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26

2. Water-Cooled Condenser

a) Connection to an Open Drain System

Condenser Water 
Supply Inlet 

Minimum Condenser 
Water Supply Line Size 

Condenser Drain 
Outlet

Minimum Condenser 
Drain Line Size

1/2" Female Pipe 
Thread (FPT)

3/8" Nominal ID Copper 
Water Tubing or Equivalent

3/8" Female Pipe 
Thread (FPT)

3/8" Nominal ID Hard Pipe 
or Equivalent

• A condenser water supply line shut-off valve and drain valve must be installed.
• In some areas, a back flow preventer may be required in the cooling water circuit.
• In order to maintain the proper high side pressure, the condenser water supply inlet 

temperature should not drop below 45°F (7°C) and the condenser drain outlet temperature 
must be in the 104°F to 115°F (40°C to 46°C) range. Once the icemaker installation 
is complete, confirm the condenser drain outlet temperature 5 minutes after a freeze 
cycle starts. If the condenser drain outlet temperature is not in the proper range, use a 
flat blade screwdriver to rotate the adjustment screw on the water-regulating valve until 
the temperature is in the proper range (rotate counterclockwise to raise temperature or 
clockwise to lower temperature).

Fig. 9

Water-Cooled Models

Connection to an Open Drain System

Model Shown: 
KM-1601SWJ

Icemaker

Icemaker Water 

Supply Inlet

1/2" FPT

Bin Drain Outlet

3/4" FPT

2-inch (5-cm) air gap

Floor Drain

Icemaker

Drain Outlet 

3/4" FPT

Condenser Water 

Supply Inlet

1/2" FPT

Condenser 

Drain Outlet 

3/8" FPT

Vent Tube

Icemaker 

Condensation 

Drain Outlet

3/8" OD Hard Tube

Vent Tube

Minimum 3/8" 

Nominal ID 

Hard Pipe or 

Equivalent

Shut-Off Valve

Minimum 3/8" Nominal ID Copper 

Water Tubing or Equivalent

Minimum 3/8" Nominal ID Copper 

Water Tubing or Equivalent

Drain Valve

Ice 

Storage 

Bin

Minimum 3/4" Nominal ID 

Hard Pipe or Equivalent

Separate piping to approved 

drain. Leave a 2-inch (5-cm) 

vertical air gap between the 

end of each pipe and the 

drain.

Be sure there is sufficient 

extra water supply line and 

drain line for the appliance 

to be pulled out for service.

Summary of Contents for KM-1301SAJ

Page 1: ...KM 1301SAJ 3 SWJ 3 SRJ 3 KM 1601SAJ 3 SWJ 3 SRJ 3 KM 1900SAJ 3 SWJ 3 SRJ 3 KM 2200SWJ3 SRJ3 KM 2600SWJ3 SRJ3 Stackable Crescent Cuber Instruction Manual Issued 5 8 2017 Revised 10 14 2021 hoshizakiamerica com ...

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

Page 3: ... to Remove Panels 17 D Setup 18 1 Dispenser Unit Ice Storage Bin and Icemaker Setup 18 2 Bin Control Installation 19 3 Installation of Upper Unit 20 E Electrical Connection 22 F Water Supply and Drain Connections 24 1 Icemaker 25 2 Water Cooled Condenser 26 G Installation of Remote Condenser Unit 28 1 Location 28 2 Checks Before Installation 29 3 Setup 29 4 Line Set Size and Refrigerant Charge 29 ...

Page 4: ...4 III Maintenance 37 A Maintenance Schedule 37 B Cleaning and Sanitizing Instructions 38 IV Preparing the Icemaker for Periods of Non Use 42 V Disposal 44 ...

Page 5: ...in accordance with applicable national state and local codes and regulations 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 fire or damage The icemaker requires an independent power supply of proper capacity See the nameplate for electrical speci...

Page 6: ...it 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 fire or damage NOTICE Follow the water supply drain connection and maintenance instructions carefully to reduce the risk of costly water damage In areas where water damage is a concern install in a contained area w...

