Scotsman Eclipse CME686, Eclipse CME810, Eclipse CP686, Eclipse CP886, Eclipse CP1086 Technical Training Manual

• CME686

• CME810

• CP686

• CP886

Eclipse Technical Training

Eclipse Technical Training

• CP1086

In This Presentation

In This Presentation

• What Eclipse is

• Components and their functions

• Installation

• Operation

• Maintenance

• Service Diagnosis

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
– Condenser - 208-230 volt

• Flexible Modular System

– One condenser fits two compressor packages
– One ice making head fits two compressor packages
– All are R-404A systems

Ice Making Section

Ice Making Section

• CME686 or CME810

– Remote Low Side

• 22” wide by 16.5” deep

– Three evaporators
–Three TXVs
– Three check valves
–CM3technology

• Water and Control

Systems

16.5 22”

• Rotomolded freezing

compartment

• Refrigerant

Ice Making Section

Ice Making Section

Vapor

Liquid

Line
Connections

– Vapor
– Liquid
–Suction

• All on right

side

– Designed for

Drive-Up

Suction

Window
Applications

• Ice making

compartment

• Three

evaporators

– Circuited in

parallel

– No braze joints in

Ice Making Section

Ice Making Section

freezing
compartment

– Access from the

left side or top

• Purpose: Opens

during harvest
to allow vapor
to enter the
evaporators

• 24 volt coil

Vapor Inlet Valve

Vapor Inlet Valve

• Different port

size between
CME686 and
CME810

• Three internally

equalized valves

• Purpose: Control

individual
evaporator
superheats

– One valve per plate

Three

Three

TXVs

TXVs

– Promotes even

plate-to-plate ice
distribution

• Check valves

keep each TXV’s
refrigeration flow
directed to a
single evaporator

– Eliminates cross-

flow during freeze

Three Check Valves

Three Check Valves

cycle

– Each TXV outlet

must flow to one
evaporator

• 115 volt pump

• Same for both

CME686 and CME810

• 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

CME Electrical Box

CME Electrical Box

• Transformer 115 to 24, 85 VA

• Purge valve timer

• Control wire connection

nearby

– Wire routes to compressor

package

– Controls contactor and solenoid

valves

Control Wire Connection

• Provides access

when left and right
side access is
limited

• Access to:

– cascading shield
– water trough

Inspection Cover

Inspection Cover

– ice sensors

• Also covers

cascading shield
fastener

• Removal

begins with
removal of the
inspection
cover

• Then remove

the one

Cascading Shield

Cascading Shield

retaining
screw

Cascading
Shield

Cascading Shield

Cascading Shield

Evaporator Covers

Evaporator Covers

Freezing Compartment

Freezing Compartment

Water Trough

Cascading Shield

Temperature Sensors

Temperature Sensors

Liquid Line

Water Temp Sensor

Inlet Water Valve

Inlet Water Valve

• Located in right front corner

of unit

• 1.25 GPM valve

– Same one as on CME256,

CME506 and many others

• Opens to add water and fill

reservoir

– Adds water during harvest
– Fills at beginning of freeze
– Refills once more during

freeze

• Located in the front

of the unit

• 115 volt coil

• Opens to drain the

reservoir during
harvest

Purge Valve

Purge Valve

• Controlled by purge

valve timer

• Sensing position 3”

below base

• Control position

designed for
dispenser

Ice Sensors

Ice Sensors

applications

– Also works well on

bins

• Maximizes fill

without overfilling

3”

• Three models

–CP686
–CP886
– CP1086

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

Crankcase Pressure Regulato

r

Crankcase Pressure Regulato

• CPR valve restricts

compressor dome
pressure during
harvest

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

it!

• Low Side Access

valve has evaporator
pressure during
freeze, but not during
harvest

Condenser Bypass Valve

Condenser Bypass Valve

• Normally Closed,

opens during harvest

• Bypasses condenser

coil and directs
discharge gas to vapor
line

• Ported valve - same

one as CME2006

• 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 230 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

• Shipped with

system charge

• Three ports

– Liquid inlet
– Liquid outlet

Receiver

Receiver

– Vapor outlet

Liquid Inlet

Liqui
d Out

Vapor
Out

• Toggle switch controls

condensing unit

• Control Wire connection

from Ice Making Section
to control the system

• Electrical power

connected at contactor

Electrical Box

Electrical Box

Toggle Switch

• Remote condenser fan

connects at contactor

Control Wire Connection

Condensers

Condensers

• Three models - ONLY for Eclipse

– ERC680 - used with CP686 and CP886
– ERC1086 - only used with CP1086
– and a two circuit model, ERC6810

