Manitowoc Ice Ice Maker QM30 Series User Manual

QM30 Series  
Ice Machines  
Installation,  
Use and Care, Manual  
Thank you for selecting a Manitowoc Ice Machine, the dependability leader in ice making equipment and  
related products. With proper care and maintenance, your new Manitowoc Ice Machine will provide you with  
many years of reliable and economical performance.  
We reserve the right to make product improvements at any time.  
Specifications and design are subject to change without notice.  
Part Number000001772  
10/06  
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Table of Contents  
Table of Contents  
Section 1 - General Information  
Model/Serial Number Location ......................................................................................................................1-1  
Owner Warranty Registration Card..............................................................................................................1-2  
Warranty Coverage .........................................................................................................................................1-2  
Section 2 - Installation Instructions  
Dimensions........................................................................................................................................................2-1  
Location of Ice Machine..................................................................................................................................2-2  
Leveling the Ice Machine.................................................................................................................................2-2  
Electrical Service..............................................................................................................................................2-3  
Water Service/Drains.......................................................................................................................................2-5  
Section 3 - Ice Machine Operation  
Sequence of Operation.....................................................................................................................................3-1  
Ice Thickness Adjustment...............................................................................................................................3-2  
Section 4 - Maintenance  
General..............................................................................................................................................................4-1  
Cleaning and Sanitizing Procedure................................................................................................................4-1  
Cleaning the Condenser ..................................................................................................................................4-2  
Removal from Service/Winterization.............................................................................................................4-8  
Section 5 - Before Calling for Service  
Checklist............................................................................................................................................................5-1  
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Table of Contents  
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Section 1  
General Information  
Section 1  
General Information  
Model/Serial Number Location  
Record the model and serial number of your ice  
machine in the space provided below. These numbers  
are required when requesting information from your  
Manitowoc distributor, service representative, or the  
factory.  
The model and serial number are listed on the  
OWNER WARRANTY REGISTRATION CARD.  
They are also listed on the MODEL/SERIAL  
NUMBER DECAL affixed to the ice machine.  
MODEL AND  
SERIAL NUMBER  
MODEL AND  
SERIAL NUMBER  
sv1702  
Model/Serial Number Location  
MODEL NUMBER: ________________________  
SERIAL NUMBER: _________________________  
1-1  
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General Information  
Section 1  
Owner Warranty Registration Card  
GENERAL  
EXCLUSIONS  
The packet containing this manual also includes  
warranty information. Warranty coverage begins the  
day your new ice machine is installed.  
The following items are not included in the ice  
machine’s warranty coverage:  
1. Normal maintenance, adjustments and cleaning  
as outlined in the Owner/Operator Use and Care  
Guide.  
2. Repairs due to unauthorized modifications to the  
ice machine or the use of non-standard parts  
without prior written approval Manitowoc Ice,  
Inc.  
3. Damage caused by improper installation of the  
ice machine, electrical supply, water supply or  
drainage, or damage caused by floods, storms,  
or other acts of God.  
Important  
Complete and mail the OWNER WARRANTY  
REGISTRATION CARD as soon as possible to  
validate the installation date.  
If you do not return your OWNER WARRANTY  
REGISTRATION CARD, Manitowoc will use the  
date of sale to the Manitowoc Distributor as the first  
day of warranty coverage for your new ice machine.  
4. Premium labor rates due to holidays, overtime,  
etc.; travel time; flat rate service call charges;  
mileage and miscellaneous tools and material  
charges not listed on the payment schedule.  
Additional labor charges resulting from the  
inaccessibility of the ice machine are also  
excluded.  
Warranty Coverage  
GENERAL  
The following Warranty outline is provided for your  
convenience. For a detailed explanation, read the  
warranty bond shipped with each product.  
Contact your local Manitowoc representative or  
Manitowoc Ice, Inc. if you need further warranty  
information.  
5. Parts or assemblies subjected to misuse, abuse,  
neglect or accidents.  
6. Damage or problems caused by installation,  
cleaning and/or maintenance procedures  
inconsistent with the technical instructions  
provided in the Installation Manual and the  
Owner/Operator Use and Care Guide.  
PARTS  
Manitowoc warrants the ice machine against defects  
in materials and workmanship, under normal use  
and service for three (3) years from the date of  
original installation.  
