Hoshizaki Serenity KMS-2000MLJ Service Manual Download Page 10

Page: 10 / 58

F/S

open

F/S

chec

• Minim

um fr

eez

e time:

5 min.

• Maxim

um fr

eez

e time:

eez

e timer set

ting

(S4 dip s

witch 9 & 1

Components Ener

giz

ed when the Contr

ol S

witc

h is in the "SER

VICE" P

osition

hen in the "SER

VICE" position, the contr

ol s

witch supplies po

er t

o the ser

vice s

witch and the icemak

er is in ser

vice mode

The ser

vice s

witch has thr

ee positions:

"DRAIN," "CIRC

." and "W

SH." See the inf

mation belo

w f

or det

ails of each function.

DRAIN

er is supplied t

o the pump mot

or and dr

ain v

. This dr

ains the w

er t

ank.

CIRC

er is supplied t

o the pump mot

or onl

This oper

ation can be used t

o cir

culat

e cleaner

and sanitiz

er o

ver the outside surf

ace of the e

vapor

or f

or e

ended per

iods of time

er is supplied t

o the pump mot

or and w

ash v

. This oper

ation is used t

o cir

culat

cleaner and sanitiz

er o

ver both the inside and outside surf

aces of the e

vapor

ump-Out Cy

cle

-Min

ill Cy

cle

Har

vest Cy

cle

reez

e Cy

cle

eps

ener

giz

F/S

closed

contin

ues

Comp

ener

giz

FMRs

ener

giz

HGVs

ener

giz

Ther

mist

or t

emper

atur

reaches 48

°F (9°C)

(3.9 k

Ω

or less)

Har

vest timer st

F/S

open

Comp

contin

ues

FMRs

contin

ues

ener

giz

HGVs

de-ener

giz

Comp

contin

ues

FMRs

contin

HGVs

ener

giz

ener

giz

de-ener

giz

es f

or 2 sec.,

then ener

giz

ed f

or 1

0/20 sec.

de-ener

giz

F/S

chec

•

WV time:

6 min.

or the length of har

vest min

HPT set

tings (S4 dip s

witch 6), whiche

ver is

shor

ter

• Maxim

um har

vest time:

20 min.

Ther

mist

in contr

1 t

o 3-min.

timer in contr

(S4 dip s

witch 1 & 2)

tup

begins

her

e af

ter

5-sec.

dela

F/S

is open, C

omp and FMRs de-ener

giz

e and c

ycle r

etur

ns t

o 1

-min

e fi

ll c

ycle

• F

act

y set f

or e

ver

10th c

ycle

(S4 dip s

witch 5)

•

ump mot

or st

ops f

sec., then ener

giz

for 1

0/20 sec.

(S4 dip s

witch 3 & 4)

ener

giz

de-ener

giz

Har

vest P

ump Timer

Leg

end:

-bin contr

Comp

-compr

essor

V-

ain v

FMRs

-f

an mot

s-r

emot

F/S

-fl

oat s

witch

HGVs

-hot g

as v

ves (KMS and SRK)

-liquid line v

ves (KMS and SRK)

-pump mot

-inlet w

er v

Oper

ation Flo

w Char

Anti-Slush

Ther

mist

temper

atur

ops t

o 36

°F

(2.2°C) (5.8

kΩ

or mor

e).

-ener

giz

for 1

0 sec.

50 sec.

in contr

closed

5-min.

minim

eez

e timer in

contr

opens or fr

eez

timer t

minat

When fr

eez

e time dif

fer

ential e

xceeded,

eez

e-time cor

rection c

le star

ts.

See "II.A.3.

reez

e-Time Cor

rection Char

t."

II. Sequence of Operation and Service Diagnosis

A. Sequence of Operation Flow Chart

1. Operation Flow Chart

Summary of Contents for Serenity KMS-2000MLJ

Page 1: ...Model KMS 2000MLJ Including Condensing Unit Models SRK 20J 3 Modular Crescent Cuber Serenity Series Service Manual Number 73225 Issued 6 15 2018 Revised 7 24 2019 hoshizakiamerica com ...