Page 7: ...nly 20 AMPS 20 AMPS 20 AMPS Minimum Circuit Ampacity 20 AMPS 20 AMPS 20 AMPS Design Pressure HI 467PSI LO 230PSI HI 427PSI LO 230PSI HI 467PSI LO 230PSI Refrigerant 404A 4 LB 3 OZ 404A 2 LB 2 4 OZ 404A Total Refrigerant Charge with Hoshizaki Remote Condenser Unit URC 14F 10 LB 5 8 OZ Three Phase Model Number KM 1301SAJ3 KM 1301SWJ3 KM 1301SRJ3 AC Supply Voltage 208 230 60 3 208 230 60 3 208 230 60...

Page 8: ...PSI Refrigerant 404A 5 LB 1 1 OZ 404A 2 LB 10 3 OZ 404A Total Refrigerant Charge with Hoshizaki Remote Condenser Unit URC 22F 22 LB 15 OZ Three Phase Model Number KM 1601SAJ3 KM 1601SWJ3 KM 1601SRJ3 AC Supply Voltage 208 230 60 3 208 230 60 3 208 230 60 3 Compressor 230V 9 3RLA 55LRA 230V 7 3RLA 65 5LRA 230V 7 9RLA 65 5LRA Pump 120V 1 2FLA 60W 120V 1 2FLA 60W 120V 1 2FLA 60W Fan 115V 1 0FLA 1 15HP...

Page 9: ...0PSI Refrigerant 404A 4 LB 10 1 OZ 404A 3 LB 1 4 OZ 404A Total Refrigerant Charge with Hoshizaki Remote Condenser Unit URC 22F 21 LB 7 9 OZ Three Phase Model Number KM 1900SAJ3 KM 1900SWJ3 KM 1900SRJ3 AC Supply Voltage 208 230 60 3 208 230 60 3 208 230 60 3 Compressor 230V 8 4RLA 66LRA 230V 7 8RLA 66LRA 230V 8 0RLA 66LRA Pump 120V 1 2FLA 60W 120V 1 2FLA 60W 120V 1 2FLA 60W Fan 115V 1 0FLA 1 15HP E...

Page 10: ...404A 3 LB 404A Total Refrigerant Charge with Hoshizaki Remote Condenser Unit URC 22F 16 LB 1 5 OZ 5 KM 2600S_J3 Three Phase Model Number KM 2600SWJ3 KM 2600SRJ3 AC Supply Voltage 208 230 60 3 208 230 60 3 Compressor 230V 11 3RLA 105LRA 230V 16 1RLA 114LRA Pump 120V 1 2FLA 60W 120V 1 2FLA 60W Fan 120V 3A MAX Fans in URC Other 115V 0 8A 115V 0 8A Maximum Fuse Size 30 AMPS 30 AMPS Max HACR Breaker US...

Page 11: ...ce and or service should they be required For KM 1601SAJ 3 allow 9 23 cm clearance at rear sides and top The ice storage bin opening must match the bottom opening as in the illustration Units mm in Rear Side Bottom Model Shown KM 1301SAJ KM 1301SAJ 3 KM 1601SAJ 3 KM 1900SAJ 3 A 695 27 3 8 925 36 3 8 B 643 25 3 8 873 34 3 8 C 115 4 1 2 130 5 1 8 Model Shown KM 1301SAJ Model Shown KM 1301SAJ ...

Page 12: ... the illustration KM 1301SWJ 3 KM 1601SWJ 3 KM 1900SWJ 3 KM 2200SWJ3 KM 2600SWJ3 A 695 27 3 8 695 27 3 8 925 36 3 8 925 36 3 8 B 643 25 3 8 643 25 3 8 873 34 3 8 873 34 3 8 C 115 4 1 2 115 4 1 2 130 5 1 8 130 5 1 8 D 164 6 1 2 199 7 7 8 298 11 3 4 162 6 3 8 E 74 2 7 8 85 3 3 8 85 3 3 8 110 4 3 8 Rear KM 1301 1601 1900 2200SWJ 3 Side Bottom Model Shown KM 1301SWJ Model Shown KM 1301SWJ Model Shown ...

