Kold-Draft GB1064L Service Manual

Installation, Operation, Technical

This manual is updated periodically. Visit http://www.kold-draft.com/resources/literature.php for the latest version.

Service and Replacement Parts Manual

Ice Cube Makers - GT36x, GT56x, GB56x, GB106x

Stacking Instructions - Multiple GB56x or GB106x

Ice Cube Crushers - T27x, T28x

Pre-charged Remote Air-Cooled Condenser - RC214APV, RC314APV

SC200

GT36x GT56x GB56x GB106x

KOLD DRAFT INTERNATIONAL

1525 East Lake Road

Erie, PA 16511-1088 U.S.A.

(800) 840-9577

FAX: (800) 548-9392

www.kold-draft.com

May 5, 2017

KOLD-DRAFT

Installation, Operation, Technical Service Specifications and Replacement Parts Manual

Ice Cube Makers GT36x, GT56x GB56x, GB106x

Stacking Instructions Multiple GB56x or Multiple GB106x

Ice Cube Crushers T27xT28x

Pre-charged Remote Air-Cooled Condenser

RC214APV (For GB/GT56xR) RC314APV (For GB106xR)

Unauthorized reproduction of this manual is freely permitted for all purposes except for monetary gain.

It is not guaranteed that this service manual is up to date, technically correct, complete, or free from writing problems or that the product is free from minor flaws or that it meets the needs of the customer.

May 2017

Table of Contents

SAFETY INFORMATION ................................................................................................................. 1

ICE MAKER IDENTIFICATION ........................................................................................................ 2

Serial Number Plate Location ....................................................................................................... 2

Date Code Key .............................................................................................................................. 2

Model Number Key ....................................................................................................................... 3

ICE CUBER Installation .................................................................................................................... 4

What’s in the box .......................................................................................................................... 4

Required Tools .............................................................................................................................. 4

Pre-Install Checklist ...................................................................................................................... 5

Additional Pre-install Information for Cooling Tower Applications (L models) .............................. 7

ASSEMBLY ...................................................................................................................................... 8

Unpacking ..................................................................................................................................... 8

Assembly Procedure ..................................................................................................................... 8

INITIAL START PROCEDURE ....................................................................................................... 10

ICE MACHINE CLEANING PROCEDURE ..................................................................................... 11

SPECIFICATIONS .......................................................................................................................... 12

Machine Capacities ..................................................................................................................... 12

Electrical Use and Machine Dimensions/Weight ........................................................................ 13

Water Fill Levels, Cycle Times and Harvest Weights ................................................................. 14

Cube Information ........................................................................................................................ 14

Typical Refrigerant Operating Pressures .................................................................................... 14

COMPONENTS .............................................................................................................................. 15

Mechanical Components ............................................................................................................ 15

GB106x Series Unique Components .......................................................................................... 19

Controller .................................................................................................................................... 20

ERROR-CODE TROUBLESHOOTING .......................................................................................... 23

SEQUENCE OF OPERATION ....................................................................................................... 28

Ice Making Sequence ................................................................................................................. 28

Ice Bin Full/Cleaning Mode ......................................................................................................... 29

Description of Each Process ....................................................................................................... 29

Fill ............................................................................................................................................ 29

Freeze ..................................................................................................................................... 29

Lower ....................................................................................................................................... 30

Harvest .................................................................................................................................... 30

Raise ....................................................................................................................................... 30

Ice Bin Full ............................................................................................................................... 30

Cleaning Mode ........................................................................................................................ 30

Water Plate Closure Problems ................................................................................................ 30

Shutdown-High Pressure ........................................................................................................ 30

START METHODS ......................................................................................................................... 31

Ice Making Mode Start Up .......................................................................................................... 31

Cleaning Mode Start Up .............................................................................................................. 31

GT36X, GT56X, GB56X WIRING DIAGRAM ................................................................................. 32

GB1064 A & L WIRING DIAGRAM ................................................................................................ 33

GB106XR WIRING DIAGRAM ....................................................................................................... 34

COMPRESSOR TEST PROCEDURE ........................................................................................... 35

Test Procedure for a Short Circuit to Ground (Ground Fault) ..................................................... 36

Test Procedure for Continuity And Proper Resistance ............................................................... 36

Test Procedure for Compressor Electrical Components ............................................................. 37

Testing The Run Capacitor: ........................................................................................................ 37

Testing The Start Capacitor: ....................................................................................................... 37

Additional Service Information .................................................................................................... 38

WATER PLATE REPLACEMENT .................................................................................................. 39

WATER PLATE ALIGNMENT ........................................................................................................ 40

WATER PLATE UP/DOWN POSITION AND ADJUSTMENT ........................................................ 41

ACTUATOR MOTOR KIT APPLICATION LIST ............................................................................. 42

PROBE TEST PROCEDURE ......................................................................................................... 43

INSTRUCTIONS FOR GB1064 WATER FILL ADJUSTMENT ...................................................... 44

TROUBLESHOOTING ................................................................................................................... 46

PARTS DIAGRAMS ....................................................................................................................... 52

GT36x Parts ................................................................................................................................ 53

GT56x Parts ................................................................................................................................ 54

GB56x Parts ................................................................................................................................ 56

GB106x Parts .............................................................................................................................. 58

PARTS LIST ................................................................................................................................... 61

ACTUATOR MOTOR KIT APPLICATION LIST ............................................................................. 64

STACKING INSTRUCTIONS ......................................................................................................... 65

ICE CUBE CRUSHERS - T27X ...................................................................................................... 68

ICE CRUSHER SAFETY INFORMATION ...................................................................................... 69

ICE CRUSHER INSTALLATION .................................................................................................... 70

Pre-Install Checklist .................................................................................................................... 70

Assembly/Installation .................................................................................................................. 71

Initial Start-Up ............................................................................................................................. 74

ICE CRUSHER OPERATION ......................................................................................................... 75

ICE CRUSHER CLEANING PROCEDURE ................................................................................... 76

ADJUSTMENT AND LUBRICATION .............................................................................................. 76

WIRING DIAGRAM ........................................................................................................................ 77

PRE-CHARGED REMOTE AIR COOLED CONDENSER ............................................................. 78

PRE-CHARGED REMOTE AIR COOLED INSTALLATION ........................................................... 79

Pre-Install checklist ..................................................................................................................... 79

Installation ................................................................................................................................... 80

Specifications .............................................................................................................................. 80

Minimum Total Charge Required ................................................................................................ 80

Electrical Information .................................................................................................................. 82

Removing From Service ................................................................................................................. 82

SC200 Series Ice Machine……………………………………………………………………………….83

ICE CUBER-SAFETY INFORMATION

Special attention should be given to potential hazard labeling on the equipment and the signal words and symbols that are used throughout this manual. They may also be used to alert against unsafe practices

Note: Note is used to notify personnel of installation, operation or maintenance information which is important, but not a cause of personal injury or property damage.

Warning: Indicates a potentially hazardous situation that may result in minor or moderate

injury. The situation may also cause minor damage to the machine

Caution: Indicates a potentially hazardous situation that could cause serious injury or death.

The situation may also critically damage the machine

DANGER: Indicates a potentially hazardous situation that could cause serious injury or death.

The situation may also critically damage the machine

Note:

• Check for freight damage before proceeding with the equipment installation. Be sure to

inspect the equipment carefully for any damage that may not have been evident on the outside of the carton. Contact the freight carrier immediately to report any damage and file a claim.

• Read the entire manual before installing, operating or servicing the machine

• To ensure optimal efficiency and productivity follow these installation instructions exactly.

• All machines have been tested and adjusted for correct performance at the factory.

• Knowledge of proper installation and service procedures is essential for the safe operation

and maintenance of KOLD-DRAFT equipment. Refer all installation and service work to qualified technicians.

• This equipment must be installed in compliance with the applicable federal, state/province,

and/or local plumbing, electrical, and health/sanitation codes and requirements.

