Ice-O-Matic CIM0320, CIM1136 Technical & Service Manual

ELEVATION SERIES CUBE ICE MAKER

CIM Modular Cubers
CIM0320 - CIM1136

Technical Service Manual

Ice-O-Matic
11100 East 45th Avenue
Denver, Colorado 80239
1-800-423-3367

1/2018

ELEVATION SERIES CIM CUBERS TABLE OF CONTENTS

AIR AND WATER COOLED UNIT INSTALLATION GUIDELINES ……………………………………………………………….….2

REMOTE UNIT INSTALLATION GUIDELINES ……………………………………………………………………………………… ..…..4

ELECTRICAL AND PLUMBING REQUIREMENTS ……………………………………………………………………………………....7

START‐UP PROCEDURES ………………………………………………………………………………………………………………….….…9

SEQUENCE OF OPERATIONS ………………………………………………………………………………………………………….….….10

CONTROL BOARD …………………………………………………………………………………………………………………………….…..24

CONTROL BOARD LED SEQUENCE …………………………………………………………………………………………………….… .27

BUTTON FUNCTION ………………………………………………………………………………………………………………………….….33

SUMP ……………………………………………………………………………………………………………………………………………….….34

HIGH AND LOW FLOAT SWITCHES AND HOUSING …………………………………………………………………………….…36

WATER PUMP ………………………………………………………………………………………………………………………………….…..39

WATER DISTRIBUTION TUBE ………………………………………………………………………………………………………………..41

WATER INLET VALVE …………………………………………………………………………………………………………………………...43

PURGE VALVE …………………………………………………………………………………………………………………………………......44

HARVEST ASSIST ASSEMBLY / HOT GAS VALVE …………………………………………………………………………………….45

EVAPORATOR …………………………………………………………………………………………………………………………………..….46

MAGNETIC CURTAIN SWITCH ……………………………………………………………………………………………………….…..…50

HIGH PRESSURE CUT‐OUT / FAN CYCLE CINTROL …………………………………………………………………………….…..51

HIGH TEMPERATURE SAFETY ……………………………………………………………………………………………………….……...52

FAN MOTOR (AIR COOLED) ………………………………………………………………………………………………………………....53

REFRIGERATION SECTION ……………………………………………………………………………………………………………….…...54

GENERAL MAINTENANCE ……………………………………………………………………………………………………………….…….56

CLEANING AND SANITIZING ……………………………………………………………………………………………………………….…57

CABINET CARE ……………………………………………………………………………………………………………………………..........59

WINTERIZING ……………………………………………………………………………………………………………………………………….60

TECHNICAL SPECIFICATIONS ………………………………………………………………………………………………………………..61

WIRING DIAGRAMS ……………………………………………………………………………………………………………………………..62

INTRODUCTION …………………………………………………………………………………………………………………………….…….…1

ELEVATION SERIES CIM CUBERS TABLE OF CONTENTS

ELEVATION SERIES CIM CUBERS INTRODUCTION

Energy Efficiency

Ice-O-Matic has partnered with ENERGY STAR since 2004 to ensure our customers receive the most
efficient ice machines for your investment dollar. Ice-O-Matic is committed to the continuous
improvement in both energy efficiency and productivity thereby delivering the best value in energy
efficient ice machines money can buy.

For a detailed list of ENERGY STAR qualified Ice-O-Matic ice machines, go to:

http://www.iceomatic.com/Products/Sales-Literature/#

Freight Claims

Inspect Promptly

This merchandise has been carefully inspected
and packed in accordance with the carrier’s
packing specifications. Responsibility for safe
delivery has been assumed by the carrier. If
loss or damage occurs, you as the consignee
must file a claim with the carrier and hold the
container for carrier’s inspection.

Visible Loss or Damage

Any external evidence of loss or damage must
be fully described and noted on your freight
bill or express receipt and signed by the
carrier’s agent. The claim should be filed on a
form available from the carrier.

Concealed Loss or Damage

If loss or damage does not appear until
merchandise has been unpacked, make a
written request for inspection by the carrier
within 5 days of the delivery date, then file a
claim on a form from the carrier.

FILE CLAIMS WITHOUT DELAY

DO NOT RETURN DAMAGED GOODS

TO ICE-O-MATIC

How to use this Manual

Ice-O-Matic provides this manual as an aid to the Refrigeration Service Technician for installation and
maintenance of the CIM cube ice machines. Do not attempt to perform installation, start-up or maintenance
unless you have read and fully understand this manual.