Page 13: ...ice should they be required The ice storage bin opening must match the bottom opening as in the illustration Rear Side Bottom Model Shown KM 1301SRJ Model Shown KM 1301SRJ Model Shown KM 1301SRJ Units mm in KM 1301SRJ 3 KM 1601SRJ 3 A 695 27 3 8 695 27 3 8 B 643 25 3 8 643 25 3 8 C 115 4 1 2 115 4 1 2 D 442 17 3 8 442 17 3 8 E 115 4 1 2 115 4 1 2 F 76 3 100 3 7 8 ...

Page 14: ...SRJ3 NOTICE Allow 6 15 cm clearance at rear sides and top for proper air circulation and ease of maintenance and or service should they be required The ice storage bin opening must match the bottom opening as in the illustration Rear Side Bottom Units mm in ...

Page 15: ...emote Condenser Unit URC 22F use with KM 1601SRJ 3 KM 1900SRJ 3 KM 2200SRJ3 and URC 26J use with KM 2600SRJ3 Icemaker Model URC Model Heat of Rejection AT 90 F 32 C WT 70 F 21 C KM 1601SRJ URC 22F 21 000 BTU hr KM 1601SRJ3 URC 22F 26 400 BTU hr KM 1900SRJ URC 22F 26 500 BTU hr KM 1900SRJ3 URC 22F 25 700 BTU hr KM 2200SRJ3 URC 22F 30 800 BTU hr KM 2600SRJ3 URC 26J 40 600 BTU hr NOTICE Allow 24 61 c...

Page 16: ...water supply line drain the icemaker if the air temperature is going to go below 32 F 0 C See IV Preparing the Icemaker for Periods of Non Use The icemaker should not be located next to ovens grills or other high heat producing equipment For all models except KM 1601SAJ 3 allow 6 15 cm clearance at rear sides and top for proper air circulation and ease of maintenance and or service should they be ...

Page 17: ...st be connected to an appropriate remote condenser unit The remote condenser units listed below are recommended Connection to a different remote condenser unit will void the warranty unless Hoshizaki approves a different remote condenser unit for your specific application For further details contact your local Hoshizaki distributor Model Number Recommended Hoshizaki Remote Condenser Unit KM 1301SR...

Page 18: ...the icemaker on top of the dispenser unit ice storage bin 6a Dispenser Unit Follow the dispenser unit adapter kit or top kit instructions for securing the icemaker If no instructions are available secure the icemaker using the mounting brackets provided Rotate the mounting brackets so that they fit flush to the dispenser unit See Fig 2a Secure the mounting brackets to the icemaker with the bolts p...

Page 19: ...nside the icemaker then route the bin control cable through the hole in the bottom of the icemaker and the bushing in the bin control cable bracket Secure the bin control cable bracket Leave as little slack as possible inside the storage bin Route the cable through the wire saddles Fig 4 Fig 3 Bin Control Assembly Thumbscrew Wire Harness Connector A Bin Control Cable Connector Connection Detail Co...

Page 20: ...the top insulation of the lower unit The top panel and the top insulation of the lower unit are not required when installing an upper unit 3 Unpack the upper unit and remove the shipping carton tape and packing material 4 Remove the panels of the upper unit 5 Stack the upper unit on top of the lower unit 6 Secure the upper unit to the lower unit using the 2 mounting brackets and the bolts provided...

Page 21: ... any components 11 Secure the bin control cable bracket 12 Replace the panels and storage bin baffle in their correct positions Fig 6 Upper Unit Wire Harness Connector B not used Bin Control Cable Bracket Control Board Red K4 Connector Upper Unit Wire Harness Wire Saddle Lower Unit Wire Harness Connector B to Upper Unit Wire Harness Connector A Lower Unit Wire Harness Control Board Red K4 Connecto...

