ilshin Lab Co Deep Freezer Series User Manual ver 1.6 Jan 2003

Contents 1. Dimensions of the Freezer Models 1.1. Chest Model

3 3

1.2. Upright Model

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2. Installation 2.1. Installation Place

5 5

2.2. How to install

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3. Power supply how to earth and main power switch 3.1. Power supply 3.2. How to earth 3.3. Main Power Switch

6 6 6 6

4. Index of the parts and functions

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4.1. Index of the parts (Chest Model) 4.2. Index of the parts (Upright Model) 4.3. Index to control panel and function

7 7 8

4.4. How to operate

9, 10, 11

5. Accessories 5.1. CO2 Back Up System (optional) 5.1.1. Index of the parts 5.1.2. How to install the CO2 Back Up System 5.1.3. How to set the temperature of the Back Up System 5.1.4. Consuming time for CO2 Gas 5.2. Voltage Booster (for external model) 5.2.1. Index of the parts 5.2.2. How to install the external power booster 5.3. Data Acquisition System (optional) 5.3.1. Index of the parts

12 12 12 13 13 14 15 15 15 16 16

5.3.2. How to install 5.3.2.1. Installation 5.3.2.2. How to run

16 16 16

5.3.2.3. Features

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6. Service 6.1. Service Troubleshooting 6.2. Requesting an Engineer 6.3. Refrigeration drawing cascade refrigeration

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6.4. Electrical schematic 6.5. Electrical schematic of the control panel 6.6. Charging quantity of refrigerant 6.7. Refrigerant quantity for Chest Models

20 21 22 22

6.8. Refrigerant quantity for Upright Models

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7. Warranty and contact information 7.1. International Warranty

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7.2. Contact Information

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Operation Manual

1. Dimensions of the freezer models 1.1

Chest Model

H

D W

Model No. DF4507 DF9007 DF4510 DF9010 DF4515 DF9014 DF4517 DF9017 DF4520 DF9020

Exterior Dimensions WxDxH

Interior Dimensions WxDxH

Capacity (L)

1280x790x1030mm

570x500x670mm

191

1590x790x1030mm

870x500x670mm

295

1880x790x1030mm

1170x500x670mm

392

2180x790x1030mm

1470x500x670mm

492

2480x790x1030mm

1770x500x670mm

593

* The operating temperature of Model DF45** is - 20°C to – 40°C, and for the Model DF90 –40°C to – 80°C. In addition, if the last two numbers (**) of the model are the same, the same operating temperature is applicable.

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Operation Manual

1.2

Upright Model

H

D

W Model No. DF3510 DF8510 DF3514 DF8514 DF3517 DF8517 DF3520 DF8520

Exterior Dimensions WxDxH

Interior Dimensions WxDxH

Capacity(L)

920x900x1740mm

600x480x960mm

276

920x900x2060mm

600x480x1280mm

369

920x1050x2060mm

600x630x1280mm

484

1070x1050x2060mm

750x630x1280mm

605

* The operating temperature of Model DF35** is -20°C to – 40°C, and for the Model DF85 ** this is –40°C to –80°C. In addition, if the last two numbers (**) of the model are the same, the same operating temperature is applicable.

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2. Installation 2.1

Installation place 1. Not subject to direct sunlight 2. Adequate air circulation 3. Not subject to excessive dust 4. Not subject to mechanical vibration or shock 5. Operating temperature: 5°C to 28°C 6. Operating moisture: below 80%(if the max. operating temperature is 28°C , it should be below 57%) 7. Allowance of supplying voltage change: lower than 10%

If the unit is not installed in conjunction with the above it will not operate correctly

2.2

How to install 1. Keep a distance of at least 30cm between the wall and the rear of the unit. 2. Do not install the unit in an uneven position. 3. Make the unit secure with fixing screws on a sloping floor. 4. The ventilation should not be obstructed.

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3. Power supply, how to earth and main power switch 3.1

Power supply 1. To ensure trouble-free connection, connect the plug firmly in the power socket. 2. Do not connect into the same socket as other units. 3. Make sure that the power cable is not folded or pinched.

4. If you use an extension cable, it should have a capacity above 250V, 15A and be no longer than 3m.

5. This unit is exclusively designed for 230V, 50Hz, please check the operating voltage, before use.

3.2

How to earth 1. For safety reasons, the unit should be earthed.

