Related Manuals for Grant FF Series
Summary of Contents for Grant FF Series
- Page 1 Revised January 2012 FF SERIES OF FLAKE ICE MACHINES COMPLETE UNIT （ ） SERVICE MANUAL FOR FF0.4 AR & FF0.6 AR MODELS 230v 1 Phase 50HZ （ ） Refrigerant: R404A ...
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Page 2: Table Of Contents
Revised January 2012 Table of Contents I. Overview .......................... 4 II. Operation Conditions & Performance Parameters 1. Conditions for Operation of FF Series Scale Ice Machine .............. 4 2. Diagram for Ice Output of Scale Ice Machine ................ 4 3. Parameters of Scale Ice Machine .................... 5 4. Working Pressure (Ambient temperature: 25 )................ 5 5. Refrigerant Charge ........................ 5 III. Packing, Transportation and Installation 6. Dimensions, Drawings, Air flow & Clearances ................ 6 1. Packing, Transporting and Storing .................... 7 2. Installation ........................... 7 3. Installation Procedures ......................... 8 Installation Schematic Diagram for Split Unit ................ 8 5. Operating Instructions ....................... 9 IV. Operating Principles 2. Water Circulation System ...................... 10 3. Ice level Control System ...................... 10 4. The Gearbox .......................... 11 5. P.C. Board Controlling System ..................... 11 Maintenance & Trouble Shooting 1. Equipment Maintenance ...................... 12 2. Cleaning Procedures ........................ 13 3. Trouble Shooting ........................ 14 ... - Page 3 Revised January 2012 2. Fault Indicator ...................... 19 3. Dip Switch ........................ 20 a)8‐bit DIP Switch .................... 20 b) 4‐ bit DIP Switch .................... 21 4. Electrical Wiring Diagram .................. 22 a) Ice machine PC Board wiring diagram ............... 22 b) Ice Machine external indicator (small board) wiring diagram ...... 23 c) Ice Making sensor wiring diagram .............. 23 5.Ice Full Sensor sensitivity and DIP switch settings ............. 24 a)Full sensor sensitivity settings ................ 24 b) Ice Full sensor sensitivity and adjustment method ........... 24 VIII. Grant T imer ...................... 25 a)Parts Indentification .................... 25 b)Operating Instructions .................. 26 c)Specifications ....................... 27 IX. Technical Notes ...................... 28 X. Service Bulletins… ..................... 29 ...
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Page 4: Overview
Revised January 2012 I. Overview Read this service manual carefully before installation, troubleshooting and operation of this sub‐zero ice machine. This Service Manual gives an introduction of operation conditions, performance parameters, installation, troubleshooting and operating procedures of FF series sub‐zero ice machines. The ice making system has a vertical, static evaporator with a rotating auger. The machine is equipped with a solid state PC board, which controls and monitors the functionality of the ice machine, indicating: ... -
Page 5: Working Pressure (Ambient Temperature: 25 )
Revised January 2012 Note: Daily ice output is directly related to the air temperature at the condenser and inlet water temperature. In order to keep optimum operation performance of FF series sub‐zero ice machines maintenance must be performed on a regular basis as per service manual section V. ... - Page 6 Revised January 2012 6. Drawings, Dimensions, Air flow and Clearances Model W(mm) D(mm) H(mm) External dimensions incl stainless steel cover FF0.4AR 1090 ...