Page 2: ...er installation is the responsibility of the installer Product failure or property damage due to improper installation is not covered under warranty Hoshizaki provides this manual primarily to assist qualified service technicians in the installation maintenance and service of the appliance Should the reader have any questions or concerns which have not been satisfactorily addressed please call sen...

Page 3: ...rection Cycle 90 min 20 D Control Board Check 22 E Bin Control Check 24 F Float Switch Check and Cleaning 26 G Thermistor Check 28 H Switches 29 1 Control Switch 29 2 Service Switch 29 I Diagnostic Tables 30 J Freeze Up Check List 34 III Controls and Adjustments 35 A Control Board Layout 36 B LED Lights and Audible Alarm Safeties 37 C Settings and Adjustments 38 1 Default Dip Switch Settings 38 2 ...

Page 4: ...enance 48 VI Preparing the Appliance for Periods of Non Use 49 VII Disposal 51 VIII Technical Information 52 A Specification and Performance Data Sheets 52 1 KMS 2000MLJ with SRK 20J 52 2 KMS 2000MLJ with SRK 20J3 53 3 SRK 20J 54 4 SRK 20J3 55 B Wiring Diagrams 56 1 Wire Harness Connections 56 2 KMS 2000MLJ with SRK 20J 57 3 KMS 2000MLJ with SRK 20J3 58 ...

Page 5: ...nd regulations Failure to meet these code requirements could result in death electric shock serious injury fire or damage to the appliance To reduce the risk of electric shock do not touch the control switch or service switch with damp hands Before Servicing the KMS or SRK To reduce the risk of electric shock move the control switch to the OFF position and turn off the power supply to the SRK cond...

Page 6: ...power supply of proper capacity See the nameplate for electrical specifications Failure to use an independent power supply of proper capacity can result in a tripped breaker blown fuses damage to existing wiring or component failure This could lead to heat generation or fire THE REMOTE CONDENSING UNIT MUST BE GROUNDED Failure to properly ground the remote condensing unit could result in death seri...

Page 7: ...l Service Switch Thermistor Control Box Spray Guides Evaporator Strainer Top Insulation Top Panel Front Panel Insulation Panel Left Side Panel Fuse KMS Liquid Line Shutoff Valve Extension Bracket Switch Cover Switch Bracket Switch Mount Thermostatic Expansion Valves Control Box Bin Control I Construction and Water Refrigeration Circuit Diagram A Construction 1 Icemaker ...

Page 8: ... Receiver Liquid Line Shutoff Valve High Pressure Switch Strainers Top Panel Right Side Panel Louver Panel Front Panel Main Transformer Three Phase Only Left Side Upper Panel Right Left Side Lower Panel Left Side Upper Panel Crankcase Heater Liquid Line Shutoff Valve 2 2 Condensing Unit Discharge Line Thermostat Liquid Line Valve ...

Page 9: ...e Access Valve Hot Gas Valves Strainers High Pressure Switch Discharge Line Thermostat Discharge Line Compressor Receiver Accumulator Suction Line Hot Gas Valve Strainer Check Valves Thermostatic Expansion Valves Float Switch Drain Valve Drain Pump Motor Water Tank Evaporator Thermistor Heat Exchanger Liquid Line Shutoff Valves B Water Circuit and Refrigeration Circuit Liquid Line Shutoff Valve 2 ...

Page 10: ...FMRs continue PM continues LLVs energized HGVs de energized Comp continues FMRs continue HGVs energized DV energized PM de energizes for 2 sec then energized for 10 20 sec LLVs de energized F S check WV time 6 min or the length of harvest minus HPT settings S4 dip switch 6 whichever is shorter Maximum harvest time 20 min Thermistor in control 1 to 3 min timer in control S4 dip switch 1 2 Startup b...

Page 11: ... the end of the next harvest cycle Shutdown and Restart BC Operation BC open BC actuator paddle engaged Green BC CLOSED LED off Yellow BC OPEN LED on Yellow BC OPEN LED continues All components de energized 2 Icemaker Off All components de energized 3 Ice Level Lowered Icemaker starts at 1 1 Minute Fill Cycle BC closed BC actuator paddle disengaged Green BC CLOSED LED on Yellow BC OPEN LED off To ...

