Hoshizaki HNC-120AE-L User manual

NO.NO. 74NL-58774NL-587
ISSUED: DEC. 20, 2001ISSUED: DEC. 20, 2001
REVISED:REVISED:
HOSHIZAKIHOSHIZAKI
COUNTER SHOWCASECOUNTER SHOWCASE
MODELMODEL HNC-120AE-L/RHNC-120AE-L/R
HNC-150AE-L/RHNC-150AE-L/R
HNC-180AE-L/RHNC-180AE-L/R
HNC-210AE-L/RHNC-210AE-L/R
SERVICE MANUALSERVICE MANUAL

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CONTENTSCONTENTS PAGEPAGE
1.SAFETYINSTRUCTIONS1.SAFETYINSTRUCTIONS------------------------------------------------------------------------------------------------------------------------------------------------------11
2. MODEL NAME2. MODEL NAME --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------33
3.OPERATINGINSTRUCTIONS3.OPERATINGINSTRUCTIONS ------------------------------------------------------------------------------------------------------------------------------------------44
4.SPECIFICATIONS4.SPECIFICATIONS ------------------------------------------------------------------------------------------------------------------------------------------------------------------------55
5.DIMENSIONS5.DIMENSIONS ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------66
[a] HNC-120AE-L[a] HNC-120AE-L --------------------------------------------------------------------------------------------------------------------------------------------------------------------------66
[b] HNC-120AE-R[b] HNC-120AE-R--------------------------------------------------------------------------------------------------------------------------------------------------------------------------77
[c] HNC-150AE-L[c] HNC-150AE-L --------------------------------------------------------------------------------------------------------------------------------------------------------------------------88
[d] HNC-150AE-R[d] HNC-150AE-R--------------------------------------------------------------------------------------------------------------------------------------------------------------------------99
[e] HNC-180AE-L[e] HNC-180AE-L ----------------------------------------------------------------------------------------------------------------------------------------------------------------------1010
[f] HNC-180AE-R[f] HNC-180AE-R---------------------------------------------------------------------------------------------------------------------------------------------------------------------- 1111
[g] HNC-210AE-L[g] HNC-210AE-L ----------------------------------------------------------------------------------------------------------------------------------------------------------------------1212
[h]HNC-210AE-R[h]HNC-210AE-R----------------------------------------------------------------------------------------------------------------------------------------------------------------------1313
6. PERFORMANCE DATA6. PERFORMANCE DATA------------------------------------------------------------------------------------------------------------------------------------------------------1414
7.REFRIGERATIONCIRCUIT7.REFRIGERATIONCIRCUIT----------------------------------------------------------------------------------------------------------------------------------------------1515
8.WIRINGDIAGRAM8.WIRINGDIAGRAM--------------------------------------------------------------------------------------------------------------------------------------------------------------------1616
9.CONSTRUCTION9.CONSTRUCTION ----------------------------------------------------------------------------------------------------------------------------------------------------------------------1717
10. REMOVAL AND REPLACEMENT10. REMOVAL AND REPLACEMENT --------------------------------------------------------------------------------------------------------------------------1818
[a] SIDE COVER[a] SIDE COVER------------------------------------------------------------------------------------------------------------------------------------------------------------------------1818
[b] TOP COVER[b] TOP COVER--------------------------------------------------------------------------------------------------------------------------------------------------------------------------1818
[c] COVER - UNIT[c] COVER - UNIT ----------------------------------------------------------------------------------------------------------------------------------------------------------------------1818
[d] FRONT GLASS[d] FRONT GLASS ------------------------------------------------------------------------------------------------------------------------------------------------------------------1818
[e] SIDE FRAME[e] SIDE FRAME ------------------------------------------------------------------------------------------------------------------------------------------------------------------------1919
[f] CENTER FRAME[f] CENTER FRAME--------------------------------------------------------------------------------------------------------------------------------------------------------------1919
[g] HOLDER - EVAPORATOR PIPE[g] HOLDER - EVAPORATOR PIPE ----------------------------------------------------------------------------------------------------------------------1919
[h]CONTROLBOX[h]CONTROLBOX------------------------------------------------------------------------------------------------------------------------------------------------------------------1919
[i] UNIT[i] UNIT ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------2020
11.REFRIGERANTSERVICE INFORMATION11.REFRIGERANTSERVICE INFORMATION------------------------------------------------------------------------------------------------------2121
12. CONSTANT PRESSURE EXPANSION VALVE AND REFRIGERANT CHARGE12. CONSTANT PRESSURE EXPANSION VALVE AND REFRIGERANT CHARGE----2222
[a]SPECIFICATIONS[a]SPECIFICATIONS------------------------------------------------------------------------------------------------------------------------------------------------------------2222
[b]FUNCTION[b]FUNCTION ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------2222
[c]CONSTRUCTION[c]CONSTRUCTION --------------------------------------------------------------------------------------------------------------------------------------------------------------2222
[d] REPLACEMENT[d] REPLACEMENT----------------------------------------------------------------------------------------------------------------------------------------------------------------2323
13. SERVICE DIAGNOSIS13. SERVICE DIAGNOSIS --------------------------------------------------------------------------------------------------------------------------------------------------------2424

