Service manual - Complete Refridge Solutions · Service Manual 2 EMS Controller EMS Controller...

B600-2B600G-2SKOPE Single Door Vertical Chiller

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B600-2B600G-2SKOPE Single Door Vertical ChillerService Manual

MAN10531Rev. 2.0 Feb. 2014

© 2013 SKOPE Industries Limited. All rights reserved.

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

is a registered trademark of SKOPE Industries Limited.

SKOPE INDUSTRIES LIMITEDHead OfficePO Box 1091, ChristchurchNew ZealandFreephone: 0800 947 5673Fax: (03) 983 3896E-mail: [email protected]: www.skope.co.nz

Trademark InfringementThe 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 markNotice of the above contractual obligations passes to:• Successors or assignees of the buyer• Future owners of the product

CONTENTS

1 Specifications

B600-2/B600G-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5Refrigeration Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5EMS Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6Servicing Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

2 EMS Controller

EMS Controller Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Faceplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8Messages and Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Running the Chiller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Initial Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Relocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Motion Sensor & door Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Evaporator Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Condenser Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Temperature Probes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Defrost Cycles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Programming the EMS Controller . . . . . . . . . . . . . . . . . . . . . . . . . . .12Menu Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12Clearing Data from Memory (Half Reset) . . . . . . . . . . . . . . . . . . .12Full Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12Reviewing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14Temperature Setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15Perishable Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15Marketing Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15Test Routine Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

3 Wiring

B600-2/B600G-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

4 Spare Parts

Cabinet Assembly - B600-2/B600G-2 . . . . . . . . . . . . . . . . . . . . . . . .20Glass Door Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22Cabinet Junction Box Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . .23Sign Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23Side Light Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24Surge Protector Box Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25Mains Isolation Box Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25Cassette Electrics Box Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . .26Refrigeration Cassette Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . .27

5 Installation

Positioning the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28Chiller Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

SKOPE B600-2/B600G-2

Service Manualiii

Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Before Operating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Shelves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Bottom Shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Wire Shelves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6 Replacement Procedures

Isolating Electrics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Interior Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Sign Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Electrics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Cabinet Junction Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Mains Isolation Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Surge Protector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Doors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Replacing the Gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Removing Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Adjusting Door Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Replacing the Torsion Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Hinge Reversal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Refrigeration Cassette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Refrigeration Cassette Assembly . . . . . . . . . . . . . . . . . . . . . . . . 40Cassette Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Cassette Electrics Box Assembly . . . . . . . . . . . . . . . . . . . . . . . . 42Condenser Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43Evaporator Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46Compressor Electrics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

EMS Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47EMS Controller Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Door Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Control Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Condenser Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50Condenser Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

7 Troubleshooting

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Operation Diagnostic Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52Chiller Not Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Controller Alarms Diagnostic Charts . . . . . . . . . . . . . . . . . . . . . . . . . 54Door Open Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54High Temperature Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Refrigeration System Failure Alarm . . . . . . . . . . . . . . . . . . . . . . . 56Mains Voltage High/Low Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . 57Probe Failure Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57Freeze Up Protection Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Diagnostic Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59


Service Manualiv


Specifications

1 Specifications

B600-2/B600G-2

Cabinet

RefrigerationUnit

Electrical

Construction

Insulation: 50mm thick, polyurethane foam

Cyclo-iso Pentane blowing agent: C5H10/C5H12

Dimensions External Internal

Height:2195mm (B600G-2 sign) 1454mm

2005mm (B600-2 no sign) 1454mm

Width: 740mm 640mm

Depth: 758mm 602mm

Floor area:(Inc. 50mm stand-off) 0.60m2

Internal volume: 600 litres

Max operating temp: 40°C

Cabinet temp. range: +2°C to +4°C

Door: 1 x self-closing, reversible, lockable, double glazed, double Low-E, argon filled, toughened safety glass, RH hinged door

Shelves: 4 x adjustable height wire shelves + 1 x fixed in place bottom tray

‘Small’Cassette with EMS-55 Advanced electronic controller

Unit model: UH0SSCE

Compressor: Danfoss NL10MF

Controller: Energy Management System (EMS 55 Advanced) with motion sensor

Nominal capacity: 430 Watts

Refrigerant: R134a

Charge: 400 grams

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

Total run Amps: 3.0 Amps

Interior side light: 1 x side light: 19W T8 LED tube (ø26 x 1200mm)

Sign light (B600G-2 only):

1 x sign light: 11W T8 LED tube (ø26 x 600mm)

5Service Manual


EMS Controller

Servicing Tools Tools required for servicing may consist of the following:

Screwdriver with Pozidriv PZ1 and PZ2 bit

Slotted screwdriver

Small slotted screwdriver (for electrical connectors)

Model: EMS-55 Advanced with motion detector

OEM part number: 10132-6002

SKOPE part number: ELZ10251

Voltage: 12 Volt AC <15W SELV

Maximum switch capacity per CB report ratings:

(230VAC)

Compressor: 10 (10)A , p.f. 0.6

Fan relay: 4 (4)A , p.f. 0.6

Light relay: 500W fluorescent lamps

Nominal rating compressor relay: 30 Amp at 277 VAC 1 HP at 125 V a.c.

Temp input ranges: Appliance: -15°C to +23.5°C

Condenser: +50°C to +125°C

Accuracy: Appliance sensor +/- 0.5°C

Condenser sensor +/- 5°C

Resolution: 0.1°C

LED display: 15mm 7 segment LED (green)

Temperature sensors: Thermistor (NTC) -35°C to +125°C

Transformer: 240 - 12 VAC

Maximum ambient operating temperature:

55°C

IP rating (according to IEC 60529): Front IP: 45

Rear IP: 24

6 Specifications

Service Manual


2 EMS Controller

EMS Controller Operations

Introduction The Energy Management System (EMS) Advanced controller is visible on the front panel and is mounted within the cassette electrics box on the front of the refrigeration cassette.

The EMS Advanced controller detects variable business hours and switches the chiller to active mode approximately three hours prior to opening, and then changes to stand-by mode approximately half an hour after close of business. While in the economical stand-by mode the cabinet lights turn off, the fans cycle on and off and the chiller operates at a higher internal temperature.

Firmware The firmware version is displayed on the digital display when the EMS Advanced controller is powered up. See the table below for current firmware versions:

Some differences exist between the two firmware versions. These differences are noted throughout this chapter where applicable and are summarised in ELSTAT firmware release notes.

IMPORTANTThe EMS Advanced controller must only be adjusted by an

authorised service agent.

Figure 1: EMSAdvanced controller

Date range Firmware version

Pre Sept 2012 U01-r02

From Sept 2012 U01-n01

7EMS Controller

Service Manual


Faceplate Because the controller plays such an important role, it’s helpful to know the parts of the faceplate you will use.

No. Item Description

1Defrost button. Manually activates an additional defrost cycle, and used to program the controller.

The first automatic defrost occurs six hours after the first off-cycle.

2Set button. Used to program the controller.

3Infrared motion sensor. It detects activity within five metres around the front of the chiller, and feeds the data to the EMS advanced controller.

4 LED for the compressor light – green when compressor on.

5 LED for the evaporator fan – green when evaporator fan on.

6

LED indicating perishable mode – red when on.

Normal condition should be lit because the chiller is factory set for perishable product, which are high risk foods likely to support the growth of harmful bacteria. Perishable mode requires more energy.

When chilling non-perishable product, perishable mode can turned off to save energy.

7LED linked to the motion sensor and flashes red when there is activity around the chiller, but otherwise off.

8Up button. Used to program the controller and cancel rSF and Ht alarms.

9Down button. Used to program the controller.

10

Digital display of cabinet temperature or messages (see next page for details).

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.

When the chiller is in stand-by mode, the controller displays three (- - -) bars. This should not be displayed during normal business hours.

8

91

2

3 4 5 6 7

10

Figure 2: EMS Advancedcontroller faceplate

8 EMS Controller

Service Manual


Messages andAlarms

The following table explains messages that the EMS Advanced controller displays and related alarms. Alarms signal unexpected operational changes in the chiller and stop when you disconnect the chiller from the power supply at the isolating switch. Refer to the diagnostic charts starting on page 59 for assistance with alarm diagnostics.

Display Description

When the chiller is in stand-by mode, the EMS Advanced controller displays three bars. This should not be displayed during normal business hours. When the chiller becomes operational, the display changes to the temperature (see previous page).

Defrost cycle in progress.

Door Open. The EMS Advanced controller detects an open door through a door switch in the door, and has found one open.

The door has been open for 2-3 minutes. An alarm sounds, but stops when the door closes again.

If the door remains open for longer than 3 minutes, such as when loading product, the alarm stops and the EMS Advanced controller turns off the compressor. The compressor starts again when the door closes.

