Labnics Equipment LF-300C Manuale utente

Instruction Manual

ULTRA-LOW TEMPERATURE FREEZER

Model : LF-300C

Labnics Equipment

Please read this manual carefully before using the instrument

Thank You for Buying a LABNICS Freezer!

For your personal safety and better performance of the unit, please read this Instruction

Manual thoroughly and save it properly for future reference.

Failure to read, understand and follow the instructions given in this manual may result in

damage to the unit, injury to operating personnel and poor equipment performance.

The material in this manual is for information purposes only. The contents and the product it

describes are subject to change without notice. LABNICS makes no representations or

warranties with respect to this manual.

Always take precautionary measures (clothing, gloves, goggles etc.) while using the

equipment. Always dissipate extreme cold or heat and wear protective clothing.

Always follow good hygiene practices.

Each individual is responsible for his or her own safety.

SAFE CUE:-

Please read this manual carefully while using our machine for the first time.

The one who operates Ultra Low temperature Freezer should be trained and authorized.

The maintenance of equipment should be made by LABNICS or their agent.

If you have some query whose solution is not given in the manual, then please contact

LABNICS or agent, and ask the right way to solve it.

It is better to use LABNICS fittings, because in case customer use other's spare parts then

LABNICS will not take any responsibility for the malfunction and damage caused to the

equipment. But customers can contact LABNICS.

Should check and keep proper maintenance of Ultra low temperature freezer at the proper

time.

Avoid storing alive life, flowers and others which are not fit for the low temperature.

To ensure proper ventilation and functions of freezer, keep body back and both sides of

freezer away from the wall at least 30cm apart and should not be blocked by any barrier.

When working with Ultra Low temperature Freezer, inner temperature remains very low. So

do wear glove while touching the cover board.

If the power gets shut off, wait for 5 minutes to connect again so as to prevent compressor

damage.

Table of Content

CHAPTER CONTENT PAGE No.

1 Schematic Picture and Description 1

2 Pre-installation 1

3 Operation Direction 2

3.1 Using For the First Time 2

3.2 Adjust the Temperature 3

4 Defrost, Unused, Maintenance 4

4.1 Defrost 4

4.2 Maintenance 4

5 Service After Sale 4

6 Technical Information 5

7 Circuit Diagram 5

8 Service Report 6

Body

Handle

Door Body

- 1 -

CHAPTER1. SCHEMATIC PICTURE AND DESCRIPTION:-

Ultra-low temperature freezer is designed to store materials under very low temperature condition for hospitals,

epidemic stations, blood banks, research institutes, universities, biological pharmaceutical industries and gene

engineering, etc. The internal temperature in cabinet can be easily adjusted through the keys on control panel. All

operations are convenient and reliable.

CHAPTER 2. PRE-INSTALLATION:-

Notice: While moving the freezer, wheel should not damage the line.

Notice: Take away the packing base before running the freezer.

Notice: After connecting the power supply, do not keep the goods immediately in the freezer. Please wait for

about 12 hours

1) How to Transport: Pick up the unit from the bottom of tank and a slant with 45° is acceptable. All

transportation should be done carefully.

2) Remove all wrappers.

3) Check accessories and documents according to package list.

4) Clean the unit thoroughly before any operation.

5) Installing Location: Do not keep the unit in direct sunlight or near heating diffusers, radiators, or other

sources of heat. The ambient temperature should not exceed 32 C. A minimum 20cm space on the sides,

rear and top should be provided for better air circulation and heat discharge. Avoid location where there is too

much cold, high humidity and can be easily splashed by water.

- 2 -

6) Freezer working conditions are:-

Ultra Low Temperature Freezer Working Rule: Running intermission

P3 : N and E ports can't connect

Safety Introduction:-

CHAPTER 3. OPERATION DIRECTION:-

3.1 When Using For the First Time:-

o o

Environment temperature: 10 C to ~ 40 C.

Relative Humidity: ≤80%.

No strong shake and caustic gas around.

No sunshine and other cold/hot power effect.

1) Power supply: This LF-300C freezer is designed for operating under 220V/50HZ AC power supply. The unit

can normally start under the voltage varying from 198V to 242V.

2) Must provide one single exclusive plug receptacle with credible grounding to the unit.

3) Inflammable and explosive materials, as well as high corrosive acid and alkali must be strictly prohibited in

cabinet.

4) Keep the keys properly, so that the children's can't be able to open the back door which may result in

unexpected injury.

5) To avoid cold injury, please place and remove goods with protective gloves.

1) Please use the warm water and then little scour it to clean the freezer.

2) To adjust the freezer at -40 C, connect the power, compressor will start after 3 minutes. Now 30 minutes

later, the freezer temperature drops and it mean the refrigeration system is normal. We advice you to

o o

first adjust the temperature at -35 C, then after stopping the machine, set temperature at -40 C.

3) Keep the goods in freezer only after the temperature drops.

