Hoshizaki KM1900SAH, KM1601SAH3, KM1601SWH3, KM1601SRH3, KM1601SRH Service Manual

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Page 1

Hoshizaki America, Inc.

Hoshizaki

Stackable Crescent Cuber

Models KM-1301SAH/3, SWH/3, SRH/3 KM-1400SWH-M, SWH3-M KM-1601SAH/3, SWH/3, SRH/3

“A Superior Degree

of Reliability”

www.hoshizaki.com

KM-1900SAH/3, SWH/3, SRH/3 KM-2100SWH3, SRH3 KM-2500SWH3, SRH3 KMH-2000SWH/3, SRH/3

SERVICE MANUAL

Number: 73208 Issued: 7-7-2015 Revised: 8-11-2015

Page 2

WARNING

Only qualied service technicians should install and service the appliance. To obtain the name and phone number of your local Hoshizaki Certied Service Representative, visit www.hoshizaki.com. No service should be undertaken until the technician has thoroughly read this Service Manual. Failure to service and maintain the appliance in accordance with this manual will adversely affect safety, performance, component life, and warranty coverage and may result in costly water damage. Proper 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 qualied service technicians in the service of the appliance.

Should the reader have any questions or concerns which have not been satisfactorily addressed, please call, send an e-mail message, or write to the Hoshizaki Technical Support Department for assistance.

Phone: 1-800-233-1940; (770) 487-2331 Fax: 1-800-843-1056; (770) 487-3360

E-mail: techsupport@hoshizaki.com

HOSHIZAKI AMERICA, INC. 618 Highway 74 South Peachtree City, GA 30269 Attn: Hoshizaki Technical Support Department

Web Site: www.hoshizaki.com

NOTE: To expedite assistance, all correspondence/communication MUST include the

following information:

• Model Number

• Serial Number

• Complete and detailed explanation of the problem.

Page 3

IMPORTANT

This manual should be read carefully before the appliance is serviced. Read the warnings and guidelines contained in this manual carefully as they provide essential information for the continued safe use, service, and maintenance of the appliance. Retain this manual for any further reference that may be necessary.

CONTENTS

Important Safety Information ................................................................................................. 6

I. Construction and Water/Refrigeration Circuit Diagram ....................................................... 8

A. KM Construction............................................................................................................ 8

1. Air-Cooled Models (SAH/3) ...................................................................................... 8

2. Water-Cooled Models (SWH/3/-M) .......................................................................... 9

3. Remote Models (SRH/3) ....................................................................................... 10

B. KMH Construction ........................................................................................................11

1. Water-Cooled Models (SWH/3) ...............................................................................11

2. Remote Models (SRH/3) ....................................................................................... 12

C. Bin Control .................................................................................................................. 13

1a. Single Thermostatic Bin Control .......................................................................... 13

1b. Stacked Thermostatic Bin Control ....................................................................... 13

2a. Single Mechanical Bin Control............................................................................. 14

2b. Stacked Mechanical Bin Control .......................................................................... 14

D. Water/Refrigeration Circuit Diagram ............................................................................ 15

1. Air-Cooled Models (SAH/3) .................................................................................... 15

2. Water-Cooled Models (SWH/3/-M) ........................................................................ 16

3a. Remote Models (SRH/3) Except KM-2500SRH3 ................................................ 17

3b. Remote Models (SRH3) KM-2500SRH3 ............................................................. 18

II. Sequence of Operation and Service Diagnosis ............................................................... 19

A. Sequence of Operation Flow Chart ............................................................................. 19

1. "E" and "G" Control Board without Harvest Pump Timer Operation ....................... 19

2. "G" Control Board with Harvest Pump Timer Operation ....................................... 20

3a. Thermostatic Bin Control Shutdown .................................................................... 21

3b. Mechanical Bin Control Shutdown ....................................................................... 22

B. Service Diagnosis ....................................................................................................... 23

1. "E" and "G" Control Board without Harvest Pump Timer Diagnosis ....................... 24

2. "G" Control Board with Harvest Pump Timer Diagnosis ........................................ 29

C. Control Board Check ................................................................................................... 35

D. Bin Control Check ....................................................................................................... 36

1. Thermostatic Bin Control Check ............................................................................. 36

2. Mechanical Bin Control Check ............................................................................... 37

E. Float Switch Check and Cleaning ............................................................................... 39

1. Float Switch Check ................................................................................................ 39

2. Float Switch Cleaning ............................................................................................ 40

F. Thermistor Check ......................................................................................................... 41

G. Diagnostic Tables ........................................................................................................ 42

Page 4

III. Controls and Adjustments ............................................................................................... 46

A. Control Board Layout .................................................................................................. 47

1. "E" Control Board .................................................................................................. 47

2. "G" Control Board ................................................................................................. 48

B. LED Lights and Audible Alarm Safeties ....................................................................... 49

1. "E" Control Board .................................................................................................. 49

2. "G" Control Board ................................................................................................. 50

C. Settings and Adjustments ............................................................................................ 51

1. Default Dip Switch Settings .................................................................................... 51

a) "E" and "G" Control Board without Harvest Pump Timer Operation ................. 51

b) "G" Control Board with Harvest Pump Timer Operation ................................... 52

c) "G" Control Board S5 Dip Switch ..................................................................... 52

2. Harvest Timer (S4 dip switch 1 & 2) ...................................................................... 52

3. Pump-Out Timer (S4 dip switch 3 & 4) .................................................................. 53

4. Pump-Out Frequency Control (S4 dip switch 5 & 6) .............................................. 54

5. Bin Control Selector or Harvest Pump Timer Operation (S4 dip switch 7) ............. 54

a) Bin Control Selector: "E" Control Board ............................................................ 54

b) Harvest Pump Timer: "G" Control Board ........................................................... 55

6. Factory Use (S4 dip switch 8) ................................................................................ 55

7. Freeze Timer (S4 dip switch 9 & 10) ....................................................................... 55

8. Float Switch Selector (S5 dip switch 1): "G" Control Board ................................... 56

9. Rell Counter (S5 dip switch 2 through 5): "G" Control Board ............................... 56

D. Control Switch ............................................................................................................. 56

IV. Refrigeration Circuit and Component Service Information.............................................. 57

A. Refrigeration Circuit Service Information .................................................................... 57

B. Component Service Information .................................................................................. 60

C. Water Regulating Valve Adjustment (water-cooled models) ........................................ 61

V. Maintenance .................................................................................................................... 62

VI. Preparing the Icemaker for Periods of Non-Use ............................................................. 63

VII. Disposal ......................................................................................................................... 65

VIII. Technical Information .................................................................................................... 66

A. Specication and Performance Data ........................................................................... 66

1. KM-1301SAH ......................................................................................................... 66

2. KM-1301SAH3 ....................................................................................................... 67

3. KM-1301SWH ....................................................................................................... 68

4. KM-1301SWH3 ..................................................................................................... 69

5. KM-1301SRH with URC-14F ................................................................................. 70

6. KM-1301SRH3 with URC-14F ............................................................................... 71

7. KM-1400SWH-M .................................................................................................... 72

8. KM-1400SWH3-M ................................................................................................. 73

9. KM-1601SAH ..........................................................................................................74

10. KM-1601SAH3 ..................................................................................................... 75

11. KM-1601SWH ....................................................................................................... 76

12. KM-1601SWH3 .................................................................................................... 77

13. KM-1601SRH with URC-21F Auxiliary Codes: R-0, R-1, and some S-1 .............. 78

14. KM-1601SRH with URC-21F Auxiliary Codes: some S-1 and S-2 and Later ...... 79

15. KM-1601SRH with URC-22F Auxiliary Codes: S-2 and Later .............................. 80

Page 5

16. KM-1601SRH3 with URC-21F Auxiliary Codes: R-0, R-1, and some S-1 ............ 81

17. KM-1601SRH3 with URC-21F Auxiliary Codes: some S-1 and S-2 and Later ..... 82

18. KM-1601SRH3 with URC-22F Auxiliary Codes: S-2 and Later ............................ 83

19. KM-1900SAH ....................................................................................................... 84

20. KM-1900SAH3 ..................................................................................................... 85

21. KM-1900SWH ...................................................................................................... 86

22. KM-1900SWH3 .................................................................................................... 87

23. KM-1900SRH with URC-21F ............................................................................... 88

24. KM-1900SRH with URC-22F ............................................................................... 89

25. KM-1900SRH3 with URC-21F ............................................................................. 90

26. KM-1900SRH3 with URC-22F ............................................................................. 91

27. KM-2100SWH3 .................................................................................................... 92

28. KM-2100SRH3 with URC-22F ............................................................................. 93

29. KM-2500SWH3 ................................................................................................... 94

30. KM-2500SRH3 with URC-23F ............................................................................. 95

31. KMH-2000SWH ................................................................................................... 96

32. KMH-2000SWH3 ................................................................................................. 97

33. KMH-2000SRH with URC-22F ............................................................................ 98

34. KMH-2000SRH3 with URC-22F .......................................................................... 99

B. Wiring Diagrams ........................................................................................................ 100

1. "E" and "G" Control Board Schematics without Harvest Pump Timer Relays ..... 100

a) KM-1601SWH, KM-1601SRH, KM-1900S_H, KMH-2000S_H ........................ 100

b) KM-1601SWH3, KM-1601SRH3, KM-1900S_H3, KM-2100S_H3,

KM-2500S_H3, KMH-2000S_H3 .....................................................................101

2. "G" Control Board Schematics with Harvest Pump Timer Relays ....................... 102

a) KM-1301S_H T-0, U-0 ..................................................................................... 102

b) KM-1301S_H U-1 to D-0 ................................................................................. 103

c) KM-1301SAH and KM-1301SWH D-1 to E-1................................................... 104

d) KM-1301SRH D-1 to E-0 ................................................................................. 105

e) KM-1301SRH E-1 and Later ........................................................................... 106

f) KM-1400SWH-M .............................................................................................. 107

g) KM-1601SAH E-0 and Earlier ......................................................................... 108

h) KM-1601SAH E-1 and Later ........................................................................... 109

i) KM-1301S_H3 T-0, U-0 .....................................................................................110

j) KM-1301S_H3 U-1 to E-0 and KM-1601SAH3 A-0 to E-0 ................................. 111

k) KM-1301S_H3 E-1 and KM-1601SAH3 E-1 and Later ..................................... 112

l) KM-1400SWH3-M .............................................................................................113

Page 6

Important Safety Information

Throughout this manual, notices appear to bring your attention to situations which could result in death, serious injury, damage to the appliance, or damage to property.

WARNING Indicates a hazardous situation which could result in death or

serious injury.

NOTICE Indicates a situation which could result in damage to the

appliance or property.

IMPORTANT Indicates important information about the use and care of the

appliance.

WARNING

The appliance should be destined only to the use for which it has been expressly conceived. Any other use should be considered improper and therefore dangerous. The manufacturer cannot be held responsible for injury or damage resulting from improper, incorrect, and unreasonable use. Failure to service and maintain the appliance in accordance with this manual will adversely affect safety, performance, component life, and warranty coverage and may result in costly water damage.

To reduce the risk of death, electric shock, serious injury, or re, follow basic precautions including the following:

• Only qualied service technicians should install and service this appliance.

• The appliance must be installed in accordance with applicable national, state, and local codes and regulations. Failure to meet these code requirements could result in death, electric shock, serious injury, re, or damage to the appliance.

• Electrical connection must be hard-wired and must meet national, state, and local electrical code requirements. Failure to meet these code requirements could result in death, electric shock, serious injury, re, or damage.

• The icemaker requires an independent power supply of proper capacity. See the nameplate for electrical specications. Failure to use an independent power supply of proper capacity can result in a tripped breaker, blown fuse, damage to existing wiring, or component failure. This could lead to heat generation or re.

• THE ICEMAKER MUST BE GROUNDED. Failure to properly ground the icemaker could result in death or serious injury.

• To reduce the risk of electric shock, do not touch the control switch with damp hands.

• Move the control switch to the "OFF" position and turn off the power supply before servicing. Lockout/Tagout to prevent the power supply from being turned back on inadvertently.

• Do not make any alterations to the appliance. Alterations could result in electric shock, serious injury, re, or damage.

Page 7

WARNING, continued

• The appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless 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 the appliance.

• Do not climb, stand, or hang on the appliance or allow children or animals to do so. Serious injury could occur or the appliance could be damaged.

• Do not use combustible spray or place volatile or ammable substances near the appliance. They might catch re.

• Keep the area around the appliance clean. Dirt, dust, or insects in the appliance could cause harm to individuals or damage to the appliance.

Additional Warning for Remote Models

• THE REMOTE CONDENSER UNIT MUST BE GROUNDED. The power supply and ground connection to the remote condenser unit are supplied from the icemaker. Failure to properly ground the remote condenser unit could result in death or serious injury.

• Wire routing (conduit) and disconnect (if required) must meet national, state, and local electrical code requirements. Failure to meet these code requirements could result in death, electric shock, serious injury, re, or damage.

• Move the icemaker control switch to the "OFF" position and turn off the power supply to the icemaker before servicing the remote condenser unit. Lockout/Tagout to prevent the power supply from being turned back on inadvertently.

NOTICE

• Follow the instructions in this manual carefully to reduce the risk of costly water damage.

• In areas where water damage is a concern, install in a contained area with a oor drain.

• Install the appliance in a location that stays above freezing. Normal operating ambient temperature must be within 45°F to 100°F (7°C to 38°C).

• Do not leave the appliance on during extended periods of non-use, extended absences, or in sub-freezing temperatures. To properly prepare the appliance for these occasions, follow the instructions in "VI. Preparing the Icemaker for Periods of Non-Use."

• Do not place objects on top of the appliance.

• The dispenser unit/ice storage bin is for ice use only. Do not store anything else in the dispenser unit/ice storage bin.

Page 8

I. Construction and Water/Refrigeration Circuit Diagram

A. KM Construction

1. Air-Cooled Models (SAH/3)

Evaporator Assembly

Cleaning Valve

Check Valve (water)

Water Pump

Inlet Water Valve

Spray Tubes

Low-Side Service Valve

High-Side Service Valve

Thermostatic Expansion Valves

Water Supply Inlet

Junction Box

Hot Gas Valve

Check Valves (refrigeration)

Condenser

Control Box

Fan Blade

Float Switch

Compressor

Thermostatic Bin Control

Control Switch

Model Shown: KM-1301SAH3

Fan Motor

Drier

Liquid Line Valve

Transformer Box (KM-1301SAH Auxiliary Code D-1 and Later and All 3 phase model)

High-Pressure Switch

Page 9

2. Water-Cooled Models (SWH/3/-M)

Evaporator Assembly

Cleaning Valve

Check Valve (water)

Water Pump

Float Switch

Inlet Water Valve

Compressor

Spray Tubes

Low-Side Service Valve

High-Side Service Valve

Thermostatic Expansion Valves

Water Supply Inlet

Junction Box

Hot Gas Valve

Check Valves (refrigeration)

Water-Cooled Condenser

Water Regulating Valve

Bin Control Thermostat

Control Switch

Transformer Box (KM-1301SWH Auxiliary Code D-1 and Later and All 3 phase model)

Model Shown: KM-1301SWH3

Drier

Control Box

Liquid Line Valve

Page 10

3. Remote Models (SRH/3)

Evaporator Assembly

Cleaning Valve

Check Valve (water)

Water Pump

Inlet Water Valve

Float Switch

Spray Tubes

Low-Side Service Valve

High-Side Service Valve

High-Side Liquid Service Valve

Water Supply Inlet

Hot Gas Valve

Junction Boxes

Check Valves (refrigeration)

Thermostatic Expansion Valves

Receiver

Control Box

Compressor

Bin Control Thermostat

Note: KM-2500SRH3 Includes Headmaster (C.P.R.)

Control Switch

Transformer Box (KM-1301SRH Auxiliary Code D-1 and Later and All 3 phase model)

Model Shown: KM-1301SRH3

Access Valve

Drier

Liquid Line Valve

Page 11

B. KMH Construction

1. Water-Cooled Models (SWH/3)

Spray Tubes

Evaporator Assembly

Cleaning Valve

Check Valve (water)

Water Pump

Float Switch

Low-Side Service Valve

Inlet Water Valve

High-Side Service Valve

Thermostatic Expansion Valves

Check Valves (refrigeration)

Transformer Box (3 phase model)

Control Box

Control Switch

Bin Control Thermostat

Model Shown: KMH-2000SWH3

High-Pressure Switch

Junction Box

Water Supply Inlet

Hot Gas Valve

Liquid Line Valve

Compressor

Drier

Model Shown: KMH-2000SWH3

Water Regulating Valve

Water-Cooled Condenser

Page 12

2. Remote Models (SRH/3)

Spray Tubes

Inlet Water Valve

Thermostatic Expansion Valves

Evaporator Assembly

Cleaning Valve

Check Valve (water)

Water Pump

Float Switch

Low-Side Service Valve

Model Shown: KMH-2000SRH3

Check Valves (refrigeration)

High-Side Service Valve

Transformer Box (3 phase model)

Control Box

Control Switch

Bin Control Thermostat

High-Pressure Switch

Junction Box

Water Supply Inlet

Hot Gas Valve

Liquid Line Valve

Compressor

Drier

Model Shown: KMH-2000SRH3

Receiver

Page 13

C. Bin Control

1a. Single Thermostatic Bin Control

Bin Control Bulb Holder C

Bin Control Bulb Holder E Bin Control Bulb Holder F Bin Control Bulb Holder G Spacer

Bin Control Extension Bracket

Z Bracket Used for Hoshizaki B-1300, B-1500, B-1650, and Non-Hoshizaki Ice Stoarage Bin

1b. Stacked Thermostatic Bin Control

Upper Bin Control Bulb Holder

Lower Bin Control Bulb Holder

Bin Control Bulb Holder C

Silicone Hose

Bin Control Bulb Holder

Bin Control Bulb Holder E Bin Control Bulb Holder F Bin Control Bulb Holder G Spacer

Bin Control Extension Bracket

Z Bracket Used for Hoshizaki B-1300, B-1500, B-1650, and Non-Hoshizaki Ice Stoarage Bin

Silicone Hose

Upper Bin Control Bulb Holder

Lower Bin Control Bulb Holder

Page 14

2a. Single Mechanical Bin Control

Mechanical Bin Control Connection Overview

Wire Harness Connector B (for upper unit)

Thumbscrews

Bin Control Cable Connector to Wire Harness Connector A

Wire Harness

Control Board Red K4 Connector

Bin Control Bracket

Bin Control Assembly

Bin Control Cable

2b. Stacked Mechanical Bin Control

Wire Saddle

Bin Control Cable Bracket

Wire Harness Connector B (for upper unit)

Bin Control Cable Connector

Connection Detail

Wire Harness Connector A

Control Board Red K4 Connector

Upper Unit Connection Overview

Lower Unit Wire Harness Connector B to

Upper Unit Wire Harness Connector A Upper Unit Wire Harness Connector B (not used)

Bin Control Cable Bracket

Upper Unit Wire Harness

Control Board Red K4 Connector

Lower Unit Wire Harness

Wire Saddle

Control Board Red K4 Connector

Upper Unit Connection Detail

Upper Unit Wire Harness Connector B (not used)

Lower Unit Wire Harness Connector B

See "II.D.1. Dispenser Unit/Ice Storage Bin and Icemaker Setup" and "II.D.2. Bin Control Installation" for the Lower Unit Connection

Upper Unit Wire Harness Connector A

Control Board Red K4 Connector

Page 15

D. Water/Refrigeration Circuit Diagram

1. Air-Cooled Models (SAH/3)

Hot Gas

Val ve

High-Pressure

Switch

Check

Valves

Strainer

Drier

Suction Line

Fan

Condenser

Water Supply

Inlet Water Valve

Spray Tubes

Cleaning Valve

Liquid Line

Thermistor

Val ve

Heat Exchanger

Service

Val ve

Service

Val ve

Float Switch

Check Valve

Discharge Line

Compressor

Thermostatic Expansion Valves

Drain

Water Pump

Pump-Out

Spray Tubes

Evaporator

Water

Tank

Freeze/Harvest

Pump Timer

Refrigeration Circuit

Water Circuit

Page 16

2. Water-Cooled Models (SWH/3/-M)

Check

Valves

Water Regulating Valve

Drain/Return

Condenser

Water Supply

High-Pressure

Switch

Hot Gas

Val ve

Strainer

Drier

Service

Val ve

Discharge Line

Suction Line

Liquid Line

Val ve

Service

Val ve

Compressor

Thermostatic Expansion Valves

Heat Exchanger

Thermistor

Cleaning Valve

Float Switch

Drain

Water Supply

Inlet Water Valve

Spray Tubes

Check Valve

Water Pump

Pump-Out

Evaporator

Freeze/Harvest

Pump Timer

Water

Tank

Refrigeration Circuit

Water Circuit

Spray Tubes

Page 17

3a. Remote Models (SRH/3) Except KM-2500SRH3

Condenser Unit with Headmaster (CPR)

Check

Valves

Hot Gas

Service

Val ve

Fusible Plug

High Pressure

Switch

Val ve

Strainer

KM-2500SRH3: Headmaster

located in icemaker

Condenser

Water

Service

Val ve

Suction Line

Receiver

Drier

Headmaster

(C.P.R.)

Service

Liquid Line

Val ve

Fan

Thermistor

Cleaning Valve

Supply

Inlet Water Valve

Heat Exchanger

Val ve

Float Switch

Check Valve

Discharge Line

Compressor

Expansion Valves

Drain

Water Pump

Spray Tubes

Evaporator

Water

Tank

Pump-Out

Freeze/Harvest

Pump Timer

Refrigeration Circuit

Water Circuit

Page 18

3b. Remote Models (SRH3) KM-2500SRH3

Condenser Unit without Headmaster (CPR)

Shut-Off Valve

(Factory Use Only)

High-Pressure

Switch

Strainer

Fusible Plug

Hot Gas

Val ve

Check

Valves

Condenser

Water

Supply

Fan

Spray Tubes

Receiver

Service Valve

Liquid Line

Evaporator

Val ve

Thermistor

Cleaning Valve

Drier

Headmaster

(C.P.R.)