High Temperature. The refrigeration system has overheated, and an alarm sounds. The EMS Advanced controller turns off the system to avoid damage. Possible causes and solutions for refrigeration system overheating could be:

Blocked condenser - clean the condenser. Inadequate ventilation around chiller - ensure cabinet is spaced off

wall by upstand. Faulty condenser fan - replace if necessary (see page 43). High ambient temperature - ensure chiller is operating in correct

enviroment (see “Specifications” on page 5).

Appliance Probe Failure. The appliance temperature sensor in the cabinet or condenser is disconnected or has failed, and an alarm sounds.

Condenser Probe Failure. The condenser temperature sensor in the cabinet or condenser has failed, and an alarm sounds.

Firmware version U01-r02: Faceplate displays PF2 and the compressor stops.

Firmware version U01 n01: Faceplate alternates between PF2 and cabinet temperature, and compressor keeps cycling.

Refrigeration System Failure. There is a refrigeration system failure, and the controller turns it off to avoid damage. An alarm sounds when the system does not reach the preset temperature within 72 hours.

Problem downloading parameters.

Supply High. The voltage from the main supply is too high, and an alarm sounds. The controller turns off the electrical motors, continuously monitors the voltage level, and restores power as soon as the voltage returns to a safe level.

Freeze up protection. The cabinet temperature is too low. The compressor stops running and the evaporator fans run continuously until the cabinet temperature reaches an acceptable level as defined by the parameter settings.

Supply Low. The voltage from the main supply is too low, and an alarm sounds. The controller turns off the electrical motors, continuously monitors the voltage level, and restores power as soon as the voltage returns to an appropriate level.

9EMS Controller

Service Manual


Running the Chiller

Function Operation of the EMS Advanced controller is determined by the parameter settings (detailed on page 14), and by information gathered via the motion sensor and door switch (see page 11).

The EMS Advanced electronic controller runs the chiller according to an automatically learned seven day schedule. The seven day schedule is split into 30 minute time periods which are identified as either active, monitor or stand-by periods. The EMS Advanced controller uses the information in these time periods to determine when the chiller should run in active or stand-by mode. The schedule is constantly updated with information collected by the motion sensor.

Initial Start-up When the chiller is initially started, the schedule is empty and the chiller is run according to the AF and LP parameters.

If AF = 3, the chiller operates in active mode for 48 hours while monitoring traffic density via the motion sensor and door door switch. After this 48 hour period it automatically changes the AF parameter to 0, 1 or 2 according to traffic monitored during the 48 hour period. If the AF parameter is initially preset to 0, 1 or 2, the EMS Advanced controller skips the initial 48 hour activity monitoring period and uses the preset value (0, 1 or 2).

During the following seven days, operation is determined by the LP parameter setting. If LP = 0, the chiller will switch between active and standby mode based on information gathered during the first 24 hours. If LP is set to 1, the chiller will run in active mode continuously for the seven days while learning and preparing a schedule for normal operation. After the initial start-up period, the EMS Advanced controller starts operating based on the schedule it has learned while continually updating the schedule when any change in the actual traffic usage patterns is detected.

Note: If the EMS Advanced controller is not powered for a 72 hour period, a half reset will be performed automatically. This will clear the schedule and the controller will enter the initial start-up period when next powered up.

NormalOperation

During normal operation, the chiller continually reviews data and updates the schedule with any activity changes. If no activity is detected by the motion sensor door and door switch during an active time period, the EMS Advanced controller will flag that period and monitor it in seven days time (when that time period is reached again in the schedule). If it confirms that this time period is inactive it will change it from a monitor period to a standby time period in the schedule. Note: The chiller will only operate in standby mode if the confirmed standby period is longer than parameters dS + Sr.

If activity is detected during a stand-by time period the lights will immediately switch on and stay on for up to 30 minutes (the remainder of that 30 minute time period). The EMS Advanced controller will temporarily flag that period and monitor it in seven days time. The following week it will ensure that the product is at the required sales temperature and operate in normal operational mode for that period. If there is activity during that same period it will change the status of that period to an active period. If it sees no activity during that period it will change it back to a stand-by period.

Relocation When moving the chiller to a location with different traffic density or different opening/closing hours, a half reset can be performed to reset the seven day schedule (see page 12). This allows the EMS Advanced controller to re-establish the opening/closing hours and alter the chiller operation more quickly than if it was left to learn the new schedule without a half reset. The

10 EMS Controller

Service Manual


AF parameter setting can also be automatically reconfigured by setting AF = 3 in the parameter menu (see page 14).

Motion Sensor& Door Switch

The motion sensor detects activity in front of the chiller and feeds the data to the EMS Advanced controller. It is located on the faceplate of the controller and is visible on the front panel.

The motion sensor can be switched on and off via the Sn parameter (see page 14) (firmware U01 n01 only).

The chiller is fitted with a door switch below the door. The door switch tells the EMS Advanced controller how often the door is opened. A small magnet in the door frame activates the switch.

EvaporatorFans

The EMS Advanced controller runs the fans and lights in a manner that conserves energy. Specifically they:

Turn off when the door is opened, even when the compressor is running, so that cold air does not escape and warm air is not drawn in.

Run continuously during an uninterrupted pull-down (initial cooling of product) even if the doors are opened.

Remain off 3-4 minutes after the refrigeration unit is plugged in again after maintenance.

CondenserFan

The condenser fan runs during compressor on-cycles and stops during compressor off-cycles. Note: Cassettes manufactured prior to June 2013 may include a condenser fan reverse function.

TemperatureProbes

Two temperature probes feed data to the EMS Advanced controller - the control probe and condenser probe.

The control probe controls the chiller temperature and provides chiller temperature data for the EMS Advanced controller to display.

The condenser probe activates the over temperature refrigeration system cut-out if the refrigeration unit overheats. If activated the EMS Advanced controller will display alarm code Ht (see “Messages and Alarms” on page 9 for more information).

Defrost Cycles The defrost cycle activation is determined by the dE, df and dtf parameter settings (see page 14). The EMS Advanced controller displays dEF during the defrost cycle.

Note: On EMS Advanced controllers with U01 n01 firmware, the defrost interval timer (dE) is reset when the EMS Advanced controller is reset. This will delay the time until next defrost and could cause an ice-up.

Lighting Sign and interior lights are on during active mode, and off during standby mode.

Motion Sensor

Door Switch

EMS Controller

Front Panel

Figure 3: EMScontroller door switch

and motion sensor

11EMS Controller

Service Manual


Programming the EMS Controller

Menu Entry The EMS Advanced controller menu can only be accessed by entering a special and unique sequence.

To access the controller menu

The down button scrolls through the available menu

The set button enters the sub menu

Pressing the down button at FR exits the menu

If no input after eight seconds the EMS exits the menu

Clearing Datafrom Memory

(Half Reset)

It is sometimes necessary to erase learned business patterns, traffic density counters and statistics. A half reset can be performed when the cooler is in standby mode during outlet opening hours to clear the learnt matrix.

To reset the controller

Note: Half reset requires the standard password, which is the special and unique sequence used to enter the menu (see “Menu Entry” above). Full reset requires the standard password plus a restricted password.

Full Reset A full reset should only be used as a last resort. It will reset all parameters to the global default settings and could cause damage to the refrigeration unit. To enquire about performing a full reset, contact SKOPE.

1. Press and hold the set button, PAS appears on the display.

2. Release the set button.

3. Press the set button four times.

4. Press the up button once.

5. Press the down button twice.

6. Press the defrost button twice, PS appears on the display.

7. Either:Press the down button to enter the main menu.

Set

Defrost

Up

Down

Figure 4: EMS Advancedcontroller faceplate

1. Follow above instructions to enter the controller menu.

2. Press the down button to navigate to Hr (half reset).

3. Press the set button to select Hr.

4. Enter password.

12 EMS Controller

Service Manual


ReviewingData

Occasionally it is necessary to review data the EMS Advanced controller collects, such as for diagnostic purposes.

To view data

The following table explains the statistics.

1. Press the up and down buttons simultaneously to start the controller scrolling through the data and displaying values. It displays each value for about 20 seconds so that you can write it down.

2. Once finished it returns to its standard status.

Statistic Display Reportingperiod Data reporting description

Average temperature

24 Hours Continuously calculated from the highest and lowest registered temperature and updated with every update of these two values.

Lowest registered temperature

24 Hours At the end of the 24 hour period data from the last hour is erased, and is replaced by data from the latest hour.

Highest registered temperature

24 Hours At the end of the 24 hour period data from the last hour is erased, and is replaced by data from the latest hour.

