Lec+ IST 47 Operating Instructions Manual

REFRIGERATORS-FREEZERS

Operating In struc tions

IST 47

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The refrigerator you have bought represents a new line of our products. It is characterized by modern functional solutions, soft lines and subtle design. Please, read the following description. It will let you fully appreciate the advantages of the new line of our Laboratory refrigerators and see for yourself that it is a good buy. The following innovative technological solutions constitute the highest quality of our products: * fully environment-friendly product: the coolant, the construction materials as well as our production technology do not yield any pollutants, * sturdy door will hold a load of products arranged on capacious door shelves, * solid insulation of our refrigerators ensures high efciency and low energy consumption, * self-defrosting fridge compartment limits cleaning to a periodical wash of the compartment, * ergonomic door handles, big and modern-shaped, with no sharp edges, make opening the door easy, * optimally situated lighting ensures perfect illumination of the refrigerator compart- ment and prevents from dazzling the user. The esthetic nishing, selection of graphics and colors ensure positive visual sensations and the technical solutions and operating parameters guarantee comfortable use of the product.

The refrigerator/freezer was developed taking the different storage requirements of food items into consideration. Some must be stored cold - others require a little higher

temperature. A few must be stored separately so as not to impart avour and odour

to other items of food. Most items of food require high air humidity in order to stay fresh. To ensure that you get as much joy out of your refrigerator/freezer as possible, it is important that you become familiar with the its functions and know how to use the accessories. Please read the instructions for use carefully before setting up and using your refrigerator/freezer. As these instructions apply to several refrigerator/freezer models, the equipment may vary from model to model.

Before using the refrigerator/freezer

On receipt, check to ensure that the refrigerator/freezer has not become damaged in transport. Transport damage should be reported to the local supplier before the refrigerator is put to use.

Before lling the refrigerator/freezer with items of food, the refrigerator/freezer

interior should be cleaned with lukewarm water containing a mild detergent. Use a soft cloth. If the refrigerator/freezer has been stored in cold surroundings (colder than +5°C), it must be allowed to stabilise for at least 2 hours before being switched on.

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Content

Disposal ............................................................................................ 3

Safety Measures ........................................................................................ 4

Product Characteristics ........................................................................... 5

Before You Start .........................................................................................7

Operation.....................................................................................................8

Maintenance and Service ....................................................................... 13

Switching the Door Mounting ................................................................ 15

Spare parts ................................................................................... 14

Warning

Changes in internal and external appearance of a product, not affecting its functionality and safety, (e.g. shape of a door handle) are acceptable.

This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.

Disposing of the device

When disposing of the device, do not take it to regular municipal waste containers. Instead, take it to electrical and electronic waste recyc¬ling and reuse center. A relevant label has been put on the device, its instructions manual, or on the package. The device has been manufactured of recyclable materials. By bringing old device to recycling collection center, you show that you care about nature. Ask your local environmental care authority for information on location of

such facilities.

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Fig. 1

Safety Measures

Before you turn the refrigerator on. * When placing, moving or lifting the refrigerator, do not hold the door handle, do not pull the condenser at the back of the refrigerator, and do not touch the compressor unit. * After placing the refrigerator, wait two hours before you turn it on, for it could have been excessively tilted in transport. * The producer in not responsible for any damage resultant from violating the principles in the manual. Thus, read carefully the information on safety measures, operation, and maintenance of the refrigerator. * Please keep the manual for future use or for handing it over to the next user.

* Before any maintenance activity, pull the plug out, do not pull the cord but hold rmly

the plug. * Do not use double-wire extension cords; if an extension cord is necessary, make

sure it is a cord with protection pin and safety certicate.

* If the main power supply cord is damaged, it should be replaced by a service engineer. * Because of safety reasons, do not repair the appliance by yourself. Repairs carried out

by persons without proper qualications can cause serious risk of injury for the user.