3.3

Main Power Switch

Main power switch The main power switch is located on the back of the freezer. (Old models have the main power switch behind the condenser door next to the condenser) After power supply is checked and the unit is earthed, open the condenser door. By switching the main power switch to ON position the Freezer will be ready for operation * If the freezer is not in use: please put the main switch to OFF position

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Operation Manual

4. Index of parts and functions 4.1

Index of the parts (Chest Model)

Sensor inlet (back)

Handle

Control panel

Optional recorder Locking device

Condenser door Wheel

4.2

Index of the parts (Upright Model) CO2 back up inlet (on top of unit)

Locking device Control panel

Sensor inlet (on side of unit)

Optional recorder

Wheel Condenser door

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Operation Manual

4.3 Index of control panel and functions Temperature Display

Alarm indicator

2. Scan

6. Voltage 1. Key Switch 3. Cursor

4. Numeric

5. Alarm

Lamp

1. KEY SWITCH 2. SCAN 3. CURSOR 4. NUMERIC 5. ALARM 6. VOLTAGE

NO. BUTTON 1. KEY SWITCH

2.

SCAN

3. 4. 5.

CURSOR NUMERIC ALARM

6.

VOLTAGE

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CONTROLS -During OFF, all functions are stopped -During SET, all functions are working, and it is possible to adjust the temperature -During ON, the unit is operating as planned, and it is not possible to adjust the temperature. *Function blocking system: If you take out the key during ON, all functions will be blocked (Please keep the key safe) -This button is to select each temperature mode (Only if the KEY SWITCH is set to SET) -This button is to select a position of numerical value -This button is to change a numerical value -If the inside temperature of the unit exceeds the alarm temperature range, an error message will appear on the temperature indicator. The lamp will be on and the alarm signal will sound. (Push the alarm button to mute the alarm) -This button indicates the voltage (Push the button, then the voltage will be indicated on the Temperature indicator

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Operation Manual

4.4

How to Operate 1. Turn the KEY SWITCH to the right and set it to SET. 2. All functions will be operational. The PRESENT lamp will be on and the inside temperature of the Chamber will be shown. 3. Push the SCAN button once to check the temperature. The SET POINT lamp will be on. (To adjust SET POINT, use the CURSOR button and NUMERIC button) 4. Push the SCAN button once more to check minimum alarm temperature. Then, the COLD ALARM lamp will be on. (To adjust the COLD ALARM temperature, use the CURSOR button and NUMERIC button) * The COLD ALARM temperature should be set lower than the SET POINT 5. Temperature: e.g. If the SET POINT temperature is –70°C, the COLD ALARM temperature is –75°C. 6. Push the SCAN button once more to check the maximum alarm temperature. Then, the WARM lamp will be on. (To adjust the WARM ALARM temperature, use the CURSOR button and NUMERIC button) * The WARM ALARM temperature should be set higher than the SET POINT temperature: e.g. If the SET POINT temperature is –70°C, the WARM ALARM temperature is –65°C. 7. Push the SCAN button once more to turn on the PRESENT lamp showing the current inside temperature of the deep freezer. 8. Now, everything is set. Turn the KEY SWITCH to the right once more and set it to ON. Take out the KEY by pulling it to the front. Please keep the KEY safely to change the temperature in the future. (As long as the key is taken out, it is impossible to set the temperature. It prevents tampering of the temperature by a third party or by mistake. 9. To check the voltage, push the VOLT button, then, the current incoming voltage will be shown on the temperature indicator.

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10. If a voltage Booster is fitted: i. If the input voltage is lower than 205V, the lamp of the Booster will be on and the voltage increased e.g. 205V->220V (15V boosted) ii. If the input voltage is lower than 180V, the operation of the unit will be stop to protect the parts of the unit. (The functions such as temperature indication and alarm, are still operating) 11. In the case that the voltage Booster is not fitted: -If the input voltage is lower than 205V, the alarm sign for low voltage LO-V will show up regularly. (It is advisable that the unit is fitted with a voltage booster). 12. Error indication LO-T: Cold Alarm (If the temperature is lower than the Cold Alarm temperature) * Adjust the temperature lower or please ask our technical department or service centre. HI-T: Warm Alarm (If the temperature is higher than the Warm Alarm temperature) * Warm Alarm (If the temperature is higher than the set Warm Alarm temperature) LO-V: Low Voltage (If the input voltage is lower than 205V) * Please, do not use other electrical appliances and take some actions to boost the voltage. CLEAN: Clean (When the outdoor temperature is above 28oC or the ventilation of the condenser is bad) Clean the dust from the condenser and make sure the cabinet is well ventilated. BATE: Operation condition of charging battery (In the case that there is a power failure) * If the power failure is for a lengthy time, please use a CO2 Backup System or move the contents to a safe place. Labcold ilShin