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1. SAFETY INSTRUCTIONS1. SAFETY INSTRUCTIONS
Thefollowinginstructionscontainimportantsafetyprecautionsandshouldbestrictlyobserved.Thefollowinginstructionscontainimportantsafetyprecautionsandshouldbestrictlyobserved.
The terms used here are defined as follows:The terms used here are defined as follows:
WARNINGWARNING:: Thereisa possibility ofdeathor serious injury forthe service person anda thirdThereisa possibility ofdeathor serious injury forthe service person anda third
party or the user due to improper service operations or defects in servicedparty or the user due to improper service operations or defects in serviced
products.products.
CAUTIONCAUTION:: Thereisa possibility ofinjuryfor the servicepersonand a thirdparty or theuserThereisa possibility ofinjuryfor the servicepersonand a thirdparty or theuser
or damage to their property* due to improper service operations or defects inor damage to their property* due to improper service operations or defects in
serviced products.serviced products.
* The term “damage to their property” here refers to extensive damage to household effects,* The term “damage to their property” here refers to extensive damage to household effects,
houses and pets.houses and pets.
WARNINGWARNING
1. Always ask the user to keep children away from the work area. They may be injured by1. Always ask the user to keep children away from the work area. They may be injured by
tools or disassembled products.tools or disassembled products.
2. When there is no need to energize the unit during disassembly or cleaning, be sure to2. When there is no need to energize the unit during disassembly or cleaning, be sure to
unplug the unit or disconnect the main power supply before servicing the unit to preventunplug the unit or disconnect the main power supply before servicing the unit to prevent
electric shocks.electric shocks.
3.Ifthe unit mustbeenergized for inspectionofthe electric circuit,userubber gloves toavoid3. If theunit must be energizedfor inspection of theelectric circuit, use rubbergloves to avoid
contact with any live parts resulting in electric shocks.contact with any live parts resulting in electric shocks.
4. Keep the following in mind when servicing the refrigeration circuit:4. Keep the following in mind when servicing the refrigeration circuit:
(1) Be sure to recover the refrigerant. Do not discharge it into the atmosphere. It will(1) Be sure to recover the refrigerant. Do not discharge it into the atmosphere. It will
affecttheenvironment.affecttheenvironment.
(2) Check for any flames in the vicinity, and ensure good ventilation.(2) Check for any flames in the vicinity, and ensure good ventilation.
(3) If the refrigerant should leak in servicing, immediately put out any fire used in the(3) If the refrigerant should leak in servicing, immediately put out any fire used in the
vicinity.vicinity.
(4)Whenunbrazingtherefrigerationcircuitconnections,checkthatthecircuitiscompletely(4)Whenunbrazingtherefrigerationcircuitconnections,checkthatthecircuitiscompletely
evacuated. The refrigerant may produce a poisonous gas when coming in contactevacuated. The refrigerant may produce a poisonous gas when coming in contact
with an open flame.with an open flame.
(5) Do not braze in an enclosed room to prevent carbon monoxide poisoning.(5) Do not braze in an enclosed room to prevent carbon monoxide poisoning.
(6) In case of a refrigerant leak, locate and repair the leaking part completely. Leaked(6) In case of a refrigerant leak, locate and repair the leaking part completely. Leaked
refrigerantmay producea poisonousgaswhencomingincontactwith anopen flame.refrigerant mayproduceapoisonousgaswhencoming incontact withan openflame.
(7) Before servicing, check the surface temperature of the refrigeration circuit to prevent(7) Before servicing, check the surface temperature of the refrigeration circuit to prevent
aburn.aburn.

