Hoshizaki CM-110EE User manual

NO. E2EB-679
ISSUED: JUN. 3, 2005
REVISED: JAN. 20, 2006
HOSHIZAKI
SELF-CONTAINED ICE MAKER
CUBELET CM-110EE
FLAKE FM-80EE
FM-120EE(-N)
FM-120EE-50(-N)
SERVICE MANUAL
MODEL

CONTENTS PAGE
I.SPECIFICATIONS---------------------------------------------------------------------------------------1
1.DIMENSIONS/CONNECTIONS ------------------------------------------------------------------1
[a] CM-110EE, FM-120EE, FM-120EE-N, FM-80EE --------------------------------------1
[b] FM-120EE-50, FM-120EE-50-N ------------------------------------------------------------2
2.SPECIFICATIONS-----------------------------------------------------------------------------------3
[a] CM-110EE ----------------------------------------------------------------------------------------3
[b] FM-120EE ----------------------------------------------------------------------------------------4
[c] FM-120EE-N -------------------------------------------------------------------------------------5
[d] FM-120EE-50 ------------------------------------------------------------------------------------6
[e] FM-120EE-50-N---------------------------------------------------------------------------------7
[f] FM-80EE ------------------------------------------------------------------------------------------8
II.GENERALINFORMATION----------------------------------------------------------------------------9
1.CONSTRUCTION------------------------------------------------------------------------------------9
2. OPERATION - Howit works ---------------------------------------------------------------------12
3.TIMER BOARD-------------------------------------------------------------------------------------13
[a]SOLID-STATE CONTROL-------------------------------------------------------------------13
[b]TIMERBOARD --------------------------------------------------------------------------------13
[c] SEQUENCE ------------------------------------------------------------------------------------14
III.INSTALLATIONINSTRUCTIONS -----------------------------------------------------------------17
1.UNPACKING----------------------------------------------------------------------------------------17
2.LOCATION ------------------------------------------------------------------------------------------18
3.INSTALLATION -------------------------------------------------------------------------------------19
4.ELECTRICALCONNECTIONS ----------------------------------------------------------------19
5. WATER SUPPLYAND DRAIN CONNECTIONS -------------------------------------------20
IV.OPERATINGINSTRUCTIONS --------------------------------------------------------------------22
1. START UP-------------------------------------------------------------------------------------------22
2. PREPARING THE ICEMAKER FOR LONG STORAGE ---------------------------------23
V. MAINTENANCE --------------------------------------------------------------------------------------24
1.PERIODICAL CLEANING ----------------------------------------------------------------------- 24
2. CLEANING OF WATER SYSTEM -------------------------------------------------------------26
VI.TECHNICALINFORMATION----------------------------------------------------------------------30
1.WATERCIRCUITANDREFRIGERANTCIRCUIT -----------------------------------------30
2.WIRINGDIAGRAM --------------------------------------------------------------------------------31
[a] CM-110EE, FM-120EE(-N), FM-120EE-50(-N)----------------------------------------31
[b] FM-80EE ----------------------------------------------------------------------------------------32
3.TIMINGCHART ------------------------------------------------------------------------------------33
[a]PRINCIPLEOFOPERATION---------------------------------------------------------------33
[b]PROTECTORS --------------------------------------------------------------------------------33
4. PERFORMANCE DATA -------------------------------------------------------------------------35
[a] CM-110EE --------------------------------------------------------------------------------------35
i

[b] FM-120EE, FM-120EE-50------------------------------------------------------------------36
[c] FM-120EE-N, FM-120EE-50-N ------------------------------------------------------------37
[d] FM-80EE ----------------------------------------------------------------------------------------38
VII.SERVICEDIAGNOSIS ----------------------------------------------------------------------------39
1.NOICE PRODUCTION---------------------------------------------------------------------------39
2.LOW ICEPRODUCTION ------------------------------------------------------------------------41
3.OTHERS ---------------------------------------------------------------------------------------------41
VIII. REMOVALAND REPLACEMENT OF COMPONENTS ----------------------------------43
1. SERVICE FOR REFRIGERANT LINES ------------------------------------------------------43
[a]SERVICEINFORMATION -------------------------------------------------------------------43
[b]REFRIGERANTRECOVERY --------------------------------------------------------------44
[c] EVACUATIONAND RECHARGE ---------------------------------------------------------44
2.BRAZING --------------------------------------------------------------------------------------------45
3. COMPRESSOR -----------------------------------------------------------------------------------45
4.DRIER ------------------------------------------------------------------------------------------------47
5. EXPANSION VALVE------------------------------------------------------------------------------48
6. EVAPORATORASSEMBLY --------------------------------------------------------------------49
7. FAN MOTOR---------------------------------------------------------------------------------------- 53
8.FLOATSWITCH -----------------------------------------------------------------------------------53
9. CONTROLWATER VALVE ---------------------------------------------------------------------54
ii