Ice-O-Matic ice-makers and dispensers are not approved for outdoor installation.

CIM Cubers contain R404A Refrigerant.

To find a Service Provider, please reference our “Find a Service Technician” tab at www.iceomatic.com

Keep this manual for future reference.

The CIM Series Service Parts Manuals are available separately.

WARNING

Always disconnect electrical power and shut off water supply whenever maintenance or repairs are

performed on the ice machine and related equipment.

CAUTION

Always wear protective eye wear whenever maintenance or repairs are performed on the ice

machine and related equipment.

Ice-O-Matic Warranty

Every Ice-O-Matic ice maker is backed by a warranty that provides both parts and labor coverage. To view

the warranty details, register products, or check your warranty status visit the “Warranty and Water Filter

Registration” page on www.iceomatic.com

1

ELEVATION SERIES CIM CUBERS INSTALLATION GUIDELINES

Installation Guidelines

For proper operation of the ice machine, the
following installation guidelines must be followed
by a qualified refrigeration technician

. Failure to
do so may result in loss of production capacity,
premature part failures, and may void all

warranties.

Reference the installation parameters prior to
installing the machine. Ice-O-Matic assumes no
responsibility for improperly installed equipment.
Excessive time required for service or time for
units requiring removal for service of inaccessible
equipment will be the sole responsibility of the
equipment owner.

Ambient Operating Temperature

Minimum operating temperature:
50°F (10°C)
Maximum operating temperature:
100°F (38°C) (60 Hz.), 110°F (43°C) (50 Hz.).

Note: Ice-O-Matic ice-makers and dispensers are not

approved for outdoor installation

Incoming Water Supply

WARNING: Connect to unheated potable water

supply only!

(See Electrical and Plumbing diagrams for line sizing)

Minimum incoming water temperature:

40°F (4.5°C)

Maximum incoming water temperature:

100°F (38°C)

Minimum incoming water pressure:

20 psi (1.4 bar, 0.138MPa)

Maximum incoming water pressure:

80 psi (5.5 bar, 0.552MPa)

machine can be pulled away from the wall if
service is needed.

Water Filtration/Treatment

A water filter system should be installed with the
ice machine. Refer to Ice-O-Matic water filter
specification sheet.

Reverse Osmosis (RO) water can be very acidic and
can attack the evaporator and other metal in the ice
machine. Because the RO process removes all
minerals and metals from the water it can promote the
faster growth of microbial mold and slime. If RO
water is used, Ice-O-Matic recommends the water pH
is verified to be a neutral 7.0 to minimize the
corrosive effects. Incorrect cleaners, sanitizers, and
RO water that does not have a neutral pH could void

the machine’s warranty.

Drains

All drain lines must be installed per local codes.
Flexible tubing is not recommended. Route bin
drain, purge drain and water condenser drain
individually to a floor drain. The use of condensate
pumps for draining water is not recommended.
Ice-O-Matic assumes no responsibility for
improperly installed equipment.

Note: The Purge Drain Fitting is plastic: DO

NOT apply heat to purge drain area; DO NOT

over-tighten drain connection.

The purge drain should be a minimum of 3/4 inch
O.D. tubing. The condenser drain on water cooled
units should be 1/2 inch O.D. minimum. The drain
line fittings on Ice-O-Matic bins are 3/4 FPT. The
bin drain should be a minimum of 3/4 inch O.D.
Cold water drains should be insulated to prevent
condensation from forming.

Note: if water pressure exceeds 80 psi (5.5 bar), a water

pressure regulator must be installed

All water supply lines must be installed per local
codes. Use 3/8 inch O.D. minimum on air cooled
machines. On water cooled machines 3/8 inch O.D.
minimum tubing must be run to the condenser. The
water supply for the machine can “T” off from the
condenser line using 3/8 inch O.D. minimum
tubing. Make 2 coils of extra tubing so that the

2

ELEVATION SERIES CIM CUBERS INSTALLATION GUIDELINES

Clearance Requirements

Self-contained air-cooled ice machines should
have a minimum of 6 inches (15cm) of clearance at
the rear, top and sides for proper air circulation and
adequate space for serviceability.
Self-contained air-cooled ice machines exhaust
air out the top and right side. There are two
alternative air exhaust options. Option A (top
exhaust bias): minimum of 6 inches (15cm) of
clearance at the rear and top of the ice machine for
proper function at maximum operating conditions.
Option B (side exhaust bias): minimum of 6 inches
(15cm) of clearance at the rear and right side of the
ice machine with a minimum of 3 inches (7.5cm)
of clearance at the top for proper function at
maximum operating conditions.

