Hoshizaki KM-2000SRF3 Manuel d'utilisateur

ISSUED:OCT. 9, 1998KM-2000SWF3KM-2000SRF3KM-2000SWH3KM-2000SRH3MODELSERVICE MANUALHOSHIZAKISTACKABLE CRESCENT CUBERNO:73081DEC. 16, 2003REVISED:

10[b] KM-2000SRF3, KM-2000SRH3 Evaporator Spray Tube Water Valve Expansion Valve Water Supply InletCheck ValveHot Gas ValveJunction BoxCon

112. CONTROLLER BOARD[a] SOLID-STATE CONTROL1) A HOSHIZAKI exclusive solid-state control is employed in KM-2000SWF3, KM-2000SRF3, KM-2000SWH3, and

122) Defrost TimerThe defrost cycle starts when the Float Switch opens and completes the freeze cycle. Butthe Defrost Timer does not start counting u

13problem occurs. At startup a 5 second delay occurs while the board conducts an internaltimer check. A short beep occurs when the power switch is

14(Control Products HOSHIZAKI001 Board)to the K1 connector. If there is a white wire, place the switch in the C position. If thisswitch is placed in

15(Control Products HOS-001A Board)

16 4. Defrost Timer stops counting. Defrost cycle is completed and freeze cycle starts.[c] SEQUENCE1st Cycle [KM-2000SWF3, KM-2000SRF3, KM-

172nd Cycle and after with pump drain[KM-2000SWF3, KM-2000SRF3, KM-2000SWH3 and KM-2000SRH3]IMPORTANTFreeze cycle time is limited to 60 minutes evenif

182nd Cycle and after with no pump drain[KM-2000SWF3, KM-2000SRF3, KM-2000SWH3 and KM-2000SRH3]IMPORTANTFreeze cycle time is limited to 60 minutes eve

19DIP SWITCH NO. 1 2 3 4 5 6 7 8 9 10 OFF OFF ON ON ON ON OFF OFF OFF OFF[d] CONT

2HOSHIZAKI AMERICA, INC.618 Highway 74 SouthPeachtree City, GA 30269Attn: HOSHIZAKI Technical Support DepartmentPhone: 1-800-233-1940 Technical Ser

201) Defrost ControlA thermistor (Semiconductor) is used for a defrost control sensor. The resistance variesdepending on the Suction Line temperature

213) Drain TimerThe Drain Timer is factory-adjusted, and no adjustment is required.SETTING TIMEDip Switch Dip SwitchNo. 3 No. 4 T1 T2OFF OFF 10 second

226) Bin ControlCAUTIONWhen the ambient temperature is below 45°F, the Bin Control Thermostatoperates to stop the icemaker even if the Ice Storage Bin

23(iv) After Step (iii), de-energize the unit and confirm that the Defrost Timer is in theminimum position. Disconnect the resistor from the Controll

24III. TECHNICAL INFORMATION1. WATER CIRCUIT AND REFRIGERANT CIRCUIT[a] KM-2000SWF3, KM-2000SWH3

25[b] KM-2000SRF3, KM-2000SRH3

262. WIRING DIAGRAMS[a] KM-2000SWF3 KM-2000SWH3[b] KM-2000SRF3 KM-2000SRH3Pressure SwitchCut-out 384 PSIGCut-in 284 ± 21.3 PSIG+21.30Pre

273. TIMING CHART*1 The icemaker does not complete a defrost cycle in the first 2 or 3 minutes. See “II. 2. [d] CONTROLS ANDADJUSTMENTS.”

28*1 The Pump Motor waits for 2 seconds before starting a drain cycle. See “II. 2. [d] CONTROLS ANDADJUSTMENTS.”*2 The icemaker does not complete a d

294. PERFORMANCE DATA[a] KM-2000SWF3, KM-2000SWH3Note: Pressure data is recorded first 5 minutes in freezing cycle. The data not in bold should be u

3Please review this manual. It should be read carefully before the icemaker is serviced ormaintenance operations are performed. Only qualified servic

30[b] KM-2000SRF3, KM-2000SRH3Note: Pressure data is recorded first 5 minutes in freezing cycle. The data not in bold should be used for ref

31 PROBLEM POSSIBLE CAUSE REMEDY[1] The icemaker a) Power Supply 1. “OFF” position. 1. Move to “ON” position. will not start 2. Loose c

32 PROBLEM POSSIBLE CAUSE REMEDYl) Controller Board 1. Defective. 1. See “II.2[e] CHECKING CONTROLLER BOARD.” m) Interlock Switc

33 PROBLEM POSSIBLE CAUSE REMEDY[5] No water a) Water Supply Line 1. Water pressure too low and 1. Check and get comes from water l

342. EVAPORATOR IS FROZEN UP PROBLEM POSSIBLE CAUSE REMEDY[1] Freeze cycle a) Float Switch 1. Leads short-circuit or 1. Check and replace.