1
I. SPECIFICATIONS
1. DIMENSIONS/CONNECTIONS
[a] CM-110EE, FM-120EE, FM-120EE-N, FM-80EE

2
[b] FM-120EE-50, FM-120EE-50-N

2. SPECIFICATIONS
[a] CM-110EE
AC SUPPLY VOLTAGE
AMPERAGE
STARTING AMPERAGE
ELECTRIC CONSUMPTION
POWER FACTOR
POWER SUPPLY CAPACITY
1 phase 220-240V 50Hz
3.5A (Ambient temp. 32°C, Water temp. 21°C)
13A
525W (Ambient temp. 32°C, Water temp. 21°C)
65%
Min 1.08kVA (4.5A)
ICE PRODUCTION PER 24h
Approx. 110 kg (Ambient temp. 10°C, Water temp. 10°C) Approx. 98 kg (Ambient temp. 21°C, Water temp. 15°C)
Approx. 75 kg (Ambient temp. 32°C, Water temp. 21°C)
WATER CONSUMPTION PER 24h Approx. 0.110 m
3
(Ambient temp. 10°C, Water temp. 10°C)
Approx. 0.098 m
3
(Ambient temp. 21°C, Water temp. 15°C)
Approx. 0.075 m
3
(Ambient temp. 32°C, Water temp. 21°C)
SHAPE OF ICE
MAX STORAGE CAPACITY
Cubelet
Approx. 32kg - Leveled
(Bin Control Setting Approx. 27kg)
DIMENSIONS (DRAWING No.)
EXTERIOR
INSULATION
CONNECTION - ELECTRIC
- WATER SUPPLY
- DRAIN
640(W) x 600(D) x 800(H) (mm) (359551)
Stainless Steel, Galvanized Steel (Rear)
Polyurethane Foam
Y-type Con. (with EU Plug)
Inlet G 3/4” (Connected at rear side)
Outlet R 3/4” (Connected at rear side)
ICE MAKING SYSTEM
HARVESTING SYSTEM Auger type Direct driven Auger (80W Gear Motor)
COMPRESSOR
CONDENSER HEAT REJECTION
EVAPORATOR
REFRIGERANT CONTROL
REFRIGERANT CHARGE
Hermetic Compressor 315W Model SC12G
Fin and Tube type forced air cooling
1030W
Copper Tube on Cylinder
Capillary Tube
R134a 150g
BIN CONTROL SYSTEM
ICE MAKING WATER CONTROL
Mechanical Bin Control (or Actuator and Reed Switch)
(Time Delay Controlled)
Float Switch and Water Valve
ELECTRICAL PROTECTION
COMPRESSOR PROTECTION
GEAR MOTOR PROTECTION
LOW WATER PROTECTION
Class I Appliance
6A Circuit Breaker
Auto-reset Overload Protector
Auto-reset Pressure Switch
Manual-reset Circuit Breaker
Auto-reset Thermal Protector
Float Switch and Timer
WEIGHT
PACKAGE Net weight 71kg / Gross weight 82 kg Carton 746mm(W) x 706mm(D) x 922mm(H)
ACCESSORIES Scoop, Installation Kit
OPERATION CONDITIONS
AMBIENT TEMP.
WATER SUPPLY TEMP
WATER SUPPLY PRESSURE
5 - 40°C
5 - 35°C
0.5 - 8 bar (0.05 - 0.8MPa)
We reserve the right to make changes in specifications and design without prior notice.
3