Number of door openings

7 Days On the 7th day, the first day is erased and the current day is added to the count, which means that the count represents the last 7 days plus the current day or part thereof. The display shows the count as follows:

1-999 door openings: The display shows 1 to 999.

1000 - 99,999 door openings: The display shows 1.0 for 1000 to 1049, 1.1 for 1050 to 1099, 1.2 etc.

Number of shoppers

7 Days As per door opening counts above.

Activity frequency

0, 1, 2, or 3 displayed

Traffic density settings. 0 = Low, 1 = Medium, 2 = High, 3 = Auto

Compressor cycles

24 Hours A running total of cycles that the compressor has completed. A cycle consists of it turning on and off after the set point has been reached.

Compressor running hours

Running total

A running total unless a factory reset is done, which erases ALL data in the controller. When a half reset is performed in the field, the compressor running hours remain but all other statistical values are erased. The total maximum count is 99,999.

Perishable mode

OFF or On displayed

Normal condition should be on because the chiller is factory set for perishable product. Changing it to off enables non-perishable mode and greater energy savings.

13EMS Controller

Service Manual


Parameters Only an authorised service agent should change parameters.

To access the parameter menu

Note: EMS Advanced controllers with U01 n01 firmware will reboot when exiting the parameter menu.

The following table describes SKOPE settings for Program 292.

1. Enter the controller menu (see page 12) and navigate to the parameter menu. PS will show on the display.

2. Press the set button to enter the parameter menu and view the first parameter.

3. Press and hold the set button to scroll through the parameter menu.

4. Release the set button when the required parameter appears on the display.

Display Skope Setting

Units Range Description

Min Max

CF 0 Units 0 1 Display degree (0 = °C or 1 = °F)

SPC 1 °C -9.9 9.9 Set Point

dIF 3 °C 0 9.9 Differential

CA/CA1 0 °C -9.9 9.9 Calibration Sensor (cabinet sensor)

SSP 5 °C 0 9.9 Standby setpoint

Sd 4 °C 0 9.9 Standby differential

IPd 24 °C 0 30 Uninterupted pull-down activation temp.

dtt 0 °C -15 10 Activation temperature for freeze-up protection

dt/dtd 10 °C 1 25 Defrost termination temperature

FSP 1 °C 1 30 Fan setpoint

Ht 75 °C 0 130 High temp activation value (0 = Disabled)

rt 3 Mins 1 30 Compressor rest time

dS 30 Mins 0 120 Delay for stand-by

Ld 60 Mins 0 120 Light switch off delay

Sr 180 Mins 0 240 Standby restart period

Ct 72 Hours 0 100 Refrigeration system failure time elapse

dE 4 Hours 0 199 Defrost interval times

dd 15 Mins 1 199 Defrost duration

FCO 30 Mins 0 30 Evaporator fan cycle ‘on’ time (0 = Disabled)

FCF 1 Mins 0 30 Evaporator fan cycle ‘off’ time (0 = Disabled)

d2 5 Units 1 120 Display stability

HI 225 Units 90 250 Over voltage protection (250 = Disabled)

LO 150 Units 90 250 Under voltage protection (90 = Disabled)

b0 1 Units 0 1 Buzzer disable / enable (0 = Off or 1 = On)

b1 60 Secs 1 254 Buzzer sounding time per alarm

Ad 2 Mins 0 30 Alarm delay (0 = Disabled)

AF 0 Units 0 3 Activity frequency (0 = Low ~ 3 = Auto)

PEr 1 Units 0 1 Standby or Perishable Temperature Mode (0 = Off or 1 = On)

LP 0 Units 0 1 Learning period (0 = Short or 1 = Long)

dIS 1 Units 0 1 Display Type (0 = Temp or 1 = Use)

Ar 0 Units 0 1 Marketing Mode (0 = Off or 1 = On) (U01 n01 firmware only)

Sn 1 Units 0 1 Motion Sensor Enable (0 = Off or 1 = On) (U01 n01 firmware only)

14 EMS Controller

Service Manual


TemperatureSetpoint

The chiller temperature setpoint is factory set at 1°C. If necessary the standard setting can be adjusted between -9.9°C and +9.9°C. SKOPE do not recommend that the setpoint be changed unless it is absolutely necessary, and then only by small increments at a time.

To adjust the setpoint

PerishableMode

The chiller has the ability to operate in either perishable mode or non-perishable mode. When in perishable mode the symbol on the electronic controller faceplate is lit red, when in non-perishable mode the symbol is not lit.

Perishable mode is for use with perishable products such as dairy or food products. When in perishable mode the chiller temperature is kept constantly cool at all times. During standby periods the lights switch off and the fans cycle on and off. Perishable mode must be used when perishable product is being stored inside the chiller.

Non-perishable mode is for use with non-perishable products such as carbonated drinks and water. When in non-perishable mode, the chiller temperature is moderated, the lights switch off and the fans cycle on and off during standby periods resulting in maximum energy savings. Follow the steps below to change between perishable and non-perishable mode.

To change between perishable and non-perishable mode

MarketingMode

Firmware U01 n01 only. Marketing mode can be switched on and off via the Ar parameter (see page 14). When on, the lights stay on at all times (including during stand-by periods). When off, the lights will be on during active periods and off during standby periods.

1. Access the parameter menu and navigate to the setpoint parameter SPC (see page 14).

2. Press the up and down button to change the value.

3. Once the desired setting is flashing on the display, leave the controller for 20-30 seconds to save the setting.

IMPORTANTEnsure perishable mode is used when perishable product is being

stored inside the chiller.

1. Access the parameter menu and navigate to the perishable mode parameter PEr (see page 14).

2. Push the down button to change between perishable and non-perishable mode:

0 = Non-perishable mode1 = Perishable mode

3. Once the desired setting is flashing on the display, leave the controller for 20-30 seconds to save the setting.

15EMS Controller

Service Manual


Test RoutineFunction

The test routine function can be used as a diagnostic tool to determine possible faults. It has the ability to test the following:

Function buttons - tests the four faceplate buttons (firmware U01-r02 only).

Controller output relays - tests the compressor, light and fan relays, and disables all relays.

Controller inputs - tests probes and door door switch.

Motion sensor - tests motion sensor.

Cycle through each of the tests mentioned above to reach the required test (e.g. to reach the analogue input test, steps 1 to 6 must be completed sequentially).

To use the test routine function

1. In the controller menu (see page 12), scroll to tSt and press the set button. 888 will be displayed.

2. Press the set button to enable the function buttons test. 1.0 will be displayed (firmware U01-r02 only).

3. Press the set and def buttons to change to the relay test. rEL will be displayed.

4. Press the down button to enable the relay test.

5. Press the set and def buttons to change to the analogue input test. AnA will be displayed.

Button Description Display Output

Set Tests the set button 1.0

Up Tests the up button 3.0

Down Tests the down button 2.0

Defrost Tests the defrost button 4.0Test 1: Function

buttons test


Set Activates the compressor relay. The compressor should activate if connected.

Compressor LED lit. Display shows CP

Up Activates the light relay. The lights in the cabinet should come on if activated.

Display shows LIt

Down Activates the fan relay. The fan(s) should activate if connected.

Fan LED lit. Display shows FAn

Defrost Disables all relays. Any active relays (compressor, lights, fans) and associated LEDs should deactivate.

Display shows OFFTest 2:

Relay test

Continued over page

16 EMS Controller

Service Manual


6. Press the up button to enable the analogue input test.

7. Press the set and def buttons to change to the motion sensor test. PIr will be displayed.

8. Press the def button to enable the motion sensor test.

9. Press the set and def buttons to exit the test routine function menu. The controller will reboot after exiting the menu.


Set No function N/A

Up Displays current appliance temperature. Temperature value

Down Indicates state of connected door switch. dO = Open

CLO = Closed

Defrost Displays current condenser temperature. Temperature valueTest 3: Analogue

input test

Move your arm or hand from side to side 300mm away from the motion sensor. The display will show incremental counts.Test 4: Motion

sensor test

17EMS Controller

Service Manual


3 Wiring

B600-2/B600G-2

BN

RD

WH

BN

GNYEIsolation Switch

Isolation Switch

BU

P1-L S1-L S1-N P1-NBNBU

T1-1BN

T1-2BU

TransformerBN

BU

2 Comp. 1

3

4

Fans

Lights

5(+) 5(-)

Aux.

Cond.

Cab.