• Always disconnect the power supply before servicing the equipment or when the equipment

will not be used for a period of time. Some circuits remain energized when the machine is switched off.

• Never operate equipment that has been damaged or does not have all the protective covers

in place.

• Never operate equipment that has been altered from the original KOLD-DRAFT

specifications.

• Use of non-approved parts when servicing KOLD-DRAFT equipment will void the equipment

warranty.

Warning: Use only genuine KOLD-DRAFT replacement parts, Use of non-approved parts

when servicing KOLD-DRAFT equipment may create a safety hazard, cause equipment damage, property damage and will void the warranty.

ICE MAKER IDENTIFICATION

Serial Number Plate Location

See the following for the location of the serial number plate.

Note: A complete model number and date code are essential for the accurate selection of replacement parts. The sticker will be applied to the front of the top cross member of the machine

Date Code Key

208-230V/60HZ/1PH 30oz. R-404a

GB564AK 000000 5HT

KDINDUSTRIES, INC. ERIE, PA. U.S.A.

5K = 2000 6K = 2010 7K = 2020 8K = 2030

5A = 2001 6A = 2011 7A = 2021 8A = 2031

5B = 2002 6B = 2012 7B = 2022 8B = 2032

5C = 2003 6C = 2013 7C = 2023 8C = 2033

5D = 2004 6D = 2014 7D = 2024 8D = 2034

5E = 2005 6E = 2015 7E = 2025 8E = 2035

5F = 2006 6F = 2016 7F = 2026 8F = 2036

5G = 2007 6G = 2017 7G = 2027 8G = 2037

5H = 2008 6H = 2018 7H = 2028 8H = 2038

5J = 2009 6J = 2019 7J = 2029 8J = 2039

M = JANUARY R = APRIL U = JULY X = OCTOBER

N = FEBRUARY S = MAY V = AUGUST Y = NOVEMBER

P = MARCH T = JUNE W = SEPTEMBER Z = DECEMBER

YEAR KEY

MONTH KEY

EXAMPLE

5HS = MAY, 2008

Model Number Key

Note: Model numbers mentioned in this manual that look like GB56x are used to refer to general families of machines. The “x” could stand for any combination of a machine’s electrical characteristics, condenser type and cube size

8 220-380 Volt 50 Hz 3 phase plus neutral (4 wires + ground)

Cube Size

GB561A

115 Volt 60 Hz 1 ph (2 wires + ground)

208-230 Volt 60 Hz 1 ph (2 wires + ground)

Electrical Characteristics

Full Cube

Half C ube

Condenser Type

Air Cooled Condenser, Self Contained

Liquid Cooled Condenser, Self Contained

Remote Air Cooled Condenser

500 Series

1000 Series

42" Wide

30" Wide

Cabinet Width

208-230 Volt 60 Hz 3 ph (3 wires + ground)

230 Volt 50 Hz 1 ph (2 wires + ground)

R-404a Tecumseh compressor/POE lubricant/Energy Efficient

300 Series

Series

Modification Code

ICE CUBER INSTALLATION

Warning:

• Do not operate equipment that has been damaged.

• Refer all maintenance to qualified personnel.

• Instruct all personnel in the proper use of the equipment.

• Clean up any liquid spills immediately.

• Always install equipment on a stable and level surface.

• All models are intended for indoor use only. Do not install the equipment in unprotected

outdoor areas.

• Always securely attach individual component sections together. (Bins, Bagging Machines, Dispensers, Crushers, Ice Machines etc.

• Do not install the equipment in wet areas.

• Do not locate the equipment near any heat source, in direct sunlight, in high ambient areas, or

without proper clearance for ventilation. Placing equipment in these locations will result in reduced capacities, high system pressures and may cause equipment failure.

Note: Each Kold-Draft ice machine has successfully completed a quality assurance test and has been factory inspected before shipping. When receiving the unit please inspect it for physical damage. If damage is found:

1. Have carrier note the damage on the bill of lading.

2. File a damage claim report with the carrier immediately.

3. Call Kold-Draft with your claim number to arrange replacement or repair.

What’s in the Box

• Kold-Draft Ice Machine

• Warranty card attached to the front of the machine

• Two ice deflectors (four ice deflectors with a GB106x machine)

• Drain Pan hose with clamp (Two hoses and two clamps with a GB106x machine)

• Adhesive-backed foam weather-strip tape

• Information packet

o Installation And Operation Manual o 4x 1/4-20 stainless steel bolts o 4x 1/4” stainless steel washers o 2x 8-32 pan head stainless steel Philips head screws

Required Tools

• #2 Philips Head Screwdriver

• 7/16” Socket and Wrench

• Channel Lock Pliers

Pre-Install Checklist

• Ambient air temperatures at the install location are between 45°F (7°C) and 90°F (32°C), the machine must be installed indoors.

• The machine will have the minimum opening sizes listed below. Heights listed are strictly the ice machine and do not include the height of the bin. Depths listed are adjusted to accommodate plumbing and electrical hookups.

Width

Depth

Height

Model

(in)

(cm)

(in)

(cm)

(in)

(cm)

GT36xA & GT36xL

GT56xA ,L,R

GB56xA

137

GB56xL,R

137

GB106xA

137

102

GB106xL,R

137

102

• Each ice maker and each ice bin must enter the drain stack through separate connections. Models equipped with a liquid condenser that does not re circulate coolant must have a drain for each condenser that enters the drain stack through separate connections

• The drain hose or pipe will remain a constant diameter from the machine to the drain

o The building drain must be able to accommodate all the drain water from the ice

machine operation.

• Individual drains will not be directly connected to a common manifold, drain or standpipe. If individual drains are to be discharged into a common manifold, drain or standpipe, a minimum 38mm (1.5”) air gap must be provided at each connection. This is to prevent any backflow of drain water into the ice maker or ice bin.

• Drain lines will be installed with a minimum drop of 1” per 3’ run (2.5cm per meter run).

• The temperatures of the water supply fall between 45°F (7°C) and 90°F(32°C)

• The water supply must be potable, not laden with sediment, and have free chlorine levels no

greater than 0.2ppm.

• A minimum 5 psig (0.034 MPA) dynamic water supply pressure is required for proper operation of the ice maker water valve. Please note that on liquid cooled ice machines, where the same water supply is used for both condenser cooling and the potable water supply, the demand for condenser coolant may cause the supply pressure to drop. This is most notable at the time of peak load, at the beginning of the freeze cycle. The maximum water supply pressure is 100 psig (0.6 MPA).

• All water lines have been purged before connection.

• All KOLD-DRAFT models are intended to be installed with a permanent connection to the field

electrical supply. Drop cord connections are not to be used with this equipment. Always be sure the power supply is the same as the ice machine’s electrical specification, which is listed on the serial number tag on the front of the top frame cross member

• Each ice maker must be connected to the grid through its own dedicated fuse or HACR type circuit breaker.

• Each ice maker must be connected to a separate protected circuit with no other loads.

• Fused disconnects, installed adjacent to each ice maker, are recommended and may be

required by local codes. These components must be supplied by the installer.

• Electrical service must fall within the voltage tolerances listed below:

• Breaker or fuse service must be no greater than the maximum rating as specified on the

rating label attached to the back of the machine.

• The minimum circuit ampacity listed on the back of the machine does not indicate a typical running current value. Use the minimum ampacity value for sizing branch circuit conductors up to 26 feet (8 meters) in length. For a conductor length over this length, increase the wire gauge as required by code.

DANGER: Failure to comply with these regulations may cause serious injury or death

and cause damage to the machine and its surroundings.

Warning: Water Treatment: There are no specific requirements for water treatment provided

that the ice making supply water is potable and not laden with sediment. The use of

additional water treatment may facilitate or reduce the frequency of the need for cleaning. Please consult your local water conditioning supplier for specific

recommendations.