Page 12: ...ird freeze cycle time is added to the minimum maximum calculation Example After 8 cycles if the differential between the shortest cycle minimum and the longest cycle maximum is equal to or greater than 427 sec a freeze time correction cycle is initiated Number of Freeze Cycles Differential Value in Sec 3 254 4 309 5 349 6 380 7 406 8 427 9 446 10 462 Note When 1st freeze time correction cycle is i...

Page 13: ... When checking high voltage 115VAC always choose a neutral W to establish a good neutral connection On 3 phase models the neutral W is provided through MT To confirm a good neutral W check for 60VAC from neutral W to ground GND If 60VAC is present neutral W is good If 60VAC is not present check 208 230VAC main power supply to MT If 208 230VAC is present check MT continuity When checking voltage fr...

Page 14: ...t all shutoff valves 4 total are open and the condenser coil is not clogged or restricted Let refrigeration circuit pressures equalize If HPS does not reset and pressures are equalized replace HPS If pressures are not equalized reclaim refrigerant and diagnose refrigeration circuit restriction Check that there are no restrictions in the refrigeration circuit Harvest Cycle HGVs strainer or check va...

Page 15: ...If de energized and bypassing replace LLVs KMS and SRK 5b Harvest Pump Timer LEDs 1 3 and 2 are on When the thermistor reaches 48 F 9 C CB reads 3 9 kΩ from the thermistor and turns harvest termination over to the harvest timer S4 dip switch 1 2 and S5 dip switch 4 When WV de energizes LED 4 turns off X11 relay de energizes and LED 3 turns on PM and X12 relay energize Comp FMRs HGVs and X10 relay ...

Page 16: ...ze Cycle Diagnosis Confirm Comp FMRs and PM continue Confirm that LLVs energize Next confirm HGVs X10 and X12 relays de energize During the first 5 min of freeze confirm evaporator is cooling If not confirm WV de energized not leaking by HGVs de energized not bypassing LLVs energizes TXV and HM operate correctly Comp is efficient and refrigerant charge is correct See VIII A Specification and Perfo...

Page 17: ... If refrigeration pressures are above HM setpoint and HM is bypassing replace HM Check TXV for proper operation Remove TXV bulb and hold it in your hand refrigerant low side pressure should rise place TXV bulb in ice water refrigerant low side pressure should drop A 10 to 15 pound pressure swing between warm and cold conditions indicate a good TXV If a 10 to 15 pound swing is not present replace T...

Page 18: ...fore pump out see table above after 5 min of freeze disconnect CB black K5 connector FS connector Check that CB LEDs 1 3 and 2 are on PM stops then restarts DV energizes and water is flowing down the drain through DV b CB Diagnosis Confirm LLVs de energize If LLVs are energized with LEDs 1 3 and 2 on replace CB If PM does not stop and restart and DV does not energize check that CB LEDs 1 3 and 2 a...

Page 19: ...ure the drain line is not clogged and that DV is clean and operating properly 8 Normal Harvest Cycle Same as the initial harvest cycle Return to step 5a above Note Appliance continues to cycle until BC is satisfied or power is switched off The appliance always restarts at the 1 min fill cycle 2 Shutdown Diagnosis When BC is activated BC open the yellow BC OPEN LED comes on The icemaker then shuts ...

Page 20: ...Differential Initiation CB starts monitoring freeze times on the second freeze time After 3 freeze cycles 4th total CB begins to compare minimum and maximum freeze time cycles Every freeze cycle time after the first freeze cycle time is added to the freeze time list Minimum and maximum freeze time differential comparisons begin on the third cycle and are monitored up to 10 cycles On the 11th cycle...

Page 21: ...re on and Comp FMRs HGVs and PM energizes WV continues 10 min timer starts Once 10 min timer terminates normal freeze cycle begins CB LED 1 on and Comp FMRs and PM continue HGVs and WV de energize Note After 3rd Freeze Time Correction Cycle in 36 hours CB signals with blinking CB yellow EXT HARVEST LED Appliance continues normal operation CB POWER OK LED and CB yellow EXT HARVEST LED continue blin...