ELSTAT EMS Controller

BN

BU

BN

BNS2-2 P2-2

T1-4

BN

T1-3BN

S6-3

S7-4 P7-4

S3-2 P3-2

BN

BN

BUS4-2 P4-2

S3-1 P3-1BU

BN

BNS4-4 P4-4

BKP4-1 S4-1

BU BU

Condenser Fan

Evaporator Fan

BKP2-3 S2-3

BU BU

P2-1BN

BNS5-1 S5-3

BUS6-1

BN BU

BNFuse

BN BNS10-3 P10-3

S10-1 P10-1T2-1BN

T3-2

T3-1BN

BU

BN BU

WH

Sidelight

P7-2 S7-2T2-2BU

Danfoss Compressor

R S

CLN

Start

Relay

Compressor

Overload

BUBU

WH

SignS8-4 P8-4 S9-1 P9-1 T4-1

BN

BN BN BNBNP8-2 S8-2P9-N S9-NT4-2

BUBU BUBU BU

P13-1 S13-1

P13-1 S13-1WH

WH

BK

BK

P12-1 S12-1

P12-2 S12-2BK BS

BK

RD

RD

P11-1 S11-1

P11-2 S11-2BK

WH

Door Switch

Cabinet Probe

Condenser Probe

L N E

T5-2

T5-1BN

BU

Surge Protector / EMI Filter

BNBU GNYE

Unit Element Socket left unused

Unit Sign Socket left unused

P14-1 S14-1

P14-2 S14-2BK

WHP15-1 S15-1

P15-2 S15-2BK

WH

B600G-2 only

LEGENDBS Blue sleeve P11/S11 Door Switch Plug & Socket (on Unit) (White)

P1/S1 IEC Inlet Plug & Socket P12/S12 Condenser Sensor Plug & Socket (on Unit) (Red)

P2/S2 Evaporator Motor Unit Plug & Socket (White) P13/S13 Appliance Sensor Plug & Socket (on Unit) (White)

P3/S3 Compressor Unit Plug & Socket (Blue) P14/S14 Right Wall Door Switch Plug & Socket (White)

P4/S4 Condenser Motor Unit Plug & Socket (Yellow) P15/S15 Left Wall Door Switch Plug & Socket (White)

S5 Element Socket (on Unit, unused) (Black) T1 Unit Terminal Blocks

S6 Sign Light Socket (on Unit, unused) (White) T2 Cabinet Right Junction Box Terminal Block

P7/S7 Internal Light Plug & Socket (on Unit) (Yellow) T3 Cabinet Right Side Light Terminal Block

P8/S8 Sign Light Plug & Socket (on Cab) (Yellow) T4 Sign Terminal Block

P9/S9 Sign Light Plug & Socket (on Cab roof) (ENSTO) T5 Cabinet Right Junction Box Terminal Block 2

P10/S10 Side Light Plug & Socket (White)

<< Plug and Socket O Terminal on Terminal Block

WIRE COLOURSBK Black

BN Brown

RD Red

OG Orange

GN Green

BU Blue

GY Grey

WH White

GNYE Green-Yellow

Based upon IEC 757 Standard

18 Wiring

Service Manual


Notes

19Wiring

Service Manual


4 Spare Parts

Cabinet Assembly - B600-2/B600G-2

1

2

2

3

4

5

6

6

7

8 9

10

1111

13

13

14

14

15

16

19

20

21

22

23

24

25

1718

12

20 Spare Parts

Service Manual


Parts — Cabinet

Note: When ordering painted items, quote the relevant colour or colour code.

Item Description SKOPE Part No. Customer Part No.

1 Shelf bracket - gold HB0070105085A

2 Stop bracket HB0070108473

3 Solid shelf assembly HB0070109270

4 Wire shelf HB0070109245

5 Sign back strip (B600G-2 only) HB0070105692

6 Sign side (B600G-2 only) B12BA/S20-32

7 Kick panel assembly G60EA/131A

8 Door sensor bracket HB0070109431

Door sensor switch HB0074091444

9 Bottom hinge assembly RH HB0070109772

10 Bottom hinge assembly LH (for hinge reversal) HB0070109773

11 Top hinge HB0070109774

12 Door lock bracket HB0070109268B

13 Rear castor HB0070105066

14 Front castor HB0070105065

15 Flexible cord cover HB0070201891

16 Bottom shelf clip HB0070108558

17 Side light assembly HB0070807561

Side light diffuser B12BA/E71

18 Shelf support strip HB0070108447

19 Side light junction box assembly HB0070807456

20 Cabinet Junction box assembly HB0070807472

21 Sign assembly (LED tube not included) (B600G-2 only) G60BV/T61

22 Door assembly RH G60BA/Z04R

23 Refrigeration cassette assembly HB0070807777A

24 Mains isolation box assembly HB0070806970

25 Surge protector box assembly HB0070806971

21Spare Parts

Service Manual


Glass Door Assembly

Parts — Glass Door


0 Door assembly G60BA/Z04R

1 Magnetic gasket HB0070204885

2 Bush PLM5075

3 Torsion bar assembly REF5014

4 Capstan TUR8661X

5 Door sensor magnet HB0074091585

6 Door lock bracket - lower HB0070109269

7 SKOPE branding label LAB7562B

1

2

2

3

4

5

7

6

22 Spare Parts

Service Manual


Cabinet Junction Box Assembly

Parts — Cabinet Junction Box

Sign Assembly

Parts — Sign


0 Cabinet junction box assembly HB0070807472

1 Cabinet junction box base HB0070108517

2 3 Amp ceramic fuse ELZ9654

3 Fused terminal block ELZ9655

1

2 3


0 Sign assembly (excluding LED tube) G60BV/T61

1 11W T8 LED tube (ø26 x 600mm) ELL10286

2 T8 lamp holder ELZ6270

3 Sign panel (transparent) HB0070509574A

1

2

2

3

23Spare Parts

Service Manual


Side Light Assembly

Parts — Side Light


0 Side light assembly RH HB0070807561

1 19W T8 LED tube (ø26 x 1200mm) ELL10133

2 T8 lamp holder ELZ6270

1

2

2

24 Spare Parts

Service Manual


Surge Protector Box Assembly

Parts — Surge Protector Box

Mains Isolation Box Assembly

Parts — Mains Isolation Box


0 Surge protector box assembly HB0070806971

1 Surge protector box base HB0070108564

2 EMI filter FMN2030Z-10-06 HB0074600001

Surge protector flexible cord (not shown) HB0070400377

Unit supply flexible cord (not shown) HB0070400350

1

2


0 Mains isolation box assembly HB0070806970

1 Isolation box base HB0070108681

2 2 pole rocker switch HB0070401146

Isolation box cover HB0070108682

Mains supply flexible cord (not shown) V4800/E53

13

2

25Spare Parts

Service Manual


Cassette Electrics Box Assembly

Parts — Cassette Electrics Box


0 Cassette electrics Box Assembly HB0070807953A

1 Elstat transformer ELZ0654

2 EMS-55 Advanced controller ELZ1025P-292

3 Cassette electrics box base HB0070203474B

4 EMS controller holder HB0070201466C

5 Cassette electrics box back cover HB0070203475A

6 Door sensor switch HB0074091444

7 Condenser temperature probe (blue sleeve) HB0074000236

8 Control temperature probe HB0074000237

9 Cassette electrics box cover HB0070201467

Probe electrical wiring (not pictured) HB0070401962

Power electrical wiring (not pictured) HB0070401961A

Controller gasket (not pictured) HB0070201468

1

2

3

4 8

7

5

6 9

26 Spare Parts

Service Manual


Refrigeration Cassette Assembly

Parts — Refrigeration Cassette


0 Refrigeration cassette assembly HB0070807777A

1 Evaporator box (polystyrene tub) HB0070509580

2 Expansion valve HB0070701722

3 Evaporator coil HB0070700488

4 Evaporator fan motor HB0074000265B

5 Evaporator fan blade HB0074000310

6 Condenser coil HB0070701727

7 Condenser fan motor HB0074000265C

8 Condenser fan blade HB0074000309

9 Compressor - Danfoss NL10MF (with accessories) HB0070701307

10 Drier HB0070700377

11 Unit gasket seal HB0070203590

12 Cassette plastic top cover HB0070203470B

13 Cassette plastic bottom HB0070203471B

14 Cassette electrics box assembly HB0070807953A

1 23

45

678

9

10

11

12

13

14

27Spare Parts

Service Manual


5 Installation

Positioning the Cabinet

The cabinet is heavy, use caution when positioning it. Ensure the cabinet is empty when moving it around. Do not move a loaded cabinet.

ChillerLocation

The location of the chiller may be the single most important decision that will extend its life and ensure economical, high performance. We recommend that you put the chiller in the coolest place possible because it will use less power and last longer.