Note:

• Ambient temperatures higher than the maximum specification will result in reduced

capacities and high system pressures in air-cooled models. Temperatures lower than the minimum will cause the machine to malfunction due to an inability to eject the ice from the evaporator. Ambient temperatures less than 60°F (15°C) may cause the bin thermostat to malfunction.

• Clearance must be provided for ventilation and access for service. Ventilation is

especially important for models with air-cooled condensers. Failure to provide adequate clearance may result in reduced capacities and high system pressures.

• Ice machine drains and bin drains may be insulated to prevent condensation.

• The use of water treatment may increase the intervals between cleaning operations and

the overall machine life.

• If a water pressure regulator is used, the recommended setting is 30 to 50 psig (0.2 MPA

to 0.3 MPA) dynamic.

• Do not connect the ice machine to a hot water supply line. Insulate the water line from

sources of heat for greater operating efficiency. Supply water temperatures higher than the recommended maximum will cause reduced capacities.

• Normal protector size is based on rated voltage and operation at lower than extreme

temperature limits. Branch circuit conductors may be sized to allow increasing the protector value up to the specified maximum. This may avoid nuisance protector opening under harsh operating conditions.

Nominal (V)

No-Load Maximum

Full-Load Minimum

115 (1 Series) 126 104

208-230 (4 and 5 Series) 250 198

230 (7 Series) 250 210

220/380 (8 Series) 420/3 phase 210/1 phase

Additional Pre-install Information for Cooling Tower Applications (L models)

The ice machine does not need to be modified for use with a cooling tower provided the cooling tower is properly designed for the application. Information regarding the amount of heat rejection, as well as the pressure drop through the condenser and liquid valves is required to properly select or design a cooling tower application for an ice machine.

Coolant entering the condenser must not exceed 90°F (32.2°C).

Coolant exiting the condenser must not exceed 110°F (43.3°C).

Allow for a pressure drop of 7 psi (48 KPA) between the liquid coolant inlet and outlet of the condenser.

The condenser liquid control valve will regulate the flow of coolant through the condenser, thereby controlling the high side pressure in the ice machine.

ASSEMBLY

Unpacking

Unpacking a KOLD-DRAFT machine can be done by prying off the boards that are holding the cardboard box to the shipping pallet. The box can then be lifted vertically to expose the machine. Tools to complete this job would include a claw hammer or some other form of pry-bar.

Assembly Procedure

1. Remove the ice machine front-cover panel, top-cover panel and side-cover panels from the ice machine frame.

2. Remove all shipping materials from the ice machine. Cut off the water plate shipping strap.

3. For proper operation the ice machine and ice bin must be on a level surface. If the surface the ice bin will be installed on is not level, use shims or the adjusters on the ice bin legs to bring the machine to level. If shims were used, seal the bin to the floor using a sealant with NSF certification. If there are gaps larger than 1/8” (3mm) install a cove molding around the bottom of the bin to reduce the gap and seal the cove molding to the floor with the approved sealant.

4. Confirm that the following holes are installed in the bin top: a hole corresponding to the ice drop zone, drain pan outlet, bin level probe and the threaded mounting holes for the supplied bolts at the four corners of the machine. The hole for the drain pan outlet should be 2”(5cm) in diameter to allow sufficient access for the clamp. Drain hoses for drain pan outlets in GT36x, GT56xA, GB56x and the lower halves of GB106x models get directed through the back of the ice bin. Drain hoses for drain pan outlets in GT56xL and the upper halves of GB106x models get directed through pre-cut holes in the back of the ice machine frames. Drain pans should never be allowed to drain directly into the ice bin. After installation, seal around the drain tube where it leaves the machine.

Note: All KOLD-DRAFT bins will have a provision for the drain pan outlet tube to exit the rear of the bin. Ice machines that will be used on bins not manufactured by KOLD-DRAFT will require a drain riser adapter made by KOLD-DRAFT to allow sufficient clearance for the drain pan outlet tube to exit the back of the assembly.

5. Install gasket on top of bin if not already installed. Gasket material must be positioned so that it extends to the outside edge of the perimeter of the ice maker chassis when the ice-maker is in place. To apply the gasket, peel away the white backing strip and press firmly in place.

6. Carefully lift the ice machine and position it on the ice storage bin. Securely attach the ice machine to the ice storage bin with the supplied washers and bolts or other non-corroding hardware if not installed on a KOLD-DRAFT bin. If the ice machine is installed on an installed with an accessory such as a crusher, follow the installation instructions with the other equipment.

DANGER: It is highly recommended that 2 or more people perform this job, if the

machine falls it could cause serious injury or death.

7. Make all plumbing and electrical connections to the ice machine and ice storage bin in

GB Models

GT Models

accordance with local regulations.

8. Remove the strap securing the bin level probe and install through the bottom of the ice machine. Ice machines on top of other ice machines or ice crushers should have the bin probe stuck through the bottom of the machine directly above the bin. The hole for the bin probe will be in the same location on all variations of these machines, just to the right of the ice-making compartment or the ice chute in GT56x applications.

9. Install the ice deflectors.

Front Deflectors:

Rear Deflectors:

INITIAL START PROCEDURE

1. Be sure that the on-off switch is in the “off” position and the ice-clean switch is in the “clean” position.

2. Turn on the power and water supply and check all supply lines for leaks.

3. Make sure all pump and water tank hoses are connected, then pour 1/2 quart (1/2 liter) of clean potable water into the circulation system to lubricate and prime the pump(s).

Note: this can be done by either pouring the water directly onto the evaporator, the evaporator is equipped with drain holes for this purpose and to allow melted frost to drain into the water tank. In tight spaces a funnel and hose can be used to pour water onto the evaporator. Alternatively the water can slowly be poured into the clear control stream box on the front of the water plate or between the evaporator and the top left wall of the water plate.

4. Move the on-off switch to the “on” position and observe the water flowing from the distributor tube filling the water tank. Also, observe that the water pump is circulating water through the system. A momentary sucking, cavitation sound is normal at the beginning of the process when the water level is low. The water fill is complete when the water level in the probe tube reaches the high-level probe. Observe that the water valve is de-energized by ensuring water has stopped flowing through the distributor tube. Check that there are no water leaks from the hoses or water tank into the drain pan.

Note: For GB106x models, observe that the water fill difference between the upper and lower water tanks measured from the top of the control stream box is less than ⅛ inch (3 mm) for “C” models and ¼ inch (6 mm) for “HK” models.

5. Pull down on the right side of the water plate, stretching the springs until the water plate switch is disengaged, observe that the pump stops and the actuator motor rotates the cam arms counter-clockwise. Observe that the cam arms continue to turn, opening the water plate fully, dumping the water in the tank. After a moment, the cam arm rotation will reverse and close the water plate. The cam arm rotation will stop when the water plate is fully closed and the water fill process will repeat.

6. Move the ice-clean switch to the “ice” position, the water plate will cycle down and up one more time dumping the water. When this completes the machine will begin to make ice, observe that the compressor and the condenser fan motor, if so equipped, begin to run. If possible with liquid cooled models ensure there is water flow during the ice making cycle.

7. Test the bin level control operation by holding ice against it. Adjust the controller, if required, to shut off the ice machine within 30 seconds of contact between the ice and probe.

8. Make sure that the drain pan, ice deflectors and stacking chute (GB106x models and stacked ice machines only) are properly installed. Replace and secure all the cabinet panels. The front panel gets secured to the machine with the provided stainless steel sheet metal screws.

9. Discard all the ice from the start-up cycles, then clean and sanitize the ice storage bin according to the instructions provided with the bin.

10. Complete and mail the registration certificate to the factory. Leave all instructions with the owner/user.

ICE MACHINE CLEANING PROCEDURE

It is recommended to perform this cleaning procedure at a minimum twice per year.