Inlet Water Valve

Suction Line

Service Valve

Service

Val ve

Discharge Line

Compressor

Drain

Check Valve

Water

Tank

Expansion Valves

Float Switch

Pump-Out

Freeze

Water Pump

Refrigeration Circuit

Water Circuit

Page 19

II. Sequence of Operation and Service Diagnosis

A. Sequence of Operation Flow Chart

1. "E" and "G" Control Board without Harvest Pump Timer Operation

10th cycle

(S4 dip switch 5 & 6)

2 sec., then reverses

for 10/20 sec. (S4 dip

• Factory set for every

4. Pump-Out Cycle

• Pump motor stops for

switch 3 & 4)

FS in control

Comp continues

FMR continues

HGV energized

FS opens or

freeze timer

terminates

PM de-energizes for 2 sec.,

then reverses for 10/20 sec.

FM de-energized

LLV de-energized

3. Freeze Cycle

2. Harvest Cycle

• Min. freeze time: 5 min.

• Max. freeze time: freeze timer

• Max. WV time: 6 min.

• Max. harvest time: 20 min.

setting

(S4 dip switch 9 & 10)

5-min. timer in

control

1 to 3-min. harvest

timer in control

(S4 dip switch 1 & 2)

Thermistor

in control

FS closed

FS check

Thermistor temperature

FS closed

FS check

Comp continues

FMR continues

reaches 48°F (9°C)

(3.9kΩ or less). Harvest

Comp energized

FMR energized

FM energized

LLV energized

FS open

timer starts (1 to 3 min.).

HGV energized

WV energized

FS open

PM energized

HGV de-energized

WV de-energized

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

The "WASH" position on the control switch is used when cleaning and sanitizing the icemaker. When in the "WASH"

position, power is supplied to the pump motor. With the cleaning valve closed, the cleaner and sanitizer ow over the

outside of the evaporator plate assembly. With the cleaning valve open, the cleaner and sanitizer ow over both the

outside and the inside of the evaporator plate assembly.

Note: Close the cleaning valve after cleaning and sanitizing are complete, otherwise the icemaker will not restart

when the control switch is placed in the "ICE" position.

Startup

WV energized

If FS is open, Comp stops and cycle returns to 1-min. ll.

Legend:

BC–bin control

Comp–compressor

FM–fan motor

FMR–fan motor-remote

FS–oat switch

HGV–hot gas valve

LLV–liquid line valve

PM–pump motor

WV–inlet water valve

1. 1-Minute

Fill Cycle

"E" and "G" Control Board without Harvest Pump Timer Operation Flow Chart

Cycle

Steps

Page 20

2. "G" Control Board with Harvest Pump Timer Operation

10th cycle

(S4 dip switch 5 & 6)

2 sec., then reverses

for 10/20 sec.

• Factory set for every

4. Pump-Out Cycle

• Pump motor stops for

(S4 dip switch 3 & 4)

FS in control

Comp continues

FMR continues

HGV energized

FS opens or

freeze timer

terminates

PM de-energizes for 2 sec.,

then reverses for 10/20 sec.

FM de-energized

(FM continues on KM-1601SAH)

LLV de-energized

50 sec.

Timer

FS closed

Comp continues

FS check

PM energized

WV de-energized

FS closed

Comp energized

FS check

WV energized

FM continues

FMR continues

Thermistor temperature

reaches 48°F (9°C)

FMR energized

HGV energized

FS open

(3.9 kΩ or less).

PM continues

WV energized

LLV energized

FS open

Harvest timer starts.

HGV de-energized

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

The "WASH" position on the control switch is used when cleaning and sanitizing the unit. When in the "WASH" position,

power is supplied to the pump motor. With the cleaning valve closed, the cleaner and sanitizer ow over the outside of the

evaporator plate assembly. With the cleaning valve open, the cleaner and sanitizer ow over both the outside and the inside

of the evaporator plate assembly.

Note: Close the cleaning valve after cleaning and sanitizing are complete, otherwise the unit will not restart when the control

switch is placed in the "ICE" position.

If FS is open, Comp stops and cycle returns to 1-Min. ll.

(S4 dip switch 9 & 10)

• Min. freeze time: 5 min.

• Max. freeze time: freeze timer setting

3. Freeze Cycle

"G" Control Board with Harvest Pump Timer Operation Flow Chart

2. Harvest Cycle

1. 1-Minute

sec. (S4 dip switch 7), whichever is shorter. Do not

• WV time: 6 min. or the length of harvest minus 50

Fill Cycle

adjust S4 dip switch 7 out of the factory position.

• Max. harvest time: 20 min.

5-min. timer

in control

1 to 3-min. harvest timer in

control (S4 dip switch 1 & 2)

Thermistor

in control

Harvest Pump

Legend:

BC–bin control

Comp–compressor

FM–fan motor

FMR–fan motor-remote

FS–oat switch

HGV–hot gas valve

LLV–liquid line valve

PM–pump motor

Cycle

Steps

Startup

WV–inlet water valve

Page 21

3a. Thermostatic Bin Control Shutdown

To 1. 1-Minute Fill Cycle

3. Ice Level Lowered

No ice touching TBC bulb.

Icemaker starts at

"1. 1-Minute Fill Cycle."

2. Icemaker Off

1. Bin Full

Shutdown

TBC closed

All components

de-energized.

TBC open

All components

de-energized

NOTE: "G" control board green "BC CLOSED" LED

on continuously when the K4 jumper is in place.

Within 10 sec. after ice contacts

TBC bulb, icemaker shuts down.

Ice contacts TBC bulb

TBC

and Restart

Operation

"E" and "G" Control Board with Thermostatic Bin Control Shutdown Sequence Flow Chart

Legend:

BC–bin control

TBC–themostatic bin control

Page 22

3b. Mechanical Bin Control Shutdown

Icemaker starts at

"1. 1-Minute Fill Cycle."

3. Ice Level Lowered

To 1. 1-Minute Fill Cycle

MBC closed

(MBC actuator paddle disengaged)

Green "BC CLOSED" LED on

Yellow "BC OPEN" LED off

2. Icemaker Off

All components

de-energized.

Yellow "BC OPEN" LED continues.

All components de-energized.

to 15 sec. into the freeze cycle if

activated at the end of the harvest cycle.

15 sec. before the 5-min. short cycle

• Fill Cycle–15 sec. after activation.

• Harvest Cycle–At the end of the harvest cycle, or up

"G" Control Board Mechanical Bin Control Shutdown Sequence Flow Chart

1. Bin Full

Shutdown Delay:

protection timer terminates.

• Freeze Cycle– 15 sec. after activation if activated at least

Otherwise, at the end of the next harvest cycle.

MBC open (MBC actuator paddle engaged)

Green "BC CLOSED" LED off

Yellow "BC OPEN" LED on

Shutdown

Legend:

BC–bin control

MBC

and Restart

Operation

MBC–mechanical bin control

Page 23

B. Service Diagnosis

WARNING

• The appliance should be diagnosed and repaired only by qualied service personnel to reduce the risk of death, electric shock, serious injury, or re.

• Risk of electric shock. Control switch in "OFF" position does not de-energize all loads Use extreme caution and exercise safe electrical practices.

• Moving parts (e.g., fan blade) can crush and cut. Keep hands clear.

• Before servicing the appliance, move the control switch to the "OFF" position and turn off the power supply.

• CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are securely in place after the appliance is serviced. Make sure that none have fallen into the dispenser unit/ice storage bin.

• Make sure all food zones in the appliance and dispenser unit/ice storage bin are clean after service.

The diagnostic procedure is a sequence check that allows you to diagnose the electrical system and components. Before proceeding, check for correct installation, proper voltage per nameplate, and adequate water supply. Check CB using the steps in "II.C. Control Board Check." Check dip switch settings to assure that S4 dip switch 3, 4, 7, 8, 9, 10 and S5 dip switch 1 through 5 ("G" CB) are in the factory default position. S4 dip switch 1, 2, 5, 6 are cleaning adjustments and the settings are exible. For factory default settings, see "III.C.1. Default Dip Switch Settings."

Note: • When checking high voltage (115VAC), always choose a white (W) neutral wire to

establish a good neutral connection.

• On models with a main transformer, the neutral (W) is provided through MT. To conrm a good neutral, check for 60VAC from white (W) neutral to ground (GND). If 60VAC is present, neutral 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 from the CB K1 connector (10 pin connector), pull CB K1connector out slightly to allow room for multimeter test leads contact.

1) Turn off the power supply, then access the control box. Move the control switch to the "OFF" position. Clear any ice from TBC.

2) Check that BC is closed and the 115VAC 10A fuse is good.

Page 24

1. "E" and "G" Control Board without Harvest Pump Timer Diagnosis

3) Power On: Turn on the power supply, then move the control switch to the "ICE" position. A 5-sec. delay occurs.

• "E" Control Board: CB red "POWER OK" LED turns on.

• "G" Control Board: CB red "POWER OK" LED and green "BC CLOSED" LEDturn on.

Note: • CB red "POWER" LED remains on unless the 10.5VAC power supply is

interrupted (K2 connector).

• Check CB using the steps in "II.C. Control Board Check."

• "G" CB: If yellow "BC OPEN" LED is on, check that CB red K4jumper is in place.

a) Power On Diagnosis: If CB red "POWER OK" LED is off, conrm closed TBC and

10A fuse is good. If TBC is open, remove ice from bulb and warm bulb in hand. IfTBC does not close, replace TBC. See "II.D. Bin Control Check." Check for 115VAC at control switch #1(BK) to neutral (W) then at control switch #2(P) to neutral (W). If115VAC is present on control switch #1 (BK) and not on control switch #2(P), replace control switch. If 115VAC is present on control switch #2 (P), check for 115VAC at HPS (P) to neutral (W), then HPS (BK) to neutral (W). If115VAC is present at HPS (P) and not at HPS (BK), HPS is open. See HPS Diagnosis below. If115VAC is present at HPS (BK), check for 10.5VAC at CB K2#1 (R) to CB K2#2(R). If10.5VAC is not present, conrm that the cleaning valve interlock switch is closed. Next, check CT continuity. Ifopen, replace CT.

b) HPS Diagnosis: Conrm FM is energized and fan blade turns freely. Conrm

condenser coil is not dirty. Conrm that the location meets installation requirements. See the appliance's instruction manual for details. Conrm there are no restrictions in the refrigeration circuit. Harvest Cycle: HGV, strainer, or check valve. Freeze Cycle: FM, FMR, TXV, HM, LLV, WRV, strainer, check valve, drier, damaged line set or tting, and fan blade for binding. 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.

4) 1-Minute Fill Cycle – LED 4 is on. WV energizes. After 1 min., CB checks for a closed

FS. If FS is closed, harvest cycle begins. If harvest cycle begins (Comp, HGV, and FMR energize), continue to step 5. If FS is open, WV remains energized through additional 1-min. ll cycles until water enters the water tank and FS closes (low water safety protection during initial start up and at the end of each harvest). Diagnosis: Check that water enters the water tank. If not, check that the water supply line shut-off valve is open and screens or external lters are clear. Check for 115VAC at CB K1 #6(O) to neutral(W). If 115VAC is not present, replace CB. If 115VAC is present, and WV does not energize, check for 115VAC at WV. If 115VAC is present, check coil continuity. Ifopen, replace WV. If the water tank lls, but the appliance fails to start harvest (Comp energized), check for open FS. See "II.E. Float Switch Check and Cleaning." If FS is closed and CB fails to start the harvest cycle after 1 min., replace CB.

Page 25

5) Initial Harvest Cycle – LEDs 1, 4, and 2 are on. WV continues. Comp, FMR, and HGV energize. CB monitors the warming of the evaporator via the thermistor located on the suction line. 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). The harvest timer has settings of 60, 90, 120, and 180sec. Thepump-out timer (S4dip switch 3 & 4) acts in place of the harvest timer during cycles with a pump-out (S4 dip switch 5 & 6). WV remains energized during harvest for a maximum of 6min. or the length of harvest, whichever is shorter.

a) Comp Diagnosis: Check that evaporator is warming. Ifnot, conrm that Comp

b) HGV Diagnosis: If Comp is energized and evaporator is not warming, check that

HGV energizes and opens. Check for 115VAC at CB K1 #2 (P) to neutral (W). If115VAC is not present, replace CB. If 115VAC is present, check for 115VAC at HGV coil and check HGV coil continuity. Replace as needed.

c) LLV Diagnosis: Conrm that LLV is de-energized and closed (not bypassing).

Ifenergized, replace CB. If de-energized and bypassing, replace LLV.

d) WRV Diagnosis: Conrm WRV is not leaking by.

e) Initial Harvest Cycle Termination Diagnosis: 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). Check discharge line temperature. For a thermistor check, see "II.F.Thermistor Check." If 1-min. ll cycle starts after harvest timer terminates, check that FS is clean and operating properly. See "II.E. Float Switch Check and Cleaning." If FS is closed, CB proceeds to the next cycle. Ifnot, replace CB.

Note: The min. total time allowed by CB for a complete harvest cycle is 2 min.

Max. harvest time allowed is 20 min.

NOTICE! On models with "G" control board and no harvest pump timer relays, S4dip switch 7 must remain off. Otherwise, PM energizes in reverse direction the last 50 seconds of harvest and empties water from water tank.

6) Freeze Cycle – LED 1 is on. Comp and FMR continue. PM, FM, and LLVenergize. WV and HGV de-energize. Appliance is held in freeze by a 5-min. short cycle protection timer. After 5-min. timer terminates and FSopens, freeze cycle terminates.

a) Freeze Cycle Diagnosis: Conrm Comp and FMR continue. Conrm that PM, FM,

and LLV energize. Conrm WRV opens. Next, conrm WV and HGV de-energize. During the rst 5 min. of freeze, conrm evaporator is cooling. If not, conrm WV de-energized (not leaking by), HGV de-energized (not bypassing), LLV and FM energize, TXV and HM operate correctly, WRV opens, Comp is efficient, and refrigerant charge is correct. See "VIII.A. Specication and Performance Data."

Page 26

b) Comp and FMR Diagnosis: If Comp and FMR de-energize once freeze begins,

check that appliance has not shut off on HPS ("POWER OK" LED off). If so, check "3)b) HPS Diagnosis" above. If "POWER OK" LED is on, check for 115VAC at CB K1#1 (V) or #9 (V) to neutral (W). If 115VAC is not present and LED 1 is on, replace CB. If 115VAC is present, check for 115VAC at CR or MC coil. If 115VAC is present, check CR or MC coil and contact continuity. Replace as needed. If CR or MC is ok, check Comp external overload, start relay, and start and run capacitors. Next, check Comp motor winding continuity. If Comp is energized but evaporator is not cooling, check for an inefficient Comp. See "VIII.A. Specication and Performance Data." If Comp is energized but FMR is not, check for 115VAC at the FMR junction box. If115VAC is not present, check icemaker wiring connections. If 115VAC is present, check for voltage at condenser unit. If115VAC is not present, check eld wiring connections. If 115VAC is present, check FMR capacitor, motor winding, and fan blade for binding.

c) WV and HGV Diagnosis: If WV is energized, check for 115VAC at CB K1 #6 (O) to

neutral (W). If 115VAC is present after PM energizes, replace CB. If 115VAC is not present, replace WV (bypassing). If HGV did not de-energize, check for 115VAC at CB K1 #2 (P) to neutral (W). If 115VAC is present after PM energizes, replace CB. If115VAC is not present, replace HGV (bypassing).

d) PM Diagnosis: Conrm water is owing over evaporator from PM and not WV. If PM

de-energizes once freeze begins, check for 115VAC at CB K1 #4 (R) to neutral (W). If 115VAC is not present, replace CB. If 115VAC is present and PM is de-energized, check for 115VAC at control switch #5 (R) to neutral (W). If 115VAC is present at CB K1 #4 (R) and not at control switch #5 (R), check control switch continuity between #5 (R) and #4 (R). Replace as needed. If 115VAC is present at control switch #5(R) to neutral (W), check PM impeller for binding, PM capacitor, and motor winding continuity.

e) FM and LLV Diagnosis: If FM or LLV does not energize, check for 115VAC at CB

K1#3 (BK) to neutral (W). If 115VAC is not present, replace CB. If 115VAC is present: For FM: check capacitor, motor winding, and blade for binding. For LLV: check coil voltage and continuity.

f) Refrigerant Pressures, HM, and TXV Diagnosis: If evaporator is still not cooling,

check refrigerant pressures. See "VIII.A. Specication and Performance Data." Next, check HM operation. 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 TXV.

g) WRV Diagnosis: WRV is factory set and generally no adjustment is required.

IfWRV fails to open in freeze, check for proper refrigerant pressures. See "VIII.A. Specication and Performance Data." If refrigerant pressures are correct and WRV does not open, adjust or replace as needed. See "IV.C. Water Regulating Valve Adjustment (water-cooled models)."

Page 27

h) Freeze Termination Diagnosis: After 5 min. in freeze, disconnect CB K5 FS

connector. 15 sec. later appliance should switch out of the freeze cycle (15 second delay after FS opens before terminating the freeze cycle). If appliance remains in freeze longer than 15 sec. after FS removed, replace CB. If appliance switches with FS removed but would previously not switch out of freeze with FS connected (long freeze - 3 beep alarm), see "II.E. Float Switch Check and Cleaning."

Note: Normal freeze cycle will last 20 to 40 min. depending on model and conditions.

Cycle times and pressures should follow performance data provided in this manual. See "VIII.A. Specication and Performance Data."

i) Short Freeze Cycle Diagnosis: Conrm water tank lls and overows during 1 min.

ll and harvest cycles. If not, check water supply lters, shut-off valve, WV screen. Ifwater tank empties before 5 min. timer terminates and freeze cycle is short, check that CV is not leaking by (water owing down the potable drain). If CV is leaking by, remove and clean CV, replace rubber seat and spring if necessary. If water tank is full, see "II.E. Float Switch Check and Cleaning" for erratic operating FS.

7) Pump-Out Cycle – LEDs 1, 3, and 2 are on (10/20 second pump-out). Timing of the rst pump-out is dependent on CB. "E" CB rst pump-out is after the rst freeze cycle. "G" CB rst pump-out is determined by S4 dip switch 5 & 6. See the table below.

"E" & "G" Control Board Settings 1st Pump-Out

S4 Dip Switch Setting

No. 5 No. 6

OFF OFF Every cycle After 1st freeze cycle After 2nd freeze cycle

ON OFF Every 2 cycles After 3rd freeze cycle

OFF ON Every 5 cycles After 6th freeze cycle

ON ON Every 10 cycles After 11th freeze cycle

Pump-Out Frequency

"E" Control Board "G" Control Board

Comp and FMR continue, HGV energizes. If S4dip switch 3 & 4 are set to 3 off and 4on, LED 4 turns on and WV energizes. FM and LLVde-energize. PM stops for 2 sec., then reverses for 10/20 sec. depending on pump-out timer (S4 dip switch 3 & 4) setting. When the pump-out timer terminates, pump-out is complete. The pump-out frequency control (S4 dip switch 5 & 6) is factory set, and generally no adjustment is required. However, the pump-out frequency control can be set to have a pump-out occur every cycle, or every 2, 5, or 10 cycles. For details, see "III.C.4. Pump-Out Frequency Control (S4 dip switch 5 & 6)."

Pump-Out Diagnosis: In the freeze cycle before pump-out (see table above), disconnect CB black K5 connector (FS connector) after 5 min. of freeze. Check that PM stops and re-starts and water is owing down the drain through CV. If PM does not stop and re-start, check that CB LEDs 1, 3, and 2 are on. If not, replace CB. IfLEDs1,3, and 2 are on and PM does not energize, check for 115VAC at CB K1 #5 (DBU) to neutral (W). If 115VAC is not present, replace CB. If 115VAC is present, make sure the drain line is not clogged and that CV is clean and operating properly.

Conrm FM and LLV de-energize. If FM or LLV is energized with LEDs 1, 3, and 2 on, replace CB.

Page 28

8) Normal Harvest Cycle – Same as the initial harvest cycle. Return to step 5 above. Note: Appliance continues to cycle until BC is satised or power is turned off. The

appliance always restarts at the 1-min. ll cycle.

9) Shutdown: "E" and "G" Control Board

default position. This dip switch must be left in the factory default position or the appliance will not operate correctly. "G" Control Board: CB red K4connector must have the jumper in place. When the

jumper is in place, the green "BC CLOSED" LED remains on. If the jumper is not in place, yellow "BC OPEN" LED turns on and the icemaker turns off and remains off until the jumper is replaced in its original position.

Legend: BC–bin control; CB–control board; CR–compressor relay; CT–control transformer;

Comp–compressor; CV–check valve; FM–fan motor; FMR–fan motor-remote; FS–oat switch; HGV–hot gas valve; HM–headmaster (C.P.R.); HPS–high-pressure switch; LLV–liquid line valve; MC–magnetic contactor; MT–main transformer; PM–pump motor; TBC–thermostatic bin control; TXV–thermostatic expansion

valve; WRV–water regulating valve; WV–inlet water valve

Page 29

2. "G" Control Board with Harvest Pump Timer Diagnosis

3) Power On: Turn on the power supply, then move the control switch to the "ICE" position. A 5-sec. delay occurs. CB red "POWER OK" LED and green "BC CLOSED" LED turn on. If yellow "BC OPEN" LED is on, check CB K4 jumper.

Note: • CB red "POWER OK" LED remains on unless the 10.5VAC power supply is

interrupted (K2 connector).

• Check CB using the steps in "II.C. Control Board Check."

• Conrm CB green "BC CLOSED" LED is on. If CB yellow "BC OPEN" LED is on, conrm CB K4 jumper is in place. Otherwise, CB yellow "BC OPEN" LED is on and appliance will not start.

a) Power On Diagnosis: If CB red "POWER OK" LED is off, conrm 10A fuse is good.

Check for 115VAC at control switch #1 (BR or BK) to neutral (W) then at control switch #2(P) to neutral (W). If 115VAC is present on #1 (BR or BK) and not on #2(P), replace control switch. If 115VAC is present on control switch #2 (P), check for 115VAC at HPS (P) to neutral (W) then HPS (BK) to neutral (W). If115VAC is present at HPS (P) and not at HPS (BK), HPS is open. See HPS Diagnosis below. If115VAC is present at HPS (BK), check for 10.5VAC at CB K2#1 red wire to CB K2 #2 red wire. If 10.5VAC is not present, check that the cleaning valve interlock switch is closed. Next, check CT continuity. If open, replace CT.

b) HPS Diagnosis: Conrm FM is energized and fan blade turns freely. Conrm

4) 1-Min. Fill Cycle – LED 4 is on. WV and X11 relay energize. After 1 min., CB checks for a closed FS. If FS is closed, the harvest cycle begins. If harvest cycle begins (Comp, HGV, FMR energized), continue to step 5a. If FS is open, WV remains energized through additional 1-min. ll cycles until water enters the water tank and FS closes (low water safety protection during initial start up and at the end of each harvest). Diagnosis: Check that water enters the water tank. If not, check that the water supply line shut-off valve is open and screens or external lters are clear. Check for 115VAC at CB K1 #6 (O) to neutral (W). If 115VAC is not present, replace CB. If 115VAC is present, and WV does not energize, check for 115VAC at WV. If 115VAC is present, check coil continuity. Ifopen, replace WV. If the water tank lls, but the appliance fails to start harvest (Comp energized), check for open FS. See "II.E. Float Switch Check and Cleaning." If FS is closed and CB fails to start the harvest cycle after 1 min., replace CB.

