Manitowoc Ice PD0532R Owner’s Manual
P Model
Point of Use
Ice
Machine
Installation,
Use and Care,
and Service 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.
Part Number 80-1125-3
Safety Notices
Procedural Notices
When using or servicing a P Model Ice Machine, be
sure to pay close attention to the safety notices in
this manual. Disregarding the notices may lead to
serious injury and/or damage to the ice machine.
Throughout this manual, you will see the following
types of safety notices:
WARNING
Text in a Warning box alerts you to a potential
personal injury situation. Be sure to read the
Warning statement, and then proceed carefully.
CAUTION
Text in a Caution box alerts you to a situation in
which you could damage the ice machine. Be sure
to read the Caution statement, and then proceed
carefully.
When using or servicing a P Model Ice Machine, be
sure to read the procedural notices in this manual.
These notices supply helpful and important
information.
Throughout this manual, you will see the following
types of procedural notices:
Important
Important boxes serve two functions.
They call the operator’s attention to important
information.
They also provide the service technician with
information that may help in performing a
procedure more efficiently. Disregarding this
information may slow down the work.
NOTE: Text set off as a Note provides you with
simple, but useful, extra information.
CAUTION
Proper care and maintenance are essential for
trouble-free operation of your Manitowoc Ice
Machine.
Read and understand this manual. It contains
valuable care and maintenance information. If you
encounter problems not covered by this manual,
feel free to contact Manitowoc Ice, Inc. We will be
happy to provide assistance.
We reserve the right to make product
improvements at any time.
MANITOWOC ICE, INC.
2110 South 26th Street P.O. Box 1720
Manitowoc, WI 54221-1720
Phone: (920) 682-0161
Service Fax: (920) 683-7585
Web Site: http://www.manitowocice.com
Specifications and design are subject to
change without notice.
ã1998 Manitowoc Ice, Inc.
Litho in USA
Table of Contents
Table of Contents
Section 1 - General Information
Model Numbers................................................................................................................................................1-1
Accessories ........................................................................................................................................................1-1
Model/Serial Number Location.......................................................................................................................1-2
Owner Warranty Registration Card..............................................................................................................1-3
Warranty Coverage..........................................................................................................................................1-3
Section 2 - Installation Instructions
General..............................................................................................................................................................2-1
Ice Machine Dimensions..................................................................................................................................2-1
Location of Ice Machine ..................................................................................................................................2-2
Location of Condensing Unit...........................................................................................................................2-2
Leveling the Ice Machine.................................................................................................................................2-2
Electrical Service..............................................................................................................................................2-3
Water Service/Drains.......................................................................................................................................2-4
Refrigerant Charge..........................................................................................................................................2-5
Pre-Charged Lineset Installation
Routing Pre-Charged Linesets..................................................................................................................2-7
Lengthening or Reducing Line Set Lengths ............................................................................................2-8
Connecting a Lineset..................................................................................................................................2-9
Lineset Service Valves................................................................................................................................2-9
Installation Checklist.......................................................................................................................................2-10
Before Starting the Ice Machine.....................................................................................................................2-10
Section 3 - Ice Machine Operation
Component Identification................................................................................................................................3-1
Ice Making Sequence of Operation ................................................................................................................3-2
Operational Checks..........................................................................................................................................3-4
Section 4 - Maintenance
General..............................................................................................................................................................4-1
Ice Machine Inspection....................................................................................................................................4-1
Exterior Cleaning.............................................................................................................................................4-1
Cleaning the Condenser...................................................................................................................................4-1
Interior Cleaning and Sanitizing ....................................................................................................................4-2
Removal of Parts for Cleaning/Sanitizing......................................................................................................4-4
Water Treatment/Filtration............................................................................................................................4-9
Removal from Service/Winterization.............................................................................................................4-10
i
Table of Contents
Table of Contents (co n t . )
Section 5 - Before Calling for Service
Checklist............................................................................................................................................................5-1