AUTHORIZED WARRANTY SERVICE  
To comply with the provisions of the warranty, a  
refrigeration service company, qualified and  
authorized by a Manitowoc distributor, or a  
Contracted Service Representative must perform the  
warranty repair.  
LABOR  
Labor required to repair or replace defective  
components is covered for three (3) years from the  
date of original installation.  
NOTE: If the dealer the ice machine was purchased  
from is not authorized to perform warranty service,  
contact the Manitowoc distributor or Manitowoc  
Ice, Inc. for the name of the nearest authorized  
service representative.  
Service Calls  
If you have followed the procedures listed in  
Section 5 of this manual, and the ice machine still  
does not perform properly, call your authorized  
service company.  
1-2  
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Section 1  
General Information  
Residential Warranty Coverage  
WHAT IS NOT COVERED?  
WHAT DOES THIS LIMITED WARRANTY COVER?  
This limited warranty does not cover, and you are solely  
responsible for the costs of: (1) periodic or routine  
maintenance, (2) repair or replacement of the Product or parts  
due to normal wear and tear, (3) defects or damage to the  
Product or parts resulting from misuse, abuse, neglect, or  
accidents, (4) defects or damage to the Product or parts  
resulting from improper or unauthorized alterations,  
modifications, or changes; and (5) defects or damage to any  
Product that has not been installed and/or maintained in  
accordance with the instruction manual or technical  
instructions provided by Manitowoc. To the extent that  
warranty exclusions are not permitted under some state laws,  
these exclusions may not apply to you.  
Subject to the exclusions and limitations below, Manitowoc  
Ice, Inc. (“Manitowoc”) warrants to the original consumer that  
any new ice machine manufactured by Manitowoc (the  
“Product”) shall be free of defects in material or workmanship  
for the warranty period outlined below under normal use and  
maintenance, and upon proper installation and start-up in  
accordance with the instruction manual supplied with the  
Product.  
HOW LONG DOES THIS LIMITED WARRANTY  
LAST?  
Ice Machine - Twelve (12) months from the sale date  
EXCEPT AS STATED IN THE FOLLOWING SENTENCE,  
THIS LIMITED WARRANTY IS THE SOLE AND  
EXCLUSIVE WARRANTY OF MANITOWOC WITH  
WHO IS COVERED BY THIS LIMITED WARRANTY?  
This limited warranty only applies to the original consumer of  
the Product and is not transferable.  
REGARD TO THE PRODUCT.  
WARRANTIES ARE STRICTLY LIMITED TO THE  
DURATION OF THE LIMITED WARRANTY  
ALL IMPLIED  
WHAT ARE MANITOWOC ICE’S OBLIGATIONS  
UNDER THIS LIMITED WARRANTY?  
APPLICABLE TO THE PRODUCTS AS STATED ABOVE,  
INCLUDING BUT NOT LIMITED TO, ANY WARRANTY  
OF MERCHANTABILITY OR OF FITNESS FOR A  
If a defect arises and Manitowoc receives a valid warranty  
claim prior to the expiration of the warranty period,  
Manitowoc shall, at its option: (1) repair the Product at  
Manitowoc’s cost, including standard straight time labor  
charges, (2) replace the Product with one that is new or at least  
as functionally equivalent as the original, or (3) refund the  
purchase price for the Product. Replacement parts are  
warranted for 90 days or the balance of the original warranty  
period, whichever is longer. The foregoing constitutes  
Manitowoc’s sole obligation and the consumer’s exclusive  
remedy for any breach of this limited warranty. Manitowoc’s  
liability under this limited warranty is limited to the purchase  
price of Product. Additional expenses including, without  
limitation, service travel time, overtime or premium labor  
charges, accessing or removing the Product, or shipping are  
the responsibility of the consumer.  
PARTICULAR PURPOSE.  
limitations on how long an implied warranty lasts, so the  
above limitation may not apply to you.  
Some states do not allow  
IN NO EVENT SHALL MANITOWOC OR ANY OF ITS  
AFFILIATES BE LIABLE TO THE CONSUMER OR ANY  
OTHER  
PERSON  
FOR  
ANY  
INCIDENTAL,  
CONSEQUENTIAL OR SPECIAL DAMAGES OF ANY  
KIND (INCLUDING, WITHOUT LIMITATION, LOSS OF  
PROFITS, REVENUE OR BUSINESS) ARISING FROM OR  
IN ANY MANNER CONNECTED WITH THE PRODUCT,  
ANY BREACH OF THIS LIMITED WARRANTY, OR ANY  
OTHER CAUSE WHATSOEVER, WHETHER BASED ON  
CONTRACT, TORT OR ANY OTHER THEORY OF  
LIABILITY. Some states do not allow the exclusion or  
limitation of incidental or consequential damages, so the  
above limitation or exclusion may not apply to you.  
