CLASSIC
K O L D-D R A F T
GB Ice Maker Models
Installation and Operation Instructions
CHECK FOR FREIGHT DAMAGE BEFORE PROCEEDING: Even though damage to
the carton may not be evident, check for hidden damage and if found contact the freight
carrier immediately to file a claim.
THIS EQUIPMENT MUST BE INSTALLED IN COMPLIANCE WITH ALL APPLICABLE
FEDERAL, STATE/PROVINCE, AND/OR LOCAL PLUMBING, ELECTRICAL, AND
HEALTH/SANITATION CODES AND REQUIREMENTS.
Failure to understand and follow these
instructions could lead to the following
Risks and Damage
CAUTION:
{ RISK OF PERSONAL INJURY, PROPERTY DAMAGE, EQUIPMENT
FAILURE, OR FIRE.
{ Refer all maintenance to qualified personnel.
{ Never operate this equipment with covers, panels, or other parts removed
or not properly secured.
{ Warn all users to clean up all spills immediately, keep storage bin doors
closed, and report any leaks or unusual sounds to responsible
maintenance personnel.
{ Use suitable lifting techniques and watch for sharp edges.
{ Failure to follow all installation specifications and instructions may
cause: improper operation and equipment damage or fire.
1525 East Lake Road, Erie, PA 16511-1088
www.kold-draft.com
Phone 814-453-6761
Fax 814-455-6336
©2005 KDIndustries, Inc., Erie, PA U.S.A.
508107001 Rev.02/05
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Installation Specifications
Ampacity: Minimum ampacity does not indicate typical running current value. Refer to equipment
NAME PLATE data. Use minimum ampacity value for sizing branch circuit conductors up to 25
feet length. For conductor length over 25 feet up to 100 feet, increase 1 AWG size. Over 100
feet requires 2 or more AWG size increase.
Branch circuit protection: Proper protection must be provided by either fuse(s) or HACR type
circuit breaker(s). Each ice maker must be provided with a separately protected circuit with no
other load(s). A fused disconnect installed adjacent to each ice maker is recommended. and
may be required by local codes. NORMAL protector size is based on rated voltage and operation
at lower than extreme temperature limits. When branch circuit conductors are sized to permit
increasing the protector size (up to the specified maximum) may avoid nuisance protector opening
under harsh operating conditions.
Water Supply: Minimum 20 psig supply pressure while the ice maker is filling is required. Maximum
supply pressure is 100 psig. The water fill flow rate is 1 GPM for each GB4XX or GB6XX
machine. Backflow prevention is provided by an internal air gap (accepted by NSF). If additional
protection is required by local codes or authorities, any device(s) and installation of the same,
including specification and cost, are the responsibility of the installation specifier.
Ice maker drain: The size of the gravity drain for the ice maker rinse and purge water must not
be reduced. Individual drains from stacked ice makers may be discharged into a standpipe or
manifold with a minimum 1-1/2 inch air gap at each ice maker connection.
Liquid condenser coolant pressure drop: Condenser coolant pressure drop may reach 20 psig
during peak load with 85OF. coolant temperature at recommended refrigerant high-side pressure.
The condenser coolant (water) regulating valve may require adjustment due to variations in the
coolant supply characteristics to provide optimum efficiency.
All models are intended FOR INDOOR USE ONLY with PERMANENT CONNECTION TO THE
FIELD ELECTRICAL SUPPLY. Remote air cooled condensers supplied by KOLD-DRAFT may
be installed outdoors, and they require a separate electrical supply.
Other operating condition requirements:
Ice maker ambient air temperature: MINIMUM 45°F*.; MAXIMUM 90°F.
Remote condenser ambient air temperature: CONSULT SERVICE MANUAL
*Ice maker ambient temperatures less than 50°F may cause erratic bin thermostat operation.
Potable water and condenser liquid supply:
Temperature: MINIMUM 45°F*.; MAXIMUM 90°F.
Pressure: MINIMUM 20 psig; MAXIMUM 100 psig**
*Potable water temperatures less than 50°F are likely to cause cold-water thermostat operation
(see SERVICE MANUAL).
**If regulator is used, recommended setting is 30 to 50 psig.
508107001 Rev.02/05
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INSTALLATION
NOTE: For Stacked installations, refer to the instructions for stacking before proceeding.
Location:
1. Position the ice storage bin with the following minimum clearances around the
ice maker for ventilation and utility connections:
GB Ice Makers GB1250A Ice Maker
Except GB1250A
REAR: 6 inches 10 inches (measured from the side opposite of the condenser)
RIGHT: 8 inches 6 inches
LEFT: 4 inches 6 inches
TOP: 6 inches 2 inches
Level Equipment:
2. Level the bin with adjusters on legs, or by shimming if the bin is to be sealed to the floor. If
gaps due to shims are greater than 1/8 inch, install a cove molding around the bin
bottom. Seal the bin or molding to the floor with NSF Certified RTV sealant (Dow-Corning
RTV 732 or equal).
Cabinet Panel, Ice Deflector, Ice Chute, and Drain Pan Removal:
3. Remove the cuber cabinet panels as follows:
TOP: Lift the front edge and pull forward until the rear clip is disengaged
from the chassis.
FRONT: Remove the (4) screws at the bottom and front-sides, pull forward.
SIDES : Pull forward and lift to disengage the clips from the chassis.
4. Remove the ice deflector, ice chute and drain pan. Peel off the protective film from the
ice maker and the bin exterior panels.
Gasket the Bin Top:
5. Install gasketing on top of the bin. Gasket material must be positioned so that it extends
to all the outside edges of the ice maker chassis.
Position the Ice Maker on the Bin Top:
6. CAREFULLY place the ice maker onto the bin, note the alignment of the mounting holes in
the ice maker if mounting means (holes) are provided on the bin. 1/4”-20 capscrews are
provided for securing the ice maker to the bin. Consult the bin installation instructions for
additional information.
Install Ice Deflector, Ice Chute and Drain Pan:
7. Install the ice deflector, drain pan, and ice chute. Install the drain tube assembly through
the rear of the bin, and clamp the tubing to the drain pan nipple.
NOTE:
To avoid the RISK OF CONTAMINATION OF ICE IN THE BIN,
provide separate, unconnected, drains for the ice maker and the bin.
508107001 Rev.02/05
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