Safety Limit Stand-By Mode...........................................................................................................................5-2
Section 6 – Service
Energized Parts Chart.....................................................................................................................................6-1
Main Fuse..........................................................................................................................................................6-2
Bin Switch.........................................................................................................................................................6-2
Toggle Switch....................................................................................................................................................6-4
Harvest Heater Element ..................................................................................................................................6-4
Harvest Heater Element Thermostat .............................................................................................................6-5
Low Pressure Control......................................................................................................................................6-5
Suction Solenoid valve .....................................................................................................................................6-6
Line Set Isolation valves ..................................................................................................................................6-6
Evaporator removal.........................................................................................................................................6-7
Control Board...................................................................................................................................................6-8
Safety Limits.....................................................................................................................................................6-9
Ice Thickness Probe (Harvest Initiation)
How the Probe Works................................................................................................................................6-12
Harvest/Safety Limit Light........................................................................................................................6-12
Freeze Time Lock-In Feature....................................................................................................................6-12
Maximum Freeze Time..............................................................................................................................6-12
Ice Thickness Check...................................................................................................................................6-12
Diagnosing Ice Thickness Control Circuitry
Ice Machine Does Not Cycle Into Harvest ........................................................................................6-13
Ice Machine Prematurely Cycles Into Harvest .................................................................................6-14
Water Level Control Circuitry
Water Level Probe Light...........................................................................................................................6-15
Freeze Cycle Water Level Setting.............................................................................................................6-15
Water Inlet Valve Safety Shut-off ............................................................................................................6-15
Freeze Cycle Circuitry...............................................................................................................................6-15
Harvest Cycle Circuitry.............................................................................................................................6-15
Diagnosing Freeze Cycle Potable Water Circuitry
Water Trough Overfilling During The Freeze Cycle........................................................................6-16
Water Will Not Run Into The Sump Trough During The Freeze Cycle.........................................6-18
Wiring Diagram................................................................................................................................................6-19
Tubing Schematic.............................................................................................................................................6-20
24 Hour Production Graphs
P520/P530....................................................................................................................................................6-21
ii
Section 1 General Information
Section 1
General Information
Model Numbers
This manual covers the following models:
Ice Machine
PD0522N
PY0524N
PD0532N
PY0534N
Accessories
Contact your Manitowoc distributor for these
optional accessories:
BIN CASTER
Replaces standard legs.
ICE BAGGER
Maximize profits from bagged ice sales with this
convenient accessory. This sturdy unit rests on the
bin door frame, and adapts for left or right side
filling.
TRI-LIMINATOR WATER FILTER SYSTEM
Engineered specifically for Manitowoc ice machines,
Tri-Liminator water filters are an efficient,
dependable, and affordable method of inhibiting scale
formation, filtering sediment, and removing chlorine
taste and odor.
MANITOWOC CLEANER AND SANITIZER
Manitowoc Ice Machine Cleaner and Sanitizer are
available in convenient 16 oz. (473 ml) bottles. These
are the only cleaner and sanitizer approved for use
with Manitowoc products.
DISPENSER
A counter-top dispenser is ideal for cafeterias and
many types of self-service facilities. Manitowoc autofill, floor-standing ice dispensers meet the strict
sanitary requirements of the food service, lodging,
and health care industries.
1-1
General Information
Model/Serial Number Location
Section 1
Record the model and serial number of your ice
machine and bin or dispenser in the space provided
below. These numbers are required when requesting
information from your local Manitowoc distributor,
service representative, or Manitowoc Ice, Inc.
P-520
MODEL/SERIAL
NUMBER
DECAL
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.
P-530
MODEL/SERIAL
NUMBER
DECAL
1-2
Model/Serial Number Location
Ice Machine
Model Number
Serial Number
Model Number
Serial Number
Model Number
Serial Number
Model Number
Serial Number
SV1700A
Section 1 General Information
Owner Warranty Registration Card
GENERAL
The packet containing this manual also includes
warranty information. Warranty coverage begins the
day your new ice machine is installed.
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.
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.
Important
This product is intended exclusively for
commercial application. No warranty is extended
for personal, family, or household purposes.
ICE MACHINE PARTS
1. 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.
2. The evaporator is covered by an additional two
(2) year (five years total) warranty beginning on
the date of the original installation.