Appropriate space should be allowed for proper
serviceability of the machine. Excess time to gain

access for serviceability is not covered under

warranty.

Stacking

Ice-O-Matic does not endorse stacking ice
machines.

Dispenser Application

A thermostatic bin control kit should be installed if
the CIM Cube ice machine is placed on a
dispenser. A bin top may or may not be required
and should be secured to the dispenser.

Electrical Specifications

Refer to the serial plate at the rear of the ice
machine to make sure proper voltage and circuit
breaker size have been supplied. Make sure the
machine is on a dedicated circuit. European
installations require that the electrical supply fixed
wiring must be provided with a disconnect means
having a separation of at least 3mm in all poles.
The ice machines are provided without
electrical cord set and are designed and agency
approved to be permanently connected.

Units are not approved for GFI outlets.

Caution: Electrical connection must be made or a cord

installed by a qualified electrician

an electrical fire.

or there is danger of

an

Adjustments

Level the machine within 1/8 inch in all directions.
Check the water in the Water Sump for proper
level.
Check the ice bridge for proper thickness and
adjust on Float Switch Housing Assembly as
needed.

Check the Water Regulating Valve adjustment if
water cooled.

Secure the machine on top of the bin or dispenser.
Attach the ice machine to the bin with the
mounting straps provided with the bin or dispenser.
Insure that the back of the ice machine is flush with
the back of the bin. Proper functioning of the Bin
Door requires the door, when it is opened, to be in
a stable position.

If the ice machine is too far forward on the bin, the
opened door may not be stable, resulting in an
unexpected closing of the bin door. If the ice
machine is to be mounted on a bin or dispenser
other than an Ice-O-Matic, refer to the
manufacturers instructions for machine mounting.
Ice-O-Matic will not be responsible for damage or
injury that results from unexpected closing of the
bin door as a result of the ice machine being too far
forward on the bin.

3

ELEVATION SERIES CIM CUBERS REMOTE CONDENSER GUIDELINES

Remote Condenser Installation

For proper operation of the ice machine, the following installation guidelines must be followed. Failure to

do so may result in loss of production capacity, premature part failure, and may void all warranties.

Use the following for planning the placement of the remote condenser relative to the ice machine

Location Limits

Remote condenser location must not exceed ANY
of the following:

Maximum rise from the ice machine to the

remote condenser is 35 physical feet.

Maximum drop from the ice machine to

the remote condenser is 10 physical feet.
Physical line set maximum length is 75 ft.
Calculated

line set length maximum is 100

ft.
A m b i en t o p e ra t i n g t e m p e ra t u r e s:

-20°F (-28.9°C) to 120°F (48.9°C)

Install and attach the remote condenser to the roof
of the building using the methods and practices of
construction that conform to the local building
codes, including having a roofing contractor secure
the remote condenser to the roof.

Have an electrician connect the remote condenser
fan motor wires to the ice machine using the
junction box at the back of the machine.

Roof Attachment

Calculation Formula

Drop = dd x 6.6

(dd = drop distance (ft.))

Rise = rd x 1.7

(rd = rise distance (ft.))

Horizontal Run = hd

(hd = horizontal distance (ft.))

Calculated Line Length = Drop + Rise + Horizontal Run

Configurations that do NOT meet these
requirements must receive written authorization
from Ice-O-Matic. This includes multi-pass or rack
system remote condensers.

DO NOT: Route a line set that rises, then falls, then
rises or a line set that falls, then rises, then falls.

Remote Condenser Location

Pre-charged line sets are available in 25, 40, 45, 60
or 75 foot length to connect the ice machine to the
remote condenser. Select the best available
location, protecting the remote condenser from
extremes of dirt, dust and sun. Meet all applicable
building codes. The services of a licensed
electrician may be required.

Pre-charged Line Set Routing

CAUTION: Do not connect the pre-charged tubing
until all routing and forming of the tubing has been

completed. See the coupling instructions for

connecting information.

Each set of pre-charged tubing refrigerant lines
consists of a 3/8” diameter liquid line and 1/2 inch
diameter discharge line. Both ends of each line
have quick connect couplings, one end of the line
set has a Schrader valve connection.