Page 30

5a) Initial Harvest Cycle – LEDs 1, 4, and 2 are on. WV and X11 relay continue. Comp,

FMR, HGV, and X10 relay energize. CBmonitors the warming of the evaporator via the thermistor located on the suction line. 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). The harvest timer has settings of 60, 90, 120, and 180 sec. The pump-out timer (S4 dip switch 3 & 4) acts in place of the harvest timer during cycles with a pump-out (S4 dip switch 5 & 6). WV and X11 relay are energized during harvest for a maximum of 6 min. or the length of harvest minus 50sec., whichever is shorter. 50sec. before harvest terminates, PM energizes. See step 5b below.

a) Comp Diagnosis: Check that evaporator is warming. Ifnot, conrm that Comp

energizes. If not, check for 115VAC at CB K1 #1 (V) or #9 (V) to neutral (W). If115VAC is not present, check for 115VAC at CB K1 #7 (BR) or #10 (BR) to neutral (W). If115VAC is present at #7 (BR) or #10 (BR) and not at #1 (V) or #9 (V), replace CB. If 115VAC is present, check for 115VAC at CR or MC solenoid. If 115VAC is present, conrm contacts are closed. If not, replace CR or MC. If CR or MC contacts are closed, check Comp external overload, Comp start and run capacitors, Comp start relay, and Comp motor winding. If Comp is energized and evaporator is not warming, check that HGV energizes and opens. Check for 115VAC at CB K1 #2 (P) to a neutral(W). If 115VAC is not present and LED 2 is on, replace CB. If115VAC is present, check coil voltage and continuity. Replace as needed. Conrm that LLV is de-energized and closed (not bypassing). If energized, replace CB. Ifde-energized and bypassing, replace LLV. Conrm WRV is not leaking by. If evaporator is warming, PM energizes for the last 50sec. of harvest.

b) HGV Diagnosis: If Comp is energized and evaporator is not warming, check that

c) LLV Diagnosis: Conrm that LLV is de-energized and closed (not bypassing).

Ifenergized, replace CB. If de-energized and bypassing, replace LLV.

d) WRV Diagnosis: Conrm WRV is not leaking by.

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). 50 sec. before the harvest timer terminates, LED 3turns on and PM energizes. Comp, FMR, HGV, and X10 relay continue. LED 4 turns off, WV and X11 relay de-energize. Diagnosis: Place a thermometer on the suction line next to the thermistor. Has it warmed to 48°F (9°C) or warmer? Conrm thermistor status. See "II.F. Thermistor Check." If the thermistor reading is in proper range, dip switch 7 is on, and PM does not energize 50 sec. before harvest terminates, replace CB. If WV continues, check for 115VAC at CB K1 #6 (O). If115VAC is present, and LED 4 is off, replace CB. If LED 3is on and PM is not energized, check for 115VAC at CB K1 #5(DBU). If115VAC is not present, replace CB. If 115VAC is present and PM is not energized, check for 115VAC at X10relay terminal #7 (Y) to neutral (W). If 115VAC is not present, check for 115VAC at X10 relay terminal #3 (P) to neutral (W) and X10 relay terminal #5 (Y) to neutral (W).

Page 31

If 115VAC is present on terminal #3(P) and not on terminal #5 (Y), replace X10 relay. If 115VAC is present on X10 relay terminal #7 (Y) and PM is not energized, check for 115VAC at X10 relay terminal #4 (R) to neutral (W) and terminal #6 (DBU) to neutral (W). If 115VAC is present on terminal #6(DBU) and not on terminal #4 (R), replace X10 relay. If 115VAC is present on X10relay terminal #4 (R), check control switch contact continuity between terminals #4(R) and #5(R). Ifcontacts are open, replace control switch. If contacts are closed and 115VAC is present between control switch terminal #5 (R) and neutral (W), check PM capacitor and motor winding continuity.

5c) Initial Harvest Cycle Termination Diagnosis: 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). Check discharge line temperature. For a thermistor check, see "II.F.Thermistor Check." If 1-min. ll cycle starts after harvest timer terminates, check that FS is clean and operating properly, see "II.E. Float Switch Check and Cleaning." If FS is closed, CB proceeds to the next cycle. Ifnot, replace CB. Note: The minimum total time allowed by CB for a complete harvest cycle is 2 min.

Maximum harvest time allowed is 20 min.

NOTICE! S4 dip switch 7 must remain on. Otherwise, PM will not energize during the last 50 sec. of harvest.

6) Freeze Cycle – LED 1 is on. Comp, FMR, and PM continue. FM and LLV energize. HGV and X10 relay de-energize. Appliance is held in freeze by a 5-min. short cycle protection timer. After 5-min. timer terminates and FS opens, freeze cycle terminates. Note: PM power supply switches from CBK1 #5(DBU) in harvest to K1 #4 (R) in freeze.

a) Freeze Cycle Diagnosis: Conrm Comp, FMR, and PM continue. Conrm that

FM and LLV energize. Conrm WRV opens. Next, conrm HGV and X10 relay de-energize. During the rst 5 min. of freeze, conrm evaporator is cooling. If not, conrm WV de-energized (not leaking by), HGV de-energized (not bypassing), LLV and FM energize, TXV and HM operate correctly, WRV opens, Comp is efficient, and refrigerant charge is correct. See "VIII.A. Specication and Performance Data."

b) Comp and FMR Diagnosis: If Comp and FMR de-energize once freeze begins,

check that appliance has not shut off on HPS ("POWER OK" LED off). If so, check "3)b) HPS Diagnosis" above. If "POWER OK" LED is on, check for 115VAC at CB K1 #1 (V) or #9 (V) to neutral (W). If 115VAC is not present and LED 1 is on, replace CB. If 115VAC is present, check for 115VAC at CR or MC coil. If 115VAC is present, check CR or MC coil and contact continuity. Replace as needed. If CR or MC is okay, check Comp start relay and start and run capacitors. Next, check Comp motor winding continuity. If Comp is energized but evaporator is not cooling, check for an inefficient Comp. See "VIII.A. Specication and Performance Data." If Comp is energized but FMR is not, check for 115VAC at the FMR junction box. If 115VAC is not present, check icemaker wiring connections. If 115VAC is present, check for voltage at condenser unit. If115VAC is not present, check eld wiring connections. If 115VAC is present, check FMR capacitor, motor winding, and fan blade for binding.

Page 32

c) WV and HGV Diagnosis: If WV is energized, check for 115VAC at CB K1 #6 (O) to

neutral (W). If 115VAC is present after PM energizes in harvest cycle, replace CB. If 115VAC is not present, replace WV (bypassing). If HGV did not de-energize at the end of harvest, check for 115VAC at CB K1 #2 (P) to neutral (W). If 115VAC is present 50 sec. after PM energizes, replace CB. If 115VAC is not present, replace HGV (bypassing).

d) PM Diagnosis: Conrm water is owing over evaporator from PM and not WV. If PM

de-energizes once freeze begins, check for 115VAC at CB K1 #4 (R) to neutral (W). If 115VAC is not present, replace CB. If 115VAC is present and PM is de-energized, check for 115VAC at control switch #5 (R) to neutral (W). If 115VAC is present at CB K1 #4 (R) and not at control switch #5 (R), check control switch continuity between #5 (R) and #4 (R). Replace as needed. If 115VAC is present at control switch #5 (R) to neutral (W), check PM capacitor and motor winding continuity.

e) FM and LLV Diagnosis: If FM or LLV does not energize, check for 115VAC at CB

K1#3 (BK) to neutral (W). If 115VAC is not present, replace CB. If 115VAC is present: For FM, check capacitor, motor winding, and blade for binding. For LLV, check coil voltage and continuity.

f) Refrigerant Pressures, HM, and TXV Diagnosis: If evaporator is still not cooling,

g) WRV Diagnosis: WRV is factory set and generally no adjustment is required.

h) Freeze Termination Diagnosis: After 5 min. in freeze, disconnect CB K5 FS

Note: Normal freeze cycle will last 20 to 40 min. depending on model and conditions.

Cycle times and pressures should follow performance data provided in this manual. See "VIII.A. Specication and Performance Data."

i) Short Freeze Cycle Diagnosis: Conrm water tank lls and overows during 1 min.

Page 33

7) Pump-Out Cycle – LEDs 1, 3, and 2 are on (10/20 second pump-out). Timing of the rst pump-out is determined by S4 dip switch 5& 6. See the table below.

"G" Control Board Settings

S4 Dip Switch Setting

No. 5 No. 6

OFF OFF Every cycle After 2nd freeze cycle

ON OFF Every 2 cycles After 3rd freeze cycle

OFF ON Every 5 cycles After 6th freeze cycle

ON ON Every 10 cycles After 11th freeze cycle

Pump-Out

Frequency

1st Pump-Out

"G" Control Board

Comp and FMR continue, HGV energizes. If S4dip switch 3 & 4 are set to 3 off and 4 on, LED 4 turns on and WV and X11 relay energize, energizing X10relay.

NOTICE!S4dip switch 3 & 4 must not be set to 3 off and 4 on. Otherwise, PM will rotate in freeze cycle direction instead of pump-out direction. FM and LLV

de-energize. PM stops for 2 sec., then reverses for 10/20 sec. depending on pump-out timer (S4dip switch 3 & 4) setting. When the pump-out timer terminates, pump-out is complete. The pump-out frequency control (S4 dip switch 5 & 6) is factory set, and generally no adjustment is required. However, the pump-out frequency control can be set to have a pump-out occur every cycle, or every 2, 5, or 10 cycles. For details, see "III.C.4. Pump-Out Frequency Control (S4 dip switch 5 & 6)."

Pump-Out Diagnosis: In the freeze cycle before pump-out (see table above), after 5min. of freeze disconnect CB black K5 connector (FS connector). Check that PM stops and re-starts and that PM rotation is correct (water owing down the drain through CV). If PM does not stop and re-start, check that CB LEDs 1, 3, and 2 are on. If not, replace CB. IfLEDs1,3, and 2 are on and PM does not energize, check for 115VAC at CB K1 #5 (DBU) to neutral (W). If 115VAC is not present, replace CB. If 115VAC is present, check that X10 relay is de-energized. If not, check X11 relay status. If X11 relay is energized, replace CB. If X11 relay is de-energized and X10 relay is energized, replace X11 relay (contacts sticking). If X10 relay is de-energized, check for 115VAC at terminal #6 (DBU) to neutral (W) and terminal #2 (DBU) to neutral (W). If 115VAC is present on terminal #6 (DBU) and not on terminal #2 (DBU), replace X10 relay. If PM is energized and rotating in pump-out rotation, make sure the drain line is not clogged and that CV is clean and operating properly.

Conrm FM and LLV de-energize. If FM or LLV are energized with LEDs 1, 3, and 2 on, replace CB.

Page 34

8) Normal Harvest Cycle – Same as the initial harvest cycle. Return to step 5a) above. Note: Appliance continues to cycle until MBC is satised or power is switched off. The

appliance always restarts at the 1-min. ll cycle.

9) Shutdown: "G" Control Board

a) Thermostatic Bin Control (TBC):

When the appliance is running, hold ice in contact with the thermostatic bulb. TBC switch opens within 10 sec., shutting down the appliance. TBC is factory set, and generally no adjustment is required. However, adjustment may be needed in some conditions, particularly at higher altitude locations. Diagnosis: See "II.D.1. Thermostatic Bin Control Check." CB red K4connector must have the jumper in place. When the jumper is in place, the green "BC CLOSED" LED remains on. If the jumper is not in place, yellow "BC OPEN" LED turns on and the icemaker turns off and remains off until the jumper is replaced in its original position. NOTICE! CB red K4 connector jumper (4A4883G01) must be in place.

b) Mechanical Bin Control (MBC):

See "II.D.2. Mechanical Bin Control Check."

Legend: BC–bin control; CB–control board; Comp–compressor; CR–compressor relay;

CT–control transformer; CV–check valve; FM–fan motor; FMR–fan motor remote; FS–oat switch; HGV–hot gas valve; HM–headmaster (C.P.R.); HPS–high-pressure switch; LLV–liquid line valve; MBC–mechanical bin control; MC–magnetic contactor; PM–pump motor; TBC–thermostatic bin control; TXV–thermostatic expansion valve; WRV–water regulating valve; WV–inlet water

valve

Page 35

C. Control Board Check

Before replacing CB that does not show a visible defect and that you suspect is bad, always conduct the following check procedure. This procedure will help you verify your diagnosis.

Alarm Reset: If CB is in alarm (beeping), press the "ALARM RESET" button on CB

while CB is beeping. WARNING!Risk of electric shock. Care should be taken not to touch live terminals. Once reset, the icemaker starts at the 1-minute ll cycle. For audible alarm information, see "III.B. LED Lights and Audible Alarm Safeties."

1) Check the dip switch settings to assure that S4 dip switch 3, 4, 7, 8, 9, 10 and S5 dip switch 1 through 5 ("G" CB) are in the factory default position. S4 dip switch 1, 2, 5,6 are cleaning adjustments and the settings are exible. For factory default settings, see "III.C.1. Default Dip Switch Settings."

2) Move the control switch to the "ICE" position. If the red "POWER OK" LED is on, control voltage is good, continue to step 3. If the "POWER 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, check CT primary circuit. Check

for 115VAC at CB K1 connector pin #10 (BR) to neutral (W) for 115VAC. Always choose a white (W) neutral wire to establish a good neutral connection when checking voltages. For additional checks, see "II.G.1. No Ice Production."

3) The "OUTPUT TEST" button provides a relay sequence test. Make sure the control switch is in the "ICE" position, then press the "OUTPUT TEST" button. For the correct lighting sequence, see the table below. Note that the order of the LEDs from the outer edge of the control board is 1, 4, 3, 2. Components (e.g., compressor) cycle during the test.

Control

Board

"E" 2, 3, 4, 1

"G" 1, 4, 3, 2

Correct LED

Lighting Sequence

Following the test, the icemaker begins operation at the 1-minute ll cycle for both "E" and "G" control boards. If the LEDs do not light as described above, replace CB.

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wire). If output voltage is not found and the appropriate LED is on, replace CB.

Legend: CB–control board; CT–control transformer

Page 36

D. Bin Control Check

1. Thermostatic Bin Control Check

BC shuts down the icemaker within 10 sec. when ice contacts the thermostatic bulb, regardless of the cycle at activation.

NOTICE

When the ambient temperature is below 45°F (7°C), BC opens and shuts down the appliance even if the ice storage bin is empty. When BC is set in the prohibited range, the appliance operates continuously even if the ice storage bin is lled with ice. Setting in the prohibited range may result in severe damage to the appliance.

BC is factory set, and generally no adjustment is required. However, adjustment may be needed in some conditions, particularly at higher altitude locations.

Note: On "G" control boards, a jumper (4A4883G01) must be placed on CB red

K4connector. Otherwise, CB yellow "BC OPEN" LED is on and appliance will not start.

To check BC, follow the steps below.

1) Turn off the power supply.

2) Remove the front panel, then move the control switch to the "OFF" position.

3) Remove the control box cover and base cover, then clear any ice away from BC bulb.

4) Disconnect BC wires from BC switch.

5) Hold your hand around the bulb to warm it up.

6) Check for continuity across BC switch. If closed, continue to step 6. If open, adjust or replace BC.

7) With the multimeter test leads still in place, hold ice on BC bulb to lower the temperature. Within 10 sec., BC switch should open. If it remains closed, adjust or replace BC.

Legend: BC–thermostatic bin control

Page 37

2. Mechanical Bin Control Check

a) Mechanical Bin Control Check

This appliance uses a lever-actuated proximity switch to control the ice level in the storage bin. No adjustment is required.

To check MBC, follow the steps below.

1) Turn off the power supply.

2) Remove the front panel, then move the control switch to the "OFF" position.

3) Remove the control box cover, then clear any ice away from MBC.

4) Check MBC wire harness connections. See Fig. 1.

5) Disconnect MBC connector from CB K4 connector.

6) Check for continuity across the wires of MBC connector. When the actuator paddle

Wire Harness Connector B (for upper unit)

is not engaged, MBC switch is closed. If open, check that the wire harness connector is properly connected and that

Bin Control Cable Connector

the actuator paddle is not sticking. Clean if necessary. See "II.D.2.b) Mechanical Bin Control Cleaning." If MBC switch still reads open, replace MBC.

Fig. 1

Connection Detail

Wire Harness Connector A

Control Board Red K4 Connector

7) Press and hold the actuator paddle; check for continuity across the wires of MBC connector. When the actuator paddle is engaged, MBC switch is open. If closed, check that the actuator paddle is not restricted. Clean if necessary. See "II.D.2.b) Mechanical Bin Control Cleaning." If MBC switch still reads closed, replace MBC.

8) Reconnect MBC 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 on.

10) Allow the icemaker to cycle on. Press and hold the actuator paddle. CB yellow "BCOPEN" LED should turn on and the icemaker should shut down according to the chart below. If it does not, replace CB.

Cycle at Mechanical Bin Control Activation

Fill Cycle 15 sec. after activation.

Harvest Cycle At the end of the harvest cycle, or up to 15 sec. into the freeze cycle if activated at the

Freeze Cycle 15 sec. after activation if activated at least 15 sec. before the 5-min. short cycle

Shutdown

end of the harvest cycle.

protection timer terminates. Otherwise, at the end of the next harvest cycle.

Legend: MBC–mechanical bin control; CB–control board

Page 38

b) Mechanical Bin Control Cleaning

Scale may build up on MBC. Scale can cause the actuator paddle and magnet to stick. In this case, MBC should be cleaned.

WARNING

CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are

securely in place after the icemaker is serviced. Make sure that none have fallen into the dispense unit/ice storage bin.

1) Turn off the power supply.

2) Remove the front panel, then move the control switch to the "OFF" position.

3) Clear any ice away from MBC.

4) Disconnect MBC connector from CB K4 connector, then remove MBC from the icemaker.

5) Remove the actuator paddle from the switch mount. See Fig. 2.

6) Wipe down MBC with a mixture of 1 part of Hoshizaki "Scale Away" and 25 parts of warm water. Rinse the parts thoroughly with clean water.

7) Reassemble MBC and replace it in its correct position. Note: If the magnet was removed for cleaning, be sure to replace it in its correct

position.

8) Reconnect MBC connector to CB K4 connector, then move the control switch to the "ICE" position.

9) Replace the control box cover in its correct position.

10) Turn on the power supply to start the automatic icemaking process.

11) Replace the front panel in its correct position.

Legend: MBC–mechanical bin control

KM-xxxxS_H/3 MBC Bracket

Switch Mount

Actuator Paddle

Bin Control Proximity Switch Closed (calling for ice)

Bin Control Proximity Switch Open (bin full, icemaker off or shutting down)

Magnet

MBC Connector

Fig. 2

Page 39

E. Float Switch Check and Cleaning

FS is used to determine that there is sufficient water in the water tank after the 1-min. ll cycle and after each harvest cycle. FS is also used to determine that the appropriate volume of water has been converted into ice before switching out of the freeze cycle. No adjustment is required.

1. Float Switch Check

To check FS, follow the steps below.

1) Turn off the power supply.

2) Remove the front panel, then move the control switch to the "OFF" position.

3) Remove the insulation panel, then remove the drain plug located on the lower front part of the ice chute. See Fig. 3. Allow the water tank to drain.

4) Replace the drain plug in its correct position. Be careful not to cross thread it.

5) Remove the control box cover.

Drain Plug

Cleaning Valve

6) Disconnect FS connector from CB K5connector.

7) Check for continuity across FS leads. With the water tank empty, FS should be open. If open, continue to step 8. If closed, follow the steps in "II.E.2. Float Switch Cleaning." After cleaning FS, check it again. Replace if necessary.

8) Reconnect FS connector to CB K5 connector, then replace the control box

Ice Chute

Fig. 3

Float Switch Assembly

cover in its correct position.

9) Move the control switch to the "ICE" position. Replace the insulation panel and front panel in their correct positions, then turn on the power supply. After 1 min., the 1-min. ll cycle should end and the initial harvest cycle should begin. If the initial harvest cycle begins, FS is good and the check is complete. If the initial harvest cycle does not begin, continue to step 10.

10) Turn off the power supply.

11) Remove the front panel. Move the control switch to the "OFF" position.

12) Remove the control box cover.

13) Disconnect FS connector from CB K5 connector.

14) Check for continuity across FS leads. With the water tank full, FS should be closed. IfFS is closed and the icemaker will not switch from the 1-min. ll cycle to the initial harvest cycle, replace CB.

If FS is open, conrm that the water tank is full. If the water tank is not full, check the water supply, water lters, and inlet water valve. If the water tank is full, follow the steps in "II.E.2. Float Switch Cleaning." After cleaning FS, check it again. Replace if necessary.

Legend: CB–control board; FS–oat switch

Page 40

2. Float Switch Cleaning

Depending on local water conditions, scale may build up on FS. Scale on the switch can cause the oat to stick. In this case, FS should be cleaned.

1) Turn off the power supply.

2) Remove the front panel, then move the control switch to the "OFF" position.

3) Remove the insulation panel, then remove the drain plug located on the lower front part of the ice chute. See Fig. 3. Allow the water tank to drain.

4) Replace the drain plug in its correct position. Be careful not to cross thread it.

5) Disconnect the vent tube and the ush tube from the top of FS, then remove FS assembly and remove the rubber boot from the bottom of FS assembly. See Fig. 4.

6) Remove the retainer rod from the bottom of FS housing, then remove the oat. Becareful not to bend the retainer rod excessively when removing it.

7) Wipe down FS housing, shaft, oat, and retainer rod with a mixture of 1 part Hoshizaki "Scale Away" and 25 parts warm water. Clean the inside of the rubber boot and hose with cleaning solution. Rinse the parts thoroughly with clean water.