HOW TO OBTAIN WARRANTY SERVICE  
HOW STATE LAW APPLIES  
To obtain warranty service or information regarding your  
Product, please contact us at:  
This limited warranty gives you specific legal rights, and you  
may also have rights that vary from state to state or from one  
jurisdiction to another.  
MANITOWOC ICE, INC.  
2110 So. 26th St.,  
P.O. Box 1720,  
REGISTRATION CARD  
Manitowoc, WI 54221-1720  
Telephone: 920-682-0161 Fax: 920-683-7585  
To secure prompt and continuing warranty service, this  
warranty registration card must be completed and sent to  
Manitowoc within thirty (30) days from the sale date.  
Complete the following registration card and send it to  
Manitowoc at the address shown.  
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General Information  
Section 1  
INTENTIONALLY LEFT BLANK  
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Section 2  
Installation Instructions  
Section 2  
Installation Instructions  
Legs  
7.32 cm  
(2.88”)  
15.24 cm  
(6.00”)  
15.09 cm  
(5.94”)  
sv1679b  
9.53 cm  
(3.75”)  
15.73 cm  
(6.19”)  
8.51 cm  
(3.35”)  
7.24 cm  
(2.85”)  
sv1678b  
20.80 cm  
(8.19”)  
3.33 cm  
(1.31”)  
Levelers  
International  
ONLY  
Ice Making  
Water Inlet  
Ice Making  
Water/Bin Drain  
56.74 cm  
(22.34”)  
Electrical Inlet  
sv1678c  
76.20 cm  
(30.00”)  
50.00 cm  
(19.69”)  
2-1  
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Installation Instructions  
Section 2  
Location of Ice Machine  
Leveling the Ice Machine  
The location selected for the ice machine must meet  
the following criteria. If any of these criteria are not  
met, select another location.  
After moving the ice machine into the installation  
location, it must be leveled for proper operation.  
Follow these steps to level the ice machine:  
1. Check the level of the ice machine from front to  
back and from side to side.  
The location must be indoors.  
The location must be free of airborne and other  
contaminants.  
The air temperature must be at least 10°C (50°F),  
but must not exceed 45°C (113°F).  
The location must not be near heat-generating  
equipment or in direct sunlight.  
The counter top (or other resting surface) must be  
able to support 425 kg per square meter (0.6 lb.  
per square inch).  
The location must allow enough clearance for  
water, drain, and electrical connections in the  
rear of the ice machine.  
sv1704  
Checking for Level  
2. If the ice machine is not level, adjust the leveling  
glides or legs on each corner of the base of the ice  
machine as necessary.  
3. Check the level of the ice machine after each  
adjustment.  
The location must not obstruct air flow to any  
portion of the front of the ice machine.  
4. Repeat steps 2 and 3 until the ice machine is level  
from front to back and from side to side.  
CAUTION  
The ice machine must be protected if it will be  
subjected to temperatures below 0°C (32°F).  
Failure caused by exposure to freezing  
temperatures is not covered by the warranty. See  
“Removal from Service/Winterization” on page 4-  
8.  
Levelers  
International  
ONLY  
Self-Contained Air-Cooled  
Top/Sides  
Ba c k  
203 mm (5”)*  
127 mm (5”)*  
sv1705  
NOTE: The ice machine may be built into a cabinet.  
There is no minimum clearance requirement for the  
top or the left and right sides of the ice machine  
Ice Machine Heat of Rejection  
Series  
Heat of Rejection*  
Ice Machine Air Conditioning**  
Peak  
QM30  
1600  
2350  
Legs  
* B.T.U./Hour  
** Because the heat of rejection varies during the ice making cycle, the  
figure shown is an average.  
sv1679b  
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 self-  
contained air-cooled ice machines are installed.  
2-2  
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Section 2  
Installation Instructions  
Electrical Service  
WARNING  
WARNING  
All wiring must conform to local, state and national  
codes.  
