Manitowoc EC Serie Instructions Manual

Installation Use and Care Manual
EC Series
Ice Machines
Part Number 80-1652-3
Table of Contents
Table of Contents
Section 1 - General Information
Model Numbers................................................................................................................................................1-1
Model/Serial Number Location......................................................................................................................1-1
Section 2 - Installation Instructions
Ice Machine Dimensions..................................................................................................................................2-1
Location of Ice Machine..................................................................................................................................2-2
Ice Machine Heat of Rejection........................................................................................................................2-2
Leveling the Ice Machine.................................................................................................................................2-3
Electrical Service..............................................................................................................................................2-4
Water Service/Drains.......................................................................................................................................2-5
Installation Checklist.......................................................................................................................................2-7
Before Starting the Ice Machine.....................................................................................................................2-7
Section 3 - Ice Machine Operation
Component Identification ...............................................................................................................................3-1
Ice Making Sequence of Operation ...............................................................................................................3-2
Energized Parts Chart.....................................................................................................................................3-3
Operational Checks
General.......................................................................................................................................................3-4
Siphon System ........................................................................................................................................... 3-4
Water Level ............................................................................................................................................... 3-5
Ice Bridge Thickness................................................................................................................................. 3-5
i
Table of Contents
Table of Contents (cont.)
Section 4 - Maintenance
General..............................................................................................................................................................4-1
Ice Machine Inspection....................................................................................................................................4-1
Exterior Cleaning.............................................................................................................................................4-1
Cleaning the Condenser ..................................................................................................................................4-1
Interior Cleaning and Sanitizing....................................................................................................................4-3
Removal of Parts for Cleaning/Sanitizing.....................................................................................................4-5
Removal from Service/Winterization.............................................................................................................4-10
ii
Section 1 General Information
r
p
Section 1
General Information
It is recommended that this ice machine be inspected and installed by a qualified service technician.
Model Numbers
This manual covers the following models:
Self-Contained
Air-Cooled
ECV100AB ECV100AL
Follow all recommendations and instructions for proper installation and safe operation of this ice machine.
If you do not understand the procedures or the safety precautions that must be followed, call you local service representative to perform the necessary installation
rocedures for you.
WARNING
Model/Serial Number Location
WARNING
PERSONAL INJURY POTENTIAL
Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.
ECV model ice machines do not have a water curtain covering the evaporator. The ice damper performs the functions of the water curtain see Section 4 for details.
MODEL/SERIAL
NUMBER PLATE
MODEL/SERIAL
NUMBER PLATE
Model/Serial Number Location
Ice Machine
Model Number
Serial Number
1-1
General Information Section 1
THIS PAGE INTENTIONALLY LEFT BLANK
1-2
Section 2 Installation Instructions
Section 2
Installation Instructions
Ice Machine Dimensions
ECV ICE MACHINES
26.00" 66CM
19.00"
48.2CM
26.50"
67.3CM
SV1688
2.12"
15.25"
38.7CM
12.28"
31.2CM
10.25"
3.27"
8.3CM
ICE MAKING
WATER/BIN DRAIN
ICE MAKING
WATER INLET
32.50"
82.5CM
6.00
15.2CM
ELECTRICAL INLET
CONDENSER WATER
OUTLET
CONDENSER WATER
INLET
SV1688B
2-1
Installation Instructions Section 2
Location of Ice Machine
Ice Machine Heat of Rejection
The location selected for the ice machine must meet the following criteria. If any of these criteria are not met, select another location.
The location must be indoors.
The location must be free of airborne and other
contaminants.
The air temperature must be at least 1.7°C, but must not exceed 43.4°C.
The location must not be near heat-generating equipment or in direct sunlight.
The location must be capable of supporting the weight of the ice machine and a full bin of ice.
The location must allow enough clearance for water, drain and electrical connections in the rear of the ice machine.
The location must not obstruct airflow through or around the ice machine (condenser airflow is in and out the front). Refer to the chart below for clearance requirements.
