Kold-Draft GT36 Series Manual

- -
Installation, Operation, Technical
Service and Replacement Parts Manual
Ice Cube Makers - GT36x, GT56x, GB56x, GB106x
Stacking Instructions - Multiple GB56x or GB106x
Ice Cube Crushers - T27x
Pre-charged Remote Air-Cooled Condenser - RC214APV
GT36x GT56x GB56x GB106x
KDIndustries, Inc.
1525 East Lake Road
Erie, PA 16511-1088 U.S.A.
[phone]
FAX: [phone]
www.kold-draft.com
November 2016
This manual is updated periodically. Visit http://www.kold-draft.com/resources/literature.php for the latest version.

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
T27x,T28x
Pre-charged Remote Air-Cooled Condenser
RC214APV (For GB106xR)
Copyright 2015 KOLD DRAFT INTERNATIONAL
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.
November 2016

Table of Contents
SAFETY INFORMATION ................................................................................................................. 4
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 .......................................................................................... 18
Controller .................................................................................................................................... 19
ERROR-CODE TROUBLESHOOTING .......................................................................................... 22
SEQUENCE OF OPERATION ....................................................................................................... 26
Ice Making Sequence ................................................................................................................. 26
Ice Bin Full/Cleaning Mode ......................................................................................................... 27
Description of Each Process ....................................................................................................... 27
Fill ............................................................................................................................................ 27
Freeze ..................................................................................................................................... 27
Lower ...................................................................................................................................... 28
Harvest .................................................................................................................................... 28
Raise ....................................................................................................................................... 28
Ice Bin Full .............................................................................................................................. 28
Cleaning Mode ........................................................................................................................ 28
Water Plate Closure Problems ................................................................................................ 28
Shutdown-High Pressure ........................................................................................................ 28
START METHODS ......................................................................................................................... 29
Ice Making Mode Start Up .......................................................................................................... 29
Cleaning Mode Start Up ............................................................................................................. 29
GT36X, GT56X, GB56X WIRING DIAGRAM ................................................................................. 30
GB1064 A & L WIRING DIAGRAM ................................................................................................ 31
GB106XR WIRING DIAGRAM ....................................................................................................... 32

COMPRESSOR TEST PROCEDURE ........................................................................................... 33
Test Procedure for a Short Circuit to Ground (Ground Fault) ..................................................... 34
Test Procedure for Continuity And Proper Resistance ............................................................... 34
Test Procedure for Compressor Electrical Components ............................................................ 35
Testing The Run Capacitor: ........................................................................................................ 35
Testing The Start Capacitor: ....................................................................................................... 35
Additional Service Information .................................................................................................... 36
WATER PLATE REPLACEMENT .................................................................................................. 36
WATER PLATE ALIGNMENT ........................................................................................................ 38
WATER PLATE UP/DOWN POSITION AND ADJUSTMENT ........................................................ 38
ACTUATOR MOTOR KIT APPLICATION LIST ............................................................................. 40
PROBE TEST PROCEDURE ......................................................................................................... 41
INSTRUCTIONS FOR GB1064 WATER FILL ADJUSTMENT ...................................................... 42
TROUBLESHOOTING ................................................................................................................... 44
PARTS DIAGRAMS ....................................................................................................................... 49
GT36x Parts ................................................................................................................................ 50
GT56x Parts ................................................................................................................................ 51
GB56x Parts ............................................................................................................................... 53
GB106x Parts ............................................................................................................................. 54
PARTS LIST ................................................................................................................................... 58
ACTUATOR MOTOR KIT APPLICATION LIST ............................................................................. 61
STACKING INSTRUCTIONS ......................................................................................................... 62
ICE CUBE CRUSHERS - T27X...................................................................................................... 65
ICE CRUSHER SAFETY INFORMATION ...................................................................................... 66
ICE CRUSHER INSTALLATION .................................................................................................... 67
Pre-Install Checklist .................................................................................................................... 68
Assembly/Installation .................................................................................................................. 69
Initial Start-Up ............................................................................................................................. 73
ICE CRUSHER OPERATION ......................................................................................................... 73
ICE CRUSHER CLEANING PROCEDURE ................................................................................... 73
ADJUSTMENT AND LUBRICATION .............................................................................................. 73
WIRING DIAGRAM ........................................................................................................................ 74
PRE-CHARGED REMOTE AIR COOLED CONDENSER ............................................................. 75
PRE-CHARGED REMOTE AIR COOLED INSTALLATION ........................................................... 76
Pre-Install checklist ..................................................................................................................... 76
Installation ................................................................................................................................... 78
Specifications .............................................................................................................................. 78
Minimum Total Charge Required ................................................................................................ 78
Electrical Information .................................................................................................................. 80
Removing From Service ................................................................................................................. 80

new 60 Series Service Manual.rev. 06.01.16.docx - 1 –
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.

2
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

new 60 Series Service Manual.rev. 06.01.16.docx - 3 –
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
C
HK
A
L
R
1
4
5
7
8220-380 Volt 50 Hz 3 phase plus neutral (4 wires + ground)
6
3
5
10
GB
GT
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
500 Series
1000 Series
42" Wide
30" Wide
Cabinet Width
115 Volt 60 Hz 1 ph (2 wires + ground)
208-230 Volt 60 Hz 1 ph (2 wires + ground)
Electrical Characteristics
Full Cube
Half Cube
Condenser Type
Air Cooled Condenser, Self Contained
Liquid Cooled Condenser, Self Contained
Remote Air Cooled Condenser
Cube Size
GB
5
6
1
A
HK

4
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

new 60 Series Service Manual.rev. 06.01.16.docx - 5 –
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
38
97
29
74
17
43
GT56xA &
GT56xL
38
97
29
74
32
81
GB56xA
54
137
38
97
17
43
GB56xL
54
137
29
74
17
43
GB106xA
54
137
38
97
40
102
GB106xL
54
137
29
74
40
102
GB106xRC
54
137
33
84
40
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 recirculate 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.