Never use an extension cord. If an outlet is not  
within reach of the ice machine’s power cord, have  
a proper amperage outlet wired closer to the ice  
machine.  
Ice Machine  
Model  
Voltage Phase  
Cycle  
Air-Cooled  
Electrical Rating  
.6 KW / 2.6 Amps  
.6 KW/ 5.3 Amps  
QM30  
QM30  
230/50/1  
115/60/1  
FUSE/CIRCUIT BREAKER  
A separate fuse/circuit breaker must be provided for  
each ice machine.  
VOLTAGE  
The maximum allowable voltage variation is ± 10%  
of the rated voltage at ice machine start-up (when the  
electrical load is highest).  
NOTE: A means of disconnect must be provided for  
field wiring.  
ELECTRICAL RATING  
The electrical rating is used to help select the wire  
size of the electrical supply. The wire size (or gauge)  
also depends on location, materials used, length of  
run, etc., so it must be determined by a qualified  
electrician.  
WARNING  
The ice machine must be grounded in accordance  
with national and local electrical codes.  
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 symbol , or  
coloured 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 which is coloured brown must be connected  
to the terminal which is marked with the letter L or  
coloured red.  
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Installation Instructions  
Section 2  
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Section 2  
Installation Instructions  
Water Service/Drains  
WATER SUPPLY  
Install a water shut-off valve for the ice making  
water lines.  
Insulate water lines to prevent condensation.  
Local water conditions may require treatment of the  
water to inhibit scale formation, filter sediment, and  
remove chlorine odor and taste.  
DRAIN CONNECTIONS  
Important  
Follow these guidelines when installing drain lines to  
prevent drain water from flowing back into the ice  
machine and storage bin:  
If you are installing a Manitowoc water filter  
system, refer to the Installation Instructions  
supplied with the filter system for ice making water  
inlet connections.  
Drain lines must have a 2.5 cm (1 inch) drop per  
1 meter (40 inches) of run, and must not create  
traps.  
Follow these guidelines to install water inlet lines:  
The floor drain must be large enough to  
accommodate drainage from all drains.  
Insulate the bin drain line to prevent  
condensation.  
Connect to potable water supply only.  
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  
recommended pressure, obtain a water pressure  
regulator from your Manitowoc distributor.  
WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS  
CAUTION  
Plumbing must conform to state and local codes.  
Water  
Water  
Ice Machine  
Connection  
Tubing Size Up to Ice  
Machine Fitting  
0.95 c m (3/8”)  
minimum inside  
dia meter  
Temperature  
Pressure  
Ice Making  
Water Inlet  
10°C (50°F) Min.1  
2.4 ba r (35 psi) Min.1  
6.2 ba r (90 psi) Ma x.2  
3/4” ma le hose  
c onnec tion3  
30°C (86°F) Ma x.2  
1.59 c m (5/8”)  
inside dia meter  
flexible hose  
1.59 c m (5/8”)  
minimum inside  
dia meter  
Ice Making/Bin  
Water Drain  
---  
---  
1 Min. = Minimum  
2 Max. = Maximum  
3 A 3/4” by 11-1/2 threads per inch to 14 threads per inch adapter is factory installed. Remove this adapter if 11-1/2 threads per inch  
connection is desired.  
2-5  
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Installation Instructions  
Section 2  
Typical Water Supply and Drain Line Sizing and Connections  
OVERFLOW  
TUBE  
DRAIN  
HOLE  
Important  
Over flow tube must be securely  
installed during initial set up.  
ICE MAKING WATER INLET TUBING  
0.95 cm (3/8”) MINIMUM INSIDE DIAMETER  
sv1680b  
WATER SHUT OFF VALVES  
ICE MAKING/BIN WATER DRAIN TUBING  
1.59 cm (5/8”) MINIMUM INSIDE DIAMETER  
2-6  
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Section 3  
Ice Machine Operation  
Section 3  
Ice Machine Operation  
Sequence of Operation  
Control Board Relays  
2
Hot Gas Valve  
Water Fill Valve  
Ice Making  
Sequence of  
Operation  
1
3
Length of  
ONTime  
Water Pump  
Fan Motor  
Compressor  
Start-Up1  
2.9 Minutes  
(175 Sec onds)  
Off  
On  
On  
On  
Off  
On  
On  
Off  
On  
Off  
Off  
Off  
On  
Off  
Off  
1. Water Purge  
2. Refrigeration  
System Start-Up  
5 Sec onds  
Automa tic a lly  
determined  
Automa tic a lly  
determined  
3. Freeze Cycle  
4. Harvest Cycle  
5. Auto Shut-Off  
Until bin thermosta t  
re-c loses  
1 Initial Start-Up or Start-Up After Automatic Shut-Off  
INITIAL START-UP OR START-UP AFTER  
AUTOMATIC SHUT-OFF  
1. Water Purge  
The water fill valve and the hot gas valve are  
energized for 2.9 minutes (175 seconds). This  
ensures that the ice making cycle starts with fresh  
water, and that the refrigerant pressures are  
equalized prior to refrigeration system start-up.  