35 PROBLEM POSSIBLE CAUSE REMEDY[1] Icemaker will a) Bin Control 1. Set too cold. 1. Adjust warmer. not stop when Thermostat 2. Def

36V. REMOVAL AND REPLACEMENT OF COMPONENTSIMPORTANTEnsure all components, fasteners and thumbscrews are securely in place afterthe equipment is servi

375) Disconnect the Vacuum Pump, and attach a Refrigerant Service Cylinder to the High-side line. Remember to loosen the connection, and purge the ai

383. REMOVAL AND REPLACEMENT OF COMPRESSORIMPORTANTAlways install a new Drier every time the sealed refrigeration system isopened. Do not replace the

3915) Evacuate the system, and charge it with refrigerant. See the Nameplate for the required refrigerant charge.16) Connect the Terminals, and

42. BRAZING ... 373. REMOVAL AND REPLACEME

405. REMOVAL AND REPLACEMENT OF EXPANSION VALVEIMPORTANTSometimes moisture in the refrigerant circuit exceeds the Drier capacity andfreezes up at the

416. REMOVAL AND REPLACEMENT OF HOT GAS VALVE AND LINE VALVECAUTIONAlways use a copper tube of the same diameter and length when replacing the hotgas

4211) Connect the new Solenoid leads.12) Attach the Solenoid to the valve body, and secure it with a screw.13) Replace the panels in their correct pos

438. REMOVAL AND REPLACEMENT OF WATER REGULATING VALVE - WATER-COOLED MODEL ONLYIMPORTANTAlways install a new Drier every time the sealed refrigera

449. ADJUSTMENT OF WATER REGULATING VALVE - WATER-COOLEDMODEL ONLYThe Water Regulating Valve (also called “WATER REGULATOR”) is factory-adjusted. Noa

4510. REMOVAL AND REPLACEMENT OF CONDENSING PRESSURE REGULATOR (C.P.R.) - REMOTE AIR-COOLED MODEL ONLYIMPORTANTAlways install a new Drier every t

46Foam Insulation Thermistor HolderThermistor Lead Cable TieFig. 211. REMOVAL AND REPLACEMENT OF THERMISTORCAUTION1. Fragile, handle very carefully.2.

4712. REMOVAL AND REPLACEMENT OF FAN MOTORNote: When replacing a Fan Motor with defective winding, it is recommended that a new capacitor be

4813. REMOVAL AND REPLACEMENT OF WATER VALVE1) Turn off the power supply.2) Close the Water Supply Line Shut-off Valve.3) Remove the Front Panel.4) Re

497) Remove the closed end connectors from the Pump Motor leads.8) Remove the two screws and the Pump Motor Bracket.9) Remove the Pump Housing, and ch

5I. SPECIFICATIONS1. KM-2000SWF3, KM-2000SWH3 (Water-cooled) We reserve the right to make changes in specifications and design without prior notic

50VI. CLEANING AND MAINTENANCE INSTRUCTIONS1. PREPARING THE ICEMAKER FOR LONG STORAGEIMPORTANTEnsure all components, fasteners and thumbscrews are se

51[2] Remove the water from the potable water supply line:1) Remove the Front Panel. (Except water-cooled model)2) Move the Control Switch, on the Co

522. CLEANING PROCEDUREIMPORTANTEnsure all components, fasteners and thumbscrews are securely in place afterany maintenance or cleaning is done to the

53[a] CLEANING PROCEDURE1) Dilute 38 fl. oz. of the recommended cleaner Hoshizaki “Scale Away” or “LIME-A-WAY” (Economics Laboratory, Inc.) with 7

5419) Turn on the power supply to fill the Water Tank with water.20) Turn off the power supply after 3 minutes.21) Remove the Front Panel, and fully o

55[b] SANITIZING PROCEDURE - Following Cleaning Procedure1) Dilute a 5.25% Sodium Hypochlorite solution (chlorine bleach) with water (Add 3.5 fl.

563. MAINTENANCEIMPORTANT This icemaker must be maintained individually, referring to the instruction manual and labels provided with the icem

62. KM-2000SRF3, KM-2000SRH3 (Remote air-cooled) We reserve the right to make changes in specifications and design without prior notice.

73. CONDENSING UNITURC-20F

8 SPECIFICATIONSMODEL: URC-20FEXTERIORDIMENSIONS (W x D x H)REFRIGERANT CHARGEURC-20FWEIGHTCONNECTIONSREFRIGERANTELECTRICALCONDENSERHEAD PRESSURE CONT

9 Evaporator Spray Tube Water Valve Expansion Valve Water Supply InletCheck ValveHot Gas ValveJunction BoxControl BoxWater-cooledCondenser