Manitowoc EC Serie Instruction and safety manual

Installation Use and Care Manual
EC Series
Ice Machines
Part Number 80-1652-3
03/05

i
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

ii
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

1-1
Section 1 General Information
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.
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 Location
Model/Serial Number Location
Ice Machine
Model Number
Serial Number
MODEL/SERIAL
NUMBER PLATE
WARNING
If you do not understand the procedures or the
safety precautions that must be followed, call you
r
local service representative to perform the necessary
installation
p
rocedures for
y
ou.
MODEL/SERIAL
NUMBER PLATE

1-2
General Information Section 1
THIS PAGE INTENTIONALLY LEFT BLANK

2-1
Section 2 Installation Instructions
Section 2
Installation Instructions
Ice Machine Dimensions
ECV ICE MACHINES
SV1688B
CONDENSER WATER
OUTLET
CONDENSER WATER
INLET
ICE MAKING
WATER INLET
ICE MAKING
WATER/BIN DRAIN
ELECTRICAL INLET
6.00″
15.2CM
19.00"
48.2CM
26.00"
66CM
32.50"
82.5CM
15.25"
38.7CM
12.28"
31.2CM
10.25"
26.CM
2.12"
5.4CM
26.50"
67.3CM
3.27"
8.3CM
SV1688

2-2
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 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.
Self-Contained
Air-Cooled Self-Contained Water-Cooled
Top/Sides 203 mm* 127 mm*
Back 127 mm* 127 mm*
* NOTE: The ice machine may be built into a cabinet.
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.
Ice Machine Heat of Rejection
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 self-
contained air-cooled ice machines are installed.

2-3
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.
Checking Ice Machine Level
THREAD
LEVELING LEG
INTO BASE OF
CABINET
THREAD “FOOT”
IN AS FAR AS
POSSIBLE
SV1606

2-4
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 Maximum Fuse/Circuit
Breaker
Total Amps Maximum
Fuse/Circuit
Breaker
Total Amps
ECV100 230/1/50 15 4 15 4
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 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 coloured brown must be connected to the terminal which is marked with the
letter L or coloured red.

2-5
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.
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 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 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.

2-6
Installation Instructions Section 2
WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS
CAUTION
Plumbing must conform to state and local codes.
Location Water
Temperature Water Pressure Ice Machine Fitting Tubing Size Up to Ice Machine Fitting
Ice Making
Water Inlet 0.6°C Min. 32.2°C Max. 137.9 kPA Min. 551.5 kPA Max. 3/8” Female Pipe Thread
9.5 mm
minimum inside
diameter
Condenser
Water Inlet 0.6°C Min. 32.2°C Max. 137.9 kPA Min. 1034.2 kPA Max. 1/2” Female Pipe
Thread
12.7 mm
minimum inside
diameter
Condenser
Water Drain --- ---
1/2” Female Pipe
Thread
12.7 mm
minimum inside
diameter
Bin Drain --- ---
1/2” Female Pipe
Thread
1/2” (12.7 mm)
minimum inside
diameter
Typical Water Supply Drain Installation
V
ENT TUBING
20CM LONG
BIN DRAIN
CONDENSER WATER
INLET TUBING
1.27 CM MIN. I.D.
WATER SHUTOFF
VALVE
CONDENSER WATER
DRAIN TUBING
1.27 CM MIN. I.D. ICE MAKING WATER
INLET TUBING
.95 CM MIN. I.D.
SV1691

2-7
Section 2 Installation Instructions
Installation Checklist
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?
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?
Before Starting the Ice Machine
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.

2-8
Installation Instructions Section 2
THIS PAGE INTENTIONALLY LEFT BLANK

3-1
Section 3 Ice Machine Operation
Ice Machine Operation
Component Identification
ICE THICKNESS PROBE
DISTRIBUTION TUBE
(Q210/Q270 SHOWN)
BIN SWITCH
SIPHON CAP
FLOAT VALVE
ICE DAMPER
WATER PUMP
WATER TROUGH
SV1695A
SV1695G
CONDENSER AIR FILTER
ON/OFF/WASH
TOGGLE SWITCH
COMPRESSOR COMPARTMENT
ACCESS SCREWS
SV1686G

3-2
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.
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.
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 re-
closes and the ice machine restarts (steps 1 - 2),
provided the 3-minute delay period is complete.

3-3
Section 3 Ice Machine Operation
ECV SELF-CONTAINED ICE MACHINES
ENERGIZED PARTS CHART
ICE MAKING SEQUENCE OF OPERATION
CONTROL BOARD RELAYS RELAY
1 2 3 3A 3B LENGTH
WATER PUMP HOT GAS VALVE RELAY COIL
COMPRESSOR
CONDENSER ∗
FAN MOTOR of “ON”
TIME
INITIAL START-UP/
START UP AFTER
AUTO SHUT-OFF:
1. Pressure
Equalization
OFF
ON
OFF
OFF
OFF
15
Seconds
2. Refrigeration
System Start-up
OFF ON ON ON ON
5
Seconds
FREEZE
SEQUENCE:
3. Pre-Chill
OFF OFF ON ON ON
30
Seconds
4. Freeze
ON
OFF
ON
ON
ON
Until 7 sec.
water contact
with ice
thickness
probe
HARVEST
SEQUENCE:
5. Harvest
OFF
ON ON ON ON
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.

3-4
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.
Siphon System Check
Follow steps 1 through 6 under water level check.
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
CAP
WATER LEVEL
STANDPIPE
DRAIN
SV1689-2

3-5
Section 3 Ice Machine Operation
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.
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.
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.
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.
NOTE: Turning the adjustment 1/3 of a turn will
change the ice thickness about 1.5 mm.
Ice Thickness Check
Make sure the ice thickness probe wire and the
bracket do not restrict movement of the probe.
SV1208
3.2MM ICE
BRIDGE
THICKNESS
A
DJUSTING
SCREW
SET THE WATER LEVEL TO THE LINE
IN THE WATER TROUGH
SIPHON CAP
SV1689-2

3-6
Ice Machine Operation Section 3
THIS PAGE INTENTIONALLY LEFT BLANK

4-1
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...