Page 22: ...WER OK LED is off check CT secondary circuit CT output is 10 5VAC at 115VAC primary input If the secondary circuit has proper voltage and the red LED is off replace CB If the secondary circuit does not have proper voltage 10 5VAC check CT primary circuit Check for 115VAC at control switch terminal 1 BR and control switch terminal 2 BK to neutral W If 115VAC is present at control switch terminal 1 ...

Page 23: ...3 0VDC K5 Float Switch Pin VDC 1 to 2 1 2VDC 1 to 3 2VDC 2 to 3 1 2VDC Thermistor 4 To verify voltage output from CB to the components slide the CB K1 connector out far enough to allow multimeter lead contact With the icemaker in the cycle to be tested check output voltage from the corresponding pin on CB K1 connector to a neutral W If output voltage is not found and the appropriate LED is on repl...

Page 24: ...ity across the wires of BC connector When the actuator paddle is engaged BC switch is open If closed check that the actuator paddle is not restricted Clean if necessary See II E 2 Bin Control Cleaning If BC switch still reads closed replace BC 8 Reconnect BC connector to CB K4 connector then move the control switch to the ICE position Turn on the power supply 9 Check that CB green BC CLOSED LED is...

Page 25: ...panel then move the control switch to the OFF position 3 Remove the top and right side panels Remove the control box cover then clear any ice away from BC 4 Disconnect BC connector from CB K4 red connector then remove BC from the icemaker 5 Remove the actuator paddle from the switch mount See Fig 2 6 Wipe down BC with a mixture of 1 part Hoshizaki Scale Away and 25 parts warm water Rinse the parts...

Page 26: ...teps in II F 2 Float Switch Cleaning After cleaning F S check it again Replace if necessary 10 Reconnect F S connector to CB K5 black connector then replace the control box cover right side and top panels in their correct positions 11 Move the control switch to ICE position Replace the front panel 12 Turn on the power supply 13 As water fills the water tank F S contacts should close After 1 min th...

Page 27: ...supply 6 Remove the front top and right side panels then move the control switch to the OFF position 7 Disconnect the vent tube and the flush tube from the top of F S housing then remove F S assembly Remove the rubber boot from the bottom of F S assembly See Fig 3 8 Remove the retainer rod from the bottom of F S assembly then remove the float Be careful not to bend the retainer rod excessively whe...

Page 28: ...2 kΩ If outside the normal range replace the thermistor See IV B Component Service Information If within the normal range continue to next step 7 Replace the thermistor in its correct position See IV B Component Service Information 8 Reconnect the thermistor connector to CB K3 white connector 9 Replace the control box cover right side and top panels in their correct positions 10 Move the control s...

Page 29: ...itch is activated power is supplied to the water pump in all three positions 2 When the control switch is in the OFF position or in the ICE position the service switch has no power and can be left in any position a DRAIN This appliance utilizes a pump out drain system When the service switch is active and placed in the DRAIN position power is supplied to the drain valve b CIRCULATE When the servic...

Page 30: ...an s not operating c Headmaster C P R open d Refrigerant overcharged e Bad contacts f Refrigerant lines or components plugged 6 Discharge Line Thermostat SRK a Ambient temperature too warm b Compressor or compressor components faulty c Defective d Hot gas valves open e Dirty condenser f Condensing unit fan s not operating 7 Wire Harness From SRK to KMS a Disconnected or loose connection 8 Fuse KMS...

Page 31: ...ctive 16 Hot Gas Valves KMS SRK a Closed in harvest cycle b Open in freeze cycle 17 Thermistor See II G Thermistor Check a Loose disconnected or defective 18 Pump Motor a Motor winding open b Bearing worn out or locked rotor c Defective capacitor 19 Thermostatic Expansion Valve a Bulb loose b Operating erratically 20 Liquid Line Valves KMS SRK a Closed in freeze cycle b Open in harvest cycle 21 Fa...