Series Heat of Rejection*
Ice Machine Air Conditioning** Peak
ECV100 2400 3400
* B.T.U./Hour ** Because the heat of rejection varies during the ice making
cycle, the figure shown is an average.
Ice machines, like other refrigeration equipment, reject heat through the condenser. It is helpful to know the amount of heat rejected by the ice machine when sizing air conditioning equipment where self­contained air-cooled ice machines are installed.
Self-Contained
Air-Cooled
Top/Sides 203 mm* 127 mm*
Back 127 mm* 127 mm*
*
NOTE: The ice machine may be built into a cabinet.
Self-Contained
Water-Cooled
There is no minimum clearance requirement for the top or left and right sides of the ice machine.
The
listed values are recommended for efficient operation and servicing only.
CAUTION
The ice machine must be protected if it will be subjected to temperatures below 0°C. Failure caused by exposure to freezing temperatures is not covered by the warranty. See “Removal from Service/Winterization” on page 4-11.
2-2
Section 2 Installation Instructions
Leveling the Ice Machine
1. Screw the leveling legs onto the bottom of the ice machine.
2. Screw the foot of each leg in as far as possible.
CAUTION
The legs must be screwed in tightly to prevent them from bending.
3. Move the ice machine into its final position.
4. Level the ice machine to assure that the siphon system functions correctly. Use a level on top of the ice machine. Turn each foot as necessary to level the ice machine from front to back and side to side.
THREAD LEVELING LEG INTO BASE OF
CABINET
THREAD “FOOT”
IN AS FAR AS
POSSIBLE
Checking Ice Machine Level
SV1606
2-3
Installation Instructions Section 2
Electrical Service
GENERAL
WARNING
All wiring must conform to local, state and national codes.
VOLTAGE
The maximum allowable voltage variation is ± 10% of the rated voltage on the ice machine model/serial number plate at start-up (when the electrical load is highest).
The ice machines are factory pre-wired with a 6’ power cord only, no plug is supplied.
WARNING
The ice machine must be grounded in accordance with national and local electrical codes.
FUSE/CIRCUIT BREAKER
A separate fuse/circuit breaker must be provided for each ice machine. An electrical disconnect switch must be provided if the ice machine is hard wired (wired without a plug).
TOTAL CIRCUIT AMPACITY
The total circuit ampacity is used to help select the wire size of the electrical supply.
The wire size (or gauge) is also dependent upon location, materials used, length of run, etc., so it must be determined by a qualified electrician.
ECV ICE MACHINES
Voltage Air-Cooled Water Cooled
Ice Machine Phase
Cycle
ECV100 230/1/50 15 4 15 4
Maximum
Fuse/Circuit
Breaker
Total Amps Maximum
Fuse/Circuit
Breaker
Total Amps
For United Kingdom Only
As the colours of the wires in the mains lead of the appliance may not correspond with the coloured markings identifying the terminals in your plug, proceed as follows:
The wire which is coloured green and yellow must be connected to the terminal in the plug which is marked with the letter E or by the earth ground symbol
green or green and yellow.
The wire coloured
blue must be connected to the terminal which is marked with the
letter N or coloured black.
The wire coloured brown must be connected to the terminal which is marked with the letter L or coloured red.
or coloured
2-4
Section 2 Installation Instructions
Water Service/Drains
WATER SUPPLY
Local water conditions may require treatment of the water to inhibit scale formation, filter sediment, remove chlorine, and improve taste and clarity.
DRAIN CONNECTIONS
Follow these guidelines when installing drain lines to prevent drain water from flowing back into the ice machine and storage bin:
WATER INLET LINES
Follow these guidelines to install water inlet lines:
Do not connect the ice machine to a hot water supply. Be sure all hot water restrictors installed for other equipment are working. (Check valves on sink faucets, dishwashers, etc.)
If water pressure exceeds the maximum
551.5 kPA recommended pressure, obtain a water pressure regulator.
Install a water shut-off valve and union for both the ice making and condenser water lines.
Insulate water inlet lines to prevent condensation.