ICE MACHINE LABOR
1. Labor required to repair or replace defective
components is covered for three (3) years from
the date of original installation.
2. The evaporator is covered by an additional two
(2) year (five years total) labor warranty
beginning on the date of the original installation.
CONDENSING UNIT WARRANTY
Condensing units (compressor ect.) are not covered
under Manitowoc’s warranty. Process all claims
following the condenser manufactures guidelines.
EXCLUSIONS
The following items are not included in the ice
machine’s warranty coverage:
1. Condensing unit parts (compressor ect) or repairs.
Contact the condensing unit manufacturer for
warranty information.
2. Normal maintenance, adjustments and cleaning as
outlined in this manual.
3. Repairs due to unauthorized modifications to the
ice machine or use of non-standard parts without
prior written approval from Manitowoc Ice, Inc.
4. 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.
5. 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 equipment are also excluded.
6. Parts or assemblies subjected to misuse, abuse,
neglect or accidents.
7. Damage or problems caused by installation,
cleaning and/or maintenance procedures
inconsistent with the technical instructions
provided in this manual.
8. This product is intended exclusively for
commercial application. No warranty is extended
for personal, family, or household purposes.
AUTHORIZED WARRANTY SERVICE
To comply with the provisions of the warranty, a
refrigeration service company, qualified and
authorized by your Manitowoc distributor, or a
Contracted Service Representative must perform the
warranty repair.
NOTE: If the dealer you purchased the ice machine
from is not authorized to perform warranty service,
contact your Manitowoc distributor or Manitowoc
Ice, Inc. for the name of the nearest authorized
service representative.
Service Calls
Normal maintenance, adjustments and cleaning as
outlined in this manual are not covered by the
warranty. If you have followed the procedures listed
on page 5-1 of this manual, and the ice machine still
does not perform properly, call your authorized
service company.
1-3
General Information Section 1
THIS PAGE INTENTIONALLY LEFT BLANK
1-4
Section 2 Installation Instructions
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S
9A
SV1697A
Section 2
Installation Instructions
General
These instructions are provided to assist the qualified
installer. Check your local Yellow Pages for the
name of the nearest Manitowoc distributor, or call
Failure to follow these installation guidelines may
affect warranty coverage.
Important
Manitowoc Ice, Inc. for information regarding startup services.
Ice Machine Dimensions
P-520 ICE MACHINE P-530 ICE MACHINE
14.75
22.00
9.65
7.50
1.39
3.12
26.50
8.12
9.34
5.00
2.31
1.25
V171
21.75
12.87
30.00
4.00
1.80
9.43
7.62
5.31
2.62
2-1
Installation Instructions Section 2
Location of 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.
• The location must be free of airborne and other
contaminants.
• The air temperature must be at least 35°F (1.6°C),
but must not exceed 110°F (43.4°C).
• The location must not be near heat-generating
equipment or in direct sunlight.
Ice Machine
Head Section
Top/Sides 5” (127 mm)*
Back 5” (127 mm)*
There is no minimum clearance required. This value is
recommended for servicing only.
CAUTION
The ice machine must be protected if it will be
subjected to temperatures below 32°F (0°C).
Failures caused by exposure to freezing
temperatures are not covered by the warranty. See
“Removal from Service/Winterization” on page 4-
10.
Leveling the Ice Machine
1. Screw the leveling legs onto the bottom of the
bin.
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 bin into its final position.
4. Level the bin to assure that the bin door closes
and seals properly. Use a level on top of the bin.
Turn each foot as necessary to level the bin.
THREAD
LEVELING LEG
INTO BASE OF
CABINET
Location of Condensing Unit
The location selected for the condensing unit must
meet the following criteria. If any of these criteria are
not met, select another location.
• The location must allow connection of all pre-
charged line sets, with out exceeding total
distance, rise or drop guidelines. (see page 2-7)
• Refer to the manual supplied with the condensing
unit, for Copeland’s clearance requirements.
THREAD “FOOT”
Leveling Leg and Foot
IN AS FAR AS
POSSIBLE
SV1606
2-2
Section 2 Installation Instructions
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 at compressor start-up (when the
electrical load is highest).