Page 32: ...nt Charge a Low 8 Control Board See III Controls and Adjustments and II D Control Board Check a Harvest timer S4 dip switch 1 2 set too short b Harvest pump timer S4 dip switch 7 not in factory default position c Defective 9 Bin Control See II E Bin Control Check a Bulb out of position b Defective 10 Thermistor See II G Thermistor Check a Loose disconnected or defective 11 Thermostatic Expansion V...

Page 33: ...isconnected or defective 7 Hot Gas Valves KMS SRK a Erratic or closed 8 Inlet Water Valve a Screen or orifice clogged 9 Compressor a Inefficient or off 10 Liquid Line Valves KMS SRK a Erratic or open 11 Thermostatic Expansion Valve TXV a Defective 12 Headmaster C P R a Defective Long Freeze Cycle 1 Evaporator a Scaled up dirty 2 Float Switch See II F Float Switch Check and Cleaning a Scaled up dir...

Page 34: ...tly 14 Are the evaporator separators positioned properly 15 Is the thermistor properly mounted tight and insulated 16 Is the TXV bulb properly mounted tight and insulated Appliance Operation Fill YES NO 17 Does the water tank fill and overflow 60 90 sec Note Larger models may take up to 120 seconds to overflow when empty 18 If NO in step 17 is water flow 5GPM for larger 19 Does the appliance utili...

Page 35: ...ard contains integrated circuits which are susceptible to failure due to static discharge It is especially important to touch the metal part of the icemaker when handling or replacing the control board Do not touch the electronic devices on the control board or the back of the control board Do not change wiring and connections Do not misconnect terminals Do not short out power supply to test for v...

Page 36: ...onnector Pin 5 LED 3 off K1 Connector Pin 4 energized in freeze LED 4 X4 Relay K1 Connector Pin 6 LED 1 X1 Relay K1 Connector Pin 1 9 K2 Connector Control Transformer 10 5VAC S5 Dip Switch ALARM RESET Button S4 Dip Switch OUTPUT TEST Button used to test relays on control board K3 white Connector Thermistor harvest control and high temperature safety K5 black Connector Float Switch water level Part...

Page 37: ...arge inefficient Comp or WRV leaking by 3 Beep Freeze Timer freeze freeze timer setting for two cycles in a row Check FS stuck closed up WV leaking by HGV leaking by PM not pumping TXV defective LLV not opening low charge HM not bypassing or inefficient Comp LED Blink Freeze Time Correction maximum freeze time differential exceeded Red POWER OK LED blinks After 3 freeze time correction cycles in 3...

Page 38: ...at Switch Selector 1 Minimum Harvest Time 4 Anti Slush 5 C Settings and Adjustments NOTICE Dip switches are factory set Failure to maintain factory settings may adversely affect performance and warranty coverage For more information contact Hoshizaki Technical Support at 1 800 233 1940 1 Default Dip Switch Settings The dip switches are factory adjusted to the following positions S4 Dip Switch Dip ...

Page 39: ...Dip Switch Setting Time sec No 1 No 2 OFF OFF 60 ON OFF 90 OFF ON 120 ON ON 180 3 Pump Out Timer Harvest Time During Pump Out S4 dip switch 3 4 NOTICE On models with harvest pump timer do not adjust 3 off and 4 on Pump does not run in pump out rotation in this setting When a pump out is called for the pump motor stops for 2 sec After 2 sec the drain valve and pump motor energize Water is removed f...

Page 40: ...reeze cycle 5 Harvest Pump Time Harvest Assist Duration S4 dip switch 6 NOTICE Factory set for proper operation Do not adjust Adjustment outside of the factory default setting may result in damage to the appliance Harvest pump time harvest assist duration is only active when S4 dip switch 7 is in the ON position In the factory default position the harvest pump time harvest assist duration starts w...

Page 41: ...the on position and harvest begins X11 and X10 relays energize A latching circuit is created through the X11 and X10 relays For further details see VIII B Wiring Diagram In the factory default position 50 sec before harvest termination LED 4 turns off inlet water valve and X11 relay de energize X10 relay remains energized through the latching circuit Next LED 3 turns on and control board K1 connec...