Drain lines must have a 2.5 cm drop per meter and must not create traps.
The floor drain must be large enough to accommodate drainage from all drains.
Run separate bin and water-cooled condenser drain lines. Insulate them to prevent condensation.
Vent the bin drain to the atmosphere.
2-5
Installation Instructions Section 2
V
WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS
CAUTION
Plumbing must conform to state and local codes.
Location
Ice Making
Water Inlet Condenser
Water Inlet
Condenser
Water Drain
Bin Drain
Water
Temperature
0.6°C Min.
32.2°C Max.
0.6°C Min.
32.2°C Max.
--- ---
--- ---
Water
Pressure
137.9 kPA Min.
551.5 kPA Max.
137.9 kPA Min.
1034.2 kPA Max.
Ice Machine
Fitting
3/8” Female Pipe
Thread
1/2” Female Pipe
Thread
1/2” Female Pipe
Thread
1/2” Female Pipe
Thread
Tubing Size Up to Ice
Machine Fitting
9.5 mm
minimum inside
diameter
12.7 mm
minimum inside
diameter
12.7 mm
minimum inside
diameter
1/2” (12.7 mm)
minimum inside
diameter
Typical Water Supply Drain Installation
ENT TUBING
20CM LONG
CONDENSER WATER
INLET TUBING
1.27 CM MIN. I.D.
2-6
SV1691
BIN DRAIN
CONDENSER WATER
DRAIN TUBING
1.27 CM MIN. I.D.
WATER SHUTOFF
VALVE
ICE MAKING WATER
INLET TUBING
.95 CM MIN. I.D.
Section 2 Installation Instructions
Installation Checklist
Before Starting the Ice Machine
Is the ice machine level? Has all of the internal packing been removed? Have all of the electrical and water connections
been made? Has the supply voltage been tested and checked
against the rating on the nameplate? Is there proper clearance around the ice
machine for air circulation? Has the ice machine been installed where
ambient temperatures will remain in the range of 1.7° - 43.3°C?
Has the ice machine been installed where the incoming water temperature will remain in the range of 0.6° - 32.2°C?
Are all electrical leads free from contact with refrigeration lines and moving equipment?
Has the owner/operator been instructed regarding maintenance and the use of Cleaner and Sanitizer?
All ice machines are factory-operated and adjusted before shipment. Normally, new installations do not require any adjustment.
To ensure proper operation, follow the Operational Checks in this manual. Starting the ice machine and completing the Operational Checks are the responsibilities of the owner/operator.
Adjustments and maintenance procedures outlined in this manual are not covered by the warranty.
WARNING
PERSONAL INJURY POTENTIAL
Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.
Has the ice machine and bin been sanitized? Has this manual been given to the
owner/operator? Is the float valve in the OPEN position?
2-7
Installation Instructions Section 2
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2-8
Section 3 Ice Machine Operation
Ice Machine Operation
Component Identification
DISTRIBUTION TUBE
(Q210/Q270 SHOWN)
SV1695G
ICE THICKNESS PROBE
FLOAT VALVE
SIPHON CAP
BIN SWITCH
WATER TROUGH
ICE DAMPER
WATER PUMP
SV1695A
CONDENSER AIR FILTER
SV1686G
ON/OFF/WASH
TOGGLE SWITCH
COMPRESSOR COMPARTMENT
ACCESS SCREWS
3-1
Ice Machine Operation Section 3
Ice Making Sequence of Operation
INITIAL START-UP OR START-UP AFTER AUTOMATIC SHUT-OFF
1. Pressure Equalization
Before the compressor starts the hot gas valve is energized for 15 seconds to equalize pressures during the initial refrigeration system start-up.
2. Refrigeration System Start-Up
The compressor starts after the 15-second pressure equalization, and remains on throughout the entire Freeze and Harvest Sequences. The hot gas valve remains on for 5 seconds during initial compressor start-up and then shuts off.