[b] FM-120EE
AC SUPPLY VOLTAGE
AMPERAGE
STARTING AMPERAGE
ELECTRIC CONSUMPTION
POWER FACTOR
POWER SUPPLY CAPACITY
1 phase 220-240V 50Hz
3.5A (Ambient temp. 32°C, Water temp. 21°C)
13A
520W (Ambient temp. 32°C, Water temp. 21°C)
65%
Min 1.08kVA (4.5A)
ICE PRODUCTION PER 24h
Approx. 125 kg (Ambient temp. 10°C, Water temp. 10°C) Approx. 115 kg (Ambient temp. 21°C, Water temp. 15°C)
Approx. 85 kg (Ambient temp. 32°C, Water temp. 21°C)
WATER CONSUMPTION PER 24h Approx. 0.125 m
3
(Ambient temp. 10°C, Water temp. 10°C)
Approx. 0.115 m
3
(Ambient temp. 21°C, Water temp. 15°C)
Approx. 0.085 m
3
(Ambient temp. 32°C, Water temp. 21°C)
SHAPE OF ICE
MAX STORAGE CAPACITY
Flake
Approx. 26kg - Leveled
(Bin Control Setting Approx. 21kg)
DIMENSIONS (DRAWING No.)
EXTERIOR
INSULATION
CONNECTION - ELECTRIC
- WATER SUPPLY
- DRAIN
640(W) x 600(D) x 800(H) (mm) (359549)
Stainless Steel, Galvanized Steel (Rear)
Polyurethane Foam
Y-type Con. (with EU Plug)
Inlet G 3/4” (Connected at rear side)
Outlet R 3/4” (Connected at rear side)
ICE MAKING SYSTEM
HARVESTING SYSTEM Auger type Direct driven Auger (80W Gear Motor)
COMPRESSOR
CONDENSER HEAT REJECTION
EVAPORATOR
REFRIGERANT CONTROL
REFRIGERANT CHARGE
Hermetic Compressor 315W Model SC12G
Fin and Tube type forced air cooling
1030W
Copper Tube on Cylinder
Capillary Tube
R134a 150g
BIN CONTROL SYSTEM
ICE MAKING WATER CONTROL
Mechanical Bin Control (or Actuator and Reed Switch)
(Time Delay Controlled)
Float Switch and Water Valve
ELECTRICAL PROTECTION
COMPRESSOR PROTECTION
GEAR MOTOR PROTECTION
LOW WATER PROTECTION
Class I Appliance
6A Circuit Breaker
Auto-reset Overload Protector
Auto-reset Pressure Switch
Manual-reset Circuit Breaker
Auto-reset Thermal Protector
Float Switch and Timer
WEIGHT
PACKAGE Net weight 71kg / Gross weight 82 kg Carton 746mm(W) x 706mm(D) x 922mm(H)
ACCESSORIES Scoop, Installation Kit
OPERATION CONDITIONS
AMBIENT TEMP.
WATER SUPPLY TEMP
WATER SUPPLY PRESSURE
5 - 40°C
5 - 35°C
0.5 - 8 bar (0.05 - 0.8MPa)
We reserve the right to make changes in specifications and design without prior notice.
4

[c] FM-120EE-N
AC SUPPLY VOLTAGE
AMPERAGE
STARTING AMPERAGE
ELECTRIC CONSUMPTION
POWER FACTOR
POWER SUPPLY CAPACITY
1 phase 220-240V 50Hz
3.5A (Ambient temp. 32°C, Water temp. 21°C)
13A
525W (Ambient temp. 32°C, Water temp. 21°C)
65%
Min 1.08kVA (4.5A)
ICE PRODUCTION PER 24h
Approx. 110 kg (Ambient temp. 10°C, Water temp. 10°C) Approx. 98 kg (Ambient temp. 21°C, Water temp. 15°C)
Approx. 75 kg (Ambient temp. 32°C, Water temp. 21°C)
WATER CONSUMPTION PER 24h Approx. 0.110 m
3
(Ambient temp. 10°C, Water temp. 10°C)
Approx. 0.098 m
3
(Ambient temp. 21°C, Water temp. 15°C)
Approx. 0.075 m
3
(Ambient temp. 32°C, Water temp. 21°C)
SHAPE OF ICE
MAX STORAGE CAPACITY
Nugget
Approx. 32kg - Leveled
(Bin Control Setting Approx. 27kg)
DIMENSIONS (DRAWING No.)
EXTERIOR
INSULATION
CONNECTION - ELECTRIC
- WATER SUPPLY
- DRAIN
640(W) x 600(D) x 800(H) (mm) (359550)
Stainless Steel, Galvanized Steel (Rear)
Polyurethane Foam
Y-type Con. (with EU Plug)
Inlet G 3/4” (Connected at rear side)
Outlet R 3/4” (Connected at rear side)
ICE MAKING SYSTEM
HARVESTING SYSTEM Auger type Direct driven Auger (80W Gear Motor)
COMPRESSOR
CONDENSER HEAT REJECTION
EVAPORATOR
REFRIGERANT CONTROL
REFRIGERANT CHARGE
Hermetic Compressor 315W Model SC12G
Fin and Tube type forced air cooling
1030W
Copper Tube on Cylinder
Capillary Tube
R134a 150g
BIN CONTROL SYSTEM
ICE MAKING WATER CONTROL
Mechanical Bin Control (or Actuator and Reed Switch)
(Time Delay Controlled)
Float Switch and Water Valve
ELECTRICAL PROTECTION
COMPRESSOR PROTECTION
GEAR MOTOR PROTECTION
LOW WATER PROTECTION
Class I Appliance
6A Circuit Breaker
Auto-reset Overload Protector
Auto-reset Pressure Switch
Manual-reset Circuit Breaker
Auto-reset Thermal Protector
Float Switch and Timer
WEIGHT
PACKAGE Net weight 71kg / Gross weight 82 kg Carton 746mm(W) x 706mm(D) x 922mm(H)
ACCESSORIES Scoop, Installation Kit
OPERATION CONDITIONS
AMBIENT TEMP.
WATER SUPPLY TEMP
WATER SUPPLY PRESSURE
5 - 40°C
5 - 35°C
0.5 - 8 bar (0.05 - 0.8MPa)
We reserve the right to make changes in specifications and design without prior notice.
5