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Operation Manual

LOAD: Rapid temperature rise (If the door of the unit is open for a long time, or the new load is too big). Please, check whether the door is open. When loading new samples, please do it in small quantities as quickly as possible. 13. The unit is set ex-works, in a standard way, as follows:

DF9007 ~ 9020 DF8510 ~ 8520

SET POINT -80 °C COLD ALARM -90 °C WARM ALARM -70 °C

DF4507 ~ 4520 DF3510 ~ 3520

SET POINT -40 °C COLD ALARM -50 °C WARM ALARM -30 °C

* There can be differences in the standard temperature of SET POINT, COLD ALARM AND WARM ALARM depending on the model

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5. Accessories 5.1

CO2 Back Up System (optional)

5.1.1 Index of the parts

Rear Side

Power supply cord

Sensor

Connect Cable to Door Switch (grey cable to back of freezer) Labcold ilShin

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Operation Manual

5.1.2

How to install the CO2 Back up system

1. Connect a temperature resistant tube between the opening of CO2 cylinder and the (4) IN of the rear side. 2. Insert the injection rod of CO2 into the inlet on top of the unit, and connect the rod to the (5) OUT of the rear side of Control System with a tube. 3. Insert the Sensor Line of the Chest Model and Upright Model into the holes at the back and right side. 4. Open the valve of CO2 cylinder and check with soapy water whether there is a leakage around connection part. 5. Connect the power supply. (If the inside temperature of the deep freezer is higher than the set temperature, CO2 gas will be injected. Please, connect the power supply under the set temperature). 6. Put the pressure release valve in one of the empty validation ports in the side of the freezer. This pressure release valve prevents the freezer building up too much pressure due to the CO2 evaporated in the freezer during a temperature alarm. (De-ice this port monthly) 7. Switch on the BATTERY SWITCH *N.B.: The BATTERY SWITCH should be OFF during moving, storage, or POWER OFF. (When the BATTERY SWITCH is on for a long time with power OFF, the battery will be discharged and should be replaced). 8. Switch the ALARM SWITCH on, to activate the alarm signal. When the ALARM SWITCH or BATTERY SWITCH is off, the alarm signal will not be activated. *N.B.: When you replace the used CO2 cylinder, please, use the CO2 cylinder with Siphon Tube, not general CO2 cylinder. *N.B: When the door is open during injection of CO2, the injection should be stopped automatically to protect the user. 5.1.3 How to set the temperature of the CO2 back up system How to set temperature - Push (1) SET SWITCH -To change the set temperature, while you continue in pushing the button (1) SET SWITCH, turn the (3) TEMP.ADJ. to the left and right to set the temperature. -Release the SET at the chosen temperature, the PRESENT lamp will be on and the current temperature of the chamber will be shown. o -The temperature is set to –40 C, exworks, in a standard way. Labcold ilShin

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Remarks - If the temperature goes up, because of the failure of power or technical problem, the temperature set to the BACK UP SYSTEM, will be observed. Thus, the damage on the sample in the unit can be limited to the minimum.

Operation Manual

5.1.4

Consuming time of the CO2 gas Tested by on the base of the following conditions:

Model: DF8517 (480 litre)

CO2 cylinder capacity: 40 litre

CO2 Gas charge capacity: 40 litre

DF Temp. Setting: - 70°C

(table)

CO2 Backup System: Temp. Setting: - 40°C

A

B

C

D

Section A

B

C

D

Description Remarks -Normal operating section during –70°C setting -Deviation:- 71°C to -75°C -ON/OFF: 10 minutes ON, 20 minutes OFF -Non-operational (failure of power or technical problem): section for natural radiation of heat -Duration from –70°C to –40°C: 2 hours - CO2 Gas injecting section during – 40 °C - Deviation:-41°C to – 44°C - Consuming time for 40 litres CO2 gas injection: 9 hours (13.5 min / litre) -Section for natural radiation of heat, after consuming up the CO2 Gas Duration from – 40°C to – 20°C: 2.5 hours *This test has been done under the circumstance of the outdoor temperature of + 20°C and the unloaded state.