4. Harvest Cycle  
The condenser fan motor and water pump de-  
energize. The water fill valve energizes to purge the  
water in the water trough. The hot gas valve also  
energizes at the beginning of the harvest cycle to  
divert hot refrigerant gas into the evaporator. The  
hot refrigerant gas warms the evaporator, causing  
the cubes to slide, as a sheet, off the evaporator and  
into the ice storage bin.  
2. Refrigeration System Start-Up  
The control system automatically determines the  
length of the harvest cycle, based on the  
temperature of the refrigeration system liquid line at  
the end of the freeze cycle. At the end of the harvest  
cycle, the ice machine returns to another freeze  
cycle (step 3, above).  
The compressor starts 2.9 minutes (175 seconds)  
after the water fill valve and hot gas valve are  
energized. (The water fill valve and hot gas valve  
remain energized for 5 seconds during compressor  
start-up, and then shut off.) The compressor remains  
on throughout the entire freeze and harvest cycles.  
5. Automatic Shut-Off  
3. Freeze Cycle  
The level of ice in the ice storage bin controls the  
ice machine shut-off. When the bin is full, ice cubes  
contact the bin thermostat bulb holder, which cools  
down and opens to stop the ice machine. The ice  
machine remains off until enough ice has been  
removed from the bin. This causes the thermostat  
bulb holder to warm and close, restarting the ice  
machine. When the ice machine restarts, it returns  
to the start-up sequence (steps 1 and 2, above).  
The condenser fan motor and water pump are  
energized and remain on throughout the entire  
freeze cycle. An even flow of water is directed  
across the evaporator and into each cube cell, where  
it freezes.  
The control system automatically determines the  
length of the freeze cycle by monitoring the  
temperature of the refrigeration system liquid line.  
3-1  
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Ice Machine Operation  
Section 3  
Ice Thickness Adjustment  
QM-30 dice ice cube formation is slightly different  
from our previous models. Manitowoc ice  
machines have a unique cube shape. It is normal to  
have a dimple in the ice cube (a concave indentation  
in the cube). Ice cubes from the QM-30 may appear  
to have a slightly larger dimple than other  
Manitowoc dice cube machines. Therefore, cube  
size for the QM-30 is determined by measuring the  
slab weight (the combined weight of all cubes from  
one harvest cycle). To determine proper slab  
weight follow the instructions listed below.  
4. Remove the air filter.  
5. Remove the two screws holding the front panel  
in place and remove the front cover.  
6. Locate the ice thickness control dial on the  
control board (see below). Turn the dial  
clockwise for a thicker cube or counter  
clockwise for a thinner cube.  
ICE THICKNESS  
ADJUSTMENT DIAL  
ICE BRIDGE SHOULD BE 1.5 MM  
TO 3.2 MM THICKNESS  
DIAL IS FACTORY  
SET TO ZERO  
A DIMPLE IN EACH  
CUBE CELL IS  
sv1709  
NORMAL  
Correct Ice Bridge Thickness  
1. Ensure the air filter, front, and back panels are  
installed properly and close the bin door.  
2. During the third harvest cycle open the bin door  
sv1710  
and catch the entire slab of ice.  
Ice Thickness Adjustment Dial  
3. Weigh the ice slab. The combined weight of all  
cubes from one harvest should weigh between  
200 - 270g (7 - 9-oz). If the slab weight is  
within this range, the ice machine is working  
properly and no further action is needed. If the  
slab weight is not within this range or you desire  
a slightly thicker or thinner cube, continue to  
step four.  