[d] FM-120EE-50
AC SUPPLY VOLTAGE
AMPERAGE
STARTING AMPERAGE
ELECTRIC CONSUMPTION
POWER FACTOR
POWER SUPPLY CAPACITY
1 phase 220-240V 50Hz
3.5A (Ambient temp. 32°C, Water temp. 21°C)
13A
520W (Ambient temp. 32°C, Water temp. 21°C)
65%
Min 1.08kVA (4.5A)
ICE PRODUCTION PER 24h
Approx. 125 kg (Ambient temp. 10°C, Water temp. 10°C) Approx. 115 kg (Ambient temp. 21°C, Water temp. 15°C)
Approx. 85 kg (Ambient temp. 32°C, Water temp. 21°C)
WATER CONSUMPTION PER 24h Approx. 0.125 m
3
(Ambient temp. 10°C, Water temp. 10°C)
Approx. 0.115 m
3
(Ambient temp. 21°C, Water temp. 15°C)
Approx. 0.085 m
3
(Ambient temp. 32°C, Water temp. 21°C)
SHAPE OF ICE
MAX STORAGE CAPACITY
Flake
Approx. 57kg - Leveled
(Bin Control Setting Approx. 41kg)
DIMENSIONS (DRAWING No.)
EXTERIOR
INSULATION
CONNECTION - ELECTRIC
- WATER SUPPLY
- DRAIN
940(W) x 600(D) x 800(H) (mm) (359552)
Stainless Steel, Galvanized Steel (Rear)
Polyurethane Foam
Y-type Con. (with EU Plug)
Inlet G 3/4” (Connected at rear side)
Outlet R 3/4” (Connected at rear side)
ICE MAKING SYSTEM
HARVESTING SYSTEM Auger type Direct driven Auger (80W Gear Motor)
COMPRESSOR
CONDENSER HEAT REJECTION
EVAPORATOR
REFRIGERANT CONTROL
REFRIGERANT CHARGE
Hermetic Compressor 315W Model SC12G
Fin and Tube type forced air cooling
1030W
Copper Tube on Cylinder
Capillary Tube
R134a 150g
BIN CONTROL SYSTEM
ICE MAKING WATER CONTROL
Mechanical Bin Control (or Actuator and Reed Switch)
(Time Delay Controlled)
Float Switch and Water Valve
ELECTRICAL PROTECTION
COMPRESSOR PROTECTION
GEAR MOTOR PROTECTION
LOW WATER PROTECTION
Class I Appliance
6A Circuit Breaker
Auto-reset Overload Protector
Auto-reset Pressure Switch
Manual-reset Circuit Breaker
Auto-reset Thermal Protector
Float Switch and Timer
WEIGHT
PACKAGE Net weight 81kg / Gross weight 94 kg Carton 1046mm(W) x 706mm(D) x 922mm(H)
ACCESSORIES Scoop, Installation Kit
OPERATION CONDITIONS
AMBIENT TEMP.
WATER SUPPLY TEMP
WATER SUPPLY PRESSURE
5 - 40°C
5 - 35°C
0.5 - 8 bar (0.05 - 0.8MPa)
We reserve the right to make changes in specifications and design without prior notice.
6