* Defrosted products, even only partially, should not be frozen again. * Do not store contents in glass bottles or containers in the freezing chamber. The bottles and containers could break. * If the appliance is not to be used any more, make it completely safe prior to scrapping by cutting the cord. * Keep the packaging material (bags, Styrofoam pieces, etc.) out of reach of children. * Should the refrigerating unit be damaged, air the room for a few minutes (the room should have at least 4 cubic meters).

* Do not damage parts of the cooling system, i.e. do not punch pipes with sharp objects, do not squash, tie the pipes, do not scratch ice of the surface.

* The agent from the system can cause eye injury.

* The refrigerator should not be transported, moved, or placed in horizontal position and tilted more than 40°. Should such a situation occur, after placing the appliance in the right position wait at least 2 hours before turning it on.

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This single-compressor refrigerator / freezer (Phot.1) is designed for Laboratory use. The refrigerator chamber should be used exclusively for storage of products between 2 and 8 degrees C and the freezers operates at a standard -18 degrees C.

The refrigerators are designed for operation in the ambient temperature from +16°C to +32°C.

The elements of the cooling system of the

Product Cha rac te ri stics

IST 47

Installation and re mo val of shelves:

* In order to remove the shelf hold the right side of the shelf, lift the left side with your left hand about 45° and take the shelf out (Phot.2). * Start removing the shelves for cle¬aning with the top one, start putting them back in with the bottom one. * Shelves are put back in as follows:

- put the shelf in at an angle about 45°

Please nd on the product nameplate the interval of ambient temperature for which

this product is designed to have the best performances

Class Symbol Ambient Temperature Range °C Extended Temperate SN + 100C to + 320C

Temperate N + 160C to + 320C

Subtropical ST +180C to + 380C

appliance are located behind the back wall of the chamber in order to maximize the capacity of the chamber, facilitate keeping the chamber clean and increase durability of the product (protecting from potential damage).

(just like taking it out)

- align the projections with the grooves located at the sides of the refrigerator chamber.

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Product Cha rac te ri stics

IST 47

1572 mm

558 mm

600 mm

231 l

152 l

79 l

68 kg

8 kg/24 h

230 V ~50 Hz

0,55A

Technical parameters:

manual

Height

Width

Depth

Net capacity:

total

refrigerator

freezer

Weight

Freezing abi li ty

Power sup ply Rated current Defrosting of

refrigerator

freezer

automatic

Accessories IST 47 refrigerating chamber:

Wire shelf 3 pieces contents container 2 pieces

freezing chamber:

big drawer 1 piece small drawer 1 piece fast-freeze chamber door 1 piece

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Placement of the product

* Unpack the product, remove the tape securing the door and the accessories. Remove the remains of the glue, if any, with mild cleaning detergent. * Do not throw the Styrofoam element of the packaging away. Should you have to transport the product again, secure the refrigerator with the Styrofoam elements, the plastic foil, and Scotch tape. * Wash the inside of the refrigerator chamber and the freezer as well as the accessories with lukewarm water with some dishwasher liquid and then wipe it and dry. * Place the refrigerator in a dry, ventilated place, out of sun, far from such heat sources as central heating radiators, etc. * If you place the refrigerator next to another refrigerating or freezing unit, the lateral distance between the appliances should be at least 2 cm. * Make sure the product is placed level adjusting two turn-in front feet of the refrigerator. * Once placed, make sure the refrigerator is not standing on the power supply cord. * The refrigerator has two rollers in the back. The rollers, with the front lifted, facilitate adjustment moves of the refrigerator over short distances.

Before You Start

* No adjustments of the cooling unit are allowed. Make sure that the capillary tube, located in the recess of the compressor, is not damaged (Phot.3(1)). The tube cannot be deformed, straightened, or coiled. Damage of the capillary tube by the user waives the guarantee of the refrigerator. * For easy opening of the refrigerator door the distance between the side (the hinges side) and the room wall (or similar) should be at least 5 cm.