Note: Use a clean plastic bottle fitted with a stopper or cap that has a pouring tube and a vent to facilitate mixing and pouring of the specified solutions.

1. Mix 3 oz. (500023) KD Nickel-Safe Ice Machine Cleaner per gallon of warm water.

2. If the ice machine is operating, wait until the ice falls out of the evaporator, then move the

Ice-Clean Switch to the “Clean” position.

3. Empty the storage bin and turn off any other ice machines on the same bin.

4. After the water fill is complete, turn off the ice machine. While pinching the water level

control tube, remove it from the probe cap. Hold the water level control tube high enough so that the water does not overflow, release the control tube and pour about half the cleaning solution into the top of the probe tube. Pinch the control tube again and reassemble the probe tube to the cap. Pour the remaining cleaning solution into the control stream box.

5. Turn on the ice machine and allow the solution to circulate for 15 minutes then pull down

on the right side of the water plate. This will cause it to open and dump the cleaning solution and then refill with water. Repeat the dump process three times to be sure all the cleaning solution is rinsed out of the machine.

6. Mix a sanitizing solution containing 0.5 ounce (15 ML) 5-1/4% sodium hypochlorite

(household bleach or equivalent) and 1 quart (3.8 Liter) clean water.

7. Using the same process as in step #4, pour half of the sanitizing solution into water level

probe tube and the other half into the control stream box.

8. Allow the solution to circulate for 15 minutes. Pull down on the right side of the water plate,

to cause it to open and dump the sanitizing solution and then refill with water. Repeat this process two times to be sure all the cleaning solution is rinsed out of the machine. If necessary, adjust the water level probes to the proper levels.

9. While the cleaning and sanitizing solutions are circulating, clean and rinse all accessible

parts and surfaces of the ice machine with clean towels and . Mix a cleaning solution containing 8 tablespoons (1/2 cup) (96g) baking soda and 1 Gal. (3.8 Liter) of warm water and a sanitizing solution containing 1 teaspoon (5 ML) 5-1/4% sodium hypochlorite and two quarts (1.9 Liter) of clean water.

10. After cleaning has been completed, move the Ice-Clean Switch to the “Ice” position. Check

the operation of the machine, particularly the water level and subsequent ice cube formation. Adjust the water level probes if needed.

SPECIFICATIONS

Machine Capacities

Lb (Kg) per 24hr Lb (Kg) per 24hr

90/70 Ambient /W ater 70/50 Ambient/Wat er

GT361AC 216 (98) 7.95 (631) 270 (122.47) 5.96 (473) 22 (1.84) n/a 63

GT361AHK 255 (116) 7.31 (581) 332 (150.59) 5.12 (406) 23.6 (1.97) n/a 126

GT361LC 262 (119) 5.56 (441) 309 (140.16) 4.56 (362) 22.2 (1.85) 165.3 (13.79) 63

GT361LHK 316 (143) 5.18 (411) 373 (169.19) 4.25 (337) 22.9 (1.91) 180.7 (15.08) 126

GT364AC 215 (97) 7.57 (601) 269 (122.01) 5.68 (450) 22.1 (1.8) n/a 63

GT364AHK 255 (116) 6.91 (548) 332 (150.59) 4.84 (384) 23.6 (1.97) n/a 126

GT364LC 255 (115) 5.76 (457) 301 (136.53) 4.72 (374) 22 (1.8) 163.4 (13. 63) 63

GT364LHK 303 (137) 5.34 (424) 358 (162.38) 4.38 (347) 23.2 (1.94) 188.5 (15.73) 126

GT561AC 369 (167.22) 6.63 (526) 458 (207.74) 5.04 (400) 16.6 (1.39) n/a 108

GT561AHK 453 (205.44) 6.19 (491) 575 (260.81) 4.52 (358) 20.4 (1.7) n/a 216

GT561LC 447 (202.56) 5.15 (408) 510 (231.33) 4.43 (351) 13.2 (1.1) 137.4 (11.47) 108

GT561LHK 500 (226.89) 4.85 (384) 580 (263.08) 4.07 (323) 17.1 (1.43) 175.9 (14.68) 216

GT564AC 380 (172.19) 6.88 (545) 471 (213.64) 5.23 (415) 16.7 (1.39) n/a 108

GT564AHK 433 (196.49) 5.99 (475) 550 (249.47) 4.37 (346) 18.4 (1.54) n/a 216

GT564LC 429 (194.43) 5.14 (407) 489 (221.80) 4.42 (350) 16.9 (1.41) 175. 6 (14.65) 108

GT564LHK 494 (224.26) 4.73 (375) 573 (259.90) 3.97 (315) 15.9 (1.33) 144.2 (12.03) 216

GB561AC 360 (163) 7.1 (563) 446 (202.30) 5.40 (428) 25 (2.1) n/a 108

GB561AHK 428 (194) 6.6 (524) 544 (246.75) 4.82 (382) 25 (2.1) n/a 216

GB561LC 420 (190) 5.5 (437) 479 (217.27) 4.73 (375) 25 (2.1) 142 (11.9) 108

GB561LHK 500 (227) 5.0 (397) 580 (263.08) 4.20 (333) 25 (2.1) 148 (12.4) 216

GB564AC 357 (162) 7.2 (571) 443 (200.94) 5.47 (434) 25 (2.1) n/a 108

GB564AHK 424 (192) 6.5 (516) 538 (244.03) 4.75 (377) 25 (2.1) n/a 216

GB564LC 460 (209) 5.2 (413) 524 (237.68) 4.47 (354) 25 (2.1) 150 (12.5) 108

GB564LHK 460 (209) 5.2 (413) 534 (242.21) 4.37 (346) 25 (2.1) 165 (13.8) 216

GB1064AC 725 (329) 6.1 (484) 906 (411) 4.58 (363) 23 (1.9) n/a 216

GB1064AHK 823 (373) 5.6 (445) 1045 (474) 4.09 (324) 26.5 (2.2) n/a 432

GB1064LC 835 (379) 4.46 (354) 952 (432) 3.84 (304) 16.1 (1. 34) 141.8 (11.83) 216

GB1064LHK 900 (408) 4.6 (365) 1044 (473) 3.86 (306) 24 (2.0) 163 (13.6) 432

GB1064RC & RC214APV

760 (345) 5.9 (468) 950 (431) 4.43 (351) 25 (2.1) n/a 216

GB1064RHK & RC214APV

850 (386) 5.6 (444) 1080 (490) 4.09 (324) 25 (2.1) n/a 432

Water Use, gal/100# (l/kg)

Capacity and Energy Input Rat ings

Cubes per cyc le

Model Number

kWh/100# (kJ/kg)

kWh/100#

(kJ/kg)

Potable

Condens er

Electrical Use and Machine Dimensions/Weight

Amps Amps

Ship Weight

GT361AC 12 15 1

30.1 (76.5) 25.7 (65.3) 16.9 (42.9) 180 (82)

GT361AHK 12 15 1

30.1 (76.5) 25.7 (65.3) 16.9 (42.9) 180 (82)

GT361LC 11.1 15 2

30.1 (76.5) 25.7 (65.3) 16.9 (42.9) 174 (79)

GT361LHK 11.1 15 2

30.1 (76.5) 25.7 (65.3) 16.9 (42.9) 174 (79)

GT364AC 6.5 15 2

30.1 (76.5) 25.7 (65.3) 16.9 (42.9) 180 (82)

GT364AHK 6.5 15 2

30.1 (76.5) 25.7 (65.3) 16.9 (42.9) 180 (82)

GT364LC 6 15 1

30.1 (76.5) 25.7 (65.3) 16.9 (42.9) 174 (79)

GT364LHK 6 15 2

30.1 (76.5) 25.7 (65.3) 16.9 (42.9) 174 (79)

GT561AC 18.6 30 1

30.1 (76.5) 25.7 (65.3) 30.7 (78) 228 (103)