Note: the openings in the building or ceiling or wall,

listed in the next step, are the minimum sizes

recommended for passing the refrigerant lines through.

Have a roofing contractor cut a minimum hole for
the refrigerant lines of 2.50 inch. Check local
codes, a separate hole may be required for the
electrical power to the condenser.

CAUTION: DO NOT KINK OR CRIMP

REFRIGERANT TUBING WHEN INSTALLING

IT.

NOTE: REMOTE LINES MUST NOT RISE AND

DROP IN THE SAME RUN.

4

ELEVATION SERIES CIM CUBERS REMOTE CONDENSER GUIDELINES

CIM Machine Model Number Remote Condenser Model Number

CIM0520/530 VRC1001B/RCA1001
CIM0525/535 VRC1061B/RCA1061

CIM0636 VRC1061B/RCA1061

CIM1126 VRC1061B/RCA1061
CIM0835/0836/0837 VRC1061B/RCA1061
CIM1135/1136/1137 VRC1061B/RCA1061

Route the refrigerant lines through the roof
opening. Follow straight line routing whenever
possible. Any excess tubing MUST remain inside
the building. Spiral the excess length of pre­charged tubing inside the building. Use a
horizontal spiral to avoid any traps in the lines.
Have the roofing contractor seal the holes in the
roof per local codes.

The following remote ice makers incorporate the Mixing Valve in the Condenser. This configuration
allows up to a 100 foot calculated remote line set run. Reference the diagram on the next page to calculate
the maximum 100 ft. line set run. Maximum actual line set run is limited to 100 ft. Add 1/4 oz. of
refrigerant for each actual foot from 75 to 100 ft. actual line set run.

CAUTION: The couplings on the sets of pre-charged

lines are self sealing when installed properly.

Carefully follow the instructions in the Remote

Condenser manual.

Verify the CIM machine is compatible with the remote condenser.

For more information contact your Ice-O-Matic distributor.

5

ELEVATION SERIES CIM CUBERS REMOTE CONDENSER GUIDELINES

Equivalent Run Calculation Examples

Formula for maximum equivalent run:

(RISE X 1.7) + (DROP X 6.6) + HORIZONTAL RUN = CALCULATED LINE RUN

NOT TO EXCEED 100 CALCULATED FEET

Rise:

(35 ft. x 1.7) + (40 ft.) = 99.5 equivalent feet line run

35 ft. rise

40 ft. horizontal

Drop:

(10 ft. x 6.6) + (34 ft.) = 100 equivalent feet line run

10 ft. drop

34 ft. horizontal

6

ELEVATION SERIES ELECTRICAL AND PLUMBING REQUIREMENTS

Electrical and Plumbing Requirements

22” CIM SERIES Common Connections

(CIM**2

Air Cooled

Please note: air-cooled units require

6”(152mm) for air intake and exhaust.

A. Ice maker potable water in,

3/8” FPT.

B. Ice maker water out,

3/4” FPT.

C. Hole for electrical connections,

7/8”.

D. Electrical junction box,

7/8”.

* A)

Water/Remote Cooled

A. Ice maker potable water in,

3/8” FPT.

B. Ice maker water out,

3/4” FPT.

C. Hole for electrical connections,

7/8”.

D. Electrical junction box,

7/8” (remote).

E. Condenser water in,

3/8” FPT (water only).

Discharge line,

1/2” male quick connect
coupling for pre-charged
line set (remote only).

F. Condenser water out,

1/2” FPT (water only).

G. Liquid Line,

3/8” male quick connect
coupling for pre-charged
line set (remote only).

(CIM**2* W/R)

7

ELEVATION SERIES ELECTRICAL AND PLUMBING REQUIREMENTS

Electrical and Plumbing Requirements

30” CIM SERIES Common Connections

(CIM**3

Air Cooled

Please note: air-cooled units require

6”(152mm) for air intake and exhaust.

A. Ice maker potable water in,

3/8” FPT.

B. Ice maker water out,

3/4” FPT.

C. Hole for electrical connections,

7/8”.

D. Electrical junction box,

7/8”.

* A)

Water/Remote Cooled

A. Ice maker potable water in,

3/8” FPT.

B. Ice maker water out,

3/4” FPT.

C. Hole for electrical connections,

7/8”.