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Connection to the power sup ply sys tem

If the xed power supply cable is damaged, it should be replaced by the manufacturer or at an authorized servicing outlet, or by a qualied person to avoid danger.

Electrical connection

The appliance is intended for connection to alternating current. The connection values for voltage (V) and frequency (Hz) are given on the nameplate in the cabinet. Power must be connected via a wall socket with switch. The wall socket should be easily accessible. All earthed requirements stipulated by the local electricity authority must be observed. The cabinet plug and wall socket should then give correct earthed. If in doubt, contact your local supplier or an authorized electrician.

WARNING – This appliance must be earthed

The exible cord (mains lead) tted to this appliance has three cores for use with a

3-pin 13-amp or 3-pin 15-amp plug. If a BS 1363 (13-amp) fused plug is used, it should

be tted with a 13-amp fuse.

Note:

First connection to the mains. The appliance provides information about the higher temperature (Hi alarm ) till the moment of cooling. The alarm is signalised by a sound signal and “Hi" caption on the display. To cancel the alarm, press any push button. Until the moment of cooling, the alarm is repeated every 15 minutes. Such an operating mode is normal until the required temperature settings are reached.

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Operation

1. User interface

Button (1) ‘ I ’ (ON /OFF) – pressed for about 2-3sec – switches on and switches off whole product's controlling, Button (2) ‘lock’ – pressed for about 2-3sec – blocks the keypad – does not refer to button (1) driver switch off, Green LED diode (3) – indicates active blockade function, ‘-‘ minus diode (4) – indication of temperatures below zero, LED display (5) –temperatures, service parameters and alarm symbols display,

Button (6) ‘▼’ - minimum temperature preview or parameter value decrease, Button (7) ‘▲’ – maximum temperature preview or parameter value increase,

Button (8) AUX – functional button, Green LED diode (9) – indication of temperature programming mode – manual switch of AUX output,

2. First start up

After switching on, the driver activates the auto-test procedure. During the rst second, it displays dots, program version during next second, dots during the third second and then switches to normal work mode. During normal work mode, the display shows cooler temperature. In case of an alarm, it displays E with alarm number. If the driver is switched off, LED diodes are turned off and the display shows two horizontal lines. The display indicates temperature of the cooler-freezer within the range of –30oC to +30oC.

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3. SET UP

3.1 Temperatures programming (set range : from +2’C to +8’C) :

- short pressing of (8) AUX button – entering/leaving set temperature programming

mode. Buttons (6)‘▼’ and (7)‘▲’ are used to adjust settings. Diode (9) blinking indicates active function of set temperature programming; if button (6)‘▼’ or (7)‘▲’ is not pressed, after 10 seconds since the last pressing of (6)‘▼’ or (7)‘▲’ the driver will

leave the described mode.

3.2 Deleting recorded exceedance (MIN / MAX) :

- pressing buttons (6)‘▼’ and (7)‘▲’ for about 2-3sec results in deleting saved min/

max temperatures and saving current temperature in the driver’s memory.

5. Alarms

A displayed alarm should be saved even if the reason of the alarm does not exist anymore. Alarms are not saved after switching off (lack) of energy.

E1 – cooler sensor malfunction – if the reason of the alarm still exists, it can not be deleted, E2 – evaporator sensor malfunction – if the reason of the alarm still exists, it can not be deleted.

Hi – maximum set temperature of the product Lo – minimum set temperature of the product

Pressing a random button deletes the sound signal as well as Hi and Lo indications. E1,E2 deletion by means of turning off the on/off driver after prior elimination of a malfunction.

Storage of produce in the refrigerator

* Produce should be placed in boxes or in containers. Place contents on the shelves. Make sure the contents do not touch the back wall, this could lead to frosting or

wetting of the products. * Do not put any containers with hot content into the refrigerator.