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5. Keep the following in mind when making electrical connections:5. Keep the following in mind when making electrical connections:
(1) Check for proper grounding connections, and repair if necessary to prevent electric(1) Check for proper grounding connections, and repair if necessary to prevent electric
shocks.shocks.
(2)Alwaysuseservicepartsintendedfortheapplicablemodelforreplacementofdefective(2)Alwaysuseservicepartsintendedfortheapplicablemodelforreplacementofdefective
parts. Useproper toolstosecurethewiring. Otherwise abnormaloperation ortroubleparts. Useproper toolstosecurethewiring. Otherwise abnormaloperation ortrouble
may occur and cause electric leaks or fire.may occur and cause electric leaks or fire.
(3)Checkforproperpartinstallations,wiringconditionsandsolderedorsolderlessterminal(3)Checkforproperpartinstallations,wiringconditionsandsolderedorsolderlessterminal
connections to avoid fire, heat or electric shocks.connections to avoid fire, heat or electric shocks.
(4) Be sure to replace damaged or deteriorated power cords and lead wires to prevent(4) Be sure to replace damaged or deteriorated power cords and lead wires to prevent
fire, heat or electric shocks.fire, heat or electric shocks.
(5) Cut-off lead wires must be bound using closed end connectors or the like, with their(5) Cut-off lead wires must be bound using closed end connectors or the like, with their
closed ends up to avoid entrance of moisture that could lead to electric leaks or fire.closed ends up to avoid entrance of moisture that could lead to electric leaks or fire.
(6) After servicing, always use a megohmmeter (500V DC) to check for the insulation(6) After servicing, always use a megohmmeter (500V DC) to check for the insulation
resistance of at least 1 megohm between the live part (attachment plug) and theresistance of at least 1 megohm between the live part (attachment plug) and the
dead metal part (grounding terminal).dead metal part (grounding terminal).
(7) Do not service the electrical parts with wet hands to prevent electric shocks.(7) Do not service the electrical parts with wet hands to prevent electric shocks.
(8) The capacitors used for the compressor and other components may be under high(8) The capacitors used for the compressor and other components may be under high
voltage and should be discharged properly before servicing.voltage and should be discharged properly before servicing.
CAUTIONCAUTION
1. After servicing, follow the instructions below:1. After servicing, follow the instructions below:
(1) Check for water leaks in the water supply and drain pipes to prevent damage to the(1) Check for water leaks in the water supply and drain pipes to prevent damage to the
vicinityincludinghousehold effects.vicinityincludinghousehold effects.
(2) Always check the unit for proper operation before finishing services.(2) Always check the unit for proper operation before finishing services.
(3)Besure to reassemblethe parts completely. Loose assembly of such parts as control(3) Besureto reassemble theparts completely. Loose assembly of such parts as control
boxcovermaycauseentranceofverminsresultingin ashortcircuitbetweenterminalsboxcovermaycauseentranceofverminsresulting inashortcircuitbetweenterminals
and possible ignition.and possible ignition.