D. Electrical junction box,

7/8” (remote).

E. Condenser water in,

3/8” FPT (water only).

Discharge line,

1/2” male quick connect
coupling for pre-charged
line set (remote only).

F. Condenser water out,

1/2” FPT (water only).

G. Liquid Line,

3/8” male quick connect
coupling for pre-charged
line set (remote only).

(CIM**3* W/R)

8

ELEVATION SERIES START-UP PROCEDURE

Start-Up Procedure

Note: Before starting the machine, make sure the

machine is level within 1/8 inch in all directions, the

bin or dispenser leg height can be adjusted by

rotating the leg foot

After verifying proper voltage, water supply,
drains and breathable air space around the unit,
press and quickly release the ON/OFF button
behind the unit front panel. The indicator light will
change from a solid red to solid blue in color.

Follow the sequence of operation described under
“Operation of CIM Series Cuber” in this manual.
Check operation of each component through the
cycle as explained in this section.

Access to Water Level Adjustment

Bridge Thickness Adjustment

Once the unit has gone through a harvest cycle,
verify the bridge thickness (3/16” thick for units
less than 400 lbs. and 1/8” for 400 lbs. and above)
across the middle of the ice slab on the second
batch produced. The ice thickness can be changed
on the Float Housing by turning the adjustment
clockwise to decrease the bridge thickness and
counter-clockwise to increase the bridge thickness.
You will hear a “click” with each adjustment. It is
recommended adjustments be made one or two
“clicks” at a time.

Model Batch Weight

Lowers Float; increases

bridge thickness

Raises Float; decreases

bridge thickness

CIM320/330 2.9-3.15 3.25-3.5 -

CIM430/520/530/630 4.9-5.15 5.5-5.8 -

CIM0830/1120/1130 6.9-7.4 7.9-8.3 8.4-8.8

Half Cube Full Cube Grande Cube

9

ELEVATION SERIES CIM CUBERS SEQUENCE OF OPERATIONS

BROWN

BLUE

VIOLET

BLACK

RED

TAN

PINK

YELLOW

= Illuminated LED

WHIT E

WHIT E

BLUE w/ WHITE

BLUE w/ RED

BLUE

12V DC Switches

Line Voltage
Components

R1 R2 R3 R4 R5 R6

SEQUENCE OF OPERATIONS

CONTROL BOARD - OFF STATUS

When power is initially applied to the unit, the LED’s on both the Push Pad and the Board POWER Button
will flash in sequence BLUE, then RED, then the WASH Button will flash YELLOW, followed by the POWER
Button LED will turn a solid RED, indicating the unit is in the OFF status as shown above.

The LED’s for the Curtain Switches (1 & 2), High Float Switch and Low Float Switch will be illuminated indi‐
cating closed circuits. Should the Curtains or Bin Thermostat (if added) be open, the unit will not start a
Freeze Cycle.

From an OFF status, the unit can start a CLEAN cycle, a FREEZE cycle or be put in the DIAGNOSTIC mode.
For Cleaning Instructions, see page 56. For more on the DIAGNOSTIC mode see page 30.

10

ELEVATION SERIES CIM CUBERS SEQUENCE OF OPERATIONS

BROWN

BLUE

VIOLET

BLACK

RED

TAN

PINK

YELLOW

= Illuminated LED

WHITE

WHITE

BLUE w/ WHITE

BLUE w/ RED

BLUE

12V DC Switches

Line Voltage
Components

R1 R2 R3 R4 R5 R6

CONTROL BOARD - FREEZE CYCLE

A quick press of the POWER button on the Push Pad or Board will start the Freeze cycle. The Water Inlet
Valve will be energized (R4 LED on Board illuminated) and water will begin flowing into the Sump. As the
water rises, the contacts in the Low Water Float will open (Switch LED off). The Water Inlet Valve will
remain energized until the High Water Float contacts open (Switch LED off). The Water inlet Valve will be
de‐energized (R4 LED on Board off).

Note: Minimum Freeze Cycle ‐ 5 minutes (from Compressor Start.)
Maximum Freeze Cycle ‐ 1 hour.

11

ELEVATION SERIES CIM CUBERS SEQUENCE OF OPERATIONS

BROWN

BLUE

VIOLET

BLACK

RED

TAN

PINK

YELLOW

= Illuminated LED

WHITE

WHITE

BLUE w/ WHITE

BLUE w/ RED

BLUE

12V DC Switches

Line Voltage
Components

R1 R2 R3 R4 R5 R6

CONTROL BOARD - COMPRESSOR START

The Hot Gas Valve will be energized (R3 on Board illuminated) for 5 seconds and the system pressures will
start to equalize.