4) To save the power, please don't often open and close the door.

set

- 28

- 3 -

3.2 Adjust the Temperature:-

Display Temperature

How to set the temperature:-

The control panel can adjust manually, step as A-B :

5 seconds after turning on the power, screen will display the current temperature. Please follow the following steps

to adjust the temperature:-

Press "Set" 2 seconds, will shows the current temperature and glitter.

Through 5 or 6 keys you can increase or decrease the temperature, then press the "set" key to

confirm the temperature. If after 30 seconds it doesn't get confirm, it means that the temperature set is

invalid, and will automatically show the original temperature.

High/low temperature alarm: The factory original figure is 10, it mean that the alarm will lights up if the

temperature is higher or lower than 10 C, and the alarm is also equipped with the buzzer. (Press "set"

which can stop the alarm). It is quite normal, if the alarm buzzes when used for the first time till

temperature comes down and then alarm will get cancelled automatically.

P4 is the direction to show compressor starting: "1" lighting all the time: means the compressor

is running. 1 Glittering Durative: means the compressor is still waiting to get started. (Connect the

power and start after 3 minutes). If compressor glitters twice and halts once, it means the compressor is

running all the time.

Press "3" key for 5 seconds for continuous activation or stop the compressor. For regular working of

freezer and to provide protection to compressor, don't press the "3" beyond 5 seconds.

Press "4" key for 5seconds to close the freezer, within 35minutes the compressor stops and the screen

* will start lighting and thus show the temperature at a time when freezer is closed.

LABNICS hold the right to update or improve the products.

If you have not entered the other parameters carefully, then please don't change them randomly.

(Do not use the "set" key). Connect the power again.

- 4 -

CHAPTER 4. DEFROST, UNUSED, MAINTENANCE:-

4.1 Defrost:-

4.2 Maintenance:-

CHAPTER 5. SERVICE AFTER SALE:-

Problem Possible Cause

If there is some frost on the surface of chamber for a long time then it will decrease the performance of

freezer. So if the thickness of frost is more than 10mm then some defrost operations are recommended.

After the freezer working for 192hours, system will get automatic defrost.

Do not keep heavy goods in the freezer so as to prevent the body.

Should clean the freezer at regular intervals. (For safety purpose, please draw out the power pin first).

Use soft and warm cloth to clean the freezer inner and outer surface.

Please use the scour to wipe and then clean with soft cloth.

Once the freezer starts working it is best to use it continuously.

DO NOT sprinkle water on the faces of cabinets, which may decrease insulating property of electric

parts and rust metal parts.

DO NOT use hot water, corrosive cleanser and organic solvent!

Note: Prohibit the children for playing games around the freezer.

Some unexpected failures may arise during running. Please pay attention to the running status of your LF-300C

freezer. If any exceptional case arises, please check and solve it according to the following introductions. If the

problem is not solved well, please contact our service center for details.

ULT freezer does not operate Power outage has occurred.

The plug is bad or not securely plugged-in.

Fuse is blown.

Voltage is too low or too high.

Compressor does not work Power in control panel is off.

Temperature setting is wrong.

Temperature is higher than setting Frost in inner wall is too thick

The door is not closed properly or is opened too frequently.

Overfull materials are put into chamber.

Ambient temperature is too high.

Too great noise Freezer is not leveled well.

Freezer leans upon the wall.

- 5 -

Below are normal operations:

CHAPTER 6. TECHNICAL SPECIFICATIONS:-

CHAPTER 7. CIRCUIT DIAGRAM:-

Power Supply :

All technical parameters and circuit diagram in nameplate are final ones for your units.

There are some light clashes when the compressor starts up and stops.

During rainy and watery season some frost may accumulate on the surfaces of cabinets. Please clean it with

dry rag.

DO NOT open the door twice within 5 minutes. This may lead the hot air into the interior of freezer and the

door may be difficult to open because of a negative pressure due to a sharp decrease of temperature of this

part air.

Model No. LF-300C

Valid Capacity (L) 135

o o

Temperature -10 C to -40 C

Input Power (W) 200

Size (D x W x H) mm 623 x 544 x 1123

Weight (Kg) 54

Catalog No. 04590303

Thermometer

Compressor M1

Start Relay Run Cap

M2 Cool Fan

Microprocessor-based

Controller

Customer’s Address :

SERVICE REPORT

Contact Person / Designation :

Tel.No.:

Fax No.:

Weekly Off.:

Dept.:

Date

Nature of Problem :

Observation & Action Taken :

Customer’s Remarks :

Parts Replaced :

Parts Recommended / Action Required : Yes

Service Engineer’s Name & Signature

Requisition Number :

Customer’s Name, Signature, Date & Stamp

Page ____ Of ____

Model Serial No.

Date :

Status : OK

Installation

Demonstration

Maintenance

Repairs

Application

Calibration

Validation

Not OK

Warranty

Contract

Billable

Courtesy

SR. No.

System

Configuration

Time

From To

- 6 -

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