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2. MODEL NAME2. MODEL NAME
HH NCNC -- 120120 AA EE -- R/LR/L
High GradeHigh Grade Unit LocationUnit Location
R: Unit on rightR: Unit on right
L: Unit on leftL: Unit on left
CounterShowcaseCounter Showcase European/generalEuropean/general
export modelexport model
Width(cm)Width(cm)
120, 150, 180, 210120, 150, 180, 210 DevelopmentOrderDevelopmentOrder
Starts from AStarts from A
Unit on rightUnit on right
Uniton leftUniton left

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3. OPERATING INSTRUCTIONS3. OPERATING INSTRUCTIONS
IMPORTANTIMPORTANT
Hoshizaki Counter Showcase is intended for temporary food display.Hoshizaki Counter Showcase is intended for temporary food display.
Constructed with much glass, this showcase gives relatively insufficient heatConstructed with much glass, this showcase gives relatively insufficient heat
insulationand poorcoolingperformance comparedwith refrigeratorsingeneral.insulationand poorcoolingperformance comparedwith refrigeratorsingeneral.
For safe and efficient operation, be sure to follow the instructions below.For safe and efficient operation, be sure to follow the instructions below.
1) Do not leave foods in the showcase after service hours, or they may dry or spoil. Foods1) Do not leave foods in the showcase after service hours, or they may dry or spoil. Foods
that should not dry must be covered or wrapped up in a plastic film.that should not dry must be covered or wrapped up in a plastic film.
2) Store only pre-refrigerated items in the showcase. It takes longer for foods to cool in the2) Store only pre-refrigerated items in the showcase. It takes longer for foods to cool in the
showcase than in a refrigerator.showcase than in a refrigerator.
3) Only open the doors when necessary and do not leave them open as the interior3) Only open the doors when necessary and do not leave them open as the interior
temperature may rise, resulting in food deterioration.temperature may rise, resulting in food deterioration.
4) Do not pack the showcase with foods. The cooling performance may reduce, resulting in4) Do not pack the showcase with foods. The cooling performance may reduce, resulting in
food deterioration.food deterioration.
5) The showcase should not be exposed to direct sunlight or located next to ovens, grills or5) The showcase should not be exposed to direct sunlight or located next to ovens, grills or
other high heat producing equipment. The interior temperature may rise, resulting in foodother high heat producing equipment. The interior temperature may rise, resulting in food
deterioration.deterioration.
6)Theambient temperatureshould notexceed30°C. The coolingperformance mayreduce,6)The ambienttemperatureshould notexceed 30°C. The coolingperformance mayreduce,
resulting in food deterioration.resulting in food deterioration.
7) The Food Mount can be used on either side. The food temperature is controllable by7) The Food Mount can be used on either side. The food temperature is controllable by
turning over the Food Mount to change the distance from the interior bottom.turning over the Food Mount to change the distance from the interior bottom.
Normal conditionNormal condition
When food temp. is too lowWhen food temp. is too low For more intensive coolingFor more intensive cooling
8) The maximum safe height for displaying food products is 9cm above the interior bottom.8) The maximum safe height for displaying food products is 9cm above the interior bottom.
Foodproducts shouldnot beplacedabovethisheightasthey maynot remaincold enoughFood productsshould notbe placedabove thisheightastheymaynotremain coldenough
to avoid spoilage.to avoid spoilage.