7. Assure all of the panels and air filter are  
reinstalled properly and the bin door is closed.  
Repeat steps one through three.  
After completing the procedure above, if you are  
unable to obtain a sheet of ice weighing 200 - 270g  
(7 - 9-oz) contact the Manitowoc Service  
Department for further assistance.  
WARNING  
Do not touch electrical wires. Disconnect power to  
the ice machine before making any ice thickness  
adjustments.  
3-2  
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Section 4  
Maintenance  
Section 4  
Maintenance  
Interior Cleaning and Sanitizing  
GENERAL  
CLEANING AND SANITIZING PROCEDURE  
You are responsible for maintaining the ice machine  
in accordance with the instructions in this manual.  
Maintenance procedures are not covered by the  
warranty.  
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.  
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.  
The ice machine must be taken apart for cleaning and  
sanitizing.  
WARNING  
Wear rubber gloves and safety goggles (and/or face shield)  
when handling Ice Machine Cleaner or Sanitizer.  
Ice machine cleaner is used to remove lime scale and  
mineral deposits. Ice machine sanitizer disinfects and  
removes algae and slime.  
CAUTION  
Use only Manitowoc approved Ice Machine Cleaner (part  
number 94-0546-3) and Sanitizer (part number 94-0565-3). 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.  
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.  
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Maintenance  
Section 4  
Step 4 Wait until water flows over the evaporator  
(about three minutes) then add the proper amount of  
Manitowoc Ice Machine Cleaner to the water trough.  
Step 6: Remove parts for cleaning.  
A. Remove the Bin Door  
Grasp the rear of the bin door and pull bin door  
forward approximately 5”.  
Model  
QM30  
Amount of Cleaner  
45 ml (1.5 ounc es)  
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).  
Step 5 Wait until the clean cycle is complete  
(approximately 45 minutes) then place the toggle  
switch in the OFF position, disconnect power and  
water supplies to the ice machine.  
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.  
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.  
WARNING  
Disconnect electric power to the ice machine at the electric  
switch box before proceeding.  
Lift right side of door until the front pins clear the  
track, then remove door from bin.  
PRESS DOWN  
TO RELEASE  
DOOR  
STOP TAB  
TRACK  
SLOT  
SLIDE  
DOOR  
FORWARD  
4-2  
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Section 4  
Maintenance  
Parts Removal Overview  
WATER  
DISTRIBUTION  
TUBE  
WATER PUMP AND  
BRACKET ASSEMBLY  
WATER PUMP  
OUTLET HOSE  
OVERFLOW  
TUBE  
EVAPORATOR ASSEMBLY  
(REMAINS IN PLACE)  
WATER  
TROUGH  
4-3  
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Maintenance  
Section 4  
B. Remove the Overflow Tube  
D. Remove the Water Pump  
To remove the tube, lift it up while using a slight  
back and forth motion to loosen it from the drain  
hole.  
Disconnect the water pump power cord.  
Disconnect the water hose from the pump outlet.  
Loosen the screws that hold the water pump in  
place.  
Lift the water pump and bracket assembly up and  
off the screws.  
When installing the tube, be sure it is completely  
inserted into the drain hole to prevent water leakage  
during normal operation.  
OVERFLOW  
TUBE  
POWER CORD  
OUTLET  
SCREWS  
DRAIN  
HOLE  
WATER PUMP  
sv1713  
Removing the Water Pump  
E. Remove the Water Trough  
sv1684b  
Remove the screws holding the water trough to  
the walls of the cabinet.  
Removing the Overflow Tube  
C. Remove the Vinyl Hose  
Disconnect the water pump discharge hose from  
the distribution tube and water pump.  
4-4  
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Section 4  
Maintenance  
Step 7 Mix a solution of cleaner and warm water.  
Depending on the amount of mineral buildup, a larger  
quantity of solution may be required. Use the ratio in  
the table below to mix enough solution to thoroughly  
clean all parts.  
Step 11 Use 1/2 of the sanitizer/water solution to  
sanitize all removed components. Use a cloth or  
sponge to liberally apply the solution to all surfaces  
of the removed parts or soak the removed parts in the  
sanitizer/water solution. Do not rinse parts after  
sanitizing.  
