icetro IM Series User manual

Revision Date: 1/24/22
IM-Series
Air/Water/Remote Ice Machines
Technician’s Handbook

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Safety Notices
Read these precautions to prevent personal injury:
• Read this manual thoroughly before operating,
installing or performing maintenance on the
equipment. Failure to follow instructions in this manual
can cause property damage, injury or death.
• Routine adjustments and maintenance procedures
outlined in this manual are not covered by the
warranty.
• Proper installation, care and maintenance are essential
for maximum performance and trouble-free operation
of your equipment.
• Visit our website www.icetroamerica.com for manual
updates.
• This equipment contains high voltage electricity and
refrigerant charge. Installation and repairs are to be
performed by properly trained technicians aware of
the dangers of dealing with high voltage electricity and
refrigerant under pressure. The technician
must also be certified in proper refrigerant handling
and servicing procedures. All lockout and tag out
procedures must be followed when working on this
equipment.
• This equipment is intended for indoor use only. Do not
install or operate this equipment in outdoor areas.
• As you work on this equipment, be sure to pay close
attention to the safety notices in this handbook.
Disregarding the notices may lead to serious injury
and/or damage to the equipment.

Warning
Follow these electrical requirements during installation
of this equipment.
• All field wiring must conform to all applicable
codes of the authority having jurisdiction. It is
the responsibility of the end user to provide the
disconnect means to satisfy local codes. Refer to
rating plate for proper voltage.
• This appliance must be grounded.
• This equipment must be positioned so that the plug
is accessible unless other means for disconnection
from the power supply (e.g., circuit breaker or
disconnect switch) is provided.
• Check all wiring connections, including factory
terminals, before operation. Connections can
become loose during shipment and installation.
• For a cord-connected appliance, the following must
be included:
• Do not unplug by pulling on cord. To unplug,
grasp the plug, not the cord.
• Unplug from outlet when not in use and before
servicing or cleaning.
• Do not operate any appliance with a damaged
cord or plug, or after the appliance malfunctions
or is dropped or damaged in any manner.
Contact the nearest authorized service
facility for examination, repair, or electrical or
mechanical adjustment

Warning
Follow these precautions to prevent personal injury
during installation of this equipment:
• Installation must comply with all applicable
equipment fire and health codes with the authority
having jurisdiction.
•To avoid instability the installation area must be
capable of supporting the combined weight of the
equipment and product. Additionally the equipment
must be level side to side and front to back.
• Use appropriate safety equipment during
installation and servicing. Two or more people are
required to lift or move this appliance to prevent
tipping and/or injury.
• Do not damage the refrigeration circuit when
installing, maintaining or servicing the unit.
• Connect to a potable water supply only.
• This equipment contains refrigerant charge.

Warning
Follow these precautions to prevent
personal injury while operating or
maintaining this equipment.
•Objects placed or dropped in the bin can affect
human health and safety. Locate and remove any
objects immediately.
•Never use sharp objects or tools to remove ice or
frost as they can damage the evaporator.
•Do not use mechanical devices or other means to
accelerate the defrosting process. Instead use the
'Forced Harvest' feature explained in this
handbook.
DANGER
Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/
modified from that of original manufactured
specifications. This appliance is not intended
for use by persons (including children) with
reduced physical, sensory or mental capabilities,
or lack of experience and knowledge, unless
they have been given supervision concerning
use of the appliance by a person
responsible for their safety. Do not allow children
to play with, clean or maintain this appliance
without proper supervision.

DANGER
Follow these precautions to prevent personal injury
during use and maintenance of this equipment:
• It is the responsibility of the equipment owner to
perform a Personal Protective Equipment Hazard
Assessment to ensure adequate protection during
maintenance procedures.
• Do Not Store Or Use Gasoline Or Other Flammable
Vapors Or Liquids In The Vicinity Of This Or Any
Other Appliance.
• Never use flammable oil soaked cloths or
combustible cleaning solutions for cleaning.
• All covers and access panels must be in place and
properly secured when operating this equipment.
• Risk of fire/shock. All minimum clearances must be
maintained. Do not obstruct vents or openings.
• Failure to disconnect power at the main power
supply disconnect could result in serious injury or
death. The power switch DOES NOT disconnect all
incoming power.
• All utility connections and fixtures must be
maintained in accordance with the authority having
jurisdiction.
• Turn off and lockout all utilities (gas, electric, water)
according to approved practices during maintenance
or servicing.
• Units with two power cords must be plugged
into individual branch circuits. During movement,
cleaning or repair it is necessary to unplug both
power cords.