4. SPECIFICATIONS
MODEL HNC-120AE-L
-R HNC-150AE-L -R HNC-180AE-L -R HNC-210AE-L -R
AC SUPPLY VOLTAGE
POWER SUPPLY CAPACITY
RATED AMPERAGE
STARTING AMPERAGE
ELECTRIC CONSUMPTION
POWER FACTOR
1 Phase 220-240V 50Hz
0.67kVA (2.8A)
1.1A
10A
150W
56%
PULL DOWN TIME (10°C)
SATURATION TEMPERATURE Approx. 40 min. (Ambient Temp. 30°C, No Load) Approx. 4°C (Ambient Temp. 30°C, No Load) Measured 20mm above the food mount (normal
position) located at the
interior bottom center
NET CAPACITY 42 L57 L 72 L 87 L
1200 mm 1500 mm 1800 mm 2100 mmEXTERIOR DIMENSIONS (W)
(D)
(H) 345 mm
280 mm
845 mm 1145 mm 1445 mm 1745 mmINTERIOR DIMENSIONS (W)
(D)
(H) 288 mm (bottom)
157 mm
EXTERIOR
INTERIOR
INSULATION
Glass, ABS Plastic, PVC Plastic,Galvanized Steel
Glass, ABS Plastic, Stainless Steel
Polyurethane Foam
REFRIGERATION SYSTEM
DEFROST SYSTEM Convection Cooling None
Hermetic 100W Model SE45Y-5ZV
Fin and Tube Type, Cooling Fan Motor x 1
(UPPER) Bare Tube Type, (LOWER) Pipe on Sheet Type
Constant Pressure Expansion Valve
COMPRESSOR
CONDENSER
EVAPORATOR
REFRIGERANT CONTROL
REFRIGERANT TYPE / CHARGE R134a / 150 g R134a / 180 g R134a / 190 gR134a / 210 g
ELECTRIC CIRCUIT PROTECTION
COMPRESSOR PROTECTION Ground Fault Circuit Interrupter, Ground Wire Motor Protector
SLIDING DOOR 2 pcs. 4 pcs.
NET WEIGHT / GROSS WEIGHT 30 kg / 42 kg 36 kg / 51 kg 42 kg / 60 kg 48 kg / 69 kg
PACKAGE Carton (on pallet)
1280 mm 1580 mm 1880 mm 2180 mmSHIPPING DIMENSIONS (W)
(D)
(H) 413 mm
465 mm
CERTIFICATION CE Marking
3 pcs. 4 pcs. 5 pcs. 6 pcs.ACCESSORIES FOOD MOUNT
PLUG
VINYL HOSE
JOINT
2 pcs.
1 pc.
1 pcs.
4 pcs.
1 pc.
2 pcs.
AMBIENT TEMP.
VOLTAGE VARIATION 10 - 30°C Rated voltage ±10%
* The electrical specifications were determined at an ambient temperature of 30°C according to the electrical
appliance technical standards.
* The food temperature is controllable by turning over the food mounts.
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5. DIMENSIONS5. DIMENSIONS
[a] HNC-120AE-L[a] HNC-120AE-L

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[b] HNC-120AE-R[b] HNC-120AE-R

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88
[c] HNC-150AE-L[c] HNC-150AE-L

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[d] HNC-150AE-R[d] HNC-150AE-R

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1010
[e] HNC-180AE-L[e] HNC-180AE-L

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[f] HNC-180AE-R[f] HNC-180AE-R

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1212
[g] HNC-210AE-L[g] HNC-210AE-L

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[h] HNC-210AE-R[h] HNC-210AE-R

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6. PERFORMANCE DATA6. PERFORMANCE DATA
(°C)(°C)
(min)(min)
HNC-210AEHNC-210AE
Test Conditions: Ambient Temperature 30°C, Frequency 50Hz, StandardTest Conditions: Ambient Temperature 30°C, Frequency 50Hz, Standard
Pull Down Time (from 30°C to 10°C)Pull Down Time (from 30°C to 10°C) 42 min42 min
60mm above food mount60mm above food mount 5.2°C5.2°C
Saturation Temp.Saturation Temp. 20mm above food mount20mm above food mount 3.6°C3.6°C
Food mount surfaceFood mount surface 1.9°C1.9°C
0
5
10
15
20
25
30
35
0 10 20 30 40 50 60 70 80 90 100 110 120 130
60mm above food mount 20mm above food mount food mount surface

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7. REFRIGERATION CIRCUIT7. REFRIGERATION CIRCUIT
Refrigerant: R134aRefrigerant: R134a
Heat ExchangeHeat Exchange
CondenserCondenser
DrierDrier
ExpansionExpansion
ValveValve
EvaporatorEvaporator
(Upper)(Upper)
EvaporatorEvaporator
(Lower)(Lower)
Fan MotorFan Motor
CompressorCompressor