* Make sure you mark the packages for easier identication of the content and take

down the date of the freezing. * The packaging should be tight and stick to the frozen product. Do not use glass packaging in the freezer compartment. * Freeze products divided into small portions for single use and / or examination.. * Depending on the quantity of the produce to be frozen, follow the instructions below. * Remember that the temperature in the freezing chamber is effected by such factors as the ambient temperature, quantities of products in the chamber, frequency of opening the door, amount of frost on the refrigerating elements of the evaporator. * If you close the freezer door and immediately after it cannot open the door, wait 1 - 2 minutes until the partial vacuum in the freezer is compensated.

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The appliance operates in cycles: it refrigerates (frost sets on the back wall during the

phase) and defrosts (water ows down the back wall).

* Turn off the main switch (Photo 4(1)). Unplug the mains cord. * Always prevent water from getting to the control panel.

* The whole appliance except the door gasket can be cleaned with mild cleaning detergent. The door gasket should be cleaned with water only and wiped dry. Detergents containing abrasive substances or acids are not suitable for the cleaning.

Defrosting the refrigeration chamber

Frost settles on the back wall of the refrigeration chamber. It is automatically removed. During the defrosting, the condensate can contain some impurities that could clog up the opening in the through pipe.. Should it occur, carefully unclog the opening with the cleaning plug. (Phot. 5).

Defrosting the freezer

* Bigger deposits of ice on refrigerating surfaces deteriorate the freezer compartment’s perfor¬mance and increase electricity consumption. * We advice defrosting the appliance at least 3 or 4 times a year when the level of contents in the refrigerator compartment is low. * The defrosting of the appliance should last as little time as possible. * You can speed-up the defrosting by placing a bowl with hot water on one of the freezer shelves. * Do not use an electric heater, heating fan, or a hair dryer to the freezer under any circumstances.

In order to defrost the freezer chamber:

* Turn off the main switch (Photo 4(1)). Unplug the mains cord. * Open the freezer door and take out the drawers. There are locks on the sides of the freezer preventing from accidental fall-out of the drawers. In order to take a drawer out, you have to pull it home, lift the front slightly and pull it out in the position.

* Place a at dish or the tray for freezing fruit under the funnel opening to collect the

condensate. * Do not use sharp objects to scratch-off the ice. * Wash and dry the inside of the freezer. * Turn on the appliance according to the relevant section.

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Maintenance and Service

Problem

The appliance does not work

The temperature inside the chambers is not low enough (the compressor operates continuously)

Water collects at the bottom part of the refrigerator chamber

The appliance makes too much noise

Reason

A gap in the electric system circuit

The compressor hardly ever activates

The door does not shut tight or is opened too often

The ambient temperature is above +32°C

Air circulation at the back of the appliance hampered

The appliance is placed in a sunny place or near a heat source

The contents touch the back wall of the refrigerator chamber

The drain opening is clogged

The appliance is not level

The appliance is touching a piece of furniture or other objects

Solution

- make sure the plug is pro per ly inserted into the socket,

- make sure there is elec tri ci ty in the socket by plugging in ano ther electric device, such as a ni ght lamp,

- make sure the power supply cord is not damaged,

- make sure the ambient temperature is not below +16°C,

- rearrange the products so as they do not hamper the door,

- shorten the time the door is opened,

- the appliance is de si gned for operation in temperatures from +16°C to +32°C,

- move the appliance a bit away from the wall,

- move the appliance to a different place,

- move the contents or containers awayfrom the back wall,

- take the cleaning plug and unclog the condensate opening,

- level the appliance,

- place the appliance de ta ched, so as it is not touching any objects.

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Different sounds may be heard during operation. The sounds do not effect correct operation of the refrigerator.

The sounds that can be heard during normal operation: * clicks - heard when the control activates or deactivates the compressor * buzz - the sound of the compressor intensely working shortly after its activation * crackles and clatter - coming from the cooling system, caused by expansion and shrinking of parts due to temperature differences before and after compressor activation * rustle, gurgle, whistle - coming from the cooling system piping, caused by the coolant

owing inside.