Page 22: ...lectrical Connection Failure to properly ground the remote condenser unit could result in death or serious injury To reduce the risk of electric shock make all remote condenser unit connections before connecting the icemaker power supply NOTICE On remote models the appliance must have power for a minimum of 4 hours prior to startup to prevent compressor damage Usually an electrical permit and serv...

Page 23: ...or wire this unit could result in death serious injury or severe damage to the icemaker The white lead must be connected to the neutral conductor of the power source See diagram below 4A5700 010 208 230 60 1 3 wire with neutral for 115V JUNCTION BOX 208 230V BLACK BROWN L1 L2 WHITE N 115 120V Fig 7 BROWN WARNING ELECTRICAL CONNECTION THIS UNIT MUST BE GROUNDED Failure to properly ground or wire th...

Page 24: ...External filters strainers or softeners may be required depending on water quality Contact your local Hoshizaki Certified Service Representative or local Hoshizaki distributor for recommendations A plumbing permit and services of a licensed plumber may be required in some areas The icemaker drain line dispenser unit ice storage bin drain line and water cooled condenser drain line if applicable mus...

Page 25: ...be pulled out for service Fig 8 Model Shown KM 1601SRJ Air Cooled and Remote Models Remote Condenser Line Set Connections Shut Off Valve Drain Valve Icemaker Icemaker Water Supply Inlet 1 2 FPT Bin Drain Outlet 3 4 FPT 2 inch 5 cm air gap Floor Drain Icemaker Drain Outlet 3 4 FPT Minimum 3 8 Nominal ID Copper Water Tubing or Equivalent Icemaker Condensation Drain Outlet 3 8 OD Hard Tube Vent Tube ...

Page 26: ...ture is not in the proper range use a flat blade screwdriver to rotate the adjustment screw on the water regulating valve until the temperature is in the proper range rotate counterclockwise to raise temperature or clockwise to lower temperature Fig 9 Water Cooled Models Connection to an Open Drain System Model Shown KM 1601SWJ Icemaker Icemaker Water Supply Inlet 1 2 FPT Bin Drain Outlet 3 4 FPT ...

Page 27: ...irm the condenser return outlet temperature 5 minutes after a freeze cycle starts If the condenser return outlet temperature is not in the proper range use a flat blade screwdriver to rotate the adjustment screw on the water regulating valve until the temperature is in the proper range rotate counterclockwise to raise temperature or clockwise to lower temperature Fig 10 Water Cooled Models Connect...

Page 28: ...ntended for outdoor use Normal operating ambient temperature must be within 20 F to 122 F 29 C to 50 C Operation of the remote condenser unit for extended periods outside of this normal temperature range may affect appliance performance The maximum line length for the standard line sizes and refrigerant charge is 66 20 m With larger line sizes and or additional refrigerant the maximum line length ...

Page 29: ... remote condenser unit must contain the same type of refrigerant Mixing of refrigerants will result in improper operation and possible damage to the refrigeration system Line Set Size and Refrigerant Charge Hoshizaki Icemaker Hoshizaki Remote Condenser Unit Line Set Up to 66 20 m Line Set Greater than 66 20 m Maximum 100 30 5 m Liquid Line Discharge Line Charge Adjustment Liquid Line Discharge Lin...

Page 30: ...the male fitting and female coupling b Apply Polyol Ester POE refrigerant oil or Parker Super O Lube to the entire male fitting including O ring diaphragm and threads before making the connection See Fig 15 NOTICE Do not use thread sealant on the fittings Use POE refrigerant oil or Parker Super O Lube only Couplings are one time use only c Make sure the male fitting and female coupling are properl...

Page 31: ...o the icemaker Leave a service loop behind the icemaker to allow the icemaker to be pulled out for service See Fig 14 NOTICE Ensure that there are no traps and no kinks in the line set The service loop is not considered an oil trap Do not coil extra line set Fabricate the line set to the proper length 2 Insulate the two copper tubes separately 3 Install Parker quick connect couplings on each end O...