At the same time the compressor starts, the condenser fan motor (air-cooled models) is supplied with power throughout the entire Freeze and Harvest Sequences. The fan motor is wired through a fan cycle pressure control, therefore it may cycle on and off. (The compressor and condenser fan motor are wired through the relay. As a result, any time the relay coil is energized, the compressor and fan motor are supplied with power.)
FREEZE SEQUENCE
3. Prechill
The compressor is on for 30 seconds prior to water flow to Prechill the evaporator.
4. Freeze
The water pump starts after the 30-second Prechill. An even flow of water is directed across the evaporator and into each cube cell, where it freezes.
HARVEST SEQUENCE
5. Harvest
The water pump de-energizes stopping flow over the evaporator. The rising level of water in the sump trough diverts water out of the overflow tube, purging excess minerals from the sump trough. The hot gas valve also opens to divert hot refrigerant gas into the evaporator.
The refrigerant gas warms the evaporator causing the cubes to slide, as a sheet, off the evaporator and into the storage bin. The sliding sheet of cubes contacts the ice damper, opening the bin switch. The momentary opening and re-closing of the bin switch terminates the Harvest Sequence and returns the ice machine to the Freeze Sequence (steps 3 - 4).
AUTOMATIC SHUT-OFF
6. Automatic Shut-Off
When the storage bin is full at the end of a Harvest Sequence, the sheet of cubes fails to clear the ice damper and will hold it down. After the ice damper is held open for 7 seconds, the ice machine shuts off. The ice machine remains off for 3 minutes before it can automatically restart.
The ice machine remains off until enough ice has been removed from the storage bin to allow the ice to fall clear of the damper. As the ice damper swings back to the operating position, the bin switch re­closes and the ice machine restarts (steps 1 - 2), provided the 3-minute delay period is complete.
When sufficient ice has formed, the water flow (not the ice) contacts the ice thickness probe. After approximately 7 seconds of continual water contact, the Harvest Sequence is initiated. The ice machine cannot initiate a Harvest Sequence until a 6-minute freeze time has been surpassed.
3-2
Section 3 Ice Machine Operation
ECV SELF-CONTAINED ICE MACHINES
ENERGIZED PARTS CHART
ICE MAKING SEQUENCE OF OPERATION
1 2 3 3A 3B
INITIAL START-UP/ START UP AFTER AUTO SHUT-OFF:
1. Pressure
Equalization
2. Refrigeration System Start-up
FREEZE SEQUENCE:
3. Pre-Chill
4. Freeze
HARVEST SEQUENCE:
5. Harvest
CONTROL BOARD RELAYS RELAY
WATER PUMP HOT GAS VALVE RELAY COIL
OFF
OFF
OFF
ON
OFF
ON
ON
OFF
OFF
ON
OFF
ON
ON
ON
ON
LENGTH
COMPRESSOR
OFF
ON
ON
ON
ON
CONDENSER
FAN MOTOR
OFF
ON
ON
ON
ON
of “ON”
TIME
15
Seconds
5
Seconds
30
Seconds
Until 7 sec.
water contact
with ice
thickness
probe
Bin switch
activation
AUTOMATIC SHUT-OFF:
6. Auto Shut-Off
OFF
OFF
OFF
OFF
OFF
Until
bin switch
re-closes
Condenser Fan Motor: The fan motor is wired through a fan cycle pressure control, therefore, it may cycle on and off.
3-3
Ice Machine Operation Section 3
Operational Checks
GENERAL
Your ice machine was factory-operated and adjusted before shipment. Normally, a newly installed ice machine does not require any adjustment.
To ensure proper operation, always follow these Operational Checks when starting the ice machine:
for the first time
after a prolonged out of service period
after cleaning and sanitizing
Routine adjustments and maintenance procedures outlined in this manual are not covered by the warranty.
SIPHON SYSTEM
To reduce mineral build-up and cleaning frequency, the water in the sump trough must be purged during each harvest cycle. When the water pump de-energizes the level in the water trough rises above the standpipe starting a siphon action. The siphon action stops when the water level in the sump trough drops. When the siphon action stops, the float valve refills the water trough to the correct level.
