporator Fan Shroud Thermostatic Expansion Valve Condensate Pump Display Module Door Lock Thermostatic Expansion Valve Condenser Condenser Condenser Fan Motor Receptacle...

Страница 12: ...ng of the cabinet via CTh CTh cools to 3 F 1 7 C below setpoint EvapFM and MH continue Comp and ConFM de energize 3 Cool Down Restart CTh warms to 3 F 1 7 C above setpoint EvapFM and MH continue Comp...

Страница 13: ...Comp ConFM and EvapFM de energize c Termination 1 After Temperature Time Initiation DTh warms to 59 F 15 C 3 minute Comp delay timer starts 8 minute EvapFM delay timer starts and 13 minute temperature...

Страница 14: ...ConFM de energized 5 Defrost Termination DTh warms to 40 F 4 4 C Note a EvapFM de energizes when door is opened on FS and when upper door is opened on HS b 2 minute minimum Comp on timer starts when...

Страница 15: ...tarts when Comp energizes c 2 minute minimum Comp off timer starts when Comp de energizes d 3 minute Comp delay timer starts when defrost termination temperature is met e 8 minute EvapFM delay timer s...

Страница 16: ...be changed For further details see II C 2 Controls and Adjustments Note When exposed to high temperatures a high temperature alarm Hi may occur at start up To silence the alarm press and release the...

Страница 17: ...justable between 15 F and 12 F 26 C and 11 C Factory default is 4 F 20 C Note Do not adjust the temperature setpoint outside of the factory specified range Adjustment outside of this range may prevent...

Страница 18: ...short out power supply to test for voltage 1 Control Module Layout Freezer Control Module Cabinet Thermistor Defrost Thermistor C1 Compressor red L3 Power Switch black N5 Neutral white To Display Modu...

Страница 19: ...age safeties automatically reset when voltage is corrected ULo Low Voltage Alarm 96VAC 5 or less Hi High Temperature Alarm Note When power is turned on a high temperature alarm can occur Refrigerator...

Страница 20: ...ector is an internal protector On 2 section freezers the compressor protector is an external protector 2 Short Cycle Protection There is a 2 minute minimum off time and on time for the compressor Note...

Страница 21: ...r Thermostatic Expansion Valve Compressor Low Side Access Valve Condensate Pan High Pressure Switch Drier Condenser Fan Condenser Defrost Thermistor Defrost Heater and Defrost Thermostat freezer only...

Страница 22: ...22 B Wiring Diagrams 1 CR1B FG High Pressure Switch Cut out 270 10 PSIG Cut in 190 20 PSIG...

Страница 23: ...23 High Pressure Switch Cut out 270 10 PSIG Cut in 190 20 PSIG 2 CR1B FS HS CR3B FS HS...

Страница 24: ...24 3 CR2B FG High Pressure Switch Cut out 270 10 PSIG Cut in 190 20 PSIG...

Страница 25: ...25 4 CR2B FS HS CR3B FS HS High Pressure Switch Cut out 270 10 PSIG Cut in 190 20 PSIG...

Страница 26: ...26 5 CF1B FS HS CF3B FS HS Defrost Thermostat Cut out 120 F 5 F 49 C 3 C Cut in 70 F 5 F 21 C 3 C High Pressure Switch Cut out 490 10 PSIG Cut in 370 20 PSIG A 5 G and later...

Страница 27: ...27 6 CF2B FS HS CF3B FS HS Defrost Thermostat Cut out 120 F 5 F 49 C 3 C Cut in 70 F 5 F 21 C 3 C High Pressure Switch Cut out 490 10 PSIG Cut in 370 20 PSIG A 5 G and later...

Страница 28: ...28 7 CR3B FS HS Receptacle Box Connection 8 CF3B FS HS Receptacle Box Connection Note Only the top receptacles have power Note Only the top receptacles have power...

Страница 29: ...tral connection when checking high voltages If the display module is in alarm see II D 2 Alarm Safeties For further details see IV B Control Module Check For factory default settings see II C 2 a Defa...

Страница 30: ...If 115VAC is not present between CR 5 and CR 6 check continuity of HPS If open allow time for HPS to reset If HPS does not reset replace HPS and diagnose reason for HPS activation See IV A 1 7 c HPS A...

Страница 31: ...not check for 115VAC between CM C1 and CM N5 If 115VAC is not present replace CM If 115VAC is present between CM C1 and CM N5 check for 115VAC on CR coil terminals 5 and 6 If 115VAC is not present be...

Страница 32: ...n CM C1 and CM N5 check CTh status See IV C Thermistor Check If CTh ohm reading is in proper range replace CM If 115VAC is present between CM C1 and CM N5 check for 115VAC on CR coil terminals 5 and 6...

Страница 33: ...apFM delay timer terminates and EvapFM energizes 5 minutes after that 13 minute temperature display delay timer terminates and cabinet temperature appears on DM Defrost Diagnosis Defrost Initiation Ha...

Страница 34: ...he door s are closed and DS contacts are closed Check EvapFM blades for binding Next check for 115VAC at DSR terminals 7 and 8 If 115VAC is not present check DS continuity If 115VAC is present check D...

Страница 35: ...t check for 115VAC between CM terminals C1 and N5 If 115VAC is not present replace CM Defrost 7 Press and hold the lower button until dEF appears on DM 8 Confirm that the Comp ConFM and EvapFM freezer...

Страница 36: ...ssor 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 appliance 2 Remov...

Страница 37: ...eck the control module using the steps in IV B Control Module Check 1 Appliance Not Cooling Appliance Not Cooling Possible Cause 1 Power Supply a Unplugged off blown fuse or tripped or defective circu...

Страница 38: ...gerant lines restricted 2 Evaporator is Frozen Up Evaporator is Frozen Up Possible Cause 1 Evaporator a Dirty 2 Evaporator Fan a Not operating 3 Defrost Thermistor a Out of position or defective 4 Con...

Страница 39: ...tor and then raise the pressure using nitrogen gas 140 PSIG DO NOT use R 134a or R 404A as a mixture with pressurized air for leak testing NOTICE Do not leave the system open for longer than 15 minute...

Страница 40: ...stall the new drier with the arrow on the drier in the direction of the refrigerant flow When brazing protect the drier by using a wet cloth to prevent the drier from overheating Do not allow the drie...

Страница 41: ...g an R 134a system Place the service cylinder on the scales if the service cylinder is not equipped with a dip tube invert the service cylinder then place it on the scales Open the high side valve on...

Страница 42: ...shes appear on the display module when energized the compressor and display module are off To turn the compressor and display module on press and hold the upper and lower buttons until the temperature...

Страница 43: ...hol petroleum soap powder polishing powder alkaline cleaner acid scouring pad and especially those strong cleaners for use on a ventilating fan or a cooking range Also to prevent corrosion do not use...

Страница 44: ...ting down the appliance for more than one week move the power switch to the OFF position and unplug the appliance Do not plug in unplug the appliance to start stop operation Make sure the power switch...

Страница 45: ...children getting trapped Leave the shelves in place so that children may not easily climb inside This appliance contains refrigerant and must be disposed of in accordance with applicable national stat...

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