Scotsman Eclipse Series, Eclipse 1600, Eclipse 2000, Eclipse 1300 Technical Training Manual

30 Inch Wide Eclipse

Modular Cubers

Technical Training

Technical Training

Eclipse 1300 --

Eclipse 1300

• Ice Making Head

– CME1386
– CME1686

• Compressor Package

– CP1316
– CP2086

2000

2000

• Condenser

– ERC1086
– ERC2086

The Eclipse System

The Eclipse System

• The remote system is made up of three parts:

– Ice Making Section or Head Unit - 115 volt
– Compressor Package - 208-230 volt
– AC Condenser - 208-230 volt

• Flexible Modular System

– CME1386 or CME1686 can connect to CP1316
– ERC1086 can be used on 1000, 1300 or 1600 systems
– All are R-404A systems

Ice Making Section

Ice Making Section

• 30” Wide Head Units

• CME1386 or

CME1686 or
CME2086

– Remote Low Side
–CM3technology

• Water and Control

Systems

• Rotomolded freezing

compartment

• Refrigerant

Line
Connections

– Vapor

Ice Making Section

Ice Making Section

Suction

Vapor

– Liquid
–Suction

Liquid

• Ice making

compartment

• Five or Six

evaporators

– CME1386 has 5
– CME1686 and

CME2086 have 6

Ice Making Section

Ice Making Section

• Purpose: Opens

during harvest to
allow vapor to enter
the evaporators

• 24 volt coil

Vapor Inlet Valve

Vapor Inlet Valve

• Single externally

equalized valve

– Meters refrigerant

through a
distributor

One TXV

One TXV

TXV

• 115 volt pump

• Same for all three

• Pedestal type

• Pump motor

separated from
reservoir

Water Pump

Water Pump

– Keeps motor drier
– Motor cap keeps

condensation off
motor

™

• AutoIQplus

• Uses sensors for

– ice harvest,
– bin full indications
– water reservoir

temperature

– water level

Controller

Controller

• Controls freeze and

harvest cycles

• Transformer 115

to 24, 85 VA

• Purge valve timer

• Control wire

connection
nearby

CME Electrical Box

CME Electrical Box

– Wire routes to

compressor
package

– Controls

contactor and
solenoid valves

Box purposely mounted at an angle

Evaporator Covers

Evaporator Covers

Freezing Compartment

Freezing Compartment

Front Ice Sensor

Cube Deflector

Water Trough

• Two sensors

– Water

• In pump discharge hose

• Used to check water temp for anti-slush and

refrigeration system operation

– Liquid

Temperature Sensors

Temperature Sensors

• Used to determine which pre-set time for first harvest

cycle

– Lower temperatures = longer first harvest cycle

Liquid Line

• Opens to add water

and fill reservoir

– Adds water during

harvest

– Fills at beginning of

freeze

– Refills once more

Inlet Water Valve

Inlet Water Valve

during freeze

• Opens to drain the

reservoir during
harvest

• Controlled by purge

valve timer

Purge Valve

Purge Valve

• Infrared sensors

– Located at the ice

outlet port
– Create a light curtain
– Harvesting ice triggers

the sensor

Ice Sensors

Ice Sensors

• CME1386, CME1686

and CME2086 are all
equipped with a bin
thermostat.

• Thermostat routes

through hole in base.

Bin Thermostat

Bin Thermostat

• Thermostat bulb must

be mounted to the
bracket

• The bracket mounts

to the bottom of the
ice machine

Bin Thermostat

Bin Thermostat

• Two models

– CP1316

• Reciprocating compressor

– CP2086

• Scroll compressor

Compressor Package

Compressor Package

Condenser Bypass Valve

Low Side
Access Valve

CP Unit

CP Unit

Headmaster

CPR Valve

Receiver

High
Pressure Cut
Out - Auto
Reset

Access Valves

Access Valves

Low Side: Compressor Suction
High Side: Compressor Discharge

Receiver Liquid Outlet

Crankcase Pressure Regulator

Crankcase Pressure Regulator

• CPR valve restricts

compressor dome
pressure during
harvest

– 55 to 60 PSIG
– Pre-set - don’t adjust

it!

Condenser Bypass Valve

Condenser Bypass Valve

• Normally Closed, opens during harvest

• Bypasses condenser coil and directs discharge

gas to vapor line

• Maintains discharge

pressure during
freeze

• Active at any temp

o

below 70

– Rated at 217 PSIG,

freeze cycle pressure

F.