[e] FM-120EE-50-N
AC SUPPLY VOLTAGE
AMPERAGE
STARTING AMPERAGE
ELECTRIC CONSUMPTION
POWER FACTOR
POWER SUPPLY CAPACITY
1 phase 220-240V 50Hz
3.5A (Ambient temp. 32°C, Water temp. 21°C)
13A
525W (Ambient temp. 32°C, Water temp. 21°C)
65%
Min 1.08kVA (4.5A)
ICE PRODUCTION PER 24h
Approx. 110 kg (Ambient temp. 10°C, Water temp. 10°C) Approx. 98 kg (Ambient temp. 21°C, Water temp. 15°C)
Approx. 75 kg (Ambient temp. 32°C, Water temp. 21°C)
WATER CONSUMPTION PER 24h Approx. 0.110 m
3
(Ambient temp. 10°C, Water temp. 10°C)
Approx. 0.098 m
3
(Ambient temp. 21°C, Water temp. 15°C)
Approx. 0.075 m
3
(Ambient temp. 32°C, Water temp. 21°C)
SHAPE OF ICE
MAX STORAGE CAPACITY
Nugget
Approx. 65kg - Leveled
(Bin Control Setting Approx. 47kg)
DIMENSIONS (DRAWING No.)
EXTERIOR
INSULATION
CONNECTION - ELECTRIC
- WATER SUPPLY
- DRAIN
940(W) x 600(D) x 800(H) (mm) (359554)
Stainless Steel, Galvanized Steel (Rear)
Polyurethane Foam
Y-type Con. (with EU Plug)
Inlet G 3/4” (Connected at rear side)
Outlet R 3/4” (Connected at rear side)
ICE MAKING SYSTEM
HARVESTING SYSTEM Auger type Direct driven Auger (80W Gear Motor)
COMPRESSOR
CONDENSER HEAT REJECTION
EVAPORATOR
REFRIGERANT CONTROL
REFRIGERANT CHARGE
Hermetic Compressor 315W Model SC12G
Fin and Tube type forced air cooling
1030W
Copper Tube on Cylinder
Capillary Tube
R134a 150g
BIN CONTROL SYSTEM
ICE MAKING WATER CONTROL
Mechanical Bin Control (or Actuator and Reed Switch)
(Time Delay Controlled)
Float Switch and Water Valve
ELECTRICAL PROTECTION
COMPRESSOR PROTECTION
GEAR MOTOR PROTECTION
LOW WATER PROTECTION
Class I Appliance
6A Circuit Breaker
Auto-reset Overload Protector
Auto-reset Pressure Switch
Manual-reset Circuit Breaker
Auto-reset Thermal Protector
Float Switch and Timer
WEIGHT
PACKAGE Net weight 81kg / Gross weight 94 kg Carton 1046mm(W) x 706mm(D) x 922mm(H)
ACCESSORIES Scoop, Installation Kit
OPERATION CONDITIONS
AMBIENT TEMP.
WATER SUPPLY TEMP
WATER SUPPLY PRESSURE
5 - 40°C
5 - 35°C
0.5 - 8 bar (0.05 - 0.8MPa)
We reserve the right to make changes in specifications and design without prior notice.
7

