Howe Rapid Freeze 4000-RL Installation & Service Manual Download Page 1

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Howe Corporation

Phone: 1-773-235-0200

Fax: 1-773-235-0269

1650 North Elston Avenue

Website: www.howecorp.com

Chicago, IL 60642-1585

Email: [email protected]

Rapid Freeze

Ice Flaker

Installation & Service Manual

For Use with Remote Single Condensing Unit

4000-RL

6000-RL

Summary of Contents for Rapid Freeze 4000-RL

Page 1: ...200 Fax 1 773 235 0269 1650 North Elston Avenue Website www howecorp com Chicago IL 60642 1585 Email howeinfo howecorp com Rapid Freeze Ice Flaker Installation Service Manual For Use with Remote Singl...

Page 2: ......

Page 3: ...and Guidelines 9 Inspection 9 Condensing Unit Rigging and Mounting 9 Piping 10 Leak Testing 10 Field Wiring 11 Evacuation 12 Refrigerant Charging Instructions 12 Installation Checklist 13 START UP AND...

Page 4: ...Water Pressure Maximum Water Pressure 20 PSIG 60 PSIG Straight Reverse Osmosis RO treated water should never be supplied to the Ice Flaker RO system treated water is aggressive toward metals and plat...

Page 5: ...vertical pipe drops should drain water through an indirect water connection with an Air Gap Code authorities having jurisdiction may dictate other indirect water connection requirements The figure dep...

Page 6: ...Engineering Guidelines 5...

Page 7: ...essories Liquid Line Filter Drier and Sight Glass Suction Filter Suction Accumulator Oil Separator Refrigerant Pump Down switch Heated and Insulated Receiver except for high ambient applications Copel...

Page 8: ...Engineering Guidelines 7 Figure 1...

Page 9: ...d with a suitable silver brazing alloy while purging nitrogen through the piping to prevent copper oxidation scale from forming inside the tubing For close coupling Ice Flaker to Condensing Unit use a...

Page 10: ...d when moving these units To prevent damage to the unit housing during rigging cables or chains used must be held apart by spacer bars The mounting platform or base should be level and located so as t...

Page 11: ...iping open to the atmosphere any longer than is absolutely necessary 2 Use only refrigeration grade copper tubing properly sealed against contamination 3 Suction lines should slope 1 4 per 10 feet tow...

Page 12: ...between the Control Panel and the Junction Box at the Ice Flaker Component Control Panel Junction Box Drive Motor T1 Driv 1 T2 Driv 2 Water Pump T1 Pump 3 T2 Pump 4 Solenoid Valve Sol A1 5 Sol A2 6 R...

Page 13: ...n a second time Open the compressor service valves and evacuate the entire system to 500 microns absolute pressure Raise the pressure to 2 psig with the refrigerant and remove the vacuum pump Refriger...

Page 14: ...near a floor sanitary sewer drain see Drain Water Piping Requirements p 4 6 Have the EPR and Suction Line Heat Exchanger been installed correctly see Suggested Refrigerant Piping Diagram p 7 7 Have a...

Page 15: ...stallation Start Up and Operation Water Operation 1 Water Inlet Connection 2 Float Valve 3 Water Pump 4 Water Regulating Valve 5 Water Distribution Pan Side Spouts 6 Sump Connections 7 Stop Valve 8 Dr...

Page 16: ...he Float Valve Rotate clockwise to raise the water level and counterclockwise to lower the water level Water Pump The Water Pump drives the water in a continuous flow through the system The Water Pump...

Page 17: ...r surface Do not plug or cap the bottom Lead Spout Section View of Water Distribution Pan Water level in the Water Distribution Pan should be about halfway full The Side Spouts should never be starved...

Page 18: ...eration 17 Refrigeration Operation Piping insulation not shown 1 Evaporator Pressure Regulator EPR 2 Solenoid Valve 3 Sight Glass 4 Thermostatic Expansion Valve TXV 5 TXV Sensing Bulb 6 Evaporator 7 P...

Page 19: ...eeding All EPRs are shipped loose and must be field installed The EPR should ideally be located within 2 feet of the Ice Flaker To read EPR setting install service manifold at the Pressure Tap of the...

Page 20: ...igeration to the Ice Flaker 1 Visually inspect the frost pattern on the freezing surface of the Evaporator If the TXV is underfeeding the top of the frost pattern will be a milky white color and the b...

Page 21: ...d feed The moisture indicator in the middle of the Sight Glass should always be green Green Dry Yellow Wet Fan Cycling Control On Dual Fan Condensing Units 6000 RL the lead fan is always on when the C...

Page 22: ...falling ice in the container for exactly 15 minutes Be sure that the container catches all of the ice 5 Weigh the ice and the container together in pounds using an accurate scale Do not drain before w...

Page 23: ...lay LC1 1 Term 1 24V Input Power 2 Term 2 24V Input Power 3 Term 3 Control Signal 4 Term 4 Motor Overload Reset 5 Term 5 Motor Overload Switch Leg 6 Term 6 Ice Flaker Run Switch Leg 7 Term 7 Solenoid...

Page 24: ...mal Operation Motor Overload Indicator Light This is lit amber when Ice Flaker is in Overload Condition The Reset Button is a normally open switch which resets the circuit after an Overload Condition...

Page 25: ...lenoid Valve Contacts Term 7 8 are open and the Overcurrent Condition Indicator Light is lit red The Motor Overload setting should be adjusted on start up and anytime changes are made to the Drive Mot...

Page 26: ...Start Up Operation 25 Photo Eyes Level Control Photo Eye Wiring...

Page 27: ...a voltmeter to verify 24 volts across Blue and Brown terminals Alternatively you can check terminals 1 and 10 on the Level Control Relay If 24 volts is not present the Level Control Relay has likely...