WATER FLOAT VALVE CHECK
Before water will flow into the water trough the float valve shut-off must be in the OPEN position.
PRESS TO
OPEN
PRESS TO
CLOSE
Siphon System Check
Follow steps 1 through 6 under water level check.
WATER LEVEL
SIPHON
CAP
STANDPIPE
DRAIN
SV1689-2
3-4
Section 3 Ice Machine Operation
A
WATER LEVEL CHECK
Check the water level while the ice machine is in the ice mode and the water pump is running. The correct water level is 6.3mm to 9.5mm below the top of the standpipe a line in the water trough indicates the correct level.
SET THE WATER LEVEL TO THE LINE
IN THE WATER TROUGH
SIPHON CAP
ICE BRIDGE THICKNESS CHECK
The ice thickness probe is factory-set to maintain the ice bridge thickness at 3.2 mm.
1. Inspect the bridge connecting the cubes. It should be about 3.2 mm thick.
2. If adjustment is necessary, turn the ice thickness probe adjustment screw clockwise to increase bridge thickness, or counterclockwise to decrease bridge thickness.
SV1689-2
Water Level
The float valve is factory-set for the proper water level. If adjustments are necessary:
1. Verify the ice machine is level.
2. Remove the siphon cap from the standpipe.
3. Place the main ON/OFF/WASH toggle switch to the ON position, and wait until the float valve stops adding water.
4. Adjust the water level to (6.3 to 9.5 mm below the standpipe) the line in the water trough: A Loosen the two screws on the float valve
bracket.
NOTE: Turning the adjustment 1/3 of a turn will change the ice thickness about 1.5 mm.
DJUSTING
SCREW
3.2MM ICE BRIDGE
THICKNESS
SV1208
Ice Thickness Check
Make sure the ice thickness probe wire and the bracket do not restrict movement of the probe.
B Raise or lower the float valve assembly as
necessary, then tighten the screws.
5. Move the main ON/OFF/ WASH toggle switch to the OFF position. The water level in the trough will rise above the standpipe and run down the drain.
6. Replace the siphon cap on the standpipe, and verify water level and siphon action by repeating steps 3 through 5.
3-5
Ice Machine Operation Section 3
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3-6
Section 4 Maintenance
Section 4
Maintenance
General
You are responsible for maintaining the ice machine in accordance with the instructions in this manual. Maintenance procedures are not covered by the warranty.
WARNING
If you do not understand the procedures or the safety precautions that must be followed, call your local service representative to perform the maintenance procedures for you.
We recommend that you perform the following maintenance procedures at least every six months to ensure reliable, trouble-free operation and maximum ice production.
Ice Machine Inspection
Check all water fittings and lines for leaks. Also, make sure the refrigeration tubing is not rubbing or vibrating against other tubing, panels, etc.
Do not put anything (boxes, etc.) in front of the ice machine. There must be adequate airflow through and around the ice machine to maximize ice production and ensure long component life.
Exterior Cleaning
Clean the area around the ice machine as often as necessary to maintain cleanliness and efficient operation.
Sponge any dust and dirt off the outside of the ice machine with mild soap and water. Wipe dry with a clean, soft cloth.
A commercial grade stainless steel cleaner/polish can be used as necessary.
Cleaning the Condenser
WARNING
Disconnect electric power to the ice machine at the electric service switch before cleaning the condenser.
AIR-COOLED CONDENSER
A dirty condenser restricts airflow, resulting in excessively high operating temperatures. This reduces ice production and shortens component life. Clean the condenser at least every six months. Follow the steps below.
WARNING
The condenser fins are sharp. Use care when cleaning them.
1. The washable aluminum filter on self-contained ice machines is designed to catch dust, dirt, lint and grease. This helps keep the condenser clean. Clean the filter with a mild soap and water solution.
2. Clean the outside of the condenser with a soft brush or a vacuum with a brush attachment. Clean from top to bottom, not side to side. Be careful not to bend the condenser fins.