Headmaster

Headmaster

may be between 220
and 250 during cold
ambient operation

Liquid Inlet Valve

Liquid Inlet Valve

• Normally Open, closes

during harvest

• Controls liquid flow

into receiver

• Isolates refrigerant in

condenser during
harvest

• Improves cycle time

Receiver

Receiver

• Shipped with system charge

• Three ports

– Liquid inlet
– Liquid outlet
– Vapor outlet

Liquid Out

Liquid In

Vapor Out

• Toggle switch controls

condensing unit

• Control Wire

connection from Ice
Making Section to
control the system

Electrical Box

Electrical Box

Toggle Switch

• Electrical power

connected at contactor

• Remote condenser fan

connects at contactor

Control Wire Connection

• Scroll compressor

• Three Phase

– Supply wiring can make it

start backwards

– To fix, switch two power leads

• Single Phase

CP2086

CP2086

– Always starts with the correct

rotation

– Can reverse after power

interruption

– Time delay relay in circuit to

prevent reversal

CP2086 Single Phase

CP2086 Single Phase

• Compressor protection

circuit

– 24 volt transformer
– 24 volt relay
– Time Delay Relay

• Power interruption of as

little as 15 milliseconds

Transformer

causes relay to shut
compressor off for 30
seconds

• Compressor then

restarts

Relay

Time Delay Relay

• Oil sight glass and

oil drain / fill port

• Don’t add oil!

– Oil level will

change during
each cycle

– Ranges between

Scroll Compressor

Scroll Compressor

1/3 & 1/2 full

Condensers

Condensers

• Two models - ONLY for Eclipse

– ERC1086 - used with CP1386 and CP1686
– ERC2086 - only used with CP2086

• No headmaster in condenser

– Headmaster is in CP unit

• Swivel nut connections for CP unit

– Don’t connect these condensers to a regular remote!

• Three systems,

single and three
phase for each

– 1300
– 1600
– 2000

• Must match

System Installation

System Installation

components to
create system

• 1300 -

– CME1386, CP1316, ERC1086

• 1600 -

– CME1686, CP1316, ERC1086

• 2000 -

– CME2086, CP2086, ERC2086

System Installation

System Installation

• CP units may also be connected to approved

central condenser coil using tubing kit RTE10

– Coil must NOT have headmaster

Equipment Location

Equipment Location

• CME can be above or below

condensing unit

– If above, limit is 15 feet

• Pre-charged lines are used

– 3 tubes per set
– 20, 50 and 75 foot only
– No extra refrigerant charge required
– S trap required when condensing

unit is over 20’ above ice making
head

Other Configurations

Other Configurations

Approved Central Condenser Coil

CP Unit

RTE10 Line Set

Ice Making Head

3RTE Line Set

Condensing Unit

Condensing Unit

• Modular system - connect

CP to ERC

• Assemble on roof or ground

• ERC has back legs and two

braces

– Assemble legs and braces to

condenser

• Connect wires to junction

box

• Place ERC on back of CP -

lip on CP holds ERC up

• Fasten CP to ERC

• Connect liquid and

discharge line
connections

• Route wire to CP

control box and

Condensing Unit

Condensing Unit

connect to contactor

Quick Connects

Quick Connects

Partial Assembly, One Thread Showing

Status: Not Ready, diaphragms partially pierced

Quick Connects

Quick Connects

Partial Assembly, Threads are Flush

Status: Not Ready, diaphragms pierced but connection not leak
proof.

Quick Connects

Quick Connects

Completed Assembly

Status: Ready, diaphragms fully pierced and joint is leak proof

• Three tubes

• Reversible

• CME routing

determines which end
goes to CME

– Out the back - use

Line Set

Line Set

double-bend ends at
CME

– Out the top - use single

90 degree ends at CME

Ends for out the
CME top

Ends for
out the
CME
back

Line Set Installation

Line Set Installation

• Route lines in two groups

– Liquid and Vapor
– Suction separately for ease of routing

• 3/4” tube requires careful handling

– Check for holding charge before installation
– Route control wire with line set
– Only shorten if necessary

• Do before connections are made!

• Purge with nitrogen while brazing

– Schraders at both ends for purging

• Evacuate to 300 microns or less

• Add holding charge if connecting later

• Flush against wall

capability

• Drains left or back

Install CME

Install CME

Vent Tube

• Route refrigeration

tubes out the top for
flush installations

• 115 volt unit, cord

provided

Drain Fitting

• Attach water inlet

• Attach drain - 3/4”