Page 42: ... In this case see II I 3 Low Ice Production for possible solutions The freeze timer is factory set and no adjustment is required Before changing this setting contact Hoshizaki Technical Support at 1 800 233 1940 for recommendations S4 Dip Switch Setting Time min No 9 No 10 OFF OFF 60 OFF ON 50 ON OFF 70 ON ON 75 9 Float Switch Control Selector S5 dip switch 1 NOTICE Do not adjust This must be left...

Page 43: ... S5 Dip Switch Setting Minimum Harvest Timer No 4 OFF 120 sec ON 70 sec 12 Anti Slush S5 dip switch 5 NOTICE Factory set for proper operation Do not adjust Adjustment outside the factory default setting may result in damage to the appliance This dip switch setting provides anti slush control during the freeze cycle When the evaporator temperature reaches 36 F 2 2 C the control board reads a 5 8 kΩ...

Page 44: ...ing an electronic leak detector and then raise the pressure using nitrogen gas 140 PSIG Do not use R 404A as a mixture with pressurized air for leak testing NOTICE Always recover the refrigerant and store it in an approved container Do not discharge the refrigerant into the atmosphere Do not leave the system open for longer than 15 min when replacing or servicing parts The Polyol Ester POE oils us...

Page 45: ...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 drier to exceed 250 F 121 C 2 Use an electronic leak detector or soap bubbles to check for leaks Add a trace of refrigerant to the system if using an electronic leak detector and then raise the pressure using nitrogen gas 140 PSIG Do not u...

Page 46: ...arge is required when charging an R 404A system to prevent fractionation 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 the gauge manifold 7 Allow the system to charge with liquid until the proper charge weight is met 8 If necessary add any remaining charge to the s...

Page 47: ...rmostatic Expansion Valves Attach the thermostatic expansion valve bulb to the suction line in the same location as the previous bulb The bulb should be between the 10 and 2 o clock positions on the tube Secure the bulb with the clamp and holder then insulate it Hot Gas Valves Liquid Line Valves Replace the strainer if applicable Use copper tube of the same diameter and length when replacing valve...

Page 48: ...e have fallen into the dispenser unit ice storage bin Maintenance Schedule Frequency Area Task Daily Scoop Clean the ice scoop using a neutral cleaner Rinse thoroughly after cleaning Monthly External Water Filters Check for proper pressure and change if necessary Icemaker Exterior Wipe down with a clean soft cloth Use a damp cloth containing a neutral cleaner to wipe off oil or dirt build up Clean...

Page 49: ...ol switch to the ICE position Confirm that the bin control switch is closed and calling for ice The POWER OK LED should be on and not flashing 6 Blow the icemaker water supply line out using the compressed air or carbon dioxide supply This will clear water from the inlet water valve 7 Move the control switch to the OFF position 8 Disconnect the wash valve hose from the inlet water valve tee then u...

Page 50: ... the water from the water tank 17 Remove the insulation panel and front frame 18 Disconnect the hoses connected to the water tank Allow the tank and hoses to drain completely See Fig 6 19 Remove all ice from the dispenser unit storage bin and clean the dispenser unit storage bin liner using a neutral cleaner Rinse thoroughly after cleaning 20 Reconnect the hoses to the water tank 21 Replace all re...

Page 51: ...posal The appliance contains refrigerant and must be disposed of in accordance with applicable national state and local codes and regulations Refrigerant must be recovered by properly certified service personnel ...

Page 52: ...ay 100 38 1849 839 1815 823 1560 708 70 21 80 27 90 32 watts 100 38 70 21 965 3 65 791 2 99 699 2 65 80 27 832 3 15 561 2 12 552 2 09 90 32 791 2 99 369 1 40 323 1 22 gal day m3 day 100 38 591 2 24 359 1 36 281 1 06 70 21 80 27 90 32 min 100 38 70 21 80 27 90 32 min 100 38 70 21 197 13 9 208 14 6 221 15 6 80 27 205 14 4 223 15 7 235 16 5 90 32 208 14 6 235 16 5 248 17 4 PSIG kg cm 2 G 100 38 210 1...