Page 32: ... ring diaphragm and threads before making the connection See Fig 15 NOTICE Do not use thread sealant on the fittings Use POE refrigerant oil or Parker Super O Lube only Couplings are one time use only c Make sure the male fitting and female coupling are properly aligned then start the connection by hand to ensure that it is not cross threaded d Place a backup wrench on the back of the female coupl...

Page 33: ...from the fan motor leads in the icemaker fan motor junction box to the leads in the remote condenser unit junction box Use wire of an appropriate gage and outdoor rating Do not connect the fan motor leads in the icemaker to incoming power source Do not connect the fan motor leads in the icemaker together Do not allow the leads to contact the junction box walls Do not connect the remote condenser u...

Page 34: ...er unit junction box Use wire of an appropriate gage and outdoor rating 5 Replace the junction box covers and the louver panel in their correct positions 7 Stacking Remote Condenser Unit 1 Install the lower remote condenser unit as described earlier in this section 2 Place the upper remote condenser unit on top of the lower remote condenser unit See Fig 18 3 Secure the upper remote condenser unit ...

Page 35: ... models and on all three phase models has the main transformer s voltage tap switch been positioned to match incoming voltage 7 Are the water supply and drain lines sized as specified Are the water supply line shut off valve s and drain valve s installed Has the water supply pressure been checked to ensure a minimum of 10 PSIG and a maximum of 113 PSIG 8 Is the compressor snug on all mounting pads...

Page 36: ...sition 5 Turn on the power supply and allow the icemaker to operate for a total of 10 minutes 6 Turn off the power supply then remove the front panel 7 Remove the insulation panel Remove the drain plug located on the lower front part of the ice chute See Fig 19 Allow the water tank to drain 8 Replace the drain plug insulation panel and front panel in their correct positions Be careful not to cross...

Page 37: ...n regulations 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 Check for proper pressure and change if necessary Icemaker Exterior Wipe down with a clean soft cloth Use a damp cloth containing a neutral cleane...

Page 38: ...T The cleaning valve is opened during cleaning and sanitizing to allow solution flow to the inside of the evaporator It should be closed for all icemaking operation The compressor will not operate unless this valve is completely closed To close the cleaning valve the valve handle should be at a right angle to the valve body To open the cleaning valve the valve handle should be parallel to the valv...

Page 39: ...ve the front insulation panel then remove the drain plug After the water tank has drained replace the drain plug and front insulation panel 10 In bad or severe water conditions turn off the power supply then remove clean cleaning solution 5 oz Hoshizaki Scale Away per gallon of warm water rinse and replace the cube guide float switch water supply tubes spray tubes and spray guides turn on the powe...

Page 40: ...ter tank has drained replace the drain plug and front insulation panel Sanitizing Rinse 1 19 Turn the cleaning valve to the right until completely horizontal closed Move the control switch to the ICE position then replace the front panel After 3 min remove the front panel then move the control switch to the OFF position 20 Turn the cleaning valve to the left until completely vertical open Move the...

Page 41: ...ront panel After 5 min remove the front panel then move the control switch to the OFF position 27 Remove the front insulation panel then remove the drain plug After the water tank has drained replace the drain plug and front insulation panel 28 Clean the dispenser unit ice storage bin liner using a neutral cleaner Rinse thoroughly after cleaning 29 Turn the cleaning valve to the right until comple...

Page 42: ...t 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 low...

Page 43: ...ng 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 panel top panel and front panel in their correct positions ...

Page 44: ...osal The appliance contains refrigerant and must be disposed of in accordance with applicable national state and local codes and regulations Refrigerant must be recovered by properly certified service personnel ...

Page 45: ...45 618 Hwy 74 South Peachtree City GA 30269 USA P 770 487 2331 F 770 487 3360 hoshizakiamerica com 1A4726 011 ...

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