• Connect refrigerant

tubing. Add foam
tape/cork tape to
suction line nut

Utility Connections

Utility Connections

• Secure unit at sides

or back with
provided strap-clips

• Connect precharged

lines

– Use refrigerant oil
– Use two wrenches to

prevent quick­connect diaphragm
damage from rotating

Condensing Unit

Condensing Unit

tube

• Connect control wire

• Connect power,

check voltage

• Check installation

– Power
– Water
–Drain
– Tube Routing

• No soak out needed

Initial Start Up

Initial Start Up

– Plug in CME unit
– Check EEPROM code
– Push Freeze to start

• CME unit

– Opens & closes Purge Valve
– Fills with water
– Switches on Pump
– Switches on Condensing Unit

• Compressor and fan begin to operate

Start Up

Start Up

• Adjustments

– Purge is adjustable

Operation --

Operation

• CM3control system

– Water level sensor for

• Reservoir water fill

• Freeze cycle termination

– Ice sensors to sense

• Ice harvest

– Controller determines cycles and operates

Control System

Control System

components

• Uses water level to determine freeze cycle length

• Uses length of time for ice to fall to determine next

harvest

• Uses thermostat to determine bin full

• Water level sensor

– Two photo-electric eyes

in housing

– Top eye blocked tells

controller water level is
low

– Bottom eye blocked

Control Details

Control Details

tells controller water
reservoir is full

Control Details

Control Details

• Ice sensors - photo-

eyes

– Located at bottom of

ice drop zone

– One side is an emitter,

the other a detector

– Creates a light curtain

that can sense groups
of cubes falling during
harvest

Operation --

Operation

Freeze

Freeze

• Similar to conventional remote ice cubers

– Condensing unit forces liquid refrigerant to the ice

making section

• TXV meters refrigerant all evaporators

– At a pre-determined water temperature, the pump

stops for 30 seconds
– As ice forms on the evaporators, the water level drops
– About half way through the cycle the water reservoir

re-fills
– The next time the water level drops to the point where

the top of the slot in the float stick blocks the eyes, the

system goes into the harvest cycle

Operation --

Operation

Harvest

Harvest

• Eclipse features Cold Temperature Harvest

– Condensing Unit may be located outside

• Temperature Range between -20 and 120 F.

• Receiver is with the condensing unit

• Vapor line connects discharge gas and receiver vapor to

vapor inlet line in ice making section

• High vapor flow rates achieved with no compressor

impact due to use of CPR valve

• Vapor contains latent heat - even at sub-zero

temperatures

• Condensing vapor in the evaporators transfers the heat

• Evaporators warm up and ice is released

Operation --

Operation

• Vapor inlet valve opens

• Condenser bypass valve opens

• Receiver inlet valve closes

• Purge valve opens

• Pump stops for a time then restarts to purge the

reservoir of water

Harvest Details

Harvest Details

• Purge valve closes after 40 seconds

• Inlet water valve opens for a few seconds to add

water to the reservoir for harvest assist

• Harvest continues until the controller stops it

Operation --

Operation

• Controller begins timing harvest

• Ice falling interrupts the signal from the ice sensor

emitter to the receiver

– The time of that interrupt is recorded by the controller
– The last time the controller receives an interrupt signal

is saved as the cube release time

Harvest Control

Harvest Control

– Extra time is calculated from the actual cube release

time

Measured Cube Release Time + Calculated Extra Time =

Harvest Time

Operation

Operation

• Freeze Cycle Time (90/70):

– 1300 - 16 to 17 minutes
– 1600 - 17 to 18 minutes
– 2000 - 12 to 13 minutes

• Harvest Cycle Time (90/70)

– 1300 - 2 minutes
– 1600 - 1 1/2 to 2 minutes
– 2000 - 2 1/2 minutes

Condensing Unit

Condensing Unit

Condenser Bypass Valve

Headmaster

Compressor

CPR

Liquid
Inlet
Valve
(N.O.)

Rec
.

Ice Making Section

Ice Making Section

Vapor Inlet Valve

Distributor Tubes

Suction

Vapor Liquid

TXV

Distributor

Evaporators

• Freeze Cycle

– Rapid Pull Down to

between 50 and 40
PSIG

– Gradual Pull Down to

• 1300 30 to 34 PSIG

• 1600 35 to 37 PSIG

System Pressures

System Pressures

• 2000 23 to 25 PSIG

just before Harvest

– Pressures at CP unit or

CME will be the same
during Freeze

2000 lb model, end of freeze

• Harvest Cycle

– At the ice making

section, low side
pressure rapidly
increases to 90 - 95
PSIG or higher in hot
ambient conditions

System Pressures

System Pressures

– At the CP unit

compressor access
valve, dome pressure
is limited by the CPR
valve to 55 - 60 PSIG
during harvest

• CP Unit

– Discharge during low

ambient freeze will be
about 240 PSIG

– Discharge during harvest

will be about 100 PSIG

– High Pressure Cut Out

System Pressures

System Pressures

opens at 450, closes at
350 PSIG

Maintenance

Maintenance

• De-lime with Scotsman Ice Machine Cleaner

– Push & release clean button
– Pour in 24 ounces of ice machine cleaner
– Clean for 10 minutes, then push and release clean

button again, wait 20 minutes and shut unit off

• Check distributors for scale build up

Service Diagnosis

Service Diagnosis

• What happens if?