8) Reassemble FS assembly and replace it and the rubber boot in their correct positions. Reconnect the vent tube and the ush tube.

9) Move the control switch to the "ICE" position.

10) Replace the insulation panel and front panel in their correct positions.

11) Turn on the power supply to start the automatic icemaking process.

Legend: CB–control board; FS–oat switch

Vent

Flush

Shaft

Float Switch Housing

Float

Retainer Rod

Rubber Boot and Hose

Fig. 4

Page 41

F. Thermistor Check

To check thermistor resistance, follow the steps below.

1) Turn off the power supply.

2) Remove the front panel. Move the control switch to the "OFF" position.

3) Remove the control box cover.

4) Remove the thermistor from the refrigerant tubing.

5) Immerse the thermistor sensor portion in a glass containing ice and water for 2 or 3 min.

6) Disconnect the thermistor connector from CB K3 connector and check the resistance between thermistor leads. Normal range is 4.7 to 6.2 kΩ. If outside the normal range, replace the thermistor. See "IV.B. Component Service Information." If within the normal range, continue to the next step.

7) Replace the thermistor in its correct position. See "IV.B. Component Service Information."

8) Reconnect the thermistor connector to CB K3 connector.

9) Replace the control box cover in its correct position.

10) Move the control switch to the "ICE" position.

11) Replace the front panel in its correct position.

12) Turn on the power supply.

13) Once the harvest cycle starts (Comp energizes), begin timing the harvest cycle.

14) The harvest timer and harvest cycle should terminate within 2 to 5 min. If the harvest cycle does not terminate within 2 to 5 min., replace CB.

Legend: CB–control board; Comp–compressor

Thermistor Lead Cable Tie

Foam Insulation Thermistor Holder

Fig. 5

Page 42

G. Diagnostic Tables

1. No Ice Production

No Ice Production - Possible Cause

1. Power Supply a) Off, blown fuse, or tripped breaker.

b) Not within specications.

2. Main Transformer (KM-1301S_H auxiliary code D-1 and later and all 3 phase models)

3. Fuse (Control Box) a) Blown.

4. Thermostatic Bin Control See "II.D. Bin Control Check"

5. Control Switch a) In "OFF" or "WASH" position.

6. High-Pressure Switch a) Dirty condenser.

7. Control Transformer (115VAC/10.5VAC)

8. Control Board See "II.C. Control Board Check"

9. Mechanical Bin Control See "II.D. Bin Control Check."

10. Water Supply a) Water supply off or improper water pressure.

11. Inlet Water Valve a) Screen or orice clogged.

12. Float Switch See "II.E. Float Switch Check and Cleaning"

13. Compressor a) Compressor relay/magnetic contactor contacts bad or coil winding

14. Hot Gas Valve a) Closed in harvest cycle.

a) Voltage tap switch not set to proper voltage.

b) Coil winding open or shorted.

a) Tripped with bin lled with ice.

b) Ambient temperature too cool.

c) Set too warm.

d) Bulb out of position.

e) Open contacts, defective.

b) Bad contacts.

b) Fan motor not operating.

c) Refrigerant overcharged.

d) Bad contacts.

e) Refrigerant lines or components plugged.

a) Coil winding open or shorted.

a) In alarm.

b) Yellow "BC OPEN" LED on (bin full) ("G" control board).

c) Defective.

a) Tripped with bin lled with ice.

b) Actuator does not move freely.

c) Defective.

b) External water lters clogged.

b) Coil winding open.

c) Water valve open in freeze cycle.

a) Float does not move freely.

b) Defective.

open.

b) Start capacitor or run capacitor defective (single phase model).

c) Internal protector open.

d) Start relay contacts bad or coil winding open (single phase model).

e) Compressor defective.

b) Open in freeze cycle.

Page 43

No Ice Production - Possible Cause

15. Thermistor See "II.F. Thermistor Check"

16. Pump Motor a) Motor winding open.

1 7. Thermostatic Expansion Valve a) Bulb loose.

18. Liquid Line Valve a) Closed in freeze cycle.

19. Fan Motor a) Motor winding open.

20. Water System a) Water leaks causing short freeze time.

a) Loose, disconnected, or defective.

b) Bearing worn out or locked rotor.

c) Defective capacitor.

d) Mechanical seal worn out.

b) Operating erratically.

b) Open in harvest cycle.

b) Bearing worn out or locked rotor.

c) Defective capacitor.

2. Freeze-Up

Defrost and clean the icemaker prior to diagnosing freeze-up. Fill out a freeze-up checklist. See the Hoshizaki America Technician's Pocket Guide or contact your local distributor for a copy of the freeze-up checklist.

Freeze-Up - Possible Cause

Harvest Cycle

1. Evaporator a) Scaled up.

b) Damaged.

2. Cube Guides a) Out of position.

b) Damaged.

3. Spray Tubes and/or Spray Guides

4. Water Supply a) Low water pressure.

5. Inlet Water Valve a) Screen or orice clogged.

6. Float Switch See "II.E. Float Switch Check and Cleaning"

7. Refrigerant Charge a) Low.

8. Control Board See "II.C. Control Board Check" and "III.C. Settings and Adjustments"

9. Bin Control See "II.D. Bin Control Check"

a) Dirty.

b) Out of position.

b) External water lters clogged.

c) Insufficient water line size.

Minimum 3/8" Nominal ID (10 mm Nominal OD in the EU) copper water tubing or equivalent.

b) Defective.

a) Dirty, sticking.

b) Defective.

a) Harvest timer (S4 dip switch 1 & 2) set too short.

b) Harvest pump timer (S4 dip switch 7) not in factory default position

("G" control board).

c) Defective.

a) Thermostatic: Thermostat bulb loose or defective.

b) Mechanical: Actuator does not move or defective.

Page 44

Freeze-Up - Possible Cause

10. Thermistor See "II.F. Thermistor Check"

11. Thermostatic Expansion Valve a) Defective.

12. Hot Gas Valve a) Closed or restricted.

13. Liquid Line Valve a) Open.

1. Evaporator a) Scaled up.

2. Spray Tubes and/or Spray Guides

3. Refrigerant Charge a) Low.

4. Control Board See "II.C. Control Board Check"

5. Inlet Water Valve a) Leaking by.

6. Float Switch See "II.E. Float Switch Check and Cleaning"

7. Pump Motor a) RPM too slow.

8. Thermostatic Expansion Valve a) Bulb loose or defective.

9. Liquid Line Valve a) Restricted.

10. Headmaster (C.P.R.) (remote models)

a) Loose, disconnected, or defective.

Freeze Cycle

b) Damaged.

a) Dirty.

b) Out of position.

a) Freeze timer (S4 dip switch 9 & 10) set incorrectly.

b) Defective.

a) Float does not move freely.

b) Defective.

b) Impeller damaged.

a) Not bypassing.

3. Low Ice Production

Low Ice Production - Possible Cause

Long Harvest Cycle

1. Evaporator a) Scaled up.

2. Spray Tubes and/or Spray Guides

3. Refrigerant Charge a) Low.

4. Water Supply a) Low water pressure.

5. Control Board See "II.C. Control Board Check"

6. Thermistor See "II.F. Thermistor Check"

7. Hot Gas Valve a) Erratic or closed.

8. Inlet Water Valve a) Screen or orice clogged.

a) Dirty.

b) Out of position.

b) External water lters clogged.

c) Insufficient water line size.

Minimum 3/8" Nominal ID (10 mm Nominal OD in the EU) water tubing or equivalent.

d) Too cold.

a) Thermistor connection loose (K3).

b) Defective.

a) Loose, disconnected, or defective.

Page 45

Low Ice Production - Possible Cause

9. Compressor a) Inefficient or off.

10. Liquid Line Valve a) Erratic or open.

11. Thermostatic Expansion Valve a) Defective.

Long Freeze Cycle

1. Evaporator a) Scaled up, dirty.

2. Float Switch See "II.E. Float Switch Check and Cleaning"

3. Inlet Water Valve a) Leaking by.

4. Hot Gas Valve a) Erratic or open.

5. Condenser a) Clogged.

6. Control Board See "II.C. Control Board Check"

7. Refrigerant Charge a) Low.

8. Thermostatic Expansion Valve a) Bulb loose.

9. Compressor a) Inefficient or off.

10. Pump Motor a) RPM too slow.

11. Liquid Line Valve a) Erratic or restricted.

12. Headmaster (C.P.R.) (remote models)

a) Scaled up, dirty.

b) Float sticking.

c) Defective switch.

a) Float switch connection loose (K5).

b) Defective.

a) Not bypassing.

Page 46

III. Controls and Adjustments

• A Hoshizaki exclusive control board is employed in KM and KMH series appliances.

• All models are pretested and factory adjusted.

• For a control board check procedure, see "II.C. Control Board Check."

NOTICE

• Fragile, handle very carefully.

• The control board 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 K3 WHITE, K4RED, and K5 BLACK, because the same connector is used for the thermistor, mechanical bin control, and oat switch. K4 RED is not used on "E" control board models.

• Do not short out power supply to test for voltage.

• Always replace the whole control board assembly if it goes bad.

Page 47

A. Control Board Layout

1. "E" Control Board

"E" Control Board

• "ALARM RESET" Button

• Freeze Timer

LED (yellow)

• Harvest Backup

Timer LED (orange)

• Alarm Buzzer

• POWER OK LED (red) (lights when

10.5VAC is supplied to K2 connector)

• Relay LEDs

(4) (indicate which relays are energized and which K1 connector pins are energized

• LED 2 (X2 Relay)

LED 2 on: K1 Connector Pin #2 LED 2 off: K1 Connector Pin #3

• LED 3 (X3 Relay)

LED 3 on: K1 Connector 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

• S4 Dip Switch

• K2 Connector

Control Transformer (10.5VAC)

• "OUTPUT TEST" Button

(used to test relays on control board)

• K3 (white) Connector

Thermistor (harvest control and high temperature safety)

• K4 (red) Connector

Open

• Part Number

• K5 (black) Connector

Float Switch (water level)

Microprocessor (control board revision level indicated on label on side of relay)

• K1 Connector

Pins #1 through #10 #1, 9 Magnetic Contactor or Compressor Relay #2 Hot Gas Valve #3 Fan Motor Liquid Line Valve #4 Pump Motor (icemaking) #5 Pump Motor (pump-out) #6 Inlet Water Valve #7, 10 Component Power Supply #8 Open

Switch for "C" control board and "ALPINE" control board (service control board only) Set to "ALP" for appliances covered in this manual.

"E" Control Board

Part Number 2A1410-02

Page 48

2. "G" Control Board

• Bin Control Switch Closed LED (green)

(on continuously in thermostatic bin control application)

• "ALARM RESET" Button

"G" Control Board

• S4 Dip Switch

• "OUTPUT TEST" Button

(used to test relays on control board)

• Bin Control Switch Open LED (yellow)

(mechanical bin control application only)

• Part Number

• Alarm Buzzer

• POWER OK LED (red) (lights when

10.5VAC is supplied to K2 connector)

• Relay LEDs

(4) (indicate which relays are energized and which K1 connector pins are energized

• LED 2 (X2 Relay)

LED 2 on: K1 Connector Pin #2 LED 2 off: K1 Connector Pin #3

• LED 3 (X3 Relay)

LED 3 on: K1 Connector 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

• K3 (white) Connector

Thermistor (harvest control and high temperature safety)

• K4 (red) Connector

Mechanical Bin Control or K4 Jumper (thermostatic bin control application)

• S5 Dip Switch

• K5 (black) Connector

Float Switch (water level)

Label

(control board revision level indicated on label on side of relay)

• K1 Connector

Pins #1 through #10 #1, 9 Magnetic Contactor or Compressor Relay #2 Hot Gas Valve #3 Fan Motor Liquid Line Valve #4 Pump Motor (icemaking) #5 Pump Motor (harvest pump timer and pump-out) #6 Inlet Water Valve #7, 10 Component Power Supply #8 Open

• K2 Connector

Control Transformer (10.5VAC)

"G" Control Board

Part Number 2A3792-01

Page 49

B. LED Lights and Audible Alarm Safeties

1. "E" Control Board

At startup, a 5-second delay occurs while the control board conducts an internal timer check. A beep occurs when power is turned off. The red "POWER OK" LED indicates proper control voltage and remains on unless a control voltage problem occurs. The green LEDs 1 through 4 energize and sequence from initial startup as listed in the table below. Note that the order of the LEDs from the outer edge of the control board is 1, 4, 3, 2.

Sequence Step LED

1-Minute Fill Cycle 4 WV 1 minute Harvest Cycle 1, 4, 2 Comp, FMR, HGV, WV 2 minutes 20 minutes 3 to 5 minutes Freeze Cycle 1 Comp, FM/FMR, PM,

LLV

Pump-Out Cycle 1, 4*, 3, 2 Comp, FMR, HGV, PM,

WV*

Energized

Components

Min. Max. Avg.

5 minutes freeze timer

10 seconds 20 seconds *pump-out timer

Time LEDs are On

30 to 35 minutes

setting

The built in safeties shut down the icemaker and have alarms as listed below.

No. of Beeps

(every 3 sec.)

1 High Evaporator Temp.

(temperature > 127°F) (53°C)

2 Harvest Backup Timer

(harvest > 20 min. for two cycles in a row)

3 Freeze Timer

(freeze > specied setting for two cycles in a row)

To reset the above safeties, press the "ALARM RESET" button with the power supply on.

6 Low Voltage

(92Vac±5% or less)

7 High Voltage

(147Vac±5% or more)

Type of Alarm Notes

Check for harvest problem (stuck HGV or relay), hot water entering icemaker, or shorted thermistor.

Orange "H TIMER" LED on. Check for open thermistor, HGV not opening, TXV or LLV leaking by, low charge, or inefficient Comp, or WRV leaking by.

Yellow "F TIMER" LED on. Check for FS stuck closed (up), WV leaking by, HGV leaking by, PM not pumping, TXV not feeding properly, LLV not opening, low charge, HM not bypassing, or inefficient Comp.

Red LED turns off if voltage protection operates. The control voltage safeties automatically reset when voltage is corrected.

Legend: Comp–compressor; FM–fan motor; FMR–fan motor remote; FS–oat switch;

HGV–hot gas valve; HM–headmaster (C.P.R.); LLV–liquid line valve; PM–pump motor; TXV–thermostatic expansion valve; WRV–water regulating valve; WV–inlet water valve

Page 50

2. "G" Control Board

At startup, a 5-second delay occurs while the control board conducts an internal timer check. A beep occurs when the control switch is moved to the "ICE" position. The red "POWER OK" LED indicates proper control voltage and remains on unless a control voltage problem occurs. The green LEDs 1 through 4 energize and sequence from initial startup as listed in the table below. Note that the order of the LEDs from the outer edge of the control board is 1, 4, 3, 2.

Sequence Step LED

1-Minute Fill Cycle 4 WV 1 minute Harvest Cycle 1, 4, 2 Comp, FMR, HGV, WV 2 minutes 20 minutes 3 to 5 minutes Harvest Pump Timer 1, 3, 2 Comp, FMR, HGV, PM 0 seconds 50 seconds harvest pump timer

Freeze Cycle 1 Comp, FM/FMR, PM,

LLV

Pump-Out Cycle 1, 4*, 3, 2 Comp, FMR, HGV, PM,

WV*

Energized

Components

Min. Max. Avg.

5 minutes freeze timer

10 seconds 20 seconds *pump-out timer

Time LEDs are On

setting 30 to 35 minutes

setting

The built-in safeties shut down the icemaker and have alarms as listed below.

No. of Beeps

(every 3 sec.)

1 High Evaporator Temp.

(temperature > 127°F) (53°C)

2 Harvest Backup Timer

(harvest > 20 min. for two cycles in a row)

3 Freeze Timer

(freeze > freeze timer setting for two cycles in a row)

To reset the above safeties, press the "ALARM RESET" button with the power supply on.

6 Low Voltage

(92Vac±5% or less)

7 High Voltage

(147Vac±5% or more)

Type of Alarm Notes

Check for harvest problem (stuck HGV or relay), hot water entering icemaker, or shorted thermistor.

Check for open thermistor, HGV not opening, TXV or LLV leaking by, low charge, or inefficient Comp, or WRV leaking by.

Check for FS stuck closed (up), WV leaking by, HGV leaking by, PM not pumping, TXV not feeding properly, LLV not opening, low charge, HM not bypassing, or inefficient Comp.

Red LED turns off if voltage protection operates. The control voltage safeties automatically reset when voltage is corrected.

Legend: Comp–compressor; FM–fan motor; FMR–fan motor remote; FS–oat switch;

HGV–hot gas valve; HM–headmaster (C.P.R.); LLV–liquid line valve; PM–pump motor; TXV–thermostatic expansion valve; WRV–water regulating valve; WV–inlet water valve

Page 51

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 your Hoshizaki Service Center.

1. Default Dip Switch Settings

The dip switches are factory-adjusted to the following positions for both the "E" and "G" control boards:

a) "E" and "G" Control Board without Harvest Pump Timer Operation

Auxiliary

Model

KM-1601SWH/3

KM-1601SRH/3 R-0, R-1,

KM-1900SAH/3 KM-1900SWH/3 KM-2100SWH3 KMH-2000SWH/3 KMH-2000SRH3

KM-1900SRH/3 KM-2100SRH3

KM-2500S_H3

KMH-2000SRH

Code

some S-1

Some S-1 3 U 0111- 01

S-2 & later 4A1176-04 (11 l/min)

V-1 (M) & later 4A5251-04 (11 l/min)

Code on Water Valve Part Number

All

3U0111-02 (8 l/min)

(15 l/min)

All OFF OFF OFF OFF OFF OFF OFF OFF ON OFF

All ON OFF ON ON OFF OFF OFF OFF ON OFF

All OFF OFF OFF OFF OFF OFF OFF OFF OFF ON

All OFF OFF OFF OFF OFF OFF OFF OFF ON ON

Water

Valve

J248-032

J248-030

1 2 3 4 5 6 7 8 9 10

OFF OFF OFF OFF ON ON OFF OFF OFF ON

ON OFF ON OFF OFF OFF OFF OFF OFF OFF

ON OFF OFF OFF ON ON OFF OFF OFF OFF

S4 Dip Switch No.

Page 52

b) "G" Control Board with Harvest Pump Timer Operation

S4 Dip Switch

S4 Dip Switch No. 1 2 3 4 5 6 7 8 9 10

KM-1301SAH/3 KM-1301SWH/3 KM-1601SAH/3

KM-1301SRH/3

KM-1400SWH-M KM-1400SWH3-M

OFF OFF ON ON ON ON ON OFF OFF OFF

OFF OFF ON ON ON ON ON OFF ON OFF

OFF OFF OFF OFF OFF OFF ON OFF OFF OFF

c) "G" Control Board S5 Dip Switch

S5 Dip Switch (Do Not Adjust)

S5 Dip Switch No.

All OFF OFF OFF OFF OFF

1 2 3 4 5

S4 Dip Switch "E" and "G" Control Boards

1 2 3 4 5 6 7 8 9 10

Freeze Timer (9 & 10)

Factory Use (8)

Bin Control Selector (7) "E" Control Board Harvest Pump Timer (7) "G" Control Board

(Do Not Adjust)

Pump-Out Frequency Control (5 & 6)

Pump-Out Timer (3 & 4)

Harvest Timer (1 & 2)

S5 Dip Switch

"G" Control Board

Rell Counter (2 through 5)

1 2 3 4 5

Float Switch Selector (1)

2. Harvest Timer (S4 dip switch 1 & 2)

The harvest timer starts counting when the thermistor reaches 48°F (9°C) at the evaporator outlet and the control board reads 3.9 kΩ from the thermistor. The harvest timer is factory set, and generally no adjustment is required. However, a setting longer than the factory setting may be advised in cases where the drain provided at harvest needs to be prolonged for extra cleaning. Note that the pump-out timer (S4 dip switch 3 & 4) acts in place of the harvest timer during cycles with a pump out. For details, see "III.C.3. Pump-Out Timer (S4 dip switch 3& 4)."

Note: On models with a pump-out every cycle, the harvest timer is only relevant during

the initial harvest cycle since a pump out occurs every cycle thereafter.

S4 Dip Switch Setting Time

No. 1 No. 2

OFF OFF 60

ON OFF 90

OFF ON 120

ON ON 180

(sec.)

Page 53

3. Pump-Out Timer (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., then energizes in the reverse direction, taking water from the bottom of the water tank and forcing pressure against the check valve seat allowing water to go through the check valve and down the drain. At the same time, water ows through the small tube to power ush the oat switch. The pump motor drains the water tank for the time determined by the pump-out timer. The pump-out timer also acts in place of the harvest timer during cycles with a pump-out. The pump-out timer is factory set, and generally no adjustment is required. However, where water quality is bad and the icemaker needs a longer pump-out time, the pump-out timer can be adjusted. The pump-out timer control can be set to pump-out for 10 or 20 sec.

S4 Dip Switch Setting Time (sec.)

OFF OFF 10 150 Closed

ON OFF 10 180 Closed

OFF ON 10 120 Open

ON ON 20 180 Closed

T1: Time to drain the water tank T2: Harvest timer at pump out

Inlet Water

ValveNo. 3 No. 4

Page 54

4. Pump-Out Frequency Control (S4 dip switch 5 & 6)

The pump-out frequency control is factory set. Generally no adjustment is required. However, where water quality is bad and the icemaker needs a pump-out more often, the pump-out frequency can be adjusted. The pump-out frequency control can be set to have a pump-out occur every cycle, or every 2, 5, or 10 cycles.

Timing of the rst pump-out is dependent on the control board. On "E" control boards, the rst pump-out is after the rst freeze cycle. On "G" control boards, the rst pump-out is dependent on S4 dip switch 5 & 6. See the table below.

"E" & "G" Control Board 1st Pump-Out

S4 Dip Switch Setting

No. 5 No. 6

OFF OFF Every cycle After 1st freeze cycle After 2nd freeze cycle

ON OFF Every 2 cycles After 3rd freeze cycle

OFF ON Every 5 cycles After 6th freeze cycle

ON ON Every 10 cycles After 11th freeze cycle

Pump-Out

Frequency

"E" Control Board "G" Control Board

5. Bin Control Selector or Harvest Pump Timer Operation (S4 dip switch 7)

Depending on the control board, S4 dip switch 7 is used for either bin control selection or harvest pump timer operation.