[f] FM-80EE
AC SUPPLY VOLTAGE
AMPERAGE
STARTING AMPERAGE
ELECTRIC CONSUMPTION
POWER FACTOR
POWER SUPPLY CAPACITY
1 phase 230V 50Hz
1.78A (Ambient temp. 32°C, Water temp. 21°C)
5.41A
0.3kW (Ambient temp. 32°C, Water temp. 21°C)
67%
Min 0.52kVA (2.0A)
ICE PRODUCTION PER 24h
Approx. 85 kg (Ambient temp. 10°C, Water temp. 10°C) Approx. 75 kg (Ambient temp. 21°C, Water temp. 15°C)
Approx. 60 kg (Ambient temp. 32°C, Water temp. 21°C)
WATER CONSUMPTION PER 24h Approx. 0.850 m
3
(Ambient temp. 10°C, Water temp. 10°C)
Approx. 0.750 m
3
(Ambient temp. 21°C, Water temp. 15°C)
Approx. 0.600 m
3
(Ambient temp. 32°C, Water temp. 21°C)
SHAPE OF ICE
MAX STORAGE CAPACITY Flake 26kg - Leveled
DIMENSIONS (DRAWING No.)
EXTERIOR
INSULATION
CONNECTION - ELECTRIC
- WATER SUPPLY
- DRAIN
640(W) x 600(D) x 800(H) (mm)
Stainless Steel, Galvanized Steel (Rear)
Polyurethane Foam
Y-type Con. (with EU Plug)
Inlet G 3/4” (Connected at rear side)
Outlet R 3/4” (Connected at rear side)
ICE MAKING SYSTEM
HARVESTING SYSTEM Auger type Direct driven Auger (40W Gear Motor)
COMPRESSOR
CONDENSER HEAT REJECTION
EVAPORATOR
REFRIGERANT CONTROL
REFRIGERANT CHARGE
Hermetic Compressor Model TLS6F
Fin and Tube type forced air cooling
470W (Ambient temp. 32°C, Water temp. 21°C)
Copper Tube on Cylinder
Capillary Tube
R134a 140g
BIN CONTROL SYSTEM
ICE MAKING WATER CONTROL
Mechanical Bin Control (or Actuator and Reed Switch)
(Time Delay Controlled)
Float Switch and Water Valve
ELECTRICAL PROTECTION
COMPRESSOR PROTECTION
GEAR MOTOR PROTECTION
LOW WATER PROTECTION
5A Circuit Breaker, Earthing Wire
6A Circuit Breaker
Auto-reset Overload Protector
Auto-reset Pressure Switch
Manual-reset Circuit Breaker
Auto-reset Thermal Protector
Float Switch and Timer
WEIGHT
PACKAGE Net weight 65kg / Gross weight 75 kg Carton 746mm(W) x 706mm(D) x 922mm(H)
ACCESSORIES Scoop, Installation Kit
OPERATION CONDITIONS
AMBIENT TEMP.
WATER SUPPLY TEMP
WATER SUPPLY PRESSURE
5 - 40°C
5 - 35°C
0.5 - 8 bar (0.05 - 0.8MPa)
We reserve the right to make changes in specifications and design without prior notice.
8

9
II. GENERAL INFORMATION
1. CONSTRUCTION
Self-contained cubelet icemaker model CM-110EE and self-contained flaker models FM-
120EE, FM-120EE-N, FM-120EE-50, FM-120EE-50-N and FM-80EE include Water Sup-
ply, Evaporator, Condensing and ControlAssemblies.
Power Supply Cord
Air Filter
Top Panel
Door
Front Panel (Left)
Front Cover
Louver
Spout
Evaporator
Reservoir
Compressor
GearMotor
Fan Motor
Bin Control Switch
Drainboard
Circuit Breaker
Control Box
Condenser

10
ICE MAKING UNIT [CM-110EE, FM-120EE-N, FM-120EE-50-N]

11
ICE MAKING UNIT [FM-120EE, FM-120EE-50, FM-80EE]

12
2. OPERATION - How it works
Potable water flows from the external supplytap and enters the water inlet on the machine,
passes through an electrically operated Water Valve before flowing into the ReservoirTank.
FromtheTank, waterflowsbygravityintothebottom of theEvaporatortocompletelysurround
theAuger and fill the Evaporatorwith water to the same level as in the ReservoirTank.
Waterleakage at the bottom of theEvaporator is preventedby the use of a mechanicalseal.
The Evaporator serves to change the water into ice by using a heat exchange process in
conjunction with the Compressor/Condenser assembly.
As water is used and turned into ice, the level in the Evaporator and the ReservoirTank will
fall. Atapre-determinedlevel,adualactionFloatSwitchfittedtotheReservoirTankelectrically
commands the Water Valve to open and refill the Tank. This system functions therefore to
maintain a constant water level inside the Evaporatorassembly.
The Auger, which is located inside the Evaporator is driven by an external Gear Motor
assembly. TherotatingAugercarriestheiceupwardswhereitispressedagainsttheExtruding
Head at the top of the Evaporator to remove excess water, before finally being extruded and
broken into irregular shapes and sizes of ice by the Flake/Nugget Cutter or into cubelet ice.
Thecontinuousflowoficeisthen pushedintotheIceSpoutandfallsbygravityintotheStorage
Bin below.
Moving the Operation Switch, located on the Control Box, to the “ON” position starts an
automaticand continuous icemaking process. When the StorageBin has filled with ice,the
Bin ControlSwitch, located atthe top of the Storage Bin,stopsthe icemaking process. When
ice is removed from the Storage Bin, the Bin Control Switch will automatically reset and
restart the icemaking process.