WARNING
The ice machine must be grounded in accordance
with national and local electrical codes.
P-520 - P-530 - ICE MACHINES
FUSE/CIRCUIT BREAKER
A separate fuse/circuit breaker must be provided for
each ice machine. Circuit breakers must be H.A.C.R.
rated (does not apply in Canada).
MINIMUM CIRCUIT AMPACITY
The minimum circuit ampacity is used to help select
the wire size of the electrical supply. (Minimum
circuit ampacity is not the ice machine’s running amp
load).
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.
Ice Machine
P-520 and P-530 115/1/60 20 16
CONDENSING UNIT
Refer to nameplate for correct voltage and
amperage ratings.
Scroll compressors will compress in one direction
of rotation only. Three phase compressor motors are
capable of running in either direction. Interchanging
any two of the three main power leads will reverse
the direction of rotation.
Verifying 3 Phase Direction of Rotation
Complete the entire installation of the ice machines
and condensing unit. Energize one ice machine and
the condensing unit, and monitor the suction and
discharge pressures.
Voltage/Phase/Cycle
Maximum Fuse/Circuit Breaker Minimum Circuit Amps
Symptoms of incorrect 3 phase rotation:
1. Noisy compressor operation.
2. Low amp draw
3. Elevated suction pressure.
4. Decreased head pressure
CAUTION
Verify correct compressor rotation on
three phase units.
2-3
Installation Instructions Section 2
Water Service/Drains
WATER SUPPLY
Local water conditions may require treatment of the
water to inhibit scale formation, filter sediment, and
remove chlorine odor and taste.
Important
If you are installing a Manitowoc Tri-Liminator
water filter system, refer to the Installation
Instructions supplied with the filter system for ice
making water inlet connections.
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
recommended pressure, obtain a water pressure
regulator from your Manitowoc distributor.
• Install a water shut-off valve for the ice making
water line.
• Insulate water inlet lines to prevent condensation.
DRAIN CONNECTIONS
Follow these guidelines when installing drain lines to
prevent drain water from flowing back into the ice
machine and storage bin:
• Drain lines must have a 1.5-inch drop per 5 feet
of run (2.5 cm per meter), and must not create
traps.
• The floor drain must be large enough to
accommodate drainage from all drains.
• Run separate bin and ice machine drain lines.
Insulate them to prevent condensation.
• Vent the bin and ice machine drain to the
atmosphere.
2-4
Section 2 Installation Instructions
WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS
CAUTION
Plumbing must conform to state and local codes.
Location
Ice Making
Water Inlet
Ice Making
Water Drain
Bin Drain
Water
Temperature
33°F (0.6°C) Min.
90°F (32.2°C) Max.
--- ---
--- ---
Water
Pressure
20 psi (137.9 kPA) Min.
80 psi (551.5 kPA) Max.
Ice Machine
Fitting
3/8” Female Pipe
Thread
1/2” Female Pipe
Thread
3/4” Female Pipe
Thread
Tubing Size Up to Ice
Machine Fitting
3/8” (9.5 mm)
minimum inside
diameter
1/2” (12.7 mm)
minimum inside
diameter
3/4” (19.1 mm)
minimum inside
diameter
2-5
Installation Instructions Section 2
REFRIGERANT CHARGE
The Copeland condensing unit ships from the
factory with a refrigerant charge appropriate for
installation with three ice machines, and line sets of
up to 50' (15.25 m) per ice machine.
The model/serial nameplate on the ice machine
indicates the refrigerant type.
Additional refrigerant is required for installations
using four ice machines.
The receiver is designed to hold a charge sufficient
to operate the ice machine in ambient temperatures
between -20°F (-28.9°C) and 120°F (54.4°C), with
line set lengths of up to 50' per ice machine.
CAUTION
Do not operate condensing unit without
first connecting tubing and Ice Machines
to all aeroquip fittings. The diaphragm on
the aeroquip fitting is not designed for
extended use at high system pressures,
and could result in a refrigerant Leak.