• "E" Control Board: Bin Control Selector (thermostatic or mechanical).

• "G" Control Board: Harvest Pump Timer Operation.

a) Bin Control Selector: "E" Control Board

NOTICE

Do not adjust. This dip switch must be left in the factory default position or the icemaker will not operate correctly.

When set to on position on an icemaker with a thermostatic bin control, a 5-beep alarm sounds (open circuit) and the icemaker does not operate.

"E" Control Board

S4 Dip Switch Setting

No. 7

ON Mechanical (requires resistor wire harness)

OFF Thermostatic

Bin Control

Page 55

b) Harvest Pump Timer: "G" Control Board

NOTICE

Factory set for proper operation. Do not adjust. Adjustment outside of the factory default setting may result in damage to the appliance.

Depending on the harvest pump timer setting, the pump motor either stays off or is energized the last 50 seconds of harvest. When the pump motor is energized, water circulates over the evaporator. The harvest water valve is open during harvest for a maximum of 6 minutes or the length of harvest minus 0 or 50 seconds (determined by the harvest pump timer setting), whichever is shorter. When S4 dip switch 7 is in 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.C. Wiring Diagrams." 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 connector pin #5 (DBU wire) energizes, energizing the pump motor for the last 50 sec. of harvest.

"G" Control Board

S4 Dip Switch Setting

No. 7

ON 50

OFF 0

Pump Motor

Time (sec.)

6. Factory Use (S4 dip switch 8)

Factory set for proper operation. Do not adjust. This must be left in the factory default position.

7. Freeze Timer (S4 dip switch 9 & 10)

NOTICE

Adjust to proper specication, or the icemaker may not operate correctly.

The freeze timer setting determines the maximum allowed freeze time to prevent possible freeze-up issues. Upon termination of the freeze timer, the control board initiates the harvest cycle or pump-out cycle. After 2 consecutive freeze timer terminations, the control board shuts down the icemaker. In this case, see "II.G.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

No. 9 No. 10

OFF OFF 60

OFF ON 50

ON OFF 70

ON ON 75

(min.)

Page 56

8. Float Switch Selector (S5 dip switch 1): "G" Control Board

NOTICE

Do not adjust. This must be left in the factory default position or the icemaker will not operate correctly.

9. Rell Counter (S5 dip switch 2 through 5): "G" Control Board

NOTICE

Do not adjust. These must be left in the factory default position or the icemaker will not operate correctly.

D. Control Switch

The control switch has three positions: "OFF" for power off, "ICE" for icemaking, and "WASH" to energize the pump motor when cleaning and sanitizing.

Page 57

IV. Refrigeration Circuit and Component Service Information

WARNING

• This appliance should be diagnosed and repaired only by qualied service personnel to reduce the risk of death, electric shock, serious injury, or re.

• Move the control switch to the "OFF" position and turn off the power supply. Place the disconnect in the "OFF" position. Lockout/Tagout to prevent the power supply from being turned back on inadvertently.

• CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are securely in place after the icemaker is serviced. Make sure that none have fallen into the dispenser unit/ice storage bin.

• Make sure all food zones in the icemaker and dispenser unit/ice storage bin are clean after service.

A. Refrigeration Circuit Service Information

WARNING

• Repairs requiring the refrigeration circuit to be opened must be performed by properly trained and EPA-certied service personnel.

• 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 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 used in R-404A applications can absorb moisture quickly. Therefore it is important to prevent moisture from entering the system when replacing or servicing parts.

• Always install a new drier every time the sealed refrigeration system is opened. Do not replace the drier until after all other repair or replacement has been made. Install the new drier with the arrow on the drier in the direction of the refrigerant ow.

• 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).

1. Refrigerant Recovery

The icemaker is provided with refrigerant service valves. Using proper refrigerant practices, recover the refrigerant. Store the refrigerant in an approved container. Do not discharge the refrigerant into the atmosphere.

Page 58

2. Brazing

WARNING

• R-404A itself is not ammable at atmospheric pressure and temperatures up to 176°F (80°C).

• R-404A itself is not explosive or poisonous. However, when exposed to high temperatures (open ames), R-404A can be decomposed to form hydrouoric acid and carbonyl uoride both of which are hazardous.

• Do not use silver alloy or copper alloy containing arsenic.

1) Braze all ttings while purging with nitrogen gas owing at a pressure of 3 to 4 PSIG. Note: Because the pipes in the evaporator case are specially coated to resist corrosion,

it is important to make connections outside the evaporator case when possible. If it is necessary to braze inside the evaporator case, use sandpaper to remove the coating from the brazing connections before unbrazing the components.

NOTICE

• Always install a new drier every time the sealed refrigeration system is opened.

• Do not replace the drier until after all other repair or replacement has been made.

Install the new drier with the arrow on the drier in the direction of the refrigerant ow.

• 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 use R-404A as a mixture with pressurized air for leak testing.

3. Evacuation and Recharge (R-404A)

1) Attach a vacuum pump to the system. Be sure to connect the charging hoses to both high and low-side refrigerant access valves.

IMPORTANT

The vacuum level and vacuum pump may be the same as those for current refrigerants. However, the rubber hose and gauge manifold to be used for evacuation and refrigerant charge should be exclusively for POE oils.

2) Turn on the vacuum pump. Open the gauge manifold valves, then open the high and low-side service valves. Never allow the oil in the vacuum pump to ow backwards.

3) Allow the vacuum pump to pull down to a 29.9" Hg vacuum. Evacuating period depends on pump capacity.

Page 59

4) Close the low-side valve and high-side valve on the gauge manifold.

5) Disconnect the gauge manifold hose from the vacuum pump and attach it to a refrigerant service cylinder. Remember to loosen the connection and purge the air from the hose. For the required refrigerant charge, see the rating label inside the icemaker. Hoshizaki recommends only virgin refrigerant or reclaimed refrigerant which meets ARI Standard 700 (latest edition) be used.

6) A liquid charge 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 system through the low-side.

NOTICE!To prevent compressor damage, use a throttling valve or liquid dispensing device to add the remaining liquid charge through the low-side refrigerant service valve with the icemaker running.

9) Close the high and low-side service valves, then close the high and low-side gauge manifold valves. Disconnect the gauge manifold hoses.

10) Cap the refrigerant service valves to prevent a possible leak.

Page 60

B. Component Service Information

NOTICE

When replacing a component listed below, see the notes to help ensure proper operation.

Component Notes

Compressor 1 phase: Install a new start capacitor, run capacitor, and start relay.

3 phase: Install a new magnetic contactor.

Thermostatic Expansion Valves

Hot Gas Valves Liquid Line Valves

Fan Motors Install a new capacitor.

Pump Motor Install a new capacitor.

Thermistor • Attach the new thermistor to the suction line in the same location as the previous

• 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.

• Replace the strainer if applicable.

• Use copper tube of the same diameter and length when replacing valve lines.

thermistor.

KM-1400SWH-M, KM-1400SWH3-M Water Regulating Valve

• The thermistor should be at the 12 o'clock position on the tube.

• Smoothly ll the recessed area of the thermistor holder with high thermal conductive type sealant. Hoshizaki America part number 4A0683-01 (Silicone Heat Sink Compound 10-8108 manufactured by GC Electronics), KE-4560 RTV (manufactured by ShinEtsu Silicones), or equivalent are recommended.

• Secure the thermistor with the holder, then insulate it.

• Be very careful to prevent damage to the leads.

Tighten the water regulating valve are nut to a torque of 39.8 ft-lb/53.9N·m.

Page 61

C. Water Regulating Valve Adjustment (water-cooled models)

The water regulating valve is factory set, and generally no adjustment is required. However, when necessary, adjust the water regulator using the following procedure.

1) Prepare a thermometer to check the condenser drain temperature. Attach a pressure gauge to the high-side line of the system.

2) 5 min. after a freeze cycle starts, conrm that the thermometer reads 104°F to 115°F (40°C to 46°C). If it does not, rotate the adjustment screw by using a at blade screwdriver until the temperature is in the proper range (rotate counterclockwise to raise temperature or clockwise to lower temperature). See Fig. 6. Next, check that the reference pressure is in the range indicated in "VIII.A. Specication and Performance Data." If it is not in the proper range, verify the refrigerant charge.

3) Check that the condenser drain temperature is stable.

Adjustment Screw

CW – Lower CCW – Higher

Top View

Fig. 6

Page 62

V. Maintenance

The maintenance schedule below is a guideline. More frequent maintenance may be required depending on water quality, the appliance's environment, and local sanitation regulations

WARNING

• Only qualied service technicians should service the appliance.

• To reduce the risk of electric shock, do not touch the control switch or service switch with damp hands

• Before servicing: Move the control switch to the "OFF" position and turn off the power supply. Place the disconnect in the "OFF" position. Lockout/Tagout to prevent the power supply from being turned back on inadvertently.

• CHOKING HAZARD: Ensure all components, fasteners, and thumbscrews are securely in place after any maintenance is done to the icemaker. Make sure that none 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.

Bi-Weekly Air Filters Inspect. Wash with warm water and neutral cleaner if dirty.

Monthly External Water

Filters Icemaker Exterior Wipe down with a clean, soft cloth. Use a damp cloth containing a

Yearly Icemaker and

Dispenser Unit/Ice Storage Bin Liner

Water Supply Inlet Close the icemaker water supply line shut-off valve and drain the water

Condenser Inspect. Clean if necessary by using a brush or vacuum cleaner. More

Water Hoses Inspect the water hoses and clean/replace if necessary.

As Needed Marine Model

Condenser

Check for proper pressure and change if necessary.

neutral cleaner to wipe off oil or dirt build up. Clean any chlorine staining (rust colored spots) using a non-abrasive cleanser.

Clean and sanitize per the cleaning and sanitizing instructions provided in the instruction manual or maintenance label on the icemaker.

system. Clean the water supply inlet screen.

frequent cleaning may be required depending on location.

If contaminated seawater enters the system, ush with clean seawater or fresh water as soon as possible to minimize damage to the condenser.

Page 63

VI. Preparing the Icemaker for Periods of Non-Use

NOTICE

• When storing the appliance for an extended time or in sub-freezing temperatures, follow the instructions below to prevent damage.

• To prevent damage to the water pump, do not operate the appliance with the control switch in the "WASH" position when the water tank is empty.

When the appliance is not used for two or three days under normal conditions, it is sufficient to move the control switch to the "OFF" position. When storing the appliance for an extended time or in sub-freezing temperatures, follow the instructions below.

1. Remove the water from the icemaker water supply line:

1) Turn off the power supply, then remove the front panel.

2) Move the control switch to the "OFF" position.

3) Close the icemaker water supply line shut-off valve, then open the icemaker water supply line drain valve.

4) Allow the line to drain by gravity.

5) Attach a compressed air or carbon dioxide supply to the icemaker water supply line drain valve.

6) Move the control switch to the "ICE" position.

7) Replace the front panel in its correct position, then turn on the power supply.

8) Blow the icemaker water supply line out using the compressed air or carbon dioxide supply.

9) Close the icemaker water supply line drain valve.

2. Drain the water tank:

1) Turn off the power supply, then remove the front panel.

2) Move the control switch to the "OFF" position.

3) Remove the insulation panel. Remove the drain plug located on the lower front part of the ice chute. See Fig. 7. Allow the water tank to drain.

4) Replace the drain plug and the insulation panel in their correct positions. Be careful not to cross thread the drain plug.

5) Remove all ice from the dispenser unit/ice

Drain Plug

Cleaning Valve

storage bin. Clean the dispenser unit/ice storage bin liner using a neutral cleaner. Rinse thoroughly after cleaning.

6) Replace the front panel in its correct position.

Fig. 7

Ice Chute

Float Switch Assembly

Page 64

3. On water-cooled model, remove the water from the water-cooled condenser:

1) Make sure the power supply is off, then remove the front, top, and right side panels.

2) Close the condenser water supply line shut-off valve. If connected to a closed loop system, also close the condenser return line shut-off valve.

3) Open the condenser water supply line drain valve. If connected to a closed loop system, also open the condenser return line drain valve.

4) Attach a compressed air or carbon dioxide supply to the condenser water supply line drain valve.

5) Open the water regulating valve by using a screwdriver to pry up on the spring retainer underneath the spring. While holding the valve open, blow out the condenser using the compressed air or carbon dioxide supply until water stops coming out.

6) Close the drain valve(s).

7) Replace the right side, top, and front panels in their correct positions.

Page 65

VII. Disposal

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 certied service personnel.

Page 66

VIII. Technical Information

We reserve the right to make changes in specications and design without prior notice.

A. Specication and Performance Data

Pressure data is recorded at 5 min. into freezing cycle. The data not in bold should be used for reference only.

1. KM-1301SAH

SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) or 208-230/60/1 AMPERAGE 12.4 A ( 5 Min. Freeze AT 104°F / WT 80°F)

MINIMUM CIRCUIT AMPACITY 20 A

MAXIMUM FUSE SIZE 20 A

ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F

ELECTRIC W (kWH/100 lbs.) 2250 (4.63) 2160 (3.9)

WATER gal./24HR (gal./100 lbs.) 183 (15.7) 605 (45.5)

ICE PRODUCTION PER CYCLE 29.8 lbs. (13.5 kg) 1440pcs.

REFRIGERANT CHARGE R404A, 3 lb. 15.5 oz. (1800g)

PERFORMANCE DATA APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1253 568 1140 517 965 438 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 345 1.30 179 0.68 152 0.58 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 278 19.5 323 22.7 365 25.7 SUCTION PRESSURE

AMBIENT TEMP.

(ºF/ºC)

70/21 1329 603

80/27 1292 586 1217 552 1109 503

90/32 1281 581 1164 528 1060 481

70/21

80/27

90/32

70/21 605 2.29

80/27 510 1.93 318 1.21 331 1.25

90/32 481 1.82 183 0.69 167 0.63

70/21

80/27

90/32

70/21

80/27

90/32

70/21 255 17.9

80/27 269 18.9 297 20.9 321 22.6

90/32 273 19.2 317 22.3 342 24.0

70/21 50 3.5 50 3.5 53 3.8 80/27 50 3.5 50 3.5 55 3.9 90/32 50 3.5 50 3.5 55 3.8

50/10 70/21 90/32

2160 2166 2222

2164 2174 2257

2166 2180

2193 2197 2320

31 32 35

32 35 38 33 36 41

4.7 3.9

4.1 2.9 3.1

3.9 2.1

3.1 2.1 2.1

WATER TEMP. (ºF/ºC)

1281 581 1188 539

481 1.82 429 1.62

273 19.2 298 20.9

2253

3.7

2.1

PSIG kg/cm2G 100/38 52 3.6 51 3.6 59 4.1

TOTAL HEAT OF REJECTION FROM CONDENSER

20,300 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 67

2. KM-1301SAH3

SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 9.5 A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2220(4.6) 2090(3.9) WATER gal./24HR (gal./100 lbs.) 181(15.6) 511(39.4) ICE PRODUCTION PER CYCLE 30.4 lbs. (13.8 kg) 1440pcs. REFRIGERANT CHARGE R404A, 3 lb. 15.5 oz. (1800g)

PERFORMANCE DATA APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1225 556 1133 514 947 430 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 305 1.15 176 0.67 139 0.53 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 276 19.4 321 22.5 361 25.4 SUCTION PRESSURE

PSIG kg/cm2G 100/38 50 3.5 52 3.6 58 4.1

AMBIENT TEMP.

(ºF/ºC) 50/10 70/21 90/32

70/21 1298 589

80/27 1267 575 1204 546 1086 493

90/32 1257 570 1159 526 1049 476

70/21

80/27

90/32

70/21 511 1.94

80/27 438 1.66 287 1.09 286 1.08

90/32 415 1.57 181 0.68 159 0.60

70/21

80/27

90/32

70/21

80/27

90/32

70/21 254 17.9

80/27 268 18.8 295 20.8 319 22.4

90/32 272 19.1 315 22.1 339 23.8

70/21 48 3.4 49 3.4 52 3.6

80/27 49 3.4 50 3.5 54 3.8

90/32 49 3.4 51 3.6 55 3.8

2090

2119

2128

2123

4.2

3.8

3.6 2.12.1

2.9

WATER TEMP. (ºF/ºC)

1257 570 1162 527

2128

2178

2220

2224

415 1.57 367 1.39

3.6

2.8

2.1

272 19.1 296 20.8

2152

2187

2236

2250

3.4

2.9

2.1

TOTAL HEAT OF REJECTION FROM CONDENSER

20,200 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 68

3. KM-1301SWH

SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) or 208-230/60/1 AMPERAGE 8.2 A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION ELECTRIC W (kWH/100 lbs.) 1760(3.2) 1740(3.2) WATER gal./24HR (gal./100 lbs.) 257(19.4) 546(41.4) WATER COOLED CONDENSER 1561(118) 861(65) gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE 31 lbs. (14.1 kg) 1440pcs. REFRIGERANT CHARGE R404A, 2 lb. 8.2 oz. (1140g)

PERFORMANCE DATA APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1281 581 1301 590 1141 518 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 1861 7.04 1969 7.46 3060 11.58 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 241 16.9 241 17.0 264 18.6 SUCTION PRESSURE

PSIG kg/cm2G 100/38 51 3.6 50 3.5 54 3.8

AMBIENT

TEMP. (ºF/ºC) 50/10 70/21 90/32

70/21 1318 598

80/27 1319 598 1321 599 1211 549

90/32 1319 599 1323 600 1228 557

70/21

80/27

90/32

70/21 1407 5.33

80/27 1499 5.67 1686 6.38 2406 9.11

90/32 1527 5.78 1818 6.88 2465 9.33

70/21

80/27

90/32

70/21

80/27

90/32

70/21 235 16.5

80/27 236 16.6 237 16.7 253 17.8

90/32 236 16.6 238 16.7 252 17.7

70/21 50 3.5 50 3.5 52 3.6

80/27 50 3.5 49 3.5 52 3.7

90/32 50 3.5 49 3.4 52 3.6

90/70°F 70/50°F

WATER TEMP. (ºF/ºC)

1319 599 1249 567

1740

1744

1746

1755

1527 5.78 2049 7.76

4.5

4.0

3.9 2.22.4

3.2

1746

1754

1760

1766

3.9

3.1

2.4

236 16.6 246 17.3

1767

1782

1786

1810

3.5

3.0

2.1

TOTAL HEAT OF REJECTION FROM CONDENSER

TOTAL HEAT OF REJECTION FROM COMPRESSOR 2,300 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

WATER FLOW FOR CONDENSER 120 gal./h [AT 100ºF (38ºC) / WT 90ºF (32ºC)]

PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG

17,600 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 69

4. KM-1301SWH3

SPECIFICATION SHEET AC SUPPLY VOLTAGE AMPERAGE MINIMUM CIRCUIT AMPACITY

208-230/60/3

6.1 A ( 5 Min. Freeze AT 104°F / WT 80°F) 20 A

MAXIMUM FUSE SIZE

ELECTRIC & WATER CONSUMPTION

ELECTRIC W (kWH/100 lbs.)

WATER gal./24HR (gal./100 lbs.)

WATER COOLED CONDENSER

gal./24HR (gal./100 lbs.)

ICE PRODUCTION PER CYCLE

REFRIGERANT CHARGE

PERFORMANCE DATA APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1286 584 1277 579 1110 503 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER

gal./day m3/day 100/38 1846 6.99 1944 7.36 3015 11.41 FREEZING CYCLE TIME

min. 100/38 31 33 35 HARVEST CYCLE TIME

min. 100/38 3.1 2.3 2.1 HEAD PRESSURE

PSIG kg/cm2G 100/38 244 17.1 244 17.1 269 18.9 SUCTION PRESSURE

PSIG kg/cm2G 100/38 51 3.6 50 3.5 55 3.9

AMBIENT TEMP.

(ºF/ºC)

70/21 1333 605

80/27 1326 601 1311 594 1198 544 90/32 1323 600 1300 590 1201 545

70/21

80/27

90/32

70/21 1414 5.35

80/27 1499 5.68 1673 6.33 2382 9.02

90/32 1526 5.78 1795 6.80 2431 9.20

70/21 30 31 32

80/27 31 32 33 90/32 31 32 34

70/21 4.5 3.8 3.5

80/27 4.0 3.0 3.0 90/32 3.8 2.4 2.2

70/21 237 16.7

80/27 238 16.7 239 16.8 256 18.0

90/32 238 16.7 240 16.9 255 17.9

70/21 50 3.5

80/27 50 3.5 49 3.5 53 3.7

90/32 50 3.5 49 3.4 52 3.7

20 A

90/70°F 70/50°F

1840(3.4) 1770(3.2)

248(19.1) 557(41.8)

1547(119) 857(64)

32.2 lbs. (14.6 kg) 1440pcs.

R404A, 2 lb. 8.2 oz. (1140g)

WATER TEMP. (ºF/ºC)

50/10

1770 1791

1786

1789 1842 1860

70/21

1323 600 1246 565

1526 5.78 2036 7.71

238 16.7 249 17.5

50 3.5 52 3.7

1818

18401791

90/32

1805

1824

1850

TOTAL HEAT OF REJECTION FROM CONDENSER 17,400 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

TOTAL HEAT OF REJECTION FROM COMPRESSOR 2,300 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

WATER FLOW FOR CONDENSER 119 gal./h [AT 100ºF (38ºC) / WT 90ºF (32ºC)] PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG

Page 70

5. KM-1301SRH with URC-14F

SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) or 208-230/60/1 AMPERAGE 13.5A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2090(4.1) 2010(3.6) WATER gal./24HR (gal./100 lbs.) 203(16.6) 479(35.4) ICE PRODUCTION PER CYCLE 31.1 lbs. (14.1 kg) 1440pcs. TOTAL REFRIGERANT CHARGE R404A, 10 lbs. 5.8 oz. (4700g) REFRIGERANT CHARGE BY UNIT (Icemaker 5 lbs. 15.2 oz. Cond. Unit 4 lbs. 6.5 oz.)

PERFORMANCE DATA APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1281 581 1196 542 1008 457 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 303 1.15 196 0.74 146 0.55 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 230 16.2 267 18.8 301 21.2 SUCTION PRESSURE

PSIG kg/cm2G 100/38 52 3.6 53 3.7 59 4.1

AMBIENT TEMP.