GT561AHK 18.6 30 1

30.1 (76.5) 25.7 (65.3) 30.7 (78) 228 (103)

GT561LC 17.7 30 1

30.1 (76.5) 25.7 (65.3) 30.7 (78) 218 (99)

GT561LHK 17.7 30 1

30.1 (76.5) 25.7 (65.3) 30.7 (78) 218 (99)

GT564AC 9.5 15 1

30.1 (76.5) 25.7 (65.3) 30.7 (78) 228 (103)

GT564AHK 9.5 15 1

30.1 (76.5) 25.7 (65.3) 30.7 (78) 228 (103)

GT564LC 9.1 15 1

30.1 (76.5) 25.7 (65.3) 30.7 (78) 218 (99)

GT564LHK 9.1 15 1

30.1 (76.5) 25.7 (65.3) 30.7 (78) 218 (99)

GB561AC 18.6 30 1

42.3 (107.4) 31.1 (79) 17 (43.2) 207 (94)

GB561AHK 18.6 30 1

42.3 (107.4) 31.1 (79) 17 (43.2) 207 (94)

GB561LC 17.7 30 1

42.3 (107.4) 25.63 (65.1) 17 (43.2) 185 (84)

GB561LHK 17.7 30 1

42.3 (107.4) 25.63 (65.1) 17 (43.2) 185 (84)

GB564AC 9.5 15 1

42.3 (107.4) 31.1 (79) 17 (43.2) 207 (94)

GB564AHK 9.5 15 1

42.3 (107.4) 31.1 (79) 17 (43.2) 207 (94)

GB564LC 9.1 15 1

42.3 (107.4) 25.63 (65.1) 17 (43.2) 185 (84)

GB564LHK 9.1 15 1

42.3 (107.4) 25.63 (65.1) 17 (43.2) 185 (84)

GB1064AC 16.3 25 1

42.3 (107.4) 31.1 (79) 33.7 (85.6) 348 (158)

GB1064AHK 16.3 25 1

42.3 (107.4) 25.7 (65.3) 33.7 (85.6) 312 (142)

GB1064LC 15.4 25 1

42.3 (107.4) 25.7 (65.3) 33.7 (85.6) 312 (142)

GB1064LHK 15.4 25 1

42.3 (107.4) 25.7 (65.3) 33.7 (85.6) 312 (142)

GB1064RC & RC214APV

18.1 30 1 42.3 (107.4) 25.7 (65.3) 33.7 (85.6) 335 (152)

GB1064RHK & RC214APV

18.1 30 1 42.3 (107.4) 25.7 (65.3) 33.7 (85.6) 335 (152)

40.75 (103.5) 22.75 (57.8) 30.2 (76.6) 160 (73)

CA Power

Tier

Min Circuit

Max

Fuse/Breaker

WDH

Ship Weight #(kg)

RC214APV

Dimensions - inches (cm)

Model Number

Water Fill Levels, Cycle Times and Harvest Weights

Model Group and Cube Type

GB56x

GB106x

HK C HK

Water Fill Level inches (mm) *

2.75 (70)

Approximate Cycle Time (Minutes)

Approximate Harvest Weight-lbs. (kg)

7.70

(3.49)

7.10

(3.22)

15.40

(6.98)

14.20

(6.44)

Note: Rough measurement from top edge of water tank to water level in control tube after water fill is complete. Additional fine adjustments may be required.

Cube Information

Cube Type

Cube Dimensions in. (mm)

Cube Weight oz. (g)

Cubes per Cycle

GB56x

GB106x

C (Full Cube)

1.25 x 1.25 x 1.25 (31 x 31 x 31)

1.15 (32.6)

108

216

HK (Half Cube)

1.25 x 1.25 x .62 (31 x 31 x 15)

.53 (15.0)

216

432

Typical Refrigerant Operating Pressures

Measurement Point

Approximate Low Side

(Suction Pressure)

High Side

(Discharge Pressure) (R-404a)

Approximate

Air Cooled

Approximate

Liquid Cooled

Beginning of Freeze Cycle

50 PSI

(345 KPA)

See Note 1

1650 KPA

(See Note 3)

Just Before Defrost Cycle Begins

12 to 20 PSI

(80 to 140 KPA)

See Note 2

1650 KPA

(See Note 3)

During Defrost Cycle

70 to 150 PSI

(480 to 1030 KPA)

150 PSI

(1030 KPA)

150 PSI

(1030 KPA)

Note 1- High side pressure in air cooled models, at the beginning of the freeze cycle, is likely to be higher than 250 PSI (1720 KPA)

Note 2- High side pressure in air-cooled models, at the end of the freeze cycle, is likely to be lower than 250 PSI (1720 KPA).

Note 3- 240 PSI (1650 KPA) is equivalent to 101°F (38°C) condensing temperature

COMPONENTS

Mechanical Components Refrigerant Compressor: Provided to pump refrigerant through the refrigeration system. See

the serial number plate for refrigerant specification and electrical characteristics.

Condenser: All air-cooled and liquid-cooled models are provided with a self-contained refrigerant condenser to remove heat from the refrigeration system. These condensers are designated in the model number as (“A”) air-cooled and (“L”) liquid-cooled. Remote air-cooled condensers are also available for some models. These are designated as (“R”) in the model number. (See the remote air-cooled section of the manual for information on these models.)

Condenser Fan and Motor: Provided with all air-cooled (“A”) models to draw air through the condenser.

Liquid Regulator Valve: Provided with all liquid-cooled (“L”) models to regulate the flow of coolant through the condenser and maintain a specified refrigerant discharge pressure.

Heat Exchanger: Provided to sub-cool the refrigerant, ensuring that the refrigerant is liquid at the inlet of the expansion valve.

Filter Drier: Provided as insurance that all moisture and impurities are removed from the refrigeration system.

Thermostatic Expansion Valve: Maintains the proper flow of refrigerant, through the system, as the load changes during the ice making cycle.

Evaporator: A plated copper evaporator is found in all models. The evaporator provides the five freezing surfaces for ice cube formation.

Defrost Valve: Directs compressor discharge gas to the evaporator, warming it to release the ice cubes during the harvest cycle.

Water Tank: Provided as a sump to hold the water required to make one batch of ice cubes.

Water Solenoid Valve: Opens to allow potable water to enter the ice machine and closes when

the water tank is filled to the correct level.

Note: There is a strainer in the water valve inlet, which protects the water valve from particles in the water supply. If the need for cleaning this strainer is frequent, an external water filter should be provided.

Water Plate: Functions as a water manifold with a flat surface and to regulate the web thickness between the cubes. This surface is positioned close to the evaporator and acts to form the sixth side of the ice cubes. The water plate surface has one spray hole for each cell in the evaporator, to provide water to the freezing surfaces. The water plate surface also has two drain holes under each cell, to allow unfrozen water to return to the water tank to be re-circulated. The water plate swings down during the harvest cycle to allow the ice cubes to fall out of the evaporator.

Note: If at any time during the Fill, Freeze, or Circulate cycle the water plate is manually opened the controller will switch to the step 3 of the ice making sequence on page 28.

Water Pump: Continuously circulates the water from the water tank, through the water plate during the ice making cycle. The water pump also operates during the wash cycle to circulate cleaning and sanitizing solution.

Actuator Motor: Rotates the cam arms counter-clockwise, at the beginning of the ice harvest cycle, to lower the water plate, so the ice can fall out of the evaporator. It then rotates clockwise, at the end of the harvest cycle, to close the water plate for the next ice making cycle.

Actuator Motor Capacitor: Installed between the two actuator motor windings, the function of this capacitor is to determine the direction of the rotation of the actuator motor.

Cam Arms: These are attached to the actuator motor output shaft and function initially to separate the water plate from the evaporator and then to support the water plate as it opens fully.