FOUR ICE MACHINE INSTALLATIONS
When connecting a fourth ice machine:
• Refrigeration systems and compressors with
POE oil must not be left open to the atmosphere
for more than 15 minutes. Open system just
prior to brazing and be prepared to hook up a
vacuum pump immediately after brazing.
• Recover the refrigerant charge in the condensing
unit.
• Braze tubing for the additional ice machine to
the manifold assembly.
• Replace the condensing unit line drier.
• Perform a leak test, evacuate system to 250
microns, and weigh in the correct refrigerant
charge.
Model Total refrigerant amount
(R-404A) as shipped from
factory.
Additional Refrigerant to be
added for fourth ice machine
Maxi mum system charge
(Never exceed)
P520/530
3 Ice Machines and 20' to
16.5 lbs. (264 oz.) None 16.5 lbs. (264 oz.)
50' of tubing per ice
machine
P520/P530
4 Ice Machines and 20' to
16.5 lbs. (264 oz.) 3.0 lbs. (48 oz.) 19.5 lbs. (312 oz.)
50' of tubing per ice
machine
When utilized with Copeland condensing unit VJAL-022Z-CFV-051 or VJAL-022Z-TFC-051
2-6
Section 2 Installation Instructions
Line Set Installation
Ice
Machine
P520 and
P530
*Line Set Suction Line Liquid Line
Line Set*
PT-20-R404A
PT-35-R404A
PT-50-R404A
Maximum line set distance is 50′ per ice machine.
Maximum line set rise is 35′ per ice machine.
Maximum line set drop is 35′ per ice machine.
Any line set routed below the condensing unit is
considered drop.
Any line set routed above the condensing unit is
considered rise.
PT 1/2” (12.7 mm) 1/4” (6.4 mm)
ROUTING PRE-CHARGED LINE SETS
General
Remote condensing unit installations consist of
vertical and horizontal line set distances between
the ice machine and the condensing unit. When
combined, they must fit within approved
specifications. The following guidelines, drawings
and calculation methods must be followed to verify
a proper installation.
35’ MAXIMUM
DISTANCE
Line set rise, drop, horizontal runs (or combinations
of these) in excess of the stated maximums will
exceed compressor start-up and design limits. This
will cause poor oil return to the compressor.
50’ MAXIMUM
DISTANCE
35’ MAXIMUM
DISTANCE
SV1722B
50’ MAXIMUM
DISTANCE
SV1722C
2-7
Installation Instructions Section 2
Guidelines for Routing Pre-Charged Line Sets
First cut a circular hole in the wall or roof for tubing
routing. It is recommended that the line set end with
the service valves be connected to the ice machine.
The straight end will connect to the condensing unit
manifold.
Follow these guidelines when routing the refrigerant
lines. This will help insure proper performance and
service accessibility.
1. When installing horizontal runs refrigerant oil
must be free to return to the condensing unit.
Pitch all suction lines in the direction of
refrigerant flow (toward condensing unit),
allowing a minimum of ½” drop per 10’ of
horizontal run.
2. Route excess tubing in a supported downward
horizontal spiral as shown below. Do not coil
tubing vertically.
3. Insulate all suction lines, suction line shut-off
valves and components, to prevent condensation
and sweating.
If a line set has a rise followed by a drop, another
rise cannot be made. Likewise, if a line set has a
drop followed by a rise, another drop cannot be
made.
LENGTHENING OR REDUCING LINE SET LENGTHS
In most cases, by routing the line set properly,
shortening will not be necessary. When shortening
or lengthening is required, do so before connecting
the line set to the ice machine or condensing unit.
This prevents the loss of refrigerant.
The quick connect fittings on the line sets are
equipped with Schraeder valves. Use these valves to
recover any vapor charge from the line set. When
lengthening or shortening lines, follow good
refrigeration practices and insulate new tubing. Do
not change the tube sizes. Evacuate the lines and
place about 5-oz (142g) of vapor refrigerant charge
in each line.
CAUTION
4. Keep outdoor refrigerant line runs as short as
possible.
SUPPORT EXCESS TUBING
IN A DOWNWARD
HORIZONTAL SPIRAL
SV1204A
2-8
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