• Vapor Inlet Valve Does

Not Open

– Vapor line hot
– Discharge pressure

increases

– Low side pressure does

not change

– No ice release - large

slabs of ice

– 2 blink refrigeration light

Service Diagnosis

Service Diagnosis

• What happens if?

• Control wire becomes

unplugged

– CP unit does not

operate

– Exceeds maximum

freeze time

• Controller shows

continuous
refrigeration diagnostic
light

• What happens if?

• Condenser by pass

valve does not open

– High pressure cut out

opens

• Note: High discharge

pressure during

Service Diagnosis

Service Diagnosis

harvest will not be
present at liquid
connection

– Ice may release, but

slowly

• What happens if?

• Receiver inlet valve

does not close during
harvest

– Very little change

• If it sticks closed

Service Diagnosis

Service Diagnosis

– Hi discharge pressure

cut out opens

– Controller shows

continuous diagnostic
light

Service Diagnosis

Service Diagnosis

• What happens if?

• Headmaster is stuck in

bypass

– Very little liquid flow to

TXVs
– Long freeze cycle
– Controller shows

continuous refrigeration

diagnostic light

Service Diagnosis

Service Diagnosis

• What happens if?

• There is a refrigerant leak

– No change until refrigerant level drops below the

operational threshold for the ambient

• Headmaster will try to maintain minimum discharge

pressure - but will be hissing as gas flows through

• Ice formation will be poor

• Low capacity/long freeze cycle will result

– Add charge to confirm, if ice making resumes with

normal discharge pressure there is a leak

Service Diagnosis

Service Diagnosis

• What happens if?

• There is no water to the ice making section

– Water is part of the recipe for ice!
– Controller will stop unit operation but retry filling every

20 minutes until water is restored

• What happens if?

• The purge valve

leaks through

– May result in small

cubes

– Short freeze cycle

Service Diagnosis

Service Diagnosis

– May have long

harvest cycle

• What happens if?

• The inlet water

valve leaks through

– Keeps adding water

(heat load) to
reservoir

Service Diagnosis

Service Diagnosis

– Result is a long

freeze cycle

Service Diagnosis

Service Diagnosis

• What happens if?

• The condenser fan stops

– CP unit’s hi pressure cut out will open
– Maximum freeze time will be exceeded
– CME unit will shut system off
– Controller will display continuous refrigeration

diagnostic light

• What happens if?

• The CPR valve fails

– Pressure during harvest will not be at the pre-set point

• 55 to 60 PSIG

– Will not hold an adjustment
– No external symptom

Service Diagnosis

Service Diagnosis

• CPR setting should be checked if compressor is

replaced

Service Diagnosis

Service Diagnosis

• What happened if?

• The controller is showing a one blink refrigeration

diagnostic light

– This indicates that the ice harvest was very slow and

the controller timed-out on maximum harvest time
– Ice was sensed by the control system
– Likely causes include

• Beginning to freeze up

Service Diagnosis

Service Diagnosis

• What happened if?

• The controller is showing a two blink refrigeration

diagnostic light

– This indicates that the ice harvest was very slow and

the controller timed-out on maximum harvest time
– Ice was NOT sensed by the control system
– Likely causes include

• Freeze up

• Vapor inlet valve did not open

• Ice sensor can’t “see” ice well

Service Diagnosis

Service Diagnosis

• What happened if?

• The controller is showing a continuous

refrigeration diagnostic light

– Maximum freeze time exceeded
– Dirty condenser coil
– Fan motor inoperative

Service Diagnosis

Service Diagnosis

• What happened if?

• The controller is showing a two blink water

diagnostic light

– Slow or no water fill

• Possible clogged water filters

– Low water level - leaks out
– Water level sensor not working or harness connection

poor

Service Diagnosis

Service Diagnosis

• What happened if?

• The controller is showing both diagnostic lights

on continuously

– This indicates that the temperature sensors are not

working or not plugged in. They need to be plugged
back in or replaced.

– The ice machine will operate without the thermistors

working, but it is limited in its diagnostics that way

Summary

Summary

• Eclipse is a three part ice making system

– Ice making head
– Compressor Package
– Condenser

• There are 6 systems

– 600
– 800
– 1000
– 1300
– 1600
– 2000