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Page 7: Installation
Revised January 2012 Packing / Transportation/ Storing and Installation Packing, Transportation and Storing The ice machine is packed in plywood. Beware of collision, vibration, ti lting , inversion, etc. in transportation and storage. Ice machine should be kept below 40C, dry, and well‐ventilated Before you begin: Check your paperwork to determine the model received matches your order. After uncrating and removing all packing material, inspect equipment for any shipping damage. Check whether all connections (water system, refrigerant system, etc.), electrical connections (wires, ... -
Page 8: Installation Procedures
Revised January 2012 3. Installation Procedures (1) Place the ice machine on appropriate ice storage bin and fix. See figure 2. (2) Ensure machine is level (3) Connect water supply with stop cock. (4) Connect the drains with sufficient fall. (5) Open the water supply stop cock. (6) Connect power to approved outlet. (7) Use a qualified service technician for installation. (8) See figure 3 for installation of split unit.(See figure 3) ... -
Page 9: Operating Instructions
Revised January 2012 Operating Instructions (1) To start up After the machine has been installed as per instructions, plug in and switch on. The indicator light A (the green light) will come on. Turn the Manual “Off/Auto” to “manual on” position (turn the switch ... -
Page 10: Operating Principles
Revised January 2012 IV. Operating Principles 1. Water Circulation System (See figure 6) Water enters the machine through the float valve and into the water reservoir. Water is then pumped to the water distributor by a water pump and then flows on to the inner surface of the evaporator. ... -
Page 11: The Gearbox
Revised January 2012 3. The Gearbox This system includes a gear motor and gear box. The gear motor drives the gearbox. The output shaft of the gearbox drives the auger and water distributor at a speed of 2 rpm. In case of wrong rotation direction or low speed of the gear motor, the sensor will send a signal to the P.C. board, which will stop the machine. Causes of the trouble should be identified and fault should be rectified before the machine is re‐ started. ... -
Page 12: Maintenance & Trouble-Shooting
Warning: No cleaning or maintenance shall be carried out on the machine prior, to carrying out correct isolation procedures to isolate the machine from the pow er and water supply. Coast Distri butors recommends the use of PPE when carrying out a service or maintenance on either the ITS, BIN, or Grant ice machine. A. Dai ly procedures For continued ice quality, check the following. Nothing is allowed to be stored in the ice storage bin. Always keep the bin door closed and the ice paddle clean. Check for ice clumping, if clumping is present clear the ice or melt the ice with warm water. To protect the machine from any damage, please pay attention to the items stated below: Don’t turn off the water supply when machine is operating. Open/close the storage bin door gently and never kick or jerk the door. ... -
Page 13: Cleaning Procedures
Revised January 2012 . 2. Cleaning Procedures 1. Carry out correct isolation procedures and test unit for power loss. 2. Isolate the water supply to the machine. 3. Remove and replace the water filter cartridge and purge approx 4ltrs of water through filter. 4. Carry out visual inspection of the unit. 5. Remove the black top plastic cover on the evaporator. 6. Check condition of water distributor and tubes. 7. Check condition of plastic water pan at the bottom of evaporator. 8. Check water float operation and water level. Adjust or replace if required. 9. Check water trough for foreign matter and clear if required. 10. Check water reservoir. 11. Check for any water leaks. 12. Isolate the refrigeration circuit, so as no refrigeration of the evaporator occurs this can be done by either separating the compressor overload from the contactor ( all AR models )or isolating the power to the liquid line solenoid valve coil on (all FFE models) ... -
Page 14: Trouble Shooting
Revised January 2012 3. Trouble Shooting Symptom Possible Causes Solution Ice Machine not running. Power supply turned off Check power lead is plugged in and turned on. Check circuit breaker. 1.Power supply light is off Rotate switch clockwise to reset. Turn switch to Auto Emergency button pressed. 2.PC Board light is off Turn switch to Manual, if PC Board light comes on then timer On/Off or Man/off/Auto switch off. Sti ll no PC Board Light requires adjusting or setting. Machine off on timer. If PC Board power light still stays off check F1 fuse on PC Board. Adjust bin full sensitivity via adjustment pot, (5 LED bars on‐ 5 off ) 3. Bin Full light is on but the bin is Bin full sensor requires sensitivity adjusting If the LED is on, machine should be on time delay, (time delay ... -
Page 15: Electrical Information
Revised January 2012 V I . Electrical Information a) GRANT FF0.4AR / FF0.6AR . Control Panel on B400 Bin with Manual On/Off switch fitted Manual On/Off switch on ITS system is located on Bin. LOCATIO FUNCTION N A Green power light indicates power to machine when lit ... - Page 16 Revised January 2012 Electrical iring Diagram of the Scale Ice Machines FF0.4AR / FF 0.6 AR (240v 50Hz Single Phase) ...
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Page 17: C) T Imer Control W Iring Diagram
Revised January 2012 d) T imer Control W iring Diagram FF0.4AR / FF0.6AR ... -
Page 18: Pc Board Explained
Revised January 2012 V II PC BOARD EXPLAINED Ice making PC board layout (back 、 ） b) Ice making external indicator small board layout ... -
Page 19: C) Ice Full Sensor Sensitivity Small Board Layout
Revised January 2012 c) Ice full sensor sensitivity small board layout 2. Fault Indicator * When the power frequency is lower than 45Hz more than five seconds al the same time ... -
Page 20: Dip Switch
Revised January 2012 3. Dip Switch Attention: Please press reset button before resetting DIP switch. a). 8‐bit DIP switch ( ) 1 (ON): Cancel starting up delay. 2,3 (ON):Select sub zero ice machine’s ice-full sensor 4 (OFF): Not Used 5 (OFF): Select 1440RPM model. 6 (ON): Turn on the buzzer. Warning: Please press reset button before resetting DIP switch ... - Page 21 Revised January 2012 The function of the sixth bit DIP switch: Selects the buzzer alarm. When the sixth bit DIP switch is in the on position, the buzzer will alarm when a fault is triggered, in contrast, the buzzer is ...