Water Plate Springs: Function as the connection between the cam arms and the water plate. They also act as a safety mechanism, stretching if any ice remains on the water plate surface as it is closing against the evaporator.

Drain Pan: Provided to catch the dreg water at the end of the ice making / cleaning and sanitizing cycles and directs it to the drain.

Ice Deflectors-Front and Rear: Provided to direct the falling ice to the storage bin.

Controller: Controls the ice machine utilizing multiple sensors, provides power directly to many

of the ice machine components. Through solid-state relays, outputs and indirectly to the compressor and condenser fan motor, if so equipped, by operation of the Contactor. The controller also provides status indication of the ice machine and components as well as diagnostics for service personnel.

On-Off Switch: The “On” position provides power to the controller to operate the ice machine. The “Off” position interrupts power to the controller to shut down the ice machine.

Caution: Switching the machine “off” does not de-energize circuits, disconnect power before

servicing.

Ice-Clean Switch: The “Ice” position signals the controller to provide full operation of the ice machine. The “Clean” position signals the controller to exclude operation of the contactor and thereby the compressor and condenser fan motor if so equipped This position is useful for cleaning the ice machine and for test procedures where operation of the compressor is not required or desired.

Ice Level Probe: Senses when the ice bin is full- Contact between this probe and the ice in the storage bin will signal the controller to shut off the ice machine. When ice is removed from the probe, the ice machine will restart.

Adjustment: While holding ice against the probe tube, turn the adjustment knob on the controller to shut off the ice machine within one minute. A warmer (CCW Bottom blue knob) adjustment will shut off the ice machine sooner. A colder (CW) adjustment will delay shut off.

Evaporator Temperature Probe: Senses the temperature of the evaporator. During the defrost cycle, the evaporator must warm sufficiently to release the ice. This probe signals the controller to terminate the defrost cycle, after the ice has fallen out of the evaporator, and start the next ice making cycle.

Note: A secondary function of this probe is to signal the controller to shut off the ice machine if the evaporator should overheat.

Adjustment: Turn the adjustment knob on the controller warmer (CCW Top blue Knob), only if the defrost time is insufficient to drop all the ice from the evaporator, before the water plate begins to close. The defrost time should be increased no more than is required to ensure all the ice has fallen from the evaporator.

Control Stream: This is a small clear box, divided into two sections and located on the front face of the water plate. It is a “safety valve” that ensures evacuation of the water reservoir so that harvest cycles will begin without undue delay. Water flowing into the left section of the box is returned to the water tank and re-circulated through the system. Water flowing into the right section of the box is drained out of the system. The velocity of the stream flowing in the box, during the ice making cycle, is an indicator of the water pressure inside the water plate. This pressure will increase as the ice cubes fill out in the evaporator, covering the drain holes provided for each cell. This pressure increase will cause the stream, normally flowing into the left section of the box, to flow over the partition and into the right section, draining the system of excess water.

Adjustment: Turn the Philips head screw located behind the expansion valve such that the stream of water falls to the left of the control stream box partition, during the early portion of the ice making cycle, before the cubes are full.

Water Level Probe Assembly: This assembly consists of three stainless steel probes or a float type which are positioned in a clear water level tube. The water level tube is mounted in front of the water tank and is connected to it by a hose. The water level in the tank is visible in the tube. The water level probes or float are positioned in the water level tube. The longest is a reference probe and the tip of this probe is at the bottom of the tube. The next longest probe is the “LOW PROBE.” When the water level is low enough to separate from the tip of this probe, the controller is signaled to start the harvest cycle. The shortest probe is the “HIGH PROBE.” When the water level touches the tip of this probe during the water fill, the controller will de-energize the water inlet valve. The water level probe float type has a HIGH float and LOW float. As of 1/1/17 we will be adding a dual float, left side float is for harvest, right side is for water level. Adjustments stay the same.

Adjustment: The reference probe should be adjusted all the way down. The “Low Probe” should be adjusted so the tip is approximately .60” (15 mm) from the bottom of the probe tube. The “High Probe” determines how much water is taken into the system at the beginning of a cycle. It is adjusted as required by the size of the cube (“C” or “HK”) and the desired fullness (dimple size) of each cube. Typically all cubes should have a small dimple at the end of the freeze cycle. Lack of a dimple in the cubes is an indicator that the water tank level is too high at the start of the cycle. The water level probe float type has a HIGH float determines how much water is taken into the system at the beginning of a cycle and LOW float when it is low enough to tip the controller is signaled to start the harvest cycle.

Note: Making cubes without a 1/8 dimple will reduce ice machine capacity and may damage the water plate surface in extreme cases. If the control stream is draining water for more than 15 seconds, at the end of the ice making cycle, the water level in the tank is

CAUTION! RISK OF PERSONAL INJURY, PROPERTY DAMAGE, EQUIPMENT FAILURE OR FIRE

Read and understand all instructions before proceeding.

too high. Lower the high probe or raise the low probe slightly, until proper operation is evident.

WATER LEVEL ASSEMBLY (FLOAT TYPE) INSTALLATION INSTRUCTIONS

DOCUMENT #307 1054 01

Refer all maintenance to qualified personnel. Disconnect power before servicing equipment.

REMOVE OLD WATER LEVEL PROBES, WIRE HARNESSES AND CONNECTORS Remove the old water level probe assembly, wire harnesses and connectors from the control box all the way to the water level tube on the water plate. Start in the top right corner of the control box. On the PC board, there is a small black connector with black, white and red wires. Un-clip it and remove it thru the hole in the top/back of the control box. Remove all connected wire harnesses & connectors all the way to the water level tube on the water tank. Note which way the wiring is routed, for installation of the new water level probe assembly. You may cut out the wiring & connectors from the old water level probe assembly as needed. All new wire harnesses and connectors will be supplied with the new water level probe assembly.

CONNECT NEW WATER LEVEL PROBE, WIRE HARNESSES AND CONNECTORS

1. In the replacement kit, find the harness with the small black connector on one end. Feed the black connector thru the hole in the control box and plug it into the PC board. The terminals on the other end of the harness will be connected in step 3 below.

2. Place the new probe with the correct float setup (see FLOAT SETUP below) into the water tube and hang it back onto the top edge of the water tank. Run the other end of the probe wire harness thru the machine to near the back of the control box.

3. Connect the terminals on the ends of the black, white & red wires to the terminals on the ends of the black, white & red wires on the harness you installed into the control box in step 1 above, being sure wire colors correspond for each connection.

FLOAT SETUP In order for the probe switches to correctly work for K CUBE machines the top float must be flipped over so the magnetic strip is on top. The round blue disk above the top float must also be moved down to the empty grove below it. Both the K and C/HK setups are shown in the picture below. The black dots indicate where the magnetic strip is. If you are unsure where the magnetic strip is located, hold the float up to a light source and the magnetic ring will be more easily identified.

FLOAT ADJUSTMENTS

In order for the machines to make a solid cube some adjustments may be needed. If the ice being harvested is too light or does not have the right dimple size to make it solid, the entire probe will need to be raised slightly. This can be done by grabbing the probe at the top and pulling slightly. If the ice is too solid and there is no dimple in the ice cube then the probe needs to be lowered. Grabbing the probe at the top and pushing it in will lower it. Raise or lower the probe for right ICE CUBE QUALITY Proper adjustment of the control stream and water level probes will produce ice cubes containing a 1/8" to 3/16" dimple.

Plate Up Switch: This switch is actuated by the water plate and informs the controller about the position of the plate—fully up or not fully up. If this switch/magnetic is not actuated when the water plate closes, because ice is remaining on the water plate surface, the actuator motor will reverse and reopen the water plate. This will continue until the surface is clear.

Adjustment: The switch/magnetic should be actuated when the front cam arm is between the 10 o’clock and 11 o’clock positions. The switch/magnetic is closed when the “plate up” LED is lit. Adjust the actuation point by adjusting the height of the white actuation screw on the water plate.