3. Shine a flashlight through the condenser to check for dirt between the fins. If dirt remains:
A. Blow compressed air through the condenser
fins from the inside. Be careful not to bend the fan blades.
B. Use a commercial condenser coil cleaner.
Follow the directions and cautions supplied with the cleaner.
4. Straighten any bent condenser fins with a fin comb.
Continued on next page...
4-1
Maintenance Section 4
5. Carefully wipe off the fan blades and motor with a soft cloth. Do not bend the fan blades. If the fan blades are excessively dirty, wash with warm, soapy water and rinse thoroughly.
CAUTION
If you are cleaning the condenser fan blades with water, cover the fan motor to prevent water damage.
“COMB”
DOWN
ONLY
CONDENSER
FIN COMB
4-2
Section 4 Maintenance
Interior Cleaning and Sanitizing
GENERAL
Clean and sanitize the ice machine every six months for efficient operation. If the ice machine requires more frequent cleaning and sanitizing, consult a qualified service company to test the water quality and recommend appropriate water treatment. If required, an extremely dirty ice machine may be taken apart for cleaning and sanitizing.
CAUTION
Use only approved Ice Machine Cleaner and Sanitizer. It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling. Read and understand all labels printed on bottles before use.
CAUTION
Do not mix Ice Machine Cleaner and Sanitizer solutions together. It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling.
WARNING
Wear rubber gloves and safety goggles (and/or face shield) when handling Ice Machine Cleaner or Sanitizer.
CLEANING PROCEDURE
Ice machine cleaner is used to remove lime scale or other mineral deposits. It is not used to remove algae or slime. Refer to “Sanitizing Procedure” on the next page for removal of algae and slime.
Step 1 Set the toggle switch to the OFF position after ice falls from the evaporator at the end of a Harvest cycle. Or, set the switch to the OFF position and allow the ice to melt off the evaporator.
CAUTION
Never use anything to force ice from the evaporator. Damage may result.
Step 2: Remove all ice from the bin. Step 3 To start a cleaning cycle, move the toggle
switch to the WASH position. Step 4 Add the proper amount of Ice Machine
Cleaner to the water trough.
Model Amount of Cleaner
ECV100 60 ml
Step 5 The ice machine will automatically time out a ten-minute cleaning cycle, followed by five rinse cycles, and then stop. This entire cycle lasts approximately 22 minutes.
Step 6 When the cleaning process stops, move the toggle switch to the OFF position. Refer to “Sanitizing Procedure”.
Step 7 The ice machine may be set to start and finish a cleaning procedure, and then automatically start ice making again.
A. Wait about one minute into the cleaning
cycle, then move the toggle switch from WASH to ON position.
B. When the cleaning cycle is completed, an ice
making sequence will start automatically.
4-3
Maintenance Section 4
SANITIZING PROCEDURE
Use sanitizer to remove algae or slime. Do not use it to remove lime scale or other mineral deposits.
Step 1 Set the toggle switch to the OFF position after ice falls from the evaporator at the end of a Harvest cycle. Or, set the switch to the OFF position and allow the ice to melt off the evaporator.
Step 7 Install the removed parts, restore power and place toggle switch in the WASH position. Step 8 Add the proper amount of Ice Machine Sanitizer to the water trough.
Model Amount of Sanitizer
ECV100 90ml
Step 9 The ice machine will automatically time out a
CAUTION
Never use anything to force ice from the evaporator. Damage may result.
Step 2: Remove all ice from the bin. Step 3 Refer to removal of parts for cleaning /
sanitizing and remove ice machine parts. Step 4 Mix a solution of 15 liters of water with
90 ml sanitizer. Step 5 Use the sanitizing solution and a sponge or
ten-minute sanitizing cycle, followed by five rinse cycles, and then stop. This entire cycle lasts approximately 22 minutes.
Step 10 When the sanitizing process stops, move the toggle switch to the ICE position.
cloth to sanitize (wipe) all parts and interior surfaces of the ice machine. Sanitize the following areas:
Side Walls
Base (area above water trough)
Evaporator plastic parts
Bin or dispenser
Step 6 Rinse all sanitized areas with clear water.