(ºF/ºC) 50/10 70/21 90/32

70/21 1353 614

80/27 1324 600 1264 573 1144 519

90/32 1315 596 1222 554 1110 504

70/21

80/27

90/32

70/21 479 1.81

80/27 417 1.58 292 1.10 278 1.05

90/32 398 1.51 203 0.77 173 0.66

70/21

80/27

90/32

70/21

80/27

90/32

70/21 211 14.8

80/27 222 15.6 246 17.3 265 18.7

90/32 226 15.9 262 18.4 282 19.9

70/21 50 3.5 51 3.6 53 3.8

80/27 50 3.5 51 3.6 55 3.9

90/32 51 3.6 52 3.7 56 3.9

2010

2028

2033

4.1

3.7

3.6 2.2

3.0

WATER TEMP. (ºF/ºC)

1315 596 1219 553

2033

2064

2090

2105

398 1.51 350 1.32

3.6

2.9

2.3

226 15.9 246 17.3

2088

2131

2153

22102052

3.3

2.9

2.1

TOTAL HEAT OF REJECTION FROM CONDENSER

TOTAL HEAT OF REJECTION FROM COMPRESSOR

CONDENSER VOLUME 133 CU. IN (URC-14F)

17,600 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

2,500 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 71

6. KM-1301SRH3 with URC-14F

SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 10.7A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A

MAXIMUM FUSE SIZE 20 A

ELECTRIC & WATER CONSUMPTION

ELECTRIC W (kWH/100 lbs.) 2140(4.3) 2090(3.8)

WATER gal./24HR (gal./100 lbs.) 192(16.0) 463(34.6)

ICE PRODUCTION PER CYCLE 30.7 lbs. (13.9 kg) 1440pcs.

TOTAL REFRIGERANT CHARGE R404A, 10 lbs. 5.8 oz. (4700g)

REFRIGERANT CHARGE BY UNIT (Icemaker 5 lbs. 15.2 oz. Cond. Unit 4 lbs. 6.5 oz.)

PERFORMANCE DATA APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1266 574 1171 531 988 448 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER

gal./day m3/day 100/38 291 1.10 185 0.70 141 0.53 FREEZING CYCLE TIME

min. 100/38 33 36 42 HARVEST CYCLE TIME

min. 100/38 2.9 2.2 2.1 HEAD PRESSURE

PSIG kg/cm2G 100/38 234 16.5 267 18.8 311 21.9 SUCTION PRESSURE

PSIG kg/cm2G 100/38 52 3.7 53 3.7 60 4.2

AMBIENT TEMP.

(ºF/ºC)

70/21 1339 607

80/27 1307 593 1243 564 1127 511 90/32 1297 589 1197 543 1088 494

70/21

80/27

90/32

70/21 463 1.75

80/27 403 1.52 279 1.06 269 1.02

90/32 384 1.45 192 0.72 165 0.63

70/21 31 32 35

80/27 32 34 37 90/32 32 35 39

70/21 3.9 3.4 3.2

80/27 3.5 2.8 2.8 90/32 3.4 2.2 2.1

70/21 214 15.0

80/27 224 15.8 246 17.3 273 19.2

90/32 228 16.0 261 18.4 287 20.2

70/21 50 3.5

80/27 50 3.5 51 3.6 56 3.9

90/32 51 3.6 52 3.7 56 3.9

90/70°F 70/50°F

WATER TEMP. (ºF/ºC)

1297 589 1203 546

2090 2105

2101

2105

2128 2156 2270

384 1.45 338 1.28

228 16.0 252 17.7

51 3.6 54 3.8

2124

90/3270/2150/10

2160

2199

22082140

TOTAL HEAT OF REJECTION FROM CONDENSER 17,500 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

TOTAL HEAT OF REJECTION FROM COMPRESSOR 2,400 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

CONDENSER VOLUME 133 CU. IN (URC-14F)

Page 72

7. KM-1400SWH-M

SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/1 (2 Wire) AMPERAGE 9.7 A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 15 A MAXIMUM FUSE SIZE 15 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 1820(3.4) 1800(3.2) POTABLE WATER gal./24HR (gal./100 lbs.) 244(18.9) 462(33.7) WATER COOLED CONDENSER 2078(161) 1108(81) gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCL 32.5 lbs. (14.7 kg) 1440pcs. REFRIGERANT CHARGE R404A, 2 lb. 2.4 oz. (975g)

PERFORMANCE SHEET APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./da APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G SUCTION PRESSURE

PSIG kg/cm2G

AMBIENT TEMP.

(ºF/ºC)

70/21 1370 621 80/27 1353 614 1318 598 1186 538 90/32 1347 611 1293 587 1175 533

100/38 1307 593 1265 574 1066 484

70/21 80/27 90/32

70/21 1570 5.94 80/27 1738 6.58 2080 7.88 2759 10.44 90/32 1790 6.78 2322 8.79 2955 11.19

100/38 2226 8.42 2471 9.35 3537 13.39

70/21 80/27 90/32

70/21 220 15.5 80/27 227 15.9 240 16.9 265 18.7 90/32 229 16.1 250 17.6 273 19.2

100/38 236 16.6 255 18.0 295 20.7

70/21 50 3.5 51 3.6 55 3.9 80/27 51 3.6 53 3.8 58 4.1 90/32 51 3.6 55 3.9 59 4.2

100/38 53 3.7 56 3.9 63 4.4

50/10 70/21 90/32

1800 1806 1843 1804 1814 1866 1806 1820 1867 1823 1831 1910

30 31 31 32 35 31 33 36 32 34 39

3.9 3.6 3.5

3.7 3.2 3.3

3.6 2.8 2.9

3.3 2.8 2.9

WATER TEMP. (ºF/ºC)

1347 611 1252 568

1790 6.78 2334 8.84

229 16.1 249 17.5

TOTAL HEAT OF REJECTION FROM CONDENSER TOTAL HEAT OF REJECTION FROM COMPRESSOR 2,500 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] WATER FLOW FOR CONDENSER 138 gal./h [AT 100ºF (38ºC) / WT 90ºF (32ºC)] PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG

22,800 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 73

8. KM-1400SWH3-M

SPECIFICATION SHEET AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 7.1 A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 15 A MAXIMUM FUSE SIZE 15 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 1720(3.3) 1700(3.0) POTABLE WATER gal./24HR (gal./100 lbs.) 225(17.9) 449(33.4) WATER COOLED CONDENSER 1829(146) 1030(77) gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYC 31.9 lbs. (14.5 kg) 1440pcs. REFRIGERANT CHARGE R404A, 2 lb. 2.4 oz. (975g)

PERFORMANCE SHEET APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./da APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G SUCTION PRESSURE

PSIG kg/cm2G

AMBIENT TEMP.

(ºF/ºC)

70/21 1343 609 80/27 1323 600 1283 582 1138 516 90/32 1317 597 1255 569 1124 510

100/38 1272 577 1224 555 1003 455

70/21 80/27 90/32

70/21 1479 5.60 80/27 1607 6.08 1869 7.07 2665 10.09 90/32 1647 6.23 2054 7.78 2777 10.51

100/38 2056 7.78 2223 8.41 3442 13.03

70/21 80/27 90/32

70/21 230 16.2 80/27 233 16.4 240 16.9 269 18.9 90/32 234 16.5 245 17.2 271 19.1

100/38 244 17.1 251 17.7 295 20.7

70/21 48 3.4 49 3.5 54 3.8 80/27 49 3.5 51 3.6 57 4.0 90/32 49 3.5 53 3.7 58 4.1

100/38 51 3.6 54 3.8 63 4.4

50/10 70/21 90/32

1700 1706 1751 1704 1714 1779 1706 1720 1777 1727 1733 1830

31 32 35 32 33 37 32 34 37 33 35 40

4.5 4.0 3.9

4.1 3.4 3.5

4.0 2.8 2.8

3.5 2.8 2.8

WATER TEMP. (ºF/ºC)

1317 597 1211 549

1647 6.23 2242 8.49

234 16.5 255 17.9

TOTAL HEAT OF REJECTION FROM CONDENSER TOTAL HEAT OF REJECTION FROM COMPRESSOR 2,500 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] WATER FLOW FOR CONDENSER 136 gal./h [AT 100ºF (38ºC) / WT 90ºF (32ºC)] PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG

23,500 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 74

9. KM-1601SAH

SPECIFICATION SHEE

AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) AMPERAGE 15.0 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2630(4.70) 2450(4.03) WATER gal./24HR (gal./100 lbs.) 228(17.0) 709(48.5) ICE PRODUCTION PER CYCLE 31.4 lbs. (14.3 kg) 1440pcs. REFRIGERANT CHARGE R404A, 3 lb. 12.5 oz. (1715g)

PERFORMANCE DATA SHEE

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1379 625 1309 594 1064 483 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 411 1.56 223 0.84 185 0.70 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 294 20.7 326 23.0 373 26.2 SUCTION PRESSURE

PSIG kg/cm2G 100/38 44 3.1 43 3.1 54 3.8

AMBIENT TEMP.

(ºF/ºC)

70/21 1462 663 1427 647 1307 593 80/27 1435 651 1381 627 1221 554 90/32 1427 647 1343 609 1198 543

70/21 80/27 90/32

70/21 709 2.68 80/27 602 2.28 383 1.45 392 1.49 90/32 568 2.15 228 0.86 206 0.78

70/21 80/27 90/32

70/21 273 19.2 80/27 283 19.9 305 21.4 333 23.4 90/32 287 20.2 320 22.5 348 24.4

70/21 41 2.9 41 2.9 46 3.2 80/27 41 2.9 42 2.9 49 3.4 90/32 41 2.9 42 3.0 48 3.4

50/10

2450 2503 2563 2490 2572 2503 2630 2687 2511 2643 2740

29 30 30 31 35 30 33 36

31 33

4.6 3.9 3.6

4.0 2.9 3.1

3.9 2.1 2.1

3.1 2.1

WATER TEMP. (ºF/ºC)

70/21 90/32

2625

568 2.15 505 1.91

2.1

287 20.2 312 21.9

TOTAL HEAT OF REJECTION FROM CONDENSER

20,700 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 75

10. KM-1601SAH3

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 12.0 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2610(4.65) 2370(3.91) WATER gal./24HR (gal./100 lbs.) 249(18.5) 708(48.6) ICE PRODUCTION PER CYCLE 32.5 lbs. (14.8 kg) 1440pcs. REFRIGERANT CHARGE R404A, 3 lb. 12.5 oz. (1715g)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1379 626 1314 596 1088 494 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 422 1.60 243 0.92 198 0.75 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 293 20.6 355 25.0 392 27.6 SUCTION PRESSURE

PSIG kg/cm2G 100/38 45 3.2 54 3.8 60 4.2

AMBIENT TEMP.

(ºF/ºC)

70/21 1456 660 80/27 1431 649 1381 626 1234 560 90/32 1423 646 1345 610 1211 549

70/21 80/27 90/32

70/21 708 2.68 80/27 605 2.29 396 1.50 400 1.51 90/32 573 2.17 249 0.94 222 0.84

70/21 80/27 90/32

70/21 267 18.8 80/27 286 20.1 323 22.7 343 24.1 90/32 291 20.5 350 24.6 372 26.1

70/21 41 2.9 45 3.1 48 3.4 80/27 44 3.1 49 3.5 52 3.7 90/32 45 3.1 53 3.7 57 4.0

50/10 70/21 90/32

2370 2440 2463 2424 2533 2515 2440 2610 2610 2420 2610 2610

28 30 33 30 32 30 33 37 31 34 39

4.8 4.1 3.8

4.2 3.1 3.2

4.1 2.4 2.3

3.3 2.4 2.2

WATER TEMP. (ºF/ºC)

1423 646 1313 596

573 2.17 510 1.93

291 20.5 316 22.2

TOTAL HEAT OF REJECTION FROM CONDENSER

24,400 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 76

11. KM-1601SWH

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) AMPERAGE 13.4 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2410(3.8) 2300(3.7) WATER gal./24HR (gal./100 lbs.) 373(24.5) 698(46.8) WATER COOLED CONDENSER 1493(98) 930(62) gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE 30.2 lbs. (13.7 kg) 1440 pcs. REFRIGERANT CHARGE R-404A, 3 lbs. 1 oz. ( 1400g )

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1453 659 1496 679 1303 591 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 1908 7.22 1967 7.44 2693 10.20 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 249 17.5 260 18.3 281 19.8 SUCTION PRESSURE

PSIG kg/cm2G 100/38 44 3.1 45 3.2 49 3.4

AMBIENT TEMP.

(ºF/ºC)

70/21 1492 677 80/27 1499 680 1513 686 1378 625 90/32 1501 681 1523 691 1408 639

70/21 80/27 90/32

70/21 1628 6.16 80/27 1681 6.36 1789 6.77 2272 8.60 90/32 1697 6.43 1866 7.06 2297 8.70

70/21 80/27 90/32

70/21 241 16.9 80/27 244 17.2 252 17.7 265 18.6 90/32 246 17.3 257 18.0 269 18.9

70/21 43 3.0 44 3.1 45 3.2 80/27 43 3.1 44 3.1 47 3.3 90/32 44 3.1 44 3.1 47 3.3

50/10 70/21 90/32

2300 2332 2335 2325 2375 2354 2332 2410 2400 2319 2408 2390

25 25 27 25 26 25 27 29 26 27 30

5.0 4.2 3.8

4.4 3.3 3.2

4.2 2.5 2.2

3.4 2.4 2.0

WATER TEMP. (ºF/ºC)

1501 681 1419 643

1697 6.43 2042 7.73

246 17.3 257 18.0

TOTAL HEAT OF REJECTION FROM CONDENSER 23,100 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] TOTAL HEAT OF REJECTION FROM COMPRESSOR 3,300 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] WATER FLOW FOR CONDENSER 101 gal./h [AT 100ºF (38ºC) / WT 90ºF (32ºC)] PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG

Page 77

12. KM-1601SWH3

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 9.0 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2390(3.66) 2270(3.5) WATER gal./24HR (gal./100 lbs.) 372(23.8) 804(51.7) WATER COOLED CONDENSER 1565(100) 910(59) gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE 30.2 lbs. (13.7 kg) 1440 pcs. REFRIGERANT CHARGE R-404A, 3 lbs. 1 oz. ( 1400g )

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1507 684 1536 697 1326 601 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 2013 7.62 2059 7.79 2930 11.09 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 249 17.5 251 17.6 287 20.2 SUCTION PRESSURE

PSIG kg/cm2G 100/38 43 3.0 46 3.2 51 3.6

AMBIENT TEMP.

(ºF/ºC)

70/21 1555 705 80/27 1557 706 1562 708 1417 643 90/32 1558 707 1565 710 1440 653

70/21 80/27 90/32

70/21 1714 6.49 80/27 1764 6.68 1866 7.06 2449 9.27 90/32 1779 6.73 1937 7.33 2455 9.29

70/21 80/27 90/32

70/21 239 16.8 80/27 240 16.9 244 17.1 268 18.8 90/32 241 16.9 246 17.3 267 18.8

70/21 41 2.9 42 3.0 45 3.2 80/27 42 2.9 44 3.1 47 3.3 90/32 42 3.0 45 3.2 48 3.4

50/10 70/21 90/32

2270 2305 2332 2297 2351 2367 2305 2390 2411 2303 2395 2430

24 24 26 24 25 24 26 28 25 26 30

6.0 4.9 4.4

5.2 3.6 3.6

4.9 2.4 2.2

3.8 2.4 2.0

WATER TEMP. (ºF/ºC)

1558 707 1466 665

1779 6.73 2186 8.28

241 16.9 257 18.1

TOTAL HEAT OF REJECTION FROM CONDENSER 23,500 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] TOTAL HEAT OF REJECTION FROM COMPRESSOR 3,200 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] WATER FLOW FOR CONDENSER 111 gal./h [AT 100ºF (38ºC) / WT 90ºF (32ºC)] PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG

Page 78

13. KM-1601SRH with URC-21F Auxiliary Codes: R-0, R-1, and some S-1

This data applies to units with an 8 l/min water valve. The 8 l/min water valve is part number 3U0111-02 and has J248-032 stamped on the side of the valve facing the rear of the unit.

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) AMPERAGE 12.8 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2640(4.3) 2440(3.7) WATER gal./24HR (gal./100 lbs.) 255(17.3) 503(31.8) ICE PRODUCTION PER CYCLE 29.4 lbs. (13.3 kg) 1440 pcs. TOTAL REFRIGERANT CHARGE R404A, 24 lb. 14.6 oz. (11300g) REFRIGERANT CHARGE BY UNIT (Icemaker 15 lb. 3.4 oz. Cond. Unit 9 lb. 11.2 oz.)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1503 682 1439 653 1203 546 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 348 1.32 251 0.95 226 0.86 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 219 15.4 253 17.8 288 20.2 SUCTION PRESSURE

PSIG kg/cm2G 100/38 39 2.7 44 3.1 50 3.5

AMBIENT TEMP.

(ºF/ºC)

70/21 1583 718 80/27 1558 707 1507 684 1353 614 90/32 1550 703 1472 668 1332 604

70/21 80/27 90/32

70/21 503 1.90 80/27 448 1.69 335 1.27 336 1.27 90/32 430 1.63 255 0.96 240 0.91

70/21 80/27 90/32

70/21 201 14.1 80/27 211 14.9 233 16.4 254 17.8 90/32 215 15.1 248 17.4 269 18.9

70/21 36 2.5 38 2.7 41 2.9 80/27 38 2.6 41 2.9 44 3.1 90/32 38 2.7 43 3.0 47 3.3

50/10 70/21 90/32

2440 2499 2564 2485 2576 2633 2499 2640 2703 2507 2655 2760

22 23 26 23 25 28 23 26 29 24 27 31

6.7 5.7 5.4

5.9 4.3 4.6

5.7 3.2 3.2

4.6 3.2 3.2

WATER TEMP. (ºF/ºC)

1550 703 1435 651

430 1.63 396 1.50

215 15.1 235 16.5

TOTAL HEAT OF REJECTION FROM CONDENSER 24,600 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] TOTAL HEAT OF REJECTION FROM COMPRESSOR 3,300 BTU/h [AT 90ºF (32ºC) / W T 70ºF (21ºC)]

CONDENSER VOLUME 441 CU. IN (URC-21F)

Page 79

14. KM-1601SRH with URC-21F Auxiliary Codes: some S-1 and S-2 and Later

This data applies to units with a 15 l/min or 11 l/min water valve. The 15 l/min water valve is part number 3U0111-01 and has J248-030 stamped on the side of the valve facing the rear of the unit. The 11 l/min water valve is either part number 4A1176-04 or 4A5251-04 and has the part number stamped on the side of the valve facing the front of the unit.

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) AMPERAGE 12.8 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2700(4.30) 2610(4.00) WATER gal./24HR (gal./100 lbs.) 375(24.9) 785(50.2) ICE PRODUCTION PER CYCLE 31.2 lbs. (14.2 kg) 1440 pcs. TOTAL REFRIGERANT CHARGE R404A, 24 lb. 14.6 oz. (11300g) REFRIGERANT CHARGE BY UNIT (Icemaker 15 lb. 3.4 oz. Cond. Unit 9 lb. 11.2 oz.)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1512 686 1482 672 1317 597 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 519 1.97 361 1.37 266 1.01 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 230 16.2 262 18.4 296 20.8 SUCTION PRESSURE

PSIG kg/cm2G 100/38 42 3.0 46 3.2 51 3.6

AMBIENT TEMP.

(ºF/ºC)

70/21 1564 709 80/27 1551 703 1524 691 1415 642 90/32 1547 702 1505 683 1407 638

70/21 80/27 90/32

70/21 785 2.97 80/27 694 2.63 507 1.92 471 1.78 90/32 665 2.52 375 1.42 318 1.20

70/21 80/27 90/32

70/21 213 15.0 80/27 223 15.7 243 17.1 263 18.5 90/32 226 15.9 257 18.1 277 19.5

70/21 40 2.8 41 2.9 44 3.1 80/27 41 2.9 43 3.1 47 3.3 90/32 41 2.9 45 3.2 48 3.4

50/10 70/21 90/32

2610 2636 2684 2630 2671 2725 2636 2700 2752 2650 2712 2800

24 25 27 25 27 29 25 28 30 26 29 32

5.6 4.6 4.2

4.8 3.4 3.4

4.6 2.4 2.2

3.6 2.3 2.0

WATER TEMP. (ºF/ºC)

1547 702 1468 666

665 2.52 583 2.21

226 15.9 245 17.2

TOTAL HEAT OF REJECTION FROM CONDENSER 22,800 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] TOTAL HEAT OF REJECTION FROM COMPRESSOR 3,300 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] CONDENSER VOLUME 441 CU. IN (URC-21F)

Page 80

15. KM-1601SRH with URC-22F Auxiliary Codes: S-2 and Later

This data applies to units with an 11 l/min water valve. The 11 l/min water valve is either part number 4A1176-04 or 4A5251-04 and has the part number stamped on the side of the valve facing the front of the unit.

SPECIFICATION SHEE

AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral for 115V) AMPERAGE 12.8 A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2710(4.36) 2560(4.01) WATER gal./24HR (gal./100 lbs.) 352(23.6) 755(49.3) ICE PRODUCTION PER CYCLE 31.6 lbs. (14.3 kg) 1440 pcs. TOTAL REFRIGERANT CHARGE R404A, 22 lb. 14.8 oz. (10400g) REFRIGERANT CHARGE BY UNIT (Icemaker 15 lb. 3.4 oz. Cond. Unit 7 lb. 11.5 oz.)

PERFORMANCE DATA SHEE

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1475 669 1462 663 1261 572 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 493 1.87 338 1.28 241 0.91 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 224 15.8 257 18.1 292 20.5 SUCTION PRESSURE

PSIG kg/cm2G 100/38 42 3.0 46 3.3 51 3.6

AMBIENT TEMP.