12

ELEVATION SERIES CIM CUBERS SEQUENCE OF OPERATIONS

BROWN

BLUE

VIOLET

BLACK

RED

TAN

PINK

YELLOW

= Illuminated LED

WHITE

WHITE

BLUE w/ WHITE

BLUE w/ RED

BLUE

12V DC Switches

Line Voltage
Components

R1 R2 R3 R4 R5 R6

CONTROL BOARD - COMPRESSOR START

The Compressor will be energized (R2 on Board illuminated) and the Hot Gas Valve will remain open for 5
more seconds and then de‐energize (R3 on Board off).

13

ELEVATION SERIES CIM CUBERS SEQUENCE OF OPERATIONS

BROWN

BLUE

VIOLET

BLACK

RED

TAN

PINK

YELLOW

= Illuminated LED

WHITE

WHITE

BLUE w/ WHITE

BLUE w/ RED

BLUE

12V DC Switches

Line Voltage
Components

R1 R2 R3 R4 R5 R6

CONTROL BOARD - PRE-CHILL

The Compressor and Fan(s)/Liquid Line Solenoid (R1 and R2 LED’s on Board illuminated) are energized
and unit is now in a Pre‐Chill for 30 seconds bringing the Evaporator temperature down. Both Curtain
Switch LED’s are on showing closed curtain(s). Even though (R1) is energized the Fan Motor will only
come on once the Fan Cycle Switch closes at 250 psi of head pressure.

14

ELEVATION SERIES CIM CUBERS SEQUENCE OF OPERATIONS

BROWN

BLUE

VIOLET

BLACK

RED

TAN

PINK

YELLOW

= Illuminated LED

WHITE

WHITE

BLUE w/ WHITE

BLUE w/ RED

BLUE

12V DC Switches

Line Voltage
Components

R1 R2 R3 R4 R5 R6

CONTROL BOARD - FREEZE

The Water Pump is energized (R6 LED on Board illuminated) and water is pushed through the Water
Pump Tube and flows over the Evaporator. The High Float Switch contacts close as the water level in the
Sump drops (High Float Switch LED on Board illuminates).

15

ELEVATION SERIES CIM CUBERS SEQUENCE OF OPERATIONS

BROWN

BLUE

VIOLET

BLACK

RED

TAN

PINK

YELLOW

= Illuminated LED

WHITE

WHITE

BLUE w/ WHITE

BLUE w/ RED

BLUE

12V DC Switches

Line Voltage
Components

R1 R2 R3 R4 R5 R6

CONTROL BOARD - ANTI-SLUSH

During the first 3 cycles as the water temperature reaches 36 degrees F. the Water Pump will shut off for
20 seconds to reduce the possibility of slush developing in the Sump. After the first 3 cycles, Anti‐Slush
will only occur if the Sump water temperature reaches 28 degrees F.

16

ELEVATION SERIES CIM CUBERS SEQUENCE OF OPERATIONS

BROWN

BLUE

VIOLET

BLACK

RED

TAN

PINK

YELLOW

= Illuminated LED

WHITE

WHITE

BLUE w/ WHITE

BLUE w/ RED

BLUE

12V DC Switches

Line Voltage
Components

R1 R2 R3 R4 R5 R6

CONTROL BOARD - WATER PUMP ON

At the end of Anti‐Slush the Water Pump (R6) will be re‐energized and water starts flowing over the
Evaporator again. The unit will stay in this mode until the Low Float Switch closes on water level drop,
indicating the unit is ready to harvest.

17

ELEVATION SERIES CIM CUBERS SEQUENCE OF OPERATIONS

BROWN

BLUE

VIOLET

BLACK

RED

TAN

PINK

YELLOW

= Illuminated LED

WHITE

WHITE

BLUE w/ WHITE

BLUE w/ RED

BLUE

12V DC Switches

Line Voltage
Components

R1 R2 R3 R4 R5 R6

CONTROL BOARD - INITIATING HARVEST

When the water level in the SUMP drops to close the contacts of the Low Float Switch (LED on Board illu‐
minates) after a 5 second de‐bounce of the switch will signal the start of the Harvest Cycle.

18