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Table of Contents
General Information
How to Read a Model Number .............................15
How to Read a Serial Number ..............................16
Ice Cube Sizes ...........................................................17
Model Numbers ........................................................18
Installation
Ice Deflector ......................................................19
Location of Ice Machine .........................................20
Clearance Requirements ........................................20
Ice Machine Heat of Rejection .............................21
Installation on a Bin ................................................22
Ice Machine on a Dispenser Installation ............22
Lineset Applications ................................................23
Remote Condenser
Calculating Allowable Line Set Distance
Calculating Line Set Distance
..........................................24
......25
.........................26
Tightening Remote Fittings
............................27
Remote Ice Machine Usage with
Non-Icetro Multi-Circuit Condensers .................28
Headmaster Valve ...........................................29
Refrigerant Charge .................................................30
Remote Condenser Internal Volume .................31
Maintenance
Cleaning and Sanitizing .........................................35
General ..............................................................35
Cleaning/Sanitizing Procedure .....................36
Preventative Maintenance Cleaning
Procedure ..........................................................36
Exterior Cleaning ..............................................36
Visual Inspection Checklist ..................................32
Water System Checklist ........................................33
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Table of Contents
Cleaning/Sanitizing Procedure ...........................37
Cleaning Procedure .........................................37
Removal from Service/Winterization ................43
Operational Checks .................................................48
Sanitizing Procedure .......................................39
Parts Removal for Cleaning/Sanitizing .........41
Air-Cooled Ice Machines
Water-Cooled Ice Machines
.................................43
...........................44
Operation
General ..............................................................48
Ice Thickness Check .........................................49
FND Timeouts ...................................................50
Sequence of Operation ...........................................51
Self Contained Air or Water Cooled ..............51
Energized Parts Chart Self Contained
Models ...............................................................55
Remote Condenser .........................................57
Energized Parts Chart Remote Models ........61
Error Codes ................................................................63
Troubleshooting
Er_1 .....................................................................63
Er_3 .....................................................................63
Er_11 ...................................................................64
Er_12 ...................................................................64
Er_13 ...................................................................64
Er_14 ...................................................................65
Er_15 ...................................................................65
Er_16 ...................................................................65
Er_17 ...................................................................66
Er_18 ...................................................................66
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Table of Contents
Troubleshooting Error Codes .............................67
Component Check Procedures
Er_1 ....................................................................67
Er_3 ....................................................................68
Er_11 ..................................................................69
Er_12 ..................................................................70
Er_13 ..................................................................71
Er_14 ..................................................................72
Er_15 ..................................................................73
Er_16 ..................................................................74
Er_17 ..................................................................75
Er_18 ..................................................................76
Ice Production Check ..............................................77
Ice Formation Pattern ............................................79
Testing the Expansion Valve ................................81
Discharge Line Temp Analysis .............................84
Freeze Cycle Discharge Temp
High Checklist ..........................................................85
Freeze Cycle Discharge Temp
Low Checklist ...........................................................86
Suction Pressure High Checklist .........................87
Suction Pressure Low Checklist ..........................88
Water Regulating Valve ......................................89
Final Analysis ..........................................................90
Harvest Problems ..................................................91
Electrical Components .........................................93
Control Board (PCB) .......................................93
Main Fuse .........................................................98
Water Level Control Circuitry .......................102
Ice Thickness Probe (Initiates Harvest) ......107
Bin Switch ........................................................99
High Pressure (HPCO) Cutout Control .......111
Fan Cycle Control ...........................................113
11
Hot Gas Valve Analysis ..........................................82