Allow adequate space for the door to open and close properly. Self-closing doors have internal torsion bars pretensioned at the factory, and must be unobstructed. Ensure the cabinet sits on a level surface so that the door shuts and correctly seals. Level footing also prevents the condensate tray from overflowing.

Ventilation Ensure there is always at least a 50mm gap around the back, top and underside of the cabinet. Keep the ventilation slots in the front panel clear at all times, never store cardboard cartons or other objects in front of the chiller.

BeforeOperating

Ensure both rear spacers are rotated outwards and fully tightened. This will provide the necessary air gap at the rear of the cabinet for correct operation.

Power Cord The chiller has a flexible power cord fitted with a 3-pin plug, which exits the rear of the cabinet at floor level. Pull the power cord around so that it’s not trapped before you position the cabinet.

WARNINGEnsure the cabinet is empty when moving it. Do not move a

loaded cabinet.

CAUTIONTo prevent over heating and conserve energy, ensure air flows

freely all around the chiller - including front, back, top and underside (minimum 50mm gap).

Back of Chiller

Power Cord

Rear Spacer

28 Installation

Service Manual


Shelves

The chiller is supplied with four wire shelves and one solid bottom stainless steel shelf.

Bottom Shelf The solid bottom shelf is fixed into place on the floor of the chiller. It is important that this shelf is always in place as it directs the interior air circulation.

Wire Shelves The wire shelves may be fitted at different heights to suit various products. Each shelf is held in place with four shelf clips, which engage in the shelf support strips. The support strips are numbered for easy location of shelf clips.

To fit the wire shelves

IMPORTANTFor correct chiller operation, the solid bottom shelf must

always be in the bottom of the chiller.

1. Unpack the shelves and shelf clips from inside the cabinet.

2. Establish the desired position for the shelves and securely engage a shelf clip in each of the shelf support strips.

3. Sit the shelves onto the shelf support strips.

29Installation

Service Manual



Isolating Electrics

Use the isolating switch to turn off electrics to the cabinet and refrigeration cassette without unplugging the cabinet from the wall. The isolating switch is located on the right hand side of the refrigeration cassette compartment.

To isolate the electrics

1. Open the door and undo the two fixing screws from the top of the front panel. Pull the front panel out to remove.

2. Switch off (O) the power at the isolation switch, located on the RH side of the refrigeration cassette compartment.


Service Manual


Lighting

This chiller is designed for use with LED tubes and is not compatible with fluorescent tubes.

Refer to the table below for replacement tube specifications.

Interior Light The cabinet interior is lit by one 19 Watt T8 LED tube (Ø26mm x 1200mm), which can be replaced without moving shelves or product.

To replace the cabinet interior side light

IMPORTANTDO NOT use fluorescent tubes.

Version Description Part No.

LED interior Philips 19W T8 LED tube (ø26 x 1200mm) ELL10133

LED sign Philips 11W T8 LED tube (ø26 x 600mm) ELL10286

1. Remove the front panel and isolate the chiller from the power supply (see page 30).

2. Remove the diffuser by squeezing it until it is released from the aluminium housing, and then push the diffuser out of the way.

3. Rotate the LED tube until the pins on the ends of the tube align with the slots, then slide it out.

4. Fit a new LED tube. Ensure the LED tube is fitted with the ‘Power’ end at the top. Note: If present, the pointer at each end of the tube should be set to the “0” position.

5. Refit the diffuser by slipping the back section into the housing, then squeezing and snapping the front section of the diffuser into place as you work down the length of the light.

Diffuser

LED Tube

Pins Lamp HolderLED Tube

31Replacement Procedures

Service Manual


Sign Light B600G-2 only. The sign unit is lit by one 11 Watt T8 LED tube (Ø26mm x 600mm), which can be replaced by removing the front sign panel.

To replace the sign light

1. Remove the front panel and isolate the chiller from the mains power supply (see page 30).

2. Remove the sign assembly. Lift the assembly up and off the sign sides and unplug it from the cabinet.

3. Remove the sign top cover by undoing the fixing screws from the top of the sign assembly.

4. Slide the clear front panel (and artwork if present) up and out of the sign assembly.

5. Undo the two inner lampholder fixing screws from the rear of the sign assembly.

6. Loosen the two outside screws (vertical slot screws) and slide the lampholder brackets (and LED tube) to the bottom of the vertical slots.

7. Rotate and remove the failed LED tube.

8. Fit the new LED tube.

9. Slide the lampholder brackets (and LED tube) to the top of the vertical slots and tighten the outside screws (vertical slots screws).

10. Screw the two inner screws back into the assembly to fix the lampholder brackets (and LED tube) in place.

11. Refit the clear front panel (and artwork if present) and screw the sign top cover back onto the top of the sign assembly.

12. Plug the sign assembly back into the cabinet and slot the assembly back onto the sign sides.

Screw driver

Sign top cover

Sign Assembly

Screw driver

Inner screw (remove)

Outer screw (loosen)

Sign assembly (back)Vertical slot

Lamp holder bracketLamp holder

LED tube


Service Manual


Electrics

The cabinet junction box assembly, mains isolation box assembly and surge protector assembly are located in the refrigeration cassette compartment. Remove the refrigeration cassette to access these assemblies.

CabinetJunction Box

The cabinet junction box contains electrical fuses and connectors, the LED light power supply, and the night blind relay and over-ride switch. The cabinet junction box is attached to the RH side of the refrigeration cassette compartment.

To access the cabinet junction boxes

Figure 5: Cabinetelectrics

Cabinet junction box

Mainsisolation box

Surgeprotector box

1. Isolate the chiller from the power supply and remove the refrigeration cassette (see page 30).

2. Unplug all plugs from the cabinet junction box.

3. Loosen the keyhole screws near the front of the junction box, lift and pull it out from the retaining bracket at the rear.

4. Service as necessary and refit. When refitting the cabinet junction box ensure all plugs are reconnected correctly.

Figure 6: Cabinetjunction box

Sign light plug and socket (where applicable)

Fused terminal block

Side light plug and socket


Service Manual


Mains IsolationBox

The mains isolation box assembly is made up of a rocker switch and a mains supply flexible power cord (see Figure 7 below). It is used to isolate the chiller from the mains power supply without the need to access the wall plug.

The mains isolation box assembly is located on the right hand side of the refrigeration cassette compartment, above the right hand side light junction box. It can be accessed by removing the top and bottom fixing screws.

Before attempting any work within the mains isolation box ensure the chiller is disconnected from the mains power supply (see page 30).

SurgeProtector

The surge protector (see Figure 8 below) protects the chiller from voltage spikes and eliminates possible electromagnetic interference. The Schaffner EMI filter regulates the supplied voltage before feeding it into the refrigeration cassette. The surge protector assembly is mounted to the right hand side interior wall below the mains isolation switch.

Before attempting any work within the surge protector assembly ensure the chiller is isolated from the mains power supply (see page 30).

Figure 7: Mainsisolation box interior

Rocker switch (from rear)

Figure 8: Surgeprotector

Schaffner EMI filter


Service Manual


Doors

The chiller is fitted with one self-closing RH hinged swing door. The hinging can be reversed to LH if required (see page 38 for details).

Alignment If the door is out of alignment, realign it by releasing the bottom hinge bracket that is provided with slots, enabling the bottom of the door to be moved sideways.

Replacing theGasket

The one-piece door gasket clips into the door frame and runs around the perimeter of the door. You can remove the gasket by peeling it from the door frame, starting at a corner (see Figure 9 below).

If the gasket is out of shape after you fit it, use a hair dryer to heat and reshape it.

RemovingDoor

For ease of servicing and to reverse the hinging, the door can be removed from the cabinet.

To remove the door

To replace the top hinge bracket (if necessary)

To refit the door

WARNINGFor safe door operation the door top hinge bracket must always

be fitted with a split pin.

Door gasketDoor frame

Figure 9: Doorgasket

1. Isolate the chiller from the power supply (see page 30).

2. Release the tension on the door capstan and remove the split pin from the top hinge bracket.

3. Unscrew the top hinge and lift the door clear of the bottom hinge pin.

1. Follow the above steps to remove the door.

2. Unscrew the four fixing screws and remove the original top hinge.

3. Replace with new top hinge and fix with the four fixing screws.

1. Lift the door onto the bottom hinge pin.

2. Fit the hinge pin into the door top hinge bush.

3. Screw the top hinge to the cabinet.

4. Re-tension the door (over page) ensuring the split pin is fitted.


Service Manual


Adjusting DoorTension

The door has an internal torsion bar, pretensioned at the factory, that lets the door self-close. If necessary, the door tension can be further adjusted by rotating the capstan mounted in the top hinge bracket (see Figure 10 below).