Easily corrigible sources of noise: * noise caused by the appliance positioned not level - adjust the position with the adjustable turn-in front feet. * rubbing the adjacent piece of furniture - move the refrigerator a bit. * creaking of the drawers and shelves - take out and put back the drawer or shelf. * sounds of clinking containers / bottles - move the bottles apart.

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Maintenance and Service

Energy saving

* Place the refrigerator away from heat sources (such as radiators and ovens (Phot.6). * Make sure air can circulate freely around the refrigerator, move it away from the wall at least 1 cm. * Let dishes cool down before putting them into the refrigerator, at least to room temperature. * Move the frozen food to the refrigerator while defrosting. You will utilize the low tem pe ra tu re of the frozen food for co oling the products gathered in the refrigerator chamber. * Defrost when there are ice deposits. Thick layer of ice ham pers cold transition to the food and increases electric energy con sump tion. * Keep the door open as shor tly as po ssible when putting in or taking out food. The shorter the time the less ice will deposit on the evaporator.

the degree the appliance is lled up to.

Knowing that you will not use the refrigerator for a longer period of time:

* Set the temperature control dial to „0” and unplug the ap plian ce. * Empty the refrigerator and the freezer compartments (as ne eded). * Clean and dry the refrigerator or the freezer compartment. Wash carefully all the accessories (ve geta ble containers, door shelves, glass shelves, shelf frames).

* Leave the refrigerator door slightly open to prevent the chambers from getting unpleasant smell.

Maintenance

* Periodically, once or twice a year, use a vacuum cleaner to dust the evaporator (black bars) located in the back of the refrigerator. Before the cleaning, set the tem pe ra tu re control dial to „0” and unplug the appliance. Make sure you do not damage the electric wires, the protection boxes and the capillary tube while cleaning.

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Switching the Door Mounting Side

(1)

● Turn off the main switch (Photo 4(1)). Unplug the mains cord.

● Empty the refrigerator-freezer of food

products.

● Inc line th e refr iger ato r-fr eeze r

back¬ward at an angle of 45o to allow the access to the lower hinge.

● Unscrew both leveling feet.

● Use th e cros s scre wdr iver to

un¬screw 3 tap screws of the lower hinge, (see photo no.7)

● Remove th e freezer ’s door and

po¬sition it safely near-by, preventing them from falling down.

● Unscrew 3 cross tap screws of the

base of the leveling foot. Using the same cross tap screws assemble the base of the leveling foot on the hinge position located on the right side of the refrigerator, (see photo no.8).

● Unscrew the nut from the lower hinge,

unscrew the bolt from the right opening and screw in the bolt home in the left opening of the hinge. Fasten the bolt by using the nut.

● Unscrew and dismount the middle

panel - (see photo no.9).

● Use the cross screwdriver to unscrew

4 tap screws of the central hinge, (see photo no.10). Remove the refrigerator’s door and position it safely near-by, preventing them from falling down.

● Unscrew two pivots and screw them

onto the hinge at the opposite side, into the most external holes - (see photo no.11).

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● Insert the central hinge bolt into the bush of the refrigerator’s door lower slat and

screw in the hinge tight with use of the cross screwdriver.

● Assemble the freezer’s door by inserting the central hinge bolt into the bush of

the door upper slat.

● Insert the lower hinge bolt into the bush of the door lower slat and screw in the

hinge tight with use of the cross screwdriver.

● Screw in the leveling feet.

● Unscrew the refrigerator’s and freezer’s door handles.

● Stop openings by inserting stoppers removed from openings on the opposite side

of the door or taken from the auxiliary outt.

● Assemble handles on the opposite side of the door.

● Start up and switch on the refrigerator-freezer in accordance with the relevant

instructions contained in the operation manual.

Switching the Door Mounting Side

● Use the screwdriver to unscrew the

bolt positioned under the control panel on the right side of the refrigerator and screw in the bolt home in the opening on the left side, (see photo 11).

● Assemble the refrigerator’s door by

inserting the upper bolt into the bush of the door upper slat.