Page 53: ...2 87 379 1 44 336 1 27 gal day m3 day 100 38 577 2 18 369 1 40 297 1 12 70 21 80 27 90 32 min 100 38 70 21 80 27 90 32 min 100 38 70 21 197 13 9 210 14 8 221 15 6 80 27 207 14 6 228 16 0 235 16 5 90 32 210 14 8 242 17 0 251 17 7 PSIG kg cm2 G 100 38 210 14 8 244 17 2 260 18 3 70 21 40 2 8 41 2 9 44 3 1 80 27 41 2 9 43 3 1 46 3 2 90 32 41 2 9 45 3 2 48 3 3 PSIG kg cm 2 G 100 38 42 3 0 46 3 2 50 3 5...

Page 54: ...T Liquid line 1 2 Brazed Connections COMPRESSOR Hermetic Model CS24K6E PFV CONDENSER Air Cooled Fin and Tube Type COMPRESSOR PROTECTION Auto Reset Overload Protector Internal FAN MOTOR PROTECTION Thermal Protection REFRIGERANT CIRCUIT PROTECTION Auto Reset High Pressure Switch REFRIGERANT CONTROL Condensing Pressure Regulator REFRIGERANT CHARGE TOTAL R404A 27 lb 5 4 oz 12400g ICEMAKER 0 lb 7 1 oz ...

Page 55: ...1 2 Brazed Connections COMPRESSOR Hermetic Model CS24K6E TF5 CONDENSER Air Cooled Fin and Tube Type COMPRESSOR PROTECTION Auto Reset Overload Protector Internal FAN MOTOR PROTECTION Thermal Protection REFRIGERANT CIRCUIT PROTECTION Auto Reset High Pressure Switch REFRIGERANT CONTROL Condensing Pressure Regulator REFRIGERANT CHARGE TOTAL R404A 27 lb 5 4 oz 12400g ICEMAKER 0 lb 7 1 oz 200g CONDENSER...

Page 56: ...Connections BR V P BK W BR GR GND V P BK W GR BR V P BK W GR BR V P BK W GND Legend CB control board GND ground HGV hot gas valve LLV liquid line valve Wire Color Code BK black BR brown GR green P pink V violet W white KMS Icemaker Unit factory connected Fuse 10A B Wiring Diagrams 1 Wire Harness Connections ...

Page 57: ...W R O DRAIN W V BK R BK BK BR Y R HOT GAS VALVE CONTROL TRANSFORMER BK BR 10 TERMINAL BLOCK 9 7 5 3 1 BR V P BK W FAN BK BR W W BR BK FAN MAGNETIC CONTACTOR L2 C1 C2 T2 L3 L1 COM T3 T1 NO NC CAP RUN 40 MFD S C R COMP 5 2 1 START RELAY START CAP 189 227MFD O THERMOSTAT HI PRESSURE SWITCH 208 230 60 1 L1 L2 N CAP 10MFD CAP 10MFD BR BR W VALVE LINE R Y VALVE HOT GAS R Y GY R BK GY V BK W BR BK BK CRA...

Page 58: ... BK BR Y R HOT GAS VALVE COMP CONTROL TRANSFORMER BK BR 10 TERMINAL BLOCK 9 7 5 3 1 BR V P BK W FAN BK BR W W BR BK FAN MAGNETIC CONTACTOR THERMOSTAT HI PRESSURE SWITCH 208 230 60 1 L1 L2 N CAP 10MFD CAP 10MFD BR BR VALVE LINE R Y VALVE HOT GAS R Y R BK GY V BK BR BK BK CRANKCASE HEATER WIRING HARNESS W W BK P V BR 9 DBU CAP 10MFD BK P V BR V GY R W R BK Y Y R R R 1 2 3 4 5 6 7 8 9 10 BIN CONTROL ...

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Hoshizaki Serenity KMS-2000MLJ, Service Manual

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