When the door tension can no longer be adjusted, consider replacing the torsion bar (see page 37).

To adjust the door tension

1. Slowly release tension on the capstan by turning it with a Ø2.5mm steel rod and rremove the split pin.

2. With the aid of another Ø2.5mm steel rod, increase the tension by turning the capstan in the direction that the door closes.

3. When you have the desired tension, re-insert the split pin through the hole in the hinge bracket to lock the position.

4. To check door tension, hold the door open about 100mm and let it go. It should gently close, with the gasket forming an airtight seal with the cabinet.

Door

Split pin

Top hinge bracket

Capstan

Slot forØ2.5mmsteel rod

Figure 10: Doortension capstan


Service Manual


Replacing theTorsion Bar

When the door tension can no longer be adjusted, you might want to replace the torsion bar.

To replace the torsion bar

1. Remove the door from the cabinet (see page 35).

2. Carerfully lever out the top bush from the door frame, and pull the old torsion bar out from the door frame. The end of the torsion bar will need manoeuvring to allow the flat hook end to clear the hinge hole.

3. Remove the existing capstan and bush from the old torsion bar.

4. Thread the capstan, complete with bush, over the round hook end of the new torsion bar. Ensure the aluminum tube moves freely up and down the torsion bar.

5. Fit the new torsion bar assembly into the frame. When the torsion bar is correctly installed, the capstan should not turn.

6. Lightly tap the capstan and bush into the hinge hole until the bush is flush with the door frame.

7. Refit the door to the cabinet, adjust the tension (see page 35) and re-fit the split pin.

WARNINGFor safe door operation the door top hinge bracket must always

be fitted with a split pin.

Slotted screw driver

Bush

Capstan

Top frame

Torsion bar round hook end

Capstan


Service Manual


Hinge Reversal The cabinet is supplied with the door hinged on the RH side. If required, the hinge can be swapped to the LH side to allow LH door opening (see steps below). Some spare parts are required to complete the procedure (see table below).

Parts required for hinge reversal

To reverse the hinging

Description SKOPE Part No.

LH bottom hinge assembly HB0070109773

SKOPE branding label LAB3320

1. Remove the door from the cabinet (see page 35).

2. Move the torsion bar assembly from the top of the door to the bottom of the door (see page 37 for removal instructions).

3. Swap the door switch magnet with the door lock bracket (from the door frame).

4. Remove the RH bottom hinge from the cabinet.

5. Remove the door switch bracket (including the door switch) and fit to the opposite side of the cabinet. Note: Depending on the path and length of the door switch cable, it may be necessary to unplug the door switch cable and connect directly to the cassette electrics box. (see page 42 and page 48 for door switch information, and page 18 for wiring information).

Continued over page


Service Manual


6. Fit the LH bottom hinge to the cabinet.

7. Remove the door lock bracket (from the cabinet roof) and fit to the opposite side of the cabinet.

8. Refit the door (see page 35) and sign assembly, remove the existing SKOPE branding logo from the door and attach the new SKOPE branding logo to the top LH corner of the door frame.


Service Manual


Refrigeration Cassette

Introduction The refrigeration cassette is a bottom mounted, electronically controlled removable cassette.

For major servicing or transportation, the refrigeration cassette unplugs and pulls out of the cabinet. Some minor servicing can be performed without removing the refrigeration cassette.

The model and serial number are both printed on the unit rating/serial number label attached to the cassette (see Figure 11 below). Before ordering spare parts take note of these numbers.

Specifications for the model are in the following table. Verify model and basic requirements before servicing.

RefrigerationCassetteAssembly

Unit Model: UH0SSCE-292IK

Compressor: Danfoss NL10MF

Compressor capacity: 430 Watts

Refrigerant: R134a

Charge: 400g

Figure 11: Refrigerationcassette assembly

Condenser coil

Cassette gasket seal

Cassetteelectrics box

Electroniccontroller

Evaporator coil

Mesh cover

Compressor start capacitor

Unit rating/serialnumber label

Cassettecover

Evaporator fan


Service Manual


CassetteRemoval

Follow the steps below to remove the refrigeration cassette.

To remove the refrigeration cassette

1. Open the door and undo the two fixing screws from the top of the front kick panel. Pull the kick panel up and out to remove.

2. Switch off (O) the power at the isolation switch, located on the RH side of the refrigeration cassette compartment.

3. Undo the two fixing screws from the cassette electrics box cover and remove.

4. Disconnect all of the plugs from the cassette electrics box.

5. Rotate both unit lifting levers outwards at the same time to lower the cassette.

6. The refrigeration cassette can now be pulled out from the cabinet. When refitting the cassette, ensure the cassette gasket seal is in good condition and the cassette lifts up and seals correctly against the cabinet.


Service Manual


CassetteElectrics Box

Assembly

The cassette electrics box assembly is mounted to the front of the refrigeration cassette and contains the EMS controller and transformer, the mains supply socket, and panel mount socket connectors (see Figure 12 below). Four of the sockets are visible behind the front cover, with the remainder attached to the back cover.

Due to the confined space within the cassette electrics box, plugs may come loose as a result of movement and vibrations. Take care when refitting to ensure all plugs are securely attached to the correct sockets.

To access the cassette electrics box assembly


2. Disconnect all plugs from the cassette electrics box panel.

3. Unscrew the four fixing screws from the perimeter of the cassette electrics box and pull the box out from the refrigeration cassette.

4. Disconnect the five plugs from the back cover sockets.

5. To remove the back cover, unscrew the four fixing screws from the corners of the back cover.

Figure 12: Cassetteelectrics box (detatched

from cassette)


Service Manual


CondenserFan

The condenser fan assembly is made up of an EC fan motor, a fan blade and mounting brackets which can be replaced when necessary.

The condenser fan runs during the compressor ‘on cycle’ and blows warm air out the back of the chiller. Note: Cassettes manufactured prior to June 2013 may include a condenser fan reverse function.

If the fan stops for any reason, check all connections to ensure no plugs have come loose. The condenser fan is connected to the yellow supply socket on the back of the cassette electrics box assembly.

The fan motor, fan blade and mounting brackets are removed from the refrigeration cassette as a complete assembly. The fan blade, fan motor and mounting brackets can then be replaced.

It is important that the fan blade and/or fan motor is replaced with the same part to ensure correct alignment and refrigeration performance. Fan motors should be tightened to 2.1Nm.

To access the condenser fan asssembly

To replace the fan blade

To replace the fan motor


2. Detatch the electrics box (see steps 1-4, page 42), unscrew the four fixing screws from the side of the cassette cover and lift the cover from the cassette. Place aside.

3. To create space within the refrigeration cassette interior and gain easier access to the fan assembly, carefully lift the evaporator tub and support with a foam block (or similar), and pivot/rotate the condenser coil forwards.

4. Remove the fan assembly (fan motor, fan blade, mounting brackets) from the condenser fan shroud by unscrewing the four fixing screws from the mounting brackets.

1. Remove the condenser fan assembly (see above).

2. Remove the screw and washer from the centre of the fan blade, and lift the blade from the motor.

3. Replace with new motor and reattach fan blade. Tighten the blade to 2.1Nm. Ensure the correct fasteners are used (serrated head screw and 12mm flat washer).

4. Reassemble cassette and test.

1. Remove the condenser fan assembly (see previous page).

2. Unplug the fan flexible cord (red connector plug) from the rear of the cassette electrics box.

3. Unscrew the mounting bracket fixing screws from the condenser shroud.

4. Detatch the fan motor from the fan mounting brackets by removing the three screws from the mounting bracket.

5. Replace with new motor and reattach fan blade. Tighten the blade to 2.1Nm. Ensure the correct fasteners are used (serrated head screw and 12mm flat washer).



Service Manual


EvaporatorFan

The evaporator fan assembly is made up of a high speed EC fan motor and fan blade, both of which can be replaced when necessary (see Figure 13 below). The evaporator fan flexible cord has a white plug.

The evaporator fan will start approximately one minute after the chiller is plugged into the mains power supply and switched on. It will blow air through the evaporator coil and into the chiller after approximately another minute.

Before replacing fan parts, check all connections to ensure no plugs have come loose. The evaporator fan is connected to the white supply socket on the rear of the cassette electrics box.

The fan motor and fan blade are fixed to the evaporator shroud via the brackets. The shroud (complete with fan motor and fan blade) can be lifted off the evaporator tub once the refrigeration unit cover has been removed.

It is important that the fan blade and/or fan motor is replaced with the same part to ensure correct alignment and refrigeration performance. When refitting or replacinig fan motors, ensure the blade screw is tightened to 2.1Nm.

To access the evaporator fan assembly

To replace the fan blade


2. Detatch the electrics box (see steps 1-4, page 42), unscrew the four fixing screws from the side of the cassette cover and lift the cover from the cassette. Place aside.

3. The evaporator fan assembly can now be accessed.

Figure 13: Evaporatorfan assembly

Fan motor

Temperature probe

Mounting bracket

Evaporator shroud

Evaporator tub

Evaporator coil

1. Follow the above steps to access the evaporator fan assembly.

2. Remove the screw and washer from the centre of the fan blade, and lift the blade from the motor.

3. Replace new blade and fix with 12mm flat washer and serrated head screw. Tighten the blade to 2.1Nm.



Service Manual


To replace the fan motor

1. Follow the above steps to access the evaporator fan assembly and remove the fan blade.

2. Lift the evaporator shroud (complete with fan motor) from the evaporator tub. Carefully flip over and place back onto the evaporator tub.Note: The evaporator and control probe flexible cords may restrict movement when lifting the shroud from the evaporator tub.

3. Free the fan flexible cord by cutting the cable ties and removing from the evaporator tub edge putty.

4. Remove the three screws from the fan mounting brackets and lift the fan motor from the bracket.

5. Attach to the replacement motor.

6. Reattach the fan motor to the mounting bracket and take care to re-cable the fan and temperature probe flexible cords back onto the mounting bracket (to prevent high frequency vibration).

7. Flip the shroud (complete with fan motor) and place back into the evaporator tub. Trace flexible cords back through the evaporator tub edge transition putty and back into the electrical box area. Ensure that the putty fills all gaps around the evaporator tub edge transition.

8. Reattach fan blade and tighten to 2.1Nm. Ensure the correct fasteners are used (serrated head screw and 12mm flat washer).



Service Manual


Compressor The compressor is located at the front of the refrigeration cassette, beside the condenser coil. If the compressor is causing excessive noise check the mountings to ensure there is no damage to the rubber or the washers, nuts and screws.

Before replacing the compressor, check all plug connections and ensure the compressor electrics are operating correctly (see below). The compressor must be supplied with consistent voltage over 220 volts, Ensure the voltage does not drop at start-up. If the voltage does drop, ensure the unit has a direct power supply (not from a multi-box or extension cord).

CompressorElectrics

The compressor electrics box is located on the front of the compressor (see Figure 15 below) and can be accessed by removing the refrigeration cassette (see page 41).

The cover on the electrics box is removed by unscrewing the fixing screw and unclipping from the compressor. Note: The start capacitor is located at the back of the refrigeration cassette (see Figure 16 below), not in the electrics box.

IMPORTANTTo eliminate possible vibration noise, ensure no pipes touch the

evaporator tub bottom surface, evaporator tub support legs, plastic base, and condenser assembly (see Figure 14 below for

examples).

Figure 14: Possiblevibration areas

Evaporator tub bottom surface

Plastic baseCondenser assembly

Figure 15: Compressor electrics box (with

cover removed)

Start relay

Compressor

Compressor start capacitor

Figure 16: Compressor start capacitor


Service Manual


EMS Controller

EMS ControllerLocation

The EMS Advanced controller is located within the cassette electrics box assembly, which is attached to the front of the refrigeration cassette. Refer to Figure 17 below for termination details.

To access and remove the controller

1. Remove the front panel and isolate the chiller from the power supply (see page 41).

2. Loosen the four fixing screws (two on each side) from the EMS controller holder and slide off the cassette electrics box.

3. Detatch the wires from the rear terminals.

4. Remove the four fixing screws from the faceplate of the EMS controller, and pull the controller from the spacer.

5. Service as necessary and refit.

Brown

BlueTransformer FlexDoor Switch

Temperature Probes

Blue Sleeve

Black

BrownBrown

WhiteRedBlackWhite

Brown

Figure 17: Controllertermination


Service Manual


Door Switch The chiller is fitted with a door switch which tells the EMS Advanced controller how often the door is opened. A small magnet in the door frame activates the switch. A cable connects the switch to the EMS controller via an inline connector located behind the wall panel (see Figure 18 below).

To remove the door switch

To test the door switch circuit


2. Trace the door switch cable back to the interior wall, and remove the wall grommet.

3. Pull the inline connector plug and socket through the hole, and disconnect the door switch cable plug from the socket.

4. Unscrew the two fixing screws from the door switch and remove from the door switch bracket.

5. Refit the replacement door switch and connect via the inline connector, refit the grommet into the interior wall and fix with fixing screws.

Figure 18: Door switch

Door switch

Door switch cable

Door switchbracket

Inline connector

Grommet


2. Gain access to the rear of the electronic controller (see page 47), and disconnect the switch from the rear of the electronic controller.

3. Measure across the two door switch wire ends . While measuring, open and close the cabinet door. The measurement reading should alternate between 0Ω (or very close to 0Ω) (door closed), and infinate Ω (door open).


Service Manual


Control Probe The control probe is cable tied to a bracket on the evaporator (see Figure 19 below).

To replace the control probe

CondenserProbe

The condenser probe is protected with insulating tape and attached to the side of the condenser coil (see Figure 20 below).

To replace the condenser probe

1. Remove the evaporator shroud (see page 44).

2. Detatch the probe from the evaporator fan shroud bracket and trace the probe cable back to the cassette junction box. Unplug from the cassette junction box.

3. Following the same path as the original probe, fit the new probe with cable ties as necessary. Ensure the probe cable is securely plugged into the rear of the cassette junction box and that it is cable tied to the evaporator fan shroud bracket.

Figure 19:Control probe

Cabinet probe

Evaporator shroud

1. Remove the front cover, isolate the chiller from the power supply and remove the refrigeration cassette (see page 41).

2. Remove the electrics box cover, detatch the electrics box (see steps 1-4, page 42), unscrew the four fixing screws from the side of the cassette cover and lift the cover from the cassette. Place aside.

3. Remove the insulating tape from the probe and detatch the probe from the side of the condenser coil. Trace the probe cable to the cassette junction box and unplug it.

4. Following the same path as the original probe, fit the new probe with cable ties as necessary. Ensure the probe cable is securely plugged into the rear of the cassette junction box, securely fixed to the side of the condenser coil and fully covered with insulating or cork tape. The probe must not protrude more than 5mm from the condenser coil elbow.

IMPORTANTTo prevent interferrence from the electrical box, the condenser

probe must not protrude more than 5mm from the condenser coil elbow.

Figure 20:Condenser probe

Condenser probe

Condenser coil


Service Manual


Cleaning

Cabinet Periodically wipe the inside and outside of the cabinet with a damp cloth, taking care to keep moisture away from electrical parts. As with any maintenance, ensure the chiller is isolated from the power supply before cleaning.

CondenserCoil

To ensure trouble-free performance, we strongly urge monthly cleaning with a soft brush to remove dust and fluff. A more thorough cleaning is required by qualified service personnel every six months. The condenser coil must be kept clean for efficient and reliable operation.

To clean the condenser coil

WARNINGIsolate the chiller from the power supply before cleaning the

condenser coil.

1. Remove the front panel and isolate the chiller from the power supply (see previous page).

2. Clean the condenser coil with a soft brush.

3. Reconnect the chiller to the power supply and refit the front panel.


Service Manual


7 Troubleshooting

Introduction

Use the following charts and table to assist with fault diagnosis. For EMS Advanced controller alarm descriptions, see “Messages and Alarms” on page 9.

Diagnosis procedure Page

Normal operation procedure Page 52

Chiller not cooling check Page 53

Door open (- - -) alarm Page 54

Refrigeration system failure (rSF) alarm Page 55

Condenser high temperature (Ht) alarm Page 56

Mains voltage high/low (SHI / SLO) alarm Page 57

Probe failure (PF1 / PF2) alarm Page 57

Freeze up protection (888) alarm Page 58

Diagnostic table Page 59

51Troubleshooting

Service Manual


Operation Diagnostic Charts

NormalOperation

Follow the steps below to confirm normal operation of the chiller.

Normal operation check

Is product cold?

Open chiller door.

Is the controller displaying

Door Open?

Hold door open.

Is the chiller temp.

increasing?

Keep door open until temp.

reaches SPC + dIF. Note: Door

alarm may occur.

Is the controller

displaying and sounding an

alarm?

Investigate chiller fault.

Has the compressor turned on?

Close chiller door.

Controller is operating normally.

Has the door alarm activated

and then stopped?

Close the door.