(ºF/ºC)

70/21 1531 694 1519 689 1426 647 80/27 1522 690 1503 682 1368 620 90/32 1519 689 1490 676 1371 622

70/21 80/27 90/32

70/21 755 2.86 80/27 665 2.52 481 1.82 444 1.68 90/32 637 2.41 352 1.33 294 1.11

70/21 80/27 90/32

70/21 207 14.5 80/27 217 15.2 237 16.7 258 18.1 90/32 220 15.5 252 17.7 273 19.2

70/21 40 2.8 42 2.9 44 3.1 80/27 41 2.9 44 3.1 47 3.3 90/32 42 2.9 46 3.2 49 3.4

50/10 70/21 90/32

2560 2604 2645 2593 2662 2693 2604 2710 2746 2606 2719 2780

25 26 28 26 28 26 29 31 27 29 34

5.5 4.6 4.1

4.8 3.5 3.4

4.6 2.6 2.3

3.6 2.5 2.0

WATER TEMP. (ºF/ºC)

637 2.41 555 2.10

220 15.5 240 16.9

TOTAL HEAT OF REJECTION FROM CONDENSER 21,000 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] TOTAL HEAT OF REJECTION FROM COMPRESSOR 2,800 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] CONDENSER VOLUME 214 CU. IN (URC-22F)

Page 81

16. KM-1601SRH3 with URC-21F Auxiliary Codes: R-0, R-1, and some S-1

This data applies to units with an 8 l/min water valve. The 8 l/min water valve is part number 3U0111-02 and has J248-032 stamped on the side of the valve facing the rear of the unit.

SPECIFICATION SHEE

AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 7.9 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2580(4.3) 2450(3.7) WATER gal./24HR (gal./100 lbs.) 261(17.9) 504(31.6) ICE PRODUCTION PER CYCLE 29.4 lbs. (13.3 kg) 1440 pcs. TOTAL REFRIGERANT CHARGE R404A, 24 lb. 14.6 oz. (11300g) REFRIGERANT CHARGE BY UNIT (Icemaker 15 lb. 3.4 oz. Cond. Unit 9 lb. 11.2 oz.)

PERFORMANCE DATA SHEE

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1510 685 1426 647 1184 537 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 351 1.33 256 0.97 226 0.86 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 221 15.5 253 17.8 293 20.6 SUCTION PRESSURE

PSIG kg/cm2G 100/38 40 2.8 44 3.1 51 3.6

208-230/60/3 (3

wire with neutral

70/21 1596 724 1556 706 1436 651 80/27 1565 710 1503 682 1347 611 90/32 1556 706 1459 662 1316 597

70/21 80/27 90/32

70/21 504 1.91 80/27 450 1.70 339 1.28 336 1.27 90/32 433 1.64 261 0.99 243 0.92

70/21 80/27 90/32

70/21 202 14.2 80/27 212 14.9 233 16.3 257 18.1 90/32 215 15.1 247 17.4 271 19.1

70/21 37 2.6 39 2.7 42 3.0 80/27 38 2.7 41 2.9 45 3.2 90/32 39 2.7 43 3.0 47 3.3

50/10 70/21 90/32

2450 2488 2555 2479 2538 2613 2488 2580 2653 2506 2597 2720

22 23 26 23 25 28 23 26 29 24 27 32

6.6 5.6 5.3

5.8 4.3 4.5

5.6 3.2 3.2

4.5 3.2 3.2

WATER TEMP. (ºF/ºC)

433 1.64 396 1.50

215 15.1 237 16.7

TOTAL HEAT OF REJECTION FROM CONDENSER 24,300 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] TOTAL HEAT OF REJECTION FROM COMPRESSOR 3,200 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] CONDENSER VOLUME 441 CU. IN (URC-21F)

Page 82

17. KM-1601SRH3 with URC-21F Auxiliary Codes: some S-1 and S-2 and Later

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 7.9 A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2960(4.70) 2580(3.90) WATER gal./24HR (gal./100 lbs.) 363(24.0) 781(49.3) ICE PRODUCTION PER CYCLE 31.2 lbs. (14.2 kg) 1440 pcs. TOTAL REFRIGERANT CHARGE R404A, 24 lb. 14.6 oz. (11300g) REFRIGERANT CHARGE BY UNIT (Icemaker 15 lb. 3.4 oz. Cond. Unit 9 lb. 11.2 oz.)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1520 689 1482 672 1273 577 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 514 1.95 352 1.33 276 1.05 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 221 15.5 253 17.8 293 20.6 SUCTION PRESSURE

PSIG kg/cm2G 100/38 40 2.8 44 3.1 51 3.6

AMBIENT TEMP.

(ºF/ºC)

70/21 1585 719 80/27 1568 711 1535 696 1396 633 90/32 1563 709 1511 685 1387 629

70/21 80/27 90/32

70/21 781 2.96 80/27 688 2.60 497 1.88 476 1.80 90/32 659 2.49 363 1.37 318 1.20

70/21 80/27 90/32

70/21 202 14.2 80/27 212 14.9 233 16.3 257 18.1 90/32 215 15.1 247 17.4 271 19.1

70/21 37 2.6 39 2.7 42 3.0 80/27 38 2.7 41 2.9 45 3.2 90/32 39 2.7 43 3.0 47 3.3

50/10 70/21 90/32

2580 2691 2712 2665 2838 2785 2691 2960 2939 2651 2955 2920

24 25 27 25 27 29 25 28 30 26 29 32

5.5 4.6 4.1

4.8 3.4 3.4

4.6 2.4 2.2

3.6 2.4 2.0

WATER TEMP. (ºF/ºC)

1563 709 1464 664

659 2.49 585 2.21

215 15.1 237 16.7

TOTAL HEAT OF REJECTION FROM CONDENSER 22,000 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] TOTAL HEAT OF REJECTION FROM COMPRESSOR 3,200 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] CONDENSER VOLUME 441 CU. IN (URC-21F)

Page 83

18. KM-1601SRH3 with URC-22F Auxiliary Codes: S-2 and Later

SPECIFICATION SHEE

AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 7.9 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2780(4.46) 2490(3.90) WATER gal./24HR (gal./100 lbs.) 348(23.2) 704(46.0) ICE PRODUCTION PER CYCLE 32.1 lbs. (14.6 kg) 1440 pcs. TOTAL REFRIGERANT CHARGE R404A, 22 lb. 14.8 oz. (10400g) REFRIGERANT CHARGE BY UNIT (Icemaker 15 lb. 3.4 oz. Cond. Unit 7 lb. 11.5 oz.)

PERFORMANCE DATA SHEE

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1468 666 1465 665 1231 558 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 474 1.79 337 1.27 259 0.98 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 233 16.4 279 19.6 283 19.9 SUCTION PRESSURE

PSIG kg/cm2G 100/38 43 3.0 48 3.4 53 3.7

AMBIENT TEMP.

(ºF/ºC)

70/21 1530 694 1521 690 1414 641 80/27 1523 691 1508 684 1349 612 90/32 1521 690 1498 679 1359 616

70/21 80/27 90/32

70/21 704 2.66 80/27 624 2.36 462 1.75 435 1.65 90/32 599 2.27 348 1.32 301 1.14

70/21 80/27 90/32

70/21 220 15.4 80/27 233 16.4 260 18.3 258 18.2 90/32 237 16.7 279 19.6 281 19.8

70/21 40 2.8 42 3.0 45 3.2 80/27 42 2.9 45 3.2 48 3.4 90/32 42 3.0 47.6 3.3 50 3.5

50/10 70/21 90/32

2490 2575 2599 2555 2687 2659 2575 2780 2775 2548 2779 2770

26 27 29 26 28 27 29 32 27 30 34

5.3 4.5 4.1

4.7 3.5 3.4

4.5 2.7 2.4

3.6 2.6 2.2

WATER TEMP. (ºF/ºC)

599 2.27 531 2.01

237 16.7 244 17.2

TOTAL HEAT OF REJECTION FROM CONDENSER 26,400 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] TOTAL HEAT OF REJECTION FROM COMPRESSOR 3,500 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] CONDENSER VOLUME 214 CU. IN (URC-22F)

Page 84

19. KM-1900SAH

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral 115V) AMPERAGE 14.4 A (5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2670(4.1) 2480(3.2) WATER gal./24HR (gal./100 lbs.) 293(18.8) 579(31.0) ICE PRODUCTION PER CYCLE 45.3 lbs. (20.5 kg) 2160pcs. REFRIGERANT CHARGE R404A, 4 lb. 10.1 oz. (2100g)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1744 791 1526 692 1278 580 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 396 1.50 286 1.08 232 0.88 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 266 18.7 321 22.6 362 25.5 SUCTION PRESSURE

PSIG kg/cm2G 100/38 51 3.6 53 3.8 57 4.0

AMBIENT TEMP.

(ºF/ºC)

70/21 1867 847 80/27 1798 816 1659 752 1511 685 90/32 1777 806 1560 708 1413 641

70/21 80/27 90/32

70/21 579 2.19 80/27 515 1.95 385 1.46 369 1.40 90/32 495 1.88 293 1.11 261 0.99

70/21 80/27 90/32

70/21 241 16.9 80/27 258 18.1 291 20.5 314 22.1 90/32 263 18.5 315 22.1 339 23.9

70/21 49 3.4 50 3.5 52 3.7 80/27 50 3.5 52 3.6 54 3.8 90/32 50 3.5 53 3.7 55 3.9

50/10 70/21 90/32

2480 2536 2573 2522 2609 2625 2536 2670 2696 2530 2676 2720

32 34 39 34 37 42 34 40 44 36 41 49

4.8 4.2 4.0

4.4 3.4 3.5

4.2 2.8 2.7

3.6 2.7 2.7

WATER TEMP. (ºF/ºC)

1777 806 1638 743

495 1.88 444 1.68

263 18.5 288 20.3

TOTAL HEAT OF REJECTION FROM CONDENSER

23,800 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 85

20. KM-1900SAH3

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 8.59 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2610(4.1) 2510(3.2) WATER gal./24HR (gal./100 lbs.) 260(17.0) 548(29.5) ICE PRODUCTION PER CYCLE 45.5 lbs. (20.6 kg) 2160pcs. REFRIGERANT CHARGE R404A, 4 lb. 10.1 oz. (2100g)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1738 788 1499 680 1277 579 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 368 1.39 255 0.97 220 0.83 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 262 18.5 322 22.6 359 25.2 SUCTION PRESSURE

PSIG kg/cm2G 100/38 52 3.6 55 3.8 59 4.1

AMBIENT TEMP.

(ºF/ºC)

70/21 1859 843 80/27 1786 810 1636 742 1507 684 90/32 1763 800 1530 694 1398 634

70/21 80/27 90/32

70/21 548 2.08 80/27 484 1.83 353 1.34 350 1.33 90/32 464 1.76 260 0.98 239 0.91

70/21 80/27 90/32

70/21 237 16.7 80/27 255 17.9 291 20.5 311 21.8 90/32 260 18.3 317 22.3 339 23.8

70/21 50 3.5 51 3.6 53 3.8 80/27 51 3.6 53 3.7 55 3.9 90/32 51 3.6 54 3.8 57 4.0

50/10 70/21 90/32

2510 2539 2611 2532 2578 2667 2539 2610 2693 2564 2630 2770

32 34 38 34 37 41 34 40 44 35 41 48

4.5 4.0 3.8

4.1 3.3 3.4

4.0 2.7 2.7

3.4 2.7 2.7

WATER TEMP. (ºF/ºC)

1763 800 1633 741

464 1.76 421 1.59

260 18.3 284 20.0

TOTAL HEAT OF REJECTION FROM CONDENSER

23,700 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 86

21. KM-1900SWH

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral 115V) AMPERAGE 12.5 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2390(3.1) 2330(3.0) POTABLE WATER gal./24HR (gal./100 lbs.) 348(18.8) 628(33.5) WATER COOLED CONDENSER 1832(99) 1022(55) gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE 47 lbs. (21.3 kg) 2160pcs. REFRIGERANT CHARGE R404A, 3 lb. 1.4 oz. (1400g)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1800 816 1809 820 1511 685 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 2103 7.96 2277 8.62 2983 11.29 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 247 17.3 253 17.8 279 19.6 SUCTION PRESSURE

PSIG kg/cm2G 100/38 50 3.5 50 3.5 53 3.7

AMBIENT TEMP.

(ºF/ºC)

70/21 1876 851 80/27 1870 848 1858 843 1655 751 90/32 1868 847 1850 839 1673 759

70/21 80/27 90/32

70/21 1650 6.25 80/27 1768 6.69 2009 7.61 2455 9.29 90/32 1805 6.83 2179 8.25 2598 9.83

70/21 80/27 90/32

70/21 238 16.7 80/27 240 16.9 245 17.3 263 18.5 90/32 241 17.0 249 17.5 265 18.6

70/21 49 3.4 49 3.5 51 3.6 80/27 49 3.5 50 3.5 51 3.6 90/32 49 3.5 50 3.5 52 3.6

50/10 70/21 90/32

2330 2348 2377 2343 2371 2403 2348 2390 2421 2355 2397 2450

32 33 35 33 34 33 35 38 34 35 41

4.6 4.1 3.9

4.2 3.4 3.4

4.1 2.8 2.7

3.5 2.8 2.7

WATER TEMP. (ºF/ºC)

1868 847 1734 787

1805 6.83 2168 8.21

241 17.0 254 17.9

TOTAL HEAT OF REJECTION FROM CONDENSER TOTAL HEAT OF REJECTION FROM COMPRESSOR 3,200 BTU/h [AT 90ºF (32ºC) / W T 70ºF (21ºC)] WATER FLOW FOR CONDENSER 113 gal./h [AT 100ºF (38ºC) / WT 90ºF (32ºC)] PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG

26,800 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 87

22. KM-1900SWH3

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 8.4 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2490(3.3) 2410(3.2) POTABLE WATER gal./24HR (gal./100 lbs.) 341(18.8) 584(32.0) WATER COOLED CONDENSER 1796(99) 982(54) gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE 45.4 lbs. (20.6 kg) 2160pcs. REFRIGERANT CHARGE R404A, 3 lb. 1.4 oz. (1400g)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1754 796 1774 805 1484 673 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 2063 7.81 2249 8.51 3054 11.56 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 248 17.4 250 17.6 280 19.7 SUCTION PRESSURE

PSIG kg/cm2G 100/38 51 3.6 50 3.5 53 3.7

AMBIENT TEMP.

(ºF/ºC)

70/21 1825 828 80/27 1823 827 1818 824 1619 734 90/32 1822 826 1814 823 1642 745

70/21 80/27 90/32

70/21 1566 5.93 80/27 1693 6.41 1953 7.39 2465 9.33 90/32 1733 6.56 2137 8.09 2615 9.90

70/21 80/27 90/32

70/21 239 16.8 80/27 241 16.9 244 17.1 264 18.5 90/32 241 16.9 246 17.3 264 18.5

70/21 50 3.5 50 3.5 51 3.6 80/27 50 3.5 50 3.5 52 3.6 90/32 50 3.5 50 3.5 52 3.6

50/10 70/21 90/32

2410 2433 2461 2428 2464 2489 2433 2490 2516 2437 2496 2540

32 33 35 32 34 37 33 34 38 34 35 41

4.7 4.1 3.9

4.2 3.4 3.5

4.1 2.7 2.7

3.5 2.7 2.7

WATER TEMP. (ºF/ºC)

1822 826 1693 768

1733 6.56 2144 8.12

241 16.9 255 17.9

TOTAL HEAT OF REJECTION FROM CONDENSER TOTAL HEAT OF REJECTION FROM COMPRESSOR 3,200 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] WATER FLOW FOR CONDENSER 117 gal./h [AT 100ºF (38ºC) / WT 90ºF (32ºC)] PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG

27,100 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 88

23. KM-1900SRH with URC-21F

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral 115V) AMPERAGE 14.9 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2630(3.9) 2460(3.1) WATER gal./24HR (gal./100 lbs.) 323(20.0) 585(30.5) ICE PRODUCTION PER CYCLE 46.3 lbs. (21 kg) 2160pcs. TOTAL REFRIGERANT CHARGE R404A, 23 lb. 7.7 oz. (10650g) REFRIGERANT CHARGE BY UNIT (Icemaker 13 lbs. 12.5 oz. Cond. Unit 9 lbs. 11.2 oz.)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1786 810 1577 715 1299 589 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 419 1.58 317 1.20 274 1.04 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 231 16.2 271 19.1 301 21.2 SUCTION PRESSURE

PSIG kg/cm2G 100/38 51 3.6 53 3.8 57 4.0

AMBIENT TEMP.

(ºF/ºC)

70/21 1915 869 80/27 1848 838 1712 777 1543 700 90/32 1827 829 1616 733 1451 658

70/21 80/27 90/32

70/21 585 2.21 80/27 526 1.99 407 1.54 397 1.50 90/32 508 1.92 323 1.22 298 1.13

70/21 80/27 90/32

70/21 212 14.9 80/27 224 15.8 249 17.5 266 18.7 90/32 228 16.0 267 18.8 285 20.0

70/21 49 3.4 50 3.5 52 3.7 80/27 50 3.5 52 3.6 54 3.8 90/32 50 3.5 53 3.7 55 3.9

50/10 70/21 90/32

2460 2510 2569 2498 2575 2629 2510 2630 2687 2518 2643 2740

31 33 37 33 36 40 33 38 43 34 39 46

4.9 4.4 4.3

4.5 3.9 4.0

4.4 3.4 3.4

4.0 3.4 3.4

WATER TEMP. (ºF/ºC)

1827 829 1676 760

508 1.92 464 1.76

228 16.0 247 17.3

TOTAL HEAT OF REJECTION FROM CONDENSER TOTAL HEAT OF REJECTION FROM COMPRESSOR CONDENSER VOLUME 441 CU. IN (URC-21F)

27,400 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

3,300 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 89

24. KM-1900SRH with URC-22F

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral 115V) AMPERAGE 14.9 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2790(4.09) 2500(3.23) WATER gal./24HR (gal./100 lbs.) 328(20.0) 609(32.8) ICE PRODUCTION PER CYCLE 46 lbs. (20.9 kg) 2160pcs. TOTAL REFRIGERANT CHARGE R404A, 21 lb. 7.9 oz. (9750g) REFRIGERANT CHARGE BY UNIT (Icemaker 13 lbs. 12.5 oz. Cond. Unit 7 lbs. 11.5 oz.)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1738 789 1597 724 1289 585 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 428 1.62 320 1.21 262 0.99 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 225 15.8 268 18.8 295 20.7 SUCTION PRESSURE

PSIG kg/cm2G 100/38 50 3.5 51 3.6 55 3.9

AMBIENT TEMP.

(ºF/ºC)

70/21 1857 842 80/27 1809 820 1710 776 1514 687 90/32 1793 814 1640 744 1457 661

70/21 80/27 90/32

70/21 609 2.30 80/27 546 2.07 418 1.58 399 1.51 90/32 527 1.99 328 1.24 293 1.11

70/21 80/27 90/32

70/21 207 14.6 80/27 220 15.4 246 17.3 260 18.3 90/32 224 15.7 264 18.6 280 19.7

70/21 49 3.4 50 3.5 51 3.6 80/27 49 3.5 50 3.5 53 3.7 90/32 50 3.5 51 3.6 53 3.7

50/10 70/21 90/32

2500 2585 2605 2565 2697 2663 2585 2790 2780 2556 2788 2770

32 34 38 34 36 41 34 38 42 35 39 46

5.4 4.9 4.6

5.0 4.1 4.2

4.9 3.5 3.4

4.2 3.5 3.4

WATER TEMP. (ºF/ºC)

1793 814 1636 742

527 1.99 474 1.79

224 15.7 241 17.0

TOTAL HEAT OF REJECTION FROM CONDENSER TOTAL HEAT OF REJECTION FROM COMPRESSOR CONDENSER VOLUME 214 CU. IN (URC-22F)

26,500 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

3,200 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 90

25. KM-1900SRH3 with URC-21F

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 11.0 A ( 5 Min. Freeze AT 104°F / WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2840(4.1) 2680(3.3) WATER gal./24HR (gal./100 lbs.) 332(20.0) 590(30.0) ICE PRODUCTION PER CYCLE 46.5 lbs. (21.1 kg) 2160pcs. TOTAL REFRIGERANT CHARGE R404A, 23 lb. 7.7 oz. (10650g) REFRIGERANT CHARGE BY UNIT (Icemaker 13 lbs. 12.5 oz. Cond. Unit 9 lbs. 11.2 oz.)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1827 829 1617 733 1304 591 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 425 1.61 325 1.23 278 1.05 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 220 15.5 263 18.5 289 20.3 SUCTION PRESSURE

PSIG kg/cm2G 100/38 50 3.5 51 3.6 55 3.9

AMBIENT TEMP.

(ºF/ºC)

70/21 1965 891 80/27 1897 860 1758 797 1566 710 90/32 1876 851 1660 753 1474 669

70/21 80/27 90/32

70/21 590 2.23 80/27 533 2.02 415 1.57 401 1.52 90/32 515 1.95 332 1.26 304 1.15

70/21 80/27 90/32

70/21 202 14.2 80/27 215 15.1 241 16.9 255 17.9 90/32 219 15.4 259 18.2 275 19.3

70/21 49 3.4 50 3.5 51 3.6 80/27 49 3.5 50 3.5 53 3.7 90/32 50 3.5 51 3.6 53 3.7

50/10 70/21 90/32

2680 2727 2789 2716 2789 2849 2727 2840 2903 2738 2855 2960

31 33 37 33 36 40 33 38 42 34 39 46

4.9 4.4 4.3

4.5 3.8 4.0

4.4 3.4 3.4

4.0 3.4 3.4

WATER TEMP. (ºF/ºC)

1876 851 1708 775

515 1.95 469 1.77

219 15.4 236 16.6

TOTAL HEAT OF REJECTION FROM CONDENSER TOTAL HEAT OF REJECTION FROM COMPRESSOR CONDENSER VOLUME 441 CU. IN (URC-21F)

26,100 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

3,200 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 91

26. KM-1900SRH3 with URC-22F

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 11.0 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2780(4.04) 2640(3.33) WATER gal./24HR (gal./100 lbs.) 345(20.9) 634(33.3) ICE PRODUCTION PER CYCLE 46.8 lbs. (21.2 kg) 2160pcs. TOTAL REFRIGERANT CHARGE R404A, 21 lb. 7.9 oz. (9750g) REFRIGERANT CHARGE BY UNIT (Icemaker 13 lbs. 12.5 oz. Cond. Unit 7 lbs. 11.5 oz.)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1782 808 1610 730 1323 600 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 448 1.70 337 1.28 280 1.06 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 226 15.9 260 18.3 291 20.5 SUCTION PRESSURE

PSIG kg/cm2G 100/38 51 3.6 49 3.5 53 3.7

AMBIENT TEMP.