6
• 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
(V)
Full-Load Minimum
(V)
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

new 60 Series Service Manual.rev. 06.01.16.docx - 7 –
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.

8
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 gasketing 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.

new 60 Series Service Manual.rev. 06.01.16.docx - 9 –
7. Make all plumbing and electrical connections to the ice machine and ice storage bin in
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:
GB Models
GT Models

10
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.

new 60 Series Service Manual.rev. 06.01.16.docx - 11 –
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.

12
SPECIFICATIONS
Machine Capacities
Lb (Kg) per 24hr Lb (Kg) per 24hr
90/70 Ambient/Water 70/50 Ambient/Water
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 Ratings
Cubes per cycle
Model Number
kWh/100# (kJ/kg)
kWh/100#
(kJ/kg)
Potable
Condenser

new 60 Series Service Manual.rev. 06.01.16.docx - 13 –
Electrical Use and Machine Dimensions/Weight
Amps Amps Ship Weight
GT361AC 12 15 130.1 (76.5) 25.7 (65.3) 16.9 (42.9) 180 (82)
GT361AHK 12 15 130.1 (76.5) 25.7 (65.3) 16.9 (42.9) 180 (82)
GT361LC 11.1 15 230.1 (76.5) 25.7 (65.3) 16.9 (42.9) 174 (79)
GT361LHK 11.1 15 230.1 (76.5) 25.7 (65.3) 16.9 (42.9) 174 (79)
GT364AC 6.5 15 230.1 (76.5) 25.7 (65.3) 16.9 (42.9) 180 (82)
GT364AHK 6.5 15 230.1 (76.5) 25.7 (65.3) 16.9 (42.9) 180 (82)
GT364LC 615 130.1 (76.5) 25.7 (65.3) 16.9 (42.9) 174 (79)
GT364LHK 615 230.1 (76.5) 25.7 (65.3) 16.9 (42.9) 174 (79)
GT561AC 18.6 30 130.1 (76.5) 25.7 (65.3) 30.7 (78) 228 (103)
GT561AHK 18.6 30 130.1 (76.5) 25.7 (65.3) 30.7 (78) 228 (103)
GT561LC 17.7 30 130.1 (76.5) 25.7 (65.3) 30.7 (78) 218 (99)
GT561LHK 17.7 30 130.1 (76.5) 25.7 (65.3) 30.7 (78) 218 (99)
GT564AC 9.5 15 130.1 (76.5) 25.7 (65.3) 30.7 (78) 228 (103)
GT564AHK 9.5 15 130.1 (76.5) 25.7 (65.3) 30.7 (78) 228 (103)
GT564LC 9.1 15 130.1 (76.5) 25.7 (65.3) 30.7 (78) 218 (99)
GT564LHK 9.1 15 130.1 (76.5) 25.7 (65.3) 30.7 (78) 218 (99)
GB561AC 18.6 30 142.3 (107.4) 31.1 (79) 17 (43.2) 207 (94)
GB561AHK 18.6 30 142.3 (107.4) 31.1 (79) 17 (43.2) 207 (94)
GB561LC 17.7 30 142.3 (107.4) 25.63 (65.1) 17 (43.2) 185 (84)
GB561LHK 17.7 30 142.3 (107.4) 25.63 (65.1) 17 (43.2) 185 (84)
GB564AC 9.5 15 142.3 (107.4) 31.1 (79) 17 (43.2) 207 (94)
GB564AHK 9.5 15 142.3 (107.4) 31.1 (79) 17 (43.2) 207 (94)
GB564LC 9.1 15 142.3 (107.4) 25.63 (65.1) 17 (43.2) 185 (84)
GB564LHK 9.1 15 142.3 (107.4) 25.63 (65.1) 17 (43.2) 185 (84)
GB1064AC 16.3 25 142.3 (107.4) 31.1 (79) 33.7 (85.6) 348 (158)
GB1064AHK 16.3 25 142.3 (107.4) 25.7 (65.3) 33.7 (85.6) 312 (142)
GB1064LC 15.4 25 142.3 (107.4) 25.7 (65.3) 33.7 (85.6) 312 (142)
GB1064LHK 15.4 25 142.3 (107.4) 25.7 (65.3) 33.7 (85.6) 312 (142)
GB1064RC &
RC214APV
18.1 30 142.3 (107.4) 25.7 (65.3) 33.7 (85.6) 335 (152)
GB1064RHK
& RC214APV
18.1 30 142.3 (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
W
D
H
Ship Weight #(kg)
RC214APV
Dimensions - inches (cm)
Model Number

14
Water Fill Levels, Cycle Times and Harvest Weights
Model Group and Cube Type
GB56x
GB106x
C
HK
C
HK
Water Fill Level inches (mm) *
2.75 (70)
2.75 (70)
2.75 (70)
2.75 (70)
Approximate Cycle Time (Minutes)
31
24
31
24
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

new 60 Series Service Manual.rev. 06.01.16.docx - 15 –
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 26.

16
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 relay outputs and indirectly to the compressor
and condenser fan motor, if so equipped, by operation of a 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.