Table of Contents
Thermistors .....................................................114
Refrigeration Components .................................118
Compressor Electrical Diagnostics .............115
Diagnosing Start Components .....................117
Headmaster ....................................................118
................122
Charts
Harvest Pressure Regulating (HPR)
System Remote Condenser Only
Water Regulating Valve ................................125
Refrigerant Recover/Evacuation ......................126
Self-Contained Model Procedure ................126
Remote Condenser Model Procedure ........130
System Contamination Clean-Up ......................136
Determining Severity of Contamination ....136
Clean-Up Procedure ......................................138
....................141
Replacing Pressure Controls Without
Removing Refrigerant Charge
................................142
Liquid Line Filter Driers
Total System Refrigerant Charge ................143
Cycle Times/24-Hour Ice Production/Refrigerant
Pressure Charts ......................................................145
IM0350A(22) Series ......................................146
IM0460A(22) Series ......................................147
IM0460W Series ............................................148
IM0550A(22) Series ......................................149
IM0550W Series ............................................150
IM0680/0750A Series ...................................151
IM1100A/W Series .......................................152
IM1100R Series ............................................153
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Table of Contents
Diagrams
Wiring Diagram .....................................................155
Wiring Diagram .............................................156
Refrigeration Schematic ......................................159
PCB Layout ..............................................................157
PCB Dip Switches ...................................................158
Self-Contained Air or Water Cooled ...........159
Remote Condenser Models .........................159
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14

How to Read a Model Number
I M 0460 AH 22
Ice Machine Series
W
I
Ice Machine Type M - Modular C - Under Counter (Old) U - Under Counter (New) D - Dispenser
CONDENSER TYPE
A - Self-Contained Air-Cooled
W - Self-Contained Water-Cooled R - Remote Air-Cooled
C - Dice
H - Half Dice F - Flake N - Nugget
Full Model Number
General Information
Production
Amount (lbs)
Machine Width
Blank for 30"W machines
Cube Size
15

How to Read a Serial Number
Full Serial Number
16

Ice Cube Sizes
Dice
7/8" x 7/8" x 7/8"
2.22 x 2.22 x2.22 cm
Half Dice
3/8" x 1-1/8" x 7/8"
0.95 x 2.86 x 2.22 cm
Warning
All Icetro ice machines require the ice storage
system (bin, dispenser, etc.) to incorporate an ice
deflector.
Prior to using a non-Icetro ice storage system
with other Icetro ice machines, contact the
manufactuere to assure their ice deflector is
compatible with Icetro ice machines.
Model/Serial Number Location
These numbers are required when requesting
information from your local Icetro Distributor, service
representative, or Icetro America. 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 front and
rear of the ice machine.
On 30" wide models, the MODEL/SERIAL NUMBER
DECAL is located just behind the front panel, on the
right-hand side.
On 22" wide models, the MODEL/SERIAL NUMBER
DECAL is located on the back side of the front panel.
17

Model Numbers
AIR-WATER-REMOTE CONDENSER MODELS
Self-Contained
Air-Cooled
Self-Contained
Water-Cooled Remote
IM-0350-AC
IM-0350-AH
----
----
IM-0350-AC-22
IM-0350-AH-22
----
----
IM-0460-AC
IM-0460AH
IM-0460-WC
IM-0460-WH
----
----
----
----
----
----
IM-0460-AC-22
IM-0460-AH-22
----
----
----
----
IM-0550-AC
IM-0550AH
IM-0550-WC
IM-0550-WH
----
----
IM-0550-AC-22
IM-0550-AH-22
----
----
IM-0680-AC
IM-0680AH
----
----
----
----
IM-0750-AC
IM-0750AH
----
----
----
----
IM-1100-AC
IM-1100AH
IM-1100-WC
IM-1100-WH
IM-1100-RC
IM-1100-RH
Ice Machine Warranty Information
For warranty information visit:
http://www.icetroamerica.com/service-support
•Warranty Registration
•Warranty Procedure Form
•Warranty Claim Form
•Labor Allowance Form
Warranty coverage begins the day the ice machine
is installed.
----
----
18

Warning
PERSONAL INJURY POTENTIAL
Remove all ice machine panels before lifting.
Caution
The ice machine head section must be protected if it
will be subjected to temperatures below 32°F
(0°C). Failure caused by exposure
to freezing temperatures is not covered by
the warranty.
ICE DEFLECTOR
An ice deflector is required for all ice
machines installed on a bin.
Installation
19