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Page 22: Electrical Wiring Diagram
Revised January 2012 4 Electrical wiring diagram ． a). Ice machine PC board wiring diagram Ice making PC board layout (front) figure 4‐ 1 ... -
Page 23: B) Ice Machine External Indicator (Small Board) Wiring Diagram
Revised January 2012 b) Ice machine external indicator (small board) wiring diagram c) Ice making sensor wiring diagram ... -
Page 24: Ice Full Sensor Sensitivity And Dip Switch Settings
Revised January 2012 5 Ice full sensor sensitivity and DIP switch settings ． a) Ice full sensor sensitivity settings 、 Flake ice machine X B70—XB550 model 5 indicator. ： Sub Zero machine P B0.4F/A—PB50F/A model 5 indicator. ： b) Setup of ice full sensor sensitivity Ice full sensor sensitivity may diminish after a certain period of time. At this time, It can be adjusted by the ice full sensitivity resistor on the PC board. Clockwise rotation will increase the number of lights; ice full sensor sensitivity will increase accordingly. Anti clockwise rotation will decrease sensitivity and decrease the number of lights The LED 1 next to the 8 dip switches is the sensitivity indicator, when the LED is lit the bin is empty, when the LED is off the bin is full. ... -
Page 25: Grant T Imer
The theory is to supply only the ice needed for the demand, an example would be: Grant one ton FFE on a Follett DEV. (ice bin) Customer requires 400 kg of ice at 7am and 200kg at 4pm. T imer will require to be set from 10pm to 7am and 11am to 4pm Grant 1 ton FFE = 1000kg /24hrs = 41kg /1hr 400kg will require the unit to run for 10hours. 200kg will require the unit to run for 5hours. Of course this is only an example and every application will vary but the principal is the same, it will be up to the technician to consult with the customer and set timer to suit their needs. W ith the timer set up correctly, the machine will produce Ice on demand and prevent clumping of ice ... -
Page 26: B)Operating Instructions
Revised January 2012 b) Operating Instructions Before turning power ON, Check that your unit conforms to the operating voltage. If the unit has not been in operation for a long period the battery may have discharged and may not work immediately. Connect the unit and switch power source on, wait for approximately ten minutes ... -
Page 27: C)Specifications
Revised January 2012 c) Specifications Rated Voltage 240VAC Voltage tolerance 220‐260VAC Frequency 50hz Power consumption 1w Drive Method Quartz controlled stepping motor Cycle 24 hours T ime precision +/‐3 sec/ day at 22 degrees Celcius Circuit Separate Switch construction SPST Manual ON/OFF ON/AUTO/OFF switch Load Resistive Load 16A Incandescant lamp 10A Capacity 12A Inductive 220v AC 1500W ... -
Page 28: Technical Notes
Revised January 2012 IX . Technical Notes 1. All PC boards after November 2009 will be the bypass model which will allow all sensors to be bypassed for diagnostic purposes. 2. All Grant ice machines up to 10 ton use the same PC board. 3. All grant ice machines 10 ton and over use a PLC. 4. All the old style PC boards have no bypass on any faults except by bridging using the correct ohm resister. 5. Bin full sensor can be bypassed by bridging terminals 2 and 3. 6. All sensors can be bypassed with the correct resister. 7. Low temp sensor can be bypassed with a 10 ohm resister. 8. High condenser temp sensor can be bypassed with a 91 ohm resister. ... -
Page 29: Service Bulletins
Revised January 2012 X. Ser vice Bulletins Coast Distri butors CD series Water F i lters Coast tip of the week: Blocked water filter bypass If you need to bypass the water fi lter in an emergency you can carry out the following to get you out of trouble until you can replace the cartridge. 1. Isolate water to filter 2. Remove filter cartridge 3. Remove small O ring 4. Re‐install filter cartridge 5. - Page 30 Revised January 2012 Water regulating valve If there is water dripping or flowing into the bin from under the evaporator, check the water flow over the evaporator. Ball float adjustment under Water flow regulator valve To adjust the water flow so as not to overflow the drain catchment tray, adjust this valve slowly to regulate the water flow. If the flow is too high, the water overflows the drain tray. If the flow is insufficient there will be little ...
- Page 31 Revised January 2012 ...
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