4-4
Section 4 Maintenance
REMOVAL OF PARTS FOR CLEANING/SANITIZING
1. Disconnect power to the ice machine at the electric switch box.
2. Turn off the water supply to the ice machine at the water service valve.
WARNING
Disconnect electric power to the ice machine at the electric switch box before proceeding.
3. Remove the parts or components you want to clean or sanitize. See the following pages for removal procedures for these parts.
WARNING
Wear rubber gloves and safety goggles (and/or face shield) when handling Ice Machine Cleaner or Sanitizer.
4. Soak the removed part(s) in a properly mixed solution.
Solution Type Water Mixed With
Cleaner 4 l 500 ml cleaner Sanitizer 15 l 30 ml sanitizer
5. Use a soft-bristle brush or sponge (NOT a wire brush) to carefully clean the parts.
CAUTION
Do not mix Cleaner and Sanitizer solutions together. It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling.
CAUTION
BIN DOOR REMOVAL
1. Disconnect the electric power to the ice machine and remove ice from bin.
2. Grasp the rear of the bin door and pull bin door forward approximately 12.7 cm.
3. Slide bin door to the rear while applying upward pressure (The rear door pins will ride up into the track slot and slide backward to the stop tab).
4. While applying pressure against the bin door pull down on the rear of each bin door track until the door pins clear the stop tabs.
5. Slide the rear door pins off the end and then below the door track. Slide bin door forward allowing the back of the door to lower into the bin. Continue forward with the bin door until the front pins bottom out in the track.
6. Lift right side of door until the front pins clear the track.
7. Remove door from bin.
PRESS DOWN
TO RELEASE
DOOR
TRACK
SLOT
STOP TAB
SLIDE DOOR
FORWARD
Do not immerse the water pump motor in the cleaning or sanitizing solution.
6. Use the solution and a brush to clean the top, sides, and bottom evaporator extrusions; the inside of the ice machine panels; and the entire inside of the bin.
7. Thoroughly rinse all of the parts and surfaces with clean water.
8. Install the removed parts.
9. Turn on the water and electrical supply.
4-5
Maintenance Section 4
ICE THICKNESS PROBE REMOVAL
1. Compress the side of the ice thickness probe near the top hinge pin and remove it from the bracket.
ICE
THICKNESS
PROBE
WATER TROUGH REMOVAL
1. Apply downward pressure on the siphon tube and remove from the bottom of the water trough.
2. Remove the water pump.
3. Remove the upper thumbscrew.
4. While supporting the water trough remove the two thumbscrews from beneath the water trough.
5. Remove the water trough from the bin area
COMPRESS SIDES OF
ICE THICKNESS PROBE
SV1138A
Ice Thickness Probe Removal
NOTE: At this point, the ice thickness probe can easily be cleaned. If complete removal is desired, continue with step 2 below.
WARNING
Disconnect the electric power to the ice machine at the electric service switch box.
2. Follow the ice thickness probe wire to the bulkhead grommet (exit point) in the back wall. Pop the bulkhead grommet out of the back wall by inserting fingernails or a flat object between the back wall and the grommet and prying forward. Pull the bulkhead grommet and wire forward until the connector is accessible, then disconnect the wire lead from the connector.
Ice Thickness Probe Cleaning
1. Mix a solution of ice machine cleaner and water (59 ml of cleaner to 473 ml of water) in a container.
2. Soak ice thickness probe in container of cleaner/water solution while disassembling and cleaning water circuit components (soak ice thickness probe for 10 minutes or longer).
3. Clean all ice thickness probe surfaces including all plastic parts (do not use abrasives). Verify the ice thickness probe cavity is clean. Thoroughly rinse ice thickness probe (including cavity) with clean water, then dry completely.
Incomplete rinsing and drying of the ice thickness probe can cause premature harvest.