13
3. TIMER BOARD
[a] SOLID-STATE CONTROL
1)An exclusive HOSHIZAKI solid-state control is employed in CM-110EE, FM-120EE, FM-
120EE-N, FM-120EE-50, FM-120EE-50-N and FM-80EE self-contained icemakers.
2)APrinted Circuit Board (hereafter called “Timer Board”) includes a stable and high-quality
controlsystem.
3) No adjustment is required.
[b] TIMER BOARD
CAUTION
1.Fragile,handleverycarefully.
2.Atimerboard contains CMOS (ComplementaryMetal-Oxide Semiconductor)
integrated circuits, which are susceptible to failure due to static discharge. It
is especially important to either wear an anti-static wrist strap or touch a
metal part of the machine before servicing to be static free.
3. Do not touch the electronic devices on either side of the board to prevent
damage.
4. Do not change wiring and connections. Especially, never misconnect
terminals.
5. Do not repair the electronic devices or parts on the board in the field. Always
replace the whole board assemblywhen it fails.
The icemaker is controlled by the Timer Board for the following purposes:
1)To prevent the GearMotor and the Compressor from starting or stopping simultaneously.
2) To reduce ice remaining in the Evaporator.
3) To protect the unit in case of low water and lowwater pressure.
4)To protect theunit from short cycling if the Bin Control resets quickly.

14
[c] SEQUENCE
Fig. 1
Fig. 2

15
Fig. 3
PART CODE 437305-02
MODEL H2AA144C02
RATING 24 VAC 50/60Hz
T
1 60 ± 15 sec.
T
2 90 ± 22 sec.
T
3 150 ± 45 sec.
T
4 Max. 1 sec.
T
5 Max. 0.25 sec.
T
6 Max. 1 sec.
CONTROL(CTL)
PROTECT (PRT)
X1 RELAY
(GEARMOTOR)
X2 RELAY
(COMPRESSOR)
Note: “T” (time) functions of the Timer Board are non-adjustable.

16
Functions of Terminals
1)Terminals 1, 2
Power supplyAC 24V.
2)Terminals 3, 4
Control X 1 (GM) and X 2 (CM) Relays.
When closed, energize X 1 (GM) in 1 sec. and X 2 (CM) in 60 sec.
When opened, de-energize X 1 (GM) in 150 sec. and X 2 (CM) in 90 sec.
3)Terminals 5, 6
Control X
1 (GM) and X 2 (CM) Relays.
When opened, de-energize X
1 (GM) and X 2 (CM) immediately.
When closed, energize X 1 (GM) in 1 sec. and X 2 (CM) in 60 sec.
4) Terminals 7, 8, 9
X
1 (GM) contacts.
8 is a movable contact, 7 is a make contact, and 9 is a break contact.
5) Terminals 10, 11
Control X
2 (CM) Relay.
When opened, de-energize X 2 (CM) immediately.
When closed, energize X 2 (CM) immediately.
Note: 1.X 2 Relay is a single pole, normally open relay, and its terminals are mounted on the
relayitself.
2.The above operation times are median. See Fig. 3 for details.
3. GM = Gear Motor
CM = Compressor

17
Fig. 4
III. INSTALLATION INSTRUCTIONS
WARNING
The installation must be carried out byqualified personnel, in accordance with
current regulations, according tothe manufacturer’s instructions.
1. UNPACKING
WARNING
Childrenshould not beallowedin reach of the packagingelements(plastic bags
and expanded polystyrene)as they are potential sources of danger.
CAUTION
Remove shipping carton, tape(s) and packing. If packing material is left in the
icemaker, it will not work properly.
1) After removing the packaging, make sure that the icemaker is in good condition. If in
doubt, please do not use the equipment.
2) Remove the shipping tape holding the Door and Front Panel.
Power Supply Cord
Air Filter
Top Panel
Door
FrontPanel (Left)
FrontCover
Louver