Skope OD260 Manual de usuario

OD260

Service Manual

MAN800056 Rev. 1.1 April 2020

SKOPE Open Deck Chiller

OD260

SKOPE Open Deck Chiller

Service Manual

MAN80056

Rev. 1.1 April 2020

SKOPE Industries Limited reserve the right to alter specifications without notice.

is a registered trademark of SKOPE Industries Limited.

SKOPE INDUSTRIES LIMITED

Head Office

PO Box 1091, Christchurch

New Zealand

Freephone: 0800 947 5673

Fax: (03) 983 3896

E-mail: [email protected]

Website: www.skope.com

Trademark Infringement

The SKOPE trademark on this product is infringed if the owner, for the time being, does

any of the following:

• Applies the trade mark to the product after their state, condition, get-up or packaging

has been altered in any manner

• Alters, removes (including part removal) or obliterates (including part obliteration) the

trade mark on the product

• Applies any other trade mark to the product

• Adds to the product any written material that is likely to damage the reputation of the

trade mark

Notice of the above contractual obligations passes to:

• Successors or assignees of the buyer

• Future owners of the product

SKOPE OD260

Service Manual iii

CONTENTS

1Specifications

Models. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

OD260 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2Electronic Controller

Electronic Controller Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Faceplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Running the Chiller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Compressor and Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Temperature Probes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Defrost Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Messages and Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Controller Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Cold Climate Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Hardware Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Hardware Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Temperature Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Temperature Probe Readings . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Wiring Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Programming the Electronic Controller . . . . . . . . . . . . . . . . . . . . . . . 12

Temperature Setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Parameter History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

3Wiring

Model: OD260 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

4Spare Parts

Cabinet Assembly - OD260 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Electrics Plate Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Unit Electrics Box Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Refrigeration Unit Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

5Installation

Climate Class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Chiller Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Air Movement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Stabiliser Feet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Shelves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Installing the Shelves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6Replacement Procedures

SKOPE OD260

Service Manual

Isolating Electrics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Interior Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

LED Driver Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Cabinet Electrics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Electrics Plate Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Sweat Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Front Upstand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Vertical Bumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Honeycomb Air Grille . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Refrigeration Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Removing the Refrigeration Unit . . . . . . . . . . . . . . . . . . . . . . . . . 33

Unit Junction Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Condenser Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Evaporator Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Compressor Electrics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Electronic Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Temperature Probes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Condenser Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Evaporator Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Service Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Condenser Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

7Troubleshooting

SKOPE OD260

Specifications

Service Manual

1Specifications

Models

This service manual is applicable to the SKOPE chillers detailed below. The

type is used to distinguish between different models throughout this manual.

OD260 Cabinet

Refrigeration Unit

Model Description Type

OD260 2 × interior lights O26CY

Description Open Deck Chiller

Type O26CY

Construction

Insulation 40mm thick, polyurethane foam. Cyclo-iso Pentane

blowing agent: C5H10/C5H12

Doors n.a.

Dimensions External Internal

Height 1400mm 850-910mm

Width 650mm 565mm

Depth 735mm (includes rear

spacer) 495-595mm

Floor area 0.48m2(includes rear spacer)

Internal volume 230 litres

Shelves

2 × flat or angled (8°), adjustable height shelves, and 1 ×

fixed, angled bottom shelf.

Top shelf: 545mm wide ×

296mm deep. Middle shelf: 545mm wide × 371mm deep.

Bottom shelf: 545mm wide × 442mm deep.

Operating conditions

Climate class: 3. Tested at 25°C

Product temp. range 1°C to 5°C (2°C to 4°C product mass average)

Electrical 220-240 Volts a.c. 50 Hz, single phase supply

Tot al run A m p s 3.2 Amps (includes unit 3.0 Amps)

Sign lighting n.a.

Internal lighting 2 × 9 Watt LED strip side lights (18 Watts total)

Description Electronically controlled, bottom mounted SKOPE

refrigeration unit

Unit model UB89ABF-107IE

Compressor Embraco NEK6210Z

Controller Carel S4 Evo

Nominal capacity 815 Watts

Refrigerant R134a / 420 gms

6Electronic Controller

Service Manual

SKOPE OD260

2Electronic Controller

Electronic Controller Operations

Introduction The chiller is fitted with a Carel S4 Evo electronic controller which is visible

through a cutout in the cabinet front panel, and is housed inside the

electronic controller box assembly at the front of the refrigeration unit.

The electronic controller controls and displays the chiller temperature, and

signals temperature alarms.

To ensure efficient operation, the electronic controller automatically forces a

defrost cycle when required.

The electronic controller is pre-programmed. SKOPE does not recommend

that settings be changed unless it is absolutely necessary.

SKOPE OD260

Electronic Controller

Service Manual

Faceplate Because the electronic controller plays such an important role, it’s helpful to

know the parts of the faceplate you may use.

No. Item Description

Digital display of cabinet temperature or messages.

The temperature is what the sensor inside the chiller detects,

and not necessarily the product temperature. However, they

may be very close depending on how the controller is set to

sense temperature.