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8. WIRING DIAGRAM8. WIRING DIAGRAM
CMCM CompressorCompressor
SRSR StartRelayStartRelay
OLOL OverloadRelayOverloadRelay
FMFM Fan MotorFan Motor
ELBELB GroundFault CircuitInterrupterGroundFault CircuitInterrupter
Power Supply 1 phase 220 - 240V 50HzPower Supply 1 phase 220 - 240V 50Hz
GR/YGR/Y (BR)(BR) (LBU)(LBU)
BKBK WW
(BK)(BK) (BK)(BK)

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9. CONSTRUCTION9. CONSTRUCTION
Sliding DoorSliding Door
Food MountFood Mount
Cover - UnitCover - Unit
Side CoverSide Cover
Side FrameSide Frame
Top CoverTop Cover
UnitUnit
Evaporator PipeEvaporator Pipe
Front GlassFront Glass
Holder - Evaporator PipeHolder - Evaporator Pipe Center FrameCenter Frame
LouverLouver
Ground FaultGround Fault
Circuit InterrupterCircuit Interrupter Control BoxControl Box

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10. REMOVAL AND REPLACEMENT10. REMOVAL AND REPLACEMENT
CAUTIONCAUTION
1. Be sure to unplug the showcase before removing or replacing the parts.1. Be sure to unplug the showcase before removing or replacing the parts.
2. Handle the glass parts with care.2. Handle the glass parts with care.
[a] SIDE COVER[a] SIDE COVER
Removethe Capfromthe SideCover, themachinescrew insideand thetwo machinescrewsRemove theCap fromtheSideCover,the machinescrew insideandthe twomachine screws
(black) at the bottom.(black) at the bottom.
[b] TOP COVER[b] TOP COVER
Remove the Sliding Door and Side Cover.Remove the Sliding Door and Side Cover.
1) The Top Cover is hooked and fixed on the1) The Top Cover is hooked and fixed on the
TopFrame (aluminum).Top Frame(aluminum).
2) Lift up and unhook the rear end of the Top2) Lift up and unhook the rear end of the Top
Cover.Cover.
3)Whentherearpartisliftedoff,moveit forward3)Whentherearpartisliftedoff,moveit forward
to unhook and remove the front part.to unhook and remove the front part.
TheTopCoveristightlyhookedontheTopFrameTheTopCoveristightlyhookedontheTopFrame
andwillnot comeoff easily. Removeitwith careandwillnot comeoff easily. Remove itwith care
to avoid injury. To replace, reverse the removalto avoid injury. To replace, reverse the removal
procedure.procedure.
[c] COVER - UNIT[c] COVER - UNIT
Remove the Sliding Door, Side Cover and TopRemove the Sliding Door, Side Cover and Top
Cover. Remove the two machine screwsCover. Remove the two machine screws
securing the top of the Cover - Unit, and take offsecuring the top of the Cover - Unit, and take off
theCover.theCover.
[d] FRONT GLASS[d] FRONT GLASS
RemovetheSlidingDoor,SideCover,TopCoverRemovetheSlidingDoor,SideCover,TopCover
and Cover - Unit. Remove the Holder - Frameand Cover - Unit. Remove the Holder - Frame
securedontheTopFramewith machinescrews.securedontheTopFramewith machinescrews.
Lift the Front Glass off the bottom fit.Lift the Front Glass off the bottom fit.
ThesideinterioroftheFrontGlassissealedwithThesideinterioroftheFrontGlassissealedwith
silicone sealant (black). Be sure to re-seal it atsilicone sealant (black). Be sure to re-seal it at
replacement.replacement.
TopCoverTopCover
①
②
③
TopFrameTopFrame
Fig. 1Fig. 1
Fig. 2Fig. 2
GasketGasket Holder- FrameHolder - Frame
TopFrameTopFrame
Front GlassFront Glass