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5.2 Voltage Booster (external model) 5.2.1 Index of the parts

Voltage Booster

Voltage Booster

Power Supply Cord

5.2.2 How to install the external Power Booster (Model:VB0081)

Power Socket

How to install 1. Plug the main cord into the power socket 2. Plug the main cord connected to the unit, into the socket of the VOLTAGE BOOSTER. 3. If the POWER ON lamp is on, the power is supplied. 4. If the voltage is not stable, the Booster lamp is on showing that the booster is operating.

Remarks * Because the VOLTAGE BOOSTER maintains the operating voltage, the machine can be protected and normal operation is possible.

*For the internal model, this machine is installed inside of the unit.

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5.3. Data Acquisition System (Optional) 5.3.1 Index of the parts

5.3.2. How to install 5.3.2.1 Installation 1. Connect the 9 Pin connector of RS232 port to the COM1 or COM2. 2. Connect the 9 Pin of RS232 to the Jack at rear of the freezer. 3. Insert the temperature sensor into the test sample through the sensor insert hole and connect the 2 Pin connector, which is connected to the sensor, to the jack of the controller of the deep freezer. 4. Install the RS232 program on the hard disk of computer (The way of loading: B:>IS C: enter) 5.3.2.2

How to run

1. C:>CD ILSHIN enter 2. C:ILSHIN>ILSHIN enter (* Instructions on other details can be given during visit, if necessary) 5.3.2.3 Features 1. General This is a program in which you can see and record the change of the temperature of the test sample and the inside temperature of the deep freezer on the monitor, by connecting the deep freezer to the PC through the Serial Port (RS232 C). In addition, you can directly adjust the set values in the PC. 2. Operating Program * Menu block and Help: The operation of this program makes use of menu choice system per function. This menu is composed of a main menu and a sub menu. Each function has a message line, which is equipped with a help function, which tells how to manage the keys. Labcold ilShin

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6. Service 6.1

Service Troubleshooting

Symptom 1.The voltage of the power supply is irregular - The operating voltage for this unit is 215V to 225V. When there is a deviation from this range of voltage, the compressor cannot work efficiently or cannot operate. 3. When the room temperature is above + 28°C - When the room temperature is above + 28°C, the condenser cannot be cooled. It can be a cause of the fault 4. When the room temperature is under 0°C - The oil in the compressor will be condensed. It can have a negative effect on the operation of the compressor - Each electrical part can be wrongly operated. 5. If there is excessive dust around the unit - This unit uses a condenser which is air cooled. In case of excessive dust around the unit, dust will pile up at the front of the condenser. This will cause the compressor not to work effectively. This is one of the causes of a compressor failure. 6.Under heavy humid circumstances - It can cause a technical malfunction in the electrical applications and short circuit.

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Remedy - When used in where the voltage is irregular supplied, please use AVR (for 220V) or the Voltage Booster option.

- If the room temperature around the unit is + 28°C, please open the condenser door and the window(s) of the room to optimise the ventilation and cooling. - If the room temperature is under 0°C, raise the temperature of the room to at least + 5°C

- If there is excessive dust around the unit, the door, which covers the condenser should be opened once a month and the dust filter should be removed and cleaned. Also wipe the dust off the condenser with a soft brush

- Ventilate the space properly by using a ventilator or by opening the windows - An application, which can reduce moisture, will be helpful.

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6.2

Requesting an Engineer

* Before you call for an engineer, please read the following information: 1. The unit does not operate at all. Check the power supply (230V) Check that the temperature is set correctly Check that the unit is too close to an external heat source Check that there is sufficient air flow around the cabinet Check that the condenser is blocked by dust (Remedy: wipe off the dust with a soft brush) Check if a large amount of new product has just been loaded. (Remedy: this is a temporary fault.) 2. The unit is noisy. Please, check whether the floor is even. Please check if the noise is coming from the compressor. The compressor is larger than those fitted to standard freezers and is therefore noisier Do you hear a whining sound? This unit is equipped with large fan motors that are used for air cooling. When the fan motor is running, you can hear some noise. Do you hear a knocking sound? This sound originates from the parts of the unit, when they are expanded or shrunk. Do you hear water running? The unit has refrigerant circulating and this is what you hear. It is not a technical problem. 3. A layer of ice has formed on the inside wall of the deep freezer Do not overload the unit If a sample contains much moisture, ideally place it in a closed container Please, check whether the door is closed. Please, reduce the length of time the door is left open Labcold ilShin

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6.3

Refrigeration drawing cascade refrigeration

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