Note: Do not bend the switch lever to make this adjustment.

Arms Up Switch: This switch acts to limit the clockwise rotation of the actuator motor. It informs the controller when the cam arms are in the “12 o’clock” position (water plate up), so the actuator motor can be de-energized.

Adjustment: The switch operator, which is attached to the output shaft of the actuator motor, can be rotated on the shaft and fixed in place with a set screw. When adjusted properly, the cam arm will stop in the “12 o’clock” position. The motor stops when the flat spot on the switch operator allows the switch lever to drop down.

Note: The front water plate spring must be on the left side of the cam hub when the water plate is fully closed (cam arm in the 12 o’clock position).

Arms down Switch: This switch acts to limit the counter-clockwise rotation of the actuator motor. It informs the controller when the cam arms are in the “7 o’clock” position (water plate down), so the actuator motor can be de-energized.

Adjustment: The switch operator, which is attached to the output shaft of the actuator motor, can be rotated on the shaft and fixed in place with a set screw. When adjusted properly, the cam arm will stop in the “7 o’clock” position. The motor stops when the flat spot on the switch operator allows the switch lever to drop down. Do not allow under-travel or over-travel so that the water plate is not in the most fully-open position (critical with HK models)

Contactor: Provided with all models to carry the compressor load. On self-contained and remote air-cooled models, the condenser fan motor is also connected to the contactor. The contactor coil is rated for line voltage and the contacts are rated for definite purpose applications (FLA and LRA).

High Pressure Cutoff: A manual reset pressure switch is provided, which will open the circuit to the contactor coil if the discharge pressure should reach 435 psig (2.38 MPA gauge).As of 04/16 new AUTOMATIC no need to reset it.

GB106x Series Unique Components Stacking Chute: Provided to direct the ice, from the upper ice making section, down through the

lower ice making section of these machines.

Ice Deflectors-Upper Front and Rear: Provided to direct the falling ice, from the upper ice making section, to the stacking chute.

Controller

Machine Status: Displays the position of the Ice/Clean switch or an Alarm.

Sequence: Displays the current stage of the ice making process. (See Page 28 for more information)

Input Status: Displays the status of the individual sensors for the ice making process.

Fault Codes: The electronic control will monitor for the following conditions and shut down the ice

machine as required to prevent damage to the equipment.

>10 Rev 1.1, 1.2, 1.3, 1.4, 1.5 at any time the evaporator temperature exceeds 120F the controller will shut

down the ice maker and provide LED fault indicators.

Rev 1.6 and higher fault 10 removed

>20 Rev 1.1, 1.2, 1.3, 1.4, 1.5 If the water tray automatically cycles 3 times in a row due to a water plate

obstruction the controller will shut down the ice maker and provide LED fault indicators.

Rev 1.6 and higher After 3 c0nsecutive failed attempts at raising the water plate, the

machine will defrost in 5 minutes then try again. Led20 will flash during the 5 minute defrost. Machine will shut down if it fails after this defrost period.

>30 Rev 1.1, 1.2, If the Freeze cycle exceeds 60 minutes the controller will shut down the ice maker and provide

LED fault indicators.

REV 1.3, 1.4, 1.5, 1.6 If the Freeze cycle exceeds 45 minutes three times in a row the controller will shut

down the ice maker and provide LED fault indicators.

Rev 1.63 and higher Reworked: Now flashes after 3 consecutive cycles over 35

minutes, but will not shut down the machine. Stops flashing once a cycle is under 35 min.

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>40 Rev 1.1, 1.2, 1.3, 1.4, 1.5 If the Freeze cycle lasts less than 5 minutes 3 times in a row before an

automatic harvest the controller will shut down the ice maker and provide LED fault indicators.

Rev 1.6 and higher After 3 consecutive occurrences of fault 40 the machine will

attempt to remove any blockages by defrosting and cycling water – LED40 will be flashing (5Hz) during this defrost and water cycle-defrost will last for 5 minutes – Water will cycle for 10 minutes –if the machine has 3 more consecutive short freeze cycles, LED 40 will be solid and the machine will shut down.

>50 Rev 1.1, 1.2, 1.3, 1.4, 1.5 If the Harvest cycle exceeds 20 minutes the controller will shut down the ice

maker and provide LED fault indicators.

Rev 1.6 and higher Fault 50 Removed Ice Mode –Added a Max defrost time (5

minutes) –Ice maker will attempt to begin a new cycle after 5 minutes of defrost or when the Evaporator Temp. Probe reaches the set temperature.

>60 Rev 1.1, 1.2 If the Fill cycle exceeds 5 minutes the controller will shut down the ice maker and provide LED

fault indicators.

REV 1.3 and higher Water fill exceeds 3 minutes then the Valve closes & waits 10

minutes, as LED60 Flashes. Valve then opens & tries again. This routine repeats 3X and results in a solid Code 60, if the fill is not completed on the third try.

>70 Rev 1.1, 1.2 If the evaporator temperature during the Fill cycle is less than 31F the controller will energize

the Defrost Valve until the evaporator temperature reaches 41F and provide a temporary LED fault indicator.

REV 1.3 Both Arm-Up/Arm Down (Cam ) Switches Closed (un-actuated ) at the same time

(not allowed ).

>80 Indicates that the machine is in full rinse mode (left jumper pulled)

>90 Indicates bin full, Ice machine will be shut down after current batch is complete.

REV 1.70

ICE MODE and CLEAN MODE: WATER WILL NOW HIT HIGH PROBE, THEN TURN ON

WATER PUMP( WATER VALVE OFF ) AND THEN REFILL TO HIGH PROBE.

CHANGED HIGH AND LOW WATER DEBONUNCE

-0.5 –SECOND DELAY NOW APPLIES WHEN RETURNING TO THE FILL STATE

-ENTIRE FILL ROUTINE WILL NOT BE REPEATED IF RETURNING TO THE FILL STATE

FROM THE HI WATER DEBOUNCE STATE,ONLY REFILLING TO THE HI WATER PROBE

-0.5-SECOND DELAY NOW APPLIES WHEN RETURNING TO THE FREEZE ( ICE MODE ) OR CIRULATE ( CLEAN MODE STATE

REV 1.80

ADDED SECONDARY FILL-ONCE THE FLOAT SWITCH REACHES THE HIGH POINT THE

WATER PUMP(S) WILL START, WATER LEVEL WILL DROP AND THEN REFILL TO THE

HIGH POINT AGAIN.

ADDED A 10 SECOND DELAY, BEFORE PLATE DROPS TO EMPTY EXCESS WATER IN

WATER TANK.

Note:

• The controller will need to be reset to clear these error codes.

• Board Revision numbers are found on the sticker placed on a processor chip in the middle

of the control board. Example: K4B-1.2 indicates a board revision number 1.2

Stacked Jumpers:

• Under normal operation all machines will have a jumper across the left pins. If this jumper is removed the water valve will stay energized to thoroughly rinse the water plate during the water plate lowering, harvest and water plate rising cycles. Note: The machine will need reset for the controller to acknowledge this change.

• The right jumper is used to tell the controller when it is being used on a dual evaporator machine (GB1064 models only). This is set at the factory and should never be removed.

Programming Port: Used by service technicians to alter or up date the controller software.

Water Level Sensor: Port for water level sensor probes or FLOAT.

Evaporator Temperature Adjustment: To increase the temperature of the evaporator at which

the water plate closes, turn this dial counterclockwise. To decrease, turn the dial clockwise. The operator can adjust the harvest termination temperature between 35 and 60F.

Note: After adjustment the controller must be reset.

Reset Button: Reboots the controller.

Temperature Sensor Port: For evaporator and bin temperature sensor probes.

Bin Full Adjustment: To increase the temperature at which the ice level probe reacts to contact

with ice in the bin turn the dial clockwise. To decrease, turn the dial counterclockwise. The temperature range for this adjustment is between 33 and 45F.