Solution Type  
Water  
Mixed with  
Step 12 Use 1/2 of the sanitizer/water solution to  
sanitize all foodzone surfaces of the ice machine and  
bin. Use a cloth or sponge to liberally apply the  
solution. When sanitizing, pay particular attention to  
the following areas:  
Cleaner  
4L. (1 gal)  
500 ml (16 oz) cleaner  
Step 8 Use ½ of the cleaner/water solution to clean  
all components. The cleaner solution will foam when  
it contacts lime scale and mineral deposits; once the  
foaming stops use a soft bristle brush, sponge or cloth  
(not a wire brush) to carefully clean the parts. Soak  
the parts for 5 minutes (15 – 20 minutes for heavily  
scaled parts). Rinse all components with clean water.  
Evaporator plastic parts - including top, bottom  
and sides  
Bin bottom, sides and top  
Do not rinse the sanitized areas.  
Step 13 Replace all removed components.  
Step 9 While components are soaking, use ½ of the  
cleaner/water solution to clean all foodzone surfaces  
of the ice machine and bin. Use a nylon brush or  
cloth to thoroughly clean the following ice machine  
areas:  
Step 14 Reapply power and water to the ice machine  
and place the toggle switch in the WASH position.  
Step 15 Add the proper amount of Manitowoc Ice  
Machine Sanitizer to the water trough.  
Evaporator plastic parts – including top, bottom  
and sides  
Model  
Amount of Sanitizer  
QM30  
45 ml (1.5 oz)  
Bin bottom, sides and top  
Step16 Wait until the sanitize cycle is complete  
(approximately 45 minutes) then place the toggle  
switch in the OFF position, disconnect power and  
water supplies to the ice machine.  
Rinse all areas thoroughly with clean water.  
Step 10 Mix a solution of sanitizer and warm water.  
Solution Type  
Water  
Mixed With  
Sanitizer  
23L. (6 gal)  
120ml (4 oz) sanitizer  
4-5  
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Maintenance  
Section 4  
EXTERIOR CLEANING  
Clean the area around the ice machine as often as  
necessary to maintain cleanliness and efficient  
operation.  
WARNING  
Disconnect electric power to the ice machine at the electric  
switch box before proceeding.  
Sponge any dust and dirt off the outside of the ice  
machine with mild soap and water. Wipe dry with a  
clean, soft cloth.  
Step 17 Repeat step 6 to remove parts for hand  
sanitizing.  
Step 18 Mix a solution of sanitizer and warm water.  
Treat all exterior stainless steel surfaces with a  
commercial grade stainless steel cleaner/polish.  
Solution Type  
Sanitizer  
Water  
23L. (6 gal)  
Mixed With  
120 ml (4 oz) sanitizer  
ICE MACHINE INSPECTION  
Step 19 Use 1/2 of the sanitizer/water solution to  
sanitize all removed components. Use a cloth or  
sponge to liberally apply the solution to all surfaces  
of the removed parts or soak the removed parts in the  
sanitizer/water solution. Do not rinse parts after  
sanitizing.  
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.  
Step 20 Use 1/2 of the sanitizer/water solution to  
sanitize all foodzone surfaces of the ice machine and  
bin. Use a cloth or sponge to liberally apply the  
solution. When sanitizing, pay particular attention to  
the following areas:  
Evaporator plastic parts - including top, bottom  
and sides  
Bin bottom, sides and top  
Do not rinse the sanitized areas.  
Step 21 Replace all removed components.  
Step 22 Reapply power and water to the ice machine  
and place the toggle switch in the ICE position.  
4-6  
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Section 4  
Maintenance  
CLEANING THE CONDENSER  
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.  
WARNING  
Disconnect electric power to the ice machine at the electric  
service switch before cleaning the condenser.  
2. Shine a flashlight through the condenser to check  
for dirt between the fins. If dirt remains: Blow  
compressed air through the condenser fins from  
the inside. Be careful not to bend the fan blades.  
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.  
3. 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.  
WARNING  
The condenser fins are sharp. Use care when cleaning them.  
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.  
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.  
CAUTION  
If you are cleaning the condenser fan blades with water, cover  
the fan motor to prevent water damage.  
REMOVE THE  
FILTER  
sv1681a  
Removing the Filter  
4-7  
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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  
(32°F) 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.  
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 the drain and the incoming ice-  
making water line at the rear of the ice machine.  
5. Make sure no water is trapped inside the ice  
machine incoming water lines, drain lines,  
distribution tubes, etc. Blow compressed air  
through the line if necessary.  