Page 28: ...Start Up Operation 27 Mechanical Operation 1 Ice Deflector 2 Ice Blade 3 Squeegee 4 Speed Reducer 5 Drive Motor...

Page 29: ...never touch the Ice Deflector Scraper or the Bottom Casting Newer model ice flakers do not require the ice deflector scraper so it may not be present Ice Blade The Ice Blade shatters the ice formed on...

Page 30: ...can wear over time Worn Squeegees need to be trimmed or replaced Drive Motor and Speed Reducer The Drive Motor is attached to the Speed Reducer by 4 mounting screws There are no other screws or pins h...

Page 31: ...can result in ice harvesting problems and even damage to the Evaporator Improper refrigeration setting and lack of maintenance can cause the Sleeve Bearings to wear faster than normal Please contact H...

Page 32: ...ve you set the Fan Cycling Control 6000 RL only see Fan Cycling Control p 20 7 Have you set the Low Pressure Control on the Condensing Unit see Low Pressure Control p 20 8 Have you run a Field Capacit...

Page 33: ...35 Ensure Float Valve is unclogged and flowing freely 15 Verify correct Sequence of Operation of Photo Eye sensors 26 Clean and Sanitize Ice Flaker 33 Replace Water Filter Cartridge 37 Run a Field Ca...

Page 34: ...Turn the Power Switch Off at the Ice Flaker Control Panel 2 Open Ice Flaker Control Panel and turn Off Delay timer knob fully clockwise to 30 minutes run time 3 Remove all ice from Ice Bin 4 Close wat...

Page 35: ...h water until all cleaning solution is flushed out Sanitizing Procedure 1 Mix 16 oz of household bleach with 2 gallons of warm water 90 F 115 F 2 Pour solution into the Water Sump to the normal operat...

Page 36: ...d oil through top Allen head screw opening until oil seeps out of centered screw opening Do not overfill Sleeve Bearing Lubrication The bearings should be greased annually using USDA approved food gra...

Page 37: ...down time Scale forms on wetted surfaces accumulates in tubing and fittings and interferes with operation Sediment The formation of scale from dissolved minerals is made worse by sediment Sediment is...

Page 38: ...ball valve 2 Press the red button to release pressure 3 Remove housing s use filter wrench if necessary Clean housings with warm water If desired disinfect housings using 1 2 teaspoon of household bl...

Page 39: ...Photo Eye and wait longer than Off Delay setting If Ice Flaker stops Emitter Photo Eye may be defective and need to be replaced 2 Defective Receiver Photo Eye 2 Unplug Receiver Photo Eye and wait lon...

Page 40: ...rm 1 and Term 6 blue If no voltage present Control Module CM may be defective and need to be replaced 2 Blown Fuses 2 Check for control voltage across FU1 fuses Replace as needed 3 Defective Water Pum...

Page 41: ...is ramping off rings of ice formed on Evaporator 3 Adjust refrigeration to the Ice Flaker 4 Ice Bin is not draining properly 4 Check that all drains are flowing freely and pitched away from Ice Bin 5...

Page 42: ...Appendix 41 Appendix Cut View...

Page 43: ...230 1 60 Power Ice Flaker with Howe Supplied Condensing Unit For other voltages or flakers not supplied with condensing units from Howe Corporation please have a serial number and contact factory for...

Page 44: ...sing Unit supplied by Howe For other voltages please have a serial number and contact Howe Corporation for the correct wiring diagram If condensing unit was not supplied by Howe Corporation contact co...

Page 45: ...densing Unit supplied by Howe For other voltages please have a serial number and contact Howe Corporation for the correct wiring diagram If condensing unit was not supplied by Howe Corporation contact...

Page 46: ...Installation Service Manual For Use with Remote Single Condensing Unit 4000 RL 6000 RL Rev Date Feb 16...

Page 47: ...Flake Ice Machine Cross Section...

Page 48: ...with backing plate Nuts bolts washers ice deflector scraper 17 Squeegee 8 L 12 L 20 L E30F3 17a Ozone protected Squeegee 8 L 12 L 20 L E30F3 OZ 18 Squeegee wrapper E30F8 18a Nuts bolts washers squeege...

Page 49: ...Assembly Shipboard freshwater or seawater land based seawater Water float Valve Circular 5 arm old style OBSOLETE 44 Water float valve bulkhead fitting CNBHF SG BR08 53 Water tube kit with regulating...

Page 50: ...e motor 380 3 50 TEFC 1 3 HP for seawater Flexible coupling complete for use with gearmotor Flexible coupling complete for use with gearbox Speed reducer for 60cy 920 MDVD 750 1 Speed reducer for 50cy...

Page 51: ...d Date 4000 lbs 6000 lbs Jan 62 Jul 86 E20P1 E20P1 Jul 86 Jan 91 E50H18 E50H18 Jan 91 Present E10H79 E50H18 Flaker Manufacture Date Replacement Float Valves for Freshwater Flake Ice Machines Flaker Ma...

Page 52: ...ket single 2 required Receiver Black cable PT400 Control board 1 15 amp range Overload reset button N O Snap in On off rocker switch 4 Pole contactor 24 volt coil for flaker drive motor 230 VAC single...

Page 53: ...ge for old style E10H47 Replacement pre filter core for old style E10H47 Filter cartridge for E10H53 for 1000 2000 2 5 Inch Diamter Neon Indicating Lights Green 230VAC compressor run light SCA control...

Page 54: ...RLE flakers Knob for clock timer Low water pressure switch for 1000 RLE flaker Clock timer Wind up timer Low water float switch for 4000 RL flakers Replacement float switch Miscellaneous USDA bearing...

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