Note: After adjustment the controller must be reset.

Switch Input Port: For the on/off, ice/clean and limit switches

Factory Use Only: Used to display diagnostic codes to a LCD monitor used only by service the

factory.

Output: AC output for powering the fan(s), compressor, water pump(s), actuator motor(s), contactor(s), and valves.

ERROR-CODE TROUBLESHOOTING

-Before troubleshooting, first check the Control Board and verify your software Revision Level (Rev. 1.1, 1.2, or 1.3)-

CODE:

FAULT CODE

INDICATES:

POSSIBLE CAUSE:

SOLUTION:

10>

(Rev. 1.1/1.2/1.3)

1. Bad Evaporator Probe (shorted) or wiring.

2. Hot Gas Valve stuck openCuber stuck in extended harvest mode.

3. Bad Control Board.

4. Actuator Motor won’t raise the Water Plate.

1. Repair/replace wiring or replace Probe.

2. Pull down the Water Plate and verify the Hot Gas Valve closes after the Water Plate closes. Repeat, with power to the Hot Gas Valve coil disconnected. If Hot Gas Valve does not close, replace it.

3. Replace Control Board.

4. Replace Actuator Motor. (Motor never raises Plate to actuate Plate Switch, so HGV stays open & Evap temp rises > 120F.

Evaporator temp over 120F.

20>

(Rev. 1.1)

1. Cam Arm or Cam Pin is broken.

2. Cam Spring disengaged or broken.

3. Plate-Up Switch stuck open or not actuating.

4. Over-freeze causing ice to stick to water plate.

5. Silicone coating on Water Plate worn away.

6. During harvest, the Evaporator Probe is out of adjustment (reads too warm) or is defective.

7. Arms-Up Switch stuck closed- Plate stays down.

8. Bin Probe is out of position

1. Replace Cam Arm or Cam Pin.

2. Reinstall springs or replace as needed.

3. Adjust switch actuator or replace as needed. Check to insure that the Plate-Up switch actuates before the Arms-Up switch actuates.

4. Lower the short water level probe, in 1/16” increments, until cubes have a pea-sized dimple in the center.

5. Replace the Water Plate if the factory coating is severely warn and is causing ice to stick to it. Use a Food-Grade Silicone spray to provide a temporary improved surface, until the water plate can be replaced.

6. Adjust Evaporator Probe colder (turn CW), or replace if adjustment does not help.

7. Free up, adjust or replace stuck/shorted Arms-Up Switch, or repair wiring.

8. Re-position or replace Bin Probe.

Water Plate failed to close after three consecutive attempts.

(Rev. 1.2/1.3)

After 3 attempts to close, machine goes into a 30minute shutdown, with the Plate open. It will repeat this routine (w/ the Plate closing 3 times & then a 30-minute wait) four times, before going out on Code 20. The Code 20 LED will flash as this routine is in process, and then light solid after the routine tries 4 times and ends Code 20.

CODE:

FAULT CODE

POSSIBLE CAUSE:

SOLUTION:

INDICATES:

30>

(Rev 1.1/1.2)

1. Not enough air or liquid flow through condenser.

2. Low-level (harvest) probe shorted or touching side of glass tube.

3. Inoperative water pump.

4. Refrigeration problem.

5. Bad Contactor (Compressor would be off!)

6. Inlet Water Valve stuck open. Water Tank will be overflowing.

7. Controller not shutting off Water Valve.

8. Hot Gas Valve (HGV) stuck partially open, or with a liquid-cooled compressor, HGV stuck fully open, but Evaporator never gets hot enough (>120F) to give an Error Code 10.

1. Reset high-pressure safety, if tripped. Clean the condenser, on aircooled units. Check water/coolant supply, on liquid-cooled units.

2. Check/repair shorted wiring to this probe, or gently move probe away from glass surface. Make sure probe is not pushed up/down out of vertical adjustment when moving it away from glass.

3. Unplug the pump and confirm the impeller is not jammed with foreign material. Put machine in Wash Mode & check voltage at pump-cable connector. On the Controller Board’s AC output bus, check wires P5-2 and P5-6, during Wash Mode, for line voltage. If rated line voltage is present, and the pump’s impeller is not obstructed, replace faulty Water Pump.

4. Check for low refrigerant charge.

5. Replace Contactor.

6. Replace Water Valve.

7. Replace Controller.

8. Replace Hot Gas Valve.

Freeze time exceeds 60 min.

(Rev 1.3)

Freeze time exceeds 45 min.

three times consecutively.

40>

(Rev 1.1/1.2/1.3)

1. Slushing, in Pump, water lines or Water Tank, due to Expansion Valve misadjustment or not being wrapped in insulating foam, or failure.

2. Low-level Probe circuit is open, or the Water-level Probe Assembly is bad.

3. Water is being lost somewhere (leaking), causing premature harvest to occur.

4. During harvest, Evaporator Probe out of adjustment (too Warm).

5. High-level Probe possibly short circuiting during fill, causing short fill and hollow cubes.

1. Ensure Expansion Valve (TXV) is covered with insulating foam, Adjust TXV as needed. As a starting point, gently turn the TXV in CW direction until it stops, then turn it CCW 5-1/2 turns. Adjust in ¼ turn increments as needed.

2. Repair wiring to Low-level Probe or replace Probe assembly.

3. Inspect hoses, water tank, water pumps, water plate and water level probe assembly to locate leak, repair or replace bad part as needed.

4. Adjust colder (CW).

5. Locate & repair short circuit.

Freeze time less than 5 min., for 3 consecutive times. (Water level in the glass Probe Tube is prematurely falling below the low-level probe, during the first 5 minutes of the freeze cycle, or, the Low-level probe circuit is open.)

CODE:

FAULT CODE

POSSIBLE CAUSE:

SOLUTION:

INDICATES:

50>

(Rev 1.1/1.2/1.3)

1. Evaporator Temperature Probe out of adjustment (reads too warm), or is defective (open).

2. Actuator Motor won’t raise Water Plate.

3. Actuator Motor won’t lower Water Plate.

4. Controller is defective.

5. Arms-down Switch is stuck open (Lowering) Cam rotates CCW & wraps spring around cam shaft, causing Cam or Spring damage.

6. Arms-Down Switch stuck closed (plate supposed to lower, but is staying up.)

7. Hot Gas Valve won’t open.

8. During harvest, Evaporator Probe out of adjustment (reads too cool) or defective. (Ice production may be low!)

9. Bad Contactor (Compressor would be off!)

1. On the Controller, adjust Evaporator Probe pot CW, to a colder setting, so that the Water Plate returns to the closed position about 5 sec. after ice releases. If Evaporator Probe is nonresponsive, and Actuator motor is confirmed operational, then replace the Evaporator Probe.

2. Replace Actuator Motor – (motor should drive up when Water Plate is down & Evaporator Probe is > 38F. (35-45F)).

3. Replace Actuator Motor

4. Replace Control Board (When Water Plate is down & Evap Probe is > 38F, there should be line voltage to the Actuator Motor, between pins 2 & 8*, on the green output connector of the Controller. If voltage not present, replace the Controller.

5. Free up, adjust or replace Arms-Down Switch or repair open wiring.

6. Free up, adjust or replace Arms-Down Switch or repair shorted wiring.

7. Check power from the controller to the Valve Coil, to determine if problem is electrical or the Valve is just stuck closed. Replace Coil, Controller, wiring or Valve, as required.

8. Adjust Evaporator Probe warmer, or replace if not responding.

9. Replace Contactor.

(*Check pins 2 & 10, for upper Actuator Motor, on dual-Evaporator machine).

Harvest cycle exceeds 20 min.

CODE:

FAULT CODE

POSSIBLE CAUSE:

SOLUTION:

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Kold-Draft GB1064L Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual