Climate RENTAL SOLUTIONS SK650 Manual de usuario

SK650

SINGLE DOOR FRIDGE

SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE

OPERATING MANUAL

OPERATING MANUAL SK650 SINGLE DOOR FRIDGE

Page 2

1. Cabinet and Refrigeration Unit

Cabinet Construction

Exterior/Interior: White powdercoat on galvanised steel

Insulation: 50mm thick, polyurethane foam Cyclo-iso Pentane blowing agent: C5H10/C5H12

Dimensions

Height: 2195mm

Width: 740mm

Depth: 700mm

Floor area: 0.52m2

Internal volume: 610 litres

Refrigeration Unit

SKOPE top mounted integral Cyclone® refrigeration unit:

Nominal capacity: 581 Watts

Compressor: Electrolux GLY90RA

Refrigerant: R134a / 450 grams

Electrical

230-240 Volts a.c. 50 Hz, single phase power supply

Run Amps: 2.77 Amps

Lighting

Single or twin sidelights: 35 Watt T5 uorescent tube (OSRAM FH 35W/860 Daylight) Ø16mm x 1450mm

Illuminated Sign

1 x 14 Watt T5 uorescent tube (OSRAM FH 14W/860 Daylight) Ø16mm x 550mm

Doors

Self-closing, aluminium framed, double glazed, toughened safety glass

Shelves

5 x adjustable height, white plastic coated, steel wire shelves

OPERATION

1. Safety Information

When using any electrical appliance, safety precautions should always be observed. Read these instructions carefully,

and retain for future reference.

• When used by, or near, young children or inrm persons, close supervision is necessary. Young children should

be supervised to ensure that they do not play with the appliance.

• Do NOT use this appliance for other than its intended use.

• Do NOT cover the grilles or block the entry or exhaust of airow by placing objects up against the refrigeration

unit.

SPECIFICATIONS

OPERATING MANUAL SK650 SINGLE DOOR FRIDGE

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• Do NOT probe any opening.

• Only use this appliance with voltage specied on the rating label.

• Ensure adequate ventilation of the SKOPE refrigeration unit.

• Be careful not to touch moving parts and hot surfaces.

• Regulations require that all electrical work be carried out by authorised persons. For your own safety, and that

of others, ensure this is done.

• If the supply cord becomes damaged, it must be replaced by a SKOPE authorised service agent, or similarly

qualied person, in order to avoid a hazard.

• If the refrigeration units are required to be installed or removed from the cabinet, ensure all necessary safety

precautions are observed.

Warning: Do NOT overload power supply.

Caution: Disconnect the cabinet from the mains power supply before attempting any cleaning or maintenance.

2. Operation of Machine

Plug in the cabinet and check operation of the refrigeration unit, electronic controller and cabinet lights.

Refrigeration unit

The compressor and evaporator and condenser fans should all operate initially. This may be veried by listening for

compressor switch on, and checking for air circulation inside the cabinet.

The compressor and condenser fan should switch o󰀨 when the cabinet internal temperature reaches approximately

+2°C, and on again at approximately +4°C. The internal cabinet air will continue to circulate at all times.

Electronic controller

The electronic controller will either display the internal cabinet temperature or the controller set point. The compressor

‘on’ LED will indicate that the compressor is operating (see Figure 2 on page 12).

Cabinet lights

The lights which illuminate the top sign and cabinet interior are initially on, and will stay on permanently. The lighting

will require a period of time to stabilise following initial start up.

3. Loading

The shelves may be positioned at di󰀨erent heights to suit various products. Each shelf is held in place with four shelf

clips. Always ensure that the shelf clips are securely engaged in each of the four shelf support strips. The support

strips are marked with a ‘+’ for easy location of the shelf clips (see Figure 1 below).

When loading the shelves with product:

• ensure to allow air space around all packages etc, for even cooling and e󰀩cient operation.

• leave an airspace of at least 75mm (3”) above packages etc. on the top shelf.

• do not allow products to overhang the front of the shelf as this could prevent the door from shutting or cause

glass breakage.

OPERATING MANUAL SK650 SINGLE DOOR FRIDGE

Page 4

Figure 1: Shelf Clip

Shelf Support Strip

Shelf Clip

‘+’ Mark

Shelf

4. Cleaning

When necessary, wipe both interior and exterior of the cabinet with a damp cloth. Ensure the cabinet is disconnected

from the mains power supply before cleaning the cabinet.

Do not wipe the sealant o󰀨 the door gasket, as the sealant ensures the door gasket forms a good seal with the

cabinet.

Periodic cleaning of the condenser coil is also recommended.

Condenser coil

The condenser coil MUST be kept clean for e󰀩cient and reliable operation. To ensure trouble free performance, it is

recommended that on a regular basis the cabinet be isolated from mains power supply and a vacuum cleaner used

to remove dust and u󰀨 from the condenser coil.

The condenser coil should be brushed clean once a month, and blown clean by qualied service personnel, every six

months. The condenser coil is situated behind the sign unit. To access the condenser coil:

1. Disconnect the cabinet from the mains power supply.

2. Loosen the sign retaining clip on the top of each side panel.

3. Lift the sign unit up, to disengage from the sign sides.

4. Disconnect the sign ENSTO plug from the electrical box socket, and remove the sign unit from the cabinet.

Caution: Disconnect the cabinet from the mains power supply before cleaning the condenser coil.

OPERATING MANUAL SK650 SINGLE DOOR FRIDGE

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1. Controller Display

Figure 2: Controller Display

Item Key Function

1SET: Press to display target set point. In programming mode it selects a parameter or conrms an operation

2DEFROST: Press to start a manual defrost

3UP: Press to see the maximum stored temperature. In programming mode it browses the parameter codes, or

increases the displayed value

4DOWN: Press to see the minimum stored temp. In programming mode it browses the parameter codes, or decreases

displayed value

5 Compressor on LED indicator

6 Defrost cycle on LED indicator

7 Set Point displayed LED indicator

8 Decimal point LED indicator

Key Combinations:

+ Press both keys simultaneously, to lock and unlock the keypad

+ Press both keys simultaneously, to enter the programming mode

+ Press both keys simultaneously, to return to room temperature display

ELECTRONIC CONTROLLER

OPERATING MANUAL SK650 SINGLE DOOR FRIDGE

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Meaning of LEDs

Each LED function is described in the following table:

LED Mode Function

ON Compressor enabled

Flashing Anti-short cycle delay enabled

ON Defrost enabled

Flashing Drip time in progress

+Flashing Programming mode (see page 15)

ON The Set Point is displayed

2. Controller Operation

The SKOPE electronic controller controls and displays the cabinet temperature. The preset temperature setting

controls internal air temperature between 2°C and 4°C.

The electronic controller also signals and records temperature alarms, together with their duration and maximum

value reached (see Table 5 on page 18).

To ensure e󰀩cient operation, the electronic controller has a built in minimum o󰀨 cycle time of 3 minutes and features

regular timed defrost cycles. During the defrost cycle, the compressor switches o󰀨 and the evaporator fan stays on.

3. Programming Controller

The controller keypad must always be locked, to prevent unauthorised modication.

To unlock the keypad (to modify parameters)

Press both the UP and DOWN keys until ‘Pon’ is displayed.

How to lock the keypad

1. Press and hold both the UP and DOWN keys for more than 3 seconds.

2. The ‘PoF’ message will be displayed and the keypad will be locked. At this point it

will be possible only to see the Set Point or maximum or minimum temperature

stored.

3. If a key is pressed for more than 3 seconds, the ‘PoF’ message will be displayed.

To display the Set Point

Press, and immediately release the SET key. The display will show the Set Point value, and the Set

OPERATING MANUAL SK650 SINGLE DOOR FRIDGE

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Point LED will be highlighted.

To change the Set Point

1. Push and hold the SET key for more than 2 seconds.

2. The value of the Set Point will be displayed, and the LED will start

blinking.

3. To change the Set value, push the UP or DOWN keys.

4. To memorise the new Set Point value, push the SET key again or wait 15 seconds.

To start a manual defrost

Push and hold the DEFROST key for more than 2 seconds.

To change a parameter value

1. Enter the programming mode by pressing and holding both the

SET and DOWN keys for 3 sec. ( and start ashing).

2. Select the required parameter.

3. Press the SET key to display the Set value (now only the LED is ashing).

4. Press the UP or DOWN keys to change the Set value.

5. Press the SET key to store the new value and move to the following parameter.

6. To exit: Press both the SET and UP keys, or wait 15 seconds without pressing any keys.

7. To lock in new parameter value: after one minute operation, disconnect and reconnect cabinet into the mains

power supply.

NOTES:

1. The Set value is stored even when the procedure is exited by waiting for the time-out to expire.

2. Dependent on customer requirements, the SKOPE electronic controller has di󰀨erent parameter congurations.

Parameter conguration 160 = Beverage, 170 = Food, and 200 = Set Point display (see ‘Controller Parameters’

in Table 4 on page 17). To establish correct controller parameter conguration, see label on controller housing

(see Figure 3 on page 19).

To see the minimum temperature

1. Press and release the DOWN key.

2. The ‘Lt’ message will be displayed, followed by the minimum temperature.

3. Press the DOWN key again, or wait 5 seconds, to restore the normal display.

OPERATING MANUAL SK650 SINGLE DOOR FRIDGE

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To see the maximum temperature

1. Press and release the UP key.

2. The ‘Ht’ message will be displayed, followed by the maximum temperature recorded.

3. Press the UP key again, or wait 5 seconds, to restore the normal display.

To reset the maximum and minimum temperature

1. Press and hold the SET key for more than 3 seconds, while the maximum or minimum temperature is displayed.

The ‘rSt’ message will be displayed.

2. To conrm the operation, the ‘rSt’ message starts ashing and the normal temperature will be displayed.

3. Parameters

Display SKOPE Setting Min Max Description of Parameter

SET POINT PARAMETERS

Set 2 °C LS US Set Point

Hy 2 °C 0.1°C 25.5°C Di󰀨erential

LS -1 °C -50°C Set Minimum Set Point

US 15 °C Set 150°C Maximum Set Point

PROBE PARAMETERS

Ot 0.7 °C -12°C 12°C Thermostat probe calibration

OE 0 °C °C -12°C 12°C Condenser probe calibration

CONTROL PARAMETERS

OdS 0 Minutes 0 255 Outputs delay at start up

AC 3 Minutes 0 50 Anti-short cycle delay

DISPLAY PARAMETERS

CF °C °C / °F °C °F Temperature measurement unit

rES dE - in dE Resolution

LoD P1 - P1, P2 or SP Local display

DEFROST PARAMETERS

IdF 6 Hours 1 120 Interval between defrost cycles

MdF 12 Minutes 0 255 Maximum length for defrost

dFd dEF - rt, it Set, DEF Displaying during defrost

dAd 20 Minutes 0 255 Maximum display delay after defrost

ALARM PARAMETERS

ALc Ab - rE Ab Temperature alarms conguration

ALU 12 °C - 150°C Maximum temperature alarm

ALL -2 °C -50°C ALU Minimum temperature alarm

AtH 1 °C 0.1°C 25.5°C Di󰀨erential for temperature alarm in cabinet

OPERATING MANUAL SK650 SINGLE DOOR FRIDGE

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ALd 240 Minutes 0 255 Temperature alarm delay

dAO 24 - 0 Mins 23.5 Hours Delay of temperature alarm at start up

tbA n - n y Alarm relay silencing

PA2 58 °C -40°C AU2 Condenser over temperature

AU2 65 °C -40°C 110°C AUE Condenser alarm temperature

ACH 5 °C 0.1°C 25.5°C Di󰀨erential for condenser alarm temp recovery

dL2 2 Minutes 0 255 Condenser alarm delay

dA2 0 hh:mm 0 Mins 23.5 Hours Condenser alarm temperature delay at start up

AOP CL - OP CL Alarm relay polarity

OTHER PARAMETERS

dP1 - °C - - Thermostat probe read out

dP2 - °C - - Condenser probe read out

rEL - - - - Software release

Ptb - - - - Map code

4. Display Alarms

A ashing LED indicates an alarm. Possible alarm displays are:

Alarm Description

Stage ONE - Maintenance required:

Immediately attend condenser (for auto alarm reset).

Stage TWO - Refrigeration Shut-Down:

Condenser over-temperature has shut-down system and cabinet lighting. Attend condenser.

To reset alarm, cabinet must be replugged into power supply. For repeat alarms, contact an

authorised service agent.

Faulty Ambient probe (internal cabinet - return air)

Faulty High Temperature probe (condenser)

Internal cabinet - LOW temperature alarm

Internal cabinet - HIGH temperature alarm

Note: The refrigeration system and cabinet lighting shut down with ‘P1’, ‘P2’ and ‘CSd’ alarms.

Alarm Recovery

• Condenser over temperature alarm ‘COH’ recovers when the condenser is either cleaned or cools down.

• Condenser alarm ‘CSd’ temperature recovers by replugging the cabinet power supply (or isolation switch). In

this case, all the alarms are reset.

• Cabinet temperature alarms ‘LO’ and ‘HI’ automatically stop at temperature recovery.

OPERATING MANUAL SK650 SINGLE DOOR FRIDGE

Page 10

SERVICE INSTRUCTIONS

1. Troubleshooting

COMPLAINT POSSIBLE CAUSE REPAIR

1. Cabinet not operating - lights

etc not going.

Loss of power supply.

High pressure switch cut-out, due to over

heating.

Check power supply.

Check, and clean condenser. Check unit

operation, and reset pressure switch (see p.7).

2. Compressor will not start - no

hum.

Fuse removed or blown. No power.

Overload protector tripped.

Thermostat stuck in open position.

Thermostat o󰀨, due to cold location.

Wiring improper, or loose.

Replace fuse. Check reason.

Refer to electrical section.

Repair or replace control.

Relocate control.

Check wiring against diagram.

3. Compressor will not start -

hums but trips on overload

protector.

Improperly wired.

Low voltage to unit.

Start capacitor defective on CSIR or CSR motor.

Run capacitor defective on PSC motor.

Relay failing to close.

Compressor motor has a winding open or

shorted.

Internal mechanical trouble in com¬pressor.

Check wiring against diagram.

Determine reason and correct.

Determine reason and replace.

Determine reason and correct. Replace if

necessary.

Check resistance values. Replace compressor if

neces¬sary.

Replace compressor.

4. Compressor starts, but does

not switch o󰀨- startswinding.

Improperly wired.

Low voltage to unit.

Relay failing to open, due to welded contacts or

relay incorrectly mounted.

Run capacitor defective on CSR motor.

Excessively high discharge pres¬sure.

Compressor motor has winding open or shorted.

Check continuity and resistance.

Internal mechanical trouble in com¬pressor

(tight). May be lubrication.

Check wiring against diagram.

Determine reason and correct.

Determine reason and correct. Replace if

necessary.

Determine reason and replace.

Clean condenser. Check power input. Possible

overcharge, insu󰀩cient condenser cooling, or

non-condensible gasses.

Replace compressor if faulty.

Replace compressor.

5. Compressor starts and runs,

butshort cycles on overload

protector (relay may chatter on

RSIR, CSIR and CSR motors).

Additional current passing through overload

protector.

Low voltage to unit.

Overload protector defective.

Run capacitor defective on CSR motor.

Excessive discharge pressure.

Suction pressure too high.

Compressor too hot - insu󰀩cient suction gas

cooling.

Comp’r motor has a winding shorted.

Check wiring diagram. Check for added

fan motors etc., connected to wrong side of

protector.

Determine reason and correct.

Check current, replace protector.

Determine reason and replace.

Check condenser, check ventilation, check for

restrictions in refrigeration system.

Check for possibility of misapplication.

Check refrigerant charge (x leak), add if

necessary. Check return vapour temperature

and suction superheat.

Replace compressor.

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