4. Reinstall ice thickness probe, then sanitize all ice machine and bin/dispenser interior surfaces.
UPPER
THUMBSCREW
SV1689-1
LOWER
THUMBSCREWS
REMOVE SIPHON
TUBE
SV1689-2
4-6
Section 4 Maintenance
WATER DISTRIBUTION TUBE REMOVAL
1. Remove the ice thickness probe.
2. Disconnect the water hose from the distribution tube.
DISTRIBUTION
TUBE
THUMBSCREW
1. LIFT UP
2. SLIDE BACK
3. SLIDE TO RIGHT
2
3
1
THUMBSCREW
LOCATING PIN
SV1217
Water Distribution Tube Removal
3. Loosen the two thumbscrews, which secure the distribution tube.
4. Lift the right side of the distribution tube up off the locating pin, then slide it back and to the right.
CAUTION
Do not force this removal. Be sure the locating pin is clear of the hole before sliding the distribution tube out.
5. Disassembly for cleaning. A. Twist both of the inner tube ends until the
tabs line up with the keyways.
B. Pull the inner tube ends outward.
INNER
TUBE
KEYWAY
INNER
TUBE
TAB
Water Distribution Tube Disassembly
SV1211
4-7
Maintenance Section 4
FLOAT VALVE REMOVAL
1. Turn off the water supply to the ice machine at the water service valve.
2. Turn the splash shield counterclockwise one or two turns.
WATER PUMP REMOVAL
WARNING
Before removing any parts, unplug or disconnect the electric power to the ice machine at the electric service switch box, and turn off the water supply to the ice machine.
SCREWS
FLOAT VALVE
BRACKET
COMPRESSION
FITTING
SHUT-OFF
VALVE
CA R P AND FILTE
SCREEN
SPLASH SHIELD
FLOAT
SV1695-2
Float Valve Removal
3. Pull the float valve forward and off the mounting bracket.
4. Disconnect the water inlet tube from the float valve at the compression fitting.
5. Remove the cap and filter screen for cleaning.
PUMP
MOUNTING
BRACKET
PUMP
OUTLET
SV1694-1
Water Pump Removal
1. Disconnect the water pump power cord.
2. Disconnect the hose from the pump outlet.
3. Loosen the screws securing the pump-mounting bracket to the bulkhead.
4. Lift the pump and bracket assembly off the mounting screws.
4-8
Section 4 Maintenance
ICE DAMPER REMOVAL/INSTALLATION Removal
1. Grasp ice damper and apply pressure toward the left hand mounting bracket.
2. Apply pressure to the right hand mounting bracket with thumb.
3. Pull ice damper forward when the right hand ice damper pin disengages.
Installation
1. Place ice damper pin in left hand mounting bracket and apply pressure toward the left hand mounting bracket.
2. Apply pressure to the right hand mounting bracket with thumb.
3. Push ice damper toward evaporator until right hand damper pin engages.
STEP 1
STEP 2
STEP 3
STEP 2
SV1742A
STEP 1
STEP 3
SV1742H
4-9
Maintenance Section 4
Removal from Service/Winterization
GENERAL
Special precautions must be taken if the ice machine is to be removed from service for an extended period of time or exposed to ambient temperatures of 0°C or below.
CAUTION
If water is allowed to remain in the ice machine in freezing temperatures, severe damage to some components could result. Damage of this nature is not covered by the warranty.
Follow the applicable procedure below.
SELF-CONTAINED AIR-COOLED ICE MACHINES
1. Disconnect the electric power at the circuit breaker or the electric service switch.
2. Turn off the water supply.
3. Remove the water from the water trough.
4. Disconnect and drain the incoming ice-making water line at the rear of the ice machine.
5. Blow compressed air in both the incoming water and the drain openings in the rear of the ice machine until no more water comes out of the inlet water lines or the drain.
6. Make sure water is not trapped in any of the water lines, drain lines, distribution tubes, etc.
Pry Open the Water Regulating Valve
4-10
Section 4 Maintenance
THIS PAGE INTENTIONALLY LEFT BLANK
4-11
Maintenance Section 4
THIS PAGE INTENTIONALLY LEFT BLANK
4-12
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