4-8  
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Section 5  
Before Calling for Service  
Section 5  
Before Calling for Service  
Checklist  
If a problem arises during operation of your ice machine, follow the checklist below before calling for service.  
Problem  
Ic e ma c hine does not  
opera te.  
Possible Cause  
No elec tric a l power to the ic e  
ma c hine.  
To Correct  
Repla c e the fuse/reset the  
brea ker/turn on the ma in switc h.  
Move the toggle switc h to the ON  
position.  
Toggle switc h set improperly.  
Low a ir tempera ture a round ic e  
ma c hine.  
Ic e ma c hine does not relea se Ic e ma c hine is dirty.  
Air tempera ture must be a t lea st  
10°C (50°F).  
C lea n a nd sa nitize the ic e ma c hine.  
See pa ges 4-4.  
ic e or is slow to ha rvest.  
Ic e ma c hine is not level.  
Level the ic e ma c hine.  
See pa ge 2-2.  
Low a ir tempera ture a round ic e  
ma c hine.  
Poor inc oming wa ter qua lity.  
Air tempera ture must be a t lea st  
10°C (50°F).  
C onta c t a qua lified servic e  
c ompa ny to test the qua lity of the  
inc oming wa ter a nd ma ke  
a ppropria te filter rec ommenda tions.  
Repla c e the filter.  
Ic e qua lity is poor  
(soft or not c lea r).  
Wa ter filtra tion is poor.  
Ic e ma c hine is dirty.  
C lea n a nd sa nitize the ic e ma c hine.  
See pa ges 4-4.  
Wa ter inlet va lve filter sc reen is dirty.  
Remove the wa ter inlet va lve a nd  
c lea n the filter sc reen.  
See pa ge 4-6.  
Wa ter softener is working improperly  
(if a pplic a ble).  
Repa ir the wa ter softener.  
Continued on next page...  
5-1  
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Before Calling for Service  
Section 5  
Problem  
Ic e ma c hine produc es  
sha llow or inc omplete c ubes,  
or the ic e fill pa ttern on the  
eva pora tor is inc omplete.  
Possible Cause  
Wa ter level is low.  
To Correct  
Be sure the overflow tube is fully  
sea ted to prevent wa ter lea ka ge.  
See pa ge 4-5.  
Wa ter inlet va lve filter sc reen is dirty.  
Remove the wa ter inlet va lve a nd  
c lea n the filter sc reen.  
See pa ge 4-6.  
Wa ter filtra tion is poor.  
Hot inc oming wa ter.  
Repla c e the filter.  
C onnec t the ic e ma c hine to a c old  
wa ter supply. See pa ge 2-5.  
Ic e thic kness a djustment dia l is not set Adjust the ic e thic kness a djustment  
properly.  
Inc orrec t inc oming wa ter pressure.  
dia l. See pa ge 3-2.  
Wa ter pressure must be 240-620 kPA  
(34.8 - 89.9 psi).  
Ic e ma c hine is not level.  
Level the ic e ma c hine.  
See pa ge 2-2.  
Low ic e c a pa c ity.  
Wa ter inlet va lve filter sc reen is dirty.  
Remove the wa ter inlet va lve a nd  
c lea n the filter sc reen.  
See pa ge 4-6.  
Inc oming wa ter supply is shut off.  
The a ir filter is dirty.  
The c ondenser is dirty.  
Open the wa ter servic e va lve.  
C lea n the a ir filter. See pa ge 4-2.  
C lea n the c ondenser. See pa ge 4-2.  
Ina dequa te a irflow a t the front of the Remove items bloc king a irflow a t  
ic e ma c hine. the front of the ic e ma c hine.  
Ic e thic kness a djustment dia l is not set Adjust the ic e thic kness a djustment  
properly. dia l. See pa ge 3-2.  
5-2  
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MANITOWOC ICE, INC.  
2110 South 26th Street P.O. Box 1720  
Ma nitowoc , WI 54221-1720 USA  
Phone: (920) 682-0161  
Servic e Fa x: (920) 683-7585  
Web Site - www.ma nitowoc ic e.c om  
We reserve the right to ma ke produc t  
improvements a t a ny time.  
©2006 Ma nitowoc Ic e, Inc .  
Spec ific a tions a nd design a re subjec t  
to c ha nge without notic e.  
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