(ºF/ºC)

70/21 1903 863 80/27 1847 838 1731 785 1552 704 90/32 1829 830 1650 748 1480 671

70/21 80/27 90/32

70/21 634 2.40 80/27 569 2.15 438 1.66 420 1.59 90/32 549 2.08 345 1.31 311 1.18

70/21 80/27 90/32

70/21 209 14.7 80/27 219 15.4 241 16.9 259 18.2 90/32 223 15.7 256 18.0 274 19.3

70/21 50 3.5 50 3.5 51 3.6 80/27 50 3.5 49 3.5 52 3.6 90/32 50 3.5 49 3.4 51 3.6

50/10 70/21 90/32

2640 2681 2656 2671 2735 2664 2681 2780 2728 2648 2768 2680

32 34 38 33 37 34 39 43 35 40 46

5.7 5.0 4.8

5.2 4.2 4.3

5.0 3.5 3.4

4.3 3.5 3.4

WATER TEMP. (ºF/ºC)

1829 830 1678 761

549 2.08 496 1.88

223 15.7 241 16.9

TOTAL HEAT OF REJECTION FROM CONDENSER TOTAL HEAT OF REJECTION FROM COMPRESSOR CONDENSER VOLUME 214 CU. IN (URC-22F)

25,700 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

3,100 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 92

27. KM-2100SWH3

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 10.5 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2860(3.35) 2740(3.14) POTABLE WATER gal./24HR (gal./100 lbs.) 410(20.0) 673(32.1) WATER COOLED CONDENSER 1948(95) 1121(54) gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE 46.8 lbs. (21.2 kg) 2160pcs. REFRIGERANT CHARGE R404A, 3 lb. 6.7 oz. (1550g)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 2005 910 2003 908 1662 754 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 2225 8.42 2424 9.18 2905 11.00 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 255 17.9 263 18.5 296 20.8 SUCTION PRESSURE

PSIG kg/cm2G 100/38 49 3.4 49 3.5 51 3.6

AMBIENT TEMP.

(ºF/ºC)

70/21 2096 951 80/27 2086 946 2065 937 1834 832 90/32 2083 945 2050 930 1848 838

70/21 80/27 90/32

70/21 1794 6.79 80/27 1920 7.27 2176 8.24 2466 9.33 90/32 1959 7.42 2358 8.92 2643 10.00

70/21 80/27 90/32

70/21 244 17.2 80/27 247 17.4 254 17.8 275 19.4 90/32 248 17.4 258 18.1 278 19.5

70/21 48 3.4 48 3.4 49 3.5 80/27 48 3.4 49 3.4 50 3.5 90/32 48 3.4 49 3.4 50 3.5

50/10 70/21 90/32

2740 2775 2791 2767 2821 2819 2775 2860 2865 2767 2861 2870

28 29 31 29 30 29 31 33 30 31 36

4.9 4.4 4.0

4.5 3.7 3.6

4.4 3.2 2.9

3.8 3.1 2.7

WATER TEMP. (ºF/ºC)

2083 945 1927 874

1959 7.42 2226 8.43

248 17.4 264 18.6

TOTAL HEAT OF REJECTION FROM CONDENSER TOTAL HEAT OF REJECTION FROM COMPRESSOR 3,800 BTU/h [AT 90ºF (32ºC) / W T 70ºF (21ºC)] WATER FLOW FOR CONDENSER 109 gal./h [AT 100ºF (38ºC) / WT 90ºF (32ºC)] PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG

31,100 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 93

28. KM-2100SRH3 with URC-22F

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 12.5 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 3210(4.26) 2900(3.42) WATER gal./24HR (gal./100 lbs.) 382(21.1) 687(33.8) ICE PRODUCTION PER CYCLE 46.8 lbs. (21.2 kg) 2160pcs. TOTAL REFRIGERANT CHARGE R404A, 16 lb. 1.5 oz. (7300g) REFRIGERANT CHARGE BY UNIT (Icemaker 8 lbs. 6 oz. Cond. Unit 7 lbs. 11.5 oz.)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1908 866 1764 800 1432 650 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 490 1.85 372 1.41 302 1.14 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 236 16.6 274 19.3 306 21.5 SUCTION PRESSURE

PSIG kg/cm2G 100/38 46 3.3 49 3.5 52 3.7

AMBIENT TEMP.

(ºF/ºC)

70/21 2034 923 80/27 1984 900 1882 854 1670 758 90/32 1968 893 1810 821 1613 732

70/21 80/27 90/32

70/21 687 2.60 80/27 619 2.34 480 1.82 455 1.72 90/32 598 2.26 382 1.45 340 1.29

70/21 80/27 90/32

70/21 217 15.3 80/27 229 16.1 253 17.8 271 19.0 90/32 233 16.3 270 19.0 289 20.3

70/21 45 3.2 46 3.2 48 3.4 80/27 46 3.2 48 3.4 49 3.5 90/32 46 3.2 49 3.4 51 3.6

50/10 70/21 90/32

2900 2991 3048 2969 3110 3130 2991 3210 3246 2979 3219 3280

29 30 34 30 33 37 30 35 38 32 36 42

5.4 4.9 4.6

5.0 4.2 4.2

4.9 3.6 3.5

4.3 3.5 3.4

WATER TEMP. (ºF/ºC)

1968 893 1800 817

598 2.26 538 2.04

233 16.3 252 17.7

TOTAL HEAT OF REJECTION FROM CONDENSER TOTAL HEAT OF REJECTION FROM COMPRESSOR CONDENSER VOLUME 214 CU. IN (URC-22F)

30,400 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

3,800 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 94

29. KM-2500SWH3

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 14.2 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 3720(3.78) 3510(3.5) WATER gal./24HR (gal./100 lbs.) 459(19.4) 744(30.9) WATER COOLED CONDENSER 2389(101) 1430(59) gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE 46.3 lbs. (21 kg) 2160pcs. REFRIGERANT CHARGE R404A, 4 lb. 11.5 oz. (2140g)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 2327 1055 2323 1054 2018 915 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 2685 10.16 2924 11.07 3473 13.15 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 259 18.2 267 18.8 314 22.1 SUCTION PRESSURE

PSIG kg/cm2G 100/38 41 2.9 42 2.9 47 3.3

AMBIENT TEMP.

(ºF/ºC)

70/21 2408 1092 80/27 2398 1088 2379 1079 2172 985 90/32 2395 1087 2365 1073 2184 991

70/21 80/27 90/32

70/21 2174 8.23 80/27 2325 8.80 2631 9.96 2959 11.20 90/32 2372 8.98 2847 10.78 3173 12.01

70/21 80/27 90/32

70/21 245 17.2 80/27 249 17.5 256 18.0 287 20.2 90/32 250 17.6 261 18.4 289 20.3

70/21 39 2.7 40 2.8 42 3.0 80/27 39 2.8 40 2.8 44 3.1 90/32 40 2.8 41 2.9 44 3.1

50/10 70/21 90/32

3510 3572 3615 3557 3653 3673 3572 3720 3751 3566 3727 3780

24 24 26 24 25 24 26 28 25 26 30

5.0 4.4 4.1

4.6 3.7 3.6

4.4 3.1 2.9

3.8 3.1 2.7

WATER TEMP. (ºF/ºC)

2395 1087 2256 1024

2372 8.98 2679 10.14

250 17.6 272 19.1

TOTAL HEAT OF REJECTION FROM CONDENSER TOTAL HEAT OF REJECTION FROM COMPRESSOR 4,900 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] WATER FLOW FOR CONDENSER 130 gal./h [AT 100ºF (38ºC) / WT 90ºF (32ºC)] PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG

35,500 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 95

30. KM-2500SRH3 with URC-23F

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 17.7 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 4190(4.5) 3780(3.7) WATER gal./24HR (gal./100 lbs.) 416(18.6) 791(32.6) ICE PRODUCTION PER CYCLE 46.1 lbs. (20.9 kg) 2160pcs. TOTAL REFRIGERANT CHARGE R404A, 24 lb. 7.5 oz. (11100g) REFRIGERANT CHARGE BY UNIT (Icemaker 14 lbs. 12.3 oz. Cond. Unit 9 lbs. 11.2 oz.)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 2301 1044 2186 992 1837 833 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 551 2.09 406 1.54 334 1.27 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 236 16.6 277 19.5 319 22.4 SUCTION PRESSURE

PSIG kg/cm2G 100/38 37 2.6 39 2.8 43 3.0

AMBIENT TEMP.

(ºF/ºC)

70/21 2424 1100 80/27 2382 1080 2296 1041 2069 939 90/32 2369 1074 2235 1014 2028 920

70/21 80/27 90/32

70/21 791 2.99 80/27 707 2.68 536 2.03 515 1.95 90/32 681 2.58 416 1.57 373 1.41

70/21 80/27 90/32

70/21 214 15.0 80/27 227 15.9 253 17.8 277 19.5 90/32 231 16.2 271 19.1 296 20.8

70/21 35 2.5 36 2.5 38 2.7 80/27 36 2.5 38 2.7 40 2.8 90/32 36 2.5 39 2.7 41 2.9

50/10 70/21 90/32

3780 3900 4048 3872 4058 4197 3900 4190 4336 3924 4224 4470

25 26 28 26 27 30 26 27 30 27 28 32

5.0 4.3 4.1

4.5 3.5 3.6

4.3 2.8 2.7

3.6 2.8 2.7

WATER TEMP. (ºF/ºC)

2369 1074 2196 996

681 2.58 614 2.32

231 16.2 255 17.9

TOTAL HEAT OF REJECTION FROM CONDENSER TOTAL HEAT OF REJECTION FROM COMPRESSOR CONDENSER VOLUME 441 CU. IN (URC-23F)

40,600 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

5,600 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 96

31. KMH-2000SWH

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral 115V) AMPERAGE 12.1 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2420(3.3) 2410(3.2) POTABLE WATER gal./24HR (gal./100 lbs.) 308(17.5) 535(29.4) WATER COOLED CONDENSER 1484(84) 929(51) gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE 45.4 lbs. (20.6 kg) 2160pcs. REFRIGERANT CHARGE R404A, 3 lb. 1.4 oz. (1400g)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1753 795 1728 784 1497 679 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 1817 6.88 1906 7.22 2731 10.34 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 255 17.9 260 18.3 280 19.7 SUCTION PRESSURE

PSIG kg/cm2G 100/38 51 3.6 52 3.7 55 3.9

AMBIENT TEMP.

(ºF/ºC)

70/21 1821 826 80/27 1807 820 1780 807 1625 737 90/32 1803 818 1760 798 1623 736

70/21 80/27 90/32

70/21 1464 5.54 80/27 1537 5.82 1686 6.38 2229 8.44 90/32 1560 5.91 1792 6.78 2281 8.63

70/21 80/27 90/32

70/21 248 17.4 80/27 250 17.6 254 17.9 267 18.8 90/32 251 17.6 257 18.1 269 18.9

70/21 50 3.5 51 3.6 52 3.7 80/27 50 3.5 51 3.6 53 3.7 90/32 51 3.6 52 3.7 54 3.8

50/10 70/21 90/32

2410 2413 2445 2412 2417 2464 2413 2420 2462 2429 2430 2500

32 33 35 33 34 37 33 35 37 34 35 40

4.4 3.9 3.8

4.0 3.2 3.4

3.9 2.7 2.7

3.4 2.7 2.7

WATER TEMP. (ºF/ºC)

1803 818 1695 769

1560 5.91 1956 7.40

251 17.6 260 18.3

TOTAL HEAT OF REJECTION FROM CONDENSER TOTAL HEAT OF REJECTION FROM COMPRESSOR 3,300 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] WATER FLOW FOR CONDENSER 103 gal./h [AT 100ºF (38ºC) / WT 90ºF (32ºC)] PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG

28,000 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 97

32. KMH-2000SWH3

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 7.7 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2330(3.2) 2280(2.9) POTABLE WATER gal./24HR (gal./100 lbs.) 296(17.1) 540(29.0) WATER COOLED CONDENSER 1369(79) 1001(54) gal./24HR (gal./100 lbs.) ICE PRODUCTION PER CYCLE 48.1 lbs. (21.8 kg) 2160pcs. REFRIGERANT CHARGE R404A, 3 lb. 1.4 oz. (1400g)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1767 801 1690 767 1409 639 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 1822 6.90 1818 6.88 2914 11.03 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 263 18.5 267 18.8 283 19.9 SUCTION PRESSURE

PSIG kg/cm2G 100/38 51 3.6 51 3.6 53 3.7

AMBIENT TEMP.

(ºF/ºC)

70/21 1861 844 80/27 1832 831 1771 804 1588 720 90/32 1822 827 1729 784 1562 709

70/21 80/27 90/32

70/21 1541 5.83 80/27 1569 5.94 1625 6.15 2371 8.97 90/32 1577 5.97 1665 6.30 2316 8.77

70/21 80/27 90/32

70/21 258 18.1 80/27 260 18.2 263 18.5 273 19.2 90/32 260 18.3 265 18.6 274 19.3

70/21 50 3.5 50 3.5 51 3.6 80/27 50 3.5 51 3.6 52 3.6 90/32 50 3.5 51 3.6 52 3.7

50/10 70/21 90/32

2280 2295 2303 2291 2314 2316 2295 2330 2335 2293 2331 2340

34 35 38 35 36 35 37 40 36 38 43

4.5 4.0 3.8

4.1 3.4 3.4

4.0 2.8 2.7

3.5 2.8 2.7

WATER TEMP. (ºF/ºC)

1822 827 1685 764

1577 5.97 2074 7.85

260 18.3 268 18.8

TOTAL HEAT OF REJECTION FROM CONDENSER TOTAL HEAT OF REJECTION FROM COMPRESSOR 3,200 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)] WATER FLOW FOR CONDENSER 111 gal./h [AT 100ºF (38ºC) / WT 90ºF (32ºC)] PRESSURE DROP OF COOLING WATER LINE less than 10 PSIG

26,600 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 98

33. KMH-2000SRH with URC-22F

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/1 (3 wire with neutral 115V) AMPERAGE 14.9 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 30 A MAXIMUM FUSE SIZE 30 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2680(3.8) 2570(3.2) WATER gal./24HR (gal./100 lbs.) 307(18.1) 570(29.3) ICE PRODUCTION PER CYCLE 47.7 lbs. (21.6 kg) 2160pcs. TOTAL REFRIGERANT CHARGE R404A, 16 lb. 1.5 oz. (7300g) REFRIGERANT CHARGE BY UNIT (Icemaker 8 lbs. 6 oz. Cond. Unit 7 lbs. 11.5 oz.)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1834 832 1660 753 1418 643 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 402 1.52 300 1.14 254 0.96 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 228 16.0 264 18.6 295 20.7 SUCTION PRESSURE

PSIG kg/cm2G 100/38 49 3.5 51 3.6 55 3.9

AMBIENT TEMP.

(ºF/ºC)

70/21 1944 882 80/27 1888 856 1774 805 1626 738 90/32 1871 849 1694 768 1550 703

70/21 80/27 90/32

70/21 570 2.16 80/27 511 1.93 391 1.48 379 1.43 90/32 493 1.86 307 1.16 279 1.06

70/21 80/27 90/32

70/21 210 14.8 80/27 221 15.6 244 17.2 261 18.4 90/32 225 15.8 260 18.3 278 19.6

70/21 48 3.4 49 3.4 51 3.6 80/27 49 3.4 50 3.5 52 3.7 90/32 49 3.4 51 3.6 53 3.7

50/10 70/21 90/32

2570 2602 2652 2595 2645 2697 2602 2680 2732 2614 2692 2780

32 33 37 33 36 33 38 41 34 39 45

4.5 4.0 3.8

4.1 3.3 3.4

4.0 2.7 2.7

3.4 2.7 2.7

WATER TEMP. (ºF/ºC)

1871 849 1740 789

493 1.86 447 1.69

225 15.8 243 17.1

TOTAL HEAT OF REJECTION FROM CONDENSER TOTAL HEAT OF REJECTION FROM COMPRESSOR CONDENSER VOLUME 214 CU. IN (URC-22F)

27,600 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

3,300 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 99

34. KMH-2000SRH3 with URC-22F

SPECIFICATION SHEET

AC SUPPLY VOLTAGE 208-230/60/3 AMPERAGE 9.9 A (5 Min. Freeze AT 104°F/WT 80°F) MINIMUM CIRCUIT AMPACITY 20 A MAXIMUM FUSE SIZE 20 A ELECTRIC & WATER CONSUMPTION 90/70°F 70/50°F ELECTRIC W (kWH/100 lbs.) 2600(3.7) 2430(3.0) WATER gal./24HR (gal./100 lbs.) 281(16.8) 507(26.3) ICE PRODUCTION PER CYCLE 46.9 lbs. (21.3 kg) 2160pcs. TOTAL REFRIGERANT CHARGE R404A, 16 lb. 1.5 oz. (7300g) REFRIGERANT CHARGE BY UNIT (Icemaker 8 lbs. 6 oz. Cond. Unit 7 lbs. 11.5 oz.)

PERFORMANCE DATA SHEET

APPROXIMATE ICE PRODUCTION PER 24 HR.

lbs./day kg./day 100/38 1816 824 1640 744 1388 630 APPROXIMATE ELECTRIC CONSUMPTION

watts 100/38 APPROXIMATE WATER CONSUMPTION PER 24 HR.

gal./day m3/day 100/38 364 1.38 277 1.05 242 0.91 FREEZING CYCLE TIME

min. 100/38 HARVEST CYCLE TIME

min. 100/38 HEAD PRESSURE

PSIG kg/cm2G 100/38 225 15.8 258 18.2 282 19.8 SUCTION PRESSURE

PSIG kg/cm2G 100/38 48 3.4 49 3.5 52 3.7

AMBIENT TEMP.

(ºF/ºC)

70/21 1929 875 80/27 1872 849 1757 797 1602 727 90/32 1855 841 1675 760 1525 692

70/21 80/27 90/32

70/21 507 1.92 80/27 457 1.73 354 1.34 347 1.31 90/32 441 1.67 281 1.07 261 0.99

70/21 80/27 90/32

70/21 210 14.8 80/27 220 15.5 241 16.9 254 17.8 90/32 223 15.7 255 17.9 269 18.9

70/21 47 3.3 48 3.3 49 3.4 80/27 47 3.3 48 3.4 50 3.5 90/32 48 3.3 49 3.4 51 3.6

50/10 70/21 90/32

2430 2480 2535 2468 2545 2593 2480 2600 2652 2486 2612 2700

32 34 37 34 36 34 37 41 35 38 45

4.7 4.6 4.5

4.6 4.4 4.4

4.6 4.3 4.3

4.4 4.3 4.3

WATER TEMP. (ºF/ºC)

1855 841 1719 780

441 1.67 404 1.53

223 15.7 238 16.7

TOTAL HEAT OF REJECTION FROM CONDENSER TOTAL HEAT OF REJECTION FROM COMPRESSOR CONDENSER VOLUME 214 CU. IN (URC-22F)

26,500 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

3,200 BTU/h [AT 90ºF (32ºC) / WT 70ºF (21ºC)]

Page 100

B. Wiring Diagrams

1. "E" and "G" Control Board Schematics without Harvest Pump Timer Relays

a) KM-1601SWH, KM-1601SRH, KM-1900S_H, KMH-2000S_H

Control Transformer

Output 10.5V at 115V

* High-Pressure Switch

PSIG

PSIG 412±

0 0

Water-Cooled Model Air and Remote Model

Cut-out 384±

Cut-in 284±22 PSIG 327±22 PSIG

100

Hoshizaki KM1900SAH, KM1601SAH3, KM1601SWH3, KM1601SRH3, KM1601SRH Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Important Safety Information

I. Construction and Water/Refrigeration Circuit Diagram

A. KM Construction

1. Air-Cooled Models (SAH/3)

2. Water-Cooled Models (SWH/3/-M)

3. Remote Models (SRH/3)

B. KMH Construction

1. Water-Cooled Models (SWH/3)

2. Remote Models (SRH/3)

C. Bin Control

1a. Single Thermostatic Bin Control

1b. Stacked Thermostatic Bin Control

2a. Single Mechanical Bin Control

2b. Stacked Mechanical Bin Control

D. Water/Refrigeration Circuit Diagram

1. Air-Cooled Models (SAH/3)

2. Water-Cooled Models (SWH/3/-M)

3a. Remote Models (SRH/3) Except KM-2500SRH3

3b. Remote Models (SRH3) KM-2500SRH3

II. Sequence of Operation and Service Diagnosis

A. Sequence of Operation Flow Chart

1. "E" and "G" Control Board without Harvest Pump Timer Operation

2. "G" Control Board with Harvest Pump Timer Operation

3a. Thermostatic Bin Control Shutdown

3b. Mechanical Bin Control Shutdown

B. Service Diagnosis

1. "E" and "G" Control Board without Harvest Pump Timer Diagnosis

2. "G" Control Board with Harvest Pump Timer Diagnosis

C. Control Board Check

D. Bin Control Check

1. Thermostatic Bin Control Check

2. Mechanical Bin Control Check

E. Float Switch Check and Cleaning

1. Float Switch Check

2. Float Switch Cleaning

F. Thermistor Check

G. Diagnostic Tables

III. Controls and Adjustments

A. Control Board Layout

1. "E" Control Board

2. "G" Control Board

B. LED Lights and Audible Alarm Safeties

1. "E" Control Board

2. "G" Control Board

C. Settings and Adjustments

1. Default Dip Switch Settings

a) "E" and "G" Control Board without Harvest Pump Timer Operation

b) "G" Control Board with Harvest Pump Timer Operation

c) "G" Control Board S5 Dip Switch

2. Harvest Timer (S4 dip switch 1 & 2)

3. Pump-Out Timer (S4 dip switch 3 & 4)

4. Pump-Out Frequency Control (S4 dip switch 5 & 6)

5. Bin Control Selector or Harvest Pump Timer Operation (S4 dip switch 7)

a) Bin Control Selector: "E" Control Board

b) Harvest Pump Timer: "G" Control Board

6. Factory Use (S4 dip switch 8)

7. Freeze Timer (S4 dip switch 9 & 10)

8. Float Switch Selector (S5 dip switch 1): "G" Control Board

D. Control Switch

IV. Refrigeration Circuit and Component Service Information

A. Refrigeration Circuit Service Information

B. Component Service Information

C. Water Regulating Valve Adjustment (water-cooled models)

V. Maintenance

VI. Preparing the Icemaker for Periods of Non-Use

VII. Disposal

VIII. Technical Information

1. KM-1301SAH

2. KM-1301SAH3

3. KM-1301SWH

4. KM-1301SWH3

5. KM-1301SRH with URC-14F

6. KM-1301SRH3 with URC-14F

7. KM-1400SWH-M

8. KM-1400SWH3-M

9. KM-1601SAH