2Up: Button. Used for programming.

3Set (mute): Button. Press to mute the alarm. Press and hold

to access parameters. Also used for programming.

4Light (down): Button. Press to switch the cabinet light on

and off. Also used for programming.

Defrost: Indicator. ON when the defrost is activated. Flashes

when the activation of the defrost is temporarily delayed due

to procedures in progress.

Compressor: Indicator. ON when the compressor and

condenser fan starts. Flashes when activation of the

compressor is temporarily delayed.

Fan: Indicator. ON when the internal cabinet fans are

activated. Flashes when activation of the fans is temporarily

delayed.

8Alarm: Indicator. ON when alarm is signalled.

8Electronic Controller

Service Manual

SKOPE OD260

Running the Chiller

Operating

Modes The electronic controller runs the chiller in constant ‘Normal’ mode. The

OD260 does not use an energy saving/night mode (or similar).

Note: Normal mode is suitable for perishable product (all shelves maintain

temperature below 5°C).

During some conditions or refrigeration system alarms, the electronic

controller may run the chiller in cold climate protection mode, or may shut

down the lights and/or refrigeration system. Refer to “Cold Climate

Protection” on page 10, or “Messages and Alarms” on page 9 for more

information.

Compressor

and Fans The compressor and condenser fan will start just after the chiller is turned

on. The compressor and condenser fan will stop when the control probe

temperature reading reaches 2.0°C (parameter St), and on again when it

reaches 4°C (parameter St + rd).

The evaporator fan starts approximately 3 seconds (parameter F0) after the

compressor and condenser fan. To verify, check that the FAN light is lit on

the electronic controller faceplate.

Temperature

Probes Three temperature probes feed data to the electronic controller: the control

probe, the evaporator probe, and the condenser probe.

The control probe monitors and controls the chiller temperature, provides

the chiller temperature for the electronic controller to display, and notifies the

electronic controller of any erratic or abnormal temperatures that could

identify an issue within the refrigeration system.

The evaporator probe controls the refrigeration system defrost initiation and

termination.

The condenser probe monitors the refrigeration system condenser

temperature and notifies the electronic controller of any abnormally high

temperatures that could identify an issue within the refrigeration system.

Refer to page 37 for service information.

Defrost Cycle The defrost cycle will begin after 2 hours (parameter dl) of compressor run

time. During the defrost cycle the compressor stops and the evaporator fan

runs continuously. The defrost cycle will terminate when the evaporator

probe reaches 4°C (parameter dt), or after the defrost cycle has been

running for 30 minutes (parameter dP).

Lighting Press the Light button on the electronic controller faceplate to manually

switch the lights on and off.

SKOPE OD260

Electronic Controller

Service Manual

Messages and Alarms

Controller

Display The following table explains messages and alarms that the electronic

controller displays.

Alarms signal unexpected operational changes in the chiller and can be

muted by pressing the set (mute) button on the electronic controller

faceplate (see page 7).

Messages

Alarms

Display Description

The chiller is in Normal mode and the electronic controller displays the

chiller temperature.

The chiller is in Cold Climate Protection mode. The chiller enters Cold

Climate Protection mode if the control probe detects the interior

temperature below -0.3°C (parameter St - CCt) for more than 30 minutes

(parameter CCd). The lights remain on and cannot be switched off (see

over page for more information).

Probe 1 error.

See parameters (page 12) for probe

function.

Probe 2 error.

Probe 3 error.

Low temperature alarm. An alarm sounds. The temperature inside

the chiller is too cold and an alarm sounds. The controller will

automatically reset the alarm once the temperature inside the chiller

raises.

High temperature alarm. An alarm sounds. The temperature inside

the chiller is too warm and an alarm sounds. The controller will

automatically reset the alarm once the temperature inside the chiller

drops.

Refrigeration system high

temperature

Pre-warning (auto reset)

1. Check refrigeration ventilation and

ensure the cabinet is installed in a

suitable location (see page 24).

2. To reset the ‘CHt’ alarm - unplug

the cabinet from the power supply

for 1 minute, then reconnect to

power supply.

Refrigeration system high

temperature

Shutdown (manual reset)

Low voltage alarm. An alarm sounds. The mains voltage is low. An

alarm sounds and the controller switches off the compressor. The

controller will automatically reset the alarm once the mains voltage

raises.

High voltage alarm. An alarm sounds. The mains voltage is high. An

alarm sounds and the controller switches off the compressor. The

controller will automatically reset the alarm once the mains voltage

drops.

Electronic controller fault.

10 Electronic Controller

Service Manual

SKOPE OD260

Cold Climate

Protection The chiller will enter cold climate protection (CCP) mode if the ambient

temperature becomes too cold. This happens if the control probe (at the

evaporator air out) detects the interior temperature below -0.3°C (parameter

St - CCt) for more than 30 minutes (parameter CCd). The lights will stay on

and cannot be switched off while the chiller is in CCP mode. The chiller will

return to Normal operation mode once the control probe reading raises to

2°C (parameter St).

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