• can be used with any CP unit

• 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

– 600
– 800
– 1000

• Must match

System Installation

System Installation

components to
create system

• 600 -

– CME686, CP686, ERC680

• 800 -

– CME810, CP886, ERC680

• 1000 -

– CME810, CP1086, ERC1086

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

• Must have bin or dispenser

adapter for the CME

Two Circuit
Condenser -

ER2C6810, use

Other Configurations

Other Configurations

Approved
Central
Condenser

with 600, 800,

1000 or a mix of

any two

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

• Three tubes

• Reversible

• CME routing

determines which end
goes to CME

– Out the top - use

Line Set

Line Set

double-bend ends at
CME

– Out the back - 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

s

Two Circuit Condenser Install

s

Two Circuit Condenser Install

• Mark Lines, Wires and CP Units

• Example:

– Mark one unit “A”
– Mark line set “A” and control wire “A”
– Unit A’s pre-charged lines route to Unit A
– Unit A’s control wire connects to Unit A
– Confirm before connecting

• Start one unit at a time to confirm proper

operation and control wire routing

• Flush against wall

Install CME

Install CME

capability

• Drains left, right or back

• Water inlet and power

inlet from the top or
back

• Refrigerant line

connections back or top

• 115 volt unit, cord

provided

Water Inlet
Fitting

Drain

Fitting

• Attach water inlet

• Attach drain - 3/4”

– Unit ships with left

drain hose installed,

• Right drain hose in

plastic bag

– No vent required,

Flush Installations

Flush Installations

vent is internal

– Secure drain with

tape for ease of
mounting

Internal Vent

Place on Adapter

Place on Adapter

• Many different

adapters

– Use gasket tape at

mounting area

– Sealing area

• 22” wide x 15” deep

• Remove all panels

• Place unit

• Connect control wire

Space for Drain at Back

15”

Top View

• Add foam

tape/cork tape
to suction line
nut

• Secure unit at

sides or back
with provided

Connect Pre--

Connect Pre

Charged Lines

Charged Lines

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

• Bin full

Control System

Control System

– Controller determines cycles and operates

components

• Uses water level to determine freeze cycle length

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

harvest

• Uses ice sensor signal blockage 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

• Ice sensors - photo-

eyes

– Located at bottom of

ice drop zone

– One side is an emitter,

the other a detector

– Creates a light curtain

Control Details

Control Details

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

• Each TXV meters refrigerant to its own evaporator

– 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

• Freeze Cycle Time:

– 1000 - between 12 and 19 minutes
– 800 - between 14 and 22 minutes
– 600 - between 16 and 25 minutes

• 600’s cycle is longer in very high ambient

• Harvest Cycle Time

– 1000 - between 1 and 3 minutes

Operation

Operation

– 800 - between 1 and 3 minutes
– 600 - between 2 and 3 minutes
– Extreme low temperatures - harvest lengthens

• up to 6 minutes

Condenser

Compressor

Package

Refrigeration Schematic

Refrigeration Schematic

Ice Making Section

Condensing Unit

Condensing Unit

Condenser Bypass Valve

Headmaster

Compressor

CPR

Liquid
Inlet
Valve
(N.O.)

Rec
.

Ice Making Section

Ice Making Section

Suction Vapor Liquid

Vapor Inlet
Valve

TXVs

Check

Valves

Evaporato
rs

• Freeze Cycle

– Rapid Pull Down to

between 80 and 60
PSIG

– Gradual Pull Down to

28 - 30 PSIG just before
Harvest

System Pressures

System Pressures

– Pressures at CP unit or

CME will be the same
during Freeze

• Harvest Cycle

– At the ice making

section, low side
pressure rapidly
increases to 90 - 120
PSIG

– At the CP unit

System Pressures

System Pressures

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 225 PSIG

• Headmaster rated for 217,

there is some variation
unit to unit

– Discharge during harvest

System Pressures

System Pressures

will be about 100 PSIG

– High Pressure Cut Out

opens at 450, closes at
350 PSIG

• De-lime with Scotsman

Ice Machine Cleaner

– Push & release clean

button

– Pour in 24 ounces of IM

cleaner through handy
fill-plug in sump cover

Maintenance

Maintenance

– Clean for 10 minutes,

then push and release
clean button, wait 20
minutes and shut unit off

• Check distributors for

scale build up

Maintenance

Maintenance

Top Cover Lifts Up

Notch in Wall for Front Access

• What happens if?

• Vapor Inlet Valve

Does Not Open

– Vapor line hot
– Discharge pressure

increases

Service Diagnosis

Service Diagnosis

– 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

Service Diagnosis

Service Diagnosis

• What happens if?

• Both the solenoid valves in the condensing unit

do not work

– Very, very unlikely, but

• The discharge pressure during harvest will be about 150

PSIG

• The low side pressure during harvest will be less than 90

PSIG

• The ice will harvest slowly

• The refrigerant flowing out of the receiver will make a

whistling noise

• 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

• There are two ice making heads

–Using CM3Technology

• There are three compressor packages

• There are two single circuit condensers

• There is one two circuit condenser

• R-404A refrigerant