Yes

No

Yes

Yes

No

Yes

No Yes

No

Has the chiller been

reloaded with warm product?No

Refer to ‘Chiller Not

Cooling’ chart for further

information.No

Allow time for chiller to pull down product temperature.

Yes

Investigate controller fault.

No

Yes

Refer to relevant alarm

chart for further information.

52 Troubleshooting

Service Manual


Chiller NotCooling

Follow the steps below if the chiller does not appear to be cooling down.

Chiller not cooling check

Has chiller been recently reloaded with

warm product?

Is chiller installed

correctly with no blockages

infront or behind chiller?

Is the door/s closing

and sealing properly?

Is controller reading the

correct temperature?

Is temperature well

above setpoint with compressor

running?

Investigate refrigeration system fault.

Service the door/s.

Check parameters and

adjust as necessary.

Yes

No

Yes

No


Clear blockages

and/or install correctly.

Yes

No

Yes

Investigate temperature

probe or controller fault.

No

Yes

No

53Troubleshooting

Service Manual


Controller Alarms Diagnostic Charts

Alarms signal unexpected operational changes in the chiller. When an alarm is activated, use the following charts to assist with fault diagnosis and service as necessary.

Door OpenAlarm

The door has been open for 2-3 minutes. An alarm sounds, but stops when the door closes again.

If the door remains open for longer than 3 minutes, such as when loading product, the alarm stops and the EMS Advanced controller turns off the compressor. The compressor starts again when the door closes.

Door open alarm diagnostic chart

Are the door or doors aligned

correctly?

Yes

No

Realign door/s.

Are the door switch/es aligned

correctly?

No

Connect door switch/es

properly.

No

Realign door switch/es.

Yes

Are the door switch/es properly

connected to the rear of the controller?

No

Replace door switch.

Yes

Is the connection

between the two switch cable

terminals good (see pg. 48)?

Yes

If no fault found, make decisionto monitor for intermittent faultor replace switch and controller.

No

Replace controller.

Is the connection

between the controller door

switch terminals good?

Yes

54 Troubleshooting

Service Manual


HighTemperature

Alarm

High Temperature. The refrigeration system has overheated, and an alarm sounds. The EMS Advanced controller turns off the system to avoid damage.

High temperature alarm diagnostic chart


warm product?




Is chiller installed within

the correct ambient temp.

range?



Is the condenser fan

and compressor running?


Reposition chiller in suitable

location.

Investigate condenser fan or compressor fault.

Yes

No

Yes

No


Clear blockages


Yes

No

Yes

Press the down button

once to clear the alarm.

No

Yes

No

Check and clean condenser coil (and filter if

fitted).



Has the Ht alarm stopped?

Yes

No

Replace controller.



Is the chiller cooling down and Ht alarm staying off?

No

Yes

Fault cleared.




No

Yes

Fault cleared.




No

Yes

Fault cleared.





Is parameter Ht set correctly?

Yes

No



Set parameter Ht to

correct value.


No

Yes

Fault cleared.

Is the chiller cooling down and Ht alarm staying off? Yes

Fault cleared.

Is the door/s closing

and sealing properly? No

Yes

No

Service the door/s.

55Troubleshooting

Service Manual


RefrigerationSystem Failure

Alarm

Refrigeration System Failure. There is a refrigeration system failure, and the controller turns it off to avoid damage. An alarm sounds when the system does not reach the preset temperature within 72 hours.

Refrigeration system failure alarm diagnostic chart


warm product?




Is chiller installed within

the correct ambient temp.

range?



Is the evaporator fan

and compressor running?


Reposition chiller in suitable

location.

Investigate evaporator fan or compressor fault.

Yes

No

Yes

No


Clear blockages


Yes

No

Yes

No

Yes

No



Has the rSF alarm stopped?

Yes

No

Replace controller.

Is the chiller cooling down to

setpoint?

No

Yes

Fault cleared.


setpoint?

No

Yes

Fault cleared.


setpoint?

No

Yes

Fault cleared.



Is the setpoint set

correctly?

Yes

No

Set parameter SPC

to correct value.


setpoint?

No

Yes

Fault cleared.

Is the door closing and sealing properly?

No

Yes

Service the door.

56 Troubleshooting

Service Manual


Mains VoltageHigh/Low

Alarm

Voltage high/low alarm. The voltage from the main supply is too high or low, and an alarm sounds. The controller turns off the electrical motors, continuously monitors the voltage level, and restores power as soon as the voltage returns to an appropiate level.

Mains voltage high/low alarm diagnostic chart

Probe FailureAlarm

Probe Failure. A temperature sensor is disconnected or has failed, and an alarm sounds.

Probe failure alarm diagnosis chart

Has there been a voltage

spike in the local area (e.g. storms

etc.)?

No

Yes

Controller operating normally.

Are there any other

potential causes for high voltage

supply?

Is transformer output VAC approx. 12v?

Yes

Investigate causes further to

determine whether these caused alarm.

No

Replace transformer.

No

Yes

Are SHI & SLO parameters

correct?Yes

Replace controller.

Set parameters

correctly.

No

Is the cabinet plugged into a multi-box

or extension cord?

No

Are there any other

potential causes for low voltage

supply?

Yes

Controller operating

normally. Plug cabinet directly

into mains socket to avoid voltage drops.

Yes

No

Are the sensors securely

fitted?

No

Yes

Is either sensor open

circuit?

Secure loose sensor.

Has alarm cleared?

Fault cleared.

Yes

No

Replace sensor.

No

YesReplace

controller.

57Troubleshooting

Service Manual


Freeze UpProtection

Alarm

Freeze up protection. The cabinet temperature is too low. The compressor stops running and the evaporator fans run continuously until the cabinet temperature reaches an acceptable level as defined by the parameter settings.

Freeze up protection alarm diagnostic chart

Is ambient temperature below 0°C?

No

Yes

Controller operating correctly.

Remove control sensor

from the back of the controller.

Is controller displaying probe

fault?

Replace controller.

No No

Replace control sensor.

Yes

Is controller reading

temperature correctly? Yes

Fault cleared.

58 Troubleshooting

Service Manual


Diagnostic Table

For questions about the EMS Controller, alarms and alarm diagnostics, see “Messages and Alarms” on page 9 and “Test Routine Function” on page 16. For problems with the cabinet and refrigeration unit, use the following table.

Problem Possible Cause Repair

• Cabinet not operating / no controller display

• Switched off at isolation switch.

• Switch on at isolation switch (see page 34).

• Loss of power supply. • Check mains power supply.

• Loose plug in electrics box.

• Check all plugs in electrics box are connected correctly (see page 47).

• Excess noise vibration • Refrigeration pipes transferring vibration into cassette.

• Re-align pipes (see page 46).

• Frozen evaporator coil • Excessive door opening.• High product turnover/

frequent reloading with warm product.

• Perform manual defrost (see page 8).

• Door not aligned or sealing correctly.

• Service door (page 35).

• Interior light not on • Failed tube • Replace tube (see page 31).

• EMS controller is in stand-by mode

• Movement in front of the motion sensor will reactivate it (see page 8).

• Loose plug in electrics box

• Check all plugs in electrics box are connected correctly (see page 47).

• Power consumption is higher than expected

• Unit operating too hot • Clean the condenser coil (see page 50).

• Ensure the cabinet is installed within the maximum operating environment (see page 5).

• Cabinet door is opened excessively.

• Ensure door is closed more often.

• Restricted airflow. • Ensure nothing has fallen behind cabinet or blocking air vents.

• Ensure the cabinet has good ventilation around the refrigeration unit.

• Ensure cabinet is spaced off wall and installed correctly (see page 28).

• EMS controller is in perishable mode.

• Change to non-perishable mode (see page 15) (non-perishable product only).

Continued over page

59Troubleshooting

Service Manual


• Product is too warm• Warm cabinet

temperatures.

• EMS controller is in stand-by mode

• Movement in front of the motion sensor will reactivate it (see page 8).






• EMS controller is in non-perishable mode

• Change to perishable mode (see page 15).

• Compressor operating for long periods (more than 1 hour)






• Poor ventilation around refrigeration unit


• Ensure the cabinet is within the maximum operating temperature (see page 5).

60 Troubleshooting

Service Manual

SK

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SKOPE Industries LimitedNEW ZEALAND CONTACTHead OfficePO Box 1091, ChristchurchNew ZealandFreephone: 0800 947 5673Fax: (03) 983 3896E-mail: [email protected]: www.skope.co.nz

AUSTRALIAN CONTACTA.B.N. 73 374 418 306PO Box 7543, Baulkham Hills B.C.NSW 2153, AustraliaFreephone: 1800 121 535Fax: 1800 121 533E-mail: [email protected]: www.skope.com.au

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